DevicePolicyManagerService.java revision 6644cd9630be363a25af5e1327f41e16ca868556
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 void settingsGlobalPutInt(String name, int value) { 1222 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1223 } 1224 1225 void settingsSecurePutString(String name, String value) { 1226 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1227 } 1228 1229 void settingsGlobalPutString(String name, String value) { 1230 Settings.Global.putString(mContext.getContentResolver(), name, value); 1231 } 1232 } 1233 1234 /** 1235 * Instantiates the service. 1236 */ 1237 public DevicePolicyManagerService(Context context) { 1238 this(new Injector(context)); 1239 } 1240 1241 @VisibleForTesting 1242 DevicePolicyManagerService(Injector injector) { 1243 mInjector = injector; 1244 mContext = Preconditions.checkNotNull(injector.mContext); 1245 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1246 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1247 1248 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1249 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1250 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1251 1252 mLocalService = new LocalService(); 1253 1254 mHasFeature = mContext.getPackageManager() 1255 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1256 if (!mHasFeature) { 1257 // Skip the rest of the initialization 1258 return; 1259 } 1260 IntentFilter filter = new IntentFilter(); 1261 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1262 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1263 filter.addAction(Intent.ACTION_USER_REMOVED); 1264 filter.addAction(Intent.ACTION_USER_STARTED); 1265 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1266 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1267 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1268 filter = new IntentFilter(); 1269 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1270 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1271 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1272 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1273 filter.addDataScheme("package"); 1274 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1275 filter = new IntentFilter(); 1276 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1277 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1278 1279 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1280 } 1281 1282 /** 1283 * Creates and loads the policy data from xml. 1284 * @param userHandle the user for whom to load the policy data 1285 * @return 1286 */ 1287 @NonNull 1288 DevicePolicyData getUserData(int userHandle) { 1289 synchronized (this) { 1290 DevicePolicyData policy = mUserData.get(userHandle); 1291 if (policy == null) { 1292 policy = new DevicePolicyData(userHandle); 1293 mUserData.append(userHandle, policy); 1294 loadSettingsLocked(policy, userHandle); 1295 } 1296 return policy; 1297 } 1298 } 1299 1300 /** 1301 * Creates and loads the policy data from xml for data that is shared between 1302 * various profiles of a user. In contrast to {@link #getUserData(int)} 1303 * it allows access to data of users other than the calling user. 1304 * 1305 * This function should only be used for shared data, e.g. everything regarding 1306 * passwords and should be removed once multiple screen locks are present. 1307 * @param userHandle the user for whom to load the policy data 1308 * @return 1309 */ 1310 DevicePolicyData getUserDataUnchecked(int userHandle) { 1311 long ident = mInjector.binderClearCallingIdentity(); 1312 try { 1313 return getUserData(userHandle); 1314 } finally { 1315 mInjector.binderRestoreCallingIdentity(ident); 1316 } 1317 } 1318 1319 void removeUserData(int userHandle) { 1320 synchronized (this) { 1321 if (userHandle == UserHandle.USER_SYSTEM) { 1322 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1323 return; 1324 } 1325 mOwners.removeProfileOwner(userHandle); 1326 mOwners.writeProfileOwner(userHandle); 1327 1328 DevicePolicyData policy = mUserData.get(userHandle); 1329 if (policy != null) { 1330 mUserData.remove(userHandle); 1331 } 1332 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1333 DEVICE_POLICIES_XML); 1334 policyFile.delete(); 1335 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1336 } 1337 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1338 } 1339 1340 void loadOwners() { 1341 synchronized (this) { 1342 mOwners.load(); 1343 findOwnerComponentIfNecessaryLocked(); 1344 migrateUserRestrictionsIfNecessaryLocked(); 1345 1346 // TODO PO may not have a class name either due to b/17652534. Address that too. 1347 1348 updateDeviceOwnerLocked(); 1349 1350 // TODO Notify UM to update restrictions (?) 1351 } 1352 } 1353 1354 private void findOwnerComponentIfNecessaryLocked() { 1355 if (!mOwners.hasDeviceOwner()) { 1356 return; 1357 } 1358 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1359 1360 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1361 return; // Already a full component name. 1362 } 1363 1364 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1365 doComponentName.getPackageName(), 1366 mOwners.getDeviceOwnerUserId()); 1367 if (doComponent == null) { 1368 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1369 } else { 1370 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1371 doComponent, 1372 mOwners.getDeviceOwnerName(), 1373 mOwners.getDeviceOwnerUserId(), 1374 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1375 mOwners.writeDeviceOwner(); 1376 if (VERBOSE_LOG) { 1377 Log.v(LOG_TAG, "Device owner component filled in"); 1378 } 1379 } 1380 } 1381 1382 /** 1383 * We didn't use to persist user restrictions for each owners but only persisted in user 1384 * manager. 1385 */ 1386 private void migrateUserRestrictionsIfNecessaryLocked() { 1387 boolean migrated = false; 1388 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1389 // except for the "system controlled" ones. 1390 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1391 if (VERBOSE_LOG) { 1392 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1393 } 1394 migrated = true; 1395 1396 // Migrate user 0 restrictions to DO, except for "system" restrictions. 1397 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1398 1399 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1400 /* exceptionList =*/ UserRestrictionsUtils.SYSTEM_CONTROLLED_USER_RESTRICTIONS); 1401 1402 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1403 } 1404 1405 // Migrate for POs. We have a few more exceptions. 1406 final Set<String> normalExceptionList = Sets.newArraySet( 1407 UserManager.DISALLOW_OUTGOING_CALLS, 1408 UserManager.DISALLOW_SMS); 1409 normalExceptionList.addAll(UserRestrictionsUtils.SYSTEM_CONTROLLED_USER_RESTRICTIONS); 1410 1411 final Set<String> managedExceptionList = new ArraySet<>(normalExceptionList.size() + 1); 1412 managedExceptionList.addAll(normalExceptionList); 1413 managedExceptionList.add(UserManager.DISALLOW_WALLPAPER); 1414 1415 for (UserInfo ui : mUserManager.getUsers()) { 1416 final int userId = ui.id; 1417 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1418 if (userId != UserHandle.USER_SYSTEM) { 1419 if (VERBOSE_LOG) { 1420 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1421 } 1422 migrated = true; 1423 1424 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1425 1426 final Set<String> exceptionList = 1427 ui.isManagedProfile() ? managedExceptionList : normalExceptionList; 1428 1429 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1430 exceptionList); 1431 } 1432 1433 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1434 } 1435 } 1436 if (VERBOSE_LOG && migrated) { 1437 Log.v(LOG_TAG, "User restrictions migrated."); 1438 } 1439 } 1440 1441 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1442 Set<String> exceptionList) { 1443 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1444 user.getIdentifier()); 1445 1446 final Bundle newSystemRestrictions = new Bundle(); 1447 final Bundle newOwnerRestrictions = new Bundle(); 1448 1449 for (String key : origRestrictions.keySet()) { 1450 if (!origRestrictions.getBoolean(key)) { 1451 continue; 1452 } 1453 if (exceptionList.contains(key)) { 1454 newSystemRestrictions.putBoolean(key, true); 1455 } else { 1456 newOwnerRestrictions.putBoolean(key, true); 1457 } 1458 } 1459 1460 if (VERBOSE_LOG) { 1461 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1462 Log.v(LOG_TAG, "newSystemRestrictions=" + newSystemRestrictions); 1463 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1464 } 1465 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1466 newSystemRestrictions); 1467 1468 if (admin != null) { 1469 admin.ensureUserRestrictions().clear(); 1470 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1471 } else { 1472 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1473 } 1474 saveSettingsLocked(user.getIdentifier()); 1475 } 1476 1477 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1478 final DevicePolicyData policy = getUserData(userId); 1479 final int n = policy.mAdminList.size(); 1480 ComponentName found = null; 1481 int nFound = 0; 1482 for (int i = 0; i < n; i++) { 1483 final ActiveAdmin admin = policy.mAdminList.get(i); 1484 if (packageName.equals(admin.info.getPackageName())) { 1485 // Found! 1486 if (nFound == 0) { 1487 found = admin.info.getComponent(); 1488 } 1489 nFound++; 1490 } 1491 } 1492 if (nFound > 1) { 1493 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1494 } 1495 return found; 1496 } 1497 1498 /** 1499 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1500 * reminders. Clears alarm if no expirations are configured. 1501 */ 1502 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1503 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1504 final long now = System.currentTimeMillis(); 1505 final long timeToExpire = expiration - now; 1506 final long alarmTime; 1507 if (expiration == 0) { 1508 // No expirations are currently configured: Cancel alarm. 1509 alarmTime = 0; 1510 } else if (timeToExpire <= 0) { 1511 // The password has already expired: Repeat every 24 hours. 1512 alarmTime = now + MS_PER_DAY; 1513 } else { 1514 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1515 // the expiration time. 1516 long alarmInterval = timeToExpire % MS_PER_DAY; 1517 if (alarmInterval == 0) { 1518 alarmInterval = MS_PER_DAY; 1519 } 1520 alarmTime = now + alarmInterval; 1521 } 1522 1523 long token = mInjector.binderClearCallingIdentity(); 1524 try { 1525 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1526 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1527 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1528 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1529 new UserHandle(policy.mUserHandle)); 1530 am.cancel(pi); 1531 if (alarmTime != 0) { 1532 am.set(AlarmManager.RTC, alarmTime, pi); 1533 } 1534 } finally { 1535 mInjector.binderRestoreCallingIdentity(token); 1536 } 1537 } 1538 1539 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1540 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1541 if (admin != null 1542 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1543 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1544 return admin; 1545 } 1546 return null; 1547 } 1548 1549 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1550 throws SecurityException { 1551 final int callingUid = mInjector.binderGetCallingUid(); 1552 1553 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1554 if (result != null) { 1555 return result; 1556 } 1557 1558 if (who != null) { 1559 final int userId = UserHandle.getUserId(callingUid); 1560 final DevicePolicyData policy = getUserData(userId); 1561 ActiveAdmin admin = policy.mAdminMap.get(who); 1562 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1563 throw new SecurityException("Admin " + admin.info.getComponent() 1564 + " does not own the device"); 1565 } 1566 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1567 throw new SecurityException("Admin " + admin.info.getComponent() 1568 + " does not own the profile"); 1569 } 1570 throw new SecurityException("Admin " + admin.info.getComponent() 1571 + " did not specify uses-policy for: " 1572 + admin.info.getTagForPolicy(reqPolicy)); 1573 } else { 1574 throw new SecurityException("No active admin owned by uid " 1575 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 1576 } 1577 } 1578 1579 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1580 int uid) { 1581 // Try to find an admin which can use reqPolicy 1582 final int userId = UserHandle.getUserId(uid); 1583 final DevicePolicyData policy = getUserData(userId); 1584 if (who != null) { 1585 ActiveAdmin admin = policy.mAdminMap.get(who); 1586 if (admin == null) { 1587 throw new SecurityException("No active admin " + who); 1588 } 1589 if (admin.getUid() != uid) { 1590 throw new SecurityException("Admin " + who + " is not owned by uid " 1591 + mInjector.binderGetCallingUid()); 1592 } 1593 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 1594 return admin; 1595 } 1596 } else { 1597 for (ActiveAdmin admin : policy.mAdminList) { 1598 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 1599 userId)) { 1600 return admin; 1601 } 1602 } 1603 } 1604 1605 return null; 1606 } 1607 1608 @VisibleForTesting 1609 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 1610 int userId) { 1611 boolean ownsDevice = isDeviceOwner(admin.info.getComponent()); 1612 boolean ownsProfile = (getProfileOwner(userId) != null 1613 && getProfileOwner(userId).getPackageName() 1614 .equals(admin.info.getPackageName())); 1615 1616 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1617 if ((userId == UserHandle.USER_SYSTEM && ownsDevice) || (ownsDevice && ownsProfile)) { 1618 return true; 1619 } 1620 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1621 if ((userId == UserHandle.USER_SYSTEM && ownsDevice) || ownsProfile) { 1622 return true; 1623 } 1624 } else { 1625 if (admin.info.usesPolicy(reqPolicy)) { 1626 return true; 1627 } 1628 } 1629 return false; 1630 } 1631 1632 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1633 sendAdminCommandLocked(admin, action, null); 1634 } 1635 1636 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1637 sendAdminCommandLocked(admin, action, null, result); 1638 } 1639 1640 /** 1641 * Send an update to one specific admin, get notified when that admin returns a result. 1642 */ 1643 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1644 BroadcastReceiver result) { 1645 Intent intent = new Intent(action); 1646 intent.setComponent(admin.info.getComponent()); 1647 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1648 intent.putExtra("expiration", admin.passwordExpirationDate); 1649 } 1650 if (adminExtras != null) { 1651 intent.putExtras(adminExtras); 1652 } 1653 if (result != null) { 1654 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1655 null, result, mHandler, Activity.RESULT_OK, null, null); 1656 } else { 1657 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1658 } 1659 } 1660 1661 /** 1662 * Send an update to all admins of a user that enforce a specified policy. 1663 */ 1664 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1665 final DevicePolicyData policy = getUserData(userHandle); 1666 final int count = policy.mAdminList.size(); 1667 if (count > 0) { 1668 for (int i = 0; i < count; i++) { 1669 final ActiveAdmin admin = policy.mAdminList.get(i); 1670 if (admin.info.usesPolicy(reqPolicy)) { 1671 sendAdminCommandLocked(admin, action); 1672 } 1673 } 1674 } 1675 } 1676 1677 /** 1678 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1679 * enforce a specified policy. 1680 */ 1681 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1682 int userHandle) { 1683 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1684 for (UserInfo ui : profiles) { 1685 int id = ui.id; 1686 sendAdminCommandLocked(action, reqPolicy, id); 1687 } 1688 } 1689 1690 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 1691 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1692 if (admin != null) { 1693 synchronized (this) { 1694 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 1695 } 1696 sendAdminCommandLocked(admin, 1697 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1698 new BroadcastReceiver() { 1699 @Override 1700 public void onReceive(Context context, Intent intent) { 1701 synchronized (DevicePolicyManagerService.this) { 1702 int userHandle = admin.getUserHandle().getIdentifier(); 1703 DevicePolicyData policy = getUserData(userHandle); 1704 boolean doProxyCleanup = admin.info.usesPolicy( 1705 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1706 policy.mAdminList.remove(admin); 1707 policy.mAdminMap.remove(adminReceiver); 1708 validatePasswordOwnerLocked(policy); 1709 if (doProxyCleanup) { 1710 resetGlobalProxyLocked(getUserData(userHandle)); 1711 } 1712 saveSettingsLocked(userHandle); 1713 updateMaximumTimeToLockLocked(policy); 1714 policy.mRemovingAdmins.remove(adminReceiver); 1715 } 1716 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 1717 synchronized (DevicePolicyManagerService.this) { 1718 mUserManagerInternal.updateEffectiveUserRestrictionsLR( 1719 userHandle); 1720 } 1721 } 1722 } 1723 }); 1724 } 1725 } 1726 1727 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) { 1728 if (!mHasFeature) { 1729 return null; 1730 } 1731 enforceCrossUserPermission(userHandle); 1732 Intent resolveIntent = new Intent(); 1733 resolveIntent.setComponent(adminName); 1734 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1735 resolveIntent, 1736 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1737 userHandle); 1738 if (infos == null || infos.size() <= 0) { 1739 throw new IllegalArgumentException("Unknown admin: " + adminName); 1740 } 1741 1742 try { 1743 return new DeviceAdminInfo(mContext, infos.get(0)); 1744 } catch (XmlPullParserException e) { 1745 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1746 e); 1747 return null; 1748 } catch (IOException e) { 1749 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1750 e); 1751 return null; 1752 } 1753 } 1754 1755 private JournaledFile makeJournaledFile(int userHandle) { 1756 final String base = userHandle == UserHandle.USER_SYSTEM 1757 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 1758 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1759 DEVICE_POLICIES_XML).getAbsolutePath(); 1760 if (VERBOSE_LOG) { 1761 Log.v(LOG_TAG, "Opening " + base); 1762 } 1763 return new JournaledFile(new File(base), new File(base + ".tmp")); 1764 } 1765 1766 private void saveSettingsLocked(int userHandle) { 1767 DevicePolicyData policy = getUserData(userHandle); 1768 JournaledFile journal = makeJournaledFile(userHandle); 1769 FileOutputStream stream = null; 1770 try { 1771 stream = new FileOutputStream(journal.chooseForWrite(), false); 1772 XmlSerializer out = new FastXmlSerializer(); 1773 out.setOutput(stream, StandardCharsets.UTF_8.name()); 1774 out.startDocument(null, true); 1775 1776 out.startTag(null, "policies"); 1777 if (policy.mRestrictionsProvider != null) { 1778 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1779 policy.mRestrictionsProvider.flattenToString()); 1780 } 1781 if (policy.mUserSetupComplete) { 1782 out.attribute(null, ATTR_SETUP_COMPLETE, 1783 Boolean.toString(true)); 1784 } 1785 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 1786 out.attribute(null, ATTR_PERMISSION_POLICY, 1787 Integer.toString(policy.mPermissionPolicy)); 1788 } 1789 if (policy.mDelegatedCertInstallerPackage != null) { 1790 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 1791 policy.mDelegatedCertInstallerPackage); 1792 } 1793 1794 final int N = policy.mAdminList.size(); 1795 for (int i=0; i<N; i++) { 1796 ActiveAdmin ap = policy.mAdminList.get(i); 1797 if (ap != null) { 1798 out.startTag(null, "admin"); 1799 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1800 ap.writeToXml(out); 1801 out.endTag(null, "admin"); 1802 } 1803 } 1804 1805 if (policy.mPasswordOwner >= 0) { 1806 out.startTag(null, "password-owner"); 1807 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1808 out.endTag(null, "password-owner"); 1809 } 1810 1811 if (policy.mFailedPasswordAttempts != 0) { 1812 out.startTag(null, "failed-password-attempts"); 1813 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1814 out.endTag(null, "failed-password-attempts"); 1815 } 1816 1817 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1818 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1819 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1820 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1821 out.startTag(null, "active-password"); 1822 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1823 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1824 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1825 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1826 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1827 out.attribute(null, "numeric", Integer 1828 .toString(policy.mActivePasswordNumeric)); 1829 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1830 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1831 out.endTag(null, "active-password"); 1832 } 1833 1834 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1835 String component = policy.mLockTaskPackages.get(i); 1836 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 1837 out.attribute(null, "name", component); 1838 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 1839 } 1840 1841 if (policy.mStatusBarDisabled) { 1842 out.startTag(null, TAG_STATUS_BAR); 1843 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 1844 out.endTag(null, TAG_STATUS_BAR); 1845 } 1846 1847 if (policy.doNotAskCredentialsOnBoot) { 1848 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1849 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1850 } 1851 1852 out.endTag(null, "policies"); 1853 1854 out.endDocument(); 1855 stream.flush(); 1856 FileUtils.sync(stream); 1857 stream.close(); 1858 journal.commit(); 1859 sendChangedNotification(userHandle); 1860 } catch (IOException e) { 1861 Slog.w(LOG_TAG, "failed writing file", e); 1862 try { 1863 if (stream != null) { 1864 stream.close(); 1865 } 1866 } catch (IOException ex) { 1867 // Ignore 1868 } 1869 journal.rollback(); 1870 } 1871 } 1872 1873 private void sendChangedNotification(int userHandle) { 1874 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1875 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1876 long ident = mInjector.binderClearCallingIdentity(); 1877 try { 1878 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1879 } finally { 1880 mInjector.binderRestoreCallingIdentity(ident); 1881 } 1882 } 1883 1884 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1885 JournaledFile journal = makeJournaledFile(userHandle); 1886 FileInputStream stream = null; 1887 File file = journal.chooseForRead(); 1888 try { 1889 stream = new FileInputStream(file); 1890 