DevicePolicyManagerService.java revision ba51235ef5c598d845b77fcf14491329493da34f
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.devicepolicy; 18 19import com.google.android.collect.Sets; 20 21import static android.Manifest.permission.MANAGE_CA_CERTIFICATES; 22import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 23import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 24import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 25import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES; 26import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 27import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 28import static org.xmlpull.v1.XmlPullParser.END_TAG; 29import static org.xmlpull.v1.XmlPullParser.TEXT; 30 31import android.Manifest.permission; 32import android.accessibilityservice.AccessibilityServiceInfo; 33import android.accounts.AccountManager; 34import android.annotation.NonNull; 35import android.app.Activity; 36import android.app.ActivityManagerNative; 37import android.app.AlarmManager; 38import android.app.AppGlobals; 39import android.app.IActivityManager; 40import android.app.Notification; 41import android.app.NotificationManager; 42import android.app.PendingIntent; 43import android.app.StatusBarManager; 44import android.app.admin.DeviceAdminInfo; 45import android.app.admin.DeviceAdminReceiver; 46import android.app.admin.DevicePolicyManager; 47import android.app.admin.DevicePolicyManagerInternal; 48import android.app.admin.IDevicePolicyManager; 49import android.app.admin.SystemUpdatePolicy; 50import android.app.backup.IBackupManager; 51import android.content.BroadcastReceiver; 52import android.content.ComponentName; 53import android.content.ContentResolver; 54import android.content.Context; 55import android.content.Intent; 56import android.content.IntentFilter; 57import android.content.pm.ActivityInfo; 58import android.content.pm.ApplicationInfo; 59import android.content.pm.IPackageManager; 60import android.content.pm.PackageInfo; 61import android.content.pm.PackageManager; 62import android.content.pm.PackageManager.NameNotFoundException; 63import android.content.pm.ResolveInfo; 64import android.content.pm.ServiceInfo; 65import android.content.pm.UserInfo; 66import android.database.ContentObserver; 67import android.graphics.Bitmap; 68import android.media.AudioManager; 69import android.media.IAudioService; 70import android.net.ConnectivityManager; 71import android.net.ProxyInfo; 72import android.net.Uri; 73import android.os.AsyncTask; 74import android.os.Binder; 75import android.os.Bundle; 76import android.os.Environment; 77import android.os.FileUtils; 78import android.os.Handler; 79import android.os.IBinder; 80import android.os.Looper; 81import android.os.PersistableBundle; 82import android.os.PowerManager; 83import android.os.PowerManagerInternal; 84import android.os.Process; 85import android.os.RecoverySystem; 86import android.os.RemoteCallback; 87import android.os.RemoteException; 88import android.os.ServiceManager; 89import android.os.SystemClock; 90import android.os.SystemProperties; 91import android.os.UserHandle; 92import android.os.UserManager; 93import android.os.UserManagerInternal; 94import android.os.storage.StorageManager; 95import android.provider.ContactsContract.QuickContact; 96import android.provider.ContactsInternal; 97import android.provider.Settings; 98import android.security.Credentials; 99import android.security.IKeyChainAliasCallback; 100import android.security.IKeyChainService; 101import android.security.KeyChain; 102import android.security.KeyChain.KeyChainConnection; 103import android.service.persistentdata.PersistentDataBlockManager; 104import android.text.TextUtils; 105import android.util.ArrayMap; 106import android.util.ArraySet; 107import android.util.Log; 108import android.util.PrintWriterPrinter; 109import android.util.Printer; 110import android.util.Slog; 111import android.util.SparseArray; 112import android.util.Xml; 113import android.view.IWindowManager; 114import android.view.accessibility.AccessibilityManager; 115import android.view.accessibility.IAccessibilityManager; 116import android.view.inputmethod.InputMethodInfo; 117import android.view.inputmethod.InputMethodManager; 118 119import com.android.internal.R; 120import com.android.internal.annotations.VisibleForTesting; 121import com.android.internal.statusbar.IStatusBarService; 122import com.android.internal.util.FastXmlSerializer; 123import com.android.internal.util.JournaledFile; 124import com.android.internal.util.Preconditions; 125import com.android.internal.util.XmlUtils; 126import com.android.internal.widget.LockPatternUtils; 127import com.android.server.LocalServices; 128import com.android.server.SystemService; 129import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 130import com.android.server.pm.UserRestrictionsUtils; 131 132import org.xmlpull.v1.XmlPullParser; 133import org.xmlpull.v1.XmlPullParserException; 134import org.xmlpull.v1.XmlSerializer; 135 136import java.io.ByteArrayInputStream; 137import java.io.File; 138import java.io.FileDescriptor; 139import java.io.FileInputStream; 140import java.io.FileNotFoundException; 141import java.io.FileOutputStream; 142import java.io.IOException; 143import java.io.PrintWriter; 144import java.nio.charset.StandardCharsets; 145import java.security.cert.CertificateException; 146import java.security.cert.CertificateFactory; 147import java.security.cert.X509Certificate; 148import java.text.DateFormat; 149import java.util.ArrayList; 150import java.util.Arrays; 151import java.util.Collections; 152import java.util.Date; 153import java.util.List; 154import java.util.Map.Entry; 155import java.util.Set; 156 157/** 158 * Implementation of the device policy APIs. 159 */ 160public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 161 162 private static final String LOG_TAG = "DevicePolicyManagerService"; 163 164 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 165 166 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 167 168 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 169 170 private static final String TAG_STATUS_BAR = "statusbar"; 171 172 private static final String ATTR_DISABLED = "disabled"; 173 174 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 175 "do-not-ask-credentials-on-boot"; 176 177 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 178 179 private static final long MS_PER_DAY = 86400 * 1000; 180 181 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 182 183 protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 184 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 185 186 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 187 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 188 189 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 190 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 191 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 192 193 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 194 195 private static final int STATUS_BAR_DISABLE_MASK = 196 StatusBarManager.DISABLE_EXPAND | 197 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 198 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 199 StatusBarManager.DISABLE_SEARCH; 200 201 private static final int STATUS_BAR_DISABLE2_MASK = 202 StatusBarManager.DISABLE2_QUICK_SETTINGS; 203 204 private static final Set<String> DEVICE_OWNER_USER_RESTRICTIONS; 205 static { 206 DEVICE_OWNER_USER_RESTRICTIONS = new ArraySet<>(); 207 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_USB_FILE_TRANSFER); 208 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_TETHERING); 209 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_NETWORK_RESET); 210 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_FACTORY_RESET); 211 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADD_USER); 212 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_CELL_BROADCASTS); 213 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS); 214 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_MOUNT_PHYSICAL_MEDIA); 215 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SMS); 216 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_FUN); 217 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SAFE_BOOT); 218 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CREATE_WINDOWS); 219 } 220 221 // The following user restrictions cannot be changed by any active admin, including device 222 // owner and profile owner. 223 private static final Set<String> IMMUTABLE_USER_RESTRICTIONS; 224 static { 225 IMMUTABLE_USER_RESTRICTIONS = new ArraySet<>(); 226 IMMUTABLE_USER_RESTRICTIONS.add(UserManager.DISALLOW_WALLPAPER); 227 } 228 229 private static final Set<String> SECURE_SETTINGS_WHITELIST; 230 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 231 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 232 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 233 static { 234 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 235 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 236 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 237 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 238 239 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 240 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 241 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 242 243 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 244 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 245 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 246 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 247 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 248 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 249 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 250 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 251 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 252 253 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 254 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 255 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 256 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 257 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 258 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 259 } 260 261 // Keyguard features that when set of a profile will affect the profiles 262 // parent user. 263 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 264 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 265 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 266 267 // Keyguard features that are allowed to be set on a managed profile 268 private static final int PROFILE_KEYGUARD_FEATURES = 269 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER 270 | DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 271 272 final Context mContext; 273 final Injector mInjector; 274 final IPackageManager mIPackageManager; 275 final UserManager mUserManager; 276 final UserManagerInternal mUserManagerInternal; 277 278 final LocalService mLocalService; 279 280 // Stores and loads state on device and profile owners. 281 @VisibleForTesting 282 final Owners mOwners; 283 284 private final Binder mToken = new Binder(); 285 286 /** 287 * Whether or not device admin feature is supported. If it isn't return defaults for all 288 * public methods. 289 */ 290 private boolean mHasFeature; 291 292 public static final class Lifecycle extends SystemService { 293 private DevicePolicyManagerService mService; 294 295 public Lifecycle(Context context) { 296 super(context); 297 mService = new DevicePolicyManagerService(context); 298 } 299 300 @Override 301 public void onStart() { 302 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 303 } 304 305 @Override 306 public void onBootPhase(int phase) { 307 mService.systemReady(phase); 308 } 309 } 310 311 public static class DevicePolicyData { 312 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 313 int mActivePasswordLength = 0; 314 int mActivePasswordUpperCase = 0; 315 int mActivePasswordLowerCase = 0; 316 int mActivePasswordLetters = 0; 317 int mActivePasswordNumeric = 0; 318 int mActivePasswordSymbols = 0; 319 int mActivePasswordNonLetter = 0; 320 int mFailedPasswordAttempts = 0; 321 322 int mUserHandle; 323 int mPasswordOwner = -1; 324 long mLastMaximumTimeToLock = -1; 325 boolean mUserSetupComplete = false; 326 int mPermissionPolicy; 327 328 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 329 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 330 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 331 332 // This is the list of component allowed to start lock task mode. 333 List<String> mLockTaskPackages = new ArrayList<>(); 334 335 boolean mStatusBarDisabled = false; 336 337 ComponentName mRestrictionsProvider; 338 339 String mDelegatedCertInstallerPackage; 340 341 boolean doNotAskCredentialsOnBoot = false; 342 343 public DevicePolicyData(int userHandle) { 344 mUserHandle = userHandle; 345 } 346 } 347 348 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 349 350 final Handler mHandler; 351 352 BroadcastReceiver mReceiver = new BroadcastReceiver() { 353 @Override 354 public void onReceive(Context context, Intent intent) { 355 final String action = intent.getAction(); 356 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 357 getSendingUserId()); 358 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 359 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 360 if (VERBOSE_LOG) { 361 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 362 + action + " for user " + userHandle); 363 } 364 mHandler.post(new Runnable() { 365 @Override 366 public void run() { 367 handlePasswordExpirationNotification(userHandle); 368 } 369 }); 370 } 371 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 372 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 373 new MonitoringCertNotificationTask().execute(intent); 374 } 375 if (Intent.ACTION_USER_REMOVED.equals(action)) { 376 removeUserData(userHandle); 377 } else if (Intent.ACTION_USER_STARTED.equals(action) 378 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 379 380 if (Intent.ACTION_USER_STARTED.equals(action)) { 381 // Reset the policy data 382 synchronized (DevicePolicyManagerService.this) { 383 mUserData.remove(userHandle); 384 } 385 } 386 handlePackagesChanged(null /* check all admins */, userHandle); 387 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 388 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 389 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 390 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 391 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 392 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 393 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 394 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 395 clearWipeProfileNotification(); 396 } 397 } 398 }; 399 400 static class ActiveAdmin { 401 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 402 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 403 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 404 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 405 = "disable-bt-contacts-sharing"; 406 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 407 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 408 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 409 private static final String TAG_ACCOUNT_TYPE = "account-type"; 410 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 411 = "permitted-accessiblity-services"; 412 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 413 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 414 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 415 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 416 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 417 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 418 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 419 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 420 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 421 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 422 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 423 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 424 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 425 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 426 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 427 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 428 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 429 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 430 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 431 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 432 private static final String ATTR_VALUE = "value"; 433 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 434 private static final String TAG_POLICIES = "policies"; 435 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 436 "cross-profile-widget-providers"; 437 private static final String TAG_PROVIDER = "provider"; 438 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 439 440 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 441 442 final DeviceAdminInfo info; 443 444 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 445 446 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 447 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 448 449 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 450 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 451 452 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 453 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 454 455 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 456 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 457 458 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 459 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 460 461 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 462 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 463 464 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 465 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 466 467 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 468 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 469 470 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 471 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 472 473 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 474 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 475 476 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 477 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 478 479 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 480 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 481 482 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 483 484 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 485 486 boolean encryptionRequested = false; 487 boolean disableCamera = false; 488 boolean disableCallerId = false; 489 boolean disableBluetoothContactSharing = true; 490 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 491 boolean requireAutoTime = false; // Can only be set by a device owner. 492 493 static class TrustAgentInfo { 494 public PersistableBundle options; 495 TrustAgentInfo(PersistableBundle bundle) { 496 options = bundle; 497 } 498 } 499 500 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 501 502 // The list of permitted accessibility services package namesas set by a profile 503 // or device owner. Null means all accessibility services are allowed, empty means 504 // none except system services are allowed. 505 List<String> permittedAccessiblityServices; 506 507 // The list of permitted input methods package names as set by a profile or device owner. 508 // Null means all input methods are allowed, empty means none except system imes are 509 // allowed. 510 List<String> permittedInputMethods; 511 512 // TODO: review implementation decisions with frameworks team 513 boolean specifiesGlobalProxy = false; 514 String globalProxySpec = null; 515 String globalProxyExclusionList = null; 516 517 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 518 519 List<String> crossProfileWidgetProviders; 520 521 Bundle userRestrictions; 522 523 ActiveAdmin(DeviceAdminInfo _info) { 524 info = _info; 525 } 526 527 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 528 529 public UserHandle getUserHandle() { 530 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 531 } 532 533 void writeToXml(XmlSerializer out) 534 throws IllegalArgumentException, IllegalStateException, IOException { 535 out.startTag(null, TAG_POLICIES); 536 info.writePoliciesToXml(out); 537 out.endTag(null, TAG_POLICIES); 538 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 539 out.startTag(null, TAG_PASSWORD_QUALITY); 540 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 541 out.endTag(null, TAG_PASSWORD_QUALITY); 542 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 543 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 544 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 545 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 546 } 547 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 548 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 549 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 550 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 551 } 552 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 553 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 554 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 555 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 556 } 557 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 558 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 559 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 560 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 561 } 562 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 563 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 564 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 565 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 566 } 567 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 568 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 569 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 570 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 571 } 572 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 573 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 574 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 575 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 576 } 577 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 578 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 579 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 580 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 581 } 582 } 583 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 584 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 585 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 586 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 587 } 588 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 589 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 590 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 591 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 592 } 593 if (specifiesGlobalProxy) { 594 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 595 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 596 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 597 if (globalProxySpec != null) { 598 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 599 out.attribute(null, ATTR_VALUE, globalProxySpec); 600 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 601 } 602 if (globalProxyExclusionList != null) { 603 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 604 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 605 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 606 } 607 } 608 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 609 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 610 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 611 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 612 } 613 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 614 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 615 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 616 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 617 } 618 if (encryptionRequested) { 619 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 620 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 621 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 622 } 623 if (disableCamera) { 624 out.startTag(null, TAG_DISABLE_CAMERA); 625 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 626 out.endTag(null, TAG_DISABLE_CAMERA); 627 } 628 if (disableCallerId) { 629 out.startTag(null, TAG_DISABLE_CALLER_ID); 630 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 631 out.endTag(null, TAG_DISABLE_CALLER_ID); 632 } 633 if (disableBluetoothContactSharing) { 634 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 635 out.attribute(null, ATTR_VALUE, 636 Boolean.toString(disableBluetoothContactSharing)); 637 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 638 } 639 if (disableScreenCapture) { 640 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 641 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 642 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 643 } 644 if (requireAutoTime) { 645 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 646 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 647 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 648 } 649 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 650 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 651 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 652 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 653 } 654 if (!accountTypesWithManagementDisabled.isEmpty()) { 655 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 656 for (String ac : accountTypesWithManagementDisabled) { 657 out.startTag(null, TAG_ACCOUNT_TYPE); 658 out.attribute(null, ATTR_VALUE, ac); 659 out.endTag(null, TAG_ACCOUNT_TYPE); 660 } 661 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 662 } 663 if (!trustAgentInfos.isEmpty()) { 664 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 665 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 666 for (Entry<String, TrustAgentInfo> entry : set) { 667 TrustAgentInfo trustAgentInfo = entry.getValue(); 668 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 669 out.attribute(null, ATTR_VALUE, entry.getKey()); 670 if (trustAgentInfo.options != null) { 671 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 672 try { 673 trustAgentInfo.options.saveToXml(out); 674 } catch (XmlPullParserException e) { 675 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 676 } 677 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 678 } 679 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 680 } 681 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 682 } 683 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 684 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 685 final int providerCount = crossProfileWidgetProviders.size(); 686 for (int i = 0; i < providerCount; i++) { 687 String provider = crossProfileWidgetProviders.get(i); 688 out.startTag(null, TAG_PROVIDER); 689 out.attribute(null, ATTR_VALUE, provider); 690 out.endTag(null, TAG_PROVIDER); 691 } 692 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 693 } 694 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 695 permittedAccessiblityServices); 696 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 697 if (hasUserRestrictions()) { 698 UserRestrictionsUtils.writeRestrictions( 699 out, userRestrictions, TAG_USER_RESTRICTIONS); 700 } 701 } 702 703 void writePackageListToXml(XmlSerializer out, String outerTag, 704 List<String> packageList) 705 throws IllegalArgumentException, IllegalStateException, IOException { 706 if (packageList == null) { 707 return; 708 } 709 710 out.startTag(null, outerTag); 711 for (String packageName : packageList) { 712 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 713 out.attribute(null, ATTR_VALUE, packageName); 714 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 715 } 716 out.endTag(null, outerTag); 717 } 718 719 void readFromXml(XmlPullParser parser) 720 throws XmlPullParserException, IOException { 721 int outerDepth = parser.getDepth(); 722 int type; 723 while ((type=parser.next()) != END_DOCUMENT 724 && (type != END_TAG || parser.getDepth() > outerDepth)) { 725 if (type == END_TAG || type == TEXT) { 726 continue; 727 } 728 String tag = parser.getName(); 729 if (TAG_POLICIES.equals(tag)) { 730 info.readPoliciesFromXml(parser); 731 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 732 passwordQuality = Integer.parseInt( 733 parser.getAttributeValue(null, ATTR_VALUE)); 734 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 735 minimumPasswordLength = Integer.parseInt( 736 parser.getAttributeValue(null, ATTR_VALUE)); 737 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 738 passwordHistoryLength = Integer.parseInt( 739 parser.getAttributeValue(null, ATTR_VALUE)); 740 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 741 minimumPasswordUpperCase = Integer.parseInt( 742 parser.getAttributeValue(null, ATTR_VALUE)); 