DevicePolicyManagerService.java revision f76b06a6b546f430cf85e561858ed12eedc32b81
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.devicepolicy; 18 19import static android.Manifest.permission.MANAGE_CA_CERTIFICATES; 20import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 21import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 22import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 23import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES; 24import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 25import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 26import static org.xmlpull.v1.XmlPullParser.END_TAG; 27import static org.xmlpull.v1.XmlPullParser.TEXT; 28 29import android.Manifest.permission; 30import android.accessibilityservice.AccessibilityServiceInfo; 31import android.accounts.AccountManager; 32import android.app.Activity; 33import android.app.ActivityManagerNative; 34import android.app.AlarmManager; 35import android.app.AppGlobals; 36import android.app.IActivityManager; 37import android.app.Notification; 38import android.app.NotificationManager; 39import android.app.PendingIntent; 40import android.app.StatusBarManager; 41import android.app.admin.DeviceAdminInfo; 42import android.app.admin.DeviceAdminReceiver; 43import android.app.admin.DevicePolicyManager; 44import android.app.admin.DevicePolicyManagerInternal; 45import android.app.admin.IDevicePolicyManager; 46import android.app.admin.SystemUpdatePolicy; 47import android.app.backup.IBackupManager; 48import android.content.BroadcastReceiver; 49import android.content.ComponentName; 50import android.content.ContentResolver; 51import android.content.Context; 52import android.content.Intent; 53import android.content.IntentFilter; 54import android.content.pm.ActivityInfo; 55import android.content.pm.ApplicationInfo; 56import android.content.pm.IPackageManager; 57import android.content.pm.PackageManager; 58import android.content.pm.PackageManager.NameNotFoundException; 59import android.content.pm.ResolveInfo; 60import android.content.pm.ServiceInfo; 61import android.content.pm.UserInfo; 62import android.database.ContentObserver; 63import android.graphics.Bitmap; 64import android.media.AudioManager; 65import android.media.IAudioService; 66import android.net.ConnectivityManager; 67import android.net.ProxyInfo; 68import android.net.Uri; 69import android.os.AsyncTask; 70import android.os.Binder; 71import android.os.Bundle; 72import android.os.Environment; 73import android.os.FileUtils; 74import android.os.Handler; 75import android.os.IBinder; 76import android.os.Looper; 77import android.os.PersistableBundle; 78import android.os.PowerManager; 79import android.os.PowerManager.WakeLock; 80import android.os.PowerManagerInternal; 81import android.os.Process; 82import android.os.RecoverySystem; 83import android.os.RemoteCallback; 84import android.os.RemoteException; 85import android.os.ServiceManager; 86import android.os.SystemClock; 87import android.os.SystemProperties; 88import android.os.UserHandle; 89import android.os.UserManager; 90import android.os.storage.StorageManager; 91import android.provider.ContactsContract.QuickContact; 92import android.provider.ContactsInternal; 93import android.provider.Settings; 94import android.security.Credentials; 95import android.security.IKeyChainAliasCallback; 96import android.security.IKeyChainService; 97import android.security.KeyChain; 98import android.security.KeyChain.KeyChainConnection; 99import android.service.persistentdata.PersistentDataBlockManager; 100import android.text.TextUtils; 101import android.util.ArrayMap; 102import android.util.ArraySet; 103import android.util.Log; 104import android.util.PrintWriterPrinter; 105import android.util.Printer; 106import android.util.Slog; 107import android.util.SparseArray; 108import android.util.Xml; 109import android.view.IWindowManager; 110import android.view.accessibility.AccessibilityManager; 111import android.view.accessibility.IAccessibilityManager; 112import android.view.inputmethod.InputMethodInfo; 113import android.view.inputmethod.InputMethodManager; 114 115import com.android.internal.R; 116import com.android.internal.annotations.VisibleForTesting; 117import com.android.internal.statusbar.IStatusBarService; 118import com.android.internal.util.FastXmlSerializer; 119import com.android.internal.util.JournaledFile; 120import com.android.internal.util.Preconditions; 121import com.android.internal.util.XmlUtils; 122import com.android.internal.widget.LockPatternUtils; 123import com.android.server.LocalServices; 124import com.android.server.SystemService; 125import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 126 127import org.xmlpull.v1.XmlPullParser; 128import org.xmlpull.v1.XmlPullParserException; 129import org.xmlpull.v1.XmlSerializer; 130 131import java.io.ByteArrayInputStream; 132import java.io.File; 133import java.io.FileDescriptor; 134import java.io.FileInputStream; 135import java.io.FileNotFoundException; 136import java.io.FileOutputStream; 137import java.io.IOException; 138import java.io.PrintWriter; 139import java.nio.charset.StandardCharsets; 140import java.security.cert.CertificateException; 141import java.security.cert.CertificateFactory; 142import java.security.cert.X509Certificate; 143import java.text.DateFormat; 144import java.util.ArrayList; 145import java.util.Arrays; 146import java.util.Collections; 147import java.util.Date; 148import java.util.List; 149import java.util.Map.Entry; 150import java.util.Set; 151 152/** 153 * Implementation of the device policy APIs. 154 */ 155public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 156 157 private static final String LOG_TAG = "DevicePolicyManagerService"; 158 159 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 160 161 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 162 163 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 164 165 private static final String TAG_STATUS_BAR = "statusbar"; 166 167 private static final String ATTR_DISABLED = "disabled"; 168 169 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 170 "do-not-ask-credentials-on-boot"; 171 172 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 173 174 private static final long MS_PER_DAY = 86400 * 1000; 175 176 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 177 178 protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 179 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 180 181 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 182 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 183 184 private static final boolean DBG = false; 185 186 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 187 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 188 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 189 190 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 191 192 private static final int STATUS_BAR_DISABLE_MASK = 193 StatusBarManager.DISABLE_EXPAND | 194 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 195 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 196 StatusBarManager.DISABLE_SEARCH; 197 198 private static final int STATUS_BAR_DISABLE2_MASK = 199 StatusBarManager.DISABLE2_QUICK_SETTINGS; 200 201 private static final Set<String> DEVICE_OWNER_USER_RESTRICTIONS; 202 static { 203 DEVICE_OWNER_USER_RESTRICTIONS = new ArraySet<>(); 204 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_USB_FILE_TRANSFER); 205 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_TETHERING); 206 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_NETWORK_RESET); 207 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_FACTORY_RESET); 208 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADD_USER); 209 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_CELL_BROADCASTS); 210 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS); 211 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_MOUNT_PHYSICAL_MEDIA); 212 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_UNMUTE_MICROPHONE); 213 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADJUST_VOLUME); 214 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SMS); 215 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_FUN); 216 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SAFE_BOOT); 217 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CREATE_WINDOWS); 218 } 219 220 // The following user restrictions cannot be changed by any active admin, including device 221 // owner and profile owner. 222 private static final Set<String> IMMUTABLE_USER_RESTRICTIONS; 223 static { 224 IMMUTABLE_USER_RESTRICTIONS = new ArraySet<>(); 225 IMMUTABLE_USER_RESTRICTIONS.add(UserManager.DISALLOW_WALLPAPER); 226 } 227 228 private static final Set<String> SECURE_SETTINGS_WHITELIST; 229 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 230 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 231 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 232 static { 233 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 234 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 235 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 236 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 237 238 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 239 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 240 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 241 242 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 243 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 244 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 245 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 246 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 247 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 248 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 249 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 250 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 251 252 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 253 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 254 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 255 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 256 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 257 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 258 } 259 260 // Keyguard features that when set of a profile will affect the profiles 261 // parent user. 262 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 263 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 264 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 265 266 // Keyguard features that are allowed to be set on a managed profile 267 private static final int PROFILE_KEYGUARD_FEATURES = 268 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER 269 | DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 270 271 final Context mContext; 272 final PackageManager mPackageManager; 273 final UserManager mUserManager; 274 275 final LocalService mLocalService; 276 277 final PowerManagerInternal mPowerManagerInternal; 278 279 final IWindowManager mIWindowManager; 280 final NotificationManager mNotificationManager; 281 282 // Stores and loads state on device and profile owners. 283 private final Owners mOwners; 284 285 private final Binder mToken = new Binder(); 286 287 /** 288 * Whether or not device admin feature is supported. If it isn't return defaults for all 289 * public methods. 290 */ 291 private boolean mHasFeature; 292 293 public static final class Lifecycle extends SystemService { 294 private DevicePolicyManagerService mService; 295 296 public Lifecycle(Context context) { 297 super(context); 298 mService = new DevicePolicyManagerService(context); 299 } 300 301 @Override 302 public void onStart() { 303 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 304 } 305 306 @Override 307 public void onBootPhase(int phase) { 308 mService.systemReady(phase); 309 } 310 } 311 312 public static class DevicePolicyData { 313 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 314 int mActivePasswordLength = 0; 315 int mActivePasswordUpperCase = 0; 316 int mActivePasswordLowerCase = 0; 317 int mActivePasswordLetters = 0; 318 int mActivePasswordNumeric = 0; 319 int mActivePasswordSymbols = 0; 320 int mActivePasswordNonLetter = 0; 321 int mFailedPasswordAttempts = 0; 322 323 int mUserHandle; 324 int mPasswordOwner = -1; 325 long mLastMaximumTimeToLock = -1; 326 boolean mUserSetupComplete = false; 327 int mPermissionPolicy; 328 329 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 330 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 331 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 332 333 // This is the list of component allowed to start lock task mode. 334 List<String> mLockTaskPackages = new ArrayList<>(); 335 336 boolean mStatusBarDisabled = false; 337 338 ComponentName mRestrictionsProvider; 339 340 String mDelegatedCertInstallerPackage; 341 342 boolean doNotAskCredentialsOnBoot = false; 343 344 public DevicePolicyData(int userHandle) { 345 mUserHandle = userHandle; 346 } 347 } 348 349 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 350 351 final Handler mHandler; 352 353 BroadcastReceiver mReceiver = new BroadcastReceiver() { 354 @Override 355 public void onReceive(Context context, Intent intent) { 356 final String action = intent.getAction(); 357 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 358 getSendingUserId()); 359 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 360 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 361 if (DBG) Slog.v(LOG_TAG, "Sending password expiration notifications for action " 362 + action + " for user " + userHandle); 363 mHandler.post(new Runnable() { 364 @Override 365 public void run() { 366 handlePasswordExpirationNotification(userHandle); 367 } 368 }); 369 } 370 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 371 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 372 new MonitoringCertNotificationTask().execute(intent); 373 } 374 if (Intent.ACTION_USER_REMOVED.equals(action)) { 375 removeUserData(userHandle); 376 } else if (Intent.ACTION_USER_STARTED.equals(action) 377 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 378 379 if (Intent.ACTION_USER_STARTED.equals(action)) { 380 // Reset the policy data 381 synchronized (DevicePolicyManagerService.this) { 382 mUserData.remove(userHandle); 383 } 384 } 385 handlePackagesChanged(null /* check all admins */, userHandle); 386 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 387 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 388 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 389 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 390 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 391 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 392 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 393 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 394 clearWipeProfileNotification(); 395 } 396 } 397 }; 398 399 static class ActiveAdmin { 400 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 401 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 402 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 403 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 404 = "disable-bt-contacts-sharing"; 405 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 406 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 407 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 408 private static final String TAG_ACCOUNT_TYPE = "account-type"; 409 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 410 = "permitted-accessiblity-services"; 411 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 412 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 413 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 414 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 415 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 416 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 417 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 418 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 419 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 420 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 421 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 422 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 423 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 424 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 425 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 426 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 427 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 428 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 429 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 430 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 431 private static final String ATTR_VALUE = "value"; 432 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 433 private static final String TAG_POLICIES = "policies"; 434 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 435 "cross-profile-widget-providers"; 436 private static final String TAG_PROVIDER = "provider"; 437 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 438 439 final DeviceAdminInfo info; 440 441 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 442 443 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 444 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 445 446 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 447 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 448 449 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 450 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 451 452 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 453 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 454 455 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 456 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 457 458 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 459 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 460 461 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 462 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 463 464 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 465 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 466 467 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 468 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 469 470 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 471 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 472 473 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 474 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 475 476 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 477 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 478 479 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 480 481 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 482 483 boolean encryptionRequested = false; 484 boolean disableCamera = false; 485 boolean disableCallerId = false; 486 boolean disableBluetoothContactSharing = true; 487 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 488 boolean requireAutoTime = false; // Can only be set by a device owner. 489 490 static class TrustAgentInfo { 491 public PersistableBundle options; 492 TrustAgentInfo(PersistableBundle bundle) { 493 options = bundle; 494 } 495 } 496 497 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 498 499 // The list of permitted accessibility services package namesas set by a profile 500 // or device owner. Null means all accessibility services are allowed, empty means 501 // none except system services are allowed. 502 List<String> permittedAccessiblityServices; 503 504 // The list of permitted input methods package names as set by a profile or device owner. 505 // Null means all input methods are allowed, empty means none except system imes are 506 // allowed. 507 List<String> permittedInputMethods; 508 509 // TODO: review implementation decisions with frameworks team 510 boolean specifiesGlobalProxy = false; 511 String globalProxySpec = null; 512 String globalProxyExclusionList = null; 513 514 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 515 516 List<String> crossProfileWidgetProviders; 517 518 ActiveAdmin(DeviceAdminInfo _info) { 519 info = _info; 520 } 521 522 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 523 524 public UserHandle getUserHandle() { 525 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 526 } 527 528 void writeToXml(XmlSerializer out) 529 throws IllegalArgumentException, IllegalStateException, IOException { 530 out.startTag(null, TAG_POLICIES); 531 info.writePoliciesToXml(out); 532 out.endTag(null, TAG_POLICIES); 533 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 534 out.startTag(null, TAG_PASSWORD_QUALITY); 535 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 536 out.endTag(null, TAG_PASSWORD_QUALITY); 537 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 538 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 539 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 540 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 541 } 542 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 543 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 544 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 545 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 546 } 547 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 548 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 549 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 550 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 551 } 552 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 553 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 554 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 555 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 556 } 557 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 558 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 559 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 560 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 561 } 562 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 563 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 564 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 565 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 566 } 567 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 568 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 569 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 570 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 571 } 572 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 573 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 574 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 575 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 576 } 577 } 578 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 579 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 580 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 581 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 582 } 583 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 584 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 585 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 586 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 587 } 588 if (specifiesGlobalProxy) { 589 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 590 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 591 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 592 if (globalProxySpec != null) { 593 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 594 out.attribute(null, ATTR_VALUE, globalProxySpec); 595 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 596 } 597 if (globalProxyExclusionList != null) { 598 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 599 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 600 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 601 } 602 } 603 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 604 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 605 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 606 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 607 } 608 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 609 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 610 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 611 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 612 } 613 if (encryptionRequested) { 614 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 615 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 616 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 617 } 618 if (disableCamera) { 619 out.startTag(null, TAG_DISABLE_CAMERA); 620 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 621 out.endTag(null, TAG_DISABLE_CAMERA); 622 } 623 if (disableCallerId) { 624 out.startTag(null, TAG_DISABLE_CALLER_ID); 625 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 626 out.endTag(null, TAG_DISABLE_CALLER_ID); 627 } 628 if (disableBluetoothContactSharing) { 629 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 630 out.attribute(null, ATTR_VALUE, 631 Boolean.toString(disableBluetoothContactSharing)); 632 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 633 } 634 if (disableScreenCapture) { 635 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 636 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 637 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 638 } 639 if (requireAutoTime) { 640 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 641 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 642 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 643 } 644 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 645 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 646 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 647 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 648 } 649 if (!accountTypesWithManagementDisabled.isEmpty()) { 650 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 651 for (String ac : accountTypesWithManagementDisabled) { 652 out.startTag(null, TAG_ACCOUNT_TYPE); 653 out.attribute(null, ATTR_VALUE, ac); 654 out.endTag(null, TAG_ACCOUNT_TYPE); 655 } 656 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 657 } 658 if (!trustAgentInfos.isEmpty()) { 659 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 660 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 661 for (Entry<String, TrustAgentInfo> entry : set) { 662 TrustAgentInfo trustAgentInfo = entry.getValue(); 663 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 664 out.attribute(null, ATTR_VALUE, entry.getKey()); 665 if (trustAgentInfo.options != null) { 666 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 667 try { 668 trustAgentInfo.options.saveToXml(out); 669 } catch (XmlPullParserException e) { 670 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 671 } 672 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 673 } 674 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 675 } 676 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 677 } 678 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 679 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 680 final int providerCount = crossProfileWidgetProviders.size(); 681 for (int i = 0; i < providerCount; i++) { 682 String provider = crossProfileWidgetProviders.get(i); 683 out.startTag(null, TAG_PROVIDER); 684 out.attribute(null, ATTR_VALUE, provider); 685 out.endTag(null, TAG_PROVIDER); 686 } 687 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 688 } 689 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 690 permittedAccessiblityServices); 