XmlPullParser parser = Xml.newPullParser(); 1891 parser.setInput(stream, StandardCharsets.UTF_8.name()); 1892 1893 int type; 1894 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1895 && type != XmlPullParser.START_TAG) { 1896 } 1897 String tag = parser.getName(); 1898 if (!"policies".equals(tag)) { 1899 throw new XmlPullParserException( 1900 "Settings do not start with policies tag: found " + tag); 1901 } 1902 1903 // Extract the permission provider component name if available 1904 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1905 if (permissionProvider != null) { 1906 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1907 } 1908 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1909 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1910 policy.mUserSetupComplete = true; 1911 } 1912 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 1913 if (!TextUtils.isEmpty(permissionPolicy)) { 1914 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 1915 } 1916 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 1917 ATTR_DELEGATED_CERT_INSTALLER); 1918 1919 type = parser.next(); 1920 int outerDepth = parser.getDepth(); 1921 policy.mLockTaskPackages.clear(); 1922 policy.mAdminList.clear(); 1923 policy.mAdminMap.clear(); 1924 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1925 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1926 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1927 continue; 1928 } 1929 tag = parser.getName(); 1930 if ("admin".equals(tag)) { 1931 String name = parser.getAttributeValue(null, "name"); 1932 try { 1933 DeviceAdminInfo dai = findAdmin( 1934 ComponentName.unflattenFromString(name), userHandle); 1935 if (VERBOSE_LOG 1936 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1937 != userHandle)) { 1938 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1939 + dai.getActivityInfo().applicationInfo.uid + " for user " 1940 + userHandle); 1941 } 1942 if (dai != null) { 1943 ActiveAdmin ap = new ActiveAdmin(dai); 1944 ap.readFromXml(parser); 1945 policy.mAdminMap.put(ap.info.getComponent(), ap); 1946 } 1947 } catch (RuntimeException e) { 1948 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1949 } 1950 } else if ("failed-password-attempts".equals(tag)) { 1951 policy.mFailedPasswordAttempts = Integer.parseInt( 1952 parser.getAttributeValue(null, "value")); 1953 } else if ("password-owner".equals(tag)) { 1954 policy.mPasswordOwner = Integer.parseInt( 1955 parser.getAttributeValue(null, "value")); 1956 } else if ("active-password".equals(tag)) { 1957 policy.mActivePasswordQuality = Integer.parseInt( 1958 parser.getAttributeValue(null, "quality")); 1959 policy.mActivePasswordLength = Integer.parseInt( 1960 parser.getAttributeValue(null, "length")); 1961 policy.mActivePasswordUpperCase = Integer.parseInt( 1962 parser.getAttributeValue(null, "uppercase")); 1963 policy.mActivePasswordLowerCase = Integer.parseInt( 1964 parser.getAttributeValue(null, "lowercase")); 1965 policy.mActivePasswordLetters = Integer.parseInt( 1966 parser.getAttributeValue(null, "letters")); 1967 policy.mActivePasswordNumeric = Integer.parseInt( 1968 parser.getAttributeValue(null, "numeric")); 1969 policy.mActivePasswordSymbols = Integer.parseInt( 1970 parser.getAttributeValue(null, "symbols")); 1971 policy.mActivePasswordNonLetter = Integer.parseInt( 1972 parser.getAttributeValue(null, "nonletter")); 1973 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 1974 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 1975 } else if (TAG_STATUS_BAR.equals(tag)) { 1976 policy.mStatusBarDisabled = Boolean.parseBoolean( 1977 parser.getAttributeValue(null, ATTR_DISABLED)); 1978 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 1979 policy.doNotAskCredentialsOnBoot = true; 1980 } else { 1981 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1982 XmlUtils.skipCurrentTag(parser); 1983 } 1984 } 1985 } catch (NullPointerException e) { 1986 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1987 } catch (NumberFormatException e) { 1988 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1989 } catch (XmlPullParserException e) { 1990 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1991 } catch (FileNotFoundException e) { 1992 // Don't be noisy, this is normal if we haven't defined any policies. 1993 } catch (IOException e) { 1994 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1995 } catch (IndexOutOfBoundsException e) { 1996 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1997 } 1998 try { 1999 if (stream != null) { 2000 stream.close(); 2001 } 2002 } catch (IOException e) { 2003 // Ignore 2004 } 2005 2006 // Generate a list of admins from the admin map 2007 policy.mAdminList.addAll(policy.mAdminMap.values()); 2008 2009 // Validate that what we stored for the password quality matches 2010 // sufficiently what is currently set. Note that this is only 2011 // a sanity check in case the two get out of sync; this should 2012 // never normally happen. 2013 final long identity = mInjector.binderClearCallingIdentity(); 2014 try { 2015 LockPatternUtils utils = mInjector.newLockPatternUtils(); 2016 if (utils.getActivePasswordQuality(userHandle) < policy.mActivePasswordQuality) { 2017 Slog.w(LOG_TAG, "Active password quality 0x" 2018 + Integer.toHexString(policy.mActivePasswordQuality) 2019 + " does not match actual quality 0x" 2020 + Integer.toHexString(utils.getActivePasswordQuality(userHandle))); 2021 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2022 policy.mActivePasswordLength = 0; 2023 policy.mActivePasswordUpperCase = 0; 2024 policy.mActivePasswordLowerCase = 0; 2025 policy.mActivePasswordLetters = 0; 2026 policy.mActivePasswordNumeric = 0; 2027 policy.mActivePasswordSymbols = 0; 2028 policy.mActivePasswordNonLetter = 0; 2029 } 2030 } finally { 2031 mInjector.binderRestoreCallingIdentity(identity); 2032 } 2033 2034 validatePasswordOwnerLocked(policy); 2035 updateMaximumTimeToLockLocked(policy); 2036 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2037 if (policy.mStatusBarDisabled) { 2038 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2039 } 2040 } 2041 2042 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2043 long ident = mInjector.binderClearCallingIdentity(); 2044 try { 2045 mInjector.getIActivityManager() 2046 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2047 } catch (RemoteException e) { 2048 // Not gonna happen. 2049 } finally { 2050 mInjector.binderRestoreCallingIdentity(ident); 2051 } 2052 } 2053 2054 private void updateDeviceOwnerLocked() { 2055 long ident = mInjector.binderClearCallingIdentity(); 2056 try { 2057 if (getDeviceOwner() != null) { 2058 mInjector.getIActivityManager() 2059 .updateDeviceOwner(getDeviceOwner().getPackageName()); 2060 } 2061 } catch (RemoteException e) { 2062 // Not gonna happen. 2063 } finally { 2064 mInjector.binderRestoreCallingIdentity(ident); 2065 } 2066 } 2067 2068 static void validateQualityConstant(int quality) { 2069 switch (quality) { 2070 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2071 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2072 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2073 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2074 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2075 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2076 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2077 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2078 return; 2079 } 2080 throw new IllegalArgumentException("Invalid quality constant: 0x" 2081 + Integer.toHexString(quality)); 2082 } 2083 2084 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2085 if (policy.mPasswordOwner >= 0) { 2086 boolean haveOwner = false; 2087 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2088 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2089 haveOwner = true; 2090 break; 2091 } 2092 } 2093 if (!haveOwner) { 2094 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2095 + " no longer active; disabling"); 2096 policy.mPasswordOwner = -1; 2097 } 2098 } 2099 } 2100 2101 @VisibleForTesting 2102 void systemReady(int phase) { 2103 if (!mHasFeature) { 2104 return; 2105 } 2106 switch (phase) { 2107 case SystemService.PHASE_LOCK_SETTINGS_READY: 2108 onLockSettingsReady(); 2109 break; 2110 case SystemService.PHASE_BOOT_COMPLETED: 2111 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2112 break; 2113 } 2114 } 2115 2116 private void onLockSettingsReady() { 2117 getUserData(UserHandle.USER_SYSTEM); 2118 loadOwners(); 2119 cleanUpOldUsers(); 2120 // Register an observer for watching for user setup complete. 2121 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 2122 // Initialize the user setup state, to handle the upgrade case. 2123 updateUserSetupComplete(); 2124 2125 // Update the screen capture disabled cache in the window manager 2126 List<UserInfo> users = mUserManager.getUsers(true); 2127 final int N = users.size(); 2128 for (int i = 0; i < N; i++) { 2129 int userHandle = users.get(i).id; 2130 updateScreenCaptureDisabledInWindowManager(userHandle, 2131 getScreenCaptureDisabled(null, userHandle)); 2132 } 2133 } 2134 2135 private void ensureDeviceOwnerUserStarted() { 2136 if (mOwners.hasDeviceOwner()) { 2137 final int userId = mOwners.getDeviceOwnerUserId(); 2138 if (VERBOSE_LOG) { 2139 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2140 } 2141 if (userId != UserHandle.USER_SYSTEM) { 2142 try { 2143 mInjector.getIActivityManager().startUserInBackground(userId); 2144 2145 // STOPSHIP Prevent the DO user from being killed. 2146 2147 } catch (RemoteException e) { 2148 Slog.w(LOG_TAG, "Exception starting user", e); 2149 } 2150 } 2151 } 2152 } 2153 2154 private void cleanUpOldUsers() { 2155 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2156 // before reboot 2157 Set<Integer> usersWithProfileOwners; 2158 Set<Integer> usersWithData; 2159 synchronized(this) { 2160 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2161 usersWithData = new ArraySet<>(); 2162 for (int i = 0; i < mUserData.size(); i++) { 2163 usersWithData.add(mUserData.keyAt(i)); 2164 } 2165 } 2166 List<UserInfo> allUsers = mUserManager.getUsers(); 2167 2168 Set<Integer> deletedUsers = new ArraySet<>(); 2169 deletedUsers.addAll(usersWithProfileOwners); 2170 deletedUsers.addAll(usersWithData); 2171 for (UserInfo userInfo : allUsers) { 2172 deletedUsers.remove(userInfo.id); 2173 } 2174 for (Integer userId : deletedUsers) { 2175 removeUserData(userId); 2176 } 2177 } 2178 2179 private void handlePasswordExpirationNotification(int userHandle) { 2180 synchronized (this) { 2181 final long now = System.currentTimeMillis(); 2182 2183 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2184 for (UserInfo ui : profiles) { 2185 int profileUserHandle = ui.id; 2186 final DevicePolicyData policy = getUserData(profileUserHandle); 2187 final int count = policy.mAdminList.size(); 2188 if (count > 0) { 2189 for (int i = 0; i < count; i++) { 2190 final ActiveAdmin admin = policy.mAdminList.get(i); 2191 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2192 && admin.passwordExpirationTimeout > 0L 2193 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2194 && admin.passwordExpirationDate > 0L) { 2195 sendAdminCommandLocked(admin, 2196 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2197 } 2198 } 2199 } 2200 } 2201 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2202 } 2203 } 2204 2205 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 2206 @Override 2207 protected Void doInBackground(Intent... params) { 2208 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 2209 2210 if (userHandle == UserHandle.USER_ALL) { 2211 for (UserInfo userInfo : mUserManager.getUsers()) { 2212 manageNotification(userInfo.getUserHandle()); 2213 } 2214 } else { 2215 manageNotification(new UserHandle(userHandle)); 2216 } 2217 return null; 2218 } 2219 2220 private void manageNotification(UserHandle userHandle) { 2221 if (!mUserManager.isUserRunning(userHandle)) { 2222 return; 2223 } 2224 2225 // Call out to KeyChain to check for user-added CAs 2226 boolean hasCert = false; 2227 try { 2228 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 2229 try { 2230 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 2231 hasCert = true; 2232 } 2233 } catch (RemoteException e) { 2234 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2235 } finally { 2236 kcs.close(); 2237 } 2238 } catch (InterruptedException e) { 2239 Thread.currentThread().interrupt(); 2240 } catch (RuntimeException e) { 2241 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2242 } 2243 if (!hasCert) { 2244 mInjector.getNotificationManager().cancelAsUser( 2245 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2246 return; 2247 } 2248 2249 // Build and show a warning notification 2250 int smallIconId; 2251 String contentText; 2252 final String ownerName = getDeviceOwnerName(); 2253 if (isManagedProfile(userHandle.getIdentifier())) { 2254 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 2255 smallIconId = R.drawable.stat_sys_certificate_info; 2256 } else if (ownerName != null) { 2257 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 2258 smallIconId = R.drawable.stat_sys_certificate_info; 2259 } else { 2260 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2261 smallIconId = android.R.drawable.stat_sys_warning; 2262 } 2263 2264 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2265 dialogIntent.setFlags( 2266 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2267 dialogIntent.setPackage("com.android.settings"); 2268 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2269 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 2270 2271 final Context userContext; 2272 try { 2273 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 2274 } catch (PackageManager.NameNotFoundException e) { 2275 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2276 return; 2277 } 2278 final Notification noti = new Notification.Builder(userContext) 2279 .setSmallIcon(smallIconId) 2280 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 2281 .setContentText(contentText) 2282 .setContentIntent(notifyIntent) 2283 .setPriority(Notification.PRIORITY_HIGH) 2284 .setShowWhen(false) 2285 .setColor(mContext.getColor( 2286 com.android.internal.R.color.system_notification_accent_color)) 2287 .build(); 2288 2289 mInjector.getNotificationManager().notifyAsUser( 2290 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2291 } 2292 } 2293 2294 /** 2295 * @param adminReceiver The admin to add 2296 * @param refreshing true = update an active admin, no error 2297 */ 2298 @Override 2299 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2300 if (!mHasFeature) { 2301 return; 2302 } 2303 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2304 } 2305 2306 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2307 Bundle onEnableData) { 2308 mContext.enforceCallingOrSelfPermission( 2309 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2310 enforceCrossUserPermission(userHandle); 2311 2312 DevicePolicyData policy = getUserData(userHandle); 2313 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle); 2314 if (info == null) { 2315 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2316 } 2317 synchronized (this) { 2318 long ident = mInjector.binderClearCallingIdentity(); 2319 try { 2320 if (!refreshing 2321 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 2322 throw new IllegalArgumentException("Admin is already added"); 2323 } 2324 ActiveAdmin newAdmin = new ActiveAdmin(info); 2325 policy.mAdminMap.put(adminReceiver, newAdmin); 2326 int replaceIndex = -1; 2327 final int N = policy.mAdminList.size(); 2328 for (int i=0; i < N; i++) { 2329 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2330 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2331 replaceIndex = i; 2332 break; 2333 } 2334 } 2335 if (replaceIndex == -1) { 2336 policy.mAdminList.add(newAdmin); 2337 enableIfNecessary(info.getPackageName(), userHandle); 2338 } else { 2339 policy.mAdminList.set(replaceIndex, newAdmin); 2340 } 2341 saveSettingsLocked(userHandle); 2342 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2343 onEnableData, null); 2344 } finally { 2345 mInjector.binderRestoreCallingIdentity(ident); 2346 } 2347 } 2348 } 2349 2350 @Override 2351 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2352 if (!mHasFeature) { 2353 return false; 2354 } 2355 enforceCrossUserPermission(userHandle); 2356 synchronized (this) { 2357 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2358 } 2359 } 2360 2361 @Override 2362 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2363 if (!mHasFeature) { 2364 return false; 2365 } 2366 enforceCrossUserPermission(userHandle); 2367 synchronized (this) { 2368 DevicePolicyData policyData = getUserData(userHandle); 2369 return policyData.mRemovingAdmins.contains(adminReceiver); 2370 } 2371 } 2372 2373 @Override 2374 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2375 if (!mHasFeature) { 2376 return false; 2377 } 2378 enforceCrossUserPermission(userHandle); 2379 synchronized (this) { 2380 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2381 if (administrator == null) { 2382 throw new SecurityException("No active admin " + adminReceiver); 2383 } 2384 return administrator.info.usesPolicy(policyId); 2385 } 2386 } 2387 2388 @Override 2389 @SuppressWarnings("unchecked") 2390 public List<ComponentName> getActiveAdmins(int userHandle) { 2391 if (!mHasFeature) { 2392 return Collections.EMPTY_LIST; 2393 } 2394 2395 enforceCrossUserPermission(userHandle); 2396 synchronized (this) { 2397 DevicePolicyData policy = getUserData(userHandle); 2398 final int N = policy.mAdminList.size(); 2399 if (N <= 0) { 2400 return null; 2401 } 2402 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2403 for (int i=0; i<N; i++) { 2404 res.add(policy.mAdminList.get(i).info.getComponent()); 2405 } 2406 return res; 2407 } 2408 } 2409 2410 @Override 2411 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2412 if (!mHasFeature) { 2413 return false; 2414 } 2415 enforceCrossUserPermission(userHandle); 2416 synchronized (this) { 2417 DevicePolicyData policy = getUserData(userHandle); 2418 final int N = policy.mAdminList.size(); 2419 for (int i=0; i<N; i++) { 2420 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2421 return true; 2422 } 2423 } 2424 return false; 2425 } 2426 } 2427 2428 @Override 2429 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 2430 if (!mHasFeature) { 2431 return; 2432 } 2433 enforceCrossUserPermission(userHandle); 2434 synchronized (this) { 2435 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2436 if (admin == null) { 2437 return; 2438 } 2439 if (admin.getUid() != mInjector.binderGetCallingUid()) { 2440 // Active device owners must remain active admins. 2441 if (isDeviceOwner(adminReceiver)) { 2442 return; 2443 } 2444 mContext.enforceCallingOrSelfPermission( 2445 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2446 } 2447 long ident = mInjector.binderClearCallingIdentity(); 2448 try { 2449 removeActiveAdminLocked(adminReceiver, userHandle); 2450 } finally { 2451 mInjector.binderRestoreCallingIdentity(ident); 2452 } 2453 } 2454 } 2455 2456 @Override 2457 public void setPasswordQuality(ComponentName who, int quality) { 2458 if (!mHasFeature) { 2459 return; 2460 } 2461 Preconditions.checkNotNull(who, "ComponentName is null"); 2462 final int userHandle = UserHandle.getCallingUserId(); 2463 validateQualityConstant(quality); 2464 2465 synchronized (this) { 2466 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2467 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2468 if (ap.passwordQuality != quality) { 2469 ap.passwordQuality = quality; 2470 saveSettingsLocked(userHandle); 2471 } 2472 } 2473 } 2474 2475 @Override 2476 public int getPasswordQuality(ComponentName who, int userHandle) { 2477 if (!mHasFeature) { 2478 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2479 } 2480 enforceCrossUserPermission(userHandle); 2481 synchronized (this) { 2482 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2483 2484 if (who != null) { 2485 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2486 return admin != null ? admin.passwordQuality : mode; 2487 } 2488 2489 // Return strictest policy for this user and profiles that are visible from this user. 2490 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2491 for (UserInfo userInfo : profiles) { 2492 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2493 final int N = policy.mAdminList.size(); 2494 for (int i=0; i<N; i++) { 2495 ActiveAdmin admin = policy.mAdminList.get(i); 2496 if (mode < admin.passwordQuality) { 2497 mode = admin.passwordQuality; 2498 } 2499 } 2500 } 2501 return mode; 2502 } 2503 } 2504 2505 @Override 2506 public void setPasswordMinimumLength(ComponentName who, int length) { 2507 if (!mHasFeature) { 2508 return; 2509 } 2510 Preconditions.checkNotNull(who, "ComponentName is null"); 2511 final int userHandle = UserHandle.getCallingUserId(); 2512 synchronized (this) { 2513 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2514 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2515 if (ap.minimumPasswordLength != length) { 2516 ap.minimumPasswordLength = length; 2517 saveSettingsLocked(userHandle); 2518 } 2519 } 2520 } 2521 2522 @Override 2523 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 2524 if (!mHasFeature) { 2525 return 0; 2526 } 2527 enforceCrossUserPermission(userHandle); 2528 synchronized (this) { 2529 int length = 0; 2530 2531 if (who != null) { 2532 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2533 return admin != null ? admin.minimumPasswordLength : length; 2534 } 2535 2536 // Return strictest policy for this user and profiles that are visible from this user. 2537 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2538 for (UserInfo userInfo : profiles) { 2539 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2540 final int N = policy.mAdminList.size(); 2541 for (int i=0; i<N; i++) { 2542 ActiveAdmin admin = policy.mAdminList.get(i); 2543 if (length < admin.minimumPasswordLength) { 2544 length = admin.minimumPasswordLength; 2545 } 2546 } 2547 } 2548 return length; 2549 } 2550 } 2551 2552 @Override 2553 public void setPasswordHistoryLength(ComponentName who, int length) { 2554 if (!mHasFeature) { 2555 return; 2556 } 2557 Preconditions.checkNotNull(who, "ComponentName is null"); 2558 final int userHandle = UserHandle.getCallingUserId(); 2559 synchronized (this) { 2560 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2561 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2562 if (ap.passwordHistoryLength != length) { 2563 ap.passwordHistoryLength = length; 2564 saveSettingsLocked(userHandle); 2565 } 2566 } 2567 } 2568 2569 @Override 2570 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 2571 if (!mHasFeature) { 2572 return 0; 2573 } 2574 enforceCrossUserPermission(userHandle); 2575 synchronized (this) { 2576 int length = 0; 2577 2578 if (who != null) { 2579 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2580 return admin != null ? admin.passwordHistoryLength : length; 2581 } 2582 2583 // Return strictest policy for this user and profiles that are visible from this user. 2584 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2585 for (UserInfo userInfo : profiles) { 2586 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2587 final int N = policy.mAdminList.size(); 2588 for (int i = 0; i < N; i++) { 2589 ActiveAdmin admin = policy.mAdminList.get(i); 2590 if (length < admin.passwordHistoryLength) { 2591 length = admin.passwordHistoryLength; 2592 } 2593 } 2594 } 2595 return length; 2596 } 2597 } 2598 2599 @Override 2600 public void setPasswordExpirationTimeout(ComponentName who, long timeout) { 2601 if (!mHasFeature) { 2602 return; 2603 } 2604 Preconditions.checkNotNull(who, "ComponentName is null"); 2605 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 2606 final int userHandle = UserHandle.getCallingUserId(); 2607 synchronized (this) { 2608 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2609 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2610 // Calling this API automatically bumps the expiration date 2611 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2612 ap.passwordExpirationDate = expiration; 2613 ap.passwordExpirationTimeout = timeout; 2614 if (timeout > 0L) { 2615 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2616 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2617 .format(new Date(expiration))); 2618 } 2619 saveSettingsLocked(userHandle); 2620 // in case this is the first one 2621 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2622 } 2623 } 2624 2625 /** 2626 * Return a single admin's expiration cycle time, or the min of all cycle times. 