743 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 744 minimumPasswordLowerCase = Integer.parseInt( 745 parser.getAttributeValue(null, ATTR_VALUE)); 746 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 747 minimumPasswordLetters = Integer.parseInt( 748 parser.getAttributeValue(null, ATTR_VALUE)); 749 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 750 minimumPasswordNumeric = Integer.parseInt( 751 parser.getAttributeValue(null, ATTR_VALUE)); 752 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 753 minimumPasswordSymbols = Integer.parseInt( 754 parser.getAttributeValue(null, ATTR_VALUE)); 755 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 756 minimumPasswordNonLetter = Integer.parseInt( 757 parser.getAttributeValue(null, ATTR_VALUE)); 758 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 759 maximumTimeToUnlock = Long.parseLong( 760 parser.getAttributeValue(null, ATTR_VALUE)); 761 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 762 maximumFailedPasswordsForWipe = Integer.parseInt( 763 parser.getAttributeValue(null, ATTR_VALUE)); 764 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 765 specifiesGlobalProxy = Boolean.parseBoolean( 766 parser.getAttributeValue(null, ATTR_VALUE)); 767 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 768 globalProxySpec = 769 parser.getAttributeValue(null, ATTR_VALUE); 770 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 771 globalProxyExclusionList = 772 parser.getAttributeValue(null, ATTR_VALUE); 773 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 774 passwordExpirationTimeout = Long.parseLong( 775 parser.getAttributeValue(null, ATTR_VALUE)); 776 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 777 passwordExpirationDate = Long.parseLong( 778 parser.getAttributeValue(null, ATTR_VALUE)); 779 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 780 encryptionRequested = Boolean.parseBoolean( 781 parser.getAttributeValue(null, ATTR_VALUE)); 782 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 783 disableCamera = Boolean.parseBoolean( 784 parser.getAttributeValue(null, ATTR_VALUE)); 785 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 786 disableCallerId = Boolean.parseBoolean( 787 parser.getAttributeValue(null, ATTR_VALUE)); 788 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 789 disableBluetoothContactSharing = Boolean.parseBoolean(parser 790 .getAttributeValue(null, ATTR_VALUE)); 791 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 792 disableScreenCapture = Boolean.parseBoolean( 793 parser.getAttributeValue(null, ATTR_VALUE)); 794 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 795 requireAutoTime= Boolean.parseBoolean( 796 parser.getAttributeValue(null, ATTR_VALUE)); 797 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 798 disabledKeyguardFeatures = Integer.parseInt( 799 parser.getAttributeValue(null, ATTR_VALUE)); 800 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 801 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 802 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 803 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 804 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 805 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 806 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 807 permittedAccessiblityServices = readPackageList(parser, tag); 808 } else if (TAG_PERMITTED_IMES.equals(tag)) { 809 permittedInputMethods = readPackageList(parser, tag); 810 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 811 UserRestrictionsUtils.readRestrictions(parser, ensureUserRestrictions()); 812 } else { 813 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 814 XmlUtils.skipCurrentTag(parser); 815 } 816 } 817 } 818 819 private List<String> readPackageList(XmlPullParser parser, 820 String tag) throws XmlPullParserException, IOException { 821 List<String> result = new ArrayList<String>(); 822 int outerDepth = parser.getDepth(); 823 int outerType; 824 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 825 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 826 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 827 continue; 828 } 829 String outerTag = parser.getName(); 830 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 831 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 832 if (packageName != null) { 833 result.add(packageName); 834 } else { 835 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 836 } 837 } else { 838 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 839 } 840 } 841 return result; 842 } 843 844 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 845 throws XmlPullParserException, IOException { 846 int outerDepthDAM = parser.getDepth(); 847 int typeDAM; 848 Set<String> result = new ArraySet<>(); 849 while ((typeDAM=parser.next()) != END_DOCUMENT 850 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 851 if (typeDAM == END_TAG || typeDAM == TEXT) { 852 continue; 853 } 854 String tagDAM = parser.getName(); 855 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 856 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 857 } else { 858 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 859 } 860 } 861 return result; 862 } 863 864 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 865 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 866 int outerDepthDAM = parser.getDepth(); 867 int typeDAM; 868 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 869 while ((typeDAM=parser.next()) != END_DOCUMENT 870 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 871 if (typeDAM == END_TAG || typeDAM == TEXT) { 872 continue; 873 } 874 String tagDAM = parser.getName(); 875 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 876 final String component = parser.getAttributeValue(null, ATTR_VALUE); 877 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 878 result.put(component, trustAgentInfo); 879 } else { 880 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 881 } 882 } 883 return result; 884 } 885 886 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 887 throws XmlPullParserException, IOException { 888 int outerDepthDAM = parser.getDepth(); 889 int typeDAM; 890 TrustAgentInfo result = new TrustAgentInfo(null); 891 while ((typeDAM=parser.next()) != END_DOCUMENT 892 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 893 if (typeDAM == END_TAG || typeDAM == TEXT) { 894 continue; 895 } 896 String tagDAM = parser.getName(); 897 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 898 PersistableBundle bundle = new PersistableBundle(); 899 bundle.restoreFromXml(parser); 900 result.options = bundle; 901 } else { 902 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 903 } 904 } 905 return result; 906 } 907 908 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 909 throws XmlPullParserException, IOException { 910 int outerDepthDAM = parser.getDepth(); 911 int typeDAM; 912 ArrayList<String> result = null; 913 while ((typeDAM=parser.next()) != END_DOCUMENT 914 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 915 if (typeDAM == END_TAG || typeDAM == TEXT) { 916 continue; 917 } 918 String tagDAM = parser.getName(); 919 if (TAG_PROVIDER.equals(tagDAM)) { 920 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 921 if (result == null) { 922 result = new ArrayList<>(); 923 } 924 result.add(provider); 925 } else { 926 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 927 } 928 } 929 return result; 930 } 931 932 boolean hasUserRestrictions() { 933 return userRestrictions != null && userRestrictions.size() > 0; 934 } 935 936 Bundle ensureUserRestrictions() { 937 if (userRestrictions == null) { 938 userRestrictions = new Bundle(); 939 } 940 return userRestrictions; 941 } 942 943 void dump(String prefix, PrintWriter pw) { 944 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 945 pw.print(prefix); pw.println("policies:"); 946 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 947 if (pols != null) { 948 for (int i=0; i<pols.size(); i++) { 949 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 950 } 951 } 952 pw.print(prefix); pw.print("passwordQuality=0x"); 953 pw.println(Integer.toHexString(passwordQuality)); 954 pw.print(prefix); pw.print("minimumPasswordLength="); 955 pw.println(minimumPasswordLength); 956 pw.print(prefix); pw.print("passwordHistoryLength="); 957 pw.println(passwordHistoryLength); 958 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 959 pw.println(minimumPasswordUpperCase); 960 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 961 pw.println(minimumPasswordLowerCase); 962 pw.print(prefix); pw.print("minimumPasswordLetters="); 963 pw.println(minimumPasswordLetters); 964 pw.print(prefix); pw.print("minimumPasswordNumeric="); 965 pw.println(minimumPasswordNumeric); 966 pw.print(prefix); pw.print("minimumPasswordSymbols="); 967 pw.println(minimumPasswordSymbols); 968 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 969 pw.println(minimumPasswordNonLetter); 970 pw.print(prefix); pw.print("maximumTimeToUnlock="); 971 pw.println(maximumTimeToUnlock); 972 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 973 pw.println(maximumFailedPasswordsForWipe); 974 pw.print(prefix); pw.print("specifiesGlobalProxy="); 975 pw.println(specifiesGlobalProxy); 976 pw.print(prefix); pw.print("passwordExpirationTimeout="); 977 pw.println(passwordExpirationTimeout); 978 pw.print(prefix); pw.print("passwordExpirationDate="); 979 pw.println(passwordExpirationDate); 980 if (globalProxySpec != null) { 981 pw.print(prefix); pw.print("globalProxySpec="); 982 pw.println(globalProxySpec); 983 } 984 if (globalProxyExclusionList != null) { 985 pw.print(prefix); pw.print("globalProxyEclusionList="); 986 pw.println(globalProxyExclusionList); 987 } 988 pw.print(prefix); pw.print("encryptionRequested="); 989 pw.println(encryptionRequested); 990 pw.print(prefix); pw.print("disableCamera="); 991 pw.println(disableCamera); 992 pw.print(prefix); pw.print("disableCallerId="); 993 pw.println(disableCallerId); 994 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 995 pw.println(disableBluetoothContactSharing); 996 pw.print(prefix); pw.print("disableScreenCapture="); 997 pw.println(disableScreenCapture); 998 pw.print(prefix); pw.print("requireAutoTime="); 999 pw.println(requireAutoTime); 1000 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1001 pw.println(disabledKeyguardFeatures); 1002 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1003 pw.println(crossProfileWidgetProviders); 1004 if (!(permittedAccessiblityServices == null)) { 1005 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1006 pw.println(permittedAccessiblityServices.toString()); 1007 } 1008 if (!(permittedInputMethods == null)) { 1009 pw.print(prefix); pw.print("permittedInputMethods="); 1010 pw.println(permittedInputMethods.toString()); 1011 } 1012 pw.print(prefix); pw.println("userRestrictions:"); 1013 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1014 } 1015 } 1016 1017 // DO NOT call it while taking the "this" lock, which could cause a dead lock. 1018 private void handlePackagesChanged(String packageName, int userHandle) { 1019 boolean removed = false; 1020 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1021 DevicePolicyData policy = getUserData(userHandle); 1022 synchronized (this) { 1023 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1024 ActiveAdmin aa = policy.mAdminList.get(i); 1025 try { 1026 // If we're checking all packages or if the specific one we're checking matches, 1027 // then check if the package and receiver still exist. 1028 final String adminPackage = aa.info.getPackageName(); 1029 if (packageName == null || packageName.equals(adminPackage)) { 1030 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1031 || mIPackageManager.getReceiverInfo( 1032 aa.info.getComponent(), 0, userHandle) == null) { 1033 removed = true; 1034 policy.mAdminList.remove(i); 1035 policy.mAdminMap.remove(aa.info.getComponent()); 1036 } 1037 } 1038 } catch (RemoteException re) { 1039 // Shouldn't happen 1040 } 1041 } 1042 if (removed) { 1043 validatePasswordOwnerLocked(policy); 1044 saveSettingsLocked(policy.mUserHandle); 1045 } 1046 1047 if (policy.mDelegatedCertInstallerPackage != null && 1048 (packageName == null 1049 || packageName.equals(policy.mDelegatedCertInstallerPackage))) { 1050 try { 1051 // Check if delegated cert installer package is removed. 1052 if (mIPackageManager.getPackageInfo( 1053 policy.mDelegatedCertInstallerPackage, 0, userHandle) == null) { 1054 policy.mDelegatedCertInstallerPackage = null; 1055 saveSettingsLocked(policy.mUserHandle); 1056 } 1057 } catch (RemoteException e) { 1058 // Shouldn't happen 1059 } 1060 } 1061 } 1062 if (removed) { 1063 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 1064 synchronized (DevicePolicyManagerService.this) { 1065 mUserManagerInternal.updateEffectiveUserRestrictionsLR(userHandle); 1066 } 1067 } 1068 } 1069 } 1070 1071 /** 1072 * Unit test will subclass it to inject mocks. 1073 */ 1074 @VisibleForTesting 1075 static class Injector { 1076 1077 private final Context mContext; 1078 1079 Injector(Context context) { 1080 mContext = context; 1081 } 1082 1083 Owners newOwners() { 1084 return new Owners(mContext); 1085 } 1086 1087 UserManager getUserManager() { 1088 return UserManager.get(mContext); 1089 } 1090 1091 UserManagerInternal getUserManagerInternal() { 1092 return LocalServices.getService(UserManagerInternal.class); 1093 } 1094 1095 NotificationManager getNotificationManager() { 1096 return mContext.getSystemService(NotificationManager.class); 1097 } 1098 1099 PowerManagerInternal getPowerManagerInternal() { 1100 return LocalServices.getService(PowerManagerInternal.class); 1101 } 1102 1103 IWindowManager getIWindowManager() { 1104 return IWindowManager.Stub 1105 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1106 } 1107 1108 IActivityManager getIActivityManager() { 1109 return ActivityManagerNative.getDefault(); 1110 } 1111 1112 IPackageManager getIPackageManager() { 1113 return AppGlobals.getPackageManager(); 1114 } 1115 1116 IBackupManager getIBackupManager() { 1117 return IBackupManager.Stub.asInterface( 1118 ServiceManager.getService(Context.BACKUP_SERVICE)); 1119 } 1120 1121 IAudioService getIAudioService() { 1122 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1123 } 1124 1125 LockPatternUtils newLockPatternUtils() { 1126 return new LockPatternUtils(mContext); 1127 } 1128 1129 Looper getMyLooper() { 1130 return Looper.myLooper(); 1131 } 1132 1133 long binderClearCallingIdentity() { 1134 return Binder.clearCallingIdentity(); 1135 } 1136 1137 void binderRestoreCallingIdentity(long token) { 1138 Binder.restoreCallingIdentity(token); 1139 } 1140 1141 int binderGetCallingUid() { 1142 return Binder.getCallingUid(); 1143 } 1144 1145 int binderGetCallingPid() { 1146 return Binder.getCallingPid(); 1147 } 1148 1149 UserHandle binderGetCallingUserHandle() { 1150 return Binder.getCallingUserHandle(); 1151 } 1152 1153 boolean binderIsCallingUidMyUid() { 1154 return getCallingUid() == Process.myUid(); 1155 } 1156 1157 final int userHandleGetCallingUserId() { 1158 return UserHandle.getUserId(binderGetCallingUid()); 1159 } 1160 1161 File environmentGetUserSystemDirectory(int userId) { 1162 return Environment.getUserSystemDirectory(userId); 1163 } 1164 1165 void powerManagerGoToSleep(long time, int reason, int flags) { 1166 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1167 } 1168 1169 boolean systemPropertiesGetBoolean(String key, boolean def) { 1170 return SystemProperties.getBoolean(key, def); 1171 } 1172 1173 long systemPropertiesGetLong(String key, long def) { 1174 return SystemProperties.getLong(key, def); 1175 } 1176 1177 String systemPropertiesGet(String key, String def) { 1178 return SystemProperties.get(key, def); 1179 } 1180 1181 String systemPropertiesGet(String key) { 1182 return SystemProperties.get(key); 1183 } 1184 1185 void systemPropertiesSet(String key, String value) { 1186 SystemProperties.set(key, value); 1187 } 1188 1189 boolean userManagerIsSplitSystemUser() { 1190 return UserManager.isSplitSystemUser(); 1191 } 1192 1193 String getDevicePolicyFilePathForSystemUser() { 1194 return "/data/system/"; 1195 } 1196 1197 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1198 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1199 name, def, userHandle); 1200 } 1201 1202 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1203 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1204 name, value, userHandle); 1205 } 1206 1207 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1208 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1209 name, value, userHandle); 1210 } 1211 1212 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1213 Settings.Global.putStringForUser(mContext.getContentResolver(), 1214 name, value, userHandle); 1215 } 1216 1217 void settingsSecurePutInt(String name, int value) { 1218 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1219 } 1220 1221 int settingsGlobalGetInt(String name, int def) { 1222 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1223 } 1224 1225 void settingsGlobalPutInt(String name, int value) { 1226 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1227 } 1228 1229 void settingsSecurePutString(String name, String value) { 1230 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1231 } 1232 1233 void settingsGlobalPutString(String name, String value) { 1234 Settings.Global.putString(mContext.getContentResolver(), name, value); 1235 } 1236 } 1237 1238 /** 1239 * Instantiates the service. 1240 */ 1241 public DevicePolicyManagerService(Context context) { 1242 this(new Injector(context)); 1243 } 1244 1245 @VisibleForTesting 1246 DevicePolicyManagerService(Injector injector) { 1247 mInjector = injector; 1248 mContext = Preconditions.checkNotNull(injector.mContext); 1249 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1250 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1251 1252 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1253 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1254 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1255 1256 mLocalService = new LocalService(); 1257 1258 mHasFeature = mContext.getPackageManager() 1259 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1260 if (!mHasFeature) { 1261 // Skip the rest of the initialization 1262 return; 1263 } 1264 IntentFilter filter = new IntentFilter(); 1265 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1266 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1267 filter.addAction(Intent.ACTION_USER_REMOVED); 1268 filter.addAction(Intent.ACTION_USER_STARTED); 1269 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1270 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1271 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1272 filter = new IntentFilter(); 1273 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1274 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1275 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1276 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1277 filter.addDataScheme("package"); 1278 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1279 filter = new IntentFilter(); 1280 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1281 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1282 1283 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1284 } 1285 1286 /** 1287 * Creates and loads the policy data from xml. 1288 * @param userHandle the user for whom to load the policy data 1289 * @return 1290 */ 1291 @NonNull 1292 DevicePolicyData getUserData(int userHandle) { 1293 synchronized (this) { 1294 DevicePolicyData policy = mUserData.get(userHandle); 1295 if (policy == null) { 1296 policy = new DevicePolicyData(userHandle); 1297 mUserData.append(userHandle, policy); 1298 loadSettingsLocked(policy, userHandle); 1299 } 1300 return policy; 1301 } 1302 } 1303 1304 /** 1305 * Creates and loads the policy data from xml for data that is shared between 1306 * various profiles of a user. In contrast to {@link #getUserData(int)} 1307 * it allows access to data of users other than the calling user. 1308 * 1309 * This function should only be used for shared data, e.g. everything regarding 1310 * passwords and should be removed once multiple screen locks are present. 1311 * @param userHandle the user for whom to load the policy data 1312 * @return 1313 */ 1314 DevicePolicyData getUserDataUnchecked(int userHandle) { 1315 long ident = mInjector.binderClearCallingIdentity(); 1316 try { 1317 return getUserData(userHandle); 1318 } finally { 1319 mInjector.binderRestoreCallingIdentity(ident); 1320 } 1321 } 1322 1323 void removeUserData(int userHandle) { 1324 synchronized (this) { 1325 if (userHandle == UserHandle.USER_SYSTEM) { 1326 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1327 return; 1328 } 1329 mOwners.removeProfileOwner(userHandle); 1330 mOwners.writeProfileOwner(userHandle); 1331 1332 DevicePolicyData policy = mUserData.get(userHandle); 1333 if (policy != null) { 1334 mUserData.remove(userHandle); 1335 } 1336 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1337 DEVICE_POLICIES_XML); 1338 policyFile.delete(); 1339 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1340 } 1341 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1342 } 1343 1344 void loadOwners() { 1345 synchronized (this) { 1346 mOwners.load(); 1347 findOwnerComponentIfNecessaryLocked(); 1348 migrateUserRestrictionsIfNecessaryLocked(); 1349 1350 // TODO PO may not have a class name either due to b/17652534. Address that too. 1351 1352 updateDeviceOwnerLocked(); 1353 1354 // TODO Notify UM to update restrictions (?) 1355 } 1356 } 1357 1358 private void findOwnerComponentIfNecessaryLocked() { 1359 if (!mOwners.hasDeviceOwner()) { 1360 return; 1361 } 1362 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1363 1364 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1365 return; // Already a full component name. 1366 } 1367 1368 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1369 doComponentName.getPackageName(), 1370 mOwners.getDeviceOwnerUserId()); 1371 if (doComponent == null) { 1372 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1373 } else { 1374 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1375 doComponent, 1376 mOwners.getDeviceOwnerName(), 1377 mOwners.getDeviceOwnerUserId(), 1378 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1379 mOwners.writeDeviceOwner(); 1380 if (VERBOSE_LOG) { 1381 Log.v(LOG_TAG, "Device owner component filled in"); 1382 } 1383 } 1384 } 1385 1386 /** 1387 * We didn't use to persist user restrictions for each owners but only persisted in user 1388 * manager. 1389 */ 1390 private void migrateUserRestrictionsIfNecessaryLocked() { 1391 boolean migrated = false; 1392 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1393 // except for the "system controlled" ones. 1394 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1395 if (VERBOSE_LOG) { 1396 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1397 } 1398 migrated = true; 1399 1400 // Migrate user 0 restrictions to DO, except for "system" restrictions. 1401 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1402 1403 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1404 /* exceptionList =*/ UserRestrictionsUtils.SYSTEM_CONTROLLED_USER_RESTRICTIONS); 1405 1406 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1407 } 1408 1409 // Migrate for POs. We have a few more exceptions. 1410 final Set<String> normalExceptionList = Sets.newArraySet( 1411 UserManager.DISALLOW_OUTGOING_CALLS, 1412 UserManager.DISALLOW_SMS); 1413 normalExceptionList.addAll(UserRestrictionsUtils.SYSTEM_CONTROLLED_USER_RESTRICTIONS); 1414 1415 final Set<String> managedExceptionList = new ArraySet<>(normalExceptionList.size() + 1); 1416 managedExceptionList.addAll(normalExceptionList); 1417 managedExceptionList.add(UserManager.DISALLOW_WALLPAPER); 1418 1419 for (UserInfo ui : mUserManager.getUsers()) { 1420 final int userId = ui.id; 1421 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1422 if (userId != UserHandle.USER_SYSTEM) { 1423 if (VERBOSE_LOG) { 1424 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1425 } 1426 migrated = true; 1427 1428 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1429 1430 final Set<String> exceptionList = 1431 ui.isManagedProfile() ? managedExceptionList : normalExceptionList; 1432 1433 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1434 exceptionList); 1435 } 1436 1437 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1438 } 1439 } 1440 if (VERBOSE_LOG && migrated) { 1441 Log.v(LOG_TAG, "User restrictions migrated."); 1442 } 1443 } 1444 1445 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1446 Set<String> exceptionList) { 1447 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1448 user.getIdentifier()); 1449 1450 final Bundle newSystemRestrictions = new Bundle(); 1451 final Bundle newOwnerRestrictions = new Bundle(); 1452 1453 for (String key : origRestrictions.keySet()) { 1454 if (!origRestrictions.getBoolean(key)) { 1455 continue; 1456 } 1457 if (exceptionList.contains(key)) { 1458 newSystemRestrictions.putBoolean(key, true); 1459 } else { 1460 newOwnerRestrictions.putBoolean(key, true); 1461 } 1462 } 1463 1464 if (VERBOSE_LOG) { 1465 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1466 Log.v(LOG_TAG, "newSystemRestrictions=" + newSystemRestrictions); 1467 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1468 } 1469 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1470 newSystemRestrictions); 1471 1472 if (admin != null) { 1473 admin.ensureUserRestrictions().clear(); 1474 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1475 } else { 1476 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1477 } 1478 saveSettingsLocked(user.getIdentifier()); 1479 } 1480 1481 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1482 final DevicePolicyData policy = getUserData(userId); 1483 final int n = policy.mAdminList.size(); 1484 ComponentName found = null; 1485 int nFound = 0; 1486 for (int i = 0; i < n; i++) { 1487 final ActiveAdmin admin = policy.mAdminList.get(i); 1488 if (packageName.equals(admin.info.getPackageName())) { 1489 // Found! 1490 if (nFound == 0) { 1491 found = admin.info.getComponent(); 1492 } 1493 nFound++; 1494 } 1495 } 1496 if (nFound > 1) { 1497 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1498 } 1499 return found; 1500 } 1501 1502 /** 1503 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1504 * reminders. Clears alarm if no expirations are configured. 1505 */ 1506 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1507 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1508 final long now = System.currentTimeMillis(); 1509 final long timeToExpire = expiration - now; 1510 final long alarmTime; 1511 if (expiration == 0) { 1512 // No expirations are currently configured: Cancel alarm. 1513 alarmTime = 0; 1514 } else if (timeToExpire <= 0) { 1515 // The password has already expired: Repeat every 24 hours. 1516 alarmTime = now + MS_PER_DAY; 1517 } else { 1518 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1519 // the expiration time. 1520 long alarmInterval = timeToExpire % MS_PER_DAY; 1521 if (alarmInterval == 0) { 1522 alarmInterval = MS_PER_DAY; 1523 } 1524 alarmTime = now + alarmInterval; 1525 } 1526 1527 long token = mInjector.binderClearCallingIdentity(); 1528 try { 1529 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1530 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1531 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1532 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1533 new UserHandle(policy.mUserHandle)); 1534 am.cancel(pi); 1535 if (alarmTime != 0) { 1536 am.set(AlarmManager.RTC, alarmTime, pi); 1537 } 1538 } finally { 1539 mInjector.binderRestoreCallingIdentity(token); 1540 } 1541 } 1542 1543 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1544 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1545 if (admin != null 1546 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1547 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1548 return admin; 1549 } 1550 return null; 1551 } 1552 1553 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1554 throws SecurityException { 1555 final int callingUid = mInjector.binderGetCallingUid(); 1556 1557 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1558 if (result != null) { 1559 return result; 1560 } 1561 1562 if (who != null) { 1563 final int userId = UserHandle.getUserId(callingUid); 1564 final DevicePolicyData policy = getUserData(userId); 1565 ActiveAdmin admin = policy.mAdminMap.get(who); 1566 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1567 throw new SecurityException("Admin " + admin.info.getComponent() 1568 + " does not own the device"); 1569 } 1570 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1571 throw new SecurityException("Admin " + admin.info.getComponent() 1572 + " does not own the profile"); 1573 } 1574 throw new SecurityException("Admin " + admin.info.getComponent() 1575 + " did not specify uses-policy for: " 1576 + admin.info.getTagForPolicy(reqPolicy)); 1577 } else { 1578 throw new SecurityException("No active admin owned by uid " 1579 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 1580 } 1581 } 1582 1583 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1584 int uid) { 1585 // Try to find an admin which can use reqPolicy 1586 final int userId = UserHandle.getUserId(uid); 1587 final DevicePolicyData policy = getUserData(userId); 1588 if (who != null) { 1589 ActiveAdmin admin = policy.mAdminMap.get(who); 1590 if (admin == null) { 1591 throw new SecurityException("No active admin " + who); 1592 } 1593 if (admin.getUid() != uid) { 1594 throw new SecurityException("Admin " + who + " is not owned by uid " 1595 + mInjector.binderGetCallingUid()); 1596 } 1597 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 1598 return admin; 1599 } 1600 } else { 1601 for (ActiveAdmin admin : policy.mAdminList) { 1602 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 1603 userId)) { 1604 return admin; 1605 } 1606 } 1607 } 1608 1609 return null; 1610 } 1611 1612 @VisibleForTesting 1613 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 1614 int userId) { 1615 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 1616 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 1617 1618 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1619 return ownsDevice; 1620 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1621 // DO always has the PO power. 