691 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 692 } 693 694 void writePackageListToXml(XmlSerializer out, String outerTag, 695 List<String> packageList) 696 throws IllegalArgumentException, IllegalStateException, IOException { 697 if (packageList == null) { 698 return; 699 } 700 701 out.startTag(null, outerTag); 702 for (String packageName : packageList) { 703 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 704 out.attribute(null, ATTR_VALUE, packageName); 705 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 706 } 707 out.endTag(null, outerTag); 708 } 709 710 void readFromXml(XmlPullParser parser) 711 throws XmlPullParserException, IOException { 712 int outerDepth = parser.getDepth(); 713 int type; 714 while ((type=parser.next()) != END_DOCUMENT 715 && (type != END_TAG || parser.getDepth() > outerDepth)) { 716 if (type == END_TAG || type == TEXT) { 717 continue; 718 } 719 String tag = parser.getName(); 720 if (TAG_POLICIES.equals(tag)) { 721 info.readPoliciesFromXml(parser); 722 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 723 passwordQuality = Integer.parseInt( 724 parser.getAttributeValue(null, ATTR_VALUE)); 725 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 726 minimumPasswordLength = Integer.parseInt( 727 parser.getAttributeValue(null, ATTR_VALUE)); 728 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 729 passwordHistoryLength = Integer.parseInt( 730 parser.getAttributeValue(null, ATTR_VALUE)); 731 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 732 minimumPasswordUpperCase = Integer.parseInt( 733 parser.getAttributeValue(null, ATTR_VALUE)); 734 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 735 minimumPasswordLowerCase = Integer.parseInt( 736 parser.getAttributeValue(null, ATTR_VALUE)); 737 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 738 minimumPasswordLetters = Integer.parseInt( 739 parser.getAttributeValue(null, ATTR_VALUE)); 740 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 741 minimumPasswordNumeric = Integer.parseInt( 742 parser.getAttributeValue(null, ATTR_VALUE)); 743 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 744 minimumPasswordSymbols = Integer.parseInt( 745 parser.getAttributeValue(null, ATTR_VALUE)); 746 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 747 minimumPasswordNonLetter = Integer.parseInt( 748 parser.getAttributeValue(null, ATTR_VALUE)); 749 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 750 maximumTimeToUnlock = Long.parseLong( 751 parser.getAttributeValue(null, ATTR_VALUE)); 752 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 753 maximumFailedPasswordsForWipe = Integer.parseInt( 754 parser.getAttributeValue(null, ATTR_VALUE)); 755 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 756 specifiesGlobalProxy = Boolean.parseBoolean( 757 parser.getAttributeValue(null, ATTR_VALUE)); 758 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 759 globalProxySpec = 760 parser.getAttributeValue(null, ATTR_VALUE); 761 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 762 globalProxyExclusionList = 763 parser.getAttributeValue(null, ATTR_VALUE); 764 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 765 passwordExpirationTimeout = Long.parseLong( 766 parser.getAttributeValue(null, ATTR_VALUE)); 767 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 768 passwordExpirationDate = Long.parseLong( 769 parser.getAttributeValue(null, ATTR_VALUE)); 770 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 771 encryptionRequested = Boolean.parseBoolean( 772 parser.getAttributeValue(null, ATTR_VALUE)); 773 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 774 disableCamera = Boolean.parseBoolean( 775 parser.getAttributeValue(null, ATTR_VALUE)); 776 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 777 disableCallerId = Boolean.parseBoolean( 778 parser.getAttributeValue(null, ATTR_VALUE)); 779 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 780 disableBluetoothContactSharing = Boolean.parseBoolean(parser 781 .getAttributeValue(null, ATTR_VALUE)); 782 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 783 disableScreenCapture = Boolean.parseBoolean( 784 parser.getAttributeValue(null, ATTR_VALUE)); 785 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 786 requireAutoTime= Boolean.parseBoolean( 787 parser.getAttributeValue(null, ATTR_VALUE)); 788 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 789 disabledKeyguardFeatures = Integer.parseInt( 790 parser.getAttributeValue(null, ATTR_VALUE)); 791 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 792 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 793 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 794 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 795 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 796 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 797 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 798 permittedAccessiblityServices = readPackageList(parser, tag); 799 } else if (TAG_PERMITTED_IMES.equals(tag)) { 800 permittedInputMethods = readPackageList(parser, tag); 801 } else { 802 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 803 XmlUtils.skipCurrentTag(parser); 804 } 805 } 806 } 807 808 private List<String> readPackageList(XmlPullParser parser, 809 String tag) throws XmlPullParserException, IOException { 810 List<String> result = new ArrayList<String>(); 811 int outerDepth = parser.getDepth(); 812 int outerType; 813 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 814 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 815 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 816 continue; 817 } 818 String outerTag = parser.getName(); 819 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 820 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 821 if (packageName != null) { 822 result.add(packageName); 823 } else { 824 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 825 } 826 } else { 827 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 828 } 829 } 830 return result; 831 } 832 833 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 834 throws XmlPullParserException, IOException { 835 int outerDepthDAM = parser.getDepth(); 836 int typeDAM; 837 Set<String> result = new ArraySet<>(); 838 while ((typeDAM=parser.next()) != END_DOCUMENT 839 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 840 if (typeDAM == END_TAG || typeDAM == TEXT) { 841 continue; 842 } 843 String tagDAM = parser.getName(); 844 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 845 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 846 } else { 847 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 848 } 849 } 850 return result; 851 } 852 853 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 854 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 855 int outerDepthDAM = parser.getDepth(); 856 int typeDAM; 857 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 858 while ((typeDAM=parser.next()) != END_DOCUMENT 859 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 860 if (typeDAM == END_TAG || typeDAM == TEXT) { 861 continue; 862 } 863 String tagDAM = parser.getName(); 864 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 865 final String component = parser.getAttributeValue(null, ATTR_VALUE); 866 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 867 result.put(component, trustAgentInfo); 868 } else { 869 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 870 } 871 } 872 return result; 873 } 874 875 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 876 throws XmlPullParserException, IOException { 877 int outerDepthDAM = parser.getDepth(); 878 int typeDAM; 879 TrustAgentInfo result = new TrustAgentInfo(null); 880 while ((typeDAM=parser.next()) != END_DOCUMENT 881 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 882 if (typeDAM == END_TAG || typeDAM == TEXT) { 883 continue; 884 } 885 String tagDAM = parser.getName(); 886 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 887 PersistableBundle bundle = new PersistableBundle(); 888 bundle.restoreFromXml(parser); 889 result.options = bundle; 890 } else { 891 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 892 } 893 } 894 return result; 895 } 896 897 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 898 throws XmlPullParserException, IOException { 899 int outerDepthDAM = parser.getDepth(); 900 int typeDAM; 901 ArrayList<String> result = null; 902 while ((typeDAM=parser.next()) != END_DOCUMENT 903 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 904 if (typeDAM == END_TAG || typeDAM == TEXT) { 905 continue; 906 } 907 String tagDAM = parser.getName(); 908 if (TAG_PROVIDER.equals(tagDAM)) { 909 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 910 if (result == null) { 911 result = new ArrayList<>(); 912 } 913 result.add(provider); 914 } else { 915 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 916 } 917 } 918 return result; 919 } 920 921 void dump(String prefix, PrintWriter pw) { 922 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 923 pw.print(prefix); pw.println("policies:"); 924 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 925 if (pols != null) { 926 for (int i=0; i<pols.size(); i++) { 927 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 928 } 929 } 930 pw.print(prefix); pw.print("passwordQuality=0x"); 931 pw.println(Integer.toHexString(passwordQuality)); 932 pw.print(prefix); pw.print("minimumPasswordLength="); 933 pw.println(minimumPasswordLength); 934 pw.print(prefix); pw.print("passwordHistoryLength="); 935 pw.println(passwordHistoryLength); 936 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 937 pw.println(minimumPasswordUpperCase); 938 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 939 pw.println(minimumPasswordLowerCase); 940 pw.print(prefix); pw.print("minimumPasswordLetters="); 941 pw.println(minimumPasswordLetters); 942 pw.print(prefix); pw.print("minimumPasswordNumeric="); 943 pw.println(minimumPasswordNumeric); 944 pw.print(prefix); pw.print("minimumPasswordSymbols="); 945 pw.println(minimumPasswordSymbols); 946 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 947 pw.println(minimumPasswordNonLetter); 948 pw.print(prefix); pw.print("maximumTimeToUnlock="); 949 pw.println(maximumTimeToUnlock); 950 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 951 pw.println(maximumFailedPasswordsForWipe); 952 pw.print(prefix); pw.print("specifiesGlobalProxy="); 953 pw.println(specifiesGlobalProxy); 954 pw.print(prefix); pw.print("passwordExpirationTimeout="); 955 pw.println(passwordExpirationTimeout); 956 pw.print(prefix); pw.print("passwordExpirationDate="); 957 pw.println(passwordExpirationDate); 958 if (globalProxySpec != null) { 959 pw.print(prefix); pw.print("globalProxySpec="); 960 pw.println(globalProxySpec); 961 } 962 if (globalProxyExclusionList != null) { 963 pw.print(prefix); pw.print("globalProxyEclusionList="); 964 pw.println(globalProxyExclusionList); 965 } 966 pw.print(prefix); pw.print("encryptionRequested="); 967 pw.println(encryptionRequested); 968 pw.print(prefix); pw.print("disableCamera="); 969 pw.println(disableCamera); 970 pw.print(prefix); pw.print("disableCallerId="); 971 pw.println(disableCallerId); 972 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 973 pw.println(disableBluetoothContactSharing); 974 pw.print(prefix); pw.print("disableScreenCapture="); 975 pw.println(disableScreenCapture); 976 pw.print(prefix); pw.print("requireAutoTime="); 977 pw.println(requireAutoTime); 978 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 979 pw.println(disabledKeyguardFeatures); 980 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 981 pw.println(crossProfileWidgetProviders); 982 if (!(permittedAccessiblityServices == null)) { 983 pw.print(prefix); pw.print("permittedAccessibilityServices="); 984 pw.println(permittedAccessiblityServices.toString()); 985 } 986 if (!(permittedInputMethods == null)) { 987 pw.print(prefix); pw.print("permittedInputMethods="); 988 pw.println(permittedInputMethods.toString()); 989 } 990 } 991 } 992 993 private void handlePackagesChanged(String packageName, int userHandle) { 994 boolean removed = false; 995 if (DBG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 996 DevicePolicyData policy = getUserData(userHandle); 997 IPackageManager pm = getIPackageManager(); 998 synchronized (this) { 999 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1000 ActiveAdmin aa = policy.mAdminList.get(i); 1001 try { 1002 // If we're checking all packages or if the specific one we're checking matches, 1003 // then check if the package and receiver still exist. 1004 final String adminPackage = aa.info.getPackageName(); 1005 if (packageName == null || packageName.equals(adminPackage)) { 1006 if (pm.getPackageInfo(adminPackage, 0, userHandle) == null 1007 || pm.getReceiverInfo(aa.info.getComponent(), 0, userHandle) 1008 == null) { 1009 removed = true; 1010 policy.mAdminList.remove(i); 1011 policy.mAdminMap.remove(aa.info.getComponent()); 1012 } 1013 } 1014 } catch (RemoteException re) { 1015 // Shouldn't happen 1016 } 1017 } 1018 if (removed) { 1019 validatePasswordOwnerLocked(policy); 1020 syncDeviceCapabilitiesLocked(policy); 1021 saveSettingsLocked(policy.mUserHandle); 1022 } 1023 1024 if (policy.mDelegatedCertInstallerPackage != null && 1025 (packageName == null 1026 || packageName.equals(policy.mDelegatedCertInstallerPackage))) { 1027 try { 1028 // Check if delegated cert installer package is removed. 1029 if (pm.getPackageInfo( 1030 policy.mDelegatedCertInstallerPackage, 0, userHandle) == null) { 1031 policy.mDelegatedCertInstallerPackage = null; 1032 saveSettingsLocked(policy.mUserHandle); 1033 } 1034 } catch (RemoteException e) { 1035 // Shouldn't happen 1036 } 1037 } 1038 } 1039 } 1040 1041 /** Unit test will override it to inject a mock. */ 1042 @VisibleForTesting 1043 Owners newOwners() { 1044 return new Owners(mContext); 1045 } 1046 1047 /** Unit test will override it to inject a mock. */ 1048 @VisibleForTesting 1049 UserManager getUserManager() { 1050 return UserManager.get(mContext); 1051 } 1052 1053 /** Unit test will override it to inject a mock. */ 1054 @VisibleForTesting 1055 PackageManager getPackageManager() { 1056 return mContext.getPackageManager(); 1057 } 1058 1059 /** Unit test will override it to inject a mock. */ 1060 @VisibleForTesting 1061 NotificationManager getNotificationManager() { 1062 return mContext.getSystemService(NotificationManager.class); 1063 } 1064 1065 /** Unit test will override it to inject a mock. */ 1066 @VisibleForTesting 1067 PowerManagerInternal getPowerManagerInternal() { 1068 return LocalServices.getService(PowerManagerInternal.class); 1069 } 1070 1071 /** Unit test will override it to inject a mock. */ 1072 @VisibleForTesting 1073 IWindowManager getIWindowManager() { 1074 return IWindowManager.Stub.asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1075 } 1076 1077 /** Unit test will override it to inject a mock. */ 1078 @VisibleForTesting 1079 IActivityManager getIActivityManager() { 1080 return ActivityManagerNative.getDefault(); 1081 } 1082 1083 /** Unit test will override it to inject a mock. */ 1084 @VisibleForTesting 1085 IPackageManager getIPackageManager() { 1086 return AppGlobals.getPackageManager(); 1087 } 1088 1089 /** Unit test will override it to inject a mock. */ 1090 @VisibleForTesting 1091 LockPatternUtils newLockPatternUtils(Context context) { 1092 return new LockPatternUtils(context); 1093 } 1094 1095 /** Unit test will override it to inject. */ 1096 @VisibleForTesting 1097 Looper getMyLooper() { 1098 return Looper.myLooper(); 1099 } 1100 1101 @VisibleForTesting 1102 long binderClearCallingIdentity() { 1103 return Binder.clearCallingIdentity(); 1104 } 1105 1106 @VisibleForTesting 1107 void binderRestoreCallingIdentity(long token) { 1108 Binder.restoreCallingIdentity(token); 1109 } 1110 1111 @VisibleForTesting 1112 int binderGetCallingUid() { 1113 return Binder.getCallingUid(); 1114 } 1115 1116 @VisibleForTesting 1117 int binderGetCallingPid() { 1118 return Binder.getCallingPid(); 1119 } 1120 1121 @VisibleForTesting 1122 UserHandle binderGetCallingUserHandle() { 1123 return Binder.getCallingUserHandle(); 1124 } 1125 1126 @VisibleForTesting 1127 boolean binderIsCallingUidMyUid() { 1128 return getCallingUid() == Process.myUid(); 1129 } 1130 1131 @VisibleForTesting 1132 File environmentGetUserSystemDirectory(int userId) { 1133 return Environment.getUserSystemDirectory(userId); 1134 } 1135 1136 @VisibleForTesting 1137 void powerManagerGoToSleep(long time, int reason, int flags) { 1138 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1139 } 1140 1141 @VisibleForTesting 1142 boolean systemPropertiesGetBoolean(String key, boolean def) { 1143 return SystemProperties.getBoolean(key, def); 1144 } 1145 1146 @VisibleForTesting 1147 long systemPropertiesGetLong(String key, long def) { 1148 return SystemProperties.getLong(key, def); 1149 } 1150 1151 @VisibleForTesting 1152 String systemPropertiesGet(String key, String def) { 1153 return SystemProperties.get(key, def); 1154 } 1155 1156 @VisibleForTesting 1157 String systemPropertiesGet(String key) { 1158 return SystemProperties.get(key); 1159 } 1160 1161 @VisibleForTesting 1162 void systemPropertiesSet(String key, String value) { 1163 SystemProperties.set(key, value); 1164 } 1165 1166 /** 1167 * Instantiates the service. 1168 */ 1169 public DevicePolicyManagerService(Context context) { 1170 mContext = context; 1171 mHandler = new Handler(getMyLooper()); 1172 mOwners = newOwners(); 1173 1174 mUserManager = Preconditions.checkNotNull(getUserManager()); 1175 mPackageManager = Preconditions.checkNotNull(getPackageManager()); 1176 mPowerManagerInternal = Preconditions.checkNotNull(getPowerManagerInternal()); 1177 mIWindowManager = Preconditions.checkNotNull(getIWindowManager()); 1178 mNotificationManager = Preconditions.checkNotNull(getNotificationManager()); 1179 1180 mLocalService = new LocalService(); 1181 1182 mHasFeature = mPackageManager.hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1183 if (!mHasFeature) { 1184 // Skip the rest of the initialization 1185 return; 1186 } 1187 IntentFilter filter = new IntentFilter(); 1188 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1189 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1190 filter.addAction(Intent.ACTION_USER_REMOVED); 1191 filter.addAction(Intent.ACTION_USER_STARTED); 1192 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1193 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1194 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1195 filter = new IntentFilter(); 1196 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1197 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1198 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1199 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1200 filter.addDataScheme("package"); 1201 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1202 filter = new IntentFilter(); 1203 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1204 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1205 1206 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1207 } 1208 1209 /** 1210 * We need it for testing to allow accessing context from the test-only subclass while this 1211 * class's constructor is still running. 1212 */ 1213 @VisibleForTesting 1214 Context getContext() { 1215 return mContext; 1216 } 1217 1218 /** 1219 * Creates and loads the policy data from xml. 1220 * @param userHandle the user for whom to load the policy data 1221 * @return 1222 */ 1223 DevicePolicyData getUserData(int userHandle) { 1224 synchronized (this) { 1225 DevicePolicyData policy = mUserData.get(userHandle); 1226 if (policy == null) { 1227 policy = new DevicePolicyData(userHandle); 1228 mUserData.append(userHandle, policy); 1229 loadSettingsLocked(policy, userHandle); 1230 } 1231 return policy; 1232 } 1233 } 1234 1235 /** 1236 * Creates and loads the policy data from xml for data that is shared between 1237 * various profiles of a user. In contrast to {@link #getUserData(int)} 1238 * it allows access to data of users other than the calling user. 1239 * 1240 * This function should only be used for shared data, e.g. everything regarding 1241 * passwords and should be removed once multiple screen locks are present. 1242 * @param userHandle the user for whom to load the policy data 1243 * @return 1244 */ 1245 DevicePolicyData getUserDataUnchecked(int userHandle) { 1246 long ident = binderClearCallingIdentity(); 1247 try { 1248 return getUserData(userHandle); 1249 } finally { 1250 binderRestoreCallingIdentity(ident); 1251 } 1252 } 1253 1254 void removeUserData(int userHandle) { 1255 synchronized (this) { 1256 if (userHandle == UserHandle.USER_SYSTEM) { 1257 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1258 return; 1259 } 1260 mOwners.removeProfileOwner(userHandle); 1261 mOwners.writeProfileOwner(userHandle); 1262 1263 DevicePolicyData policy = mUserData.get(userHandle); 1264 if (policy != null) { 1265 mUserData.remove(userHandle); 1266 } 1267 File policyFile = new File(environmentGetUserSystemDirectory(userHandle), 1268 DEVICE_POLICIES_XML); 1269 policyFile.delete(); 1270 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1271 } 1272 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1273 } 1274 1275 void loadOwners() { 1276 synchronized (this) { 1277 mOwners.load(); 1278 updateDeviceOwnerLocked(); 1279 } 1280 } 1281 1282 /** 1283 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1284 * reminders. Clears alarm if no expirations are configured. 1285 */ 1286 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1287 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1288 final long now = System.currentTimeMillis(); 1289 final long timeToExpire = expiration - now; 1290 final long alarmTime; 1291 if (expiration == 0) { 1292 // No expirations are currently configured: Cancel alarm. 1293 alarmTime = 0; 1294 } else if (timeToExpire <= 0) { 1295 // The password has already expired: Repeat every 24 hours. 1296 alarmTime = now + MS_PER_DAY; 1297 } else { 1298 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1299 // the expiration time. 1300 long alarmInterval = timeToExpire % MS_PER_DAY; 1301 if (alarmInterval == 0) { 1302 alarmInterval = MS_PER_DAY; 1303 } 1304 alarmTime = now + alarmInterval; 1305 } 1306 1307 long token = binderClearCallingIdentity(); 1308 try { 1309 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1310 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1311 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1312 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1313 new UserHandle(policy.mUserHandle)); 1314 am.cancel(pi); 1315 if (alarmTime != 0) { 1316 am.set(AlarmManager.RTC, alarmTime, pi); 1317 } 1318 } finally { 1319 binderRestoreCallingIdentity(token); 1320 } 1321 } 1322 1323 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1324 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1325 if (admin != null 1326 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1327 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1328 return admin; 1329 } 1330 return null; 1331 } 1332 1333 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1334 throws SecurityException { 1335 final int callingUid = binderGetCallingUid(); 1336 1337 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1338 if (result != null) { 1339 return result; 1340 } 1341 1342 if (who != null) { 1343 final int userId = UserHandle.getUserId(callingUid); 1344 final DevicePolicyData policy = getUserData(userId); 1345 ActiveAdmin admin = policy.mAdminMap.get(who); 1346 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1347 throw new SecurityException("Admin " + admin.info.getComponent() 1348 + " does not own the device"); 1349 } 1350 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1351 throw new SecurityException("Admin " + admin.info.getComponent() 1352 + " does not own the profile"); 1353 } 1354 throw new SecurityException("Admin " + admin.info.getComponent() 1355 + " did not specify uses-policy for: " 1356 + admin.info.getTagForPolicy(reqPolicy)); 1357 } else { 1358 throw new SecurityException("No active admin owned by uid " 1359 + binderGetCallingUid() + " for policy #" + reqPolicy); 1360 } 1361 } 1362 1363 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1364 int uid) { 1365 // Try to find an admin which can use reqPolicy 1366 final int userId = UserHandle.getUserId(uid); 1367 final DevicePolicyData policy = getUserData(userId); 1368 if (who != null) { 1369 ActiveAdmin admin = policy.mAdminMap.get(who); 1370 if (admin == null) { 1371 throw new SecurityException("No active admin " + who); 1372 } 1373 if (admin.getUid() != uid) { 1374 throw new SecurityException("Admin " + who + " is not owned by uid " 1375 + binderGetCallingUid()); 1376 } 1377 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 1378 return admin; 1379 } 1380 } else { 1381 for (ActiveAdmin admin : policy.mAdminList) { 1382 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 1383 userId)) { 1384 return admin; 1385 } 1386 } 1387 } 1388 1389 return null; 1390 } 1391 1392 private boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 1393 int userId) { 1394 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 1395 boolean ownsProfile = (getProfileOwner(userId) != null 1396 && getProfileOwner(userId).getPackageName() 1397 .equals(admin.info.getPackageName())); 1398 boolean ownsInitialization = isDeviceInitializer(admin.info.getPackageName()) 1399 && !hasUserSetupCompleted(userId); 1400 1401 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1402 if ((userId == UserHandle.USER_SYSTEM && (ownsDevice || ownsInitialization)) 1403 || (ownsDevice && ownsProfile)) { 1404 return true; 1405 } 1406 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1407 if ((userId == UserHandle.USER_SYSTEM && ownsDevice) || ownsProfile 1408 || ownsInitialization) { 1409 return true; 1410 } 1411 } else { 1412 if (admin.info.usesPolicy(reqPolicy)) { 1413 return true; 1414 } 1415 } 1416 return false; 1417 } 1418 1419 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1420 sendAdminCommandLocked(admin, action, null); 1421 } 1422 1423 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1424 sendAdminCommandLocked(admin, action, null, result); 1425 } 1426 1427 /** 1428 * Send an update to one specific admin, get notified when that admin returns a result. 1429 */ 1430 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1431 BroadcastReceiver result) { 1432 Intent intent = new Intent(action); 1433 intent.setComponent(admin.info.getComponent()); 1434 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1435 intent.putExtra("expiration", admin.passwordExpirationDate); 1436 } 1437 if (adminExtras != null) { 1438 intent.putExtras(adminExtras); 1439 } 1440 if (result != null) { 1441 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1442 null, result, mHandler, Activity.RESULT_OK, null, null); 1443 } else { 1444 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1445 } 1446 } 1447 1448 /** 1449 * Send an update to all admins of a user that enforce a specified policy. 1450 */ 1451 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1452 final DevicePolicyData policy = getUserData(userHandle); 1453 final int count = policy.mAdminList.size(); 1454 if (count > 0) { 1455 for (int i = 0; i < count; i++) { 1456 final ActiveAdmin admin = policy.mAdminList.get(i); 1457 if (admin.info.usesPolicy(reqPolicy)) { 1458 sendAdminCommandLocked(admin, action); 1459 } 1460 } 1461 } 1462 } 1463 1464 /** 1465 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1466 * enforce a specified policy. 