2627 * Returns 0 if not configured. 2628 */ 2629 @Override 2630 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2631 if (!mHasFeature) { 2632 return 0L; 2633 } 2634 enforceCrossUserPermission(userHandle); 2635 synchronized (this) { 2636 long timeout = 0L; 2637 2638 if (who != null) { 2639 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2640 return admin != null ? admin.passwordExpirationTimeout : timeout; 2641 } 2642 2643 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2644 for (UserInfo userInfo : profiles) { 2645 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2646 final int N = policy.mAdminList.size(); 2647 for (int i = 0; i < N; i++) { 2648 ActiveAdmin admin = policy.mAdminList.get(i); 2649 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2650 && timeout > admin.passwordExpirationTimeout)) { 2651 timeout = admin.passwordExpirationTimeout; 2652 } 2653 } 2654 } 2655 return timeout; 2656 } 2657 } 2658 2659 @Override 2660 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2661 final int userId = UserHandle.getCallingUserId(); 2662 List<String> changedProviders = null; 2663 2664 synchronized (this) { 2665 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2666 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2667 if (activeAdmin.crossProfileWidgetProviders == null) { 2668 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2669 } 2670 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2671 if (!providers.contains(packageName)) { 2672 providers.add(packageName); 2673 changedProviders = new ArrayList<>(providers); 2674 saveSettingsLocked(userId); 2675 } 2676 } 2677 2678 if (changedProviders != null) { 2679 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2680 return true; 2681 } 2682 2683 return false; 2684 } 2685 2686 @Override 2687 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2688 final int userId = UserHandle.getCallingUserId(); 2689 List<String> changedProviders = null; 2690 2691 synchronized (this) { 2692 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2693 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2694 if (activeAdmin.crossProfileWidgetProviders == null) { 2695 return false; 2696 } 2697 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2698 if (providers.remove(packageName)) { 2699 changedProviders = new ArrayList<>(providers); 2700 saveSettingsLocked(userId); 2701 } 2702 } 2703 2704 if (changedProviders != null) { 2705 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2706 return true; 2707 } 2708 2709 return false; 2710 } 2711 2712 @Override 2713 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2714 synchronized (this) { 2715 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2716 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2717 if (activeAdmin.crossProfileWidgetProviders == null 2718 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2719 return null; 2720 } 2721 if (mInjector.binderIsCallingUidMyUid()) { 2722 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2723 } else { 2724 return activeAdmin.crossProfileWidgetProviders; 2725 } 2726 } 2727 } 2728 2729 /** 2730 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2731 * Returns 0 if not configured. 2732 */ 2733 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2734 long timeout = 0L; 2735 2736 if (who != null) { 2737 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2738 return admin != null ? admin.passwordExpirationDate : timeout; 2739 } 2740 2741 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2742 for (UserInfo userInfo : profiles) { 2743 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2744 final int N = policy.mAdminList.size(); 2745 for (int i = 0; i < N; i++) { 2746 ActiveAdmin admin = policy.mAdminList.get(i); 2747 if (timeout == 0L || (admin.passwordExpirationDate != 0 2748 && timeout > admin.passwordExpirationDate)) { 2749 timeout = admin.passwordExpirationDate; 2750 } 2751 } 2752 } 2753 return timeout; 2754 } 2755 2756 @Override 2757 public long getPasswordExpiration(ComponentName who, int userHandle) { 2758 if (!mHasFeature) { 2759 return 0L; 2760 } 2761 enforceCrossUserPermission(userHandle); 2762 synchronized (this) { 2763 return getPasswordExpirationLocked(who, userHandle); 2764 } 2765 } 2766 2767 @Override 2768 public void setPasswordMinimumUpperCase(ComponentName who, int length) { 2769 if (!mHasFeature) { 2770 return; 2771 } 2772 Preconditions.checkNotNull(who, "ComponentName is null"); 2773 final int userHandle = UserHandle.getCallingUserId(); 2774 synchronized (this) { 2775 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2776 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2777 if (ap.minimumPasswordUpperCase != length) { 2778 ap.minimumPasswordUpperCase = length; 2779 saveSettingsLocked(userHandle); 2780 } 2781 } 2782 } 2783 2784 @Override 2785 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2786 if (!mHasFeature) { 2787 return 0; 2788 } 2789 enforceCrossUserPermission(userHandle); 2790 synchronized (this) { 2791 int length = 0; 2792 2793 if (who != null) { 2794 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2795 return admin != null ? admin.minimumPasswordUpperCase : length; 2796 } 2797 2798 // Return strictest policy for this user and profiles that are visible from this user. 2799 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2800 for (UserInfo userInfo : profiles) { 2801 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2802 final int N = policy.mAdminList.size(); 2803 for (int i=0; i<N; i++) { 2804 ActiveAdmin admin = policy.mAdminList.get(i); 2805 if (length < admin.minimumPasswordUpperCase) { 2806 length = admin.minimumPasswordUpperCase; 2807 } 2808 } 2809 } 2810 return length; 2811 } 2812 } 2813 2814 @Override 2815 public void setPasswordMinimumLowerCase(ComponentName who, int length) { 2816 Preconditions.checkNotNull(who, "ComponentName is null"); 2817 final int userHandle = UserHandle.getCallingUserId(); 2818 synchronized (this) { 2819 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2820 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2821 if (ap.minimumPasswordLowerCase != length) { 2822 ap.minimumPasswordLowerCase = length; 2823 saveSettingsLocked(userHandle); 2824 } 2825 } 2826 } 2827 2828 @Override 2829 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2830 if (!mHasFeature) { 2831 return 0; 2832 } 2833 enforceCrossUserPermission(userHandle); 2834 synchronized (this) { 2835 int length = 0; 2836 2837 if (who != null) { 2838 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2839 return admin != null ? admin.minimumPasswordLowerCase : length; 2840 } 2841 2842 // Return strictest policy for this user and profiles that are visible from this user. 2843 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2844 for (UserInfo userInfo : profiles) { 2845 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2846 final int N = policy.mAdminList.size(); 2847 for (int i=0; i<N; i++) { 2848 ActiveAdmin admin = policy.mAdminList.get(i); 2849 if (length < admin.minimumPasswordLowerCase) { 2850 length = admin.minimumPasswordLowerCase; 2851 } 2852 } 2853 } 2854 return length; 2855 } 2856 } 2857 2858 @Override 2859 public void setPasswordMinimumLetters(ComponentName who, int length) { 2860 if (!mHasFeature) { 2861 return; 2862 } 2863 Preconditions.checkNotNull(who, "ComponentName is null"); 2864 final int userHandle = UserHandle.getCallingUserId(); 2865 synchronized (this) { 2866 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2867 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2868 if (ap.minimumPasswordLetters != length) { 2869 ap.minimumPasswordLetters = length; 2870 saveSettingsLocked(userHandle); 2871 } 2872 } 2873 } 2874 2875 @Override 2876 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2877 if (!mHasFeature) { 2878 return 0; 2879 } 2880 enforceCrossUserPermission(userHandle); 2881 synchronized (this) { 2882 int length = 0; 2883 2884 if (who != null) { 2885 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2886 return admin != null ? admin.minimumPasswordLetters : length; 2887 } 2888 2889 // Return strictest policy for this user and profiles that are visible from this user. 2890 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2891 for (UserInfo userInfo : profiles) { 2892 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2893 final int N = policy.mAdminList.size(); 2894 for (int i=0; i<N; i++) { 2895 ActiveAdmin admin = policy.mAdminList.get(i); 2896 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2897 continue; 2898 } 2899 if (length < admin.minimumPasswordLetters) { 2900 length = admin.minimumPasswordLetters; 2901 } 2902 } 2903 } 2904 return length; 2905 } 2906 } 2907 2908 @Override 2909 public void setPasswordMinimumNumeric(ComponentName who, int length) { 2910 if (!mHasFeature) { 2911 return; 2912 } 2913 Preconditions.checkNotNull(who, "ComponentName is null"); 2914 final int userHandle = UserHandle.getCallingUserId(); 2915 synchronized (this) { 2916 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2917 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2918 if (ap.minimumPasswordNumeric != length) { 2919 ap.minimumPasswordNumeric = length; 2920 saveSettingsLocked(userHandle); 2921 } 2922 } 2923 } 2924 2925 @Override 2926 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2927 if (!mHasFeature) { 2928 return 0; 2929 } 2930 enforceCrossUserPermission(userHandle); 2931 synchronized (this) { 2932 int length = 0; 2933 2934 if (who != null) { 2935 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2936 return admin != null ? admin.minimumPasswordNumeric : length; 2937 } 2938 2939 // Return strictest policy for this user and profiles that are visible from this user. 2940 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2941 for (UserInfo userInfo : profiles) { 2942 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2943 final int N = policy.mAdminList.size(); 2944 for (int i = 0; i < N; i++) { 2945 ActiveAdmin admin = policy.mAdminList.get(i); 2946 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2947 continue; 2948 } 2949 if (length < admin.minimumPasswordNumeric) { 2950 length = admin.minimumPasswordNumeric; 2951 } 2952 } 2953 } 2954 return length; 2955 } 2956 } 2957 2958 @Override 2959 public void setPasswordMinimumSymbols(ComponentName who, int length) { 2960 if (!mHasFeature) { 2961 return; 2962 } 2963 Preconditions.checkNotNull(who, "ComponentName is null"); 2964 final int userHandle = UserHandle.getCallingUserId(); 2965 synchronized (this) { 2966 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2967 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2968 if (ap.minimumPasswordSymbols != length) { 2969 ap.minimumPasswordSymbols = length; 2970 saveSettingsLocked(userHandle); 2971 } 2972 } 2973 } 2974 2975 @Override 2976 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 2977 if (!mHasFeature) { 2978 return 0; 2979 } 2980 enforceCrossUserPermission(userHandle); 2981 synchronized (this) { 2982 int length = 0; 2983 2984 if (who != null) { 2985 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2986 return admin != null ? admin.minimumPasswordSymbols : length; 2987 } 2988 2989 // Return strictest policy for this user and profiles that are visible from this user. 2990 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2991 for (UserInfo userInfo : profiles) { 2992 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2993 final int N = policy.mAdminList.size(); 2994 for (int i=0; i<N; i++) { 2995 ActiveAdmin admin = policy.mAdminList.get(i); 2996 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2997 continue; 2998 } 2999 if (length < admin.minimumPasswordSymbols) { 3000 length = admin.minimumPasswordSymbols; 3001 } 3002 } 3003 } 3004 return length; 3005 } 3006 } 3007 3008 @Override 3009 public void setPasswordMinimumNonLetter(ComponentName who, int length) { 3010 if (!mHasFeature) { 3011 return; 3012 } 3013 Preconditions.checkNotNull(who, "ComponentName is null"); 3014 final int userHandle = UserHandle.getCallingUserId(); 3015 synchronized (this) { 3016 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3017 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3018 if (ap.minimumPasswordNonLetter != length) { 3019 ap.minimumPasswordNonLetter = length; 3020 saveSettingsLocked(userHandle); 3021 } 3022 } 3023 } 3024 3025 @Override 3026 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 3027 if (!mHasFeature) { 3028 return 0; 3029 } 3030 enforceCrossUserPermission(userHandle); 3031 synchronized (this) { 3032 int length = 0; 3033 3034 if (who != null) { 3035 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3036 return admin != null ? admin.minimumPasswordNonLetter : length; 3037 } 3038 3039 // Return strictest policy for this user and profiles that are visible from this user. 3040 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3041 for (UserInfo userInfo : profiles) { 3042 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3043 final int N = policy.mAdminList.size(); 3044 for (int i=0; i<N; i++) { 3045 ActiveAdmin admin = policy.mAdminList.get(i); 3046 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3047 continue; 3048 } 3049 if (length < admin.minimumPasswordNonLetter) { 3050 length = admin.minimumPasswordNonLetter; 3051 } 3052 } 3053 } 3054 return length; 3055 } 3056 } 3057 3058 @Override 3059 public boolean isActivePasswordSufficient(int userHandle) { 3060 if (!mHasFeature) { 3061 return true; 3062 } 3063 enforceCrossUserPermission(userHandle); 3064 3065 synchronized (this) { 3066 3067 // The active password is stored in the user that runs the launcher 3068 // If the user this is called from is part of a profile group, that is the parent 3069 // of the group. 3070 UserInfo parent = getProfileParent(userHandle); 3071 int id = (parent == null) ? userHandle : parent.id; 3072 DevicePolicyData policy = getUserDataUnchecked(id); 3073 3074 // This API can only be called by an active device admin, 3075 // so try to retrieve it to check that the caller is one. 3076 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3077 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 3078 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 3079 return false; 3080 } 3081 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3082 return true; 3083 } 3084 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 3085 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 3086 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 3087 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 3088 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 3089 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 3090 } 3091 } 3092 3093 @Override 3094 public int getCurrentFailedPasswordAttempts(int userHandle) { 3095 synchronized (this) { 3096 // This API can only be called by an active device admin, 3097 // so try to retrieve it to check that the caller is one. 3098 getActiveAdminForCallerLocked(null, 3099 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3100 3101 // The active password is stored in the parent. 3102 UserInfo parent = getProfileParent(userHandle); 3103 int id = (parent == null) ? userHandle : parent.id; 3104 DevicePolicyData policy = getUserDataUnchecked(id); 3105 3106 return policy.mFailedPasswordAttempts; 3107 } 3108 } 3109 3110 @Override 3111 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) { 3112 if (!mHasFeature) { 3113 return; 3114 } 3115 Preconditions.checkNotNull(who, "ComponentName is null"); 3116 final int userHandle = UserHandle.getCallingUserId(); 3117 synchronized (this) { 3118 // This API can only be called by an active device admin, 3119 // so try to retrieve it to check that the caller is one. 3120 getActiveAdminForCallerLocked(who, 3121 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3122 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3123 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3124 if (ap.maximumFailedPasswordsForWipe != num) { 3125 ap.maximumFailedPasswordsForWipe = num; 3126 saveSettingsLocked(userHandle); 3127 } 3128 } 3129 } 3130 3131 @Override 3132 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 3133 if (!mHasFeature) { 3134 return 0; 3135 } 3136 enforceCrossUserPermission(userHandle); 3137 synchronized (this) { 3138 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 3139 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3140 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3141 } 3142 } 3143 3144 @Override 3145 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle) { 3146 if (!mHasFeature) { 3147 return UserHandle.USER_NULL; 3148 } 3149 enforceCrossUserPermission(userHandle); 3150 synchronized (this) { 3151 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3152 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3153 } 3154 } 3155 3156 /** 3157 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 3158 * profiles that are visible from this user. If the policy for the primary and any other profile 3159 * are equal, it returns the admin for the primary profile. 3160 * Returns {@code null} if none of them have that policy set. 3161 */ 3162 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 3163 int count = 0; 3164 ActiveAdmin strictestAdmin = null; 3165 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3166 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3167 for (ActiveAdmin admin : policy.mAdminList) { 3168 if (admin.maximumFailedPasswordsForWipe == 3169 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3170 continue; // No max number of failed passwords policy set for this profile. 3171 } 3172 3173 // We always favor the primary profile if several profiles have the same value set. 3174 if (count == 0 || 3175 count > admin.maximumFailedPasswordsForWipe || 3176 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 3177 count = admin.maximumFailedPasswordsForWipe; 3178 strictestAdmin = admin; 3179 } 3180 } 3181 } 3182 return strictestAdmin; 3183 } 3184 3185 @Override 3186 public boolean resetPassword(String passwordOrNull, int flags) { 3187 if (!mHasFeature) { 3188 return false; 3189 } 3190 final int userHandle = UserHandle.getCallingUserId(); 3191 enforceNotManagedProfile(userHandle, "reset the password"); 3192 3193 String password = passwordOrNull != null ? passwordOrNull : ""; 3194 3195 int quality; 3196 synchronized (this) { 3197 // This api can only be called by an active device admin, 3198 // so try to retrieve it to check that the caller is one. 3199 getActiveAdminForCallerLocked(null, 3200 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3201 quality = getPasswordQuality(null, userHandle); 3202 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3203 int realQuality = LockPatternUtils.computePasswordQuality(password); 3204 if (realQuality < quality 3205 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3206 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3207 + Integer.toHexString(realQuality) 3208 + " does not meet required quality 0x" 3209 + Integer.toHexString(quality)); 3210 return false; 3211 } 3212 quality = Math.max(realQuality, quality); 3213 } 3214 int length = getPasswordMinimumLength(null, userHandle); 3215 if (password.length() < length) { 3216 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3217 + " does not meet required length " + length); 3218 return false; 3219 } 3220 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3221 int letters = 0; 3222 int uppercase = 0; 3223 int lowercase = 0; 3224 int numbers = 0; 3225 int symbols = 0; 3226 int nonletter = 0; 3227 for (int i = 0; i < password.length(); i++) { 3228 char c = password.charAt(i); 3229 if (c >= 'A' && c <= 'Z') { 3230 letters++; 3231 uppercase++; 3232 } else if (c >= 'a' && c <= 'z') { 3233 letters++; 3234 lowercase++; 3235 } else if (c >= '0' && c <= '9') { 3236 numbers++; 3237 nonletter++; 3238 } else { 3239 symbols++; 3240 nonletter++; 3241 } 3242 } 3243 int neededLetters = getPasswordMinimumLetters(null, userHandle); 3244 if(letters < neededLetters) { 3245 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 3246 + " does not meet required number of letters " + neededLetters); 3247 return false; 3248 } 3249 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 3250 if (numbers < neededNumbers) { 3251 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 3252 + " does not meet required number of numerical digits " 3253 + neededNumbers); 3254 return false; 3255 } 3256 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 3257 if (lowercase < neededLowerCase) { 3258 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 3259 + " does not meet required number of lowercase letters " 3260 + neededLowerCase); 3261 return false; 3262 } 3263 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 3264 if (uppercase < neededUpperCase) { 3265 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 3266 + " does not meet required number of uppercase letters " 3267 + neededUpperCase); 3268 return false; 3269 } 3270 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 3271 if (symbols < neededSymbols) { 3272 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 3273 + " does not meet required number of special symbols " + neededSymbols); 3274 return false; 3275 } 3276 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 3277 if (nonletter < neededNonLetter) { 3278 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 3279 + " does not meet required number of non-letter characters " 3280 + neededNonLetter); 3281 return false; 3282 } 3283 } 3284 } 3285 3286 int callingUid = mInjector.binderGetCallingUid(); 3287 DevicePolicyData policy = getUserData(userHandle); 3288 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 3289 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 3290 return false; 3291 } 3292 3293 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 3294 boolean doNotAskCredentialsOnBoot = 3295 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 3296 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 3297 setDoNotAskCredentialsOnBoot(); 3298 } 3299 3300 // Don't do this with the lock held, because it is going to call 3301 // back in to the service. 