1622 return ownsDevice || ownsProfile; 1623 } else { 1624 return admin.info.usesPolicy(reqPolicy); 1625 } 1626 } 1627 1628 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1629 sendAdminCommandLocked(admin, action, null); 1630 } 1631 1632 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1633 sendAdminCommandLocked(admin, action, null, result); 1634 } 1635 1636 /** 1637 * Send an update to one specific admin, get notified when that admin returns a result. 1638 */ 1639 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1640 BroadcastReceiver result) { 1641 Intent intent = new Intent(action); 1642 intent.setComponent(admin.info.getComponent()); 1643 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1644 intent.putExtra("expiration", admin.passwordExpirationDate); 1645 } 1646 if (adminExtras != null) { 1647 intent.putExtras(adminExtras); 1648 } 1649 if (result != null) { 1650 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1651 null, result, mHandler, Activity.RESULT_OK, null, null); 1652 } else { 1653 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1654 } 1655 } 1656 1657 /** 1658 * Send an update to all admins of a user that enforce a specified policy. 1659 */ 1660 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1661 final DevicePolicyData policy = getUserData(userHandle); 1662 final int count = policy.mAdminList.size(); 1663 if (count > 0) { 1664 for (int i = 0; i < count; i++) { 1665 final ActiveAdmin admin = policy.mAdminList.get(i); 1666 if (admin.info.usesPolicy(reqPolicy)) { 1667 sendAdminCommandLocked(admin, action); 1668 } 1669 } 1670 } 1671 } 1672 1673 /** 1674 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1675 * enforce a specified policy. 1676 */ 1677 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1678 int userHandle) { 1679 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1680 for (UserInfo ui : profiles) { 1681 int id = ui.id; 1682 sendAdminCommandLocked(action, reqPolicy, id); 1683 } 1684 } 1685 1686 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 1687 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1688 if (admin != null) { 1689 synchronized (this) { 1690 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 1691 } 1692 sendAdminCommandLocked(admin, 1693 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1694 new BroadcastReceiver() { 1695 @Override 1696 public void onReceive(Context context, Intent intent) { 1697 synchronized (DevicePolicyManagerService.this) { 1698 int userHandle = admin.getUserHandle().getIdentifier(); 1699 DevicePolicyData policy = getUserData(userHandle); 1700 boolean doProxyCleanup = admin.info.usesPolicy( 1701 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1702 policy.mAdminList.remove(admin); 1703 policy.mAdminMap.remove(adminReceiver); 1704 validatePasswordOwnerLocked(policy); 1705 if (doProxyCleanup) { 1706 resetGlobalProxyLocked(getUserData(userHandle)); 1707 } 1708 saveSettingsLocked(userHandle); 1709 updateMaximumTimeToLockLocked(policy); 1710 policy.mRemovingAdmins.remove(adminReceiver); 1711 } 1712 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 1713 synchronized (DevicePolicyManagerService.this) { 1714 mUserManagerInternal.updateEffectiveUserRestrictionsLR( 1715 userHandle); 1716 } 1717 } 1718 } 1719 }); 1720 } 1721 } 1722 1723 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) { 1724 if (!mHasFeature) { 1725 return null; 1726 } 1727 enforceCrossUserPermission(userHandle); 1728 Intent resolveIntent = new Intent(); 1729 resolveIntent.setComponent(adminName); 1730 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1731 resolveIntent, 1732 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1733 userHandle); 1734 if (infos == null || infos.size() <= 0) { 1735 throw new IllegalArgumentException("Unknown admin: " + adminName); 1736 } 1737 1738 try { 1739 return new DeviceAdminInfo(mContext, infos.get(0)); 1740 } catch (XmlPullParserException e) { 1741 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1742 e); 1743 return null; 1744 } catch (IOException e) { 1745 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1746 e); 1747 return null; 1748 } 1749 } 1750 1751 private JournaledFile makeJournaledFile(int userHandle) { 1752 final String base = userHandle == UserHandle.USER_SYSTEM 1753 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 1754 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1755 DEVICE_POLICIES_XML).getAbsolutePath(); 1756 if (VERBOSE_LOG) { 1757 Log.v(LOG_TAG, "Opening " + base); 1758 } 1759 return new JournaledFile(new File(base), new File(base + ".tmp")); 1760 } 1761 1762 private void saveSettingsLocked(int userHandle) { 1763 DevicePolicyData policy = getUserData(userHandle); 1764 JournaledFile journal = makeJournaledFile(userHandle); 1765 FileOutputStream stream = null; 1766 try { 1767 stream = new FileOutputStream(journal.chooseForWrite(), false); 1768 XmlSerializer out = new FastXmlSerializer(); 1769 out.setOutput(stream, StandardCharsets.UTF_8.name()); 1770 out.startDocument(null, true); 1771 1772 out.startTag(null, "policies"); 1773 if (policy.mRestrictionsProvider != null) { 1774 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1775 policy.mRestrictionsProvider.flattenToString()); 1776 } 1777 if (policy.mUserSetupComplete) { 1778 out.attribute(null, ATTR_SETUP_COMPLETE, 1779 Boolean.toString(true)); 1780 } 1781 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 1782 out.attribute(null, ATTR_PERMISSION_POLICY, 1783 Integer.toString(policy.mPermissionPolicy)); 1784 } 1785 if (policy.mDelegatedCertInstallerPackage != null) { 1786 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 1787 policy.mDelegatedCertInstallerPackage); 1788 } 1789 1790 final int N = policy.mAdminList.size(); 1791 for (int i=0; i<N; i++) { 1792 ActiveAdmin ap = policy.mAdminList.get(i); 1793 if (ap != null) { 1794 out.startTag(null, "admin"); 1795 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1796 ap.writeToXml(out); 1797 out.endTag(null, "admin"); 1798 } 1799 } 1800 1801 if (policy.mPasswordOwner >= 0) { 1802 out.startTag(null, "password-owner"); 1803 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1804 out.endTag(null, "password-owner"); 1805 } 1806 1807 if (policy.mFailedPasswordAttempts != 0) { 1808 out.startTag(null, "failed-password-attempts"); 1809 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1810 out.endTag(null, "failed-password-attempts"); 1811 } 1812 1813 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1814 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1815 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1816 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1817 out.startTag(null, "active-password"); 1818 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1819 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1820 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1821 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1822 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1823 out.attribute(null, "numeric", Integer 1824 .toString(policy.mActivePasswordNumeric)); 1825 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1826 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1827 out.endTag(null, "active-password"); 1828 } 1829 1830 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1831 String component = policy.mLockTaskPackages.get(i); 1832 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 1833 out.attribute(null, "name", component); 1834 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 1835 } 1836 1837 if (policy.mStatusBarDisabled) { 1838 out.startTag(null, TAG_STATUS_BAR); 1839 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 1840 out.endTag(null, TAG_STATUS_BAR); 1841 } 1842 1843 if (policy.doNotAskCredentialsOnBoot) { 1844 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1845 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1846 } 1847 1848 out.endTag(null, "policies"); 1849 1850 out.endDocument(); 1851 stream.flush(); 1852 FileUtils.sync(stream); 1853 stream.close(); 1854 journal.commit(); 1855 sendChangedNotification(userHandle); 1856 } catch (IOException e) { 1857 Slog.w(LOG_TAG, "failed writing file", e); 1858 try { 1859 if (stream != null) { 1860 stream.close(); 1861 } 1862 } catch (IOException ex) { 1863 // Ignore 1864 } 1865 journal.rollback(); 1866 } 1867 } 1868 1869 private void sendChangedNotification(int userHandle) { 1870 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1871 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1872 long ident = mInjector.binderClearCallingIdentity(); 1873 try { 1874 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1875 } finally { 1876 mInjector.binderRestoreCallingIdentity(ident); 1877 } 1878 } 1879 1880 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1881 JournaledFile journal = makeJournaledFile(userHandle); 1882 FileInputStream stream = null; 1883 File file = journal.chooseForRead(); 1884 try { 1885 stream = new FileInputStream(file); 1886 XmlPullParser parser = Xml.newPullParser(); 1887 parser.setInput(stream, StandardCharsets.UTF_8.name()); 1888 1889 int type; 1890 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1891 && type != XmlPullParser.START_TAG) { 1892 } 1893 String tag = parser.getName(); 1894 if (!"policies".equals(tag)) { 1895 throw new XmlPullParserException( 1896 "Settings do not start with policies tag: found " + tag); 1897 } 1898 1899 // Extract the permission provider component name if available 1900 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1901 if (permissionProvider != null) { 1902 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1903 } 1904 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1905 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1906 policy.mUserSetupComplete = true; 1907 } 1908 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 1909 if (!TextUtils.isEmpty(permissionPolicy)) { 1910 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 1911 } 1912 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 1913 ATTR_DELEGATED_CERT_INSTALLER); 1914 1915 type = parser.next(); 1916 int outerDepth = parser.getDepth(); 1917 policy.mLockTaskPackages.clear(); 1918 policy.mAdminList.clear(); 1919 policy.mAdminMap.clear(); 1920 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1921 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1922 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1923 continue; 1924 } 1925 tag = parser.getName(); 1926 if ("admin".equals(tag)) { 1927 String name = parser.getAttributeValue(null, "name"); 1928 try { 1929 DeviceAdminInfo dai = findAdmin( 1930 ComponentName.unflattenFromString(name), userHandle); 1931 if (VERBOSE_LOG 1932 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1933 != userHandle)) { 1934 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1935 + dai.getActivityInfo().applicationInfo.uid + " for user " 1936 + userHandle); 1937 } 1938 if (dai != null) { 1939 ActiveAdmin ap = new ActiveAdmin(dai); 1940 ap.readFromXml(parser); 1941 policy.mAdminMap.put(ap.info.getComponent(), ap); 1942 } 1943 } catch (RuntimeException e) { 1944 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1945 } 1946 } else if ("failed-password-attempts".equals(tag)) { 1947 policy.mFailedPasswordAttempts = Integer.parseInt( 1948 parser.getAttributeValue(null, "value")); 1949 } else if ("password-owner".equals(tag)) { 1950 policy.mPasswordOwner = Integer.parseInt( 1951 parser.getAttributeValue(null, "value")); 1952 } else if ("active-password".equals(tag)) { 1953 policy.mActivePasswordQuality = Integer.parseInt( 1954 parser.getAttributeValue(null, "quality")); 1955 policy.mActivePasswordLength = Integer.parseInt( 1956 parser.getAttributeValue(null, "length")); 1957 policy.mActivePasswordUpperCase = Integer.parseInt( 1958 parser.getAttributeValue(null, "uppercase")); 1959 policy.mActivePasswordLowerCase = Integer.parseInt( 1960 parser.getAttributeValue(null, "lowercase")); 1961 policy.mActivePasswordLetters = Integer.parseInt( 1962 parser.getAttributeValue(null, "letters")); 1963 policy.mActivePasswordNumeric = Integer.parseInt( 1964 parser.getAttributeValue(null, "numeric")); 1965 policy.mActivePasswordSymbols = Integer.parseInt( 1966 parser.getAttributeValue(null, "symbols")); 1967 policy.mActivePasswordNonLetter = Integer.parseInt( 1968 parser.getAttributeValue(null, "nonletter")); 1969 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 1970 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 1971 } else if (TAG_STATUS_BAR.equals(tag)) { 1972 policy.mStatusBarDisabled = Boolean.parseBoolean( 1973 parser.getAttributeValue(null, ATTR_DISABLED)); 1974 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 1975 policy.doNotAskCredentialsOnBoot = true; 1976 } else { 1977 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1978 XmlUtils.skipCurrentTag(parser); 1979 } 1980 } 1981 } catch (NullPointerException e) { 1982 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1983 } catch (NumberFormatException e) { 1984 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1985 } catch (XmlPullParserException e) { 1986 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1987 } catch (FileNotFoundException e) { 1988 // Don't be noisy, this is normal if we haven't defined any policies. 1989 } catch (IOException e) { 1990 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1991 } catch (IndexOutOfBoundsException e) { 1992 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1993 } 1994 try { 1995 if (stream != null) { 1996 stream.close(); 1997 } 1998 } catch (IOException e) { 1999 // Ignore 2000 } 2001 2002 // Generate a list of admins from the admin map 2003 policy.mAdminList.addAll(policy.mAdminMap.values()); 2004 2005 // Validate that what we stored for the password quality matches 2006 // sufficiently what is currently set. Note that this is only 2007 // a sanity check in case the two get out of sync; this should 2008 // never normally happen. 2009 final long identity = mInjector.binderClearCallingIdentity(); 2010 try { 2011 LockPatternUtils utils = mInjector.newLockPatternUtils(); 2012 if (utils.getActivePasswordQuality(userHandle) < policy.mActivePasswordQuality) { 2013 Slog.w(LOG_TAG, "Active password quality 0x" 2014 + Integer.toHexString(policy.mActivePasswordQuality) 2015 + " does not match actual quality 0x" 2016 + Integer.toHexString(utils.getActivePasswordQuality(userHandle))); 2017 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2018 policy.mActivePasswordLength = 0; 2019 policy.mActivePasswordUpperCase = 0; 2020 policy.mActivePasswordLowerCase = 0; 2021 policy.mActivePasswordLetters = 0; 2022 policy.mActivePasswordNumeric = 0; 2023 policy.mActivePasswordSymbols = 0; 2024 policy.mActivePasswordNonLetter = 0; 2025 } 2026 } finally { 2027 mInjector.binderRestoreCallingIdentity(identity); 2028 } 2029 2030 validatePasswordOwnerLocked(policy); 2031 updateMaximumTimeToLockLocked(policy); 2032 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2033 if (policy.mStatusBarDisabled) { 2034 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2035 } 2036 } 2037 2038 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2039 long ident = mInjector.binderClearCallingIdentity(); 2040 try { 2041 mInjector.getIActivityManager() 2042 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2043 } catch (RemoteException e) { 2044 // Not gonna happen. 2045 } finally { 2046 mInjector.binderRestoreCallingIdentity(ident); 2047 } 2048 } 2049 2050 private void updateDeviceOwnerLocked() { 2051 long ident = mInjector.binderClearCallingIdentity(); 2052 try { 2053 if (getDeviceOwner() != null) { 2054 mInjector.getIActivityManager() 2055 .updateDeviceOwner(getDeviceOwner().getPackageName()); 2056 } 2057 } catch (RemoteException e) { 2058 // Not gonna happen. 2059 } finally { 2060 mInjector.binderRestoreCallingIdentity(ident); 2061 } 2062 } 2063 2064 static void validateQualityConstant(int quality) { 2065 switch (quality) { 2066 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2067 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2068 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2069 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2070 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2071 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2072 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2073 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2074 return; 2075 } 2076 throw new IllegalArgumentException("Invalid quality constant: 0x" 2077 + Integer.toHexString(quality)); 2078 } 2079 2080 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2081 if (policy.mPasswordOwner >= 0) { 2082 boolean haveOwner = false; 2083 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2084 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2085 haveOwner = true; 2086 break; 2087 } 2088 } 2089 if (!haveOwner) { 2090 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2091 + " no longer active; disabling"); 2092 policy.mPasswordOwner = -1; 2093 } 2094 } 2095 } 2096 2097 @VisibleForTesting 2098 void systemReady(int phase) { 2099 if (!mHasFeature) { 2100 return; 2101 } 2102 switch (phase) { 2103 case SystemService.PHASE_LOCK_SETTINGS_READY: 2104 onLockSettingsReady(); 2105 break; 2106 case SystemService.PHASE_BOOT_COMPLETED: 2107 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2108 break; 2109 } 2110 } 2111 2112 private void onLockSettingsReady() { 2113 getUserData(UserHandle.USER_SYSTEM); 2114 loadOwners(); 2115 cleanUpOldUsers(); 2116 // Register an observer for watching for user setup complete. 2117 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 2118 // Initialize the user setup state, to handle the upgrade case. 2119 updateUserSetupComplete(); 2120 2121 // Update the screen capture disabled cache in the window manager 2122 List<UserInfo> users = mUserManager.getUsers(true); 2123 final int N = users.size(); 2124 for (int i = 0; i < N; i++) { 2125 int userHandle = users.get(i).id; 2126 updateScreenCaptureDisabledInWindowManager(userHandle, 2127 getScreenCaptureDisabled(null, userHandle)); 2128 } 2129 } 2130 2131 private void ensureDeviceOwnerUserStarted() { 2132 if (mOwners.hasDeviceOwner()) { 2133 final int userId = mOwners.getDeviceOwnerUserId(); 2134 if (VERBOSE_LOG) { 2135 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2136 } 2137 if (userId != UserHandle.USER_SYSTEM) { 2138 try { 2139 mInjector.getIActivityManager().startUserInBackground(userId); 2140 2141 // STOPSHIP Prevent the DO user from being killed. 2142 2143 } catch (RemoteException e) { 2144 Slog.w(LOG_TAG, "Exception starting user", e); 2145 } 2146 } 2147 } 2148 } 2149 2150 private void cleanUpOldUsers() { 2151 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2152 // before reboot 2153 Set<Integer> usersWithProfileOwners; 2154 Set<Integer> usersWithData; 2155 synchronized(this) { 2156 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2157 usersWithData = new ArraySet<>(); 2158 for (int i = 0; i < mUserData.size(); i++) { 2159 usersWithData.add(mUserData.keyAt(i)); 2160 } 2161 } 2162 List<UserInfo> allUsers = mUserManager.getUsers(); 2163 2164 Set<Integer> deletedUsers = new ArraySet<>(); 2165 deletedUsers.addAll(usersWithProfileOwners); 2166 deletedUsers.addAll(usersWithData); 2167 for (UserInfo userInfo : allUsers) { 2168 deletedUsers.remove(userInfo.id); 2169 } 2170 for (Integer userId : deletedUsers) { 2171 removeUserData(userId); 2172 } 2173 } 2174 2175 private void handlePasswordExpirationNotification(int userHandle) { 2176 synchronized (this) { 2177 final long now = System.currentTimeMillis(); 2178 2179 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2180 for (UserInfo ui : profiles) { 2181 int profileUserHandle = ui.id; 2182 final DevicePolicyData policy = getUserData(profileUserHandle); 2183 final int count = policy.mAdminList.size(); 2184 if (count > 0) { 2185 for (int i = 0; i < count; i++) { 2186 final ActiveAdmin admin = policy.mAdminList.get(i); 2187 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2188 && admin.passwordExpirationTimeout > 0L 2189 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2190 && admin.passwordExpirationDate > 0L) { 2191 sendAdminCommandLocked(admin, 2192 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2193 } 2194 } 2195 } 2196 } 2197 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2198 } 2199 } 2200 2201 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 2202 @Override 2203 protected Void doInBackground(Intent... params) { 2204 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 2205 2206 if (userHandle == UserHandle.USER_ALL) { 2207 for (UserInfo userInfo : mUserManager.getUsers()) { 2208 manageNotification(userInfo.getUserHandle()); 2209 } 2210 } else { 2211 manageNotification(new UserHandle(userHandle)); 2212 } 2213 return null; 2214 } 2215 2216 private void manageNotification(UserHandle userHandle) { 2217 if (!mUserManager.isUserRunning(userHandle)) { 2218 return; 2219 } 2220 2221 // Call out to KeyChain to check for user-added CAs 2222 boolean hasCert = false; 2223 try { 2224 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 2225 try { 2226 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 2227 hasCert = true; 2228 } 2229 } catch (RemoteException e) { 2230 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2231 } finally { 2232 kcs.close(); 2233 } 2234 } catch (InterruptedException e) { 2235 Thread.currentThread().interrupt(); 2236 } catch (RuntimeException e) { 2237 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2238 } 2239 if (!hasCert) { 2240 mInjector.getNotificationManager().cancelAsUser( 2241 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2242 return; 2243 } 2244 2245 // Build and show a warning notification 2246 int smallIconId; 2247 String contentText; 2248 final String ownerName = getDeviceOwnerName(); 2249 if (isManagedProfile(userHandle.getIdentifier())) { 2250 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 2251 smallIconId = R.drawable.stat_sys_certificate_info; 2252 } else if (ownerName != null) { 2253 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 2254 smallIconId = R.drawable.stat_sys_certificate_info; 2255 } else { 2256 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2257 smallIconId = android.R.drawable.stat_sys_warning; 2258 } 2259 2260 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2261 dialogIntent.setFlags( 2262 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2263 dialogIntent.setPackage("com.android.settings"); 2264 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2265 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 2266 2267 final Context userContext; 2268 try { 2269 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 2270 } catch (PackageManager.NameNotFoundException e) { 2271 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2272 return; 2273 } 2274 final Notification noti = new Notification.Builder(userContext) 2275 .setSmallIcon(smallIconId) 2276 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 2277 .setContentText(contentText) 2278 .setContentIntent(notifyIntent) 2279 .setPriority(Notification.PRIORITY_HIGH) 2280 .setShowWhen(false) 2281 .setColor(mContext.getColor( 2282 com.android.internal.R.color.system_notification_accent_color)) 2283 .build(); 2284 2285 mInjector.getNotificationManager().notifyAsUser( 2286 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2287 } 2288 } 2289 2290 /** 2291 * @param adminReceiver The admin to add 2292 * @param refreshing true = update an active admin, no error 2293 */ 2294 @Override 2295 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2296 if (!mHasFeature) { 2297 return; 2298 } 2299 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2300 } 2301 2302 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2303 Bundle onEnableData) { 2304 mContext.enforceCallingOrSelfPermission( 2305 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2306 enforceCrossUserPermission(userHandle); 2307 2308 DevicePolicyData policy = getUserData(userHandle); 2309 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle); 2310 if (info == null) { 2311 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2312 } 2313 synchronized (this) { 2314 long ident = mInjector.binderClearCallingIdentity(); 2315 try { 2316 if (!refreshing 2317 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 2318 throw new IllegalArgumentException("Admin is already added"); 2319 } 2320 ActiveAdmin newAdmin = new ActiveAdmin(info); 2321 policy.mAdminMap.put(adminReceiver, newAdmin); 2322 int replaceIndex = -1; 2323 final int N = policy.mAdminList.size(); 2324 for (int i=0; i < N; i++) { 2325 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2326 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2327 replaceIndex = i; 2328 break; 2329 } 2330 } 2331 if (replaceIndex == -1) { 2332 policy.mAdminList.add(newAdmin); 2333 enableIfNecessary(info.getPackageName(), userHandle); 2334 } else { 2335 policy.mAdminList.set(replaceIndex, newAdmin); 2336 } 2337 saveSettingsLocked(userHandle); 2338 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2339 onEnableData, null); 2340 } finally { 2341 mInjector.binderRestoreCallingIdentity(ident); 2342 } 2343 } 2344 } 2345 2346 @Override 2347 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2348 if (!mHasFeature) { 2349 return false; 2350 } 2351 enforceCrossUserPermission(userHandle); 2352 synchronized (this) { 2353 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2354 } 2355 } 2356 2357 @Override 2358 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2359 if (!mHasFeature) { 2360 return false; 2361 } 2362 enforceCrossUserPermission(userHandle); 2363 synchronized (this) { 2364 DevicePolicyData policyData = getUserData(userHandle); 2365 return policyData.mRemovingAdmins.contains(adminReceiver); 2366 } 2367 } 2368 2369 @Override 2370 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2371 if (!mHasFeature) { 2372 return false; 2373 } 2374 enforceCrossUserPermission(userHandle); 2375 synchronized (this) { 2376 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2377 if (administrator == null) { 2378 throw new SecurityException("No active admin " + adminReceiver); 2379 } 2380 return administrator.info.usesPolicy(policyId); 2381 } 2382 } 2383 2384 @Override 2385 @SuppressWarnings("unchecked") 2386 public List<ComponentName> getActiveAdmins(int userHandle) { 2387 if (!mHasFeature) { 2388 return Collections.EMPTY_LIST; 2389 } 2390 2391 enforceCrossUserPermission(userHandle); 2392 synchronized (this) { 2393 DevicePolicyData policy = getUserData(userHandle); 2394 final int N = policy.mAdminList.size(); 2395 if (N <= 0) { 2396 return null; 2397 } 2398 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2399 for (int i=0; i<N; i++) { 2400 res.add(policy.mAdminList.get(i).info.getComponent()); 2401 } 2402 return res; 2403 } 2404 } 2405 2406 @Override 2407 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2408 if (!mHasFeature) { 2409 return false; 2410 } 2411 enforceCrossUserPermission(userHandle); 2412 synchronized (this) { 2413 DevicePolicyData policy = getUserData(userHandle); 2414 final int N = policy.mAdminList.size(); 2415 for (int i=0; i<N; i++) { 2416 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2417 return true; 2418 } 2419 } 2420 return false; 2421 } 2422 } 2423 2424 @Override 2425 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 2426 if (!mHasFeature) { 2427 return; 2428 } 2429 enforceCrossUserPermission(userHandle); 2430 synchronized (this) { 2431 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2432 if (admin == null) { 2433 return; 2434 } 2435 if (admin.getUid() != mInjector.binderGetCallingUid()) { 2436 // Active device/profile owners must remain active admins. 