1467 */ 1468 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1469 int userHandle) { 1470 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1471 for (UserInfo ui : profiles) { 1472 int id = ui.id; 1473 sendAdminCommandLocked(action, reqPolicy, id); 1474 } 1475 } 1476 1477 void removeActiveAdminLocked(final ComponentName adminReceiver, int userHandle) { 1478 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1479 if (admin != null) { 1480 synchronized (this) { 1481 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 1482 } 1483 sendAdminCommandLocked(admin, 1484 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1485 new BroadcastReceiver() { 1486 @Override 1487 public void onReceive(Context context, Intent intent) { 1488 synchronized (DevicePolicyManagerService.this) { 1489 int userHandle = admin.getUserHandle().getIdentifier(); 1490 DevicePolicyData policy = getUserData(userHandle); 1491 boolean doProxyCleanup = admin.info.usesPolicy( 1492 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1493 policy.mAdminList.remove(admin); 1494 policy.mAdminMap.remove(adminReceiver); 1495 validatePasswordOwnerLocked(policy); 1496 syncDeviceCapabilitiesLocked(policy); 1497 if (doProxyCleanup) { 1498 resetGlobalProxyLocked(getUserData(userHandle)); 1499 } 1500 saveSettingsLocked(userHandle); 1501 updateMaximumTimeToLockLocked(policy); 1502 policy.mRemovingAdmins.remove(adminReceiver); 1503 } 1504 } 1505 }); 1506 } 1507 } 1508 1509 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) { 1510 if (!mHasFeature) { 1511 return null; 1512 } 1513 enforceCrossUserPermission(userHandle); 1514 Intent resolveIntent = new Intent(); 1515 resolveIntent.setComponent(adminName); 1516 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1517 resolveIntent, 1518 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1519 userHandle); 1520 if (infos == null || infos.size() <= 0) { 1521 throw new IllegalArgumentException("Unknown admin: " + adminName); 1522 } 1523 1524 try { 1525 return new DeviceAdminInfo(mContext, infos.get(0)); 1526 } catch (XmlPullParserException e) { 1527 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1528 e); 1529 return null; 1530 } catch (IOException e) { 1531 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1532 e); 1533 return null; 1534 } 1535 } 1536 1537 private JournaledFile makeJournaledFile(int userHandle) { 1538 final String base = userHandle == UserHandle.USER_SYSTEM 1539 ? getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 1540 : new File(environmentGetUserSystemDirectory(userHandle), DEVICE_POLICIES_XML) 1541 .getAbsolutePath(); 1542 return new JournaledFile(new File(base), new File(base + ".tmp")); 1543 } 1544 1545 @VisibleForTesting 1546 String getDevicePolicyFilePathForSystemUser() { 1547 return "/data/system/"; 1548 } 1549 1550 private void saveSettingsLocked(int userHandle) { 1551 DevicePolicyData policy = getUserData(userHandle); 1552 JournaledFile journal = makeJournaledFile(userHandle); 1553 FileOutputStream stream = null; 1554 try { 1555 stream = new FileOutputStream(journal.chooseForWrite(), false); 1556 XmlSerializer out = new FastXmlSerializer(); 1557 out.setOutput(stream, StandardCharsets.UTF_8.name()); 1558 out.startDocument(null, true); 1559 1560 out.startTag(null, "policies"); 1561 if (policy.mRestrictionsProvider != null) { 1562 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1563 policy.mRestrictionsProvider.flattenToString()); 1564 } 1565 if (policy.mUserSetupComplete) { 1566 out.attribute(null, ATTR_SETUP_COMPLETE, 1567 Boolean.toString(true)); 1568 } 1569 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 1570 out.attribute(null, ATTR_PERMISSION_POLICY, 1571 Integer.toString(policy.mPermissionPolicy)); 1572 } 1573 if (policy.mDelegatedCertInstallerPackage != null) { 1574 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 1575 policy.mDelegatedCertInstallerPackage); 1576 } 1577 1578 final int N = policy.mAdminList.size(); 1579 for (int i=0; i<N; i++) { 1580 ActiveAdmin ap = policy.mAdminList.get(i); 1581 if (ap != null) { 1582 out.startTag(null, "admin"); 1583 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1584 ap.writeToXml(out); 1585 out.endTag(null, "admin"); 1586 } 1587 } 1588 1589 if (policy.mPasswordOwner >= 0) { 1590 out.startTag(null, "password-owner"); 1591 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1592 out.endTag(null, "password-owner"); 1593 } 1594 1595 if (policy.mFailedPasswordAttempts != 0) { 1596 out.startTag(null, "failed-password-attempts"); 1597 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1598 out.endTag(null, "failed-password-attempts"); 1599 } 1600 1601 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1602 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1603 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1604 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1605 out.startTag(null, "active-password"); 1606 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1607 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1608 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1609 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1610 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1611 out.attribute(null, "numeric", Integer 1612 .toString(policy.mActivePasswordNumeric)); 1613 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1614 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1615 out.endTag(null, "active-password"); 1616 } 1617 1618 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1619 String component = policy.mLockTaskPackages.get(i); 1620 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 1621 out.attribute(null, "name", component); 1622 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 1623 } 1624 1625 if (policy.mStatusBarDisabled) { 1626 out.startTag(null, TAG_STATUS_BAR); 1627 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 1628 out.endTag(null, TAG_STATUS_BAR); 1629 } 1630 1631 if (policy.doNotAskCredentialsOnBoot) { 1632 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1633 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1634 } 1635 1636 out.endTag(null, "policies"); 1637 1638 out.endDocument(); 1639 stream.flush(); 1640 FileUtils.sync(stream); 1641 stream.close(); 1642 journal.commit(); 1643 sendChangedNotification(userHandle); 1644 } catch (IOException e) { 1645 Slog.w(LOG_TAG, "failed writing file", e); 1646 try { 1647 if (stream != null) { 1648 stream.close(); 1649 } 1650 } catch (IOException ex) { 1651 // Ignore 1652 } 1653 journal.rollback(); 1654 } 1655 } 1656 1657 private void sendChangedNotification(int userHandle) { 1658 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1659 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1660 long ident = binderClearCallingIdentity(); 1661 try { 1662 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1663 } finally { 1664 binderRestoreCallingIdentity(ident); 1665 } 1666 } 1667 1668 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1669 JournaledFile journal = makeJournaledFile(userHandle); 1670 FileInputStream stream = null; 1671 File file = journal.chooseForRead(); 1672 try { 1673 stream = new FileInputStream(file); 1674 XmlPullParser parser = Xml.newPullParser(); 1675 parser.setInput(stream, StandardCharsets.UTF_8.name()); 1676 1677 int type; 1678 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1679 && type != XmlPullParser.START_TAG) { 1680 } 1681 String tag = parser.getName(); 1682 if (!"policies".equals(tag)) { 1683 throw new XmlPullParserException( 1684 "Settings do not start with policies tag: found " + tag); 1685 } 1686 1687 // Extract the permission provider component name if available 1688 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1689 if (permissionProvider != null) { 1690 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1691 } 1692 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1693 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1694 policy.mUserSetupComplete = true; 1695 } 1696 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 1697 if (!TextUtils.isEmpty(permissionPolicy)) { 1698 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 1699 } 1700 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 1701 ATTR_DELEGATED_CERT_INSTALLER); 1702 1703 type = parser.next(); 1704 int outerDepth = parser.getDepth(); 1705 policy.mLockTaskPackages.clear(); 1706 policy.mAdminList.clear(); 1707 policy.mAdminMap.clear(); 1708 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1709 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1710 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1711 continue; 1712 } 1713 tag = parser.getName(); 1714 if ("admin".equals(tag)) { 1715 String name = parser.getAttributeValue(null, "name"); 1716 try { 1717 DeviceAdminInfo dai = findAdmin( 1718 ComponentName.unflattenFromString(name), userHandle); 1719 if (DBG && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1720 != userHandle)) { 1721 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1722 + dai.getActivityInfo().applicationInfo.uid + " for user " 1723 + userHandle); 1724 } 1725 if (dai != null) { 1726 ActiveAdmin ap = new ActiveAdmin(dai); 1727 ap.readFromXml(parser); 1728 policy.mAdminMap.put(ap.info.getComponent(), ap); 1729 } 1730 } catch (RuntimeException e) { 1731 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1732 } 1733 } else if ("failed-password-attempts".equals(tag)) { 1734 policy.mFailedPasswordAttempts = Integer.parseInt( 1735 parser.getAttributeValue(null, "value")); 1736 } else if ("password-owner".equals(tag)) { 1737 policy.mPasswordOwner = Integer.parseInt( 1738 parser.getAttributeValue(null, "value")); 1739 } else if ("active-password".equals(tag)) { 1740 policy.mActivePasswordQuality = Integer.parseInt( 1741 parser.getAttributeValue(null, "quality")); 1742 policy.mActivePasswordLength = Integer.parseInt( 1743 parser.getAttributeValue(null, "length")); 1744 policy.mActivePasswordUpperCase = Integer.parseInt( 1745 parser.getAttributeValue(null, "uppercase")); 1746 policy.mActivePasswordLowerCase = Integer.parseInt( 1747 parser.getAttributeValue(null, "lowercase")); 1748 policy.mActivePasswordLetters = Integer.parseInt( 1749 parser.getAttributeValue(null, "letters")); 1750 policy.mActivePasswordNumeric = Integer.parseInt( 1751 parser.getAttributeValue(null, "numeric")); 1752 policy.mActivePasswordSymbols = Integer.parseInt( 1753 parser.getAttributeValue(null, "symbols")); 1754 policy.mActivePasswordNonLetter = Integer.parseInt( 1755 parser.getAttributeValue(null, "nonletter")); 1756 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 1757 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 1758 } else if (TAG_STATUS_BAR.equals(tag)) { 1759 policy.mStatusBarDisabled = Boolean.parseBoolean( 1760 parser.getAttributeValue(null, ATTR_DISABLED)); 1761 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 1762 policy.doNotAskCredentialsOnBoot = true; 1763 } else { 1764 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1765 XmlUtils.skipCurrentTag(parser); 1766 } 1767 } 1768 } catch (NullPointerException e) { 1769 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1770 } catch (NumberFormatException e) { 1771 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1772 } catch (XmlPullParserException e) { 1773 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1774 } catch (FileNotFoundException e) { 1775 // Don't be noisy, this is normal if we haven't defined any policies. 1776 } catch (IOException e) { 1777 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1778 } catch (IndexOutOfBoundsException e) { 1779 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1780 } 1781 try { 1782 if (stream != null) { 1783 stream.close(); 1784 } 1785 } catch (IOException e) { 1786 // Ignore 1787 } 1788 1789 // Generate a list of admins from the admin map 1790 policy.mAdminList.addAll(policy.mAdminMap.values()); 1791 1792 // Validate that what we stored for the password quality matches 1793 // sufficiently what is currently set. Note that this is only 1794 // a sanity check in case the two get out of sync; this should 1795 // never normally happen. 1796 final long identity = binderClearCallingIdentity(); 1797 try { 1798 LockPatternUtils utils = newLockPatternUtils(mContext); 1799 if (utils.getActivePasswordQuality(userHandle) < policy.mActivePasswordQuality) { 1800 Slog.w(LOG_TAG, "Active password quality 0x" 1801 + Integer.toHexString(policy.mActivePasswordQuality) 1802 + " does not match actual quality 0x" 1803 + Integer.toHexString(utils.getActivePasswordQuality(userHandle))); 1804 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1805 policy.mActivePasswordLength = 0; 1806 policy.mActivePasswordUpperCase = 0; 1807 policy.mActivePasswordLowerCase = 0; 1808 policy.mActivePasswordLetters = 0; 1809 policy.mActivePasswordNumeric = 0; 1810 policy.mActivePasswordSymbols = 0; 1811 policy.mActivePasswordNonLetter = 0; 1812 } 1813 } finally { 1814 binderRestoreCallingIdentity(identity); 1815 } 1816 1817 validatePasswordOwnerLocked(policy); 1818 syncDeviceCapabilitiesLocked(policy); 1819 updateMaximumTimeToLockLocked(policy); 1820 addDeviceInitializerToLockTaskPackagesLocked(userHandle); 1821 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 1822 if (policy.mStatusBarDisabled) { 1823 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 1824 } 1825 } 1826 1827 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 1828 IActivityManager am = getIActivityManager(); 1829 long ident = binderClearCallingIdentity(); 1830 try { 1831 am.updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 1832 } catch (RemoteException e) { 1833 // Not gonna happen. 1834 } finally { 1835 binderRestoreCallingIdentity(ident); 1836 } 1837 } 1838 1839 private void updateDeviceOwnerLocked() { 1840 IActivityManager am = getIActivityManager(); 1841 long ident = binderClearCallingIdentity(); 1842 try { 1843 am.updateDeviceOwner(getDeviceOwner()); 1844 } catch (RemoteException e) { 1845 // Not gonna happen. 1846 } finally { 1847 binderRestoreCallingIdentity(ident); 1848 } 1849 } 1850 1851 static void validateQualityConstant(int quality) { 1852 switch (quality) { 1853 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 1854 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 1855 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 1856 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 1857 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 1858 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 1859 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 1860 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 1861 return; 1862 } 1863 throw new IllegalArgumentException("Invalid quality constant: 0x" 1864 + Integer.toHexString(quality)); 1865 } 1866 1867 void validatePasswordOwnerLocked(DevicePolicyData policy) { 1868 if (policy.mPasswordOwner >= 0) { 1869 boolean haveOwner = false; 1870 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1871 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 1872 haveOwner = true; 1873 break; 1874 } 1875 } 1876 if (!haveOwner) { 1877 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 1878 + " no longer active; disabling"); 1879 policy.mPasswordOwner = -1; 1880 } 1881 } 1882 } 1883 1884 /** 1885 * Pushes down policy information to the system for any policies related to general device 1886 * capabilities that need to be enforced by lower level services (e.g. Camera services). 1887 */ 1888 void syncDeviceCapabilitiesLocked(DevicePolicyData policy) { 1889 // Ensure the status of the camera is synced down to the system. Interested native services 1890 // should monitor this value and act accordingly. 1891 String cameraPropertyForUser = SYSTEM_PROP_DISABLE_CAMERA_PREFIX + policy.mUserHandle; 1892 boolean systemState = systemPropertiesGetBoolean(cameraPropertyForUser, false); 1893 boolean cameraDisabled = getCameraDisabled(null, policy.mUserHandle); 1894 if (cameraDisabled != systemState) { 1895 long token = binderClearCallingIdentity(); 1896 try { 1897 String value = cameraDisabled ? "1" : "0"; 1898 if (DBG) Slog.v(LOG_TAG, "Change in camera state [" 1899 + cameraPropertyForUser + "] = " + value); 1900 systemPropertiesSet(cameraPropertyForUser, value); 1901 } finally { 1902 binderRestoreCallingIdentity(token); 1903 } 1904 } 1905 } 1906 1907 public void systemReady(int phase) { 1908 if (!mHasFeature) { 1909 return; 1910 } 1911 switch (phase) { 1912 case SystemService.PHASE_LOCK_SETTINGS_READY: 1913 onLockSettingsReady(); 1914 break; 1915 case SystemService.PHASE_BOOT_COMPLETED: 1916 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 1917 break; 1918 } 1919 } 1920 1921 private void onLockSettingsReady() { 1922 getUserData(UserHandle.USER_SYSTEM); 1923 loadOwners(); 1924 cleanUpOldUsers(); 1925 // Register an observer for watching for user setup complete. 1926 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 1927 // Initialize the user setup state, to handle the upgrade case. 1928 updateUserSetupComplete(); 1929 1930 // Update the screen capture disabled cache in the window manager 1931 List<UserInfo> users = mUserManager.getUsers(true); 1932 final int N = users.size(); 1933 for (int i = 0; i < N; i++) { 1934 int userHandle = users.get(i).id; 1935 updateScreenCaptureDisabledInWindowManager(userHandle, 1936 getScreenCaptureDisabled(null, userHandle)); 1937 } 1938 } 1939 1940 private void ensureDeviceOwnerUserStarted() { 1941 if (mOwners.hasDeviceOwner()) { 1942 final IActivityManager am = getIActivityManager(); 1943 final int userId = mOwners.getDeviceOwnerUserId(); 1944 if (VERBOSE_LOG) { 1945 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 1946 } 1947 if (userId != UserHandle.USER_SYSTEM) { 1948 try { 1949 am.startUserInBackground(userId); 1950 1951 // STOPSHIP Prevent the DO user from being killed. 1952 1953 } catch (RemoteException e) { 1954 Slog.w(LOG_TAG, "Exception starting user", e); 1955 } 1956 } 1957 } 1958 } 1959 1960 private void cleanUpOldUsers() { 1961 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 1962 // before reboot 1963 Set<Integer> usersWithProfileOwners; 1964 Set<Integer> usersWithData; 1965 synchronized(this) { 1966 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 1967 usersWithData = new ArraySet<>(); 1968 for (int i = 0; i < mUserData.size(); i++) { 1969 usersWithData.add(mUserData.keyAt(i)); 1970 } 1971 } 1972 List<UserInfo> allUsers = mUserManager.getUsers(); 1973 1974 Set<Integer> deletedUsers = new ArraySet<>(); 1975 deletedUsers.addAll(usersWithProfileOwners); 1976 deletedUsers.addAll(usersWithData); 1977 for (UserInfo userInfo : allUsers) { 1978 deletedUsers.remove(userInfo.id); 1979 } 1980 for (Integer userId : deletedUsers) { 1981 removeUserData(userId); 1982 } 1983 } 1984 1985 private void handlePasswordExpirationNotification(int userHandle) { 1986 synchronized (this) { 1987 final long now = System.currentTimeMillis(); 1988 1989 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1990 for (UserInfo ui : profiles) { 1991 int profileUserHandle = ui.id; 1992 final DevicePolicyData policy = getUserData(profileUserHandle); 1993 final int count = policy.mAdminList.size(); 1994 if (count > 0) { 1995 for (int i = 0; i < count; i++) { 1996 final ActiveAdmin admin = policy.mAdminList.get(i); 1997 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 1998 && admin.passwordExpirationTimeout > 0L 1999 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2000 && admin.passwordExpirationDate > 0L) { 2001 sendAdminCommandLocked(admin, 2002 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2003 } 2004 } 2005 } 2006 } 2007 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2008 } 2009 } 2010 2011 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 2012 @Override 2013 protected Void doInBackground(Intent... params) { 2014 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 2015 2016 if (userHandle == UserHandle.USER_ALL) { 2017 for (UserInfo userInfo : mUserManager.getUsers()) { 2018 manageNotification(userInfo.getUserHandle()); 2019 } 2020 } else { 2021 manageNotification(new UserHandle(userHandle)); 2022 } 2023 return null; 2024 } 2025 2026 private void manageNotification(UserHandle userHandle) { 2027 if (!mUserManager.isUserRunning(userHandle)) { 2028 return; 2029 } 2030 2031 // Call out to KeyChain to check for user-added CAs 2032 boolean hasCert = false; 2033 try { 2034 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 2035 try { 2036 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 2037 hasCert = true; 2038 } 2039 } catch (RemoteException e) { 2040 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2041 } finally { 2042 kcs.close(); 2043 } 2044 } catch (InterruptedException e) { 2045 Thread.currentThread().interrupt(); 2046 } catch (RuntimeException e) { 2047 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2048 } 2049 if (!hasCert) { 2050 mNotificationManager.cancelAsUser( 2051 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2052 return; 2053 } 2054 2055 // Build and show a warning notification 2056 int smallIconId; 2057 String contentText; 2058 final String ownerName = getDeviceOwnerName(); 2059 if (isManagedProfile(userHandle.getIdentifier())) { 2060 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 2061 smallIconId = R.drawable.stat_sys_certificate_info; 2062 } else if (ownerName != null) { 2063 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 2064 smallIconId = R.drawable.stat_sys_certificate_info; 2065 } else { 2066 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2067 smallIconId = android.R.drawable.stat_sys_warning; 2068 } 2069 2070 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2071 dialogIntent.setFlags( 2072 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2073 dialogIntent.setPackage("com.android.settings"); 2074 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2075 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 2076 2077 final Context userContext; 2078 try { 2079 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 2080 } catch (PackageManager.NameNotFoundException e) { 2081 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2082 return; 2083 } 2084 final Notification noti = new Notification.Builder(userContext) 2085 .setSmallIcon(smallIconId) 2086 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 2087 .setContentText(contentText) 2088 .setContentIntent(notifyIntent) 2089 .setPriority(Notification.PRIORITY_HIGH) 2090 .setShowWhen(false) 2091 .setColor(mContext.getColor( 2092 com.android.internal.R.color.system_notification_accent_color)) 2093 .build(); 2094 2095 mNotificationManager.notifyAsUser( 2096 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2097 } 2098 } 2099 2100 /** 2101 * @param adminReceiver The admin to add 2102 * @param refreshing true = update an active admin, no error 2103 */ 2104 @Override 2105 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2106 if (!mHasFeature) { 2107 return; 2108 } 2109 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2110 } 2111 2112 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2113 Bundle onEnableData) { 2114 mContext.enforceCallingOrSelfPermission( 2115 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2116 enforceCrossUserPermission(userHandle); 2117 2118 DevicePolicyData policy = getUserData(userHandle); 2119 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle); 2120 if (info == null) { 2121 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2122 } 2123 synchronized (this) { 2124 long ident = binderClearCallingIdentity(); 2125 try { 2126 if (!refreshing 2127 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 2128 throw new IllegalArgumentException("Admin is already added"); 2129 } 2130 ActiveAdmin newAdmin = new ActiveAdmin(info); 2131 policy.mAdminMap.put(adminReceiver, newAdmin); 2132 int replaceIndex = -1; 2133 final int N = policy.mAdminList.size(); 2134 for (int i=0; i < N; i++) { 2135 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2136 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2137 replaceIndex = i; 2138 break; 2139 } 2140 } 2141 if (replaceIndex == -1) { 2142 policy.mAdminList.add(newAdmin); 2143 enableIfNecessary(info.getPackageName(), userHandle); 2144 } else { 2145 policy.mAdminList.set(replaceIndex, newAdmin); 2146 } 2147 saveSettingsLocked(userHandle); 2148 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2149 onEnableData, null); 2150 } finally { 2151 binderRestoreCallingIdentity(ident); 2152 } 2153 } 2154 } 2155 2156 @Override 2157 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2158 if (!mHasFeature) { 2159 return false; 2160 } 2161 enforceCrossUserPermission(userHandle); 2162 synchronized (this) { 2163 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2164 } 2165 } 2166 2167 @Override 2168 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2169 if (!mHasFeature) { 2170 return false; 2171 } 2172 enforceCrossUserPermission(userHandle); 2173 synchronized (this) { 2174 DevicePolicyData policyData = getUserData(userHandle); 2175 return policyData.mRemovingAdmins.contains(adminReceiver); 2176 } 2177 } 2178 2179 @Override 2180 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2181 if (!mHasFeature) { 2182 return false; 2183 } 2184 enforceCrossUserPermission(userHandle); 2185 synchronized (this) { 2186 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2187 if (administrator == null) { 2188 throw new SecurityException("No active admin " + adminReceiver); 2189 } 2190 return administrator.info.usesPolicy(policyId); 2191 } 2192 } 2193 2194 @Override 2195 @SuppressWarnings("unchecked") 2196 public List<ComponentName> getActiveAdmins(int userHandle) { 2197 if (!mHasFeature) { 2198 return Collections.EMPTY_LIST; 2199 } 2200 2201 enforceCrossUserPermission(userHandle); 2202 synchronized (this) { 2203 DevicePolicyData policy = getUserData(userHandle); 2204 final int N = policy.mAdminList.size(); 2205 if (N <= 0) { 2206 return null; 2207 } 2208 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2209 for (int i=0; i<N; i++) { 2210 res.add(policy.mAdminList.get(i).info.getComponent()); 2211 } 2212 return res; 2213 } 2214 } 2215 2216 @Override 2217 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2218 if (!mHasFeature) { 2219 return false; 2220 } 2221 enforceCrossUserPermission(userHandle); 2222 synchronized (this) { 2223 DevicePolicyData policy = getUserData(userHandle); 2224 final int N = policy.mAdminList.size(); 2225 for (int i=0; i<N; i++) { 2226 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2227 return true; 2228 } 2229 } 2230 return false; 2231 } 2232 } 2233 2234 @Override 2235 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 2236 if (!mHasFeature) { 2237 return; 2238 } 2239 enforceCrossUserPermission(userHandle); 2240 synchronized (this) { 2241 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2242 if (admin == null) { 2243 return; 2244 } 2245 if (admin.getUid() != binderGetCallingUid()) { 2246 // Active device owners must remain active admins. 