3302 long ident = mInjector.binderClearCallingIdentity(); 3303 try { 3304 LockPatternUtils utils = new LockPatternUtils(mContext); 3305 if (!TextUtils.isEmpty(password)) { 3306 utils.saveLockPassword(password, null, quality, userHandle); 3307 } else { 3308 utils.clearLock(userHandle); 3309 } 3310 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 3311 if (requireEntry) { 3312 utils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 3313 UserHandle.USER_ALL); 3314 } 3315 synchronized (this) { 3316 int newOwner = requireEntry ? callingUid : -1; 3317 if (policy.mPasswordOwner != newOwner) { 3318 policy.mPasswordOwner = newOwner; 3319 saveSettingsLocked(userHandle); 3320 } 3321 } 3322 } finally { 3323 mInjector.binderRestoreCallingIdentity(ident); 3324 } 3325 3326 return true; 3327 } 3328 3329 private void setDoNotAskCredentialsOnBoot() { 3330 synchronized (this) { 3331 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3332 if (!policyData.doNotAskCredentialsOnBoot) { 3333 policyData.doNotAskCredentialsOnBoot = true; 3334 saveSettingsLocked(UserHandle.USER_SYSTEM); 3335 } 3336 } 3337 } 3338 3339 @Override 3340 public boolean getDoNotAskCredentialsOnBoot() { 3341 mContext.enforceCallingOrSelfPermission( 3342 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 3343 synchronized (this) { 3344 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3345 return policyData.doNotAskCredentialsOnBoot; 3346 } 3347 } 3348 3349 @Override 3350 public void setMaximumTimeToLock(ComponentName who, long timeMs) { 3351 if (!mHasFeature) { 3352 return; 3353 } 3354 Preconditions.checkNotNull(who, "ComponentName is null"); 3355 final int userHandle = UserHandle.getCallingUserId(); 3356 synchronized (this) { 3357 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3358 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3359 if (ap.maximumTimeToUnlock != timeMs) { 3360 ap.maximumTimeToUnlock = timeMs; 3361 saveSettingsLocked(userHandle); 3362 updateMaximumTimeToLockLocked(getUserData(userHandle)); 3363 } 3364 } 3365 } 3366 3367 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 3368 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 3369 if (policy.mLastMaximumTimeToLock == timeMs) { 3370 return; 3371 } 3372 3373 long ident = mInjector.binderClearCallingIdentity(); 3374 try { 3375 if (timeMs <= 0) { 3376 timeMs = Integer.MAX_VALUE; 3377 } else { 3378 // Make sure KEEP_SCREEN_ON is disabled, since that 3379 // would allow bypassing of the maximum time to lock. 3380 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 3381 } 3382 3383 policy.mLastMaximumTimeToLock = timeMs; 3384 // TODO It can overflow. Cap it. 3385 mInjector.getPowerManagerInternal() 3386 .setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 3387 } finally { 3388 mInjector.binderRestoreCallingIdentity(ident); 3389 } 3390 } 3391 3392 @Override 3393 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 3394 if (!mHasFeature) { 3395 return 0; 3396 } 3397 enforceCrossUserPermission(userHandle); 3398 synchronized (this) { 3399 long time = 0; 3400 3401 if (who != null) { 3402 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3403 return admin != null ? admin.maximumTimeToUnlock : time; 3404 } 3405 3406 // Return strictest policy for this user and profiles that are visible from this user. 3407 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3408 for (UserInfo userInfo : profiles) { 3409 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3410 final int N = policy.mAdminList.size(); 3411 for (int i=0; i<N; i++) { 3412 ActiveAdmin admin = policy.mAdminList.get(i); 3413 if (time == 0) { 3414 time = admin.maximumTimeToUnlock; 3415 } else if (admin.maximumTimeToUnlock != 0 3416 && time > admin.maximumTimeToUnlock) { 3417 time = admin.maximumTimeToUnlock; 3418 } 3419 } 3420 } 3421 return time; 3422 } 3423 } 3424 3425 @Override 3426 public void lockNow() { 3427 if (!mHasFeature) { 3428 return; 3429 } 3430 synchronized (this) { 3431 // This API can only be called by an active device admin, 3432 // so try to retrieve it to check that the caller is one. 3433 getActiveAdminForCallerLocked(null, 3434 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3435 lockNowUnchecked(); 3436 } 3437 } 3438 3439 private void lockNowUnchecked() { 3440 long ident = mInjector.binderClearCallingIdentity(); 3441 try { 3442 // Power off the display 3443 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 3444 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 3445 // Ensure the device is locked 3446 new LockPatternUtils(mContext).requireStrongAuth( 3447 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, UserHandle.USER_ALL); 3448 mInjector.getIWindowManager().lockNow(null); 3449 } catch (RemoteException e) { 3450 } finally { 3451 mInjector.binderRestoreCallingIdentity(ident); 3452 } 3453 } 3454 3455 @Override 3456 public void enforceCanManageCaCerts(ComponentName who) { 3457 if (who == null) { 3458 if (!isCallerDelegatedCertInstaller()) { 3459 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 3460 } 3461 } else { 3462 synchronized (this) { 3463 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3464 } 3465 } 3466 } 3467 3468 private boolean isCallerDelegatedCertInstaller() { 3469 final int callingUid = mInjector.binderGetCallingUid(); 3470 final int userHandle = UserHandle.getUserId(callingUid); 3471 synchronized (this) { 3472 final DevicePolicyData policy = getUserData(userHandle); 3473 if (policy.mDelegatedCertInstallerPackage == null) { 3474 return false; 3475 } 3476 3477 try { 3478 int uid = mContext.getPackageManager().getPackageUid( 3479 policy.mDelegatedCertInstallerPackage, userHandle); 3480 return uid == callingUid; 3481 } catch (NameNotFoundException e) { 3482 return false; 3483 } 3484 } 3485 } 3486 3487 @Override 3488 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 3489 enforceCanManageCaCerts(admin); 3490 3491 byte[] pemCert; 3492 try { 3493 X509Certificate cert = parseCert(certBuffer); 3494 pemCert = Credentials.convertToPem(cert); 3495 } catch (CertificateException ce) { 3496 Log.e(LOG_TAG, "Problem converting cert", ce); 3497 return false; 3498 } catch (IOException ioe) { 3499 Log.e(LOG_TAG, "Problem reading cert", ioe); 3500 return false; 3501 } 3502 3503 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3504 final long id = mInjector.binderClearCallingIdentity(); 3505 try { 3506 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3507 try { 3508 keyChainConnection.getService().installCaCertificate(pemCert); 3509 return true; 3510 } catch (RemoteException e) { 3511 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 3512 } finally { 3513 keyChainConnection.close(); 3514 } 3515 } catch (InterruptedException e1) { 3516 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 3517 Thread.currentThread().interrupt(); 3518 } finally { 3519 mInjector.binderRestoreCallingIdentity(id); 3520 } 3521 return false; 3522 } 3523 3524 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 3525 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 3526 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 3527 certBuffer)); 3528 } 3529 3530 @Override 3531 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 3532 enforceCanManageCaCerts(admin); 3533 3534 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3535 final long id = mInjector.binderClearCallingIdentity(); 3536 try { 3537 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3538 try { 3539 for (int i = 0 ; i < aliases.length; i++) { 3540 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 3541 } 3542 } catch (RemoteException e) { 3543 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 3544 } finally { 3545 keyChainConnection.close(); 3546 } 3547 } catch (InterruptedException ie) { 3548 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 3549 Thread.currentThread().interrupt(); 3550 } finally { 3551 mInjector.binderRestoreCallingIdentity(id); 3552 } 3553 } 3554 3555 @Override 3556 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 3557 if (who == null) { 3558 if (!isCallerDelegatedCertInstaller()) { 3559 throw new SecurityException("who == null, but caller is not cert installer"); 3560 } 3561 } else { 3562 synchronized (this) { 3563 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3564 } 3565 } 3566 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3567 final long id = mInjector.binderClearCallingIdentity(); 3568 try { 3569 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3570 try { 3571 IKeyChainService keyChain = keyChainConnection.getService(); 3572 return keyChain.installKeyPair(privKey, cert, alias); 3573 } catch (RemoteException e) { 3574 Log.e(LOG_TAG, "Installing certificate", e); 3575 } finally { 3576 keyChainConnection.close(); 3577 } 3578 } catch (InterruptedException e) { 3579 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 3580 Thread.currentThread().interrupt(); 3581 } finally { 3582 mInjector.binderRestoreCallingIdentity(id); 3583 } 3584 return false; 3585 } 3586 3587 @Override 3588 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 3589 final IBinder response) { 3590 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 3591 if (UserHandle.getAppId(mInjector.binderGetCallingUid()) != Process.SYSTEM_UID) { 3592 return; 3593 } 3594 3595 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 3596 // If there is a profile owner, redirect to that; otherwise query the device owner. 3597 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 3598 if (aliasChooser == null && caller.isSystem()) { 3599 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 3600 if (deviceOwnerAdmin != null) { 3601 aliasChooser = deviceOwnerAdmin.info.getComponent(); 3602 } 3603 } 3604 if (aliasChooser == null) { 3605 sendPrivateKeyAliasResponse(null, response); 3606 return; 3607 } 3608 3609 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 3610 intent.setComponent(aliasChooser); 3611 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 3612 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 3613 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 3614 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 3615 3616 final long id = mInjector.binderClearCallingIdentity(); 3617 try { 3618 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 3619 @Override 3620 public void onReceive(Context context, Intent intent) { 3621 final String chosenAlias = getResultData(); 3622 sendPrivateKeyAliasResponse(chosenAlias, response); 3623 } 3624 }, null, Activity.RESULT_OK, null, null); 3625 } finally { 3626 mInjector.binderRestoreCallingIdentity(id); 3627 } 3628 } 3629 3630 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 3631 final IKeyChainAliasCallback keyChainAliasResponse = 3632 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 3633 new AsyncTask<Void, Void, Void>() { 3634 @Override 3635 protected Void doInBackground(Void... unused) { 3636 try { 3637 keyChainAliasResponse.alias(alias); 3638 } catch (Exception e) { 3639 // Catch everything (not just RemoteException): caller could throw a 3640 // RuntimeException back across processes. 3641 Log.e(LOG_TAG, "error while responding to callback", e); 3642 } 3643 return null; 3644 } 3645 }.execute(); 3646 } 3647 3648 @Override 3649 public void setCertInstallerPackage(ComponentName who, String installerPackage) 3650 throws SecurityException { 3651 int userHandle = UserHandle.getCallingUserId(); 3652 synchronized (this) { 3653 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3654 DevicePolicyData policy = getUserData(userHandle); 3655 policy.mDelegatedCertInstallerPackage = installerPackage; 3656 saveSettingsLocked(userHandle); 3657 } 3658 } 3659 3660 @Override 3661 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 3662 int userHandle = UserHandle.getCallingUserId(); 3663 synchronized (this) { 3664 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3665 DevicePolicyData policy = getUserData(userHandle); 3666 return policy.mDelegatedCertInstallerPackage; 3667 } 3668 } 3669 3670 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 3671 if (wipeExtRequested) { 3672 StorageManager sm = (StorageManager) mContext.getSystemService( 3673 Context.STORAGE_SERVICE); 3674 sm.wipeAdoptableDisks(); 3675 } 3676 try { 3677 RecoverySystem.rebootWipeUserData(mContext, reason); 3678 } catch (IOException | SecurityException e) { 3679 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 3680 } 3681 } 3682 3683 @Override 3684 public void wipeData(int flags, final int userHandle) { 3685 if (!mHasFeature) { 3686 return; 3687 } 3688 enforceCrossUserPermission(userHandle); 3689 synchronized (this) { 3690 // This API can only be called by an active device admin, 3691 // so try to retrieve it to check that the caller is one. 3692 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 3693 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3694 3695 final String source = admin.info.getComponent().flattenToShortString(); 3696 3697 long ident = mInjector.binderClearCallingIdentity(); 3698 try { 3699 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 3700 if (userHandle != UserHandle.USER_SYSTEM 3701 || !isDeviceOwner(admin.info.getComponent())) { 3702 throw new SecurityException( 3703 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 3704 } 3705 PersistentDataBlockManager manager = (PersistentDataBlockManager) 3706 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 3707 if (manager != null) { 3708 manager.wipe(); 3709 } 3710 } 3711 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 3712 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 3713 "DevicePolicyManager.wipeData() from " + source); 3714 } finally { 3715 mInjector.binderRestoreCallingIdentity(ident); 3716 } 3717 } 3718 } 3719 3720 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 3721 if (userHandle == UserHandle.USER_SYSTEM) { 3722 wipeDataLocked(wipeExtRequested, reason); 3723 } else { 3724 mHandler.post(new Runnable() { 3725 @Override 3726 public void run() { 3727 try { 3728 IActivityManager am = mInjector.getIActivityManager(); 3729 if (am.getCurrentUser().id == userHandle) { 3730 am.switchUser(UserHandle.USER_SYSTEM); 3731 } 3732 3733 boolean isManagedProfile = isManagedProfile(userHandle); 3734 if (!mUserManager.removeUser(userHandle)) { 3735 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 3736 } else if (isManagedProfile) { 3737 sendWipeProfileNotification(); 3738 } 3739 } catch (RemoteException re) { 3740 // Shouldn't happen 3741 } 3742 } 3743 }); 3744 } 3745 } 3746 3747 private void sendWipeProfileNotification() { 3748 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 3749 Notification notification = new Notification.Builder(mContext) 3750 .setSmallIcon(android.R.drawable.stat_sys_warning) 3751 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 3752 .setContentText(contentText) 3753 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 3754 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 3755 .build(); 3756 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 3757 } 3758 3759 private void clearWipeProfileNotification() { 3760 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 3761 } 3762 3763 @Override 3764 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 3765 if (!mHasFeature) { 3766 return; 3767 } 3768 enforceCrossUserPermission(userHandle); 3769 mContext.enforceCallingOrSelfPermission( 3770 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3771 3772 synchronized (this) { 3773 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 3774 if (admin == null) { 3775 try { 3776 result.sendResult(null); 3777 } catch (RemoteException e) { 3778 } 3779 return; 3780 } 3781 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3782 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3783 intent.setComponent(admin.info.getComponent()); 3784 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3785 null, new BroadcastReceiver() { 3786 @Override 3787 public void onReceive(Context context, Intent intent) { 3788 try { 3789 result.sendResult(getResultExtras(false)); 3790 } catch (RemoteException e) { 3791 } 3792 } 3793 }, null, Activity.RESULT_OK, null, null); 3794 } 3795 } 3796 3797 @Override 3798 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3799 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3800 if (!mHasFeature) { 3801 return; 3802 } 3803 enforceCrossUserPermission(userHandle); 3804 // Managed Profile password can only be changed when per user encryption is present. 3805 if (!mContext.getSystemService(StorageManager.class).isPerUserEncryptionEnabled()) { 3806 enforceNotManagedProfile(userHandle, "set the active password"); 3807 } 3808 3809 mContext.enforceCallingOrSelfPermission( 3810 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3811 DevicePolicyData p = getUserData(userHandle); 3812 3813 validateQualityConstant(quality); 3814 3815 synchronized (this) { 3816 if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length 3817 || p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters 3818 || p.mActivePasswordUpperCase != uppercase 3819 || p.mActivePasswordLowerCase != lowercase 3820 || p.mActivePasswordNumeric != numbers 3821 || p.mActivePasswordSymbols != symbols 3822 || p.mActivePasswordNonLetter != nonletter) { 3823 long ident = mInjector.binderClearCallingIdentity(); 3824 try { 3825 p.mActivePasswordQuality = quality; 3826 p.mActivePasswordLength = length; 3827 p.mActivePasswordLetters = letters; 3828 p.mActivePasswordLowerCase = lowercase; 3829 p.mActivePasswordUpperCase = uppercase; 3830 p.mActivePasswordNumeric = numbers; 3831 p.mActivePasswordSymbols = symbols; 3832 p.mActivePasswordNonLetter = nonletter; 3833 p.mFailedPasswordAttempts = 0; 3834 saveSettingsLocked(userHandle); 3835 updatePasswordExpirationsLocked(userHandle); 3836 setExpirationAlarmCheckLocked(mContext, p); 3837 sendAdminCommandToSelfAndProfilesLocked( 3838 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3839 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3840 } finally { 3841 mInjector.binderRestoreCallingIdentity(ident); 3842 } 3843 } 3844 } 3845 } 3846 3847 /** 3848 * Called any time the device password is updated. Resets all password expiration clocks. 3849 */ 3850 private void updatePasswordExpirationsLocked(int userHandle) { 3851 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3852 for (UserInfo userInfo : profiles) { 3853 int profileId = userInfo.id; 3854 DevicePolicyData policy = getUserDataUnchecked(profileId); 3855 final int N = policy.mAdminList.size(); 3856 if (N > 0) { 3857 for (int i=0; i<N; i++) { 3858 ActiveAdmin admin = policy.mAdminList.get(i); 3859 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3860 long timeout = admin.passwordExpirationTimeout; 3861 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3862 admin.passwordExpirationDate = expiration; 3863 } 3864 } 3865 } 3866 saveSettingsLocked(profileId); 3867 } 3868 } 3869 3870 @Override 3871 public void reportFailedPasswordAttempt(int userHandle) { 3872 enforceCrossUserPermission(userHandle); 3873 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3874 mContext.enforceCallingOrSelfPermission( 3875 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3876 3877 long ident = mInjector.binderClearCallingIdentity(); 3878 try { 3879 boolean wipeData = false; 3880 int identifier = 0; 3881 synchronized (this) { 3882 DevicePolicyData policy = getUserData(userHandle); 3883 policy.mFailedPasswordAttempts++; 3884 saveSettingsLocked(userHandle); 3885 if (mHasFeature) { 3886 ActiveAdmin strictestAdmin = 3887 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3888 int max = strictestAdmin != null 3889 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3890 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 3891 // Wipe the user/profile associated with the policy that was violated. This 3892 // is not necessarily calling user: if the policy that fired was from a 3893 // managed profile rather than the main user profile, we wipe former only. 3894 wipeData = true; 3895 identifier = strictestAdmin.getUserHandle().getIdentifier(); 3896 } 3897 sendAdminCommandToSelfAndProfilesLocked( 3898 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 3899 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3900 } 3901 } 3902 if (wipeData) { 3903 // Call without holding lock. 3904 wipeDeviceOrUserLocked(false, identifier, 3905 "reportFailedPasswordAttempt()"); 3906 } 3907 } finally { 3908 mInjector.binderRestoreCallingIdentity(ident); 3909 } 3910 } 3911 3912 @Override 3913 public void reportSuccessfulPasswordAttempt(int userHandle) { 3914 enforceCrossUserPermission(userHandle); 3915 mContext.enforceCallingOrSelfPermission( 3916 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3917 3918 synchronized (this) { 3919 DevicePolicyData policy = getUserData(userHandle); 3920 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 3921 long ident = mInjector.binderClearCallingIdentity(); 3922 try { 3923 policy.mFailedPasswordAttempts = 0; 3924 policy.mPasswordOwner = -1; 3925 saveSettingsLocked(userHandle); 3926 if (mHasFeature) { 3927 sendAdminCommandToSelfAndProfilesLocked( 3928 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 3929 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3930 } 3931 } finally { 3932 mInjector.binderRestoreCallingIdentity(ident); 3933 } 3934 } 3935 } 3936 } 3937 3938 @Override 3939 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 3940 String exclusionList) { 3941 if (!mHasFeature) { 3942 return null; 3943 } 3944 synchronized(this) { 3945 Preconditions.checkNotNull(who, "ComponentName is null"); 3946 3947 // Only check if system user has set global proxy. We don't allow other users to set it. 3948 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 3949 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3950 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 3951 3952 // Scan through active admins and find if anyone has already 3953 // set the global proxy. 