2437 if (isDeviceOwner(adminReceiver, userHandle) 2438 || isProfileOwner(adminReceiver, userHandle)) { 2439 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 2440 adminReceiver); 2441 return; 2442 } 2443 mContext.enforceCallingOrSelfPermission( 2444 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2445 } 2446 long ident = mInjector.binderClearCallingIdentity(); 2447 try { 2448 removeActiveAdminLocked(adminReceiver, userHandle); 2449 } finally { 2450 mInjector.binderRestoreCallingIdentity(ident); 2451 } 2452 } 2453 } 2454 2455 @Override 2456 public void setPasswordQuality(ComponentName who, int quality) { 2457 if (!mHasFeature) { 2458 return; 2459 } 2460 Preconditions.checkNotNull(who, "ComponentName is null"); 2461 final int userHandle = UserHandle.getCallingUserId(); 2462 validateQualityConstant(quality); 2463 2464 synchronized (this) { 2465 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2466 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2467 if (ap.passwordQuality != quality) { 2468 ap.passwordQuality = quality; 2469 saveSettingsLocked(userHandle); 2470 } 2471 } 2472 } 2473 2474 @Override 2475 public int getPasswordQuality(ComponentName who, int userHandle) { 2476 if (!mHasFeature) { 2477 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2478 } 2479 enforceCrossUserPermission(userHandle); 2480 synchronized (this) { 2481 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2482 2483 if (who != null) { 2484 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2485 return admin != null ? admin.passwordQuality : mode; 2486 } 2487 2488 // Return strictest policy for this user and profiles that are visible from this user. 2489 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2490 for (UserInfo userInfo : profiles) { 2491 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2492 final int N = policy.mAdminList.size(); 2493 for (int i=0; i<N; i++) { 2494 ActiveAdmin admin = policy.mAdminList.get(i); 2495 if (mode < admin.passwordQuality) { 2496 mode = admin.passwordQuality; 2497 } 2498 } 2499 } 2500 return mode; 2501 } 2502 } 2503 2504 @Override 2505 public void setPasswordMinimumLength(ComponentName who, int length) { 2506 if (!mHasFeature) { 2507 return; 2508 } 2509 Preconditions.checkNotNull(who, "ComponentName is null"); 2510 final int userHandle = UserHandle.getCallingUserId(); 2511 synchronized (this) { 2512 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2513 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2514 if (ap.minimumPasswordLength != length) { 2515 ap.minimumPasswordLength = length; 2516 saveSettingsLocked(userHandle); 2517 } 2518 } 2519 } 2520 2521 @Override 2522 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 2523 if (!mHasFeature) { 2524 return 0; 2525 } 2526 enforceCrossUserPermission(userHandle); 2527 synchronized (this) { 2528 int length = 0; 2529 2530 if (who != null) { 2531 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2532 return admin != null ? admin.minimumPasswordLength : length; 2533 } 2534 2535 // Return strictest policy for this user and profiles that are visible from this user. 2536 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2537 for (UserInfo userInfo : profiles) { 2538 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2539 final int N = policy.mAdminList.size(); 2540 for (int i=0; i<N; i++) { 2541 ActiveAdmin admin = policy.mAdminList.get(i); 2542 if (length < admin.minimumPasswordLength) { 2543 length = admin.minimumPasswordLength; 2544 } 2545 } 2546 } 2547 return length; 2548 } 2549 } 2550 2551 @Override 2552 public void setPasswordHistoryLength(ComponentName who, int length) { 2553 if (!mHasFeature) { 2554 return; 2555 } 2556 Preconditions.checkNotNull(who, "ComponentName is null"); 2557 final int userHandle = UserHandle.getCallingUserId(); 2558 synchronized (this) { 2559 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2560 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2561 if (ap.passwordHistoryLength != length) { 2562 ap.passwordHistoryLength = length; 2563 saveSettingsLocked(userHandle); 2564 } 2565 } 2566 } 2567 2568 @Override 2569 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 2570 if (!mHasFeature) { 2571 return 0; 2572 } 2573 enforceCrossUserPermission(userHandle); 2574 synchronized (this) { 2575 int length = 0; 2576 2577 if (who != null) { 2578 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2579 return admin != null ? admin.passwordHistoryLength : length; 2580 } 2581 2582 // Return strictest policy for this user and profiles that are visible from this user. 2583 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2584 for (UserInfo userInfo : profiles) { 2585 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2586 final int N = policy.mAdminList.size(); 2587 for (int i = 0; i < N; i++) { 2588 ActiveAdmin admin = policy.mAdminList.get(i); 2589 if (length < admin.passwordHistoryLength) { 2590 length = admin.passwordHistoryLength; 2591 } 2592 } 2593 } 2594 return length; 2595 } 2596 } 2597 2598 @Override 2599 public void setPasswordExpirationTimeout(ComponentName who, long timeout) { 2600 if (!mHasFeature) { 2601 return; 2602 } 2603 Preconditions.checkNotNull(who, "ComponentName is null"); 2604 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 2605 final int userHandle = UserHandle.getCallingUserId(); 2606 synchronized (this) { 2607 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2608 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2609 // Calling this API automatically bumps the expiration date 2610 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2611 ap.passwordExpirationDate = expiration; 2612 ap.passwordExpirationTimeout = timeout; 2613 if (timeout > 0L) { 2614 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2615 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2616 .format(new Date(expiration))); 2617 } 2618 saveSettingsLocked(userHandle); 2619 // in case this is the first one 2620 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2621 } 2622 } 2623 2624 /** 2625 * Return a single admin's expiration cycle time, or the min of all cycle times. 2626 * Returns 0 if not configured. 2627 */ 2628 @Override 2629 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2630 if (!mHasFeature) { 2631 return 0L; 2632 } 2633 enforceCrossUserPermission(userHandle); 2634 synchronized (this) { 2635 long timeout = 0L; 2636 2637 if (who != null) { 2638 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2639 return admin != null ? admin.passwordExpirationTimeout : timeout; 2640 } 2641 2642 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2643 for (UserInfo userInfo : profiles) { 2644 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2645 final int N = policy.mAdminList.size(); 2646 for (int i = 0; i < N; i++) { 2647 ActiveAdmin admin = policy.mAdminList.get(i); 2648 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2649 && timeout > admin.passwordExpirationTimeout)) { 2650 timeout = admin.passwordExpirationTimeout; 2651 } 2652 } 2653 } 2654 return timeout; 2655 } 2656 } 2657 2658 @Override 2659 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2660 final int userId = UserHandle.getCallingUserId(); 2661 List<String> changedProviders = null; 2662 2663 synchronized (this) { 2664 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2665 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2666 if (activeAdmin.crossProfileWidgetProviders == null) { 2667 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2668 } 2669 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2670 if (!providers.contains(packageName)) { 2671 providers.add(packageName); 2672 changedProviders = new ArrayList<>(providers); 2673 saveSettingsLocked(userId); 2674 } 2675 } 2676 2677 if (changedProviders != null) { 2678 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2679 return true; 2680 } 2681 2682 return false; 2683 } 2684 2685 @Override 2686 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2687 final int userId = UserHandle.getCallingUserId(); 2688 List<String> changedProviders = null; 2689 2690 synchronized (this) { 2691 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2692 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2693 if (activeAdmin.crossProfileWidgetProviders == null) { 2694 return false; 2695 } 2696 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2697 if (providers.remove(packageName)) { 2698 changedProviders = new ArrayList<>(providers); 2699 saveSettingsLocked(userId); 2700 } 2701 } 2702 2703 if (changedProviders != null) { 2704 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2705 return true; 2706 } 2707 2708 return false; 2709 } 2710 2711 @Override 2712 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2713 synchronized (this) { 2714 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2715 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2716 if (activeAdmin.crossProfileWidgetProviders == null 2717 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2718 return null; 2719 } 2720 if (mInjector.binderIsCallingUidMyUid()) { 2721 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2722 } else { 2723 return activeAdmin.crossProfileWidgetProviders; 2724 } 2725 } 2726 } 2727 2728 /** 2729 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2730 * Returns 0 if not configured. 2731 */ 2732 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2733 long timeout = 0L; 2734 2735 if (who != null) { 2736 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2737 return admin != null ? admin.passwordExpirationDate : timeout; 2738 } 2739 2740 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2741 for (UserInfo userInfo : profiles) { 2742 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2743 final int N = policy.mAdminList.size(); 2744 for (int i = 0; i < N; i++) { 2745 ActiveAdmin admin = policy.mAdminList.get(i); 2746 if (timeout == 0L || (admin.passwordExpirationDate != 0 2747 && timeout > admin.passwordExpirationDate)) { 2748 timeout = admin.passwordExpirationDate; 2749 } 2750 } 2751 } 2752 return timeout; 2753 } 2754 2755 @Override 2756 public long getPasswordExpiration(ComponentName who, int userHandle) { 2757 if (!mHasFeature) { 2758 return 0L; 2759 } 2760 enforceCrossUserPermission(userHandle); 2761 synchronized (this) { 2762 return getPasswordExpirationLocked(who, userHandle); 2763 } 2764 } 2765 2766 @Override 2767 public void setPasswordMinimumUpperCase(ComponentName who, int length) { 2768 if (!mHasFeature) { 2769 return; 2770 } 2771 Preconditions.checkNotNull(who, "ComponentName is null"); 2772 final int userHandle = UserHandle.getCallingUserId(); 2773 synchronized (this) { 2774 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2775 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2776 if (ap.minimumPasswordUpperCase != length) { 2777 ap.minimumPasswordUpperCase = length; 2778 saveSettingsLocked(userHandle); 2779 } 2780 } 2781 } 2782 2783 @Override 2784 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2785 if (!mHasFeature) { 2786 return 0; 2787 } 2788 enforceCrossUserPermission(userHandle); 2789 synchronized (this) { 2790 int length = 0; 2791 2792 if (who != null) { 2793 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2794 return admin != null ? admin.minimumPasswordUpperCase : length; 2795 } 2796 2797 // Return strictest policy for this user and profiles that are visible from this user. 2798 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2799 for (UserInfo userInfo : profiles) { 2800 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2801 final int N = policy.mAdminList.size(); 2802 for (int i=0; i<N; i++) { 2803 ActiveAdmin admin = policy.mAdminList.get(i); 2804 if (length < admin.minimumPasswordUpperCase) { 2805 length = admin.minimumPasswordUpperCase; 2806 } 2807 } 2808 } 2809 return length; 2810 } 2811 } 2812 2813 @Override 2814 public void setPasswordMinimumLowerCase(ComponentName who, int length) { 2815 Preconditions.checkNotNull(who, "ComponentName is null"); 2816 final int userHandle = UserHandle.getCallingUserId(); 2817 synchronized (this) { 2818 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2819 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2820 if (ap.minimumPasswordLowerCase != length) { 2821 ap.minimumPasswordLowerCase = length; 2822 saveSettingsLocked(userHandle); 2823 } 2824 } 2825 } 2826 2827 @Override 2828 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2829 if (!mHasFeature) { 2830 return 0; 2831 } 2832 enforceCrossUserPermission(userHandle); 2833 synchronized (this) { 2834 int length = 0; 2835 2836 if (who != null) { 2837 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2838 return admin != null ? admin.minimumPasswordLowerCase : length; 2839 } 2840 2841 // Return strictest policy for this user and profiles that are visible from this user. 2842 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2843 for (UserInfo userInfo : profiles) { 2844 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2845 final int N = policy.mAdminList.size(); 2846 for (int i=0; i<N; i++) { 2847 ActiveAdmin admin = policy.mAdminList.get(i); 2848 if (length < admin.minimumPasswordLowerCase) { 2849 length = admin.minimumPasswordLowerCase; 2850 } 2851 } 2852 } 2853 return length; 2854 } 2855 } 2856 2857 @Override 2858 public void setPasswordMinimumLetters(ComponentName who, int length) { 2859 if (!mHasFeature) { 2860 return; 2861 } 2862 Preconditions.checkNotNull(who, "ComponentName is null"); 2863 final int userHandle = UserHandle.getCallingUserId(); 2864 synchronized (this) { 2865 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2866 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2867 if (ap.minimumPasswordLetters != length) { 2868 ap.minimumPasswordLetters = length; 2869 saveSettingsLocked(userHandle); 2870 } 2871 } 2872 } 2873 2874 @Override 2875 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2876 if (!mHasFeature) { 2877 return 0; 2878 } 2879 enforceCrossUserPermission(userHandle); 2880 synchronized (this) { 2881 int length = 0; 2882 2883 if (who != null) { 2884 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2885 return admin != null ? admin.minimumPasswordLetters : length; 2886 } 2887 2888 // Return strictest policy for this user and profiles that are visible from this user. 2889 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2890 for (UserInfo userInfo : profiles) { 2891 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2892 final int N = policy.mAdminList.size(); 2893 for (int i=0; i<N; i++) { 2894 ActiveAdmin admin = policy.mAdminList.get(i); 2895 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2896 continue; 2897 } 2898 if (length < admin.minimumPasswordLetters) { 2899 length = admin.minimumPasswordLetters; 2900 } 2901 } 2902 } 2903 return length; 2904 } 2905 } 2906 2907 @Override 2908 public void setPasswordMinimumNumeric(ComponentName who, int length) { 2909 if (!mHasFeature) { 2910 return; 2911 } 2912 Preconditions.checkNotNull(who, "ComponentName is null"); 2913 final int userHandle = UserHandle.getCallingUserId(); 2914 synchronized (this) { 2915 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2916 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2917 if (ap.minimumPasswordNumeric != length) { 2918 ap.minimumPasswordNumeric = length; 2919 saveSettingsLocked(userHandle); 2920 } 2921 } 2922 } 2923 2924 @Override 2925 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2926 if (!mHasFeature) { 2927 return 0; 2928 } 2929 enforceCrossUserPermission(userHandle); 2930 synchronized (this) { 2931 int length = 0; 2932 2933 if (who != null) { 2934 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2935 return admin != null ? admin.minimumPasswordNumeric : length; 2936 } 2937 2938 // Return strictest policy for this user and profiles that are visible from this user. 2939 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2940 for (UserInfo userInfo : profiles) { 2941 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2942 final int N = policy.mAdminList.size(); 2943 for (int i = 0; i < N; i++) { 2944 ActiveAdmin admin = policy.mAdminList.get(i); 2945 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2946 continue; 2947 } 2948 if (length < admin.minimumPasswordNumeric) { 2949 length = admin.minimumPasswordNumeric; 2950 } 2951 } 2952 } 2953 return length; 2954 } 2955 } 2956 2957 @Override 2958 public void setPasswordMinimumSymbols(ComponentName who, int length) { 2959 if (!mHasFeature) { 2960 return; 2961 } 2962 Preconditions.checkNotNull(who, "ComponentName is null"); 2963 final int userHandle = UserHandle.getCallingUserId(); 2964 synchronized (this) { 2965 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2966 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2967 if (ap.minimumPasswordSymbols != length) { 2968 ap.minimumPasswordSymbols = length; 2969 saveSettingsLocked(userHandle); 2970 } 2971 } 2972 } 2973 2974 @Override 2975 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 2976 if (!mHasFeature) { 2977 return 0; 2978 } 2979 enforceCrossUserPermission(userHandle); 2980 synchronized (this) { 2981 int length = 0; 2982 2983 if (who != null) { 2984 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2985 return admin != null ? admin.minimumPasswordSymbols : length; 2986 } 2987 2988 // Return strictest policy for this user and profiles that are visible from this user. 2989 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2990 for (UserInfo userInfo : profiles) { 2991 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2992 final int N = policy.mAdminList.size(); 2993 for (int i=0; i<N; i++) { 2994 ActiveAdmin admin = policy.mAdminList.get(i); 2995 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2996 continue; 2997 } 2998 if (length < admin.minimumPasswordSymbols) { 2999 length = admin.minimumPasswordSymbols; 3000 } 3001 } 3002 } 3003 return length; 3004 } 3005 } 3006 3007 @Override 3008 public void setPasswordMinimumNonLetter(ComponentName who, int length) { 3009 if (!mHasFeature) { 3010 return; 3011 } 3012 Preconditions.checkNotNull(who, "ComponentName is null"); 3013 final int userHandle = UserHandle.getCallingUserId(); 3014 synchronized (this) { 3015 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3016 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3017 if (ap.minimumPasswordNonLetter != length) { 3018 ap.minimumPasswordNonLetter = length; 3019 saveSettingsLocked(userHandle); 3020 } 3021 } 3022 } 3023 3024 @Override 3025 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 3026 if (!mHasFeature) { 3027 return 0; 3028 } 3029 enforceCrossUserPermission(userHandle); 3030 synchronized (this) { 3031 int length = 0; 3032 3033 if (who != null) { 3034 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3035 return admin != null ? admin.minimumPasswordNonLetter : length; 3036 } 3037 3038 // Return strictest policy for this user and profiles that are visible from this user. 3039 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3040 for (UserInfo userInfo : profiles) { 3041 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3042 final int N = policy.mAdminList.size(); 3043 for (int i=0; i<N; i++) { 3044 ActiveAdmin admin = policy.mAdminList.get(i); 3045 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3046 continue; 3047 } 3048 if (length < admin.minimumPasswordNonLetter) { 3049 length = admin.minimumPasswordNonLetter; 3050 } 3051 } 3052 } 3053 return length; 3054 } 3055 } 3056 3057 @Override 3058 public boolean isActivePasswordSufficient(int userHandle) { 3059 if (!mHasFeature) { 3060 return true; 3061 } 3062 enforceCrossUserPermission(userHandle); 3063 3064 synchronized (this) { 3065 3066 // The active password is stored in the user that runs the launcher 3067 // If the user this is called from is part of a profile group, that is the parent 3068 // of the group. 3069 UserInfo parent = getProfileParent(userHandle); 3070 int id = (parent == null) ? userHandle : parent.id; 3071 DevicePolicyData policy = getUserDataUnchecked(id); 3072 3073 // This API can only be called by an active device admin, 3074 // so try to retrieve it to check that the caller is one. 3075 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3076 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 3077 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 3078 return false; 3079 } 3080 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3081 return true; 3082 } 3083 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 3084 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 3085 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 3086 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 3087 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 3088 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 3089 } 3090 } 3091 3092 @Override 3093 public int getCurrentFailedPasswordAttempts(int userHandle) { 3094 synchronized (this) { 3095 // This API can only be called by an active device admin, 3096 // so try to retrieve it to check that the caller is one. 3097 getActiveAdminForCallerLocked(null, 3098 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3099 3100 // The active password is stored in the parent. 3101 UserInfo parent = getProfileParent(userHandle); 3102 int id = (parent == null) ? userHandle : parent.id; 3103 DevicePolicyData policy = getUserDataUnchecked(id); 3104 3105 return policy.mFailedPasswordAttempts; 3106 } 3107 } 3108 3109 @Override 3110 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) { 3111 if (!mHasFeature) { 3112 return; 3113 } 3114 Preconditions.checkNotNull(who, "ComponentName is null"); 3115 final int userHandle = UserHandle.getCallingUserId(); 3116 synchronized (this) { 3117 // This API can only be called by an active device admin, 3118 // so try to retrieve it to check that the caller is one. 3119 getActiveAdminForCallerLocked(who, 3120 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3121 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3122 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3123 if (ap.maximumFailedPasswordsForWipe != num) { 3124 ap.maximumFailedPasswordsForWipe = num; 3125 saveSettingsLocked(userHandle); 3126 } 3127 } 3128 } 3129 3130 @Override 3131 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 3132 if (!mHasFeature) { 3133 return 0; 3134 } 3135 enforceCrossUserPermission(userHandle); 3136 synchronized (this) { 3137 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 3138 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3139 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3140 } 3141 } 3142 3143 @Override 3144 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle) { 3145 if (!mHasFeature) { 3146 return UserHandle.USER_NULL; 3147 } 3148 enforceCrossUserPermission(userHandle); 3149 synchronized (this) { 3150 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3151 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3152 } 3153 } 3154 3155 /** 3156 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 3157 * profiles that are visible from this user. If the policy for the primary and any other profile 3158 * are equal, it returns the admin for the primary profile. 3159 * Returns {@code null} if none of them have that policy set. 3160 */ 3161 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 3162 int count = 0; 3163 ActiveAdmin strictestAdmin = null; 3164 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3165 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3166 for (ActiveAdmin admin : policy.mAdminList) { 3167 if (admin.maximumFailedPasswordsForWipe == 3168 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3169 continue; // No max number of failed passwords policy set for this profile. 3170 } 3171 3172 // We always favor the primary profile if several profiles have the same value set. 3173 if (count == 0 || 3174 count > admin.maximumFailedPasswordsForWipe || 3175 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 3176 count = admin.maximumFailedPasswordsForWipe; 3177 strictestAdmin = admin; 3178 } 3179 } 3180 } 3181 return strictestAdmin; 3182 } 3183 3184 @Override 3185 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 3186 if (!mHasFeature) { 3187 return false; 3188 } 3189 final int callingUid = mInjector.binderGetCallingUid(); 3190 final int userHandle = mInjector.userHandleGetCallingUserId(); 3191 3192 long ident = mInjector.binderClearCallingIdentity(); 3193 try { 3194 if (mUserManager.getCredentialOwnerProfile(userHandle) != userHandle) { 3195 throw new SecurityException("You can not change password for this profile because" 3196 + " it shares the password with the owner profile"); 3197 } 3198 } finally { 3199 mInjector.binderRestoreCallingIdentity(ident); 3200 } 3201 3202 String password = passwordOrNull != null ? passwordOrNull : ""; 3203 3204 int quality; 3205 synchronized (this) { 3206 // If caller has PO (or DO), it can clear the password, so see if that's the case 3207 // first. 3208 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 3209 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 3210 if (admin == null) { 3211 // Otherwise, make sure the caller has any active admin with the right policy. 3212 admin = getActiveAdminForCallerLocked(null, 3213 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3214 } 3215 3216 final ComponentName adminComponent = admin.info.getComponent(); 3217 3218 // As of N, only profile owners and device owners can reset the password. 3219 if (!(isProfileOwner(adminComponent, userHandle) 3220 || isDeviceOwner(adminComponent, userHandle))) { 3221 final boolean preN = getTargetSdk(admin.info.getPackageName(), userHandle) 3222 < android.os.Build.VERSION_CODES.N; 3223 // As of N, password resetting to empty/null is not allowed anymore. 3224 // TODO Should we allow DO/PO to set an empty password? 3225 if (TextUtils.isEmpty(password)) { 3226 if (!preN) { 3227 throw new SecurityException("Cannot call with null password"); 3228 } else { 3229 Slog.e(LOG_TAG, "Cannot call with null password"); 3230 return false; 3231 } 3232 } 3233 // As of N, password cannot be changed by the admin if it is already set. 3234 if (isLockScreenSecureUnchecked(userHandle)) { 3235 if (!preN) { 3236 throw new SecurityException("Admin cannot change current password"); 3237 } else { 3238 Slog.e(LOG_TAG, "Admin cannot change current password"); 3239 return false; 3240 } 3241 } 3242 } 3243 quality = getPasswordQuality(null, userHandle); 3244 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3245 int realQuality = LockPatternUtils.computePasswordQuality(password); 3246 if (realQuality < quality 3247 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3248 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3249 + Integer.toHexString(realQuality) 3250 + " does not meet required quality 0x" 3251 + Integer.toHexString(quality)); 3252 return false; 3253 } 3254 quality = Math.max(realQuality, quality); 3255 } 3256 int length = getPasswordMinimumLength(null, userHandle); 3257 if (password.length() < length) { 3258 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3259 + " does not meet required length " + length); 3260 return false; 3261 } 3262 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3263 int letters = 0; 3264 int uppercase = 0; 3265 int lowercase = 0; 3266 int numbers = 0; 3267 int symbols = 0; 3268 int nonletter = 0; 3269 for (int i = 0; i < password.length(); i++) { 3270 char c = password.charAt(i); 3271 if (c >= 'A' && c <= 'Z') { 3272 letters++; 3273 uppercase++; 3274 } else if (c >= 'a' && c <= 'z') { 3275 letters++; 3276 lowercase++; 3277 } else if (c >= '0' && c <= '9') { 3278 numbers++; 3279 nonletter++; 3280 } else { 3281 symbols++; 3282 nonletter++; 3283 } 3284 } 3285 int neededLetters = getPasswordMinimumLetters(null, userHandle); 3286 if(letters < neededLetters) { 3287 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 3288 + " does not meet required number of letters " + neededLetters); 3289 return false; 3290 } 3291 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 3292 if (numbers < neededNumbers) { 3293 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 3294 + " does not meet required number of numerical digits " 3295 + neededNumbers); 3296 return false; 3297 } 3298 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 3299 if (lowercase < neededLowerCase) { 3300 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 3301 + " does not meet required number of lowercase letters " 3302 + neededLowerCase); 3303 return false; 3304 } 3305 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 3306 if (uppercase < neededUpperCase) { 3307 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 3308 + " does not meet required number of uppercase letters " 3309 + neededUpperCase); 3310 return false; 3311 } 3312 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 3313 if (symbols < neededSymbols) { 3314 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 3315 + " does not meet required number of special symbols " + neededSymbols); 3316 return false; 3317 } 3318 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 3319 if (nonletter < neededNonLetter) { 3320 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 3321 + " does not meet required number of non-letter characters " 3322 + neededNonLetter); 3323 return false; 3324 } 3325 } 3326 } 3327 3328 DevicePolicyData policy = getUserData(userHandle); 3329 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 3330 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 3331 return false; 3332 } 3333 3334 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 3335 boolean doNotAskCredentialsOnBoot = 3336 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 3337 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 3338 setDoNotAskCredentialsOnBoot(); 3339 } 3340 3341 // Don't do this with the lock held, because it is going to call 3342 // back in to the service. 