2247 if (isDeviceOwner(adminReceiver.getPackageName())) { 2248 return; 2249 } 2250 mContext.enforceCallingOrSelfPermission( 2251 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2252 } 2253 long ident = binderClearCallingIdentity(); 2254 try { 2255 removeActiveAdminLocked(adminReceiver, userHandle); 2256 } finally { 2257 binderRestoreCallingIdentity(ident); 2258 } 2259 } 2260 } 2261 2262 @Override 2263 public void setPasswordQuality(ComponentName who, int quality) { 2264 if (!mHasFeature) { 2265 return; 2266 } 2267 Preconditions.checkNotNull(who, "ComponentName is null"); 2268 final int userHandle = UserHandle.getCallingUserId(); 2269 validateQualityConstant(quality); 2270 2271 synchronized (this) { 2272 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2273 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2274 if (ap.passwordQuality != quality) { 2275 ap.passwordQuality = quality; 2276 saveSettingsLocked(userHandle); 2277 } 2278 } 2279 } 2280 2281 @Override 2282 public int getPasswordQuality(ComponentName who, int userHandle) { 2283 if (!mHasFeature) { 2284 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2285 } 2286 enforceCrossUserPermission(userHandle); 2287 synchronized (this) { 2288 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2289 2290 if (who != null) { 2291 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2292 return admin != null ? admin.passwordQuality : mode; 2293 } 2294 2295 // Return strictest policy for this user and profiles that are visible from this user. 2296 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2297 for (UserInfo userInfo : profiles) { 2298 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2299 final int N = policy.mAdminList.size(); 2300 for (int i=0; i<N; i++) { 2301 ActiveAdmin admin = policy.mAdminList.get(i); 2302 if (mode < admin.passwordQuality) { 2303 mode = admin.passwordQuality; 2304 } 2305 } 2306 } 2307 return mode; 2308 } 2309 } 2310 2311 @Override 2312 public void setPasswordMinimumLength(ComponentName who, int length) { 2313 if (!mHasFeature) { 2314 return; 2315 } 2316 Preconditions.checkNotNull(who, "ComponentName is null"); 2317 final int userHandle = UserHandle.getCallingUserId(); 2318 synchronized (this) { 2319 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2320 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2321 if (ap.minimumPasswordLength != length) { 2322 ap.minimumPasswordLength = length; 2323 saveSettingsLocked(userHandle); 2324 } 2325 } 2326 } 2327 2328 @Override 2329 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 2330 if (!mHasFeature) { 2331 return 0; 2332 } 2333 enforceCrossUserPermission(userHandle); 2334 synchronized (this) { 2335 int length = 0; 2336 2337 if (who != null) { 2338 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2339 return admin != null ? admin.minimumPasswordLength : length; 2340 } 2341 2342 // Return strictest policy for this user and profiles that are visible from this user. 2343 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2344 for (UserInfo userInfo : profiles) { 2345 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2346 final int N = policy.mAdminList.size(); 2347 for (int i=0; i<N; i++) { 2348 ActiveAdmin admin = policy.mAdminList.get(i); 2349 if (length < admin.minimumPasswordLength) { 2350 length = admin.minimumPasswordLength; 2351 } 2352 } 2353 } 2354 return length; 2355 } 2356 } 2357 2358 @Override 2359 public void setPasswordHistoryLength(ComponentName who, int length) { 2360 if (!mHasFeature) { 2361 return; 2362 } 2363 Preconditions.checkNotNull(who, "ComponentName is null"); 2364 final int userHandle = UserHandle.getCallingUserId(); 2365 synchronized (this) { 2366 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2367 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2368 if (ap.passwordHistoryLength != length) { 2369 ap.passwordHistoryLength = length; 2370 saveSettingsLocked(userHandle); 2371 } 2372 } 2373 } 2374 2375 @Override 2376 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 2377 if (!mHasFeature) { 2378 return 0; 2379 } 2380 enforceCrossUserPermission(userHandle); 2381 synchronized (this) { 2382 int length = 0; 2383 2384 if (who != null) { 2385 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2386 return admin != null ? admin.passwordHistoryLength : length; 2387 } 2388 2389 // Return strictest policy for this user and profiles that are visible from this user. 2390 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2391 for (UserInfo userInfo : profiles) { 2392 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2393 final int N = policy.mAdminList.size(); 2394 for (int i = 0; i < N; i++) { 2395 ActiveAdmin admin = policy.mAdminList.get(i); 2396 if (length < admin.passwordHistoryLength) { 2397 length = admin.passwordHistoryLength; 2398 } 2399 } 2400 } 2401 return length; 2402 } 2403 } 2404 2405 @Override 2406 public void setPasswordExpirationTimeout(ComponentName who, long timeout) { 2407 if (!mHasFeature) { 2408 return; 2409 } 2410 Preconditions.checkNotNull(who, "ComponentName is null"); 2411 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 2412 final int userHandle = UserHandle.getCallingUserId(); 2413 synchronized (this) { 2414 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2415 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2416 // Calling this API automatically bumps the expiration date 2417 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2418 ap.passwordExpirationDate = expiration; 2419 ap.passwordExpirationTimeout = timeout; 2420 if (timeout > 0L) { 2421 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2422 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2423 .format(new Date(expiration))); 2424 } 2425 saveSettingsLocked(userHandle); 2426 // in case this is the first one 2427 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2428 } 2429 } 2430 2431 /** 2432 * Return a single admin's expiration cycle time, or the min of all cycle times. 2433 * Returns 0 if not configured. 2434 */ 2435 @Override 2436 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2437 if (!mHasFeature) { 2438 return 0L; 2439 } 2440 enforceCrossUserPermission(userHandle); 2441 synchronized (this) { 2442 long timeout = 0L; 2443 2444 if (who != null) { 2445 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2446 return admin != null ? admin.passwordExpirationTimeout : timeout; 2447 } 2448 2449 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2450 for (UserInfo userInfo : profiles) { 2451 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2452 final int N = policy.mAdminList.size(); 2453 for (int i = 0; i < N; i++) { 2454 ActiveAdmin admin = policy.mAdminList.get(i); 2455 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2456 && timeout > admin.passwordExpirationTimeout)) { 2457 timeout = admin.passwordExpirationTimeout; 2458 } 2459 } 2460 } 2461 return timeout; 2462 } 2463 } 2464 2465 @Override 2466 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2467 final int userId = UserHandle.getCallingUserId(); 2468 List<String> changedProviders = null; 2469 2470 synchronized (this) { 2471 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2472 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2473 if (activeAdmin.crossProfileWidgetProviders == null) { 2474 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2475 } 2476 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2477 if (!providers.contains(packageName)) { 2478 providers.add(packageName); 2479 changedProviders = new ArrayList<>(providers); 2480 saveSettingsLocked(userId); 2481 } 2482 } 2483 2484 if (changedProviders != null) { 2485 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2486 return true; 2487 } 2488 2489 return false; 2490 } 2491 2492 @Override 2493 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2494 final int userId = UserHandle.getCallingUserId(); 2495 List<String> changedProviders = null; 2496 2497 synchronized (this) { 2498 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2499 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2500 if (activeAdmin.crossProfileWidgetProviders == null) { 2501 return false; 2502 } 2503 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2504 if (providers.remove(packageName)) { 2505 changedProviders = new ArrayList<>(providers); 2506 saveSettingsLocked(userId); 2507 } 2508 } 2509 2510 if (changedProviders != null) { 2511 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2512 return true; 2513 } 2514 2515 return false; 2516 } 2517 2518 @Override 2519 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2520 synchronized (this) { 2521 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2522 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2523 if (activeAdmin.crossProfileWidgetProviders == null 2524 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2525 return null; 2526 } 2527 if (binderIsCallingUidMyUid()) { 2528 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2529 } else { 2530 return activeAdmin.crossProfileWidgetProviders; 2531 } 2532 } 2533 } 2534 2535 /** 2536 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2537 * Returns 0 if not configured. 2538 */ 2539 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2540 long timeout = 0L; 2541 2542 if (who != null) { 2543 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2544 return admin != null ? admin.passwordExpirationDate : timeout; 2545 } 2546 2547 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2548 for (UserInfo userInfo : profiles) { 2549 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2550 final int N = policy.mAdminList.size(); 2551 for (int i = 0; i < N; i++) { 2552 ActiveAdmin admin = policy.mAdminList.get(i); 2553 if (timeout == 0L || (admin.passwordExpirationDate != 0 2554 && timeout > admin.passwordExpirationDate)) { 2555 timeout = admin.passwordExpirationDate; 2556 } 2557 } 2558 } 2559 return timeout; 2560 } 2561 2562 @Override 2563 public long getPasswordExpiration(ComponentName who, int userHandle) { 2564 if (!mHasFeature) { 2565 return 0L; 2566 } 2567 enforceCrossUserPermission(userHandle); 2568 synchronized (this) { 2569 return getPasswordExpirationLocked(who, userHandle); 2570 } 2571 } 2572 2573 @Override 2574 public void setPasswordMinimumUpperCase(ComponentName who, int length) { 2575 if (!mHasFeature) { 2576 return; 2577 } 2578 Preconditions.checkNotNull(who, "ComponentName is null"); 2579 final int userHandle = UserHandle.getCallingUserId(); 2580 synchronized (this) { 2581 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2582 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2583 if (ap.minimumPasswordUpperCase != length) { 2584 ap.minimumPasswordUpperCase = length; 2585 saveSettingsLocked(userHandle); 2586 } 2587 } 2588 } 2589 2590 @Override 2591 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2592 if (!mHasFeature) { 2593 return 0; 2594 } 2595 enforceCrossUserPermission(userHandle); 2596 synchronized (this) { 2597 int length = 0; 2598 2599 if (who != null) { 2600 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2601 return admin != null ? admin.minimumPasswordUpperCase : length; 2602 } 2603 2604 // Return strictest policy for this user and profiles that are visible from this user. 2605 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2606 for (UserInfo userInfo : profiles) { 2607 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2608 final int N = policy.mAdminList.size(); 2609 for (int i=0; i<N; i++) { 2610 ActiveAdmin admin = policy.mAdminList.get(i); 2611 if (length < admin.minimumPasswordUpperCase) { 2612 length = admin.minimumPasswordUpperCase; 2613 } 2614 } 2615 } 2616 return length; 2617 } 2618 } 2619 2620 @Override 2621 public void setPasswordMinimumLowerCase(ComponentName who, int length) { 2622 Preconditions.checkNotNull(who, "ComponentName is null"); 2623 final int userHandle = UserHandle.getCallingUserId(); 2624 synchronized (this) { 2625 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2626 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2627 if (ap.minimumPasswordLowerCase != length) { 2628 ap.minimumPasswordLowerCase = length; 2629 saveSettingsLocked(userHandle); 2630 } 2631 } 2632 } 2633 2634 @Override 2635 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2636 if (!mHasFeature) { 2637 return 0; 2638 } 2639 enforceCrossUserPermission(userHandle); 2640 synchronized (this) { 2641 int length = 0; 2642 2643 if (who != null) { 2644 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2645 return admin != null ? admin.minimumPasswordLowerCase : length; 2646 } 2647 2648 // Return strictest policy for this user and profiles that are visible from this user. 2649 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2650 for (UserInfo userInfo : profiles) { 2651 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2652 final int N = policy.mAdminList.size(); 2653 for (int i=0; i<N; i++) { 2654 ActiveAdmin admin = policy.mAdminList.get(i); 2655 if (length < admin.minimumPasswordLowerCase) { 2656 length = admin.minimumPasswordLowerCase; 2657 } 2658 } 2659 } 2660 return length; 2661 } 2662 } 2663 2664 @Override 2665 public void setPasswordMinimumLetters(ComponentName who, int length) { 2666 if (!mHasFeature) { 2667 return; 2668 } 2669 Preconditions.checkNotNull(who, "ComponentName is null"); 2670 final int userHandle = UserHandle.getCallingUserId(); 2671 synchronized (this) { 2672 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2673 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2674 if (ap.minimumPasswordLetters != length) { 2675 ap.minimumPasswordLetters = length; 2676 saveSettingsLocked(userHandle); 2677 } 2678 } 2679 } 2680 2681 @Override 2682 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2683 if (!mHasFeature) { 2684 return 0; 2685 } 2686 enforceCrossUserPermission(userHandle); 2687 synchronized (this) { 2688 int length = 0; 2689 2690 if (who != null) { 2691 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2692 return admin != null ? admin.minimumPasswordLetters : length; 2693 } 2694 2695 // Return strictest policy for this user and profiles that are visible from this user. 2696 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2697 for (UserInfo userInfo : profiles) { 2698 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2699 final int N = policy.mAdminList.size(); 2700 for (int i=0; i<N; i++) { 2701 ActiveAdmin admin = policy.mAdminList.get(i); 2702 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2703 continue; 2704 } 2705 if (length < admin.minimumPasswordLetters) { 2706 length = admin.minimumPasswordLetters; 2707 } 2708 } 2709 } 2710 return length; 2711 } 2712 } 2713 2714 @Override 2715 public void setPasswordMinimumNumeric(ComponentName who, int length) { 2716 if (!mHasFeature) { 2717 return; 2718 } 2719 Preconditions.checkNotNull(who, "ComponentName is null"); 2720 final int userHandle = UserHandle.getCallingUserId(); 2721 synchronized (this) { 2722 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2723 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2724 if (ap.minimumPasswordNumeric != length) { 2725 ap.minimumPasswordNumeric = length; 2726 saveSettingsLocked(userHandle); 2727 } 2728 } 2729 } 2730 2731 @Override 2732 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2733 if (!mHasFeature) { 2734 return 0; 2735 } 2736 enforceCrossUserPermission(userHandle); 2737 synchronized (this) { 2738 int length = 0; 2739 2740 if (who != null) { 2741 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2742 return admin != null ? admin.minimumPasswordNumeric : length; 2743 } 2744 2745 // Return strictest policy for this user and profiles that are visible from this user. 2746 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2747 for (UserInfo userInfo : profiles) { 2748 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2749 final int N = policy.mAdminList.size(); 2750 for (int i = 0; i < N; i++) { 2751 ActiveAdmin admin = policy.mAdminList.get(i); 2752 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2753 continue; 2754 } 2755 if (length < admin.minimumPasswordNumeric) { 2756 length = admin.minimumPasswordNumeric; 2757 } 2758 } 2759 } 2760 return length; 2761 } 2762 } 2763 2764 @Override 2765 public void setPasswordMinimumSymbols(ComponentName who, int length) { 2766 if (!mHasFeature) { 2767 return; 2768 } 2769 Preconditions.checkNotNull(who, "ComponentName is null"); 2770 final int userHandle = UserHandle.getCallingUserId(); 2771 synchronized (this) { 2772 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2773 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2774 if (ap.minimumPasswordSymbols != length) { 2775 ap.minimumPasswordSymbols = length; 2776 saveSettingsLocked(userHandle); 2777 } 2778 } 2779 } 2780 2781 @Override 2782 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 2783 if (!mHasFeature) { 2784 return 0; 2785 } 2786 enforceCrossUserPermission(userHandle); 2787 synchronized (this) { 2788 int length = 0; 2789 2790 if (who != null) { 2791 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2792 return admin != null ? admin.minimumPasswordSymbols : length; 2793 } 2794 2795 // Return strictest policy for this user and profiles that are visible from this user. 2796 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2797 for (UserInfo userInfo : profiles) { 2798 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2799 final int N = policy.mAdminList.size(); 2800 for (int i=0; i<N; i++) { 2801 ActiveAdmin admin = policy.mAdminList.get(i); 2802 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2803 continue; 2804 } 2805 if (length < admin.minimumPasswordSymbols) { 2806 length = admin.minimumPasswordSymbols; 2807 } 2808 } 2809 } 2810 return length; 2811 } 2812 } 2813 2814 @Override 2815 public void setPasswordMinimumNonLetter(ComponentName who, int length) { 2816 if (!mHasFeature) { 2817 return; 2818 } 2819 Preconditions.checkNotNull(who, "ComponentName is null"); 2820 final int userHandle = UserHandle.getCallingUserId(); 2821 synchronized (this) { 2822 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2823 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2824 if (ap.minimumPasswordNonLetter != length) { 2825 ap.minimumPasswordNonLetter = length; 2826 saveSettingsLocked(userHandle); 2827 } 2828 } 2829 } 2830 2831 @Override 2832 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 2833 if (!mHasFeature) { 2834 return 0; 2835 } 2836 enforceCrossUserPermission(userHandle); 2837 synchronized (this) { 2838 int length = 0; 2839 2840 if (who != null) { 2841 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2842 return admin != null ? admin.minimumPasswordNonLetter : length; 2843 } 2844 2845 // Return strictest policy for this user and profiles that are visible from this user. 2846 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2847 for (UserInfo userInfo : profiles) { 2848 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2849 final int N = policy.mAdminList.size(); 2850 for (int i=0; i<N; i++) { 2851 ActiveAdmin admin = policy.mAdminList.get(i); 2852 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2853 continue; 2854 } 2855 if (length < admin.minimumPasswordNonLetter) { 2856 length = admin.minimumPasswordNonLetter; 2857 } 2858 } 2859 } 2860 return length; 2861 } 2862 } 2863 2864 @Override 2865 public boolean isActivePasswordSufficient(int userHandle) { 2866 if (!mHasFeature) { 2867 return true; 2868 } 2869 enforceCrossUserPermission(userHandle); 2870 2871 synchronized (this) { 2872 2873 // The active password is stored in the user that runs the launcher 2874 // If the user this is called from is part of a profile group, that is the parent 2875 // of the group. 2876 UserInfo parent = getProfileParent(userHandle); 2877 int id = (parent == null) ? userHandle : parent.id; 2878 DevicePolicyData policy = getUserDataUnchecked(id); 2879 2880 // This API can only be called by an active device admin, 2881 // so try to retrieve it to check that the caller is one. 2882 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2883 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 2884 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 2885 return false; 2886 } 2887 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2888 return true; 2889 } 2890 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 2891 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 2892 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 2893 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 2894 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 2895 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 2896 } 2897 } 2898 2899 @Override 2900 public int getCurrentFailedPasswordAttempts(int userHandle) { 2901 synchronized (this) { 2902 // This API can only be called by an active device admin, 2903 // so try to retrieve it to check that the caller is one. 2904 getActiveAdminForCallerLocked(null, 2905 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2906 2907 // The active password is stored in the parent. 2908 UserInfo parent = getProfileParent(userHandle); 2909 int id = (parent == null) ? userHandle : parent.id; 2910 DevicePolicyData policy = getUserDataUnchecked(id); 2911 2912 return policy.mFailedPasswordAttempts; 2913 } 2914 } 2915 2916 @Override 2917 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) { 2918 if (!mHasFeature) { 2919 return; 2920 } 2921 Preconditions.checkNotNull(who, "ComponentName is null"); 2922 final int userHandle = UserHandle.getCallingUserId(); 2923 synchronized (this) { 2924 // This API can only be called by an active device admin, 2925 // so try to retrieve it to check that the caller is one. 2926 getActiveAdminForCallerLocked(who, 2927 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 2928 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2929 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2930 if (ap.maximumFailedPasswordsForWipe != num) { 2931 ap.maximumFailedPasswordsForWipe = num; 2932 saveSettingsLocked(userHandle); 2933 } 2934 } 2935 } 2936 2937 @Override 2938 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 2939 if (!mHasFeature) { 2940 return 0; 2941 } 2942 enforceCrossUserPermission(userHandle); 2943 synchronized (this) { 2944 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 2945 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 2946 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 2947 } 2948 } 2949 2950 @Override 2951 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle) { 2952 if (!mHasFeature) { 2953 return UserHandle.USER_NULL; 2954 } 2955 enforceCrossUserPermission(userHandle); 2956 synchronized (this) { 2957 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 2958 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 2959 } 2960 } 2961 2962 /** 2963 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 2964 * profiles that are visible from this user. If the policy for the primary and any other profile 2965 * are equal, it returns the admin for the primary profile. 2966 * Returns {@code null} if none of them have that policy set. 2967 */ 2968 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 2969 int count = 0; 2970 ActiveAdmin strictestAdmin = null; 2971 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 2972 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2973 for (ActiveAdmin admin : policy.mAdminList) { 2974 if (admin.maximumFailedPasswordsForWipe == 2975 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 2976 continue; // No max number of failed passwords policy set for this profile. 2977 } 2978 2979 // We always favor the primary profile if several profiles have the same value set. 2980 if (count == 0 || 2981 count > admin.maximumFailedPasswordsForWipe || 2982 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 2983 count = admin.maximumFailedPasswordsForWipe; 2984 strictestAdmin = admin; 2985 } 2986 } 2987 } 2988 return strictestAdmin; 2989 } 2990 2991 @Override 2992 public boolean resetPassword(String passwordOrNull, int flags) { 2993 if (!mHasFeature) { 2994 return false; 2995 } 2996 final int userHandle = UserHandle.getCallingUserId(); 2997 enforceNotManagedProfile(userHandle, "reset the password"); 2998 2999 String password = passwordOrNull != null ? passwordOrNull : ""; 3000 3001 int quality; 3002 synchronized (this) { 3003 // This api can only be called by an active device admin, 3004 // so try to retrieve it to check that the caller is one. 3005 getActiveAdminForCallerLocked(null, 3006 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3007 quality = getPasswordQuality(null, userHandle); 3008 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3009 int realQuality = LockPatternUtils.computePasswordQuality(password); 3010 if (realQuality < quality 3011 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3012 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3013 + Integer.toHexString(realQuality) 3014 + " does not meet required quality 0x" 3015 + Integer.toHexString(quality)); 3016 return false; 3017 } 3018 quality = Math.max(realQuality, quality); 3019 } 3020 int length = getPasswordMinimumLength(null, userHandle); 3021 if (password.length() < length) { 3022 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3023 + " does not meet required length " + length); 3024 return false; 3025 } 3026 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3027 int letters = 0; 3028 int uppercase = 0; 3029 int lowercase = 0; 3030 int numbers = 0; 3031 int symbols = 0; 3032 int nonletter = 0; 3033 for (int i = 0; i < password.length(); i++) { 3034 char c = password.charAt(i); 3035 if (c >= 'A' && c <= 'Z') { 3036 letters++; 3037 uppercase++; 3038 } else if (c >= 'a' && c <= 'z') { 3039 letters++; 3040 lowercase++; 3041 } else if (c >= '0' && c <= '9') { 3042 numbers++; 3043 nonletter++; 3044 } else { 3045 symbols++; 3046 nonletter++; 3047 } 3048 } 3049 int neededLetters = getPasswordMinimumLetters(null, userHandle); 3050 if(letters < neededLetters) { 3051 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 3052 + " does not meet required number of letters " + neededLetters); 3053 return false; 3054 } 3055 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 3056 if (numbers < neededNumbers) { 3057 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 3058 + " does not meet required number of numerical digits " 3059 + neededNumbers); 3060 return false; 3061 } 3062 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 3063 if (lowercase < neededLowerCase) { 3064 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 3065 + " does not meet required number of lowercase letters " 3066 + neededLowerCase); 3067 return false; 3068 } 3069 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 3070 if (uppercase < neededUpperCase) { 3071 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 3072 + " does not meet required number of uppercase letters " 3073 + neededUpperCase); 3074 return false; 3075 } 3076 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 3077 if (symbols < neededSymbols) { 3078 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 3079 + " does not meet required number of special symbols " + neededSymbols); 3080 return false; 3081 } 3082 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 3083 if (nonletter < neededNonLetter) { 3084 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 3085 + " does not meet required number of non-letter characters " 3086 + neededNonLetter); 3087 return false; 3088 } 3089 } 3090 } 3091 3092 int callingUid = binderGetCallingUid(); 3093 DevicePolicyData policy = getUserData(userHandle); 3094 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 3095 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 3096 return false; 3097 } 3098 3099 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwnerOrInitializer(callingUid); 3100 boolean doNotAskCredentialsOnBoot = 3101 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 3102 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 3103 setDoNotAskCredentialsOnBoot(); 3104 } 3105 3106 // Don't do this with the lock held, because it is going to call 3107 // back in to the service. 