3954 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 3955 for (ComponentName component : compSet) { 3956 ActiveAdmin ap = policy.mAdminMap.get(component); 3957 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 3958 // Another admin already sets the global proxy 3959 // Return it to the caller. 3960 return component; 3961 } 3962 } 3963 3964 // If the user is not system, don't set the global proxy. Fail silently. 3965 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 3966 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 3967 + UserHandle.getCallingUserId() + " is not permitted."); 3968 return null; 3969 } 3970 if (proxySpec == null) { 3971 admin.specifiesGlobalProxy = false; 3972 admin.globalProxySpec = null; 3973 admin.globalProxyExclusionList = null; 3974 } else { 3975 3976 admin.specifiesGlobalProxy = true; 3977 admin.globalProxySpec = proxySpec; 3978 admin.globalProxyExclusionList = exclusionList; 3979 } 3980 3981 // Reset the global proxy accordingly 3982 // Do this using system permissions, as apps cannot write to secure settings 3983 long origId = mInjector.binderClearCallingIdentity(); 3984 try { 3985 resetGlobalProxyLocked(policy); 3986 } finally { 3987 mInjector.binderRestoreCallingIdentity(origId); 3988 } 3989 return null; 3990 } 3991 } 3992 3993 @Override 3994 public ComponentName getGlobalProxyAdmin(int userHandle) { 3995 if (!mHasFeature) { 3996 return null; 3997 } 3998 enforceCrossUserPermission(userHandle); 3999 synchronized(this) { 4000 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4001 // Scan through active admins and find if anyone has already 4002 // set the global proxy. 4003 final int N = policy.mAdminList.size(); 4004 for (int i = 0; i < N; i++) { 4005 ActiveAdmin ap = policy.mAdminList.get(i); 4006 if (ap.specifiesGlobalProxy) { 4007 // Device admin sets the global proxy 4008 // Return it to the caller. 4009 return ap.info.getComponent(); 4010 } 4011 } 4012 } 4013 // No device admin sets the global proxy. 4014 return null; 4015 } 4016 4017 @Override 4018 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 4019 synchronized (this) { 4020 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4021 } 4022 long token = mInjector.binderClearCallingIdentity(); 4023 try { 4024 ConnectivityManager connectivityManager = (ConnectivityManager) 4025 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4026 connectivityManager.setGlobalProxy(proxyInfo); 4027 } finally { 4028 mInjector.binderRestoreCallingIdentity(token); 4029 } 4030 } 4031 4032 private void resetGlobalProxyLocked(DevicePolicyData policy) { 4033 final int N = policy.mAdminList.size(); 4034 for (int i = 0; i < N; i++) { 4035 ActiveAdmin ap = policy.mAdminList.get(i); 4036 if (ap.specifiesGlobalProxy) { 4037 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 4038 return; 4039 } 4040 } 4041 // No device admins defining global proxies - reset global proxy settings to none 4042 saveGlobalProxyLocked(null, null); 4043 } 4044 4045 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 4046 if (exclusionList == null) { 4047 exclusionList = ""; 4048 } 4049 if (proxySpec == null) { 4050 proxySpec = ""; 4051 } 4052 // Remove white spaces 4053 proxySpec = proxySpec.trim(); 4054 String data[] = proxySpec.split(":"); 4055 int proxyPort = 8080; 4056 if (data.length > 1) { 4057 try { 4058 proxyPort = Integer.parseInt(data[1]); 4059 } catch (NumberFormatException e) {} 4060 } 4061 exclusionList = exclusionList.trim(); 4062 4063 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 4064 if (!proxyProperties.isValid()) { 4065 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 4066 return; 4067 } 4068 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 4069 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 4070 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 4071 exclusionList); 4072 } 4073 4074 /** 4075 * Set the storage encryption request for a single admin. Returns the new total request 4076 * status (for all admins). 4077 */ 4078 @Override 4079 public int setStorageEncryption(ComponentName who, boolean encrypt) { 4080 if (!mHasFeature) { 4081 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4082 } 4083 Preconditions.checkNotNull(who, "ComponentName is null"); 4084 final int userHandle = UserHandle.getCallingUserId(); 4085 synchronized (this) { 4086 // Check for permissions 4087 // Only system user can set storage encryption 4088 if (userHandle != UserHandle.USER_SYSTEM) { 4089 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 4090 + UserHandle.getCallingUserId() + " is not permitted."); 4091 return 0; 4092 } 4093 4094 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4095 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 4096 4097 // Quick exit: If the filesystem does not support encryption, we can exit early. 4098 if (!isEncryptionSupported()) { 4099 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4100 } 4101 4102 // (1) Record the value for the admin so it's sticky 4103 if (ap.encryptionRequested != encrypt) { 4104 ap.encryptionRequested = encrypt; 4105 saveSettingsLocked(userHandle); 4106 } 4107 4108 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4109 // (2) Compute "max" for all admins 4110 boolean newRequested = false; 4111 final int N = policy.mAdminList.size(); 4112 for (int i = 0; i < N; i++) { 4113 newRequested |= policy.mAdminList.get(i).encryptionRequested; 4114 } 4115 4116 // Notify OS of new request 4117 setEncryptionRequested(newRequested); 4118 4119 // Return the new global request status 4120 return newRequested 4121 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4122 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4123 } 4124 } 4125 4126 /** 4127 * Get the current storage encryption request status for a given admin, or aggregate of all 4128 * active admins. 4129 */ 4130 @Override 4131 public boolean getStorageEncryption(ComponentName who, int userHandle) { 4132 if (!mHasFeature) { 4133 return false; 4134 } 4135 enforceCrossUserPermission(userHandle); 4136 synchronized (this) { 4137 // Check for permissions if a particular caller is specified 4138 if (who != null) { 4139 // When checking for a single caller, status is based on caller's request 4140 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 4141 return ap != null ? ap.encryptionRequested : false; 4142 } 4143 4144 // If no particular caller is specified, return the aggregate set of requests. 4145 // This is short circuited by returning true on the first hit. 4146 DevicePolicyData policy = getUserData(userHandle); 4147 final int N = policy.mAdminList.size(); 4148 for (int i = 0; i < N; i++) { 4149 if (policy.mAdminList.get(i).encryptionRequested) { 4150 return true; 4151 } 4152 } 4153 return false; 4154 } 4155 } 4156 4157 /** 4158 * Get the current encryption status of the device. 4159 */ 4160 @Override 4161 public int getStorageEncryptionStatus(int userHandle) { 4162 if (!mHasFeature) { 4163 // Ok to return current status. 4164 } 4165 enforceCrossUserPermission(userHandle); 4166 return getEncryptionStatus(); 4167 } 4168 4169 /** 4170 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 4171 */ 4172 private boolean isEncryptionSupported() { 4173 // Note, this can be implemented as 4174 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4175 // But is provided as a separate internal method if there's a faster way to do a 4176 // simple check for supported-or-not. 4177 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4178 } 4179 4180 /** 4181 * Hook to low-levels: Reporting the current status of encryption. 4182 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 4183 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 4184 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, or 4185 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 4186 */ 4187 private int getEncryptionStatus() { 4188 String status = mInjector.systemPropertiesGet("ro.crypto.state", "unsupported"); 4189 if ("encrypted".equalsIgnoreCase(status)) { 4190 final long token = mInjector.binderClearCallingIdentity(); 4191 try { 4192 return LockPatternUtils.isDeviceEncrypted() 4193 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4194 : DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 4195 } finally { 4196 mInjector.binderRestoreCallingIdentity(token); 4197 } 4198 } else if ("unencrypted".equalsIgnoreCase(status)) { 4199 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4200 } else { 4201 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4202 } 4203 } 4204 4205 /** 4206 * Hook to low-levels: If needed, record the new admin setting for encryption. 4207 */ 4208 private void setEncryptionRequested(boolean encrypt) { 4209 } 4210 4211 4212 /** 4213 * Set whether the screen capture is disabled for the user managed by the specified admin. 4214 */ 4215 @Override 4216 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 4217 if (!mHasFeature) { 4218 return; 4219 } 4220 Preconditions.checkNotNull(who, "ComponentName is null"); 4221 final int userHandle = UserHandle.getCallingUserId(); 4222 synchronized (this) { 4223 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4224 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4225 if (ap.disableScreenCapture != disabled) { 4226 ap.disableScreenCapture = disabled; 4227 saveSettingsLocked(userHandle); 4228 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 4229 } 4230 } 4231 } 4232 4233 /** 4234 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 4235 * active admin (if given admin is null). 4236 */ 4237 @Override 4238 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 4239 if (!mHasFeature) { 4240 return false; 4241 } 4242 synchronized (this) { 4243 if (who != null) { 4244 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4245 return (admin != null) ? admin.disableScreenCapture : false; 4246 } 4247 4248 DevicePolicyData policy = getUserData(userHandle); 4249 final int N = policy.mAdminList.size(); 4250 for (int i = 0; i < N; i++) { 4251 ActiveAdmin admin = policy.mAdminList.get(i); 4252 if (admin.disableScreenCapture) { 4253 return true; 4254 } 4255 } 4256 return false; 4257 } 4258 } 4259 4260 private void updateScreenCaptureDisabledInWindowManager(int userHandle, boolean disabled) { 4261 long ident = mInjector.binderClearCallingIdentity(); 4262 try { 4263 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 4264 } catch (RemoteException e) { 4265 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 4266 } finally { 4267 mInjector.binderRestoreCallingIdentity(ident); 4268 } 4269 } 4270 4271 /** 4272 * Set whether auto time is required by the specified admin (must be device owner). 4273 */ 4274 @Override 4275 public void setAutoTimeRequired(ComponentName who, boolean required) { 4276 if (!mHasFeature) { 4277 return; 4278 } 4279 Preconditions.checkNotNull(who, "ComponentName is null"); 4280 final int userHandle = UserHandle.getCallingUserId(); 4281 synchronized (this) { 4282 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4283 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4284 if (admin.requireAutoTime != required) { 4285 admin.requireAutoTime = required; 4286 saveSettingsLocked(userHandle); 4287 } 4288 } 4289 4290 // Turn AUTO_TIME on in settings if it is required 4291 if (required) { 4292 long ident = mInjector.binderClearCallingIdentity(); 4293 try { 4294 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 4295 } finally { 4296 mInjector.binderRestoreCallingIdentity(ident); 4297 } 4298 } 4299 } 4300 4301 /** 4302 * Returns whether or not auto time is required by the device owner. 4303 */ 4304 @Override 4305 public boolean getAutoTimeRequired() { 4306 if (!mHasFeature) { 4307 return false; 4308 } 4309 synchronized (this) { 4310 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4311 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 4312 } 4313 } 4314 4315 /** 4316 * Disables all device cameras according to the specified admin. 4317 */ 4318 @Override 4319 public void setCameraDisabled(ComponentName who, boolean disabled) { 4320 if (!mHasFeature) { 4321 return; 4322 } 4323 Preconditions.checkNotNull(who, "ComponentName is null"); 4324 final int userHandle = UserHandle.getCallingUserId(); 4325 synchronized (this) { 4326 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4327 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 4328 if (ap.disableCamera != disabled) { 4329 ap.disableCamera = disabled; 4330 saveSettingsLocked(userHandle); 4331 } 4332 } 4333 // Tell the user manager that the restrictions have changed. 4334 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 4335 synchronized (this) { 4336 if (isDeviceOwner(who)) { 4337 mUserManagerInternal.updateEffectiveUserRestrictionsForAllUsersLR(); 4338 } else { 4339 mUserManagerInternal.updateEffectiveUserRestrictionsLR(userHandle); 4340 } 4341 } 4342 } 4343 } 4344 4345 /** 4346 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 4347 * active admins. 4348 */ 4349 @Override 4350 public boolean getCameraDisabled(ComponentName who, int userHandle) { 4351 if (!mHasFeature) { 4352 return false; 4353 } 4354 synchronized (this) { 4355 if (who != null) { 4356 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4357 return (admin != null) ? admin.disableCamera : false; 4358 } 4359 // First, see if DO has set it. If so, it's device-wide. 4360 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4361 if (deviceOwner != null && deviceOwner.disableCamera) { 4362 return true; 4363 } 4364 4365 // Then check each device admin on the user. 4366 DevicePolicyData policy = getUserData(userHandle); 4367 // Determine whether or not the device camera is disabled for any active admins. 4368 final int N = policy.mAdminList.size(); 4369 for (int i = 0; i < N; i++) { 4370 ActiveAdmin admin = policy.mAdminList.get(i); 4371 if (admin.disableCamera) { 4372 return true; 4373 } 4374 } 4375 return false; 4376 } 4377 } 4378 4379 /** 4380 * Selectively disable keyguard features. 4381 */ 4382 @Override 4383 public void setKeyguardDisabledFeatures(ComponentName who, int which) { 4384 if (!mHasFeature) { 4385 return; 4386 } 4387 Preconditions.checkNotNull(who, "ComponentName is null"); 4388 final int userHandle = UserHandle.getCallingUserId(); 4389 if (isManagedProfile(userHandle)) { 4390 which = which & PROFILE_KEYGUARD_FEATURES; 4391 } 4392 synchronized (this) { 4393 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4394 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4395 if (ap.disabledKeyguardFeatures != which) { 4396 ap.disabledKeyguardFeatures = which; 4397 saveSettingsLocked(userHandle); 4398 } 4399 } 4400 } 4401 4402 /** 4403 * Gets the disabled state for features in keyguard for the given admin, 4404 * or the aggregate of all active admins if who is null. 4405 */ 4406 @Override 4407 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 4408 if (!mHasFeature) { 4409 return 0; 4410 } 4411 enforceCrossUserPermission(userHandle); 4412 long ident = mInjector.binderClearCallingIdentity(); 4413 try { 4414 synchronized (this) { 4415 if (who != null) { 4416 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4417 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 4418 } 4419 4420 UserInfo user = mUserManager.getUserInfo(userHandle); 4421 final List<UserInfo> profiles; 4422 if (user.isManagedProfile()) { 4423 // If we are being asked about a managed profile just return 4424 // keyguard features disabled by admins in the profile. 4425 profiles = new ArrayList<UserInfo>(1); 4426 profiles.add(user); 4427 } else { 4428 // Otherwise return those set by admins in the user 4429 // and its profiles. 4430 profiles = mUserManager.getProfiles(userHandle); 4431 } 4432 4433 // Determine which keyguard features are disabled by any active admin. 4434 int which = 0; 4435 for (UserInfo userInfo : profiles) { 4436 DevicePolicyData policy = getUserData(userInfo.id); 4437 final int N = policy.mAdminList.size(); 4438 for (int i = 0; i < N; i++) { 4439 ActiveAdmin admin = policy.mAdminList.get(i); 4440 if (userInfo.id == userHandle || !userInfo.isManagedProfile()) { 4441 // If we are being asked explictly about this user 4442 // return all disabled features even if its a managed profile. 4443 which |= admin.disabledKeyguardFeatures; 4444 } else { 4445 // Otherwise a managed profile is only allowed to disable 4446 // some features on the parent user. 4447 which |= (admin.disabledKeyguardFeatures 4448 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 4449 } 4450 } 4451 } 4452 return which; 4453 } 4454 } finally { 4455 mInjector.binderRestoreCallingIdentity(ident); 4456 } 4457 } 4458 4459 @Override 4460 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 4461 if (!mHasFeature) { 4462 return false; 4463 } 4464 if (admin == null 4465 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 4466 throw new IllegalArgumentException("Invalid component " + admin 4467 + " for device owner"); 4468 } 4469 synchronized (this) { 4470 enforceCanSetDeviceOwner(userId); 4471 4472 // Shutting down backup manager service permanently. 4473 long ident = mInjector.binderClearCallingIdentity(); 4474 try { 4475 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, false); 4476 } catch (RemoteException e) { 4477 throw new IllegalStateException("Failed deactivating backup service.", e); 4478 } finally { 4479 mInjector.binderRestoreCallingIdentity(ident); 4480 } 4481 4482 mOwners.setDeviceOwner(admin, ownerName, userId); 4483 mOwners.writeDeviceOwner(); 4484 updateDeviceOwnerLocked(); 4485 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 4486 4487 ident = mInjector.binderClearCallingIdentity(); 4488 try { 4489 // TODO Send to system too? 4490 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 4491 } finally { 4492 mInjector.binderRestoreCallingIdentity(ident); 4493 } 4494 return true; 4495 } 4496 } 4497 4498 public boolean isDeviceOwner(ComponentName who) { 4499 if (!mHasFeature) { 4500 return false; 4501 } 4502 synchronized (this) { 4503 return mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerComponent().equals(who); 4504 } 4505 } 4506 4507 @Override 4508 public boolean isDeviceOwnerPackage(String packageName) { 4509 if (!mHasFeature) { 4510 return false; 4511 } 4512 synchronized (this) { 4513 return mOwners.hasDeviceOwner() 4514 && mOwners.getDeviceOwnerComponent().getPackageName().equals(packageName); 4515 } 4516 } 4517 4518 @Override 4519 public ComponentName getDeviceOwner() { 4520 if (!mHasFeature) { 4521 return null; 4522 } 4523 synchronized (this) { 4524 return mOwners.getDeviceOwnerComponent(); 4525 } 4526 } 4527 4528 @Override 4529 public String getDeviceOwnerName() { 4530 if (!mHasFeature) { 4531 return null; 4532 } 4533 // TODO: Do we really need it? getDeviceOwner() doesn't require it. 4534 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4535 synchronized (this) { 4536 if (!mOwners.hasDeviceOwner()) { 4537 return null; 4538 } 4539 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 4540 // Should setDeviceOwner/ProfileOwner still take a name? 4541 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 4542 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 4543 } 4544 } 4545 4546 // Returns the active device owner or null if there is no device owner. 4547 @VisibleForTesting 4548 ActiveAdmin getDeviceOwnerAdminLocked() { 4549 ComponentName component = getDeviceOwner(); 4550 if (component == null) { 4551 return null; 4552 } 4553 4554 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 4555 final int n = policy.mAdminList.size(); 4556 for (int i = 0; i < n; i++) { 4557 ActiveAdmin admin = policy.mAdminList.get(i); 4558 if (component.equals(admin.info.getComponent())) { 4559 return admin; 4560 } 4561 } 4562 return null; 4563 } 4564 4565 @Override 4566 public void clearDeviceOwner(String packageName) { 4567 Preconditions.checkNotNull(packageName, "packageName is null"); 4568 final int callingUid = mInjector.binderGetCallingUid(); 4569 try { 4570 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 4571 if (uid != callingUid) { 4572 throw new SecurityException("Invalid packageName"); 4573 } 4574 } catch (NameNotFoundException e) { 4575 throw new SecurityException(e); 4576 } 4577 if (!mOwners.hasDeviceOwner() || !getDeviceOwner().getPackageName().equals(packageName) 4578 || (mOwners.getDeviceOwnerUserId() != UserHandle.getUserId(callingUid))) { 4579 throw new SecurityException("clearDeviceOwner can only be called by the device owner"); 4580 } 4581 synchronized (this) { 4582 clearUserPoliciesLocked(new UserHandle(UserHandle.USER_SYSTEM)); 4583 4584 mOwners.clearDeviceOwner(); 4585 mOwners.writeDeviceOwner(); 4586 updateDeviceOwnerLocked(); 4587 // Reactivate backup service. 