3343 ident = mInjector.binderClearCallingIdentity(); 3344 try { 3345 LockPatternUtils utils = mInjector.newLockPatternUtils(); 3346 if (!TextUtils.isEmpty(password)) { 3347 utils.saveLockPassword(password, null, quality, userHandle); 3348 } else { 3349 utils.clearLock(userHandle); 3350 } 3351 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 3352 if (requireEntry) { 3353 utils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 3354 UserHandle.USER_ALL); 3355 } 3356 synchronized (this) { 3357 int newOwner = requireEntry ? callingUid : -1; 3358 if (policy.mPasswordOwner != newOwner) { 3359 policy.mPasswordOwner = newOwner; 3360 saveSettingsLocked(userHandle); 3361 } 3362 } 3363 } finally { 3364 mInjector.binderRestoreCallingIdentity(ident); 3365 } 3366 3367 return true; 3368 } 3369 3370 private boolean isLockScreenSecureUnchecked(int userId) { 3371 long ident = mInjector.binderClearCallingIdentity(); 3372 try { 3373 return mInjector.newLockPatternUtils().isSecure(userId); 3374 } finally { 3375 mInjector.binderRestoreCallingIdentity(ident); 3376 } 3377 } 3378 3379 private void setDoNotAskCredentialsOnBoot() { 3380 synchronized (this) { 3381 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3382 if (!policyData.doNotAskCredentialsOnBoot) { 3383 policyData.doNotAskCredentialsOnBoot = true; 3384 saveSettingsLocked(UserHandle.USER_SYSTEM); 3385 } 3386 } 3387 } 3388 3389 @Override 3390 public boolean getDoNotAskCredentialsOnBoot() { 3391 mContext.enforceCallingOrSelfPermission( 3392 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 3393 synchronized (this) { 3394 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3395 return policyData.doNotAskCredentialsOnBoot; 3396 } 3397 } 3398 3399 @Override 3400 public void setMaximumTimeToLock(ComponentName who, long timeMs) { 3401 if (!mHasFeature) { 3402 return; 3403 } 3404 Preconditions.checkNotNull(who, "ComponentName is null"); 3405 final int userHandle = UserHandle.getCallingUserId(); 3406 synchronized (this) { 3407 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3408 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3409 if (ap.maximumTimeToUnlock != timeMs) { 3410 ap.maximumTimeToUnlock = timeMs; 3411 saveSettingsLocked(userHandle); 3412 updateMaximumTimeToLockLocked(getUserData(userHandle)); 3413 } 3414 } 3415 } 3416 3417 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 3418 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 3419 if (policy.mLastMaximumTimeToLock == timeMs) { 3420 return; 3421 } 3422 3423 long ident = mInjector.binderClearCallingIdentity(); 3424 try { 3425 if (timeMs <= 0) { 3426 timeMs = Integer.MAX_VALUE; 3427 } else { 3428 // Make sure KEEP_SCREEN_ON is disabled, since that 3429 // would allow bypassing of the maximum time to lock. 3430 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 3431 } 3432 3433 policy.mLastMaximumTimeToLock = timeMs; 3434 // TODO It can overflow. Cap it. 3435 mInjector.getPowerManagerInternal() 3436 .setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 3437 } finally { 3438 mInjector.binderRestoreCallingIdentity(ident); 3439 } 3440 } 3441 3442 @Override 3443 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 3444 if (!mHasFeature) { 3445 return 0; 3446 } 3447 enforceCrossUserPermission(userHandle); 3448 synchronized (this) { 3449 long time = 0; 3450 3451 if (who != null) { 3452 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3453 return admin != null ? admin.maximumTimeToUnlock : time; 3454 } 3455 3456 // Return strictest policy for this user and profiles that are visible from this user. 3457 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3458 for (UserInfo userInfo : profiles) { 3459 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3460 final int N = policy.mAdminList.size(); 3461 for (int i=0; i<N; i++) { 3462 ActiveAdmin admin = policy.mAdminList.get(i); 3463 if (time == 0) { 3464 time = admin.maximumTimeToUnlock; 3465 } else if (admin.maximumTimeToUnlock != 0 3466 && time > admin.maximumTimeToUnlock) { 3467 time = admin.maximumTimeToUnlock; 3468 } 3469 } 3470 } 3471 return time; 3472 } 3473 } 3474 3475 @Override 3476 public void lockNow() { 3477 if (!mHasFeature) { 3478 return; 3479 } 3480 synchronized (this) { 3481 // This API can only be called by an active device admin, 3482 // so try to retrieve it to check that the caller is one. 3483 getActiveAdminForCallerLocked(null, 3484 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3485 lockNowUnchecked(); 3486 } 3487 } 3488 3489 private void lockNowUnchecked() { 3490 long ident = mInjector.binderClearCallingIdentity(); 3491 try { 3492 // Power off the display 3493 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 3494 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 3495 // Ensure the device is locked 3496 new LockPatternUtils(mContext).requireStrongAuth( 3497 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, UserHandle.USER_ALL); 3498 mInjector.getIWindowManager().lockNow(null); 3499 } catch (RemoteException e) { 3500 } finally { 3501 mInjector.binderRestoreCallingIdentity(ident); 3502 } 3503 } 3504 3505 @Override 3506 public void enforceCanManageCaCerts(ComponentName who) { 3507 if (who == null) { 3508 if (!isCallerDelegatedCertInstaller()) { 3509 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 3510 } 3511 } else { 3512 synchronized (this) { 3513 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3514 } 3515 } 3516 } 3517 3518 private boolean isCallerDelegatedCertInstaller() { 3519 final int callingUid = mInjector.binderGetCallingUid(); 3520 final int userHandle = UserHandle.getUserId(callingUid); 3521 synchronized (this) { 3522 final DevicePolicyData policy = getUserData(userHandle); 3523 if (policy.mDelegatedCertInstallerPackage == null) { 3524 return false; 3525 } 3526 3527 try { 3528 int uid = mContext.getPackageManager().getPackageUid( 3529 policy.mDelegatedCertInstallerPackage, userHandle); 3530 return uid == callingUid; 3531 } catch (NameNotFoundException e) { 3532 return false; 3533 } 3534 } 3535 } 3536 3537 @Override 3538 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 3539 enforceCanManageCaCerts(admin); 3540 3541 byte[] pemCert; 3542 try { 3543 X509Certificate cert = parseCert(certBuffer); 3544 pemCert = Credentials.convertToPem(cert); 3545 } catch (CertificateException ce) { 3546 Log.e(LOG_TAG, "Problem converting cert", ce); 3547 return false; 3548 } catch (IOException ioe) { 3549 Log.e(LOG_TAG, "Problem reading cert", ioe); 3550 return false; 3551 } 3552 3553 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3554 final long id = mInjector.binderClearCallingIdentity(); 3555 try { 3556 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3557 try { 3558 keyChainConnection.getService().installCaCertificate(pemCert); 3559 return true; 3560 } catch (RemoteException e) { 3561 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 3562 } finally { 3563 keyChainConnection.close(); 3564 } 3565 } catch (InterruptedException e1) { 3566 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 3567 Thread.currentThread().interrupt(); 3568 } finally { 3569 mInjector.binderRestoreCallingIdentity(id); 3570 } 3571 return false; 3572 } 3573 3574 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 3575 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 3576 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 3577 certBuffer)); 3578 } 3579 3580 @Override 3581 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 3582 enforceCanManageCaCerts(admin); 3583 3584 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3585 final long id = mInjector.binderClearCallingIdentity(); 3586 try { 3587 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3588 try { 3589 for (int i = 0 ; i < aliases.length; i++) { 3590 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 3591 } 3592 } catch (RemoteException e) { 3593 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 3594 } finally { 3595 keyChainConnection.close(); 3596 } 3597 } catch (InterruptedException ie) { 3598 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 3599 Thread.currentThread().interrupt(); 3600 } finally { 3601 mInjector.binderRestoreCallingIdentity(id); 3602 } 3603 } 3604 3605 @Override 3606 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 3607 if (who == null) { 3608 if (!isCallerDelegatedCertInstaller()) { 3609 throw new SecurityException("who == null, but caller is not cert installer"); 3610 } 3611 } else { 3612 synchronized (this) { 3613 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3614 } 3615 } 3616 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3617 final long id = mInjector.binderClearCallingIdentity(); 3618 try { 3619 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3620 try { 3621 IKeyChainService keyChain = keyChainConnection.getService(); 3622 return keyChain.installKeyPair(privKey, cert, alias); 3623 } catch (RemoteException e) { 3624 Log.e(LOG_TAG, "Installing certificate", e); 3625 } finally { 3626 keyChainConnection.close(); 3627 } 3628 } catch (InterruptedException e) { 3629 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 3630 Thread.currentThread().interrupt(); 3631 } finally { 3632 mInjector.binderRestoreCallingIdentity(id); 3633 } 3634 return false; 3635 } 3636 3637 @Override 3638 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 3639 final IBinder response) { 3640 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 3641 if (UserHandle.getAppId(mInjector.binderGetCallingUid()) != Process.SYSTEM_UID) { 3642 return; 3643 } 3644 3645 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 3646 // If there is a profile owner, redirect to that; otherwise query the device owner. 3647 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 3648 if (aliasChooser == null && caller.isSystem()) { 3649 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 3650 if (deviceOwnerAdmin != null) { 3651 aliasChooser = deviceOwnerAdmin.info.getComponent(); 3652 } 3653 } 3654 if (aliasChooser == null) { 3655 sendPrivateKeyAliasResponse(null, response); 3656 return; 3657 } 3658 3659 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 3660 intent.setComponent(aliasChooser); 3661 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 3662 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 3663 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 3664 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 3665 3666 final long id = mInjector.binderClearCallingIdentity(); 3667 try { 3668 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 3669 @Override 3670 public void onReceive(Context context, Intent intent) { 3671 final String chosenAlias = getResultData(); 3672 sendPrivateKeyAliasResponse(chosenAlias, response); 3673 } 3674 }, null, Activity.RESULT_OK, null, null); 3675 } finally { 3676 mInjector.binderRestoreCallingIdentity(id); 3677 } 3678 } 3679 3680 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 3681 final IKeyChainAliasCallback keyChainAliasResponse = 3682 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 3683 new AsyncTask<Void, Void, Void>() { 3684 @Override 3685 protected Void doInBackground(Void... unused) { 3686 try { 3687 keyChainAliasResponse.alias(alias); 3688 } catch (Exception e) { 3689 // Catch everything (not just RemoteException): caller could throw a 3690 // RuntimeException back across processes. 3691 Log.e(LOG_TAG, "error while responding to callback", e); 3692 } 3693 return null; 3694 } 3695 }.execute(); 3696 } 3697 3698 @Override 3699 public void setCertInstallerPackage(ComponentName who, String installerPackage) 3700 throws SecurityException { 3701 int userHandle = UserHandle.getCallingUserId(); 3702 synchronized (this) { 3703 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3704 DevicePolicyData policy = getUserData(userHandle); 3705 policy.mDelegatedCertInstallerPackage = installerPackage; 3706 saveSettingsLocked(userHandle); 3707 } 3708 } 3709 3710 @Override 3711 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 3712 int userHandle = UserHandle.getCallingUserId(); 3713 synchronized (this) { 3714 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3715 DevicePolicyData policy = getUserData(userHandle); 3716 return policy.mDelegatedCertInstallerPackage; 3717 } 3718 } 3719 3720 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 3721 if (wipeExtRequested) { 3722 StorageManager sm = (StorageManager) mContext.getSystemService( 3723 Context.STORAGE_SERVICE); 3724 sm.wipeAdoptableDisks(); 3725 } 3726 try { 3727 RecoverySystem.rebootWipeUserData(mContext, reason); 3728 } catch (IOException | SecurityException e) { 3729 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 3730 } 3731 } 3732 3733 @Override 3734 public void wipeData(int flags) { 3735 if (!mHasFeature) { 3736 return; 3737 } 3738 final int userHandle = mInjector.userHandleGetCallingUserId(); 3739 enforceCrossUserPermission(userHandle); 3740 synchronized (this) { 3741 // This API can only be called by an active device admin, 3742 // so try to retrieve it to check that the caller is one. 3743 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 3744 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3745 3746 final String source = admin.info.getComponent().flattenToShortString(); 3747 3748 long ident = mInjector.binderClearCallingIdentity(); 3749 try { 3750 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 3751 if (!isDeviceOwner(admin.info.getComponent(), userHandle)) { 3752 throw new SecurityException( 3753 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 3754 } 3755 PersistentDataBlockManager manager = (PersistentDataBlockManager) 3756 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 3757 if (manager != null) { 3758 manager.wipe(); 3759 } 3760 } 3761 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 3762 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 3763 "DevicePolicyManager.wipeData() from " + source); 3764 } finally { 3765 mInjector.binderRestoreCallingIdentity(ident); 3766 } 3767 } 3768 } 3769 3770 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 3771 if (userHandle == UserHandle.USER_SYSTEM) { 3772 wipeDataLocked(wipeExtRequested, reason); 3773 } else { 3774 mHandler.post(new Runnable() { 3775 @Override 3776 public void run() { 3777 try { 3778 IActivityManager am = mInjector.getIActivityManager(); 3779 if (am.getCurrentUser().id == userHandle) { 3780 am.switchUser(UserHandle.USER_SYSTEM); 3781 } 3782 3783 boolean isManagedProfile = isManagedProfile(userHandle); 3784 if (!mUserManager.removeUser(userHandle)) { 3785 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 3786 } else if (isManagedProfile) { 3787 sendWipeProfileNotification(); 3788 } 3789 } catch (RemoteException re) { 3790 // Shouldn't happen 3791 } 3792 } 3793 }); 3794 } 3795 } 3796 3797 private void sendWipeProfileNotification() { 3798 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 3799 Notification notification = new Notification.Builder(mContext) 3800 .setSmallIcon(android.R.drawable.stat_sys_warning) 3801 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 3802 .setContentText(contentText) 3803 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 3804 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 3805 .build(); 3806 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 3807 } 3808 3809 private void clearWipeProfileNotification() { 3810 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 3811 } 3812 3813 @Override 3814 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 3815 if (!mHasFeature) { 3816 return; 3817 } 3818 enforceCrossUserPermission(userHandle); 3819 mContext.enforceCallingOrSelfPermission( 3820 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3821 3822 synchronized (this) { 3823 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 3824 if (admin == null) { 3825 try { 3826 result.sendResult(null); 3827 } catch (RemoteException e) { 3828 } 3829 return; 3830 } 3831 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3832 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3833 intent.setComponent(admin.info.getComponent()); 3834 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3835 null, new BroadcastReceiver() { 3836 @Override 3837 public void onReceive(Context context, Intent intent) { 3838 try { 3839 result.sendResult(getResultExtras(false)); 3840 } catch (RemoteException e) { 3841 } 3842 } 3843 }, null, Activity.RESULT_OK, null, null); 3844 } 3845 } 3846 3847 @Override 3848 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3849 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3850 if (!mHasFeature) { 3851 return; 3852 } 3853 enforceCrossUserPermission(userHandle); 3854 // Managed Profile password can only be changed when per user encryption is present. 3855 if (!StorageManager.isFileBasedEncryptionEnabled()) { 3856 enforceNotManagedProfile(userHandle, "set the active password"); 3857 } 3858 3859 mContext.enforceCallingOrSelfPermission( 3860 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3861 DevicePolicyData p = getUserData(userHandle); 3862 3863 validateQualityConstant(quality); 3864 3865 synchronized (this) { 3866 if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length 3867 || p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters 3868 || p.mActivePasswordUpperCase != uppercase 3869 || p.mActivePasswordLowerCase != lowercase 3870 || p.mActivePasswordNumeric != numbers 3871 || p.mActivePasswordSymbols != symbols 3872 || p.mActivePasswordNonLetter != nonletter) { 3873 long ident = mInjector.binderClearCallingIdentity(); 3874 try { 3875 p.mActivePasswordQuality = quality; 3876 p.mActivePasswordLength = length; 3877 p.mActivePasswordLetters = letters; 3878 p.mActivePasswordLowerCase = lowercase; 3879 p.mActivePasswordUpperCase = uppercase; 3880 p.mActivePasswordNumeric = numbers; 3881 p.mActivePasswordSymbols = symbols; 3882 p.mActivePasswordNonLetter = nonletter; 3883 p.mFailedPasswordAttempts = 0; 3884 saveSettingsLocked(userHandle); 3885 updatePasswordExpirationsLocked(userHandle); 3886 setExpirationAlarmCheckLocked(mContext, p); 3887 sendAdminCommandToSelfAndProfilesLocked( 3888 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3889 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3890 } finally { 3891 mInjector.binderRestoreCallingIdentity(ident); 3892 } 3893 } 3894 } 3895 } 3896 3897 /** 3898 * Called any time the device password is updated. Resets all password expiration clocks. 3899 */ 3900 private void updatePasswordExpirationsLocked(int userHandle) { 3901 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3902 for (UserInfo userInfo : profiles) { 3903 int profileId = userInfo.id; 3904 DevicePolicyData policy = getUserDataUnchecked(profileId); 3905 final int N = policy.mAdminList.size(); 3906 if (N > 0) { 3907 for (int i=0; i<N; i++) { 3908 ActiveAdmin admin = policy.mAdminList.get(i); 3909 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3910 long timeout = admin.passwordExpirationTimeout; 3911 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3912 admin.passwordExpirationDate = expiration; 3913 } 3914 } 3915 } 3916 saveSettingsLocked(profileId); 3917 } 3918 } 3919 3920 @Override 3921 public void reportFailedPasswordAttempt(int userHandle) { 3922 enforceCrossUserPermission(userHandle); 3923 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3924 mContext.enforceCallingOrSelfPermission( 3925 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3926 3927 long ident = mInjector.binderClearCallingIdentity(); 3928 try { 3929 boolean wipeData = false; 3930 int identifier = 0; 3931 synchronized (this) { 3932 DevicePolicyData policy = getUserData(userHandle); 3933 policy.mFailedPasswordAttempts++; 3934 saveSettingsLocked(userHandle); 3935 if (mHasFeature) { 3936 ActiveAdmin strictestAdmin = 3937 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3938 int max = strictestAdmin != null 3939 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3940 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 3941 // Wipe the user/profile associated with the policy that was violated. This 3942 // is not necessarily calling user: if the policy that fired was from a 3943 // managed profile rather than the main user profile, we wipe former only. 3944 wipeData = true; 3945 identifier = strictestAdmin.getUserHandle().getIdentifier(); 3946 } 3947 sendAdminCommandToSelfAndProfilesLocked( 3948 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 3949 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3950 } 3951 } 3952 if (wipeData) { 3953 // Call without holding lock. 3954 wipeDeviceOrUserLocked(false, identifier, 3955 "reportFailedPasswordAttempt()"); 3956 } 3957 } finally { 3958 mInjector.binderRestoreCallingIdentity(ident); 3959 } 3960 } 3961 3962 @Override 3963 public void reportSuccessfulPasswordAttempt(int userHandle) { 3964 enforceCrossUserPermission(userHandle); 3965 mContext.enforceCallingOrSelfPermission( 3966 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3967 3968 synchronized (this) { 3969 DevicePolicyData policy = getUserData(userHandle); 3970 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 3971 long ident = mInjector.binderClearCallingIdentity(); 3972 try { 3973 policy.mFailedPasswordAttempts = 0; 3974 policy.mPasswordOwner = -1; 3975 saveSettingsLocked(userHandle); 3976 if (mHasFeature) { 3977 sendAdminCommandToSelfAndProfilesLocked( 3978 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 3979 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3980 } 3981 } finally { 3982 mInjector.binderRestoreCallingIdentity(ident); 3983 } 3984 } 3985 } 3986 } 3987 3988 @Override 3989 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 3990 String exclusionList) { 3991 if (!mHasFeature) { 3992 return null; 3993 } 3994 synchronized(this) { 3995 Preconditions.checkNotNull(who, "ComponentName is null"); 3996 3997 // Only check if system user has set global proxy. We don't allow other users to set it. 3998 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 3999 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4000 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 4001 4002 // Scan through active admins and find if anyone has already 4003 // set the global proxy. 4004 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 4005 for (ComponentName component : compSet) { 4006 ActiveAdmin ap = policy.mAdminMap.get(component); 4007 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 4008 // Another admin already sets the global proxy 4009 // Return it to the caller. 4010 return component; 4011 } 4012 } 4013 4014 // If the user is not system, don't set the global proxy. Fail silently. 4015 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 4016 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 4017 + UserHandle.getCallingUserId() + " is not permitted."); 4018 return null; 4019 } 4020 if (proxySpec == null) { 4021 admin.specifiesGlobalProxy = false; 4022 admin.globalProxySpec = null; 4023 admin.globalProxyExclusionList = null; 4024 } else { 4025 4026 admin.specifiesGlobalProxy = true; 4027 admin.globalProxySpec = proxySpec; 4028 admin.globalProxyExclusionList = exclusionList; 4029 } 4030 4031 // Reset the global proxy accordingly 4032 // Do this using system permissions, as apps cannot write to secure settings 4033 long origId = mInjector.binderClearCallingIdentity(); 4034 try { 4035 resetGlobalProxyLocked(policy); 4036 } finally { 4037 mInjector.binderRestoreCallingIdentity(origId); 4038 } 4039 return null; 4040 } 4041 } 4042 4043 @Override 4044 public ComponentName getGlobalProxyAdmin(int userHandle) { 4045 if (!mHasFeature) { 4046 return null; 4047 } 4048 enforceCrossUserPermission(userHandle); 4049 synchronized(this) { 4050 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4051 // Scan through active admins and find if anyone has already 4052 // set the global proxy. 4053 final int N = policy.mAdminList.size(); 4054 for (int i = 0; i < N; i++) { 4055 ActiveAdmin ap = policy.mAdminList.get(i); 4056 if (ap.specifiesGlobalProxy) { 4057 // Device admin sets the global proxy 4058 // Return it to the caller. 4059 return ap.info.getComponent(); 4060 } 4061 } 4062 } 4063 // No device admin sets the global proxy. 4064 return null; 4065 } 4066 4067 @Override 4068 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 4069 synchronized (this) { 4070 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4071 } 4072 long token = mInjector.binderClearCallingIdentity(); 4073 try { 4074 ConnectivityManager connectivityManager = (ConnectivityManager) 4075 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4076 connectivityManager.setGlobalProxy(proxyInfo); 4077 } finally { 4078 mInjector.binderRestoreCallingIdentity(token); 4079 } 4080 } 4081 4082 private void resetGlobalProxyLocked(DevicePolicyData policy) { 4083 final int N = policy.mAdminList.size(); 4084 for (int i = 0; i < N; i++) { 4085 ActiveAdmin ap = policy.mAdminList.get(i); 4086 if (ap.specifiesGlobalProxy) { 4087 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 4088 return; 4089 } 4090 } 4091 // No device admins defining global proxies - reset global proxy settings to none 4092 saveGlobalProxyLocked(null, null); 4093 } 4094 4095 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 4096 if (exclusionList == null) { 4097 exclusionList = ""; 4098 } 4099 if (proxySpec == null) { 4100 proxySpec = ""; 4101 } 4102 // Remove white spaces 4103 proxySpec = proxySpec.trim(); 4104 String data[] = proxySpec.split(":"); 4105 int proxyPort = 8080; 4106 if (data.length > 1) { 4107 try { 4108 proxyPort = Integer.parseInt(data[1]); 4109 } catch (NumberFormatException e) {} 4110 } 4111 exclusionList = exclusionList.trim(); 4112 4113 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 4114 if (!proxyProperties.isValid()) { 4115 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 4116 return; 4117 } 4118 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 4119 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 4120 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 4121 exclusionList); 4122 } 4123 4124 /** 4125 * Set the storage encryption request for a single admin. Returns the new total request 4126 * status (for all admins). 4127 */ 4128 @Override 4129 public int setStorageEncryption(ComponentName who, boolean encrypt) { 4130 if (!mHasFeature) { 4131 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4132 } 4133 Preconditions.checkNotNull(who, "ComponentName is null"); 4134 final int userHandle = UserHandle.getCallingUserId(); 4135 synchronized (this) { 4136 // Check for permissions 4137 // Only system user can set storage encryption 4138 if (userHandle != UserHandle.USER_SYSTEM) { 4139 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 4140 + UserHandle.getCallingUserId() + " is not permitted."); 4141 return 0; 4142 } 4143 4144 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4145 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 4146 4147 // Quick exit: If the filesystem does not support encryption, we can exit early. 4148 if (!isEncryptionSupported()) { 4149 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4150 } 4151 4152 // (1) Record the value for the admin so it's sticky 4153 if (ap.encryptionRequested != encrypt) { 4154 ap.encryptionRequested = encrypt; 4155 saveSettingsLocked(userHandle); 4156 } 4157 4158 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4159 // (2) Compute "max" for all admins 4160 boolean newRequested = false; 4161 final int N = policy.mAdminList.size(); 4162 for (int i = 0; i < N; i++) { 4163 newRequested |= policy.mAdminList.get(i).encryptionRequested; 4164 } 4165 4166 // Notify OS of new request 4167 setEncryptionRequested(newRequested); 4168 4169 // Return the new global request status 4170 return newRequested 4171 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4172 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4173 } 4174 } 4175 4176 /** 4177 * Get the current storage encryption request status for a given admin, or aggregate of all 4178 * active admins. 4179 */ 4180 @Override 4181 public boolean getStorageEncryption(ComponentName who, int userHandle) { 4182 if (!mHasFeature) { 4183 return false; 4184 } 4185 enforceCrossUserPermission(userHandle); 4186 synchronized (this) { 4187 // Check for permissions if a particular caller is specified 4188 if (who != null) { 4189 // When checking for a single caller, status is based on caller's request 4190 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 4191 return ap != null ? ap.encryptionRequested : false; 4192 } 4193 4194 // If no particular caller is specified, return the aggregate set of requests. 