3108 long ident = binderClearCallingIdentity(); 3109 try { 3110 LockPatternUtils utils = new LockPatternUtils(mContext); 3111 if (!TextUtils.isEmpty(password)) { 3112 utils.saveLockPassword(password, null, quality, userHandle); 3113 } else { 3114 utils.clearLock(userHandle); 3115 } 3116 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 3117 if (requireEntry) { 3118 utils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 3119 UserHandle.USER_ALL); 3120 } 3121 synchronized (this) { 3122 int newOwner = requireEntry ? callingUid : -1; 3123 if (policy.mPasswordOwner != newOwner) { 3124 policy.mPasswordOwner = newOwner; 3125 saveSettingsLocked(userHandle); 3126 } 3127 } 3128 } finally { 3129 binderRestoreCallingIdentity(ident); 3130 } 3131 3132 return true; 3133 } 3134 3135 private void setDoNotAskCredentialsOnBoot() { 3136 synchronized (this) { 3137 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3138 if (!policyData.doNotAskCredentialsOnBoot) { 3139 policyData.doNotAskCredentialsOnBoot = true; 3140 saveSettingsLocked(UserHandle.USER_SYSTEM); 3141 } 3142 } 3143 } 3144 3145 @Override 3146 public boolean getDoNotAskCredentialsOnBoot() { 3147 mContext.enforceCallingOrSelfPermission( 3148 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 3149 synchronized (this) { 3150 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3151 return policyData.doNotAskCredentialsOnBoot; 3152 } 3153 } 3154 3155 @Override 3156 public void setMaximumTimeToLock(ComponentName who, long timeMs) { 3157 if (!mHasFeature) { 3158 return; 3159 } 3160 Preconditions.checkNotNull(who, "ComponentName is null"); 3161 final int userHandle = UserHandle.getCallingUserId(); 3162 synchronized (this) { 3163 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3164 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3165 if (ap.maximumTimeToUnlock != timeMs) { 3166 ap.maximumTimeToUnlock = timeMs; 3167 saveSettingsLocked(userHandle); 3168 updateMaximumTimeToLockLocked(getUserData(userHandle)); 3169 } 3170 } 3171 } 3172 3173 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 3174 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 3175 if (policy.mLastMaximumTimeToLock == timeMs) { 3176 return; 3177 } 3178 3179 long ident = binderClearCallingIdentity(); 3180 try { 3181 if (timeMs <= 0) { 3182 timeMs = Integer.MAX_VALUE; 3183 } else { 3184 // Make sure KEEP_SCREEN_ON is disabled, since that 3185 // would allow bypassing of the maximum time to lock. 3186 Settings.Global.putInt(mContext.getContentResolver(), 3187 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 3188 } 3189 3190 policy.mLastMaximumTimeToLock = timeMs; 3191 mPowerManagerInternal.setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 3192 } finally { 3193 binderRestoreCallingIdentity(ident); 3194 } 3195 } 3196 3197 @Override 3198 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 3199 if (!mHasFeature) { 3200 return 0; 3201 } 3202 enforceCrossUserPermission(userHandle); 3203 synchronized (this) { 3204 long time = 0; 3205 3206 if (who != null) { 3207 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3208 return admin != null ? admin.maximumTimeToUnlock : time; 3209 } 3210 3211 // Return strictest policy for this user and profiles that are visible from this user. 3212 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3213 for (UserInfo userInfo : profiles) { 3214 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3215 final int N = policy.mAdminList.size(); 3216 for (int i=0; i<N; i++) { 3217 ActiveAdmin admin = policy.mAdminList.get(i); 3218 if (time == 0) { 3219 time = admin.maximumTimeToUnlock; 3220 } else if (admin.maximumTimeToUnlock != 0 3221 && time > admin.maximumTimeToUnlock) { 3222 time = admin.maximumTimeToUnlock; 3223 } 3224 } 3225 } 3226 return time; 3227 } 3228 } 3229 3230 @Override 3231 public void lockNow() { 3232 if (!mHasFeature) { 3233 return; 3234 } 3235 synchronized (this) { 3236 // This API can only be called by an active device admin, 3237 // so try to retrieve it to check that the caller is one. 3238 getActiveAdminForCallerLocked(null, 3239 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3240 lockNowUnchecked(); 3241 } 3242 } 3243 3244 private void lockNowUnchecked() { 3245 long ident = binderClearCallingIdentity(); 3246 try { 3247 // Power off the display 3248 powerManagerGoToSleep(SystemClock.uptimeMillis(), 3249 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 3250 // Ensure the device is locked 3251 new LockPatternUtils(mContext).requireStrongAuth( 3252 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, UserHandle.USER_ALL); 3253 mIWindowManager.lockNow(null); 3254 } catch (RemoteException e) { 3255 } finally { 3256 binderRestoreCallingIdentity(ident); 3257 } 3258 } 3259 3260 private boolean isExtStorageEncrypted() { 3261 String state = systemPropertiesGet("vold.decrypt"); 3262 return !"".equals(state); 3263 } 3264 3265 @Override 3266 public void enforceCanManageCaCerts(ComponentName who) { 3267 if (who == null) { 3268 if (!isCallerDelegatedCertInstaller()) { 3269 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 3270 } 3271 } else { 3272 synchronized (this) { 3273 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3274 } 3275 } 3276 } 3277 3278 private boolean isCallerDelegatedCertInstaller() { 3279 final int callingUid = binderGetCallingUid(); 3280 final int userHandle = UserHandle.getUserId(callingUid); 3281 synchronized (this) { 3282 final DevicePolicyData policy = getUserData(userHandle); 3283 if (policy.mDelegatedCertInstallerPackage == null) { 3284 return false; 3285 } 3286 3287 try { 3288 int uid = mContext.getPackageManager().getPackageUid( 3289 policy.mDelegatedCertInstallerPackage, userHandle); 3290 return uid == callingUid; 3291 } catch (NameNotFoundException e) { 3292 return false; 3293 } 3294 } 3295 } 3296 3297 @Override 3298 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 3299 enforceCanManageCaCerts(admin); 3300 3301 byte[] pemCert; 3302 try { 3303 X509Certificate cert = parseCert(certBuffer); 3304 pemCert = Credentials.convertToPem(cert); 3305 } catch (CertificateException ce) { 3306 Log.e(LOG_TAG, "Problem converting cert", ce); 3307 return false; 3308 } catch (IOException ioe) { 3309 Log.e(LOG_TAG, "Problem reading cert", ioe); 3310 return false; 3311 } 3312 3313 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3314 final long id = binderClearCallingIdentity(); 3315 try { 3316 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3317 try { 3318 keyChainConnection.getService().installCaCertificate(pemCert); 3319 return true; 3320 } catch (RemoteException e) { 3321 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 3322 } finally { 3323 keyChainConnection.close(); 3324 } 3325 } catch (InterruptedException e1) { 3326 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 3327 Thread.currentThread().interrupt(); 3328 } finally { 3329 binderRestoreCallingIdentity(id); 3330 } 3331 return false; 3332 } 3333 3334 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 3335 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 3336 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 3337 certBuffer)); 3338 } 3339 3340 @Override 3341 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 3342 enforceCanManageCaCerts(admin); 3343 3344 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3345 final long id = binderClearCallingIdentity(); 3346 try { 3347 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3348 try { 3349 for (int i = 0 ; i < aliases.length; i++) { 3350 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 3351 } 3352 } catch (RemoteException e) { 3353 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 3354 } finally { 3355 keyChainConnection.close(); 3356 } 3357 } catch (InterruptedException ie) { 3358 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 3359 Thread.currentThread().interrupt(); 3360 } finally { 3361 binderRestoreCallingIdentity(id); 3362 } 3363 } 3364 3365 @Override 3366 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 3367 if (who == null) { 3368 if (!isCallerDelegatedCertInstaller()) { 3369 throw new SecurityException("who == null, but caller is not cert installer"); 3370 } 3371 } else { 3372 synchronized (this) { 3373 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3374 } 3375 } 3376 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3377 final long id = binderClearCallingIdentity(); 3378 try { 3379 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3380 try { 3381 IKeyChainService keyChain = keyChainConnection.getService(); 3382 return keyChain.installKeyPair(privKey, cert, alias); 3383 } catch (RemoteException e) { 3384 Log.e(LOG_TAG, "Installing certificate", e); 3385 } finally { 3386 keyChainConnection.close(); 3387 } 3388 } catch (InterruptedException e) { 3389 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 3390 Thread.currentThread().interrupt(); 3391 } finally { 3392 binderRestoreCallingIdentity(id); 3393 } 3394 return false; 3395 } 3396 3397 @Override 3398 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 3399 final IBinder response) { 3400 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 3401 if (UserHandle.getAppId(binderGetCallingUid()) != Process.SYSTEM_UID) { 3402 return; 3403 } 3404 3405 final UserHandle caller = binderGetCallingUserHandle(); 3406 // If there is a profile owner, redirect to that; otherwise query the device owner. 3407 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 3408 if (aliasChooser == null && caller.isOwner()) { 3409 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdmin(); 3410 if (deviceOwnerAdmin != null) { 3411 aliasChooser = deviceOwnerAdmin.info.getComponent(); 3412 } 3413 } 3414 if (aliasChooser == null) { 3415 sendPrivateKeyAliasResponse(null, response); 3416 return; 3417 } 3418 3419 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 3420 intent.setComponent(aliasChooser); 3421 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 3422 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 3423 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 3424 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 3425 3426 final long id = binderClearCallingIdentity(); 3427 try { 3428 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 3429 @Override 3430 public void onReceive(Context context, Intent intent) { 3431 final String chosenAlias = getResultData(); 3432 sendPrivateKeyAliasResponse(chosenAlias, response); 3433 } 3434 }, null, Activity.RESULT_OK, null, null); 3435 } finally { 3436 binderRestoreCallingIdentity(id); 3437 } 3438 } 3439 3440 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 3441 final IKeyChainAliasCallback keyChainAliasResponse = 3442 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 3443 new AsyncTask<Void, Void, Void>() { 3444 @Override 3445 protected Void doInBackground(Void... unused) { 3446 try { 3447 keyChainAliasResponse.alias(alias); 3448 } catch (Exception e) { 3449 // Catch everything (not just RemoteException): caller could throw a 3450 // RuntimeException back across processes. 3451 Log.e(LOG_TAG, "error while responding to callback", e); 3452 } 3453 return null; 3454 } 3455 }.execute(); 3456 } 3457 3458 @Override 3459 public void setCertInstallerPackage(ComponentName who, String installerPackage) 3460 throws SecurityException { 3461 int userHandle = UserHandle.getCallingUserId(); 3462 synchronized (this) { 3463 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3464 DevicePolicyData policy = getUserData(userHandle); 3465 policy.mDelegatedCertInstallerPackage = installerPackage; 3466 saveSettingsLocked(userHandle); 3467 } 3468 } 3469 3470 @Override 3471 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 3472 int userHandle = UserHandle.getCallingUserId(); 3473 synchronized (this) { 3474 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3475 DevicePolicyData policy = getUserData(userHandle); 3476 return policy.mDelegatedCertInstallerPackage; 3477 } 3478 } 3479 3480 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 3481 if (wipeExtRequested) { 3482 StorageManager sm = (StorageManager) mContext.getSystemService( 3483 Context.STORAGE_SERVICE); 3484 sm.wipeAdoptableDisks(); 3485 } 3486 try { 3487 RecoverySystem.rebootWipeUserData(mContext, reason); 3488 } catch (IOException | SecurityException e) { 3489 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 3490 } 3491 } 3492 3493 @Override 3494 public void wipeData(int flags, final int userHandle) { 3495 if (!mHasFeature) { 3496 return; 3497 } 3498 enforceCrossUserPermission(userHandle); 3499 synchronized (this) { 3500 // This API can only be called by an active device admin, 3501 // so try to retrieve it to check that the caller is one. 3502 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 3503 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3504 3505 final String source = admin.info.getComponent().flattenToShortString(); 3506 3507 long ident = binderClearCallingIdentity(); 3508 try { 3509 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 3510 boolean ownsInitialization = isDeviceInitializer(admin.info.getPackageName()) 3511 && !hasUserSetupCompleted(userHandle); 3512 if (userHandle != UserHandle.USER_SYSTEM 3513 || !(isDeviceOwner(admin.info.getPackageName()) 3514 || ownsInitialization)) { 3515 throw new SecurityException( 3516 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 3517 } 3518 PersistentDataBlockManager manager = (PersistentDataBlockManager) 3519 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 3520 if (manager != null) { 3521 manager.wipe(); 3522 } 3523 } 3524 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 3525 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 3526 "DevicePolicyManager.wipeData() from " + source); 3527 } finally { 3528 binderRestoreCallingIdentity(ident); 3529 } 3530 } 3531 } 3532 3533 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 3534 if (userHandle == UserHandle.USER_SYSTEM) { 3535 wipeDataLocked(wipeExtRequested, reason); 3536 } else { 3537 mHandler.post(new Runnable() { 3538 @Override 3539 public void run() { 3540 try { 3541 IActivityManager am = getIActivityManager(); 3542 if (am.getCurrentUser().id == userHandle) { 3543 am.switchUser(UserHandle.USER_SYSTEM); 3544 } 3545 3546 boolean isManagedProfile = isManagedProfile(userHandle); 3547 if (!mUserManager.removeUser(userHandle)) { 3548 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 3549 } else if (isManagedProfile) { 3550 sendWipeProfileNotification(); 3551 } 3552 } catch (RemoteException re) { 3553 // Shouldn't happen 3554 } 3555 } 3556 }); 3557 } 3558 } 3559 3560 private void sendWipeProfileNotification() { 3561 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 3562 Notification notification = new Notification.Builder(mContext) 3563 .setSmallIcon(android.R.drawable.stat_sys_warning) 3564 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 3565 .setContentText(contentText) 3566 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 3567 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 3568 .build(); 3569 mNotificationManager.notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 3570 } 3571 3572 private void clearWipeProfileNotification() { 3573 mNotificationManager.cancel(PROFILE_WIPED_NOTIFICATION_ID); 3574 } 3575 3576 @Override 3577 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 3578 if (!mHasFeature) { 3579 return; 3580 } 3581 enforceCrossUserPermission(userHandle); 3582 mContext.enforceCallingOrSelfPermission( 3583 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3584 3585 synchronized (this) { 3586 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 3587 if (admin == null) { 3588 try { 3589 result.sendResult(null); 3590 } catch (RemoteException e) { 3591 } 3592 return; 3593 } 3594 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3595 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3596 intent.setComponent(admin.info.getComponent()); 3597 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3598 null, new BroadcastReceiver() { 3599 @Override 3600 public void onReceive(Context context, Intent intent) { 3601 try { 3602 result.sendResult(getResultExtras(false)); 3603 } catch (RemoteException e) { 3604 } 3605 } 3606 }, null, Activity.RESULT_OK, null, null); 3607 } 3608 } 3609 3610 @Override 3611 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3612 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3613 if (!mHasFeature) { 3614 return; 3615 } 3616 enforceCrossUserPermission(userHandle); 3617 enforceNotManagedProfile(userHandle, "set the active password"); 3618 3619 mContext.enforceCallingOrSelfPermission( 3620 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3621 DevicePolicyData p = getUserData(userHandle); 3622 3623 validateQualityConstant(quality); 3624 3625 synchronized (this) { 3626 if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length 3627 || p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters 3628 || p.mActivePasswordUpperCase != uppercase 3629 || p.mActivePasswordLowerCase != lowercase 3630 || p.mActivePasswordNumeric != numbers 3631 || p.mActivePasswordSymbols != symbols 3632 || p.mActivePasswordNonLetter != nonletter) { 3633 long ident = binderClearCallingIdentity(); 3634 try { 3635 p.mActivePasswordQuality = quality; 3636 p.mActivePasswordLength = length; 3637 p.mActivePasswordLetters = letters; 3638 p.mActivePasswordLowerCase = lowercase; 3639 p.mActivePasswordUpperCase = uppercase; 3640 p.mActivePasswordNumeric = numbers; 3641 p.mActivePasswordSymbols = symbols; 3642 p.mActivePasswordNonLetter = nonletter; 3643 p.mFailedPasswordAttempts = 0; 3644 saveSettingsLocked(userHandle); 3645 updatePasswordExpirationsLocked(userHandle); 3646 setExpirationAlarmCheckLocked(mContext, p); 3647 sendAdminCommandToSelfAndProfilesLocked( 3648 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3649 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3650 } finally { 3651 binderRestoreCallingIdentity(ident); 3652 } 3653 } 3654 } 3655 } 3656 3657 /** 3658 * Called any time the device password is updated. Resets all password expiration clocks. 3659 */ 3660 private void updatePasswordExpirationsLocked(int userHandle) { 3661 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3662 for (UserInfo userInfo : profiles) { 3663 int profileId = userInfo.id; 3664 DevicePolicyData policy = getUserDataUnchecked(profileId); 3665 final int N = policy.mAdminList.size(); 3666 if (N > 0) { 3667 for (int i=0; i<N; i++) { 3668 ActiveAdmin admin = policy.mAdminList.get(i); 3669 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3670 long timeout = admin.passwordExpirationTimeout; 3671 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3672 admin.passwordExpirationDate = expiration; 3673 } 3674 } 3675 } 3676 saveSettingsLocked(profileId); 3677 } 3678 } 3679 3680 @Override 3681 public void reportFailedPasswordAttempt(int userHandle) { 3682 enforceCrossUserPermission(userHandle); 3683 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3684 mContext.enforceCallingOrSelfPermission( 3685 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3686 3687 long ident = binderClearCallingIdentity(); 3688 try { 3689 boolean wipeData = false; 3690 int identifier = 0; 3691 synchronized (this) { 3692 DevicePolicyData policy = getUserData(userHandle); 3693 policy.mFailedPasswordAttempts++; 3694 saveSettingsLocked(userHandle); 3695 if (mHasFeature) { 3696 ActiveAdmin strictestAdmin = 3697 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3698 int max = strictestAdmin != null 3699 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3700 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 3701 // Wipe the user/profile associated with the policy that was violated. This 3702 // is not necessarily calling user: if the policy that fired was from a 3703 // managed profile rather than the main user profile, we wipe former only. 3704 wipeData = true; 3705 identifier = strictestAdmin.getUserHandle().getIdentifier(); 3706 } 3707 sendAdminCommandToSelfAndProfilesLocked( 3708 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 3709 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3710 } 3711 } 3712 if (wipeData) { 3713 // Call without holding lock. 3714 wipeDeviceOrUserLocked(false, identifier, 3715 "reportFailedPasswordAttempt()"); 3716 } 3717 } finally { 3718 binderRestoreCallingIdentity(ident); 3719 } 3720 } 3721 3722 @Override 3723 public void reportSuccessfulPasswordAttempt(int userHandle) { 3724 enforceCrossUserPermission(userHandle); 3725 mContext.enforceCallingOrSelfPermission( 3726 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3727 3728 synchronized (this) { 3729 DevicePolicyData policy = getUserData(userHandle); 3730 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 3731 long ident = binderClearCallingIdentity(); 3732 try { 3733 policy.mFailedPasswordAttempts = 0; 3734 policy.mPasswordOwner = -1; 3735 saveSettingsLocked(userHandle); 3736 if (mHasFeature) { 3737 sendAdminCommandToSelfAndProfilesLocked( 3738 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 3739 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3740 } 3741 } finally { 3742 binderRestoreCallingIdentity(ident); 3743 } 3744 } 3745 } 3746 } 3747 3748 @Override 3749 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 3750 String exclusionList) { 3751 if (!mHasFeature) { 3752 return null; 3753 } 3754 synchronized(this) { 3755 Preconditions.checkNotNull(who, "ComponentName is null"); 3756 3757 // Only check if system user has set global proxy. We don't allow other users to set it. 3758 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 3759 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3760 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 3761 3762 // Scan through active admins and find if anyone has already 3763 // set the global proxy. 3764 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 3765 for (ComponentName component : compSet) { 3766 ActiveAdmin ap = policy.mAdminMap.get(component); 3767 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 3768 // Another admin already sets the global proxy 3769 // Return it to the caller. 3770 return component; 3771 } 3772 } 3773 3774 // If the user is not system, don't set the global proxy. Fail silently. 3775 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 3776 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 3777 + UserHandle.getCallingUserId() + " is not permitted."); 3778 return null; 3779 } 3780 if (proxySpec == null) { 3781 admin.specifiesGlobalProxy = false; 3782 admin.globalProxySpec = null; 3783 admin.globalProxyExclusionList = null; 3784 } else { 3785 3786 admin.specifiesGlobalProxy = true; 3787 admin.globalProxySpec = proxySpec; 3788 admin.globalProxyExclusionList = exclusionList; 3789 } 3790 3791 // Reset the global proxy accordingly 3792 // Do this using system permissions, as apps cannot write to secure settings 3793 long origId = binderClearCallingIdentity(); 3794 try { 3795 resetGlobalProxyLocked(policy); 3796 } finally { 3797 binderRestoreCallingIdentity(origId); 3798 } 3799 return null; 3800 } 3801 } 3802 3803 @Override 3804 public ComponentName getGlobalProxyAdmin(int userHandle) { 3805 if (!mHasFeature) { 3806 return null; 3807 } 3808 enforceCrossUserPermission(userHandle); 3809 synchronized(this) { 3810 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 3811 // Scan through active admins and find if anyone has already 3812 // set the global proxy. 3813 final int N = policy.mAdminList.size(); 3814 for (int i = 0; i < N; i++) { 3815 ActiveAdmin ap = policy.mAdminList.get(i); 3816 if (ap.specifiesGlobalProxy) { 3817 // Device admin sets the global proxy 3818 // Return it to the caller. 3819 return ap.info.getComponent(); 3820 } 3821 } 3822 } 3823 // No device admin sets the global proxy. 3824 return null; 3825 } 3826 3827 @Override 3828 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 3829 synchronized (this) { 3830 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3831 } 3832 long token = binderClearCallingIdentity(); 3833 try { 3834 ConnectivityManager connectivityManager = (ConnectivityManager) 3835 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 3836 connectivityManager.setGlobalProxy(proxyInfo); 3837 } finally { 3838 binderRestoreCallingIdentity(token); 3839 } 3840 } 3841 3842 private void resetGlobalProxyLocked(DevicePolicyData policy) { 3843 final int N = policy.mAdminList.size(); 3844 for (int i = 0; i < N; i++) { 3845 ActiveAdmin ap = policy.mAdminList.get(i); 3846 if (ap.specifiesGlobalProxy) { 3847 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 3848 return; 3849 } 3850 } 3851 // No device admins defining global proxies - reset global proxy settings to none 3852 saveGlobalProxyLocked(null, null); 3853 } 3854 3855 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 3856 if (exclusionList == null) { 3857 exclusionList = ""; 3858 } 3859 if (proxySpec == null) { 3860 proxySpec = ""; 3861 } 3862 // Remove white spaces 3863 proxySpec = proxySpec.trim(); 3864 String data[] = proxySpec.split(":"); 3865 int proxyPort = 8080; 3866 if (data.length > 1) { 3867 try { 3868 proxyPort = Integer.parseInt(data[1]); 3869 } catch (NumberFormatException e) {} 3870 } 3871 exclusionList = exclusionList.trim(); 3872 ContentResolver res = mContext.getContentResolver(); 3873 3874 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 3875 if (!proxyProperties.isValid()) { 3876 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3877 return; 3878 } 3879 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 3880 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 3881 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 3882 exclusionList); 3883 } 3884 3885 /** 3886 * Set the storage encryption request for a single admin. Returns the new total request 3887 * status (for all admins). 3888 */ 3889 @Override 3890 public int setStorageEncryption(ComponentName who, boolean encrypt) { 3891 if (!mHasFeature) { 3892 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3893 } 3894 Preconditions.checkNotNull(who, "ComponentName is null"); 3895 final int userHandle = UserHandle.getCallingUserId(); 3896 synchronized (this) { 3897 // Check for permissions 3898 // Only system user can set storage encryption 3899 if (userHandle != UserHandle.USER_SYSTEM) { 3900 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 3901 + UserHandle.getCallingUserId() + " is not permitted."); 3902 return 0; 3903 } 3904 3905 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3906 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 3907 3908 // Quick exit: If the filesystem does not support encryption, we can exit early. 