4588 long ident = mInjector.binderClearCallingIdentity(); 4589 try { 4590 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 4591 } catch (RemoteException e) { 4592 throw new IllegalStateException("Failed reactivating backup service.", e); 4593 } finally { 4594 mInjector.binderRestoreCallingIdentity(ident); 4595 } 4596 } 4597 } 4598 4599 @Override 4600 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 4601 if (!mHasFeature) { 4602 return false; 4603 } 4604 if (who == null 4605 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 4606 throw new IllegalArgumentException("Component " + who 4607 + " not installed for userId:" + userHandle); 4608 } 4609 synchronized (this) { 4610 enforceCanSetProfileOwner(userHandle); 4611 mOwners.setProfileOwner(who, ownerName, userHandle); 4612 mOwners.writeProfileOwner(userHandle); 4613 return true; 4614 } 4615 } 4616 4617 @Override 4618 public void clearProfileOwner(ComponentName who) { 4619 if (!mHasFeature) { 4620 return; 4621 } 4622 UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 4623 // Check if this is the profile owner who is calling 4624 final ActiveAdmin admin = 4625 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4626 synchronized (this) { 4627 admin.userRestrictions = null; 4628 clearUserPoliciesLocked(callingUser); 4629 final int userId = callingUser.getIdentifier(); 4630 mOwners.removeProfileOwner(userId); 4631 mOwners.writeProfileOwner(userId); 4632 } 4633 } 4634 4635 @Override 4636 public boolean setDeviceOwnerLockScreenInfo(ComponentName who, String info) { 4637 Preconditions.checkNotNull(who, "ComponentName is null"); 4638 if (!mHasFeature) { 4639 return false; 4640 } 4641 4642 synchronized (this) { 4643 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4644 long token = mInjector.binderClearCallingIdentity(); 4645 try { 4646 new LockPatternUtils(mContext).setDeviceOwnerInfo(info); 4647 } finally { 4648 mInjector.binderRestoreCallingIdentity(token); 4649 } 4650 return true; 4651 } 4652 } 4653 4654 @Override 4655 public String getDeviceOwnerLockScreenInfo() { 4656 return new LockPatternUtils(mContext).getDeviceOwnerInfo(); 4657 } 4658 4659 private void clearUserPoliciesLocked(UserHandle userHandle) { 4660 int userId = userHandle.getIdentifier(); 4661 // Reset some of the user-specific policies 4662 DevicePolicyData policy = getUserData(userId); 4663 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 4664 policy.mDelegatedCertInstallerPackage = null; 4665 policy.mStatusBarDisabled = false; 4666 saveSettingsLocked(userId); 4667 4668 final long ident = mInjector.binderClearCallingIdentity(); 4669 try { 4670 mIPackageManager.updatePermissionFlagsForAllApps( 4671 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 4672 0 /* flagValues */, userHandle.getIdentifier()); 4673 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 4674 mUserManagerInternal.updateEffectiveUserRestrictionsLR(userHandle.getIdentifier()); 4675 } 4676 } catch (RemoteException re) { 4677 } finally { 4678 mInjector.binderRestoreCallingIdentity(ident); 4679 } 4680 } 4681 4682 @Override 4683 public boolean hasUserSetupCompleted() { 4684 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 4685 } 4686 4687 private boolean hasUserSetupCompleted(int userHandle) { 4688 if (!mHasFeature) { 4689 return true; 4690 } 4691 return getUserData(userHandle).mUserSetupComplete; 4692 } 4693 4694 @Override 4695 public void setProfileEnabled(ComponentName who) { 4696 if (!mHasFeature) { 4697 return; 4698 } 4699 Preconditions.checkNotNull(who, "ComponentName is null"); 4700 final int userHandle = UserHandle.getCallingUserId(); 4701 synchronized (this) { 4702 // Check if this is the profile owner who is calling 4703 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4704 int userId = UserHandle.getCallingUserId(); 4705 4706 long id = mInjector.binderClearCallingIdentity(); 4707 try { 4708 mUserManager.setUserEnabled(userId); 4709 UserInfo parent = mUserManager.getProfileParent(userId); 4710 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 4711 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 4712 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 4713 Intent.FLAG_RECEIVER_FOREGROUND); 4714 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 4715 } finally { 4716 mInjector.binderRestoreCallingIdentity(id); 4717 } 4718 } 4719 } 4720 4721 @Override 4722 public void setProfileName(ComponentName who, String profileName) { 4723 Preconditions.checkNotNull(who, "ComponentName is null"); 4724 int userId = UserHandle.getCallingUserId(); 4725 // Check if this is the profile owner (includes device owner). 4726 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4727 4728 long id = mInjector.binderClearCallingIdentity(); 4729 try { 4730 mUserManager.setUserName(userId, profileName); 4731 } finally { 4732 mInjector.binderRestoreCallingIdentity(id); 4733 } 4734 } 4735 4736 @Override 4737 public ComponentName getProfileOwner(int userHandle) { 4738 if (!mHasFeature) { 4739 return null; 4740 } 4741 4742 synchronized (this) { 4743 return mOwners.getProfileOwnerComponent(userHandle); 4744 } 4745 } 4746 4747 // Returns the active profile owner for this user or null if the current user has no 4748 // profile owner. 4749 @VisibleForTesting 4750 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 4751 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 4752 if (profileOwner == null) { 4753 return null; 4754 } 4755 DevicePolicyData policy = getUserData(userHandle); 4756 final int n = policy.mAdminList.size(); 4757 for (int i = 0; i < n; i++) { 4758 ActiveAdmin admin = policy.mAdminList.get(i); 4759 if (profileOwner.equals(admin.info.getComponent())) { 4760 return admin; 4761 } 4762 } 4763 return null; 4764 } 4765 4766 @Override 4767 public String getProfileOwnerName(int userHandle) { 4768 if (!mHasFeature) { 4769 return null; 4770 } 4771 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4772 ComponentName profileOwner = getProfileOwner(userHandle); 4773 if (profileOwner == null) { 4774 return null; 4775 } 4776 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 4777 } 4778 4779 /** 4780 * Canonical name for a given package. 4781 */ 4782 private String getApplicationLabel(String packageName, int userHandle) { 4783 long token = mInjector.binderClearCallingIdentity(); 4784 try { 4785 final Context userContext; 4786 try { 4787 UserHandle handle = new UserHandle(userHandle); 4788 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 4789 } catch (PackageManager.NameNotFoundException nnfe) { 4790 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 4791 return null; 4792 } 4793 ApplicationInfo appInfo = userContext.getApplicationInfo(); 4794 CharSequence result = null; 4795 if (appInfo != null) { 4796 PackageManager pm = userContext.getPackageManager(); 4797 result = pm.getApplicationLabel(appInfo); 4798 } 4799 return result != null ? result.toString() : null; 4800 } finally { 4801 mInjector.binderRestoreCallingIdentity(token); 4802 } 4803 } 4804 4805 /** 4806 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4807 * permission. 4808 * The profile owner can only be set before the user setup phase has completed, 4809 * except for: 4810 * - SYSTEM_UID 4811 * - adb if there are not accounts. 4812 */ 4813 private void enforceCanSetProfileOwner(int userHandle) { 4814 UserInfo info = mUserManager.getUserInfo(userHandle); 4815 if (info == null) { 4816 // User doesn't exist. 4817 throw new IllegalArgumentException( 4818 "Attempted to set profile owner for invalid userId: " + userHandle); 4819 } 4820 if (info.isGuest()) { 4821 throw new IllegalStateException("Cannot set a profile owner on a guest"); 4822 } 4823 if (mOwners.hasProfileOwner(userHandle)) { 4824 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 4825 + "is already set."); 4826 } 4827 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 4828 throw new IllegalStateException("Trying to set the profile owner, but the user " 4829 + "already has a device owner."); 4830 } 4831 int callingUid = mInjector.binderGetCallingUid(); 4832 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 4833 if (hasUserSetupCompleted(userHandle) && 4834 AccountManager.get(mContext).getAccountsAsUser(userHandle).length > 0) { 4835 throw new IllegalStateException("Not allowed to set the profile owner because " 4836 + "there are already some accounts on the profile"); 4837 } 4838 return; 4839 } 4840 mContext.enforceCallingOrSelfPermission( 4841 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 4842 if (hasUserSetupCompleted(userHandle) 4843 && UserHandle.getAppId(callingUid) != Process.SYSTEM_UID) { 4844 throw new IllegalStateException("Cannot set the profile owner on a user which is " 4845 + "already set-up"); 4846 } 4847 } 4848 4849 /** 4850 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4851 * permission. 4852 * The device owner can only be set before the setup phase of the primary user has completed, 4853 * except for adb if no accounts or additional users are present on the device. 4854 */ 4855 private void enforceCanSetDeviceOwner(int userId) { 4856 if (mOwners.hasDeviceOwner()) { 4857 throw new IllegalStateException("Trying to set the device owner, but device owner " 4858 + "is already set."); 4859 } 4860 if (mOwners.hasProfileOwner(userId)) { 4861 throw new IllegalStateException("Trying to set the device owner, but the user already " 4862 + "has a profile owner."); 4863 } 4864 if (!mUserManager.isUserRunning(new UserHandle(userId))) { 4865 throw new IllegalStateException("User not running: " + userId); 4866 } 4867 4868 int callingUid = mInjector.binderGetCallingUid(); 4869 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 4870 if (!hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 4871 return; 4872 } 4873 // STOPSHIP Do proper check in split user mode 4874 if (!mInjector.userManagerIsSplitSystemUser()) { 4875 if (mUserManager.getUserCount() > 1) { 4876 throw new IllegalStateException( 4877 "Not allowed to set the device owner because there " 4878 + "are already several users on the device"); 4879 } 4880 if (AccountManager.get(mContext).getAccounts().length > 0) { 4881 throw new IllegalStateException( 4882 "Not allowed to set the device owner because there " 4883 + "are already some accounts on the device"); 4884 } 4885 } 4886 return; 4887 } 4888 // STOPSHIP check the caller UID with userId 4889 4890 mContext.enforceCallingOrSelfPermission( 4891 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 4892 // STOPSHIP Do proper check in split user mode 4893 if (!mInjector.userManagerIsSplitSystemUser()) { 4894 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 4895 throw new IllegalStateException("Cannot set the device owner if the device is " 4896 + "already set-up"); 4897 } 4898 } 4899 } 4900 4901 private void enforceCrossUserPermission(int userHandle) { 4902 if (userHandle < 0) { 4903 throw new IllegalArgumentException("Invalid userId " + userHandle); 4904 } 4905 final int callingUid = mInjector.binderGetCallingUid(); 4906 if (userHandle == UserHandle.getUserId(callingUid)) return; 4907 if (callingUid != Process.SYSTEM_UID && callingUid != 0) { 4908 mContext.enforceCallingOrSelfPermission( 4909 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 4910 + " INTERACT_ACROSS_USERS_FULL permission"); 4911 } 4912 } 4913 4914 private void enforceNotManagedProfile(int userHandle, String message) { 4915 if(isManagedProfile(userHandle)) { 4916 throw new SecurityException("You can not " + message + " for a managed profile. "); 4917 } 4918 } 4919 4920 private UserInfo getProfileParent(int userHandle) { 4921 long ident = mInjector.binderClearCallingIdentity(); 4922 try { 4923 return mUserManager.getProfileParent(userHandle); 4924 } finally { 4925 mInjector.binderRestoreCallingIdentity(ident); 4926 } 4927 } 4928 4929 private boolean isManagedProfile(int userHandle) { 4930 long ident = mInjector.binderClearCallingIdentity(); 4931 try { 4932 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 4933 } finally { 4934 mInjector.binderRestoreCallingIdentity(ident); 4935 } 4936 } 4937 4938 private void enableIfNecessary(String packageName, int userId) { 4939 try { 4940 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 4941 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 4942 userId); 4943 if (ai.enabledSetting 4944 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 4945 mIPackageManager.setApplicationEnabledSetting(packageName, 4946 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 4947 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 4948 } 4949 } catch (RemoteException e) { 4950 } 4951 } 4952 4953 @Override 4954 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 4955 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 4956 != PackageManager.PERMISSION_GRANTED) { 4957 4958 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 4959 + mInjector.binderGetCallingPid() 4960 + ", uid=" + mInjector.binderGetCallingUid()); 4961 return; 4962 } 4963 4964 final Printer p = new PrintWriterPrinter(pw); 4965 4966 synchronized (this) { 4967 p.println("Current Device Policy Manager state:"); 4968 mOwners.dump(" ", pw); 4969 int userCount = mUserData.size(); 4970 for (int u = 0; u < userCount; u++) { 4971 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 4972 p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 4973 final int N = policy.mAdminList.size(); 4974 for (int i=0; i<N; i++) { 4975 ActiveAdmin ap = policy.mAdminList.get(i); 4976 if (ap != null) { 4977 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 4978 pw.println(":"); 4979 ap.dump(" ", pw); 4980 } 4981 } 4982 if (!policy.mRemovingAdmins.isEmpty()) { 4983 p.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 4984 + policy.mRemovingAdmins); 4985 } 4986 4987 pw.println(" "); 4988 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 4989 } 4990 } 4991 } 4992 4993 @Override 4994 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 4995 ComponentName activity) { 4996 Preconditions.checkNotNull(who, "ComponentName is null"); 4997 final int userHandle = UserHandle.getCallingUserId(); 4998 synchronized (this) { 4999 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5000 5001 long id = mInjector.binderClearCallingIdentity(); 5002 try { 5003 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 5004 } catch (RemoteException re) { 5005 // Shouldn't happen 5006 } finally { 5007 mInjector.binderRestoreCallingIdentity(id); 5008 } 5009 } 5010 } 5011 5012 @Override 5013 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 5014 Preconditions.checkNotNull(who, "ComponentName is null"); 5015 final int userHandle = UserHandle.getCallingUserId(); 5016 synchronized (this) { 5017 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5018 5019 long id = mInjector.binderClearCallingIdentity(); 5020 try { 5021 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 5022 } catch (RemoteException re) { 5023 // Shouldn't happen 5024 } finally { 5025 mInjector.binderRestoreCallingIdentity(id); 5026 } 5027 } 5028 } 5029 5030 @Override 5031 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 5032 Preconditions.checkNotNull(who, "ComponentName is null"); 5033 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5034 synchronized (this) { 5035 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5036 5037 long id = mInjector.binderClearCallingIdentity(); 5038 try { 5039 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 5040 } finally { 5041 mInjector.binderRestoreCallingIdentity(id); 5042 } 5043 } 5044 } 5045 5046 @Override 5047 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 5048 PersistableBundle args) { 5049 if (!mHasFeature) { 5050 return; 5051 } 5052 Preconditions.checkNotNull(admin, "admin is null"); 5053 Preconditions.checkNotNull(agent, "agent is null"); 5054 final int userHandle = UserHandle.getCallingUserId(); 5055 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 5056 synchronized (this) { 5057 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 5058 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 5059 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 5060 saveSettingsLocked(userHandle); 5061 } 5062 } 5063 5064 @Override 5065 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 5066 ComponentName agent, int userHandle) { 5067 if (!mHasFeature) { 5068 return null; 5069 } 5070 Preconditions.checkNotNull(agent, "agent null"); 5071 enforceCrossUserPermission(userHandle); 5072 5073 synchronized (this) { 5074 final String componentName = agent.flattenToString(); 5075 if (admin != null) { 5076 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 5077 if (ap == null) return null; 5078 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 5079 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 5080 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 5081 result.add(trustAgentInfo.options); 5082 return result; 5083 } 5084 5085 // Return strictest policy for this user and profiles that are visible from this user. 5086 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 5087 List<PersistableBundle> result = null; 5088 5089 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 5090 // of the options. If any admin doesn't have options, discard options for the rest 5091 // and return null. 5092 boolean allAdminsHaveOptions = true; 5093 for (UserInfo userInfo : profiles) { 5094 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 5095 final int N = policy.mAdminList.size(); 5096 for (int i=0; i < N; i++) { 5097 final ActiveAdmin active = policy.mAdminList.get(i); 5098 final boolean disablesTrust = (active.disabledKeyguardFeatures 5099 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 5100 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 5101 if (info != null && info.options != null && !info.options.isEmpty()) { 5102 if (disablesTrust) { 5103 if (result == null) { 5104 result = new ArrayList<PersistableBundle>(); 5105 } 5106 result.add(info.options); 5107 } else { 5108 Log.w(LOG_TAG, "Ignoring admin " + active.info 5109 + " because it has trust options but doesn't declare " 5110 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 5111 } 5112 } else if (disablesTrust) { 5113 allAdminsHaveOptions = false; 5114 break; 5115 } 5116 } 5117 } 5118 return allAdminsHaveOptions ? result : null; 5119 } 5120 } 5121 5122 @Override 5123 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 5124 Preconditions.checkNotNull(who, "ComponentName is null"); 5125 synchronized (this) { 5126 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5127 5128 int userHandle = UserHandle.getCallingUserId(); 5129 DevicePolicyData userData = getUserData(userHandle); 5130 userData.mRestrictionsProvider = permissionProvider; 5131 saveSettingsLocked(userHandle); 5132 } 5133 } 5134 5135 @Override 5136 public ComponentName getRestrictionsProvider(int userHandle) { 5137 synchronized (this) { 5138 if (mInjector.binderGetCallingUid() != Process.SYSTEM_UID) { 5139 throw new SecurityException("Only the system can query the permission provider"); 5140 } 5141 DevicePolicyData userData = getUserData(userHandle); 5142 return userData != null ? userData.mRestrictionsProvider : null; 5143 } 5144 } 5145 5146 @Override 5147 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 5148 Preconditions.checkNotNull(who, "ComponentName is null"); 5149 int callingUserId = UserHandle.getCallingUserId(); 5150 synchronized (this) { 5151 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5152 5153 long id = mInjector.binderClearCallingIdentity(); 5154 try { 5155 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5156 if (parent == null) { 5157 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 5158 + "parent"); 5159 return; 5160 } 5161 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 5162 mIPackageManager.addCrossProfileIntentFilter( 5163 filter, who.getPackageName(), callingUserId, parent.id, 0); 5164 } 5165 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 5166 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 5167 parent.id, callingUserId, 0); 5168 } 5169 } catch (RemoteException re) { 5170 // Shouldn't happen 5171 } finally { 5172 mInjector.binderRestoreCallingIdentity(id); 5173 } 5174 } 5175 } 5176 5177 @Override 5178 public void clearCrossProfileIntentFilters(ComponentName who) { 5179 Preconditions.checkNotNull(who, "ComponentName is null"); 5180 int callingUserId = UserHandle.getCallingUserId(); 5181 synchronized (this) { 5182 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5183 long id = mInjector.binderClearCallingIdentity(); 5184 try { 5185 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5186 if (parent == null) { 5187 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 5188 + "parent"); 5189 return; 5190 } 5191 // Removing those that go from the managed profile to the parent. 5192 mIPackageManager.clearCrossProfileIntentFilters( 5193 callingUserId, who.getPackageName()); 5194 // And those that go from the parent to the managed profile. 5195 // If we want to support multiple managed profiles, we will have to only remove 5196 // those that have callingUserId as their target. 5197 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 5198 } catch (RemoteException re) { 5199 // Shouldn't happen 5200 } finally { 5201 mInjector.binderRestoreCallingIdentity(id); 5202 } 5203 } 5204 } 5205 5206 /** 5207 * @return true if all packages in enabledPackages are either in the list 5208 * permittedList or are a system app. 5209 */ 5210 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 5211 List<String> permittedList) { 5212 int userIdToCheck = UserHandle.getCallingUserId(); 5213 long id = mInjector.binderClearCallingIdentity(); 5214 try { 5215 // If we have an enabled packages list for a managed profile the packages 5216 // we should check are installed for the parent user. 5217 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 5218 if (user.isManagedProfile()) { 5219 userIdToCheck = user.profileGroupId; 5220 } 5221 5222 for (String enabledPackage : enabledPackages) { 5223 boolean systemService = false; 5224 try { 5225 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 5226 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 5227 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5228 } catch (RemoteException e) { 5229 Log.i(LOG_TAG, "Can't talk to package managed", e); 5230 } 5231 if (!systemService && !permittedList.contains(enabledPackage)) { 5232 return false; 5233 } 5234 } 5235 } finally { 5236 mInjector.binderRestoreCallingIdentity(id); 5237 } 5238 return true; 5239 } 5240 5241 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 5242 // Not using AccessibilityManager.getInstance because that guesses 5243 // at the user you require based on callingUid and caches for a given 5244 // process. 5245 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 5246 IAccessibilityManager service = iBinder == null 5247 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 5248 return new AccessibilityManager(mContext, service, userId); 5249 } 5250 5251 @Override 5252 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 5253 if (!mHasFeature) { 5254 return false; 5255 } 5256 Preconditions.checkNotNull(who, "ComponentName is null"); 5257 5258 if (packageList != null) { 5259 int userId = UserHandle.getCallingUserId(); 5260 List<AccessibilityServiceInfo> enabledServices = null; 5261 long id = mInjector.binderClearCallingIdentity(); 5262 try { 5263 UserInfo user = mUserManager.getUserInfo(userId); 5264 if (user.isManagedProfile()) { 5265 userId = user.profileGroupId; 5266 } 5267 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 5268 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 5269 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 5270 } finally { 5271 mInjector.binderRestoreCallingIdentity(id); 5272 } 5273 5274 if (enabledServices != null) { 5275 List<String> enabledPackages = new ArrayList<String>(); 5276 for (AccessibilityServiceInfo service : enabledServices) { 5277 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 5278 } 5279 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5280 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 5281 + "because it contains already enabled accesibility services."); 5282 return false; 5283 } 5284 } 5285 } 5286 5287 synchronized (this) { 5288 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5289 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5290 admin.permittedAccessiblityServices = packageList; 5291 saveSettingsLocked(UserHandle.getCallingUserId()); 5292 } 5293 return true; 5294 } 5295 5296 @Override 5297 public List getPermittedAccessibilityServices(ComponentName who) { 5298 if (!mHasFeature) { 5299 return null; 5300 } 5301 Preconditions.checkNotNull(who, "ComponentName is null"); 5302 5303 synchronized (this) { 5304 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5305 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5306 return admin.permittedAccessiblityServices; 5307 } 5308 } 5309 5310 @Override 5311 public List getPermittedAccessibilityServicesForUser(int userId) { 5312 if (!mHasFeature) { 5313 return null; 5314 } 5315 synchronized (this) { 5316 List<String> result = null; 5317 // If we have multiple profiles we return the intersection of the 5318 // permitted lists. This can happen in cases where we have a device 5319 // and profile owner. 