4195 // This is short circuited by returning true on the first hit. 4196 DevicePolicyData policy = getUserData(userHandle); 4197 final int N = policy.mAdminList.size(); 4198 for (int i = 0; i < N; i++) { 4199 if (policy.mAdminList.get(i).encryptionRequested) { 4200 return true; 4201 } 4202 } 4203 return false; 4204 } 4205 } 4206 4207 /** 4208 * Get the current encryption status of the device. 4209 */ 4210 @Override 4211 public int getStorageEncryptionStatus(int userHandle) { 4212 if (!mHasFeature) { 4213 // Ok to return current status. 4214 } 4215 enforceCrossUserPermission(userHandle); 4216 return getEncryptionStatus(); 4217 } 4218 4219 /** 4220 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 4221 */ 4222 private boolean isEncryptionSupported() { 4223 // Note, this can be implemented as 4224 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4225 // But is provided as a separate internal method if there's a faster way to do a 4226 // simple check for supported-or-not. 4227 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4228 } 4229 4230 /** 4231 * Hook to low-levels: Reporting the current status of encryption. 4232 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 4233 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 4234 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, or 4235 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 4236 */ 4237 private int getEncryptionStatus() { 4238 String status = mInjector.systemPropertiesGet("ro.crypto.state", "unsupported"); 4239 if ("encrypted".equalsIgnoreCase(status)) { 4240 final long token = mInjector.binderClearCallingIdentity(); 4241 try { 4242 return LockPatternUtils.isDeviceEncrypted() 4243 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4244 : DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 4245 } finally { 4246 mInjector.binderRestoreCallingIdentity(token); 4247 } 4248 } else if ("unencrypted".equalsIgnoreCase(status)) { 4249 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4250 } else { 4251 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4252 } 4253 } 4254 4255 /** 4256 * Hook to low-levels: If needed, record the new admin setting for encryption. 4257 */ 4258 private void setEncryptionRequested(boolean encrypt) { 4259 } 4260 4261 4262 /** 4263 * Set whether the screen capture is disabled for the user managed by the specified admin. 4264 */ 4265 @Override 4266 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 4267 if (!mHasFeature) { 4268 return; 4269 } 4270 Preconditions.checkNotNull(who, "ComponentName is null"); 4271 final int userHandle = UserHandle.getCallingUserId(); 4272 synchronized (this) { 4273 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4274 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4275 if (ap.disableScreenCapture != disabled) { 4276 ap.disableScreenCapture = disabled; 4277 saveSettingsLocked(userHandle); 4278 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 4279 } 4280 } 4281 } 4282 4283 /** 4284 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 4285 * active admin (if given admin is null). 4286 */ 4287 @Override 4288 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 4289 if (!mHasFeature) { 4290 return false; 4291 } 4292 synchronized (this) { 4293 if (who != null) { 4294 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4295 return (admin != null) ? admin.disableScreenCapture : false; 4296 } 4297 4298 DevicePolicyData policy = getUserData(userHandle); 4299 final int N = policy.mAdminList.size(); 4300 for (int i = 0; i < N; i++) { 4301 ActiveAdmin admin = policy.mAdminList.get(i); 4302 if (admin.disableScreenCapture) { 4303 return true; 4304 } 4305 } 4306 return false; 4307 } 4308 } 4309 4310 private void updateScreenCaptureDisabledInWindowManager(int userHandle, boolean disabled) { 4311 long ident = mInjector.binderClearCallingIdentity(); 4312 try { 4313 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 4314 } catch (RemoteException e) { 4315 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 4316 } finally { 4317 mInjector.binderRestoreCallingIdentity(ident); 4318 } 4319 } 4320 4321 /** 4322 * Set whether auto time is required by the specified admin (must be device owner). 4323 */ 4324 @Override 4325 public void setAutoTimeRequired(ComponentName who, boolean required) { 4326 if (!mHasFeature) { 4327 return; 4328 } 4329 Preconditions.checkNotNull(who, "ComponentName is null"); 4330 final int userHandle = UserHandle.getCallingUserId(); 4331 synchronized (this) { 4332 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4333 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4334 if (admin.requireAutoTime != required) { 4335 admin.requireAutoTime = required; 4336 saveSettingsLocked(userHandle); 4337 } 4338 } 4339 4340 // Turn AUTO_TIME on in settings if it is required 4341 if (required) { 4342 long ident = mInjector.binderClearCallingIdentity(); 4343 try { 4344 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 4345 } finally { 4346 mInjector.binderRestoreCallingIdentity(ident); 4347 } 4348 } 4349 } 4350 4351 /** 4352 * Returns whether or not auto time is required by the device owner. 4353 */ 4354 @Override 4355 public boolean getAutoTimeRequired() { 4356 if (!mHasFeature) { 4357 return false; 4358 } 4359 synchronized (this) { 4360 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4361 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 4362 } 4363 } 4364 4365 /** 4366 * Disables all device cameras according to the specified admin. 4367 */ 4368 @Override 4369 public void setCameraDisabled(ComponentName who, boolean disabled) { 4370 if (!mHasFeature) { 4371 return; 4372 } 4373 Preconditions.checkNotNull(who, "ComponentName is null"); 4374 final int userHandle = mInjector.userHandleGetCallingUserId(); 4375 synchronized (this) { 4376 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4377 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 4378 if (ap.disableCamera != disabled) { 4379 ap.disableCamera = disabled; 4380 saveSettingsLocked(userHandle); 4381 } 4382 } 4383 // Tell the user manager that the restrictions have changed. 4384 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 4385 synchronized (this) { 4386 if (isDeviceOwner(who, userHandle)) { 4387 mUserManagerInternal.updateEffectiveUserRestrictionsForAllUsersLR(); 4388 } else { 4389 mUserManagerInternal.updateEffectiveUserRestrictionsLR(userHandle); 4390 } 4391 } 4392 } 4393 } 4394 4395 /** 4396 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 4397 * active admins. 4398 */ 4399 @Override 4400 public boolean getCameraDisabled(ComponentName who, int userHandle) { 4401 if (!mHasFeature) { 4402 return false; 4403 } 4404 synchronized (this) { 4405 if (who != null) { 4406 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4407 return (admin != null) ? admin.disableCamera : false; 4408 } 4409 // First, see if DO has set it. If so, it's device-wide. 4410 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4411 if (deviceOwner != null && deviceOwner.disableCamera) { 4412 return true; 4413 } 4414 4415 // Then check each device admin on the user. 4416 DevicePolicyData policy = getUserData(userHandle); 4417 // Determine whether or not the device camera is disabled for any active admins. 4418 final int N = policy.mAdminList.size(); 4419 for (int i = 0; i < N; i++) { 4420 ActiveAdmin admin = policy.mAdminList.get(i); 4421 if (admin.disableCamera) { 4422 return true; 4423 } 4424 } 4425 return false; 4426 } 4427 } 4428 4429 /** 4430 * Selectively disable keyguard features. 4431 */ 4432 @Override 4433 public void setKeyguardDisabledFeatures(ComponentName who, int which) { 4434 if (!mHasFeature) { 4435 return; 4436 } 4437 Preconditions.checkNotNull(who, "ComponentName is null"); 4438 final int userHandle = UserHandle.getCallingUserId(); 4439 if (isManagedProfile(userHandle)) { 4440 which = which & PROFILE_KEYGUARD_FEATURES; 4441 } 4442 synchronized (this) { 4443 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4444 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4445 if (ap.disabledKeyguardFeatures != which) { 4446 ap.disabledKeyguardFeatures = which; 4447 saveSettingsLocked(userHandle); 4448 } 4449 } 4450 } 4451 4452 /** 4453 * Gets the disabled state for features in keyguard for the given admin, 4454 * or the aggregate of all active admins if who is null. 4455 */ 4456 @Override 4457 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 4458 if (!mHasFeature) { 4459 return 0; 4460 } 4461 enforceCrossUserPermission(userHandle); 4462 long ident = mInjector.binderClearCallingIdentity(); 4463 try { 4464 synchronized (this) { 4465 if (who != null) { 4466 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4467 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 4468 } 4469 4470 UserInfo user = mUserManager.getUserInfo(userHandle); 4471 final List<UserInfo> profiles; 4472 if (user.isManagedProfile()) { 4473 // If we are being asked about a managed profile just return 4474 // keyguard features disabled by admins in the profile. 4475 profiles = new ArrayList<UserInfo>(1); 4476 profiles.add(user); 4477 } else { 4478 // Otherwise return those set by admins in the user 4479 // and its profiles. 4480 profiles = mUserManager.getProfiles(userHandle); 4481 } 4482 4483 // Determine which keyguard features are disabled by any active admin. 4484 int which = 0; 4485 for (UserInfo userInfo : profiles) { 4486 DevicePolicyData policy = getUserData(userInfo.id); 4487 final int N = policy.mAdminList.size(); 4488 for (int i = 0; i < N; i++) { 4489 ActiveAdmin admin = policy.mAdminList.get(i); 4490 if (userInfo.id == userHandle || !userInfo.isManagedProfile()) { 4491 // If we are being asked explictly about this user 4492 // return all disabled features even if its a managed profile. 4493 which |= admin.disabledKeyguardFeatures; 4494 } else { 4495 // Otherwise a managed profile is only allowed to disable 4496 // some features on the parent user. 4497 which |= (admin.disabledKeyguardFeatures 4498 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 4499 } 4500 } 4501 } 4502 return which; 4503 } 4504 } finally { 4505 mInjector.binderRestoreCallingIdentity(ident); 4506 } 4507 } 4508 4509 @Override 4510 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 4511 if (!mHasFeature) { 4512 return false; 4513 } 4514 if (admin == null 4515 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 4516 throw new IllegalArgumentException("Invalid component " + admin 4517 + " for device owner"); 4518 } 4519 synchronized (this) { 4520 enforceCanSetDeviceOwner(userId); 4521 4522 // Shutting down backup manager service permanently. 4523 long ident = mInjector.binderClearCallingIdentity(); 4524 try { 4525 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, false); 4526 } catch (RemoteException e) { 4527 throw new IllegalStateException("Failed deactivating backup service.", e); 4528 } finally { 4529 mInjector.binderRestoreCallingIdentity(ident); 4530 } 4531 4532 mOwners.setDeviceOwner(admin, ownerName, userId); 4533 mOwners.writeDeviceOwner(); 4534 updateDeviceOwnerLocked(); 4535 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 4536 4537 ident = mInjector.binderClearCallingIdentity(); 4538 try { 4539 // TODO Send to system too? 4540 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 4541 } finally { 4542 mInjector.binderRestoreCallingIdentity(ident); 4543 } 4544 return true; 4545 } 4546 } 4547 4548 public boolean isDeviceOwner(ComponentName who, int userId) { 4549 synchronized (this) { 4550 return mOwners.hasDeviceOwner() 4551 && mOwners.getDeviceOwnerUserId() == userId 4552 && mOwners.getDeviceOwnerComponent().equals(who); 4553 } 4554 } 4555 4556 public boolean isProfileOwner(ComponentName who, int userId) { 4557 final ComponentName profileOwner = getProfileOwner(userId); 4558 return who != null && who.equals(profileOwner); 4559 } 4560 4561 @Override 4562 public ComponentName getDeviceOwner() { 4563 if (!mHasFeature) { 4564 return null; 4565 } 4566 synchronized (this) { 4567 return mOwners.getDeviceOwnerComponent(); 4568 } 4569 } 4570 4571 @Override 4572 public String getDeviceOwnerName() { 4573 if (!mHasFeature) { 4574 return null; 4575 } 4576 // TODO: Do we really need it? getDeviceOwner() doesn't require it. 4577 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4578 synchronized (this) { 4579 if (!mOwners.hasDeviceOwner()) { 4580 return null; 4581 } 4582 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 4583 // Should setDeviceOwner/ProfileOwner still take a name? 4584 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 4585 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 4586 } 4587 } 4588 4589 // Returns the active device owner or null if there is no device owner. 4590 @VisibleForTesting 4591 ActiveAdmin getDeviceOwnerAdminLocked() { 4592 ComponentName component = getDeviceOwner(); 4593 if (component == null) { 4594 return null; 4595 } 4596 4597 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 4598 final int n = policy.mAdminList.size(); 4599 for (int i = 0; i < n; i++) { 4600 ActiveAdmin admin = policy.mAdminList.get(i); 4601 if (component.equals(admin.info.getComponent())) { 4602 return admin; 4603 } 4604 } 4605 return null; 4606 } 4607 4608 @Override 4609 public void clearDeviceOwner(String packageName) { 4610 Preconditions.checkNotNull(packageName, "packageName is null"); 4611 final int callingUid = mInjector.binderGetCallingUid(); 4612 try { 4613 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 4614 if (uid != callingUid) { 4615 throw new SecurityException("Invalid packageName"); 4616 } 4617 } catch (NameNotFoundException e) { 4618 throw new SecurityException(e); 4619 } 4620 if (!mOwners.hasDeviceOwner() || !getDeviceOwner().getPackageName().equals(packageName) 4621 || (mOwners.getDeviceOwnerUserId() != UserHandle.getUserId(callingUid))) { 4622 throw new SecurityException("clearDeviceOwner can only be called by the device owner"); 4623 } 4624 synchronized (this) { 4625 clearUserPoliciesLocked(new UserHandle(UserHandle.USER_SYSTEM)); 4626 4627 mOwners.clearDeviceOwner(); 4628 mOwners.writeDeviceOwner(); 4629 updateDeviceOwnerLocked(); 4630 // Reactivate backup service. 4631 long ident = mInjector.binderClearCallingIdentity(); 4632 try { 4633 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 4634 } catch (RemoteException e) { 4635 throw new IllegalStateException("Failed reactivating backup service.", e); 4636 } finally { 4637 mInjector.binderRestoreCallingIdentity(ident); 4638 } 4639 } 4640 } 4641 4642 @Override 4643 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 4644 if (!mHasFeature) { 4645 return false; 4646 } 4647 if (who == null 4648 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 4649 throw new IllegalArgumentException("Component " + who 4650 + " not installed for userId:" + userHandle); 4651 } 4652 synchronized (this) { 4653 enforceCanSetProfileOwner(userHandle); 4654 mOwners.setProfileOwner(who, ownerName, userHandle); 4655 mOwners.writeProfileOwner(userHandle); 4656 return true; 4657 } 4658 } 4659 4660 @Override 4661 public void clearProfileOwner(ComponentName who) { 4662 if (!mHasFeature) { 4663 return; 4664 } 4665 UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 4666 // Check if this is the profile owner who is calling 4667 final ActiveAdmin admin = 4668 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4669 synchronized (this) { 4670 admin.userRestrictions = null; 4671 clearUserPoliciesLocked(callingUser); 4672 final int userId = callingUser.getIdentifier(); 4673 mOwners.removeProfileOwner(userId); 4674 mOwners.writeProfileOwner(userId); 4675 } 4676 } 4677 4678 @Override 4679 public boolean setDeviceOwnerLockScreenInfo(ComponentName who, String info) { 4680 Preconditions.checkNotNull(who, "ComponentName is null"); 4681 if (!mHasFeature) { 4682 return false; 4683 } 4684 4685 synchronized (this) { 4686 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4687 long token = mInjector.binderClearCallingIdentity(); 4688 try { 4689 new LockPatternUtils(mContext).setDeviceOwnerInfo(info); 4690 } finally { 4691 mInjector.binderRestoreCallingIdentity(token); 4692 } 4693 return true; 4694 } 4695 } 4696 4697 @Override 4698 public String getDeviceOwnerLockScreenInfo() { 4699 return new LockPatternUtils(mContext).getDeviceOwnerInfo(); 4700 } 4701 4702 private void clearUserPoliciesLocked(UserHandle userHandle) { 4703 int userId = userHandle.getIdentifier(); 4704 // Reset some of the user-specific policies 4705 DevicePolicyData policy = getUserData(userId); 4706 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 4707 policy.mDelegatedCertInstallerPackage = null; 4708 policy.mStatusBarDisabled = false; 4709 saveSettingsLocked(userId); 4710 4711 final long ident = mInjector.binderClearCallingIdentity(); 4712 try { 4713 mIPackageManager.updatePermissionFlagsForAllApps( 4714 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 4715 0 /* flagValues */, userHandle.getIdentifier()); 4716 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 4717 mUserManagerInternal.updateEffectiveUserRestrictionsLR(userHandle.getIdentifier()); 4718 } 4719 } catch (RemoteException re) { 4720 } finally { 4721 mInjector.binderRestoreCallingIdentity(ident); 4722 } 4723 } 4724 4725 @Override 4726 public boolean hasUserSetupCompleted() { 4727 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 4728 } 4729 4730 private boolean hasUserSetupCompleted(int userHandle) { 4731 if (!mHasFeature) { 4732 return true; 4733 } 4734 return getUserData(userHandle).mUserSetupComplete; 4735 } 4736 4737 @Override 4738 public void setProfileEnabled(ComponentName who) { 4739 if (!mHasFeature) { 4740 return; 4741 } 4742 Preconditions.checkNotNull(who, "ComponentName is null"); 4743 final int userHandle = UserHandle.getCallingUserId(); 4744 synchronized (this) { 4745 // Check if this is the profile owner who is calling 4746 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4747 int userId = UserHandle.getCallingUserId(); 4748 4749 long id = mInjector.binderClearCallingIdentity(); 4750 try { 4751 mUserManager.setUserEnabled(userId); 4752 UserInfo parent = mUserManager.getProfileParent(userId); 4753 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 4754 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 4755 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 4756 Intent.FLAG_RECEIVER_FOREGROUND); 4757 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 4758 } finally { 4759 mInjector.binderRestoreCallingIdentity(id); 4760 } 4761 } 4762 } 4763 4764 @Override 4765 public void setProfileName(ComponentName who, String profileName) { 4766 Preconditions.checkNotNull(who, "ComponentName is null"); 4767 int userId = UserHandle.getCallingUserId(); 4768 // Check if this is the profile owner (includes device owner). 4769 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4770 4771 long id = mInjector.binderClearCallingIdentity(); 4772 try { 4773 mUserManager.setUserName(userId, profileName); 4774 } finally { 4775 mInjector.binderRestoreCallingIdentity(id); 4776 } 4777 } 4778 4779 @Override 4780 public ComponentName getProfileOwner(int userHandle) { 4781 if (!mHasFeature) { 4782 return null; 4783 } 4784 4785 synchronized (this) { 4786 return mOwners.getProfileOwnerComponent(userHandle); 4787 } 4788 } 4789 4790 // Returns the active profile owner for this user or null if the current user has no 4791 // profile owner. 4792 @VisibleForTesting 4793 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 4794 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 4795 if (profileOwner == null) { 4796 return null; 4797 } 4798 DevicePolicyData policy = getUserData(userHandle); 4799 final int n = policy.mAdminList.size(); 4800 for (int i = 0; i < n; i++) { 4801 ActiveAdmin admin = policy.mAdminList.get(i); 4802 if (profileOwner.equals(admin.info.getComponent())) { 4803 return admin; 4804 } 4805 } 4806 return null; 4807 } 4808 4809 @Override 4810 public String getProfileOwnerName(int userHandle) { 4811 if (!mHasFeature) { 4812 return null; 4813 } 4814 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4815 ComponentName profileOwner = getProfileOwner(userHandle); 4816 if (profileOwner == null) { 4817 return null; 4818 } 4819 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 4820 } 4821 4822 /** 4823 * Canonical name for a given package. 4824 */ 4825 private String getApplicationLabel(String packageName, int userHandle) { 4826 long token = mInjector.binderClearCallingIdentity(); 4827 try { 4828 final Context userContext; 4829 try { 4830 UserHandle handle = new UserHandle(userHandle); 4831 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 4832 } catch (PackageManager.NameNotFoundException nnfe) { 4833 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 4834 return null; 4835 } 4836 ApplicationInfo appInfo = userContext.getApplicationInfo(); 4837 CharSequence result = null; 4838 if (appInfo != null) { 4839 PackageManager pm = userContext.getPackageManager(); 4840 result = pm.getApplicationLabel(appInfo); 4841 } 4842 return result != null ? result.toString() : null; 4843 } finally { 4844 mInjector.binderRestoreCallingIdentity(token); 4845 } 4846 } 4847 4848 /** 4849 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4850 * permission. 4851 * The profile owner can only be set before the user setup phase has completed, 4852 * except for: 4853 * - SYSTEM_UID 4854 * - adb if there are not accounts. 4855 */ 4856 private void enforceCanSetProfileOwner(int userHandle) { 4857 UserInfo info = mUserManager.getUserInfo(userHandle); 4858 if (info == null) { 4859 // User doesn't exist. 4860 throw new IllegalArgumentException( 4861 "Attempted to set profile owner for invalid userId: " + userHandle); 4862 } 4863 if (info.isGuest()) { 4864 throw new IllegalStateException("Cannot set a profile owner on a guest"); 4865 } 4866 if (mOwners.hasProfileOwner(userHandle)) { 4867 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 4868 + "is already set."); 4869 } 4870 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 4871 throw new IllegalStateException("Trying to set the profile owner, but the user " 4872 + "already has a device owner."); 4873 } 4874 int callingUid = mInjector.binderGetCallingUid(); 4875 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 4876 if (hasUserSetupCompleted(userHandle) && 4877 AccountManager.get(mContext).getAccountsAsUser(userHandle).length > 0) { 4878 throw new IllegalStateException("Not allowed to set the profile owner because " 4879 + "there are already some accounts on the profile"); 4880 } 4881 return; 4882 } 4883 mContext.enforceCallingOrSelfPermission( 4884 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 4885 if (hasUserSetupCompleted(userHandle) 4886 && UserHandle.getAppId(callingUid) != Process.SYSTEM_UID) { 4887 throw new IllegalStateException("Cannot set the profile owner on a user which is " 4888 + "already set-up"); 4889 } 4890 } 4891 4892 /** 4893 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4894 * permission. 4895 * The device owner can only be set before the setup phase of the primary user has completed, 4896 * except for adb if no accounts or additional users are present on the device. 4897 */ 4898 private void enforceCanSetDeviceOwner(int userId) { 4899 if (mOwners.hasDeviceOwner()) { 4900 throw new IllegalStateException("Trying to set the device owner, but device owner " 4901 + "is already set."); 4902 } 4903 if (mOwners.hasProfileOwner(userId)) { 4904 throw new IllegalStateException("Trying to set the device owner, but the user already " 4905 + "has a profile owner."); 4906 } 4907 if (!mUserManager.isUserRunning(new UserHandle(userId))) { 4908 throw new IllegalStateException("User not running: " + userId); 4909 } 4910 4911 int callingUid = mInjector.binderGetCallingUid(); 4912 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 4913 if (!hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 4914 return; 4915 } 4916 // STOPSHIP Do proper check in split user mode 4917 if (!mInjector.userManagerIsSplitSystemUser()) { 4918 if (mUserManager.getUserCount() > 1) { 4919 throw new IllegalStateException( 4920 "Not allowed to set the device owner because there " 4921 + "are already several users on the device"); 4922 } 4923 if (AccountManager.get(mContext).getAccounts().length > 0) { 4924 throw new IllegalStateException( 4925 "Not allowed to set the device owner because there " 4926 + "are already some accounts on the device"); 4927 } 4928 } 4929 return; 4930 } 4931 // STOPSHIP check the caller UID with userId 4932 4933 mContext.enforceCallingOrSelfPermission( 4934 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 4935 // STOPSHIP Do proper check in split user mode 4936 if (!mInjector.userManagerIsSplitSystemUser()) { 4937 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 4938 throw new IllegalStateException("Cannot set the device owner if the device is " 4939 + "already set-up"); 4940 } 4941 } 4942 } 4943 4944 private void enforceCrossUserPermission(int userHandle) { 4945 if (userHandle < 0) { 4946 throw new IllegalArgumentException("Invalid userId " + userHandle); 4947 } 4948 final int callingUid = mInjector.binderGetCallingUid(); 4949 if (userHandle == UserHandle.getUserId(callingUid)) return; 4950 if (callingUid != Process.SYSTEM_UID && callingUid != 0) { 4951 mContext.enforceCallingOrSelfPermission( 4952 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 4953 + " INTERACT_ACROSS_USERS_FULL permission"); 4954 } 4955 } 4956 4957 private void enforceNotManagedProfile(int userHandle, String message) { 4958 if(isManagedProfile(userHandle)) { 4959 throw new SecurityException("You can not " + message + " for a managed profile. "); 4960 } 4961 } 4962 4963 private UserInfo getProfileParent(int userHandle) { 4964 long ident = mInjector.binderClearCallingIdentity(); 4965 try { 4966 return mUserManager.getProfileParent(userHandle); 4967 } finally { 4968 mInjector.binderRestoreCallingIdentity(ident); 4969 } 4970 } 4971 4972 private boolean isManagedProfile(int userHandle) { 4973 long ident = mInjector.binderClearCallingIdentity(); 4974 try { 4975 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 4976 } finally { 4977 mInjector.binderRestoreCallingIdentity(ident); 4978 } 4979 } 4980 4981 private void enableIfNecessary(String packageName, int userId) { 4982 try { 4983 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 4984 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 4985 userId); 4986 if (ai.enabledSetting 4987 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 4988 mIPackageManager.setApplicationEnabledSetting(packageName, 4989 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 4990 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 4991 } 4992 } catch (RemoteException e) { 4993 } 4994 } 4995 4996 @Override 4997 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 4998 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 4999 != PackageManager.PERMISSION_GRANTED) { 5000 5001 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 5002 + mInjector.binderGetCallingPid() 5003 + ", uid=" + mInjector.binderGetCallingUid()); 5004 return; 5005 } 5006 5007 final Printer p = new PrintWriterPrinter(pw); 5008 5009 synchronized (this) { 5010 p.println("Current Device Policy Manager state:"); 5011 mOwners.dump(" ", pw); 5012 int userCount = mUserData.size(); 5013 for (int u = 0; u < userCount; u++) { 5014 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 5015 p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 5016 final int N = policy.mAdminList.size(); 5017 for (int i=0; i<N; i++) { 5018 ActiveAdmin ap = policy.mAdminList.get(i); 5019 if (ap != null) { 5020 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 5021 pw.println(":"); 5022 ap.dump(" ", pw); 5023 } 5024 } 5025 if (!policy.mRemovingAdmins.isEmpty()) { 5026 p.