3909 if (!isEncryptionSupported()) { 3910 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3911 } 3912 3913 // (1) Record the value for the admin so it's sticky 3914 if (ap.encryptionRequested != encrypt) { 3915 ap.encryptionRequested = encrypt; 3916 saveSettingsLocked(userHandle); 3917 } 3918 3919 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 3920 // (2) Compute "max" for all admins 3921 boolean newRequested = false; 3922 final int N = policy.mAdminList.size(); 3923 for (int i = 0; i < N; i++) { 3924 newRequested |= policy.mAdminList.get(i).encryptionRequested; 3925 } 3926 3927 // Notify OS of new request 3928 setEncryptionRequested(newRequested); 3929 3930 // Return the new global request status 3931 return newRequested 3932 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3933 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3934 } 3935 } 3936 3937 /** 3938 * Get the current storage encryption request status for a given admin, or aggregate of all 3939 * active admins. 3940 */ 3941 @Override 3942 public boolean getStorageEncryption(ComponentName who, int userHandle) { 3943 if (!mHasFeature) { 3944 return false; 3945 } 3946 enforceCrossUserPermission(userHandle); 3947 synchronized (this) { 3948 // Check for permissions if a particular caller is specified 3949 if (who != null) { 3950 // When checking for a single caller, status is based on caller's request 3951 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 3952 return ap != null ? ap.encryptionRequested : false; 3953 } 3954 3955 // If no particular caller is specified, return the aggregate set of requests. 3956 // This is short circuited by returning true on the first hit. 3957 DevicePolicyData policy = getUserData(userHandle); 3958 final int N = policy.mAdminList.size(); 3959 for (int i = 0; i < N; i++) { 3960 if (policy.mAdminList.get(i).encryptionRequested) { 3961 return true; 3962 } 3963 } 3964 return false; 3965 } 3966 } 3967 3968 /** 3969 * Get the current encryption status of the device. 3970 */ 3971 @Override 3972 public int getStorageEncryptionStatus(int userHandle) { 3973 if (!mHasFeature) { 3974 // Ok to return current status. 3975 } 3976 enforceCrossUserPermission(userHandle); 3977 return getEncryptionStatus(); 3978 } 3979 3980 /** 3981 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 3982 */ 3983 private boolean isEncryptionSupported() { 3984 // Note, this can be implemented as 3985 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3986 // But is provided as a separate internal method if there's a faster way to do a 3987 // simple check for supported-or-not. 3988 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3989 } 3990 3991 /** 3992 * Hook to low-levels: Reporting the current status of encryption. 3993 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 3994 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 3995 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, or 3996 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 3997 */ 3998 private int getEncryptionStatus() { 3999 String status = systemPropertiesGet("ro.crypto.state", "unsupported"); 4000 if ("encrypted".equalsIgnoreCase(status)) { 4001 final long token = binderClearCallingIdentity(); 4002 try { 4003 return LockPatternUtils.isDeviceEncrypted() 4004 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4005 : DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 4006 } finally { 4007 binderRestoreCallingIdentity(token); 4008 } 4009 } else if ("unencrypted".equalsIgnoreCase(status)) { 4010 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4011 } else { 4012 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4013 } 4014 } 4015 4016 /** 4017 * Hook to low-levels: If needed, record the new admin setting for encryption. 4018 */ 4019 private void setEncryptionRequested(boolean encrypt) { 4020 } 4021 4022 4023 /** 4024 * Set whether the screen capture is disabled for the user managed by the specified admin. 4025 */ 4026 @Override 4027 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 4028 if (!mHasFeature) { 4029 return; 4030 } 4031 Preconditions.checkNotNull(who, "ComponentName is null"); 4032 final int userHandle = UserHandle.getCallingUserId(); 4033 synchronized (this) { 4034 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4035 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4036 if (ap.disableScreenCapture != disabled) { 4037 ap.disableScreenCapture = disabled; 4038 saveSettingsLocked(userHandle); 4039 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 4040 } 4041 } 4042 } 4043 4044 /** 4045 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 4046 * active admin (if given admin is null). 4047 */ 4048 @Override 4049 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 4050 if (!mHasFeature) { 4051 return false; 4052 } 4053 synchronized (this) { 4054 if (who != null) { 4055 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4056 return (admin != null) ? admin.disableScreenCapture : false; 4057 } 4058 4059 DevicePolicyData policy = getUserData(userHandle); 4060 final int N = policy.mAdminList.size(); 4061 for (int i = 0; i < N; i++) { 4062 ActiveAdmin admin = policy.mAdminList.get(i); 4063 if (admin.disableScreenCapture) { 4064 return true; 4065 } 4066 } 4067 return false; 4068 } 4069 } 4070 4071 private void updateScreenCaptureDisabledInWindowManager(int userHandle, boolean disabled) { 4072 long ident = binderClearCallingIdentity(); 4073 try { 4074 mIWindowManager.setScreenCaptureDisabled(userHandle, disabled); 4075 } catch (RemoteException e) { 4076 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 4077 } finally { 4078 binderRestoreCallingIdentity(ident); 4079 } 4080 } 4081 4082 /** 4083 * Set whether auto time is required by the specified admin (must be device owner). 4084 */ 4085 @Override 4086 public void setAutoTimeRequired(ComponentName who, boolean required) { 4087 if (!mHasFeature) { 4088 return; 4089 } 4090 Preconditions.checkNotNull(who, "ComponentName is null"); 4091 final int userHandle = UserHandle.getCallingUserId(); 4092 synchronized (this) { 4093 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4094 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4095 if (admin.requireAutoTime != required) { 4096 admin.requireAutoTime = required; 4097 saveSettingsLocked(userHandle); 4098 } 4099 } 4100 4101 // Turn AUTO_TIME on in settings if it is required 4102 if (required) { 4103 long ident = binderClearCallingIdentity(); 4104 try { 4105 Settings.Global.putInt(mContext.getContentResolver(), 4106 Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 4107 } finally { 4108 binderRestoreCallingIdentity(ident); 4109 } 4110 } 4111 } 4112 4113 /** 4114 * Returns whether or not auto time is required by the device owner. 4115 */ 4116 @Override 4117 public boolean getAutoTimeRequired() { 4118 if (!mHasFeature) { 4119 return false; 4120 } 4121 synchronized (this) { 4122 ActiveAdmin deviceOwner = getDeviceOwnerAdmin(); 4123 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 4124 } 4125 } 4126 4127 /** 4128 * The system property used to share the state of the camera. The native camera service 4129 * is expected to read this property and act accordingly. The userId should be appended 4130 * to this key. 4131 */ 4132 public static final String SYSTEM_PROP_DISABLE_CAMERA_PREFIX = "sys.secpolicy.camera.off_"; 4133 4134 /** 4135 * Disables all device cameras according to the specified admin. 4136 */ 4137 @Override 4138 public void setCameraDisabled(ComponentName who, boolean disabled) { 4139 if (!mHasFeature) { 4140 return; 4141 } 4142 Preconditions.checkNotNull(who, "ComponentName is null"); 4143 final int userHandle = UserHandle.getCallingUserId(); 4144 synchronized (this) { 4145 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4146 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 4147 if (ap.disableCamera != disabled) { 4148 ap.disableCamera = disabled; 4149 saveSettingsLocked(userHandle); 4150 } 4151 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 4152 } 4153 } 4154 4155 /** 4156 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 4157 * active admins. 4158 */ 4159 @Override 4160 public boolean getCameraDisabled(ComponentName who, int userHandle) { 4161 if (!mHasFeature) { 4162 return false; 4163 } 4164 synchronized (this) { 4165 if (who != null) { 4166 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4167 return (admin != null) ? admin.disableCamera : false; 4168 } 4169 4170 DevicePolicyData policy = getUserData(userHandle); 4171 // Determine whether or not the device camera is disabled for any active admins. 4172 final int N = policy.mAdminList.size(); 4173 for (int i = 0; i < N; i++) { 4174 ActiveAdmin admin = policy.mAdminList.get(i); 4175 if (admin.disableCamera) { 4176 return true; 4177 } 4178 } 4179 return false; 4180 } 4181 } 4182 4183 /** 4184 * Selectively disable keyguard features. 4185 */ 4186 @Override 4187 public void setKeyguardDisabledFeatures(ComponentName who, int which) { 4188 if (!mHasFeature) { 4189 return; 4190 } 4191 Preconditions.checkNotNull(who, "ComponentName is null"); 4192 final int userHandle = UserHandle.getCallingUserId(); 4193 if (isManagedProfile(userHandle)) { 4194 which = which & PROFILE_KEYGUARD_FEATURES; 4195 } 4196 synchronized (this) { 4197 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4198 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4199 if (ap.disabledKeyguardFeatures != which) { 4200 ap.disabledKeyguardFeatures = which; 4201 saveSettingsLocked(userHandle); 4202 } 4203 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 4204 } 4205 } 4206 4207 /** 4208 * Gets the disabled state for features in keyguard for the given admin, 4209 * or the aggregate of all active admins if who is null. 4210 */ 4211 @Override 4212 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 4213 if (!mHasFeature) { 4214 return 0; 4215 } 4216 enforceCrossUserPermission(userHandle); 4217 long ident = binderClearCallingIdentity(); 4218 try { 4219 synchronized (this) { 4220 if (who != null) { 4221 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4222 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 4223 } 4224 4225 UserInfo user = mUserManager.getUserInfo(userHandle); 4226 final List<UserInfo> profiles; 4227 if (user.isManagedProfile()) { 4228 // If we are being asked about a managed profile just return 4229 // keyguard features disabled by admins in the profile. 4230 profiles = new ArrayList<UserInfo>(1); 4231 profiles.add(user); 4232 } else { 4233 // Otherwise return those set by admins in the user 4234 // and its profiles. 4235 profiles = mUserManager.getProfiles(userHandle); 4236 } 4237 4238 // Determine which keyguard features are disabled by any active admin. 4239 int which = 0; 4240 for (UserInfo userInfo : profiles) { 4241 DevicePolicyData policy = getUserData(userInfo.id); 4242 final int N = policy.mAdminList.size(); 4243 for (int i = 0; i < N; i++) { 4244 ActiveAdmin admin = policy.mAdminList.get(i); 4245 if (userInfo.id == userHandle || !userInfo.isManagedProfile()) { 4246 // If we are being asked explictly about this user 4247 // return all disabled features even if its a managed profile. 4248 which |= admin.disabledKeyguardFeatures; 4249 } else { 4250 // Otherwise a managed profile is only allowed to disable 4251 // some features on the parent user. 4252 which |= (admin.disabledKeyguardFeatures 4253 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 4254 } 4255 } 4256 } 4257 return which; 4258 } 4259 } finally { 4260 binderRestoreCallingIdentity(ident); 4261 } 4262 } 4263 4264 @Override 4265 public boolean setDeviceOwner(String packageName, String ownerName, int userId) { 4266 if (!mHasFeature) { 4267 return false; 4268 } 4269 if (packageName == null 4270 || !Owners.isInstalledForUser(packageName, userId)) { 4271 throw new IllegalArgumentException("Invalid package name " + packageName 4272 + " for device owner"); 4273 } 4274 synchronized (this) { 4275 enforceCanSetDeviceOwner(userId); 4276 4277 // Shutting down backup manager service permanently. 4278 long ident = binderClearCallingIdentity(); 4279 try { 4280 IBackupManager ibm = IBackupManager.Stub.asInterface( 4281 ServiceManager.getService(Context.BACKUP_SERVICE)); 4282 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, false); 4283 } catch (RemoteException e) { 4284 throw new IllegalStateException("Failed deactivating backup service.", e); 4285 } finally { 4286 binderRestoreCallingIdentity(ident); 4287 } 4288 4289 mOwners.setDeviceOwner(packageName, ownerName, userId); 4290 mOwners.writeDeviceOwner(); 4291 updateDeviceOwnerLocked(); 4292 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 4293 4294 ident = binderClearCallingIdentity(); 4295 try { 4296 // TODO Send to system too? 4297 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 4298 } finally { 4299 binderRestoreCallingIdentity(ident); 4300 } 4301 return true; 4302 } 4303 } 4304 4305 @Override 4306 public boolean isDeviceOwner(String packageName) { 4307 if (!mHasFeature) { 4308 return false; 4309 } 4310 synchronized (this) { 4311 return mOwners.hasDeviceOwner() 4312 && mOwners.getDeviceOwnerPackageName().equals(packageName); 4313 } 4314 } 4315 4316 @Override 4317 public String getDeviceOwner() { 4318 if (!mHasFeature) { 4319 return null; 4320 } 4321 synchronized (this) { 4322 return mOwners.getDeviceOwnerPackageName(); 4323 } 4324 } 4325 4326 @Override 4327 public String getDeviceOwnerName() { 4328 if (!mHasFeature) { 4329 return null; 4330 } 4331 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4332 synchronized (this) { 4333 if (!mOwners.hasDeviceOwner()) { 4334 return null; 4335 } 4336 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 4337 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 4338 } 4339 } 4340 4341 // Returns the active device owner or null if there is no device owner. 4342 private ActiveAdmin getDeviceOwnerAdmin() { 4343 String deviceOwnerPackageName = getDeviceOwner(); 4344 if (deviceOwnerPackageName == null) { 4345 return null; 4346 } 4347 4348 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4349 final int n = policy.mAdminList.size(); 4350 for (int i = 0; i < n; i++) { 4351 ActiveAdmin admin = policy.mAdminList.get(i); 4352 if (deviceOwnerPackageName.equals(admin.info.getPackageName())) { 4353 return admin; 4354 } 4355 } 4356 return null; 4357 } 4358 4359 @Override 4360 public void clearDeviceOwner(String packageName) { 4361 Preconditions.checkNotNull(packageName, "packageName is null"); 4362 try { 4363 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 4364 if (uid != binderGetCallingUid()) { 4365 throw new SecurityException("Invalid packageName"); 4366 } 4367 } catch (NameNotFoundException e) { 4368 throw new SecurityException(e); 4369 } 4370 if (!isDeviceOwner(packageName)) { 4371 throw new SecurityException("clearDeviceOwner can only be called by the device owner"); 4372 } 4373 synchronized (this) { 4374 clearUserPoliciesLocked(new UserHandle(UserHandle.USER_SYSTEM)); 4375 4376 mOwners.clearDeviceOwner(); 4377 mOwners.writeDeviceOwner(); 4378 updateDeviceOwnerLocked(); 4379 // Reactivate backup service. 4380 long ident = binderClearCallingIdentity(); 4381 try { 4382 IBackupManager ibm = IBackupManager.Stub.asInterface( 4383 ServiceManager.getService(Context.BACKUP_SERVICE)); 4384 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, true); 4385 } catch (RemoteException e) { 4386 throw new IllegalStateException("Failed reactivating backup service.", e); 4387 } finally { 4388 binderRestoreCallingIdentity(ident); 4389 } 4390 } 4391 } 4392 4393 @Override 4394 public boolean setDeviceInitializer(ComponentName who, ComponentName initializer) { 4395 if (!mHasFeature) { 4396 return false; 4397 } 4398 if (initializer == null || 4399 !mOwners.hasDeviceOwner() || 4400 !Owners.isInstalledForUser(initializer.getPackageName(), 4401 mOwners.getDeviceOwnerUserId())) { 4402 throw new IllegalArgumentException("Invalid component name " + initializer 4403 + " for device initializer or no device owner set"); 4404 } 4405 boolean isInitializerSystemApp; 4406 try { 4407 isInitializerSystemApp = isSystemApp(getIPackageManager(), 4408 initializer.getPackageName(), binderGetCallingUserHandle().getIdentifier()); 4409 } catch (RemoteException | IllegalArgumentException e) { 4410 isInitializerSystemApp = false; 4411 Slog.e(LOG_TAG, "Fail to check if device initialzer is system app.", e); 4412 } 4413 if (!isInitializerSystemApp) { 4414 throw new IllegalArgumentException("Only system app can be set as device initializer."); 4415 } 4416 synchronized (this) { 4417 enforceCanSetDeviceInitializer(who); 4418 4419 if (mOwners.hasDeviceInitializer()) { 4420 throw new IllegalStateException( 4421 "Trying to set device initializer but device initializer is already set."); 4422 } 4423 4424 mOwners.setDeviceInitializer(initializer); 4425 4426 addDeviceInitializerToLockTaskPackagesLocked(mOwners.getDeviceOwnerUserId()); 4427 mOwners.writeDeviceOwner(); 4428 return true; 4429 } 4430 } 4431 4432 private void enforceCanSetDeviceInitializer(ComponentName who) { 4433 if (who == null) { 4434 mContext.enforceCallingOrSelfPermission( 4435 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 4436 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 4437 throw new IllegalStateException( 4438 "Trying to set device initializer but device is already provisioned."); 4439 } 4440 } else { 4441 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4442 } 4443 } 4444 4445 @Override 4446 public boolean isDeviceInitializer(String packageName) { 4447 if (!mHasFeature) { 4448 return false; 4449 } 4450 synchronized (this) { 4451 return mOwners.hasDeviceInitializer() 4452 && mOwners.getDeviceInitializerPackageName().equals(packageName); 4453 } 4454 } 4455 4456 @Override 4457 public String getDeviceInitializer() { 4458 if (!mHasFeature) { 4459 return null; 4460 } 4461 synchronized (this) { 4462 if (mOwners.hasDeviceInitializer()) { 4463 return mOwners.getDeviceInitializerPackageName(); 4464 } 4465 } 4466 return null; 4467 } 4468 4469 @Override 4470 public ComponentName getDeviceInitializerComponent() { 4471 if (!mHasFeature) { 4472 return null; 4473 } 4474 synchronized (this) { 4475 if (mOwners.hasDeviceInitializer()) { 4476 return mOwners.getDeviceInitializerComponent(); 4477 } 4478 } 4479 return null; 4480 } 4481 4482 @Override 4483 public void clearDeviceInitializer(ComponentName who) { 4484 if (!mHasFeature) { 4485 return; 4486 } 4487 Preconditions.checkNotNull(who, "ComponentName is null"); 4488 4489 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, UserHandle.getCallingUserId()); 4490 4491 if (admin.getUid() != binderGetCallingUid()) { 4492 throw new SecurityException("Admin " + who + " is not owned by uid " 4493 + binderGetCallingUid()); 4494 } 4495 4496 if (!isDeviceInitializer(admin.info.getPackageName()) 4497 && !isDeviceOwner(admin.info.getPackageName())) { 4498 throw new SecurityException( 4499 "clearDeviceInitializer can only be called by the device initializer/owner"); 4500 } 4501 synchronized (this) { 4502 long ident = binderClearCallingIdentity(); 4503 try { 4504 mOwners.clearDeviceInitializer(); 4505 mOwners.writeDeviceOwner(); 4506 } finally { 4507 binderRestoreCallingIdentity(ident); 4508 } 4509 } 4510 } 4511 4512 @Override 4513 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 4514 if (!mHasFeature) { 4515 return false; 4516 } 4517 if (who == null 4518 || !Owners.isInstalledForUser(who.getPackageName(), userHandle)) { 4519 throw new IllegalArgumentException("Component " + who 4520 + " not installed for userId:" + userHandle); 4521 } 4522 synchronized (this) { 4523 enforceCanSetProfileOwner(userHandle); 4524 mOwners.setProfileOwner(who, ownerName, userHandle); 4525 mOwners.writeProfileOwner(userHandle); 4526 return true; 4527 } 4528 } 4529 4530 @Override 4531 public void clearProfileOwner(ComponentName who) { 4532 if (!mHasFeature) { 4533 return; 4534 } 4535 UserHandle callingUser = binderGetCallingUserHandle(); 4536 // Check if this is the profile owner who is calling 4537 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4538 synchronized (this) { 4539 clearUserPoliciesLocked(callingUser); 4540 final int userId = callingUser.getIdentifier(); 4541 mOwners.removeProfileOwner(userId); 4542 mOwners.writeProfileOwner(userId); 4543 } 4544 } 4545 4546 private void clearUserPoliciesLocked(UserHandle userHandle) { 4547 int userId = userHandle.getIdentifier(); 4548 // Reset some of the user-specific policies 4549 DevicePolicyData policy = getUserData(userId); 4550 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 4551 policy.mDelegatedCertInstallerPackage = null; 4552 policy.mStatusBarDisabled = false; 4553 saveSettingsLocked(userId); 4554 4555 final long ident = binderClearCallingIdentity(); 4556 try { 4557 clearUserRestrictions(userHandle); 4558 getIPackageManager().updatePermissionFlagsForAllApps( 4559 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 4560 0 /* flagValues */, userHandle.getIdentifier()); 4561 } catch (RemoteException re) { 4562 } finally { 4563 binderRestoreCallingIdentity(ident); 4564 } 4565 } 4566 4567 4568 private void clearUserRestrictions(UserHandle userHandle) { 4569 Bundle userRestrictions = mUserManager.getUserRestrictions(); 4570 mUserManager.setUserRestrictions(new Bundle(), userHandle); 4571 IAudioService iAudioService = IAudioService.Stub.asInterface( 4572 ServiceManager.getService(Context.AUDIO_SERVICE)); 4573 if (userRestrictions.getBoolean(UserManager.DISALLOW_ADJUST_VOLUME)) { 4574 try { 4575 iAudioService.setMasterMute(true, 0, mContext.getPackageName(), 4576 userHandle.getIdentifier()); 4577 } catch (RemoteException e) { 4578 // Not much we can do here. 4579 } 4580 } 4581 if (userRestrictions.getBoolean(UserManager.DISALLOW_UNMUTE_MICROPHONE)) { 4582 try { 4583 iAudioService.setMicrophoneMute(true, mContext.getPackageName(), 4584 userHandle.getIdentifier()); 4585 } catch (RemoteException e) { 4586 // Not much we can do here. 4587 } 4588 } 4589 } 4590 4591 @Override 4592 public boolean hasUserSetupCompleted() { 4593 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 4594 } 4595 4596 private boolean hasUserSetupCompleted(int userHandle) { 4597 if (!mHasFeature) { 4598 return true; 4599 } 4600 DevicePolicyData policy = getUserData(userHandle); 4601 // If policy is null, return true, else check if the setup has completed. 4602 return policy == null || policy.mUserSetupComplete; 4603 } 4604 4605 @Override 4606 public boolean setUserEnabled(ComponentName who) { 4607 if (!mHasFeature) { 4608 return false; 4609 } 4610 synchronized (this) { 4611 if (who == null) { 4612 throw new NullPointerException("ComponentName is null"); 4613 } 4614 int userId = UserHandle.getCallingUserId(); 4615 4616 ActiveAdmin activeAdmin = 4617 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4618 if (!isDeviceInitializer(activeAdmin.info.getPackageName())) { 4619 throw new SecurityException( 4620 "This method can only be called by device initializers"); 4621 } 4622 4623 long id = binderClearCallingIdentity(); 4624 try { 4625 if (!isDeviceOwner(activeAdmin.info.getPackageName())) { 4626 IPackageManager ipm = getIPackageManager(); 4627 ipm.setComponentEnabledSetting(who, 4628 PackageManager.COMPONENT_ENABLED_STATE_DISABLED, 4629 PackageManager.DONT_KILL_APP, userId); 4630 4631 removeActiveAdmin(who, userId); 4632 } 4633 4634 if (userId == UserHandle.USER_SYSTEM) { 4635 Settings.Global.putInt(mContext.getContentResolver(), 4636 Settings.Global.DEVICE_PROVISIONED, 1); 4637 } 4638 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4639 Settings.Secure.USER_SETUP_COMPLETE, 1, userId); 4640 } catch (RemoteException e) { 4641 Log.i(LOG_TAG, "Can't talk to package manager", e); 4642 return false; 4643 } finally { 4644 binderRestoreCallingIdentity(id); 4645 } 4646 return true; 4647 } 4648 } 4649 4650 @Override 4651 public void setProfileEnabled(ComponentName who) { 4652 if (!mHasFeature) { 4653 return; 4654 } 4655 Preconditions.checkNotNull(who, "ComponentName is null"); 4656 final int userHandle = UserHandle.getCallingUserId(); 4657 synchronized (this) { 4658 // Check if this is the profile owner who is calling 4659 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4660 int userId = UserHandle.getCallingUserId(); 4661 4662 long id = binderClearCallingIdentity(); 4663 try { 4664 mUserManager.setUserEnabled(userId); 4665 UserInfo parent = mUserManager.getProfileParent(userId); 4666 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 4667 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 4668 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 4669 Intent.FLAG_RECEIVER_FOREGROUND); 4670 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 4671 } finally { 4672 binderRestoreCallingIdentity(id); 4673 } 4674 } 4675 } 4676 4677 @Override 4678 public void setProfileName(ComponentName who, String profileName) { 4679 Preconditions.checkNotNull(who, "ComponentName is null"); 4680 int userId = UserHandle.getCallingUserId(); 4681 // Check if this is the profile owner (includes device owner). 4682 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4683 4684 long id = binderClearCallingIdentity(); 4685 try { 4686 mUserManager.setUserName(userId, profileName); 4687 } finally { 4688 binderRestoreCallingIdentity(id); 4689 } 4690 } 4691 4692 @Override 4693 public ComponentName getProfileOwner(int userHandle) { 4694 if (!mHasFeature) { 4695 return null; 4696 } 4697 4698 synchronized (this) { 4699 return mOwners.getProfileOwnerComponent(userHandle); 4700 } 4701 } 4702 4703 // Returns the active profile owner for this user or null if the current user has no 4704 // profile owner. 4705 private ActiveAdmin getProfileOwnerAdmin(int userHandle) { 4706 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 4707 if (profileOwner == null) { 4708 return null; 4709 } 4710 DevicePolicyData policy = getUserData(userHandle); 4711 final int n = policy.mAdminList.size(); 4712 for (int i = 0; i < n; i++) { 4713 ActiveAdmin admin = policy.mAdminList.get(i); 4714 if (profileOwner.equals(admin.info.getComponent())) { 4715 return admin; 4716 } 4717 } 4718 return null; 4719 } 4720 4721 @Override 4722 public String getProfileOwnerName(int userHandle) { 4723 if (!mHasFeature) { 4724 return null; 4725 } 4726 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4727 ComponentName profileOwner = getProfileOwner(userHandle); 4728 if (profileOwner == null) { 4729 return null; 4730 } 4731 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 4732 } 4733 4734 /** 4735 * Canonical name for a given package. 4736 */ 4737 private String getApplicationLabel(String packageName, int userHandle) { 4738 long token = binderClearCallingIdentity(); 4739 try { 4740 final Context userContext; 4741 try { 4742 UserHandle handle = new UserHandle(userHandle); 4743 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 4744 } catch (PackageManager.NameNotFoundException nnfe) { 4745 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 4746 return null; 4747 } 4748 ApplicationInfo appInfo = userContext.getApplicationInfo(); 4749 CharSequence result = null; 4750 if (appInfo != null) { 4751 PackageManager pm = userContext.getPackageManager(); 4752 result = pm.getApplicationLabel(appInfo); 4753 } 4754 return result != null ? result.toString() : null; 4755 } finally { 4756 binderRestoreCallingIdentity(token); 4757 } 4758 } 4759 4760 /** 4761 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4762 * permission. 4763 * The profile owner can only be set before the user setup phase has completed, 4764 * except for: 4765 * - SYSTEM_UID 4766 * - adb if there are not accounts. 4767 */ 4768 private void enforceCanSetProfileOwner(int userHandle) { 4769 UserInfo info = mUserManager.getUserInfo(userHandle); 4770 if (info == null) { 4771 // User doesn't exist. 