5320 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5321 final int PROFILES_SIZE = profiles.size(); 5322 for (int i = 0; i < PROFILES_SIZE; ++i) { 5323 // Just loop though all admins, only device or profiles 5324 // owners can have permitted lists set. 5325 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5326 final int N = policy.mAdminList.size(); 5327 for (int j = 0; j < N; j++) { 5328 ActiveAdmin admin = policy.mAdminList.get(j); 5329 List<String> fromAdmin = admin.permittedAccessiblityServices; 5330 if (fromAdmin != null) { 5331 if (result == null) { 5332 result = new ArrayList<String>(fromAdmin); 5333 } else { 5334 result.retainAll(fromAdmin); 5335 } 5336 } 5337 } 5338 } 5339 5340 // If we have a permitted list add all system accessibility services. 5341 if (result != null) { 5342 long id = mInjector.binderClearCallingIdentity(); 5343 try { 5344 UserInfo user = mUserManager.getUserInfo(userId); 5345 if (user.isManagedProfile()) { 5346 userId = user.profileGroupId; 5347 } 5348 AccessibilityManager accessibilityManager = 5349 getAccessibilityManagerForUser(userId); 5350 List<AccessibilityServiceInfo> installedServices = 5351 accessibilityManager.getInstalledAccessibilityServiceList(); 5352 5353 if (installedServices != null) { 5354 for (AccessibilityServiceInfo service : installedServices) { 5355 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 5356 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5357 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5358 result.add(serviceInfo.packageName); 5359 } 5360 } 5361 } 5362 } finally { 5363 mInjector.binderRestoreCallingIdentity(id); 5364 } 5365 } 5366 5367 return result; 5368 } 5369 } 5370 5371 private boolean checkCallerIsCurrentUserOrProfile() { 5372 int callingUserId = UserHandle.getCallingUserId(); 5373 long token = mInjector.binderClearCallingIdentity(); 5374 try { 5375 UserInfo currentUser; 5376 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 5377 try { 5378 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5379 } catch (RemoteException e) { 5380 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 5381 return false; 5382 } 5383 5384 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 5385 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 5386 + "of a user that isn't the foreground user."); 5387 return false; 5388 } 5389 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 5390 Slog.e(LOG_TAG, "Cannot set permitted input methods " 5391 + "of a user that isn't the foreground user."); 5392 return false; 5393 } 5394 } finally { 5395 mInjector.binderRestoreCallingIdentity(token); 5396 } 5397 return true; 5398 } 5399 5400 @Override 5401 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 5402 if (!mHasFeature) { 5403 return false; 5404 } 5405 Preconditions.checkNotNull(who, "ComponentName is null"); 5406 5407 // TODO When InputMethodManager supports per user calls remove 5408 // this restriction. 5409 if (!checkCallerIsCurrentUserOrProfile()) { 5410 return false; 5411 } 5412 5413 if (packageList != null) { 5414 // InputMethodManager fetches input methods for current user. 5415 // So this can only be set when calling user is the current user 5416 // or parent is current user in case of managed profiles. 5417 InputMethodManager inputMethodManager = (InputMethodManager) mContext 5418 .getSystemService(Context.INPUT_METHOD_SERVICE); 5419 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 5420 5421 if (enabledImes != null) { 5422 List<String> enabledPackages = new ArrayList<String>(); 5423 for (InputMethodInfo ime : enabledImes) { 5424 enabledPackages.add(ime.getPackageName()); 5425 } 5426 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5427 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 5428 + "because it contains already enabled input method."); 5429 return false; 5430 } 5431 } 5432 } 5433 5434 synchronized (this) { 5435 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5436 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5437 admin.permittedInputMethods = packageList; 5438 saveSettingsLocked(UserHandle.getCallingUserId()); 5439 } 5440 return true; 5441 } 5442 5443 @Override 5444 public List getPermittedInputMethods(ComponentName who) { 5445 if (!mHasFeature) { 5446 return null; 5447 } 5448 Preconditions.checkNotNull(who, "ComponentName is null"); 5449 5450 synchronized (this) { 5451 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5452 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5453 return admin.permittedInputMethods; 5454 } 5455 } 5456 5457 @Override 5458 public List getPermittedInputMethodsForCurrentUser() { 5459 UserInfo currentUser; 5460 try { 5461 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5462 } catch (RemoteException e) { 5463 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 5464 // Activity managed is dead, just allow all IMEs 5465 return null; 5466 } 5467 5468 int userId = currentUser.id; 5469 synchronized (this) { 5470 List<String> result = null; 5471 // If we have multiple profiles we return the intersection of the 5472 // permitted lists. This can happen in cases where we have a device 5473 // and profile owner. 5474 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5475 final int PROFILES_SIZE = profiles.size(); 5476 for (int i = 0; i < PROFILES_SIZE; ++i) { 5477 // Just loop though all admins, only device or profiles 5478 // owners can have permitted lists set. 5479 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5480 final int N = policy.mAdminList.size(); 5481 for (int j = 0; j < N; j++) { 5482 ActiveAdmin admin = policy.mAdminList.get(j); 5483 List<String> fromAdmin = admin.permittedInputMethods; 5484 if (fromAdmin != null) { 5485 if (result == null) { 5486 result = new ArrayList<String>(fromAdmin); 5487 } else { 5488 result.retainAll(fromAdmin); 5489 } 5490 } 5491 } 5492 } 5493 5494 // If we have a permitted list add all system input methods. 5495 if (result != null) { 5496 InputMethodManager inputMethodManager = (InputMethodManager) mContext 5497 .getSystemService(Context.INPUT_METHOD_SERVICE); 5498 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 5499 long id = mInjector.binderClearCallingIdentity(); 5500 try { 5501 if (imes != null) { 5502 for (InputMethodInfo ime : imes) { 5503 ServiceInfo serviceInfo = ime.getServiceInfo(); 5504 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5505 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5506 result.add(serviceInfo.packageName); 5507 } 5508 } 5509 } 5510 } finally { 5511 mInjector.binderRestoreCallingIdentity(id); 5512 } 5513 } 5514 return result; 5515 } 5516 } 5517 5518 @Override 5519 public UserHandle createUser(ComponentName who, String name) { 5520 Preconditions.checkNotNull(who, "ComponentName is null"); 5521 synchronized (this) { 5522 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5523 5524 long id = mInjector.binderClearCallingIdentity(); 5525 try { 5526 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 5527 if (userInfo != null) { 5528 return userInfo.getUserHandle(); 5529 } 5530 return null; 5531 } finally { 5532 mInjector.binderRestoreCallingIdentity(id); 5533 } 5534 } 5535 } 5536 5537 @Override 5538 public UserHandle createAndInitializeUser(ComponentName who, String name, 5539 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 5540 UserHandle user = createUser(who, name); 5541 if (user == null) { 5542 return null; 5543 } 5544 long id = mInjector.binderClearCallingIdentity(); 5545 try { 5546 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 5547 5548 final int userHandle = user.getIdentifier(); 5549 try { 5550 // Install the profile owner if not present. 5551 if (!mIPackageManager.isPackageAvailable(profileOwnerPkg, userHandle)) { 5552 mIPackageManager.installExistingPackageAsUser(profileOwnerPkg, userHandle); 5553 } 5554 5555 // Start user in background. 5556 mInjector.getIActivityManager().startUserInBackground(userHandle); 5557 } catch (RemoteException e) { 5558 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 5559 } 5560 5561 setActiveAdmin(profileOwnerComponent, true, userHandle, adminExtras); 5562 setProfileOwner(profileOwnerComponent, ownerName, userHandle); 5563 return user; 5564 } finally { 5565 mInjector.binderRestoreCallingIdentity(id); 5566 } 5567 } 5568 5569 @Override 5570 public boolean removeUser(ComponentName who, UserHandle userHandle) { 5571 Preconditions.checkNotNull(who, "ComponentName is null"); 5572 synchronized (this) { 5573 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5574 5575 long id = mInjector.binderClearCallingIdentity(); 5576 try { 5577 return mUserManager.removeUser(userHandle.getIdentifier()); 5578 } finally { 5579 mInjector.binderRestoreCallingIdentity(id); 5580 } 5581 } 5582 } 5583 5584 @Override 5585 public boolean switchUser(ComponentName who, UserHandle userHandle) { 5586 Preconditions.checkNotNull(who, "ComponentName is null"); 5587 synchronized (this) { 5588 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5589 5590 long id = mInjector.binderClearCallingIdentity(); 5591 try { 5592 int userId = UserHandle.USER_SYSTEM; 5593 if (userHandle != null) { 5594 userId = userHandle.getIdentifier(); 5595 } 5596 return mInjector.getIActivityManager().switchUser(userId); 5597 } catch (RemoteException e) { 5598 Log.e(LOG_TAG, "Couldn't switch user", e); 5599 return false; 5600 } finally { 5601 mInjector.binderRestoreCallingIdentity(id); 5602 } 5603 } 5604 } 5605 5606 @Override 5607 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 5608 Preconditions.checkNotNull(who, "ComponentName is null"); 5609 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5610 5611 synchronized (this) { 5612 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5613 5614 long id = mInjector.binderClearCallingIdentity(); 5615 try { 5616 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 5617 // if no restrictions were saved, mUserManager.getApplicationRestrictions 5618 // returns null, but DPM method should return an empty Bundle as per JavaDoc 5619 return bundle != null ? bundle : Bundle.EMPTY; 5620 } finally { 5621 mInjector.binderRestoreCallingIdentity(id); 5622 } 5623 } 5624 } 5625 5626 // DO NOT call it while taking the "this" lock, which could cause a dead lock. 5627 @Override 5628 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 5629 Preconditions.checkNotNull(who, "ComponentName is null"); 5630 final int userHandle = mInjector.userHandleGetCallingUserId(); 5631 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 5632 synchronized (this) { 5633 ActiveAdmin activeAdmin = 5634 getActiveAdminForCallerLocked(who, 5635 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5636 final boolean isDeviceOwner = isDeviceOwner(who); 5637 if (!isDeviceOwner && userHandle != UserHandle.USER_SYSTEM 5638 && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) { 5639 throw new SecurityException( 5640 "Profile owners cannot set user restriction " + key); 5641 } 5642 if (IMMUTABLE_USER_RESTRICTIONS.contains(key)) { 5643 throw new SecurityException("User restriction " + key + " cannot be changed"); 5644 } 5645 5646 final long id = mInjector.binderClearCallingIdentity(); 5647 try { 5648 // Save the restriction to ActiveAdmin. 5649 // TODO When DO sets a restriction, it'll always be treated as device-wide. 5650 // If there'll be a policy that can be set by both, we'll need scoping support, 5651 // and need to have another Bundle in DO active admin to hold restrictions as 5652 // PO. 5653 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 5654 saveSettingsLocked(userHandle); 5655 5656 // Tell UserManager the new value. 5657 if (isDeviceOwner) { 5658 mUserManagerInternal.updateEffectiveUserRestrictionsForAllUsersLR(); 5659 } else { 5660 mUserManagerInternal.updateEffectiveUserRestrictionsLR(userHandle); 5661 } 5662 } finally { 5663 mInjector.binderRestoreCallingIdentity(id); 5664 } 5665 5666 sendChangedNotification(userHandle); 5667 } 5668 } 5669 } 5670 5671 @Override 5672 public Bundle getUserRestrictions(ComponentName who) { 5673 Preconditions.checkNotNull(who, "ComponentName is null"); 5674 synchronized (this) { 5675 final ActiveAdmin activeAdmin = 5676 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5677 return activeAdmin.userRestrictions; 5678 } 5679 } 5680 5681 @Override 5682 public boolean setApplicationHidden(ComponentName who, String packageName, 5683 boolean hidden) { 5684 Preconditions.checkNotNull(who, "ComponentName is null"); 5685 int callingUserId = UserHandle.getCallingUserId(); 5686 synchronized (this) { 5687 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5688 5689 long id = mInjector.binderClearCallingIdentity(); 5690 try { 5691 return mIPackageManager.setApplicationHiddenSettingAsUser( 5692 packageName, hidden, callingUserId); 5693 } catch (RemoteException re) { 5694 // shouldn't happen 5695 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 5696 } finally { 5697 mInjector.binderRestoreCallingIdentity(id); 5698 } 5699 return false; 5700 } 5701 } 5702 5703 @Override 5704 public boolean isApplicationHidden(ComponentName who, String packageName) { 5705 Preconditions.checkNotNull(who, "ComponentName is null"); 5706 int callingUserId = UserHandle.getCallingUserId(); 5707 synchronized (this) { 5708 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5709 5710 long id = mInjector.binderClearCallingIdentity(); 5711 try { 5712 return mIPackageManager.getApplicationHiddenSettingAsUser( 5713 packageName, callingUserId); 5714 } catch (RemoteException re) { 5715 // shouldn't happen 5716 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 5717 } finally { 5718 mInjector.binderRestoreCallingIdentity(id); 5719 } 5720 return false; 5721 } 5722 } 5723 5724 @Override 5725 public void enableSystemApp(ComponentName who, String packageName) { 5726 Preconditions.checkNotNull(who, "ComponentName is null"); 5727 synchronized (this) { 5728 // This API can only be called by an active device admin, 5729 // so try to retrieve it to check that the caller is one. 5730 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5731 5732 int userId = UserHandle.getCallingUserId(); 5733 long id = mInjector.binderClearCallingIdentity(); 5734 5735 try { 5736 if (VERBOSE_LOG) { 5737 Slog.v(LOG_TAG, "installing " + packageName + " for " 5738 + userId); 5739 } 5740 5741 UserManager um = UserManager.get(mContext); 5742 UserInfo primaryUser = um.getProfileParent(userId); 5743 5744 // Call did not come from a managed profile 5745 if (primaryUser == null) { 5746 primaryUser = um.getUserInfo(userId); 5747 } 5748 5749 if (!isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 5750 throw new IllegalArgumentException("Only system apps can be enabled this way."); 5751 } 5752 5753 // Install the app. 5754 mIPackageManager.installExistingPackageAsUser(packageName, userId); 5755 5756 } catch (RemoteException re) { 5757 // shouldn't happen 5758 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 5759 } finally { 5760 mInjector.binderRestoreCallingIdentity(id); 5761 } 5762 } 5763 } 5764 5765 @Override 5766 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 5767 Preconditions.checkNotNull(who, "ComponentName is null"); 5768 synchronized (this) { 5769 // This API can only be called by an active device admin, 5770 // so try to retrieve it to check that the caller is one. 5771 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5772 5773 int userId = UserHandle.getCallingUserId(); 5774 long id = mInjector.binderClearCallingIdentity(); 5775 5776 try { 5777 UserManager um = UserManager.get(mContext); 5778 UserInfo primaryUser = um.getProfileParent(userId); 5779 5780 // Call did not come from a managed profile. 5781 if (primaryUser == null) { 5782 primaryUser = um.getUserInfo(userId); 5783 } 5784 5785 List<ResolveInfo> activitiesToEnable = mIPackageManager.queryIntentActivities( 5786 intent, 5787 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 5788 0, // no flags 5789 primaryUser.id); 5790 5791 if (VERBOSE_LOG) { 5792 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 5793 } 5794 int numberOfAppsInstalled = 0; 5795 if (activitiesToEnable != null) { 5796 for (ResolveInfo info : activitiesToEnable) { 5797 if (info.activityInfo != null) { 5798 String packageName = info.activityInfo.packageName; 5799 if (isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 5800 numberOfAppsInstalled++; 5801 mIPackageManager.installExistingPackageAsUser(packageName, userId); 5802 } else { 5803 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 5804 + " system app"); 5805 } 5806 } 5807 } 5808 } 5809 return numberOfAppsInstalled; 5810 } catch (RemoteException e) { 5811 // shouldn't happen 5812 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 5813 return 0; 5814 } finally { 5815 mInjector.binderRestoreCallingIdentity(id); 5816 } 5817 } 5818 } 5819 5820 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 5821 throws RemoteException { 5822 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 5823 userId); 5824 if (appInfo == null) { 5825 throw new IllegalArgumentException("The application " + packageName + 5826 " is not present on this device"); 5827 } 5828 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5829 } 5830 5831 @Override 5832 public void setAccountManagementDisabled(ComponentName who, String accountType, 5833 boolean disabled) { 5834 if (!mHasFeature) { 5835 return; 5836 } 5837 Preconditions.checkNotNull(who, "ComponentName is null"); 5838 synchronized (this) { 5839 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5840 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5841 if (disabled) { 5842 ap.accountTypesWithManagementDisabled.add(accountType); 5843 } else { 5844 ap.accountTypesWithManagementDisabled.remove(accountType); 5845 } 5846 saveSettingsLocked(UserHandle.getCallingUserId()); 5847 } 5848 } 5849 5850 @Override 5851 public String[] getAccountTypesWithManagementDisabled() { 5852 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 5853 } 5854 5855 @Override 5856 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 5857 enforceCrossUserPermission(userId); 5858 if (!mHasFeature) { 5859 return null; 5860 } 5861 synchronized (this) { 5862 DevicePolicyData policy = getUserData(userId); 5863 final int N = policy.mAdminList.size(); 5864 ArraySet<String> resultSet = new ArraySet<>(); 5865 for (int i = 0; i < N; i++) { 5866 ActiveAdmin admin = policy.mAdminList.get(i); 5867 resultSet.addAll(admin.accountTypesWithManagementDisabled); 5868 } 5869 return resultSet.toArray(new String[resultSet.size()]); 5870 } 5871 } 5872 5873 @Override 5874 public void setUninstallBlocked(ComponentName who, String packageName, 5875 boolean uninstallBlocked) { 5876 Preconditions.checkNotNull(who, "ComponentName is null"); 5877 final int userId = UserHandle.getCallingUserId(); 5878 synchronized (this) { 5879 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5880 5881 long id = mInjector.binderClearCallingIdentity(); 5882 try { 5883 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 5884 } catch (RemoteException re) { 5885 // Shouldn't happen. 5886 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 5887 } finally { 5888 mInjector.binderRestoreCallingIdentity(id); 5889 } 5890 } 5891 } 5892 5893 @Override 5894 public boolean isUninstallBlocked(ComponentName who, String packageName) { 5895 // This function should return true if and only if the package is blocked by 5896 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 5897 // when the package is a system app, or when it is an active device admin. 5898 final int userId = UserHandle.getCallingUserId(); 5899 5900 synchronized (this) { 5901 if (who != null) { 5902 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5903 } 5904 5905 long id = mInjector.binderClearCallingIdentity(); 5906 try { 5907 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 5908 } catch (RemoteException re) { 5909 // Shouldn't happen. 5910 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 5911 } finally { 5912 mInjector.binderRestoreCallingIdentity(id); 5913 } 5914 } 5915 return false; 5916 } 5917 5918 @Override 5919 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 5920 if (!mHasFeature) { 5921 return; 5922 } 5923 Preconditions.checkNotNull(who, "ComponentName is null"); 5924 synchronized (this) { 5925 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5926 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5927 if (admin.disableCallerId != disabled) { 5928 admin.disableCallerId = disabled; 5929 saveSettingsLocked(UserHandle.getCallingUserId()); 5930 } 5931 } 5932 } 5933 5934 @Override 5935 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 5936 if (!mHasFeature) { 5937 return false; 5938 } 5939 Preconditions.checkNotNull(who, "ComponentName is null"); 5940 synchronized (this) { 5941 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5942 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5943 return admin.disableCallerId; 5944 } 5945 } 5946 5947 @Override 5948 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 5949 // TODO: Should there be a check to make sure this relationship is within a profile group? 5950 //enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 5951 synchronized (this) { 5952 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 5953 return (admin != null) ? admin.disableCallerId : false; 5954 } 5955 } 5956 5957 @Override 5958 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 5959 Intent originalIntent) { 5960 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent( 5961 actualLookupKey, actualContactId, originalIntent); 5962 final int callingUserId = UserHandle.getCallingUserId(); 5963 5964 final long ident = mInjector.binderClearCallingIdentity(); 5965 try { 5966 synchronized (this) { 5967 final int managedUserId = getManagedUserId(callingUserId); 5968 if (managedUserId < 0) { 5969 return; 5970 } 5971 if (getCrossProfileCallerIdDisabledForUser(managedUserId)) { 5972 if (VERBOSE_LOG) { 5973 Log.v(LOG_TAG, 5974 "Cross-profile contacts access disabled for user " + managedUserId); 5975 } 5976 return; 5977 } 5978 ContactsInternal.startQuickContactWithErrorToastForUser( 5979 mContext, intent, new UserHandle(managedUserId)); 5980 } 5981 } finally { 5982 mInjector.binderRestoreCallingIdentity(ident); 5983 } 5984 } 5985 5986 /** 5987 * @return the user ID of the managed user that is linked to the current user, if any. 5988 * Otherwise -1. 