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 5027 + policy.mRemovingAdmins); 5028 } 5029 5030 pw.println(" "); 5031 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 5032 } 5033 } 5034 } 5035 5036 @Override 5037 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 5038 ComponentName activity) { 5039 Preconditions.checkNotNull(who, "ComponentName is null"); 5040 final int userHandle = UserHandle.getCallingUserId(); 5041 synchronized (this) { 5042 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5043 5044 long id = mInjector.binderClearCallingIdentity(); 5045 try { 5046 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 5047 } catch (RemoteException re) { 5048 // Shouldn't happen 5049 } finally { 5050 mInjector.binderRestoreCallingIdentity(id); 5051 } 5052 } 5053 } 5054 5055 @Override 5056 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 5057 Preconditions.checkNotNull(who, "ComponentName is null"); 5058 final int userHandle = UserHandle.getCallingUserId(); 5059 synchronized (this) { 5060 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5061 5062 long id = mInjector.binderClearCallingIdentity(); 5063 try { 5064 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 5065 } catch (RemoteException re) { 5066 // Shouldn't happen 5067 } finally { 5068 mInjector.binderRestoreCallingIdentity(id); 5069 } 5070 } 5071 } 5072 5073 @Override 5074 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 5075 Preconditions.checkNotNull(who, "ComponentName is null"); 5076 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5077 synchronized (this) { 5078 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5079 5080 long id = mInjector.binderClearCallingIdentity(); 5081 try { 5082 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 5083 } finally { 5084 mInjector.binderRestoreCallingIdentity(id); 5085 } 5086 } 5087 } 5088 5089 @Override 5090 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 5091 PersistableBundle args) { 5092 if (!mHasFeature) { 5093 return; 5094 } 5095 Preconditions.checkNotNull(admin, "admin is null"); 5096 Preconditions.checkNotNull(agent, "agent is null"); 5097 final int userHandle = UserHandle.getCallingUserId(); 5098 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 5099 synchronized (this) { 5100 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 5101 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 5102 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 5103 saveSettingsLocked(userHandle); 5104 } 5105 } 5106 5107 @Override 5108 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 5109 ComponentName agent, int userHandle) { 5110 if (!mHasFeature) { 5111 return null; 5112 } 5113 Preconditions.checkNotNull(agent, "agent null"); 5114 enforceCrossUserPermission(userHandle); 5115 5116 synchronized (this) { 5117 final String componentName = agent.flattenToString(); 5118 if (admin != null) { 5119 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 5120 if (ap == null) return null; 5121 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 5122 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 5123 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 5124 result.add(trustAgentInfo.options); 5125 return result; 5126 } 5127 5128 // Return strictest policy for this user and profiles that are visible from this user. 5129 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 5130 List<PersistableBundle> result = null; 5131 5132 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 5133 // of the options. If any admin doesn't have options, discard options for the rest 5134 // and return null. 5135 boolean allAdminsHaveOptions = true; 5136 for (UserInfo userInfo : profiles) { 5137 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 5138 final int N = policy.mAdminList.size(); 5139 for (int i=0; i < N; i++) { 5140 final ActiveAdmin active = policy.mAdminList.get(i); 5141 final boolean disablesTrust = (active.disabledKeyguardFeatures 5142 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 5143 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 5144 if (info != null && info.options != null && !info.options.isEmpty()) { 5145 if (disablesTrust) { 5146 if (result == null) { 5147 result = new ArrayList<PersistableBundle>(); 5148 } 5149 result.add(info.options); 5150 } else { 5151 Log.w(LOG_TAG, "Ignoring admin " + active.info 5152 + " because it has trust options but doesn't declare " 5153 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 5154 } 5155 } else if (disablesTrust) { 5156 allAdminsHaveOptions = false; 5157 break; 5158 } 5159 } 5160 } 5161 return allAdminsHaveOptions ? result : null; 5162 } 5163 } 5164 5165 @Override 5166 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 5167 Preconditions.checkNotNull(who, "ComponentName is null"); 5168 synchronized (this) { 5169 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5170 5171 int userHandle = UserHandle.getCallingUserId(); 5172 DevicePolicyData userData = getUserData(userHandle); 5173 userData.mRestrictionsProvider = permissionProvider; 5174 saveSettingsLocked(userHandle); 5175 } 5176 } 5177 5178 @Override 5179 public ComponentName getRestrictionsProvider(int userHandle) { 5180 synchronized (this) { 5181 if (mInjector.binderGetCallingUid() != Process.SYSTEM_UID) { 5182 throw new SecurityException("Only the system can query the permission provider"); 5183 } 5184 DevicePolicyData userData = getUserData(userHandle); 5185 return userData != null ? userData.mRestrictionsProvider : null; 5186 } 5187 } 5188 5189 @Override 5190 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 5191 Preconditions.checkNotNull(who, "ComponentName is null"); 5192 int callingUserId = UserHandle.getCallingUserId(); 5193 synchronized (this) { 5194 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5195 5196 long id = mInjector.binderClearCallingIdentity(); 5197 try { 5198 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5199 if (parent == null) { 5200 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 5201 + "parent"); 5202 return; 5203 } 5204 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 5205 mIPackageManager.addCrossProfileIntentFilter( 5206 filter, who.getPackageName(), callingUserId, parent.id, 0); 5207 } 5208 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 5209 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 5210 parent.id, callingUserId, 0); 5211 } 5212 } catch (RemoteException re) { 5213 // Shouldn't happen 5214 } finally { 5215 mInjector.binderRestoreCallingIdentity(id); 5216 } 5217 } 5218 } 5219 5220 @Override 5221 public void clearCrossProfileIntentFilters(ComponentName who) { 5222 Preconditions.checkNotNull(who, "ComponentName is null"); 5223 int callingUserId = UserHandle.getCallingUserId(); 5224 synchronized (this) { 5225 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5226 long id = mInjector.binderClearCallingIdentity(); 5227 try { 5228 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5229 if (parent == null) { 5230 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 5231 + "parent"); 5232 return; 5233 } 5234 // Removing those that go from the managed profile to the parent. 5235 mIPackageManager.clearCrossProfileIntentFilters( 5236 callingUserId, who.getPackageName()); 5237 // And those that go from the parent to the managed profile. 5238 // If we want to support multiple managed profiles, we will have to only remove 5239 // those that have callingUserId as their target. 5240 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 5241 } catch (RemoteException re) { 5242 // Shouldn't happen 5243 } finally { 5244 mInjector.binderRestoreCallingIdentity(id); 5245 } 5246 } 5247 } 5248 5249 /** 5250 * @return true if all packages in enabledPackages are either in the list 5251 * permittedList or are a system app. 5252 */ 5253 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 5254 List<String> permittedList) { 5255 int userIdToCheck = UserHandle.getCallingUserId(); 5256 long id = mInjector.binderClearCallingIdentity(); 5257 try { 5258 // If we have an enabled packages list for a managed profile the packages 5259 // we should check are installed for the parent user. 5260 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 5261 if (user.isManagedProfile()) { 5262 userIdToCheck = user.profileGroupId; 5263 } 5264 5265 for (String enabledPackage : enabledPackages) { 5266 boolean systemService = false; 5267 try { 5268 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 5269 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 5270 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5271 } catch (RemoteException e) { 5272 Log.i(LOG_TAG, "Can't talk to package managed", e); 5273 } 5274 if (!systemService && !permittedList.contains(enabledPackage)) { 5275 return false; 5276 } 5277 } 5278 } finally { 5279 mInjector.binderRestoreCallingIdentity(id); 5280 } 5281 return true; 5282 } 5283 5284 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 5285 // Not using AccessibilityManager.getInstance because that guesses 5286 // at the user you require based on callingUid and caches for a given 5287 // process. 5288 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 5289 IAccessibilityManager service = iBinder == null 5290 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 5291 return new AccessibilityManager(mContext, service, userId); 5292 } 5293 5294 @Override 5295 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 5296 if (!mHasFeature) { 5297 return false; 5298 } 5299 Preconditions.checkNotNull(who, "ComponentName is null"); 5300 5301 if (packageList != null) { 5302 int userId = UserHandle.getCallingUserId(); 5303 List<AccessibilityServiceInfo> enabledServices = null; 5304 long id = mInjector.binderClearCallingIdentity(); 5305 try { 5306 UserInfo user = mUserManager.getUserInfo(userId); 5307 if (user.isManagedProfile()) { 5308 userId = user.profileGroupId; 5309 } 5310 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 5311 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 5312 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 5313 } finally { 5314 mInjector.binderRestoreCallingIdentity(id); 5315 } 5316 5317 if (enabledServices != null) { 5318 List<String> enabledPackages = new ArrayList<String>(); 5319 for (AccessibilityServiceInfo service : enabledServices) { 5320 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 5321 } 5322 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5323 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 5324 + "because it contains already enabled accesibility services."); 5325 return false; 5326 } 5327 } 5328 } 5329 5330 synchronized (this) { 5331 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5332 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5333 admin.permittedAccessiblityServices = packageList; 5334 saveSettingsLocked(UserHandle.getCallingUserId()); 5335 } 5336 return true; 5337 } 5338 5339 @Override 5340 public List getPermittedAccessibilityServices(ComponentName who) { 5341 if (!mHasFeature) { 5342 return null; 5343 } 5344 Preconditions.checkNotNull(who, "ComponentName is null"); 5345 5346 synchronized (this) { 5347 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5348 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5349 return admin.permittedAccessiblityServices; 5350 } 5351 } 5352 5353 @Override 5354 public List getPermittedAccessibilityServicesForUser(int userId) { 5355 if (!mHasFeature) { 5356 return null; 5357 } 5358 synchronized (this) { 5359 List<String> result = null; 5360 // If we have multiple profiles we return the intersection of the 5361 // permitted lists. This can happen in cases where we have a device 5362 // and profile owner. 5363 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5364 final int PROFILES_SIZE = profiles.size(); 5365 for (int i = 0; i < PROFILES_SIZE; ++i) { 5366 // Just loop though all admins, only device or profiles 5367 // owners can have permitted lists set. 5368 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5369 final int N = policy.mAdminList.size(); 5370 for (int j = 0; j < N; j++) { 5371 ActiveAdmin admin = policy.mAdminList.get(j); 5372 List<String> fromAdmin = admin.permittedAccessiblityServices; 5373 if (fromAdmin != null) { 5374 if (result == null) { 5375 result = new ArrayList<String>(fromAdmin); 5376 } else { 5377 result.retainAll(fromAdmin); 5378 } 5379 } 5380 } 5381 } 5382 5383 // If we have a permitted list add all system accessibility services. 5384 if (result != null) { 5385 long id = mInjector.binderClearCallingIdentity(); 5386 try { 5387 UserInfo user = mUserManager.getUserInfo(userId); 5388 if (user.isManagedProfile()) { 5389 userId = user.profileGroupId; 5390 } 5391 AccessibilityManager accessibilityManager = 5392 getAccessibilityManagerForUser(userId); 5393 List<AccessibilityServiceInfo> installedServices = 5394 accessibilityManager.getInstalledAccessibilityServiceList(); 5395 5396 if (installedServices != null) { 5397 for (AccessibilityServiceInfo service : installedServices) { 5398 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 5399 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5400 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5401 result.add(serviceInfo.packageName); 5402 } 5403 } 5404 } 5405 } finally { 5406 mInjector.binderRestoreCallingIdentity(id); 5407 } 5408 } 5409 5410 return result; 5411 } 5412 } 5413 5414 private boolean checkCallerIsCurrentUserOrProfile() { 5415 int callingUserId = UserHandle.getCallingUserId(); 5416 long token = mInjector.binderClearCallingIdentity(); 5417 try { 5418 UserInfo currentUser; 5419 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 5420 try { 5421 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5422 } catch (RemoteException e) { 5423 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 5424 return false; 5425 } 5426 5427 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 5428 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 5429 + "of a user that isn't the foreground user."); 5430 return false; 5431 } 5432 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 5433 Slog.e(LOG_TAG, "Cannot set permitted input methods " 5434 + "of a user that isn't the foreground user."); 5435 return false; 5436 } 5437 } finally { 5438 mInjector.binderRestoreCallingIdentity(token); 5439 } 5440 return true; 5441 } 5442 5443 @Override 5444 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 5445 if (!mHasFeature) { 5446 return false; 5447 } 5448 Preconditions.checkNotNull(who, "ComponentName is null"); 5449 5450 // TODO When InputMethodManager supports per user calls remove 5451 // this restriction. 5452 if (!checkCallerIsCurrentUserOrProfile()) { 5453 return false; 5454 } 5455 5456 if (packageList != null) { 5457 // InputMethodManager fetches input methods for current user. 5458 // So this can only be set when calling user is the current user 5459 // or parent is current user in case of managed profiles. 5460 InputMethodManager inputMethodManager = (InputMethodManager) mContext 5461 .getSystemService(Context.INPUT_METHOD_SERVICE); 5462 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 5463 5464 if (enabledImes != null) { 5465 List<String> enabledPackages = new ArrayList<String>(); 5466 for (InputMethodInfo ime : enabledImes) { 5467 enabledPackages.add(ime.getPackageName()); 5468 } 5469 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5470 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 5471 + "because it contains already enabled input method."); 5472 return false; 5473 } 5474 } 5475 } 5476 5477 synchronized (this) { 5478 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5479 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5480 admin.permittedInputMethods = packageList; 5481 saveSettingsLocked(UserHandle.getCallingUserId()); 5482 } 5483 return true; 5484 } 5485 5486 @Override 5487 public List getPermittedInputMethods(ComponentName who) { 5488 if (!mHasFeature) { 5489 return null; 5490 } 5491 Preconditions.checkNotNull(who, "ComponentName is null"); 5492 5493 synchronized (this) { 5494 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5495 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5496 return admin.permittedInputMethods; 5497 } 5498 } 5499 5500 @Override 5501 public List getPermittedInputMethodsForCurrentUser() { 5502 UserInfo currentUser; 5503 try { 5504 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5505 } catch (RemoteException e) { 5506 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 5507 // Activity managed is dead, just allow all IMEs 5508 return null; 5509 } 5510 5511 int userId = currentUser.id; 5512 synchronized (this) { 5513 List<String> result = null; 5514 // If we have multiple profiles we return the intersection of the 5515 // permitted lists. This can happen in cases where we have a device 5516 // and profile owner. 5517 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5518 final int PROFILES_SIZE = profiles.size(); 5519 for (int i = 0; i < PROFILES_SIZE; ++i) { 5520 // Just loop though all admins, only device or profiles 5521 // owners can have permitted lists set. 5522 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5523 final int N = policy.mAdminList.size(); 5524 for (int j = 0; j < N; j++) { 5525 ActiveAdmin admin = policy.mAdminList.get(j); 5526 List<String> fromAdmin = admin.permittedInputMethods; 5527 if (fromAdmin != null) { 5528 if (result == null) { 5529 result = new ArrayList<String>(fromAdmin); 5530 } else { 5531 result.retainAll(fromAdmin); 5532 } 5533 } 5534 } 5535 } 5536 5537 // If we have a permitted list add all system input methods. 5538 if (result != null) { 5539 InputMethodManager inputMethodManager = (InputMethodManager) mContext 5540 .getSystemService(Context.INPUT_METHOD_SERVICE); 5541 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 5542 long id = mInjector.binderClearCallingIdentity(); 5543 try { 5544 if (imes != null) { 5545 for (InputMethodInfo ime : imes) { 5546 ServiceInfo serviceInfo = ime.getServiceInfo(); 5547 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5548 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5549 result.add(serviceInfo.packageName); 5550 } 5551 } 5552 } 5553 } finally { 5554 mInjector.binderRestoreCallingIdentity(id); 5555 } 5556 } 5557 return result; 5558 } 5559 } 5560 5561 @Override 5562 public UserHandle createUser(ComponentName who, String name) { 5563 Preconditions.checkNotNull(who, "ComponentName is null"); 5564 synchronized (this) { 5565 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5566 5567 long id = mInjector.binderClearCallingIdentity(); 5568 try { 5569 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 5570 if (userInfo != null) { 5571 return userInfo.getUserHandle(); 5572 } 5573 return null; 5574 } finally { 5575 mInjector.binderRestoreCallingIdentity(id); 5576 } 5577 } 5578 } 5579 5580 @Override 5581 public UserHandle createAndInitializeUser(ComponentName who, String name, 5582 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 5583 UserHandle user = createUser(who, name); 5584 if (user == null) { 5585 return null; 5586 } 5587 long id = mInjector.binderClearCallingIdentity(); 5588 try { 5589 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 5590 5591 final int userHandle = user.getIdentifier(); 5592 try { 5593 // Install the profile owner if not present. 5594 if (!mIPackageManager.isPackageAvailable(profileOwnerPkg, userHandle)) { 5595 mIPackageManager.installExistingPackageAsUser(profileOwnerPkg, userHandle); 5596 } 5597 5598 // Start user in background. 5599 mInjector.getIActivityManager().startUserInBackground(userHandle); 5600 } catch (RemoteException e) { 5601 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 5602 } 5603 5604 setActiveAdmin(profileOwnerComponent, true, userHandle, adminExtras); 5605 setProfileOwner(profileOwnerComponent, ownerName, userHandle); 5606 return user; 5607 } finally { 5608 mInjector.binderRestoreCallingIdentity(id); 5609 } 5610 } 5611 5612 @Override 5613 public boolean removeUser(ComponentName who, UserHandle userHandle) { 5614 Preconditions.checkNotNull(who, "ComponentName is null"); 5615 synchronized (this) { 5616 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5617 5618 long id = mInjector.binderClearCallingIdentity(); 5619 try { 5620 return mUserManager.removeUser(userHandle.getIdentifier()); 5621 } finally { 5622 mInjector.binderRestoreCallingIdentity(id); 5623 } 5624 } 5625 } 5626 5627 @Override 5628 public boolean switchUser(ComponentName who, UserHandle userHandle) { 5629 Preconditions.checkNotNull(who, "ComponentName is null"); 5630 synchronized (this) { 5631 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5632 5633 long id = mInjector.binderClearCallingIdentity(); 5634 try { 5635 int userId = UserHandle.USER_SYSTEM; 5636 if (userHandle != null) { 5637 userId = userHandle.getIdentifier(); 5638 } 5639 return mInjector.getIActivityManager().switchUser(userId); 5640 } catch (RemoteException e) { 5641 Log.e(LOG_TAG, "Couldn't switch user", e); 5642 return false; 5643 } finally { 5644 mInjector.binderRestoreCallingIdentity(id); 5645 } 5646 } 5647 } 5648 5649 @Override 5650 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 5651 Preconditions.checkNotNull(who, "ComponentName is null"); 5652 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5653 5654 synchronized (this) { 5655 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5656 5657 long id = mInjector.binderClearCallingIdentity(); 5658 try { 5659 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 5660 // if no restrictions were saved, mUserManager.getApplicationRestrictions 5661 // returns null, but DPM method should return an empty Bundle as per JavaDoc 5662 return bundle != null ? bundle : Bundle.EMPTY; 5663 } finally { 5664 mInjector.binderRestoreCallingIdentity(id); 5665 } 5666 } 5667 } 5668 5669 // DO NOT call it while taking the "this" lock, which could cause a dead lock. 5670 @Override 5671 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 5672 Preconditions.checkNotNull(who, "ComponentName is null"); 5673 final int userHandle = mInjector.userHandleGetCallingUserId(); 5674 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 5675 synchronized (this) { 5676 ActiveAdmin activeAdmin = 5677 getActiveAdminForCallerLocked(who, 5678 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5679 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 5680 if (!isDeviceOwner && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) { 5681 throw new SecurityException( 5682 "Profile owners cannot set user restriction " + key); 5683 } 5684 if (IMMUTABLE_USER_RESTRICTIONS.contains(key)) { 5685 throw new SecurityException("User restriction " + key + " cannot be changed"); 5686 } 5687 5688 final long id = mInjector.binderClearCallingIdentity(); 5689 try { 5690 // Save the restriction to ActiveAdmin. 5691 // TODO When DO sets a restriction, it'll always be treated as device-wide. 5692 // If there'll be a policy that can be set by both, we'll need scoping support, 5693 // and need to have another Bundle in DO active admin to hold restrictions as 5694 // PO. 5695 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 5696 saveSettingsLocked(userHandle); 5697 5698 // Tell UserManager the new value. 5699 if (isDeviceOwner) { 5700 mUserManagerInternal.updateEffectiveUserRestrictionsForAllUsersLR(); 5701 } else { 5702 mUserManagerInternal.updateEffectiveUserRestrictionsLR(userHandle); 5703 } 5704 } finally { 5705 mInjector.binderRestoreCallingIdentity(id); 5706 } 5707 5708 sendChangedNotification(userHandle); 5709 } 5710 } 5711 } 5712 5713 @Override 5714 public Bundle getUserRestrictions(ComponentName who) { 5715 Preconditions.checkNotNull(who, "ComponentName is null"); 5716 synchronized (this) { 5717 final ActiveAdmin activeAdmin = 5718 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5719 return activeAdmin.userRestrictions; 5720 } 5721 } 5722 5723 @Override 5724 public boolean setApplicationHidden(ComponentName who, String packageName, 5725 boolean hidden) { 5726 Preconditions.checkNotNull(who, "ComponentName is null"); 5727 int callingUserId = UserHandle.getCallingUserId(); 5728 synchronized (this) { 5729 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5730 5731 long id = mInjector.binderClearCallingIdentity(); 5732 try { 5733 return mIPackageManager.setApplicationHiddenSettingAsUser( 5734 packageName, hidden, callingUserId); 5735 } catch (RemoteException re) { 5736 // shouldn't happen 5737 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 5738 } finally { 5739 mInjector.binderRestoreCallingIdentity(id); 5740 } 5741 return false; 5742 } 5743 } 5744 5745 @Override 5746 public boolean isApplicationHidden(ComponentName who, String packageName) { 5747 Preconditions.checkNotNull(who, "ComponentName is null"); 5748 int callingUserId = UserHandle.getCallingUserId(); 5749 synchronized (this) { 5750 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5751 5752 long id = mInjector.binderClearCallingIdentity(); 5753 try { 5754 return mIPackageManager.getApplicationHiddenSettingAsUser( 5755 packageName, callingUserId); 5756 } catch (RemoteException re) { 5757 // shouldn't happen 5758 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 5759 } finally { 5760 mInjector.binderRestoreCallingIdentity(id); 5761 } 5762 return false; 5763 } 5764 } 5765 5766 @Override 5767 public void enableSystemApp(ComponentName who, String packageName) { 5768 Preconditions.checkNotNull(who, "ComponentName is null"); 5769 synchronized (this) { 5770 // This API can only be called by an active device admin, 5771 // so try to retrieve it to check that the caller is one. 5772 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5773 5774 int userId = UserHandle.getCallingUserId(); 5775 long id = mInjector.binderClearCallingIdentity(); 5776 5777 try { 5778 if (VERBOSE_LOG) { 5779 Slog.v(LOG_TAG, "installing " + packageName + " for " 5780 + userId); 5781 } 5782 5783 UserManager um = UserManager.get(mContext); 5784 UserInfo primaryUser = um.getProfileParent(userId); 5785 5786 // Call did not come from a managed profile 5787 if (primaryUser == null) { 5788 primaryUser = um.getUserInfo(userId); 5789 } 5790 5791 if (!isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 5792 throw new IllegalArgumentException("Only system apps can be enabled this way."); 5793 } 5794 5795 // Install the app. 5796 mIPackageManager.installExistingPackageAsUser(packageName, userId); 5797 5798 } catch (RemoteException re) { 5799 // shouldn't happen 5800 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 5801 } finally { 5802 mInjector.binderRestoreCallingIdentity(id); 5803 } 5804 } 5805 } 5806 5807 @Override 5808 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 5809 Preconditions.checkNotNull(who, "ComponentName is null"); 5810 synchronized (this) { 5811 // This API can only be called by an active device admin, 5812 // so try to retrieve it to check that the caller is one. 5813 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5814 5815 int userId = UserHandle.getCallingUserId(); 5816 long id = mInjector.binderClearCallingIdentity(); 5817 5818 try { 5819 UserManager um = UserManager.get(mContext); 5820 UserInfo primaryUser = um.getProfileParent(userId); 5821 5822 // Call did not come from a managed profile. 5823 if (primaryUser == null) { 5824 primaryUser = um.getUserInfo(userId); 5825 } 5826 5827 List<ResolveInfo> activitiesToEnable = mIPackageManager.queryIntentActivities( 5828 intent, 5829 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 5830 0, // no flags 5831 primaryUser.id); 5832 5833 if (VERBOSE_LOG) { 5834 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 5835 } 5836 int numberOfAppsInstalled = 0; 5837 if (activitiesToEnable != null) { 5838 for (ResolveInfo info : activitiesToEnable) { 5839 if (info.activityInfo != null) { 5840 String packageName = info.activityInfo.packageName; 5841 if (isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 5842 numberOfAppsInstalled++; 5843 mIPackageManager.installExistingPackageAsUser(packageName, userId); 5844 } else { 5845 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 5846 + " system app"); 5847 } 5848 } 5849 } 5850 } 5851 return numberOfAppsInstalled; 5852 } catch (RemoteException e) { 5853 // shouldn't happen 5854 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 5855 return 0; 5856 } finally { 5857 mInjector.binderRestoreCallingIdentity(id); 5858 } 5859 } 5860 } 5861 5862 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 5863 throws RemoteException { 5864 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 5865 userId); 5866 if (appInfo == null) { 5867 throw new IllegalArgumentException("The application " + packageName + 5868 " is not present on this device"); 5869 } 5870 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5871 } 5872 5873 @Override 5874 public void setAccountManagementDisabled(ComponentName who, String accountType, 5875 boolean disabled) { 5876 if (!mHasFeature) { 5877 return; 5878 } 5879 Preconditions.checkNotNull(who, "ComponentName is null"); 5880 synchronized (this) { 5881 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5882 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5883 if (disabled) { 5884 ap.accountTypesWithManagementDisabled.add(accountType); 5885 } else { 5886 ap.accountTypesWithManagementDisabled.remove(accountType); 5887 } 5888 saveSettingsLocked(UserHandle.getCallingUserId()); 5889 } 5890 } 5891 5892 @Override 5893 public String[] getAccountTypesWithManagementDisabled() { 5894 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 5895 } 5896 5897 @Override 5898 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 5899 enforceCrossUserPermission(userId); 5900 if (!mHasFeature) { 5901 return null; 5902 } 5903 synchronized (this) { 5904 DevicePolicyData policy = getUserData(userId); 5905 final int N = policy.mAdminList.size(); 5906 ArraySet<String> resultSet = new ArraySet<>(); 5907 for (int i = 0; i < N; i++) { 5908 ActiveAdmin admin = policy.mAdminList.get(i); 5909 resultSet.addAll(admin.accountTypesWithManagementDisabled); 5910 } 5911 return resultSet.toArray(new String[resultSet.size()]); 5912 } 5913 } 5914 5915 @Override 5916 public void setUninstallBlocked(ComponentName who, String packageName, 5917 boolean uninstallBlocked) { 5918 Preconditions.checkNotNull(who, "ComponentName is null"); 5919 final int userId = UserHandle.getCallingUserId(); 5920 synchronized (this) { 5921 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5922 5923 long id = mInjector.binderClearCallingIdentity(); 5924 try { 5925 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 5926 } catch (RemoteException re) { 5927 // Shouldn't happen. 