5989 */ 5990 public int getManagedUserId(int callingUserId) { 5991 if (VERBOSE_LOG) { 5992 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 5993 } 5994 5995 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 5996 if (ui.id == callingUserId || !ui.isManagedProfile()) { 5997 continue; // Caller user self, or not a managed profile. Skip. 5998 } 5999 if (VERBOSE_LOG) { 6000 Log.v(LOG_TAG, "Managed user=" + ui.id); 6001 } 6002 return ui.id; 6003 } 6004 if (VERBOSE_LOG) { 6005 Log.v(LOG_TAG, "Managed user not found."); 6006 } 6007 return -1; 6008 } 6009 6010 @Override 6011 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 6012 if (!mHasFeature) { 6013 return; 6014 } 6015 Preconditions.checkNotNull(who, "ComponentName is null"); 6016 synchronized (this) { 6017 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6018 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6019 if (admin.disableBluetoothContactSharing != disabled) { 6020 admin.disableBluetoothContactSharing = disabled; 6021 saveSettingsLocked(UserHandle.getCallingUserId()); 6022 } 6023 } 6024 } 6025 6026 @Override 6027 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 6028 if (!mHasFeature) { 6029 return false; 6030 } 6031 Preconditions.checkNotNull(who, "ComponentName is null"); 6032 synchronized (this) { 6033 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6034 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6035 return admin.disableBluetoothContactSharing; 6036 } 6037 } 6038 6039 @Override 6040 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 6041 // TODO: Should there be a check to make sure this relationship is 6042 // within a profile group? 6043 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 6044 synchronized (this) { 6045 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 6046 return (admin != null) ? admin.disableBluetoothContactSharing : false; 6047 } 6048 } 6049 6050 /** 6051 * Sets which packages may enter lock task mode. 6052 * 6053 * This function can only be called by the device owner. 6054 * @param packages The list of packages allowed to enter lock task mode. 6055 */ 6056 @Override 6057 public void setLockTaskPackages(ComponentName who, String[] packages) 6058 throws SecurityException { 6059 Preconditions.checkNotNull(who, "ComponentName is null"); 6060 synchronized (this) { 6061 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6062 6063 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6064 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 6065 } 6066 } 6067 6068 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 6069 DevicePolicyData policy = getUserData(userHandle); 6070 policy.mLockTaskPackages = packages; 6071 6072 // Store the settings persistently. 6073 saveSettingsLocked(userHandle); 6074 updateLockTaskPackagesLocked(packages, userHandle); 6075 } 6076 6077 /** 6078 * This function returns the list of components allowed to start the task lock mode. 6079 */ 6080 @Override 6081 public String[] getLockTaskPackages(ComponentName who) { 6082 Preconditions.checkNotNull(who, "ComponentName is null"); 6083 synchronized (this) { 6084 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6085 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6086 final List<String> packages = getLockTaskPackagesLocked(userHandle); 6087 return packages.toArray(new String[packages.size()]); 6088 } 6089 } 6090 6091 private List<String> getLockTaskPackagesLocked(int userHandle) { 6092 final DevicePolicyData policy = getUserData(userHandle); 6093 return policy.mLockTaskPackages; 6094 } 6095 6096 /** 6097 * This function lets the caller know whether the given package is allowed to start the 6098 * lock task mode. 6099 * @param pkg The package to check 6100 */ 6101 @Override 6102 public boolean isLockTaskPermitted(String pkg) { 6103 // Get current user's devicepolicy 6104 int uid = mInjector.binderGetCallingUid(); 6105 int userHandle = UserHandle.getUserId(uid); 6106 DevicePolicyData policy = getUserData(userHandle); 6107 synchronized (this) { 6108 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 6109 String lockTaskPackage = policy.mLockTaskPackages.get(i); 6110 6111 // If the given package equals one of the packages stored our list, 6112 // we allow this package to start lock task mode. 6113 if (lockTaskPackage.equals(pkg)) { 6114 return true; 6115 } 6116 } 6117 } 6118 return false; 6119 } 6120 6121 @Override 6122 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 6123 if (mInjector.binderGetCallingUid() != Process.SYSTEM_UID) { 6124 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 6125 } 6126 synchronized (this) { 6127 final DevicePolicyData policy = getUserData(userHandle); 6128 Bundle adminExtras = new Bundle(); 6129 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 6130 for (ActiveAdmin admin : policy.mAdminList) { 6131 boolean ownsDevice = isDeviceOwner(admin.info.getComponent()); 6132 boolean ownsProfile = (getProfileOwner(userHandle) != null 6133 && getProfileOwner(userHandle).equals(admin.info.getPackageName())); 6134 if (ownsDevice || ownsProfile) { 6135 if (isEnabled) { 6136 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 6137 adminExtras, null); 6138 } else { 6139 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 6140 } 6141 } 6142 } 6143 } 6144 } 6145 6146 @Override 6147 public void setGlobalSetting(ComponentName who, String setting, String value) { 6148 Preconditions.checkNotNull(who, "ComponentName is null"); 6149 6150 synchronized (this) { 6151 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6152 6153 // Some settings are no supported any more. However we do not want to throw a 6154 // SecurityException to avoid breaking apps. 6155 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 6156 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 6157 return; 6158 } 6159 6160 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 6161 throw new SecurityException(String.format( 6162 "Permission denial: device owners cannot update %1$s", setting)); 6163 } 6164 6165 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 6166 // ignore if it contradicts an existing policy 6167 long timeMs = getMaximumTimeToLock(who, UserHandle.getCallingUserId()); 6168 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 6169 return; 6170 } 6171 } 6172 6173 long id = mInjector.binderClearCallingIdentity(); 6174 try { 6175 mInjector.settingsGlobalPutString(setting, value); 6176 } finally { 6177 mInjector.binderRestoreCallingIdentity(id); 6178 } 6179 } 6180 } 6181 6182 @Override 6183 public void setSecureSetting(ComponentName who, String setting, String value) { 6184 Preconditions.checkNotNull(who, "ComponentName is null"); 6185 int callingUserId = UserHandle.getCallingUserId(); 6186 final ContentResolver contentResolver = mContext.getContentResolver(); 6187 6188 synchronized (this) { 6189 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6190 6191 if (isDeviceOwner(who)) { 6192 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 6193 throw new SecurityException(String.format( 6194 "Permission denial: Device owners cannot update %1$s", setting)); 6195 } 6196 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 6197 throw new SecurityException(String.format( 6198 "Permission denial: Profile owners cannot update %1$s", setting)); 6199 } 6200 6201 long id = mInjector.binderClearCallingIdentity(); 6202 try { 6203 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 6204 } finally { 6205 mInjector.binderRestoreCallingIdentity(id); 6206 } 6207 } 6208 } 6209 6210 @Override 6211 public void setMasterVolumeMuted(ComponentName who, boolean on) { 6212 Preconditions.checkNotNull(who, "ComponentName is null"); 6213 synchronized (this) { 6214 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6215 int userId = UserHandle.getCallingUserId(); 6216 long identity = mInjector.binderClearCallingIdentity(); 6217 try { 6218 IAudioService iAudioService = IAudioService.Stub.asInterface( 6219 ServiceManager.getService(Context.AUDIO_SERVICE)); 6220 iAudioService.setMasterMute(on, 0, mContext.getPackageName(), userId); 6221 } catch (RemoteException re) { 6222 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 6223 } finally { 6224 mInjector.binderRestoreCallingIdentity(identity); 6225 } 6226 } 6227 } 6228 6229 @Override 6230 public boolean isMasterVolumeMuted(ComponentName who) { 6231 Preconditions.checkNotNull(who, "ComponentName is null"); 6232 synchronized (this) { 6233 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6234 6235 AudioManager audioManager = 6236 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 6237 return audioManager.isMasterMute(); 6238 } 6239 } 6240 6241 @Override 6242 public void setUserIcon(ComponentName who, Bitmap icon) { 6243 synchronized (this) { 6244 Preconditions.checkNotNull(who, "ComponentName is null"); 6245 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6246 6247 int userId = UserHandle.getCallingUserId(); 6248 long id = mInjector.binderClearCallingIdentity(); 6249 try { 6250 mUserManager.setUserIcon(userId, icon); 6251 } finally { 6252 mInjector.binderRestoreCallingIdentity(id); 6253 } 6254 } 6255 } 6256 6257 @Override 6258 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 6259 Preconditions.checkNotNull(who, "ComponentName is null"); 6260 synchronized (this) { 6261 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6262 } 6263 final int userId = UserHandle.getCallingUserId(); 6264 LockPatternUtils utils = new LockPatternUtils(mContext); 6265 6266 long ident = mInjector.binderClearCallingIdentity(); 6267 try { 6268 // disallow disabling the keyguard if a password is currently set 6269 if (disabled && utils.isSecure(userId)) { 6270 return false; 6271 } 6272 utils.setLockScreenDisabled(disabled, userId); 6273 } finally { 6274 mInjector.binderRestoreCallingIdentity(ident); 6275 } 6276 return true; 6277 } 6278 6279 @Override 6280 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 6281 int userId = UserHandle.getCallingUserId(); 6282 synchronized (this) { 6283 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6284 DevicePolicyData policy = getUserData(userId); 6285 if (policy.mStatusBarDisabled != disabled) { 6286 if (!setStatusBarDisabledInternal(disabled, userId)) { 6287 return false; 6288 } 6289 policy.mStatusBarDisabled = disabled; 6290 saveSettingsLocked(userId); 6291 } 6292 } 6293 return true; 6294 } 6295 6296 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 6297 long ident = mInjector.binderClearCallingIdentity(); 6298 try { 6299 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 6300 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 6301 if (statusBarService != null) { 6302 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 6303 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 6304 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 6305 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 6306 return true; 6307 } 6308 } catch (RemoteException e) { 6309 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 6310 } finally { 6311 mInjector.binderRestoreCallingIdentity(ident); 6312 } 6313 return false; 6314 } 6315 6316 /** 6317 * We need to update the internal state of whether a user has completed setup once. After 6318 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 6319 * as we don't trust any apps that might try to reset it. 6320 * <p> 6321 * Unfortunately, we don't know which user's setup state was changed, so we write all of 6322 * them. 6323 */ 6324 void updateUserSetupComplete() { 6325 List<UserInfo> users = mUserManager.getUsers(true); 6326 final int N = users.size(); 6327 for (int i = 0; i < N; i++) { 6328 int userHandle = users.get(i).id; 6329 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 6330 userHandle) != 0) { 6331 DevicePolicyData policy = getUserData(userHandle); 6332 if (!policy.mUserSetupComplete) { 6333 policy.mUserSetupComplete = true; 6334 synchronized (this) { 6335 saveSettingsLocked(userHandle); 6336 } 6337 } 6338 } 6339 } 6340 } 6341 6342 private class SetupContentObserver extends ContentObserver { 6343 6344 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 6345 Settings.Secure.USER_SETUP_COMPLETE); 6346 6347 public SetupContentObserver(Handler handler) { 6348 super(handler); 6349 } 6350 6351 void register(ContentResolver resolver) { 6352 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 6353 } 6354 6355 @Override 6356 public void onChange(boolean selfChange, Uri uri) { 6357 if (mUserSetupComplete.equals(uri)) { 6358 updateUserSetupComplete(); 6359 } 6360 } 6361 } 6362 6363 @VisibleForTesting 6364 final class LocalService extends DevicePolicyManagerInternal { 6365 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 6366 6367 @Override 6368 public List<String> getCrossProfileWidgetProviders(int profileId) { 6369 synchronized (DevicePolicyManagerService.this) { 6370 if (mOwners == null) { 6371 return Collections.emptyList(); 6372 } 6373 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 6374 if (ownerComponent == null) { 6375 return Collections.emptyList(); 6376 } 6377 6378 DevicePolicyData policy = getUserDataUnchecked(profileId); 6379 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 6380 6381 if (admin == null || admin.crossProfileWidgetProviders == null 6382 || admin.crossProfileWidgetProviders.isEmpty()) { 6383 return Collections.emptyList(); 6384 } 6385 6386 return admin.crossProfileWidgetProviders; 6387 } 6388 } 6389 6390 @Override 6391 public void addOnCrossProfileWidgetProvidersChangeListener( 6392 OnCrossProfileWidgetProvidersChangeListener listener) { 6393 synchronized (DevicePolicyManagerService.this) { 6394 if (mWidgetProviderListeners == null) { 6395 mWidgetProviderListeners = new ArrayList<>(); 6396 } 6397 if (!mWidgetProviderListeners.contains(listener)) { 6398 mWidgetProviderListeners.add(listener); 6399 } 6400 } 6401 } 6402 6403 @Override 6404 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 6405 final int userId = UserHandle.getUserId(uid); 6406 synchronized(DevicePolicyManagerService.this) { 6407 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 6408 } 6409 } 6410 6411 @Override 6412 public Bundle getComposedUserRestrictions(int userId, Bundle inBundle) { 6413 synchronized (DevicePolicyManagerService.this) { 6414 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6415 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 6416 6417 final Bundle deviceOwnerRestrictions = 6418 deviceOwner == null ? null : deviceOwner.userRestrictions; 6419 final Bundle profileOwnerRestrictions = 6420 profileOwner == null ? null : profileOwner.userRestrictions; 6421 final boolean cameraDisabled = getCameraDisabled(null, userId); 6422 6423 if (deviceOwnerRestrictions == null && profileOwnerRestrictions == null 6424 && !cameraDisabled) { 6425 // No restrictions to merge. 6426 return inBundle; 6427 } 6428 6429 final Bundle composed = new Bundle(inBundle); 6430 UserRestrictionsUtils.merge(composed, deviceOwnerRestrictions); 6431 UserRestrictionsUtils.merge(composed, profileOwnerRestrictions); 6432 6433 // Also merge in the camera restriction. 6434 if (cameraDisabled) { 6435 composed.putBoolean(UserManager.DISALLOW_CAMERA, true); 6436 } 6437 6438 return composed; 6439 } 6440 } 6441 6442 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 6443 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 6444 synchronized (DevicePolicyManagerService.this) { 6445 listeners = new ArrayList<>(mWidgetProviderListeners); 6446 } 6447 final int listenerCount = listeners.size(); 6448 for (int i = 0; i < listenerCount; i++) { 6449 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 6450 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 6451 } 6452 } 6453 } 6454 6455 /** 6456 * Returns true if specified admin is allowed to limit passwords and has a 6457 * {@code passwordQuality} of at least {@code minPasswordQuality} 6458 */ 6459 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 6460 if (admin.passwordQuality < minPasswordQuality) { 6461 return false; 6462 } 6463 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 6464 } 6465 6466 @Override 6467 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 6468 if (policy != null && !policy.isValid()) { 6469 throw new IllegalArgumentException("Invalid system update policy."); 6470 } 6471 synchronized (this) { 6472 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6473 if (policy == null) { 6474 mOwners.clearSystemUpdatePolicy(); 6475 } else { 6476 mOwners.setSystemUpdatePolicy(policy); 6477 } 6478 mOwners.writeDeviceOwner(); 6479 } 6480 mContext.sendBroadcastAsUser( 6481 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 6482 UserHandle.SYSTEM); 6483 } 6484 6485 @Override 6486 public SystemUpdatePolicy getSystemUpdatePolicy() { 6487 synchronized (this) { 6488 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 6489 if (policy != null && !policy.isValid()) { 6490 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 6491 return null; 6492 } 6493 return policy; 6494 } 6495 } 6496 6497 /** 6498 * Checks if the caller of the method is the device owner app. 6499 * 6500 * @param callerUid UID of the caller. 6501 * @return true if the caller is the device owner app 6502 */ 6503 private boolean isCallerDeviceOwner(int callerUid) { 6504 String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 6505 for (String pkg : pkgs) { 6506 if (isDeviceOwnerPackage(pkg)) { 6507 return true; 6508 } 6509 } 6510 return false; 6511 } 6512 6513 @Override 6514 public void notifyPendingSystemUpdate(long updateReceivedTime) { 6515 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 6516 "Only the system update service can broadcast update information"); 6517 6518 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 6519 Slog.w(LOG_TAG, "Only the system update service in the system user " + 6520 "can broadcast update information."); 6521 return; 6522 } 6523 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 6524 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 6525 updateReceivedTime); 6526 6527 synchronized (this) { 6528 final String deviceOwnerPackage = getDeviceOwner() == null ? null : 6529 getDeviceOwner().getPackageName(); 6530 if (deviceOwnerPackage == null) { 6531 return; 6532 } 6533 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 6534 6535 ActivityInfo[] receivers = null; 6536 try { 6537 receivers = mContext.getPackageManager().getPackageInfo( 6538 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 6539 } catch (NameNotFoundException e) { 6540 Log.e(LOG_TAG, "Cannot find device owner package", e); 6541 } 6542 if (receivers != null) { 6543 long ident = mInjector.binderClearCallingIdentity(); 6544 try { 6545 for (int i = 0; i < receivers.length; i++) { 6546 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 6547 intent.setComponent(new ComponentName(deviceOwnerPackage, 6548 receivers[i].name)); 6549 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 6550 } 6551 } 6552 } finally { 6553 mInjector.binderRestoreCallingIdentity(ident); 6554 } 6555 } 6556 } 6557 } 6558 6559 @Override 6560 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 6561 int userId = UserHandle.getCallingUserId(); 6562 synchronized (this) { 6563 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6564 DevicePolicyData userPolicy = getUserData(userId); 6565 if (userPolicy.mPermissionPolicy != policy) { 6566 userPolicy.mPermissionPolicy = policy; 6567 saveSettingsLocked(userId); 6568 } 6569 } 6570 } 6571 6572 @Override 6573 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 6574 int userId = UserHandle.getCallingUserId(); 6575 synchronized (this) { 6576 DevicePolicyData userPolicy = getUserData(userId); 6577 return userPolicy.mPermissionPolicy; 6578 } 6579 } 6580 6581 @Override 6582 public boolean setPermissionGrantState(ComponentName admin, String packageName, 6583 String permission, int grantState) throws RemoteException { 6584 UserHandle user = mInjector.binderGetCallingUserHandle(); 6585 synchronized (this) { 6586 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6587 long ident = mInjector.binderClearCallingIdentity(); 6588 try { 6589 final ApplicationInfo ai = mIPackageManager 6590 .getApplicationInfo(packageName, 0, user.getIdentifier()); 6591 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 6592 if (targetSdkVersion < android.os.Build.VERSION_CODES.M) { 6593 return false; 6594 } 6595 final PackageManager packageManager = mContext.getPackageManager(); 6596 switch (grantState) { 6597 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 6598 packageManager.grantRuntimePermission(packageName, permission, user); 6599 packageManager.updatePermissionFlags(permission, packageName, 6600 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6601 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6602 } break; 6603 6604 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 6605 packageManager.revokeRuntimePermission(packageName, 6606 permission, user); 6607 packageManager.updatePermissionFlags(permission, packageName, 6608 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6609 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6610 } break; 6611 6612 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 6613 packageManager.updatePermissionFlags(permission, packageName, 6614 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 6615 } break; 6616 } 6617 return true; 6618 } catch (SecurityException se) { 6619 return false; 6620 } finally { 6621 mInjector.binderRestoreCallingIdentity(ident); 6622 } 6623 } 6624 } 6625 6626 @Override 6627 public int getPermissionGrantState(ComponentName admin, String packageName, 6628 String permission) throws RemoteException { 6629 PackageManager packageManager = mContext.getPackageManager(); 6630 6631 UserHandle user = mInjector.binderGetCallingUserHandle(); 6632 synchronized (this) { 6633 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6634 long ident = mInjector.binderClearCallingIdentity(); 6635 try { 6636 int granted = mIPackageManager.checkPermission(permission, 6637 packageName, user.getIdentifier()); 6638 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 6639 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 6640 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 6641 // Not controlled by policy 6642 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 6643 } else { 6644 // Policy controlled so return result based on permission grant state 6645 return granted == PackageManager.PERMISSION_GRANTED 6646 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 6647 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 6648 } 6649 } finally { 6650 mInjector.binderRestoreCallingIdentity(ident); 6651 } 6652 } 6653 } 6654 6655 boolean isPackageInstalledForUser(String packageName, int userHandle) { 6656 try { 6657 PackageInfo pi = mIPackageManager.getPackageInfo(packageName, 0, userHandle); 6658 return (pi != null) && (pi.applicationInfo.flags != 0); 6659 } catch (RemoteException re) { 6660 throw new RuntimeException("Package manager has died", re); 6661 } 6662 } 6663} 6664