5928 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 5929 } finally { 5930 mInjector.binderRestoreCallingIdentity(id); 5931 } 5932 } 5933 } 5934 5935 @Override 5936 public boolean isUninstallBlocked(ComponentName who, String packageName) { 5937 // This function should return true if and only if the package is blocked by 5938 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 5939 // when the package is a system app, or when it is an active device admin. 5940 final int userId = UserHandle.getCallingUserId(); 5941 5942 synchronized (this) { 5943 if (who != null) { 5944 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5945 } 5946 5947 long id = mInjector.binderClearCallingIdentity(); 5948 try { 5949 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 5950 } catch (RemoteException re) { 5951 // Shouldn't happen. 5952 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 5953 } finally { 5954 mInjector.binderRestoreCallingIdentity(id); 5955 } 5956 } 5957 return false; 5958 } 5959 5960 @Override 5961 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 5962 if (!mHasFeature) { 5963 return; 5964 } 5965 Preconditions.checkNotNull(who, "ComponentName is null"); 5966 synchronized (this) { 5967 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5968 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5969 if (admin.disableCallerId != disabled) { 5970 admin.disableCallerId = disabled; 5971 saveSettingsLocked(UserHandle.getCallingUserId()); 5972 } 5973 } 5974 } 5975 5976 @Override 5977 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 5978 if (!mHasFeature) { 5979 return false; 5980 } 5981 Preconditions.checkNotNull(who, "ComponentName is null"); 5982 synchronized (this) { 5983 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5984 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5985 return admin.disableCallerId; 5986 } 5987 } 5988 5989 @Override 5990 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 5991 // TODO: Should there be a check to make sure this relationship is within a profile group? 5992 //enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 5993 synchronized (this) { 5994 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 5995 return (admin != null) ? admin.disableCallerId : false; 5996 } 5997 } 5998 5999 @Override 6000 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 6001 Intent originalIntent) { 6002 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent( 6003 actualLookupKey, actualContactId, originalIntent); 6004 final int callingUserId = UserHandle.getCallingUserId(); 6005 6006 final long ident = mInjector.binderClearCallingIdentity(); 6007 try { 6008 synchronized (this) { 6009 final int managedUserId = getManagedUserId(callingUserId); 6010 if (managedUserId < 0) { 6011 return; 6012 } 6013 if (getCrossProfileCallerIdDisabledForUser(managedUserId)) { 6014 if (VERBOSE_LOG) { 6015 Log.v(LOG_TAG, 6016 "Cross-profile contacts access disabled for user " + managedUserId); 6017 } 6018 return; 6019 } 6020 ContactsInternal.startQuickContactWithErrorToastForUser( 6021 mContext, intent, new UserHandle(managedUserId)); 6022 } 6023 } finally { 6024 mInjector.binderRestoreCallingIdentity(ident); 6025 } 6026 } 6027 6028 /** 6029 * @return the user ID of the managed user that is linked to the current user, if any. 6030 * Otherwise -1. 6031 */ 6032 public int getManagedUserId(int callingUserId) { 6033 if (VERBOSE_LOG) { 6034 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 6035 } 6036 6037 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 6038 if (ui.id == callingUserId || !ui.isManagedProfile()) { 6039 continue; // Caller user self, or not a managed profile. Skip. 6040 } 6041 if (VERBOSE_LOG) { 6042 Log.v(LOG_TAG, "Managed user=" + ui.id); 6043 } 6044 return ui.id; 6045 } 6046 if (VERBOSE_LOG) { 6047 Log.v(LOG_TAG, "Managed user not found."); 6048 } 6049 return -1; 6050 } 6051 6052 @Override 6053 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 6054 if (!mHasFeature) { 6055 return; 6056 } 6057 Preconditions.checkNotNull(who, "ComponentName is null"); 6058 synchronized (this) { 6059 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6060 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6061 if (admin.disableBluetoothContactSharing != disabled) { 6062 admin.disableBluetoothContactSharing = disabled; 6063 saveSettingsLocked(UserHandle.getCallingUserId()); 6064 } 6065 } 6066 } 6067 6068 @Override 6069 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 6070 if (!mHasFeature) { 6071 return false; 6072 } 6073 Preconditions.checkNotNull(who, "ComponentName is null"); 6074 synchronized (this) { 6075 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6076 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6077 return admin.disableBluetoothContactSharing; 6078 } 6079 } 6080 6081 @Override 6082 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 6083 // TODO: Should there be a check to make sure this relationship is 6084 // within a profile group? 6085 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 6086 synchronized (this) { 6087 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 6088 return (admin != null) ? admin.disableBluetoothContactSharing : false; 6089 } 6090 } 6091 6092 /** 6093 * Sets which packages may enter lock task mode. 6094 * 6095 * This function can only be called by the device owner. 6096 * @param packages The list of packages allowed to enter lock task mode. 6097 */ 6098 @Override 6099 public void setLockTaskPackages(ComponentName who, String[] packages) 6100 throws SecurityException { 6101 Preconditions.checkNotNull(who, "ComponentName is null"); 6102 synchronized (this) { 6103 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6104 6105 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6106 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 6107 } 6108 } 6109 6110 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 6111 DevicePolicyData policy = getUserData(userHandle); 6112 policy.mLockTaskPackages = packages; 6113 6114 // Store the settings persistently. 6115 saveSettingsLocked(userHandle); 6116 updateLockTaskPackagesLocked(packages, userHandle); 6117 } 6118 6119 /** 6120 * This function returns the list of components allowed to start the task lock mode. 6121 */ 6122 @Override 6123 public String[] getLockTaskPackages(ComponentName who) { 6124 Preconditions.checkNotNull(who, "ComponentName is null"); 6125 synchronized (this) { 6126 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6127 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6128 final List<String> packages = getLockTaskPackagesLocked(userHandle); 6129 return packages.toArray(new String[packages.size()]); 6130 } 6131 } 6132 6133 private List<String> getLockTaskPackagesLocked(int userHandle) { 6134 final DevicePolicyData policy = getUserData(userHandle); 6135 return policy.mLockTaskPackages; 6136 } 6137 6138 /** 6139 * This function lets the caller know whether the given package is allowed to start the 6140 * lock task mode. 6141 * @param pkg The package to check 6142 */ 6143 @Override 6144 public boolean isLockTaskPermitted(String pkg) { 6145 // Get current user's devicepolicy 6146 int uid = mInjector.binderGetCallingUid(); 6147 int userHandle = UserHandle.getUserId(uid); 6148 DevicePolicyData policy = getUserData(userHandle); 6149 synchronized (this) { 6150 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 6151 String lockTaskPackage = policy.mLockTaskPackages.get(i); 6152 6153 // If the given package equals one of the packages stored our list, 6154 // we allow this package to start lock task mode. 6155 if (lockTaskPackage.equals(pkg)) { 6156 return true; 6157 } 6158 } 6159 } 6160 return false; 6161 } 6162 6163 @Override 6164 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 6165 if (mInjector.binderGetCallingUid() != Process.SYSTEM_UID) { 6166 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 6167 } 6168 synchronized (this) { 6169 final DevicePolicyData policy = getUserData(userHandle); 6170 Bundle adminExtras = new Bundle(); 6171 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 6172 for (ActiveAdmin admin : policy.mAdminList) { 6173 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 6174 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 6175 if (ownsDevice || ownsProfile) { 6176 if (isEnabled) { 6177 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 6178 adminExtras, null); 6179 } else { 6180 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 6181 } 6182 } 6183 } 6184 } 6185 } 6186 6187 @Override 6188 public void setGlobalSetting(ComponentName who, String setting, String value) { 6189 Preconditions.checkNotNull(who, "ComponentName is null"); 6190 6191 synchronized (this) { 6192 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6193 6194 // Some settings are no supported any more. However we do not want to throw a 6195 // SecurityException to avoid breaking apps. 6196 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 6197 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 6198 return; 6199 } 6200 6201 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 6202 throw new SecurityException(String.format( 6203 "Permission denial: device owners cannot update %1$s", setting)); 6204 } 6205 6206 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 6207 // ignore if it contradicts an existing policy 6208 long timeMs = getMaximumTimeToLock(who, UserHandle.getCallingUserId()); 6209 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 6210 return; 6211 } 6212 } 6213 6214 long id = mInjector.binderClearCallingIdentity(); 6215 try { 6216 mInjector.settingsGlobalPutString(setting, value); 6217 } finally { 6218 mInjector.binderRestoreCallingIdentity(id); 6219 } 6220 } 6221 } 6222 6223 @Override 6224 public void setSecureSetting(ComponentName who, String setting, String value) { 6225 Preconditions.checkNotNull(who, "ComponentName is null"); 6226 int callingUserId = mInjector.userHandleGetCallingUserId(); 6227 6228 synchronized (this) { 6229 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6230 6231 if (isDeviceOwner(who, mInjector.userHandleGetCallingUserId())) { 6232 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 6233 throw new SecurityException(String.format( 6234 "Permission denial: Device owners cannot update %1$s", setting)); 6235 } 6236 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 6237 throw new SecurityException(String.format( 6238 "Permission denial: Profile owners cannot update %1$s", setting)); 6239 } 6240 6241 long id = mInjector.binderClearCallingIdentity(); 6242 try { 6243 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 6244 } finally { 6245 mInjector.binderRestoreCallingIdentity(id); 6246 } 6247 } 6248 } 6249 6250 @Override 6251 public void setMasterVolumeMuted(ComponentName who, boolean on) { 6252 Preconditions.checkNotNull(who, "ComponentName is null"); 6253 synchronized (this) { 6254 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6255 int userId = UserHandle.getCallingUserId(); 6256 long identity = mInjector.binderClearCallingIdentity(); 6257 try { 6258 IAudioService iAudioService = IAudioService.Stub.asInterface( 6259 ServiceManager.getService(Context.AUDIO_SERVICE)); 6260 iAudioService.setMasterMute(on, 0, mContext.getPackageName(), userId); 6261 } catch (RemoteException re) { 6262 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 6263 } finally { 6264 mInjector.binderRestoreCallingIdentity(identity); 6265 } 6266 } 6267 } 6268 6269 @Override 6270 public boolean isMasterVolumeMuted(ComponentName who) { 6271 Preconditions.checkNotNull(who, "ComponentName is null"); 6272 synchronized (this) { 6273 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6274 6275 AudioManager audioManager = 6276 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 6277 return audioManager.isMasterMute(); 6278 } 6279 } 6280 6281 @Override 6282 public void setUserIcon(ComponentName who, Bitmap icon) { 6283 synchronized (this) { 6284 Preconditions.checkNotNull(who, "ComponentName is null"); 6285 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6286 6287 int userId = UserHandle.getCallingUserId(); 6288 long id = mInjector.binderClearCallingIdentity(); 6289 try { 6290 mUserManager.setUserIcon(userId, icon); 6291 } finally { 6292 mInjector.binderRestoreCallingIdentity(id); 6293 } 6294 } 6295 } 6296 6297 @Override 6298 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 6299 Preconditions.checkNotNull(who, "ComponentName is null"); 6300 synchronized (this) { 6301 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6302 } 6303 final int userId = UserHandle.getCallingUserId(); 6304 LockPatternUtils utils = new LockPatternUtils(mContext); 6305 6306 long ident = mInjector.binderClearCallingIdentity(); 6307 try { 6308 // disallow disabling the keyguard if a password is currently set 6309 if (disabled && utils.isSecure(userId)) { 6310 return false; 6311 } 6312 utils.setLockScreenDisabled(disabled, userId); 6313 } finally { 6314 mInjector.binderRestoreCallingIdentity(ident); 6315 } 6316 return true; 6317 } 6318 6319 @Override 6320 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 6321 int userId = UserHandle.getCallingUserId(); 6322 synchronized (this) { 6323 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6324 DevicePolicyData policy = getUserData(userId); 6325 if (policy.mStatusBarDisabled != disabled) { 6326 if (!setStatusBarDisabledInternal(disabled, userId)) { 6327 return false; 6328 } 6329 policy.mStatusBarDisabled = disabled; 6330 saveSettingsLocked(userId); 6331 } 6332 } 6333 return true; 6334 } 6335 6336 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 6337 long ident = mInjector.binderClearCallingIdentity(); 6338 try { 6339 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 6340 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 6341 if (statusBarService != null) { 6342 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 6343 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 6344 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 6345 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 6346 return true; 6347 } 6348 } catch (RemoteException e) { 6349 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 6350 } finally { 6351 mInjector.binderRestoreCallingIdentity(ident); 6352 } 6353 return false; 6354 } 6355 6356 /** 6357 * We need to update the internal state of whether a user has completed setup once. After 6358 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 6359 * as we don't trust any apps that might try to reset it. 6360 * <p> 6361 * Unfortunately, we don't know which user's setup state was changed, so we write all of 6362 * them. 6363 */ 6364 void updateUserSetupComplete() { 6365 List<UserInfo> users = mUserManager.getUsers(true); 6366 final int N = users.size(); 6367 for (int i = 0; i < N; i++) { 6368 int userHandle = users.get(i).id; 6369 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 6370 userHandle) != 0) { 6371 DevicePolicyData policy = getUserData(userHandle); 6372 if (!policy.mUserSetupComplete) { 6373 policy.mUserSetupComplete = true; 6374 synchronized (this) { 6375 saveSettingsLocked(userHandle); 6376 } 6377 } 6378 } 6379 } 6380 } 6381 6382 private class SetupContentObserver extends ContentObserver { 6383 6384 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 6385 Settings.Secure.USER_SETUP_COMPLETE); 6386 6387 public SetupContentObserver(Handler handler) { 6388 super(handler); 6389 } 6390 6391 void register(ContentResolver resolver) { 6392 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 6393 } 6394 6395 @Override 6396 public void onChange(boolean selfChange, Uri uri) { 6397 if (mUserSetupComplete.equals(uri)) { 6398 updateUserSetupComplete(); 6399 } 6400 } 6401 } 6402 6403 @VisibleForTesting 6404 final class LocalService extends DevicePolicyManagerInternal { 6405 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 6406 6407 @Override 6408 public List<String> getCrossProfileWidgetProviders(int profileId) { 6409 synchronized (DevicePolicyManagerService.this) { 6410 if (mOwners == null) { 6411 return Collections.emptyList(); 6412 } 6413 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 6414 if (ownerComponent == null) { 6415 return Collections.emptyList(); 6416 } 6417 6418 DevicePolicyData policy = getUserDataUnchecked(profileId); 6419 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 6420 6421 if (admin == null || admin.crossProfileWidgetProviders == null 6422 || admin.crossProfileWidgetProviders.isEmpty()) { 6423 return Collections.emptyList(); 6424 } 6425 6426 return admin.crossProfileWidgetProviders; 6427 } 6428 } 6429 6430 @Override 6431 public void addOnCrossProfileWidgetProvidersChangeListener( 6432 OnCrossProfileWidgetProvidersChangeListener listener) { 6433 synchronized (DevicePolicyManagerService.this) { 6434 if (mWidgetProviderListeners == null) { 6435 mWidgetProviderListeners = new ArrayList<>(); 6436 } 6437 if (!mWidgetProviderListeners.contains(listener)) { 6438 mWidgetProviderListeners.add(listener); 6439 } 6440 } 6441 } 6442 6443 @Override 6444 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 6445 final int userId = UserHandle.getUserId(uid); 6446 synchronized(DevicePolicyManagerService.this) { 6447 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 6448 } 6449 } 6450 6451 @Override 6452 public Bundle getComposedUserRestrictions(int userId, Bundle inBundle) { 6453 synchronized (DevicePolicyManagerService.this) { 6454 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6455 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 6456 6457 final Bundle deviceOwnerRestrictions = 6458 deviceOwner == null ? null : deviceOwner.userRestrictions; 6459 final Bundle profileOwnerRestrictions = 6460 profileOwner == null ? null : profileOwner.userRestrictions; 6461 final boolean cameraDisabled = getCameraDisabled(null, userId); 6462 6463 if (deviceOwnerRestrictions == null && profileOwnerRestrictions == null 6464 && !cameraDisabled) { 6465 // No restrictions to merge. 6466 return inBundle; 6467 } 6468 6469 final Bundle composed = new Bundle(inBundle); 6470 UserRestrictionsUtils.merge(composed, deviceOwnerRestrictions); 6471 UserRestrictionsUtils.merge(composed, profileOwnerRestrictions); 6472 6473 // Also merge in the camera restriction. 6474 if (cameraDisabled) { 6475 composed.putBoolean(UserManager.DISALLOW_CAMERA, true); 6476 } 6477 6478 return composed; 6479 } 6480 } 6481 6482 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 6483 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 6484 synchronized (DevicePolicyManagerService.this) { 6485 listeners = new ArrayList<>(mWidgetProviderListeners); 6486 } 6487 final int listenerCount = listeners.size(); 6488 for (int i = 0; i < listenerCount; i++) { 6489 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 6490 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 6491 } 6492 } 6493 } 6494 6495 /** 6496 * Returns true if specified admin is allowed to limit passwords and has a 6497 * {@code passwordQuality} of at least {@code minPasswordQuality} 6498 */ 6499 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 6500 if (admin.passwordQuality < minPasswordQuality) { 6501 return false; 6502 } 6503 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 6504 } 6505 6506 @Override 6507 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 6508 if (policy != null && !policy.isValid()) { 6509 throw new IllegalArgumentException("Invalid system update policy."); 6510 } 6511 synchronized (this) { 6512 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6513 if (policy == null) { 6514 mOwners.clearSystemUpdatePolicy(); 6515 } else { 6516 mOwners.setSystemUpdatePolicy(policy); 6517 } 6518 mOwners.writeDeviceOwner(); 6519 } 6520 mContext.sendBroadcastAsUser( 6521 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 6522 UserHandle.SYSTEM); 6523 } 6524 6525 @Override 6526 public SystemUpdatePolicy getSystemUpdatePolicy() { 6527 synchronized (this) { 6528 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 6529 if (policy != null && !policy.isValid()) { 6530 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 6531 return null; 6532 } 6533 return policy; 6534 } 6535 } 6536 6537 /** 6538 * Checks if the caller of the method is the device owner app. 6539 * 6540 * @param callerUid UID of the caller. 6541 * @return true if the caller is the device owner app 6542 */ 6543 @VisibleForTesting 6544 boolean isCallerDeviceOwner(int callerUid) { 6545 synchronized (this) { 6546 if (!mOwners.hasDeviceOwner()) { 6547 return false; 6548 } 6549 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 6550 return false; 6551 } 6552 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 6553 .getPackageName(); 6554 final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 6555 6556 for (String pkg : pkgs) { 6557 if (deviceOwnerPackageName.equals(pkg)) { 6558 return true; 6559 } 6560 } 6561 } 6562 6563 return false; 6564 } 6565 6566 @Override 6567 public void notifyPendingSystemUpdate(long updateReceivedTime) { 6568 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 6569 "Only the system update service can broadcast update information"); 6570 6571 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 6572 Slog.w(LOG_TAG, "Only the system update service in the system user " + 6573 "can broadcast update information."); 6574 return; 6575 } 6576 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 6577 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 6578 updateReceivedTime); 6579 6580 synchronized (this) { 6581 final String deviceOwnerPackage = getDeviceOwner() == null ? null : 6582 getDeviceOwner().getPackageName(); 6583 if (deviceOwnerPackage == null) { 6584 return; 6585 } 6586 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 6587 6588 ActivityInfo[] receivers = null; 6589 try { 6590 receivers = mContext.getPackageManager().getPackageInfo( 6591 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 6592 } catch (NameNotFoundException e) { 6593 Log.e(LOG_TAG, "Cannot find device owner package", e); 6594 } 6595 if (receivers != null) { 6596 long ident = mInjector.binderClearCallingIdentity(); 6597 try { 6598 for (int i = 0; i < receivers.length; i++) { 6599 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 6600 intent.setComponent(new ComponentName(deviceOwnerPackage, 6601 receivers[i].name)); 6602 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 6603 } 6604 } 6605 } finally { 6606 mInjector.binderRestoreCallingIdentity(ident); 6607 } 6608 } 6609 } 6610 } 6611 6612 @Override 6613 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 6614 int userId = UserHandle.getCallingUserId(); 6615 synchronized (this) { 6616 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6617 DevicePolicyData userPolicy = getUserData(userId); 6618 if (userPolicy.mPermissionPolicy != policy) { 6619 userPolicy.mPermissionPolicy = policy; 6620 saveSettingsLocked(userId); 6621 } 6622 } 6623 } 6624 6625 @Override 6626 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 6627 int userId = UserHandle.getCallingUserId(); 6628 synchronized (this) { 6629 DevicePolicyData userPolicy = getUserData(userId); 6630 return userPolicy.mPermissionPolicy; 6631 } 6632 } 6633 6634 @Override 6635 public boolean setPermissionGrantState(ComponentName admin, String packageName, 6636 String permission, int grantState) throws RemoteException { 6637 UserHandle user = mInjector.binderGetCallingUserHandle(); 6638 synchronized (this) { 6639 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6640 long ident = mInjector.binderClearCallingIdentity(); 6641 try { 6642 if (getTargetSdk(packageName, user.getIdentifier()) 6643 < android.os.Build.VERSION_CODES.M) { 6644 return false; 6645 } 6646 final PackageManager packageManager = mContext.getPackageManager(); 6647 switch (grantState) { 6648 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 6649 packageManager.grantRuntimePermission(packageName, permission, user); 6650 packageManager.updatePermissionFlags(permission, packageName, 6651 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6652 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6653 } break; 6654 6655 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 6656 packageManager.revokeRuntimePermission(packageName, 6657 permission, user); 6658 packageManager.updatePermissionFlags(permission, packageName, 6659 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6660 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6661 } break; 6662 6663 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 6664 packageManager.updatePermissionFlags(permission, packageName, 6665 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 6666 } break; 6667 } 6668 return true; 6669 } catch (SecurityException se) { 6670 return false; 6671 } finally { 6672 mInjector.binderRestoreCallingIdentity(ident); 6673 } 6674 } 6675 } 6676 6677 @Override 6678 public int getPermissionGrantState(ComponentName admin, String packageName, 6679 String permission) throws RemoteException { 6680 PackageManager packageManager = mContext.getPackageManager(); 6681 6682 UserHandle user = mInjector.binderGetCallingUserHandle(); 6683 synchronized (this) { 6684 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6685 long ident = mInjector.binderClearCallingIdentity(); 6686 try { 6687 int granted = mIPackageManager.checkPermission(permission, 6688 packageName, user.getIdentifier()); 6689 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 6690 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 6691 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 6692 // Not controlled by policy 6693 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 6694 } else { 6695 // Policy controlled so return result based on permission grant state 6696 return granted == PackageManager.PERMISSION_GRANTED 6697 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 6698 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 6699 } 6700 } finally { 6701 mInjector.binderRestoreCallingIdentity(ident); 6702 } 6703 } 6704 } 6705 6706 boolean isPackageInstalledForUser(String packageName, int userHandle) { 6707 try { 6708 PackageInfo pi = mIPackageManager.getPackageInfo(packageName, 0, userHandle); 6709 return (pi != null) && (pi.applicationInfo.flags != 0); 6710 } catch (RemoteException re) { 6711 throw new RuntimeException("Package manager has died", re); 6712 } 6713 } 6714 6715 @Override 6716 public boolean isProvisioningAllowed(String action) { 6717 final int callingUserId = mInjector.userHandleGetCallingUserId(); 6718 if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) { 6719 if (mOwners.hasDeviceOwner()) { 6720 if (!mInjector.userManagerIsSplitSystemUser()) { 6721 // Only split-system-user systems support managed-profiles in combination with 6722 // device-owner. 6723 return false; 6724 } 6725 if (mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM) { 6726 // Only system device-owner supports managed-profiles. Non-system device-owner 6727 // doesn't. 6728 return false; 6729 } 6730 if (callingUserId == UserHandle.USER_SYSTEM) { 6731 // Managed-profiles cannot be setup on the system user, only regular users. 6732 return false; 6733 } 6734 } 6735 if (getProfileOwner(callingUserId) != null) { 6736 // Managed user cannot have a managed profile. 6737 return false; 6738 } 6739 try { 6740 if (!mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS)) { 6741 return false; 6742 } 6743 } catch (RemoteException e) { 6744 return false; 6745 } 6746 final long ident = mInjector.binderClearCallingIdentity(); 6747 try { 6748 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, true)) { 6749 return false; 6750 } 6751 } finally { 6752 mInjector.binderRestoreCallingIdentity(ident); 6753 } 6754 return true; 6755 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) { 6756 return isDeviceOwnerProvisioningAllowed(callingUserId); 6757 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) { 6758 if (!mInjector.userManagerIsSplitSystemUser()) { 6759 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 6760 return false; 6761 } 6762 if (hasUserSetupCompleted(callingUserId)) { 6763 return false; 6764 } 6765 return true; 6766 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) { 6767 if (!mInjector.userManagerIsSplitSystemUser()) { 6768 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 6769 return false; 6770 } 6771 return isDeviceOwnerProvisioningAllowed(callingUserId); 6772 } 6773 throw new IllegalArgumentException("Unknown provisioning action " + action); 6774 } 6775 6776 private boolean isDeviceOwnerProvisioningAllowed(int callingUserId) { 6777 if (mOwners.hasDeviceOwner()) { 6778 return false; 6779 } 6780 if (getProfileOwner(callingUserId) != null) { 6781 return false; 6782 } 6783 if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0) { 6784 return false; 6785 } 6786 if (callingUserId != UserHandle.USER_SYSTEM) { 6787 // Device owner provisioning can only be initiated from system user. 6788 return false; 6789 } 6790 return true; 6791 } 6792 6793 /** 6794 * Returns the target sdk version number that the given packageName was built for 6795 * in the given user. 6796 */ 6797 private int getTargetSdk(String packageName, int userId) throws RemoteException { 6798 final ApplicationInfo ai = mIPackageManager 6799 .getApplicationInfo(packageName, 0, userId); 6800 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 6801 return targetSdkVersion; 6802 } 6803} 6804