4772 throw new IllegalArgumentException( 4773 "Attempted to set profile owner for invalid userId: " + userHandle); 4774 } 4775 if (info.isGuest()) { 4776 throw new IllegalStateException("Cannot set a profile owner on a guest"); 4777 } 4778 if (getProfileOwner(userHandle) != null) { 4779 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 4780 + "is already set."); 4781 } 4782 int callingUid = binderGetCallingUid(); 4783 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 4784 if (hasUserSetupCompleted(userHandle) && 4785 AccountManager.get(mContext).getAccountsAsUser(userHandle).length > 0) { 4786 throw new IllegalStateException("Not allowed to set the profile owner because " 4787 + "there are already some accounts on the profile"); 4788 } 4789 return; 4790 } 4791 mContext.enforceCallingOrSelfPermission( 4792 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 4793 if (hasUserSetupCompleted(userHandle) 4794 && UserHandle.getAppId(callingUid) != Process.SYSTEM_UID) { 4795 throw new IllegalStateException("Cannot set the profile owner on a user which is " 4796 + "already set-up"); 4797 } 4798 } 4799 4800 /** 4801 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4802 * permission. 4803 * The device owner can only be set before the setup phase of the primary user has completed, 4804 * except for adb if no accounts or additional users are present on the device. 4805 */ 4806 private void enforceCanSetDeviceOwner(int userId) { 4807 if (mOwners.hasDeviceOwner()) { 4808 throw new IllegalStateException("Trying to set the device owner, but device owner " 4809 + "is already set."); 4810 } 4811 if (!mUserManager.isUserRunning(new UserHandle(userId))) { 4812 throw new IllegalStateException("User not running: " + userId); 4813 } 4814 4815 int callingUid = binderGetCallingUid(); 4816 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 4817 if (!hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 4818 return; 4819 } 4820 // STOPSHIP Do proper check in split user mode 4821 if (!UserManager.isSplitSystemUser()) { 4822 if (mUserManager.getUserCount() > 1) { 4823 throw new IllegalStateException( 4824 "Not allowed to set the device owner because there " 4825 + "are already several users on the device"); 4826 } 4827 if (AccountManager.get(mContext).getAccounts().length > 0) { 4828 throw new IllegalStateException( 4829 "Not allowed to set the device owner because there " 4830 + "are already some accounts on the device"); 4831 } 4832 } 4833 return; 4834 } 4835 // STOPSHIP check the caller UID with userId 4836 4837 mContext.enforceCallingOrSelfPermission( 4838 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 4839 // STOPSHIP Do proper check in split user mode 4840 if (!UserManager.isSplitSystemUser()) { 4841 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 4842 throw new IllegalStateException("Cannot set the device owner if the device is " 4843 + "already set-up"); 4844 } 4845 } 4846 } 4847 4848 private void enforceCrossUserPermission(int userHandle) { 4849 if (userHandle < 0) { 4850 throw new IllegalArgumentException("Invalid userId " + userHandle); 4851 } 4852 final int callingUid = binderGetCallingUid(); 4853 if (userHandle == UserHandle.getUserId(callingUid)) return; 4854 if (callingUid != Process.SYSTEM_UID && callingUid != 0) { 4855 mContext.enforceCallingOrSelfPermission( 4856 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 4857 + " INTERACT_ACROSS_USERS_FULL permission"); 4858 } 4859 } 4860 4861 private void enforceNotManagedProfile(int userHandle, String message) { 4862 if(isManagedProfile(userHandle)) { 4863 throw new SecurityException("You can not " + message + " for a managed profile. "); 4864 } 4865 } 4866 4867 private UserInfo getProfileParent(int userHandle) { 4868 long ident = binderClearCallingIdentity(); 4869 try { 4870 return mUserManager.getProfileParent(userHandle); 4871 } finally { 4872 binderRestoreCallingIdentity(ident); 4873 } 4874 } 4875 4876 private boolean isManagedProfile(int userHandle) { 4877 long ident = binderClearCallingIdentity(); 4878 try { 4879 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 4880 } finally { 4881 binderRestoreCallingIdentity(ident); 4882 } 4883 } 4884 4885 private void enableIfNecessary(String packageName, int userId) { 4886 try { 4887 IPackageManager ipm = getIPackageManager(); 4888 ApplicationInfo ai = ipm.getApplicationInfo(packageName, 4889 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 4890 userId); 4891 if (ai.enabledSetting 4892 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 4893 ipm.setApplicationEnabledSetting(packageName, 4894 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 4895 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 4896 } 4897 } catch (RemoteException e) { 4898 } 4899 } 4900 4901 @Override 4902 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 4903 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 4904 != PackageManager.PERMISSION_GRANTED) { 4905 4906 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 4907 + binderGetCallingPid() 4908 + ", uid=" + binderGetCallingUid()); 4909 return; 4910 } 4911 4912 final Printer p = new PrintWriterPrinter(pw); 4913 4914 synchronized (this) { 4915 p.println("Current Device Policy Manager state:"); 4916 mOwners.dump(" ", pw); 4917 int userCount = mUserData.size(); 4918 for (int u = 0; u < userCount; u++) { 4919 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 4920 p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 4921 final int N = policy.mAdminList.size(); 4922 for (int i=0; i<N; i++) { 4923 ActiveAdmin ap = policy.mAdminList.get(i); 4924 if (ap != null) { 4925 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 4926 pw.println(":"); 4927 ap.dump(" ", pw); 4928 } 4929 } 4930 if (!policy.mRemovingAdmins.isEmpty()) { 4931 p.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 4932 + policy.mRemovingAdmins); 4933 } 4934 4935 pw.println(" "); 4936 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 4937 } 4938 } 4939 } 4940 4941 @Override 4942 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 4943 ComponentName activity) { 4944 Preconditions.checkNotNull(who, "ComponentName is null"); 4945 final int userHandle = UserHandle.getCallingUserId(); 4946 synchronized (this) { 4947 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4948 4949 IPackageManager pm = getIPackageManager(); 4950 long id = binderClearCallingIdentity(); 4951 try { 4952 pm.addPersistentPreferredActivity(filter, activity, userHandle); 4953 } catch (RemoteException re) { 4954 // Shouldn't happen 4955 } finally { 4956 binderRestoreCallingIdentity(id); 4957 } 4958 } 4959 } 4960 4961 @Override 4962 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 4963 Preconditions.checkNotNull(who, "ComponentName is null"); 4964 final int userHandle = UserHandle.getCallingUserId(); 4965 synchronized (this) { 4966 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4967 4968 IPackageManager pm = getIPackageManager(); 4969 long id = binderClearCallingIdentity(); 4970 try { 4971 pm.clearPackagePersistentPreferredActivities(packageName, userHandle); 4972 } catch (RemoteException re) { 4973 // Shouldn't happen 4974 } finally { 4975 binderRestoreCallingIdentity(id); 4976 } 4977 } 4978 } 4979 4980 @Override 4981 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 4982 Preconditions.checkNotNull(who, "ComponentName is null"); 4983 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4984 synchronized (this) { 4985 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4986 4987 long id = binderClearCallingIdentity(); 4988 try { 4989 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 4990 } finally { 4991 binderRestoreCallingIdentity(id); 4992 } 4993 } 4994 } 4995 4996 @Override 4997 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 4998 PersistableBundle args) { 4999 if (!mHasFeature) { 5000 return; 5001 } 5002 Preconditions.checkNotNull(admin, "admin is null"); 5003 Preconditions.checkNotNull(agent, "agent is null"); 5004 final int userHandle = UserHandle.getCallingUserId(); 5005 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 5006 synchronized (this) { 5007 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 5008 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 5009 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 5010 saveSettingsLocked(userHandle); 5011 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 5012 } 5013 } 5014 5015 @Override 5016 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 5017 ComponentName agent, int userHandle) { 5018 if (!mHasFeature) { 5019 return null; 5020 } 5021 Preconditions.checkNotNull(agent, "agent null"); 5022 enforceCrossUserPermission(userHandle); 5023 5024 synchronized (this) { 5025 final String componentName = agent.flattenToString(); 5026 if (admin != null) { 5027 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 5028 if (ap == null) return null; 5029 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 5030 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 5031 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 5032 result.add(trustAgentInfo.options); 5033 return result; 5034 } 5035 5036 // Return strictest policy for this user and profiles that are visible from this user. 5037 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 5038 List<PersistableBundle> result = null; 5039 5040 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 5041 // of the options. If any admin doesn't have options, discard options for the rest 5042 // and return null. 5043 boolean allAdminsHaveOptions = true; 5044 for (UserInfo userInfo : profiles) { 5045 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 5046 final int N = policy.mAdminList.size(); 5047 for (int i=0; i < N; i++) { 5048 final ActiveAdmin active = policy.mAdminList.get(i); 5049 final boolean disablesTrust = (active.disabledKeyguardFeatures 5050 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 5051 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 5052 if (info != null && info.options != null && !info.options.isEmpty()) { 5053 if (disablesTrust) { 5054 if (result == null) { 5055 result = new ArrayList<PersistableBundle>(); 5056 } 5057 result.add(info.options); 5058 } else { 5059 Log.w(LOG_TAG, "Ignoring admin " + active.info 5060 + " because it has trust options but doesn't declare " 5061 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 5062 } 5063 } else if (disablesTrust) { 5064 allAdminsHaveOptions = false; 5065 break; 5066 } 5067 } 5068 } 5069 return allAdminsHaveOptions ? result : null; 5070 } 5071 } 5072 5073 @Override 5074 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 5075 Preconditions.checkNotNull(who, "ComponentName is null"); 5076 synchronized (this) { 5077 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5078 5079 int userHandle = UserHandle.getCallingUserId(); 5080 DevicePolicyData userData = getUserData(userHandle); 5081 userData.mRestrictionsProvider = permissionProvider; 5082 saveSettingsLocked(userHandle); 5083 } 5084 } 5085 5086 @Override 5087 public ComponentName getRestrictionsProvider(int userHandle) { 5088 synchronized (this) { 5089 if (binderGetCallingUid() != Process.SYSTEM_UID) { 5090 throw new SecurityException("Only the system can query the permission provider"); 5091 } 5092 DevicePolicyData userData = getUserData(userHandle); 5093 return userData != null ? userData.mRestrictionsProvider : null; 5094 } 5095 } 5096 5097 @Override 5098 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 5099 Preconditions.checkNotNull(who, "ComponentName is null"); 5100 int callingUserId = UserHandle.getCallingUserId(); 5101 synchronized (this) { 5102 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5103 5104 IPackageManager pm = getIPackageManager(); 5105 long id = binderClearCallingIdentity(); 5106 try { 5107 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5108 if (parent == null) { 5109 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 5110 + "parent"); 5111 return; 5112 } 5113 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 5114 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), callingUserId, 5115 parent.id, 0); 5116 } 5117 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 5118 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), 5119 parent.id, callingUserId, 0); 5120 } 5121 } catch (RemoteException re) { 5122 // Shouldn't happen 5123 } finally { 5124 binderRestoreCallingIdentity(id); 5125 } 5126 } 5127 } 5128 5129 @Override 5130 public void clearCrossProfileIntentFilters(ComponentName who) { 5131 Preconditions.checkNotNull(who, "ComponentName is null"); 5132 int callingUserId = UserHandle.getCallingUserId(); 5133 synchronized (this) { 5134 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5135 IPackageManager pm = getIPackageManager(); 5136 long id = binderClearCallingIdentity(); 5137 try { 5138 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5139 if (parent == null) { 5140 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 5141 + "parent"); 5142 return; 5143 } 5144 // Removing those that go from the managed profile to the parent. 5145 pm.clearCrossProfileIntentFilters(callingUserId, who.getPackageName()); 5146 // And those that go from the parent to the managed profile. 5147 // If we want to support multiple managed profiles, we will have to only remove 5148 // those that have callingUserId as their target. 5149 pm.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 5150 } catch (RemoteException re) { 5151 // Shouldn't happen 5152 } finally { 5153 binderRestoreCallingIdentity(id); 5154 } 5155 } 5156 } 5157 5158 /** 5159 * @return true if all packages in enabledPackages are either in the list 5160 * permittedList or are a system app. 5161 */ 5162 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 5163 List<String> permittedList) { 5164 int userIdToCheck = UserHandle.getCallingUserId(); 5165 long id = binderClearCallingIdentity(); 5166 try { 5167 // If we have an enabled packages list for a managed profile the packages 5168 // we should check are installed for the parent user. 5169 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 5170 if (user.isManagedProfile()) { 5171 userIdToCheck = user.profileGroupId; 5172 } 5173 5174 IPackageManager pm = getIPackageManager(); 5175 for (String enabledPackage : enabledPackages) { 5176 boolean systemService = false; 5177 try { 5178 ApplicationInfo applicationInfo = pm.getApplicationInfo(enabledPackage, 5179 PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 5180 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5181 } catch (RemoteException e) { 5182 Log.i(LOG_TAG, "Can't talk to package managed", e); 5183 } 5184 if (!systemService && !permittedList.contains(enabledPackage)) { 5185 return false; 5186 } 5187 } 5188 } finally { 5189 binderRestoreCallingIdentity(id); 5190 } 5191 return true; 5192 } 5193 5194 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 5195 // Not using AccessibilityManager.getInstance because that guesses 5196 // at the user you require based on callingUid and caches for a given 5197 // process. 5198 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 5199 IAccessibilityManager service = iBinder == null 5200 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 5201 return new AccessibilityManager(mContext, service, userId); 5202 } 5203 5204 @Override 5205 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 5206 if (!mHasFeature) { 5207 return false; 5208 } 5209 Preconditions.checkNotNull(who, "ComponentName is null"); 5210 5211 if (packageList != null) { 5212 int userId = UserHandle.getCallingUserId(); 5213 List<AccessibilityServiceInfo> enabledServices = null; 5214 long id = binderClearCallingIdentity(); 5215 try { 5216 UserInfo user = mUserManager.getUserInfo(userId); 5217 if (user.isManagedProfile()) { 5218 userId = user.profileGroupId; 5219 } 5220 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 5221 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 5222 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 5223 } finally { 5224 binderRestoreCallingIdentity(id); 5225 } 5226 5227 if (enabledServices != null) { 5228 List<String> enabledPackages = new ArrayList<String>(); 5229 for (AccessibilityServiceInfo service : enabledServices) { 5230 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 5231 } 5232 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5233 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 5234 + "because it contains already enabled accesibility services."); 5235 return false; 5236 } 5237 } 5238 } 5239 5240 synchronized (this) { 5241 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5242 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5243 admin.permittedAccessiblityServices = packageList; 5244 saveSettingsLocked(UserHandle.getCallingUserId()); 5245 } 5246 return true; 5247 } 5248 5249 @Override 5250 public List getPermittedAccessibilityServices(ComponentName who) { 5251 if (!mHasFeature) { 5252 return null; 5253 } 5254 Preconditions.checkNotNull(who, "ComponentName is null"); 5255 5256 synchronized (this) { 5257 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5258 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5259 return admin.permittedAccessiblityServices; 5260 } 5261 } 5262 5263 @Override 5264 public List getPermittedAccessibilityServicesForUser(int userId) { 5265 if (!mHasFeature) { 5266 return null; 5267 } 5268 synchronized (this) { 5269 List<String> result = null; 5270 // If we have multiple profiles we return the intersection of the 5271 // permitted lists. This can happen in cases where we have a device 5272 // and profile owner. 5273 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5274 final int PROFILES_SIZE = profiles.size(); 5275 for (int i = 0; i < PROFILES_SIZE; ++i) { 5276 // Just loop though all admins, only device or profiles 5277 // owners can have permitted lists set. 5278 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5279 final int N = policy.mAdminList.size(); 5280 for (int j = 0; j < N; j++) { 5281 ActiveAdmin admin = policy.mAdminList.get(j); 5282 List<String> fromAdmin = admin.permittedAccessiblityServices; 5283 if (fromAdmin != null) { 5284 if (result == null) { 5285 result = new ArrayList<String>(fromAdmin); 5286 } else { 5287 result.retainAll(fromAdmin); 5288 } 5289 } 5290 } 5291 } 5292 5293 // If we have a permitted list add all system accessibility services. 5294 if (result != null) { 5295 long id = binderClearCallingIdentity(); 5296 try { 5297 UserInfo user = mUserManager.getUserInfo(userId); 5298 if (user.isManagedProfile()) { 5299 userId = user.profileGroupId; 5300 } 5301 AccessibilityManager accessibilityManager = 5302 getAccessibilityManagerForUser(userId); 5303 List<AccessibilityServiceInfo> installedServices = 5304 accessibilityManager.getInstalledAccessibilityServiceList(); 5305 5306 IPackageManager pm = getIPackageManager(); 5307 if (installedServices != null) { 5308 for (AccessibilityServiceInfo service : installedServices) { 5309 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 5310 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5311 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5312 result.add(serviceInfo.packageName); 5313 } 5314 } 5315 } 5316 } finally { 5317 binderRestoreCallingIdentity(id); 5318 } 5319 } 5320 5321 return result; 5322 } 5323 } 5324 5325 private boolean checkCallerIsCurrentUserOrProfile() { 5326 int callingUserId = UserHandle.getCallingUserId(); 5327 long token = binderClearCallingIdentity(); 5328 try { 5329 UserInfo currentUser; 5330 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 5331 try { 5332 currentUser = getIActivityManager().getCurrentUser(); 5333 } catch (RemoteException e) { 5334 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 5335 return false; 5336 } 5337 5338 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 5339 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 5340 + "of a user that isn't the foreground user."); 5341 return false; 5342 } 5343 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 5344 Slog.e(LOG_TAG, "Cannot set permitted input methods " 5345 + "of a user that isn't the foreground user."); 5346 return false; 5347 } 5348 } finally { 5349 binderRestoreCallingIdentity(token); 5350 } 5351 return true; 5352 } 5353 5354 @Override 5355 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 5356 if (!mHasFeature) { 5357 return false; 5358 } 5359 Preconditions.checkNotNull(who, "ComponentName is null"); 5360 5361 // TODO When InputMethodManager supports per user calls remove 5362 // this restriction. 5363 if (!checkCallerIsCurrentUserOrProfile()) { 5364 return false; 5365 } 5366 5367 if (packageList != null) { 5368 // InputMethodManager fetches input methods for current user. 5369 // So this can only be set when calling user is the current user 5370 // or parent is current user in case of managed profiles. 5371 InputMethodManager inputMethodManager = (InputMethodManager) mContext 5372 .getSystemService(Context.INPUT_METHOD_SERVICE); 5373 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 5374 5375 if (enabledImes != null) { 5376 List<String> enabledPackages = new ArrayList<String>(); 5377 for (InputMethodInfo ime : enabledImes) { 5378 enabledPackages.add(ime.getPackageName()); 5379 } 5380 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5381 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 5382 + "because it contains already enabled input method."); 5383 return false; 5384 } 5385 } 5386 } 5387 5388 synchronized (this) { 5389 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5390 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5391 admin.permittedInputMethods = packageList; 5392 saveSettingsLocked(UserHandle.getCallingUserId()); 5393 } 5394 return true; 5395 } 5396 5397 @Override 5398 public List getPermittedInputMethods(ComponentName who) { 5399 if (!mHasFeature) { 5400 return null; 5401 } 5402 Preconditions.checkNotNull(who, "ComponentName is null"); 5403 5404 synchronized (this) { 5405 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5406 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5407 return admin.permittedInputMethods; 5408 } 5409 } 5410 5411 @Override 5412 public List getPermittedInputMethodsForCurrentUser() { 5413 UserInfo currentUser; 5414 try { 5415 currentUser = getIActivityManager().getCurrentUser(); 5416 } catch (RemoteException e) { 5417 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 5418 // Activity managed is dead, just allow all IMEs 5419 return null; 5420 } 5421 5422 int userId = currentUser.id; 5423 synchronized (this) { 5424 List<String> result = null; 5425 // If we have multiple profiles we return the intersection of the 5426 // permitted lists. This can happen in cases where we have a device 5427 // and profile owner. 5428 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5429 final int PROFILES_SIZE = profiles.size(); 5430 for (int i = 0; i < PROFILES_SIZE; ++i) { 5431 // Just loop though all admins, only device or profiles 5432 // owners can have permitted lists set. 5433 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5434 final int N = policy.mAdminList.size(); 5435 for (int j = 0; j < N; j++) { 5436 ActiveAdmin admin = policy.mAdminList.get(j); 5437 List<String> fromAdmin = admin.permittedInputMethods; 5438 if (fromAdmin != null) { 5439 if (result == null) { 5440 result = new ArrayList<String>(fromAdmin); 5441 } else { 5442 result.retainAll(fromAdmin); 5443 } 5444 } 5445 } 5446 } 5447 5448 // If we have a permitted list add all system input methods. 5449 if (result != null) { 5450 InputMethodManager inputMethodManager = (InputMethodManager) mContext 5451 .getSystemService(Context.INPUT_METHOD_SERVICE); 5452 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 5453 long id = binderClearCallingIdentity(); 5454 try { 5455 IPackageManager pm = getIPackageManager(); 5456 if (imes != null) { 5457 for (InputMethodInfo ime : imes) { 5458 ServiceInfo serviceInfo = ime.getServiceInfo(); 5459 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5460 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5461 result.add(serviceInfo.packageName); 5462 } 5463 } 5464 } 5465 } finally { 5466 binderRestoreCallingIdentity(id); 5467 } 5468 } 5469 return result; 5470 } 5471 } 5472 5473 @Override 5474 public UserHandle createUser(ComponentName who, String name) { 5475 Preconditions.checkNotNull(who, "ComponentName is null"); 5476 synchronized (this) { 5477 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5478 5479 long id = binderClearCallingIdentity(); 5480 try { 5481 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 5482 if (userInfo != null) { 5483 return userInfo.getUserHandle(); 5484 } 5485 return null; 5486 } finally { 5487 binderRestoreCallingIdentity(id); 5488 } 5489 } 5490 } 5491 5492 @Override 5493 public UserHandle createAndInitializeUser(ComponentName who, String name, 5494 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 5495 UserHandle user = createUser(who, name); 5496 if (user == null) { 5497 return null; 5498 } 5499 long id = binderClearCallingIdentity(); 5500 try { 5501 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 5502 final IPackageManager ipm = getIPackageManager(); 5503 IActivityManager activityManager = getIActivityManager(); 5504 5505 final int userHandle = user.getIdentifier(); 5506 try { 5507 // Install the profile owner if not present. 5508 if (!ipm.isPackageAvailable(profileOwnerPkg, userHandle)) { 5509 ipm.installExistingPackageAsUser(profileOwnerPkg, userHandle); 5510 } 5511 5512 // Start user in background. 5513 activityManager.startUserInBackground(userHandle); 5514 } catch (RemoteException e) { 5515 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 5516 } 5517 5518 setActiveAdmin(profileOwnerComponent, true, userHandle, adminExtras); 5519 setProfileOwner(profileOwnerComponent, ownerName, userHandle); 5520 return user; 5521 } finally { 5522 binderRestoreCallingIdentity(id); 5523 } 5524 } 5525 5526 @Override 5527 public boolean removeUser(ComponentName who, UserHandle userHandle) { 5528 Preconditions.checkNotNull(who, "ComponentName is null"); 5529 synchronized (this) { 5530 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5531 5532 long id = binderClearCallingIdentity(); 5533 try { 5534 return mUserManager.removeUser(userHandle.getIdentifier()); 5535 } finally { 5536 binderRestoreCallingIdentity(id); 5537 } 5538 } 5539 } 5540 5541 @Override 5542 public boolean switchUser(ComponentName who, UserHandle userHandle) { 5543 Preconditions.checkNotNull(who, "ComponentName is null"); 5544 synchronized (this) { 5545 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5546 5547 long id = binderClearCallingIdentity(); 5548 try { 5549 int userId = UserHandle.USER_SYSTEM; 5550 if (userHandle != null) { 5551 userId = userHandle.getIdentifier(); 5552 } 5553 return getIActivityManager().switchUser(userId); 5554 } catch (RemoteException e) { 5555 Log.e(LOG_TAG, "Couldn't switch user", e); 5556 return false; 5557 } finally { 5558 binderRestoreCallingIdentity(id); 5559 } 5560 } 5561 } 5562 5563 @Override 5564 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 5565 Preconditions.checkNotNull(who, "ComponentName is null"); 5566 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5567 5568 synchronized (this) { 5569 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5570 5571 long id = binderClearCallingIdentity(); 5572 try { 5573 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 5574 // if no restrictions were saved, mUserManager.getApplicationRestrictions 5575 // returns null, but DPM method should return an empty Bundle as per JavaDoc 5576 return bundle != null ? bundle : Bundle.EMPTY; 5577 } finally { 5578 binderRestoreCallingIdentity(id); 5579 } 5580 } 5581 } 5582 5583 @Override 5584 public void setUserRestriction(ComponentName who, String key, boolean enabled) { 5585 Preconditions.checkNotNull(who, "ComponentName is null"); 5586 final int userHandle = UserHandle.getCallingUserId(); 5587 final UserHandle user = new UserHandle(userHandle); 5588 synchronized (this) { 5589 ActiveAdmin activeAdmin = 5590 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5591 boolean isDeviceOwner = isDeviceOwner(activeAdmin.info.getPackageName()); 5592 if (!isDeviceOwner && userHandle != UserHandle.USER_SYSTEM 5593 && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) { 5594 throw new SecurityException("Profile owners cannot set user restriction " + key); 5595 } 5596 if (IMMUTABLE_USER_RESTRICTIONS.contains(key)) { 5597 throw new SecurityException("User restriction " + key + " cannot be changed"); 5598 } 5599 boolean alreadyRestricted = mUserManager.hasUserRestriction(key, user); 5600 5601 IAudioService iAudioService = null; 5602 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key) 5603 || UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 5604 iAudioService = IAudioService.Stub.asInterface( 5605 ServiceManager.getService(Context.AUDIO_SERVICE)); 5606 } 5607 5608 long id = binderClearCallingIdentity(); 5609 try { 5610 if (enabled && !alreadyRestricted) { 5611 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 5612 iAudioService.setMicrophoneMute(true, mContext.getPackageName(), 5613 userHandle); 5614 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 5615 iAudioService.setMasterMute(true, 0, mContext.getPackageName(), 5616 userHandle); 5617 } else if (UserManager.DISALLOW_CONFIG_WIFI.equals(key)) { 5618 Settings.Secure.putIntForUser(mContext.getContentResolver(), 5619 Settings.Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON, 0, 5620 userHandle); 5621 } else if (UserManager.DISALLOW_SHARE_LOCATION.equals(key)) { 5622 Settings.Secure.putIntForUser(mContext.getContentResolver(), 5623 Settings.Secure.LOCATION_MODE, Settings.Secure.LOCATION_MODE_OFF, 5624 userHandle); 5625 Settings.Secure.putStringForUser(mContext.getContentResolver(), 5626 Settings.Secure.LOCATION_PROVIDERS_ALLOWED, "", 5627 userHandle); 5628 } else if (UserManager.DISALLOW_DEBUGGING_FEATURES.equals(key)) { 5629 // Only disable adb if changing for system user, since it is global 5630 // TODO: should this be admin user? 5631 if (userHandle == UserHandle.USER_SYSTEM) { 5632 Settings.Global.putStringForUser(mContext.getContentResolver(), 5633 Settings.Global.ADB_ENABLED, "0", userHandle); 5634 } 5635 } else if (UserManager.ENSURE_VERIFY_APPS.equals(key)) { 5636 Settings.Global.putStringForUser(mContext.getContentResolver(), 5637 Settings.Global.PACKAGE_VERIFIER_ENABLE, "1", 5638 userHandle); 5639 Settings.Global.putStringForUser(mContext.getContentResolver(), 5640 Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, "1", 5641 userHandle); 5642 } else if (UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES.equals(key)) { 5643 Settings.Secure.putIntForUser(mContext.getContentResolver(), 5644 Settings.Secure.INSTALL_NON_MARKET_APPS, 0, 5645 userHandle); 5646 } 5647 } 5648 mUserManager.setUserRestriction(key, enabled, user); 5649 if (enabled != alreadyRestricted) { 5650 if (UserManager.DISALLOW_SHARE_LOCATION.equals(key)) { 5651 // Send out notifications however as some clients may want to reread the 5652 // value which actually changed due to a restriction having been applied. 5653 final String property = Settings.Secure.SYS_PROP_SETTING_VERSION; 5654 long version = systemPropertiesGetLong(property, 0) + 1; 5655 systemPropertiesSet(property, Long.toString(version)); 5656 5657 final String name = Settings.Secure.LOCATION_PROVIDERS_ALLOWED; 5658 Uri url = Uri.withAppendedPath(Settings.Secure.CONTENT_URI, name); 5659 mContext.getContentResolver().notifyChange(url, null, true, userHandle); 5660 } 5661 } 5662 if (!enabled && alreadyRestricted) { 5663 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 5664 iAudioService.setMicrophoneMute(false, mContext.getPackageName(), 5665 userHandle); 5666 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 5667 iAudioService.setMasterMute(false, 0, mContext.getPackageName(), 5668 userHandle); 5669 } 5670 } 5671 } catch (RemoteException re) { 5672 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 5673 } finally { 5674 binderRestoreCallingIdentity(id); 5675 } 5676 sendChangedNotification(userHandle); 5677 } 5678 } 5679 5680 @Override 5681 public boolean setApplicationHidden(ComponentName who, String packageName, 5682 boolean hidden) { 5683 Preconditions.checkNotNull(who, "ComponentName is null"); 5684 int callingUserId = UserHandle.getCallingUserId(); 5685 synchronized (this) { 5686 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5687 5688 long id = binderClearCallingIdentity(); 5689 try { 5690 IPackageManager pm = getIPackageManager(); 5691 return pm.setApplicationHiddenSettingAsUser(packageName, hidden, callingUserId); 5692 } catch (RemoteException re) { 5693 // shouldn't happen 5694 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 5695 } finally { 5696 binderRestoreCallingIdentity(id); 5697 } 5698 return false; 5699 } 5700 } 5701 5702 @Override 5703 public boolean isApplicationHidden(ComponentName who, String packageName) { 5704 Preconditions.checkNotNull(who, "ComponentName is null"); 5705 int callingUserId = UserHandle.getCallingUserId(); 5706 synchronized (this) { 5707 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5708 5709 long id = binderClearCallingIdentity(); 5710 try { 5711 IPackageManager pm = getIPackageManager(); 5712 return pm.getApplicationHiddenSettingAsUser(packageName, callingUserId); 5713 } catch (RemoteException re) { 5714 // shouldn't happen 5715 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 5716 } finally { 5717 binderRestoreCallingIdentity(id); 5718 } 5719 return false; 5720 } 5721 } 5722 5723 @Override 5724 public void enableSystemApp(ComponentName who, String packageName) { 5725 Preconditions.checkNotNull(who, "ComponentName is null"); 5726 synchronized (this) { 5727 // This API can only be called by an active device admin, 5728 // so try to retrieve it to check that the caller is one. 5729 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5730 5731 int userId = UserHandle.getCallingUserId(); 5732 long id = binderClearCallingIdentity(); 5733 5734 try { 5735 if (DBG) { 5736 Slog.v(LOG_TAG, "installing " + packageName + " for " 5737 + userId); 5738 } 5739 5740 UserManager um = UserManager.get(mContext); 5741 UserInfo primaryUser = um.getProfileParent(userId); 5742 5743 // Call did not come from a managed profile 5744 if (primaryUser == null) { 5745 primaryUser = um.getUserInfo(userId); 5746 } 5747 5748 IPackageManager pm = getIPackageManager(); 5749 if (!isSystemApp(pm, packageName, primaryUser.id)) { 5750 throw new IllegalArgumentException("Only system apps can be enabled this way."); 5751 } 5752 5753 // Install the app. 5754 pm.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 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 = 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 IPackageManager pm = getIPackageManager(); 5786 List<ResolveInfo> activitiesToEnable = pm.queryIntentActivities(intent, 5787 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 5788 0, // no flags 5789 primaryUser.id); 5790 5791 if (DBG) Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 5792 int numberOfAppsInstalled = 0; 5793 if (activitiesToEnable != null) { 5794 for (ResolveInfo info : activitiesToEnable) { 5795 if (info.activityInfo != null) { 5796 String packageName = info.activityInfo.packageName; 5797 if (isSystemApp(pm, packageName, primaryUser.id)) { 5798 numberOfAppsInstalled++; 5799 pm.installExistingPackageAsUser(packageName, userId); 5800 } else { 5801 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 5802 + " system app"); 5803 } 5804 } 5805 } 5806 } 5807 return numberOfAppsInstalled; 5808 } catch (RemoteException e) { 5809 // shouldn't happen 5810 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 5811 return 0; 5812 } finally { 5813 binderRestoreCallingIdentity(id); 5814 } 5815 } 5816 } 5817 5818 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 5819 throws RemoteException { 5820 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 5821 userId); 5822 if (appInfo == null) { 5823 throw new IllegalArgumentException("The application " + packageName + 5824 " is not present on this device"); 5825 } 5826 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5827 } 5828 5829 @Override 5830 public void setAccountManagementDisabled(ComponentName who, String accountType, 5831 boolean disabled) { 5832 if (!mHasFeature) { 5833 return; 5834 } 5835 Preconditions.checkNotNull(who, "ComponentName is null"); 5836 synchronized (this) { 5837 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5838 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5839 if (disabled) { 5840 ap.accountTypesWithManagementDisabled.add(accountType); 5841 } else { 5842 ap.accountTypesWithManagementDisabled.remove(accountType); 5843 } 5844 saveSettingsLocked(UserHandle.getCallingUserId()); 5845 } 5846 } 5847 5848 @Override 5849 public String[] getAccountTypesWithManagementDisabled() { 5850 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 5851 } 5852 5853 @Override 5854 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 5855 enforceCrossUserPermission(userId); 5856 if (!mHasFeature) { 5857 return null; 5858 } 5859 synchronized (this) { 5860 DevicePolicyData policy = getUserData(userId); 5861 final int N = policy.mAdminList.size(); 5862 ArraySet<String> resultSet = new ArraySet<>(); 5863 for (int i = 0; i < N; i++) { 5864 ActiveAdmin admin = policy.mAdminList.get(i); 5865 resultSet.addAll(admin.accountTypesWithManagementDisabled); 5866 } 5867 return resultSet.toArray(new String[resultSet.size()]); 5868 } 5869 } 5870 5871 @Override 5872 public void setUninstallBlocked(ComponentName who, String packageName, 5873 boolean uninstallBlocked) { 5874 Preconditions.checkNotNull(who, "ComponentName is null"); 5875 final int userId = UserHandle.getCallingUserId(); 5876 synchronized (this) { 5877 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5878 5879 long id = binderClearCallingIdentity(); 5880 try { 5881 IPackageManager pm = getIPackageManager(); 5882 pm.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 5883 } catch (RemoteException re) { 5884 // Shouldn't happen. 5885 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 5886 } finally { 5887 binderRestoreCallingIdentity(id); 5888 } 5889 } 5890 } 5891 5892 @Override 5893 public boolean isUninstallBlocked(ComponentName who, String packageName) { 5894 // This function should return true if and only if the package is blocked by 5895 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 5896 // when the package is a system app, or when it is an active device admin. 5897 final int userId = UserHandle.getCallingUserId(); 5898 5899 synchronized (this) { 5900 if (who != null) { 5901 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5902 } 5903 5904 long id = binderClearCallingIdentity(); 5905 try { 5906 IPackageManager pm = getIPackageManager(); 5907 return pm.getBlockUninstallForUser(packageName, userId); 5908 } catch (RemoteException re) { 5909 // Shouldn't happen. 5910 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 5911 } finally { 5912 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 = getProfileOwnerAdmin(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 = 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 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 = getProfileOwnerAdmin(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 = 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 = 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 = 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 (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.getPackageName()); 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 final ContentResolver contentResolver = mContext.getContentResolver(); 6149 Preconditions.checkNotNull(who, "ComponentName is null"); 6150 6151 synchronized (this) { 6152 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6153 6154 // Some settings are no supported any more. However we do not want to throw a 6155 // SecurityException to avoid breaking apps. 6156 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 6157 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 6158 return; 6159 } 6160 6161 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 6162 throw new SecurityException(String.format( 6163 "Permission denial: device owners cannot update %1$s", setting)); 6164 } 6165 6166 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 6167 // ignore if it contradicts an existing policy 6168 long timeMs = getMaximumTimeToLock(who, UserHandle.getCallingUserId()); 6169 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 6170 return; 6171 } 6172 } 6173 6174 long id = binderClearCallingIdentity(); 6175 try { 6176 Settings.Global.putString(contentResolver, setting, value); 6177 } finally { 6178 binderRestoreCallingIdentity(id); 6179 } 6180 } 6181 } 6182 6183 @Override 6184 public void setSecureSetting(ComponentName who, String setting, String value) { 6185 Preconditions.checkNotNull(who, "ComponentName is null"); 6186 int callingUserId = UserHandle.getCallingUserId(); 6187 final ContentResolver contentResolver = mContext.getContentResolver(); 6188 6189 synchronized (this) { 6190 ActiveAdmin activeAdmin = 6191 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6192 6193 if (isDeviceOwner(activeAdmin.info.getPackageName())) { 6194 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 6195 throw new SecurityException(String.format( 6196 "Permission denial: Device owners cannot update %1$s", setting)); 6197 } 6198 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 6199 throw new SecurityException(String.format( 6200 "Permission denial: Profile owners cannot update %1$s", setting)); 6201 } 6202 6203 long id = binderClearCallingIdentity(); 6204 try { 6205 Settings.Secure.putStringForUser(contentResolver, setting, value, callingUserId); 6206 } finally { 6207 binderRestoreCallingIdentity(id); 6208 } 6209 } 6210 } 6211 6212 @Override 6213 public void setMasterVolumeMuted(ComponentName who, boolean on) { 6214 Preconditions.checkNotNull(who, "ComponentName is null"); 6215 synchronized (this) { 6216 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6217 int userId = UserHandle.getCallingUserId(); 6218 long identity = binderClearCallingIdentity(); 6219 try { 6220 IAudioService iAudioService = IAudioService.Stub.asInterface( 6221 ServiceManager.getService(Context.AUDIO_SERVICE)); 6222 iAudioService.setMasterMute(on, 0, mContext.getPackageName(), userId); 6223 } catch (RemoteException re) { 6224 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 6225 } finally { 6226 binderRestoreCallingIdentity(identity); 6227 } 6228 } 6229 } 6230 6231 @Override 6232 public boolean isMasterVolumeMuted(ComponentName who) { 6233 Preconditions.checkNotNull(who, "ComponentName is null"); 6234 synchronized (this) { 6235 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6236 6237 AudioManager audioManager = 6238 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 6239 return audioManager.isMasterMute(); 6240 } 6241 } 6242 6243 @Override 6244 public void setUserIcon(ComponentName who, Bitmap icon) { 6245 synchronized (this) { 6246 Preconditions.checkNotNull(who, "ComponentName is null"); 6247 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6248 6249 int userId = UserHandle.getCallingUserId(); 6250 long id = binderClearCallingIdentity(); 6251 try { 6252 mUserManager.setUserIcon(userId, icon); 6253 } finally { 6254 binderRestoreCallingIdentity(id); 6255 } 6256 } 6257 } 6258 6259 @Override 6260 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 6261 Preconditions.checkNotNull(who, "ComponentName is null"); 6262 synchronized (this) { 6263 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6264 } 6265 final int userId = UserHandle.getCallingUserId(); 6266 LockPatternUtils utils = new LockPatternUtils(mContext); 6267 6268 long ident = binderClearCallingIdentity(); 6269 try { 6270 // disallow disabling the keyguard if a password is currently set 6271 if (disabled && utils.isSecure(userId)) { 6272 return false; 6273 } 6274 utils.setLockScreenDisabled(disabled, userId); 6275 } finally { 6276 binderRestoreCallingIdentity(ident); 6277 } 6278 return true; 6279 } 6280 6281 @Override 6282 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 6283 int userId = UserHandle.getCallingUserId(); 6284 synchronized (this) { 6285 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6286 DevicePolicyData policy = getUserData(userId); 6287 if (policy.mStatusBarDisabled != disabled) { 6288 if (!setStatusBarDisabledInternal(disabled, userId)) { 6289 return false; 6290 } 6291 policy.mStatusBarDisabled = disabled; 6292 saveSettingsLocked(userId); 6293 } 6294 } 6295 return true; 6296 } 6297 6298 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 6299 long ident = binderClearCallingIdentity(); 6300 try { 6301 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 6302 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 6303 if (statusBarService != null) { 6304 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 6305 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 6306 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 6307 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 6308 return true; 6309 } 6310 } catch (RemoteException e) { 6311 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 6312 } finally { 6313 binderRestoreCallingIdentity(ident); 6314 } 6315 return false; 6316 } 6317 6318 /** 6319 * We need to update the internal state of whether a user has completed setup once. After 6320 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 6321 * as we don't trust any apps that might try to reset it. 6322 * <p> 6323 * Unfortunately, we don't know which user's setup state was changed, so we write all of 6324 * them. 6325 */ 6326 void updateUserSetupComplete() { 6327 List<UserInfo> users = mUserManager.getUsers(true); 6328 ContentResolver resolver = mContext.getContentResolver(); 6329 final int N = users.size(); 6330 for (int i = 0; i < N; i++) { 6331 int userHandle = users.get(i).id; 6332 if (Settings.Secure.getIntForUser(resolver, Settings.Secure.USER_SETUP_COMPLETE, 0, 6333 userHandle) != 0) { 6334 DevicePolicyData policy = getUserData(userHandle); 6335 if (!policy.mUserSetupComplete) { 6336 policy.mUserSetupComplete = true; 6337 synchronized (this) { 6338 // The DeviceInitializer was whitelisted but now should be removed. 6339 removeDeviceInitializerFromLockTaskPackages(userHandle); 6340 saveSettingsLocked(userHandle); 6341 } 6342 } 6343 } 6344 } 6345 } 6346 6347 private void addDeviceInitializerToLockTaskPackagesLocked(int userHandle) { 6348 if (hasUserSetupCompleted(userHandle)) { 6349 return; 6350 } 6351 6352 final String deviceInitializerPackage = getDeviceInitializer(); 6353 if (deviceInitializerPackage == null) { 6354 return; 6355 } 6356 6357 final List<String> packages = getLockTaskPackagesLocked(userHandle); 6358 if (!packages.contains(deviceInitializerPackage)) { 6359 packages.add(deviceInitializerPackage); 6360 setLockTaskPackagesLocked(userHandle, packages); 6361 } 6362 } 6363 6364 private void removeDeviceInitializerFromLockTaskPackages(int userHandle) { 6365 final String deviceInitializerPackage = getDeviceInitializer(); 6366 if (deviceInitializerPackage == null) { 6367 return; 6368 } 6369 6370 List<String> packages = getLockTaskPackagesLocked(userHandle); 6371 if (packages.remove(deviceInitializerPackage)) { 6372 setLockTaskPackagesLocked(userHandle, packages); 6373 } 6374 } 6375 6376 private class SetupContentObserver extends ContentObserver { 6377 6378 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 6379 Settings.Secure.USER_SETUP_COMPLETE); 6380 6381 public SetupContentObserver(Handler handler) { 6382 super(handler); 6383 } 6384 6385 void register(ContentResolver resolver) { 6386 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 6387 } 6388 6389 @Override 6390 public void onChange(boolean selfChange, Uri uri) { 6391 if (mUserSetupComplete.equals(uri)) { 6392 updateUserSetupComplete(); 6393 } 6394 } 6395 } 6396 6397 private final class LocalService extends DevicePolicyManagerInternal { 6398 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 6399 6400 @Override 6401 public List<String> getCrossProfileWidgetProviders(int profileId) { 6402 synchronized (DevicePolicyManagerService.this) { 6403 if (mOwners == null) { 6404 return Collections.emptyList(); 6405 } 6406 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 6407 if (ownerComponent == null) { 6408 return Collections.emptyList(); 6409 } 6410 6411 DevicePolicyData policy = getUserDataUnchecked(profileId); 6412 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 6413 6414 if (admin == null || admin.crossProfileWidgetProviders == null 6415 || admin.crossProfileWidgetProviders.isEmpty()) { 6416 return Collections.emptyList(); 6417 } 6418 6419 return admin.crossProfileWidgetProviders; 6420 } 6421 } 6422 6423 @Override 6424 public void addOnCrossProfileWidgetProvidersChangeListener( 6425 OnCrossProfileWidgetProvidersChangeListener listener) { 6426 synchronized (DevicePolicyManagerService.this) { 6427 if (mWidgetProviderListeners == null) { 6428 mWidgetProviderListeners = new ArrayList<>(); 6429 } 6430 if (!mWidgetProviderListeners.contains(listener)) { 6431 mWidgetProviderListeners.add(listener); 6432 } 6433 } 6434 } 6435 6436 @Override 6437 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 6438 final int userId = UserHandle.getUserId(uid); 6439 synchronized(DevicePolicyManagerService.this) { 6440 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 6441 } 6442 } 6443 6444 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 6445 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 6446 synchronized (DevicePolicyManagerService.this) { 6447 listeners = new ArrayList<>(mWidgetProviderListeners); 6448 } 6449 final int listenerCount = listeners.size(); 6450 for (int i = 0; i < listenerCount; i++) { 6451 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 6452 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 6453 } 6454 } 6455 } 6456 6457 /** 6458 * Returns true if specified admin is allowed to limit passwords and has a 6459 * {@code passwordQuality} of at least {@code minPasswordQuality} 6460 */ 6461 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 6462 if (admin.passwordQuality < minPasswordQuality) { 6463 return false; 6464 } 6465 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 6466 } 6467 6468 @Override 6469 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 6470 if (policy != null && !policy.isValid()) { 6471 throw new IllegalArgumentException("Invalid system update policy."); 6472 } 6473 synchronized (this) { 6474 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6475 if (policy == null) { 6476 mOwners.clearSystemUpdatePolicy(); 6477 } else { 6478 mOwners.setSystemUpdatePolicy(policy); 6479 } 6480 mOwners.writeDeviceOwner(); 6481 } 6482 mContext.sendBroadcastAsUser( 6483 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 6484 UserHandle.SYSTEM); 6485 } 6486 6487 @Override 6488 public SystemUpdatePolicy getSystemUpdatePolicy() { 6489 synchronized (this) { 6490 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 6491 if (policy != null && !policy.isValid()) { 6492 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 6493 return null; 6494 } 6495 return policy; 6496 } 6497 } 6498 6499 /** 6500 * Checks if the caller of the method is the device owner app or device initialization app. 6501 * 6502 * @param callerUid UID of the caller. 6503 * @return true if the caller is the device owner app or device initializer. 6504 */ 6505 private boolean isCallerDeviceOwnerOrInitializer(int callerUid) { 6506 String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 6507 for (String pkg : pkgs) { 6508 if (isDeviceOwner(pkg) || isDeviceInitializer(pkg)) { 6509 return true; 6510 } 6511 } 6512 return false; 6513 } 6514 6515 @Override 6516 public void notifyPendingSystemUpdate(long updateReceivedTime) { 6517 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 6518 "Only the system update service can broadcast update information"); 6519 6520 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 6521 Slog.w(LOG_TAG, "Only the system update service in the system user " + 6522 "can broadcast update information."); 6523 return; 6524 } 6525 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 6526 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 6527 updateReceivedTime); 6528 6529 synchronized (this) { 6530 String deviceOwnerPackage = getDeviceOwner(); 6531 if (deviceOwnerPackage == null) { 6532 return; 6533 } 6534 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 6535 6536 ActivityInfo[] receivers = null; 6537 try { 6538 receivers = mContext.getPackageManager().getPackageInfo( 6539 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 6540 } catch (NameNotFoundException e) { 6541 Log.e(LOG_TAG, "Cannot find device owner package", e); 6542 } 6543 if (receivers != null) { 6544 long ident = binderClearCallingIdentity(); 6545 try { 6546 for (int i = 0; i < receivers.length; i++) { 6547 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 6548 intent.setComponent(new ComponentName(deviceOwnerPackage, 6549 receivers[i].name)); 6550 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 6551 } 6552 } 6553 } finally { 6554 binderRestoreCallingIdentity(ident); 6555 } 6556 } 6557 } 6558 } 6559 6560 @Override 6561 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 6562 int userId = UserHandle.getCallingUserId(); 6563 synchronized (this) { 6564 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6565 DevicePolicyData userPolicy = getUserData(userId); 6566 if (userPolicy.mPermissionPolicy != policy) { 6567 userPolicy.mPermissionPolicy = policy; 6568 saveSettingsLocked(userId); 6569 } 6570 } 6571 } 6572 6573 @Override 6574 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 6575 int userId = UserHandle.getCallingUserId(); 6576 synchronized (this) { 6577 DevicePolicyData userPolicy = getUserData(userId); 6578 return userPolicy.mPermissionPolicy; 6579 } 6580 } 6581 6582 @Override 6583 public boolean setPermissionGrantState(ComponentName admin, String packageName, 6584 String permission, int grantState) throws RemoteException { 6585 UserHandle user = binderGetCallingUserHandle(); 6586 synchronized (this) { 6587 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6588 long ident = binderClearCallingIdentity(); 6589 try { 6590 final ApplicationInfo ai = getIPackageManager() 6591 .getApplicationInfo(packageName, 0, user.getIdentifier()); 6592 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 6593 if (targetSdkVersion < android.os.Build.VERSION_CODES.M) { 6594 return false; 6595 } 6596 final PackageManager packageManager = mContext.getPackageManager(); 6597 switch (grantState) { 6598 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 6599 packageManager.grantRuntimePermission(packageName, permission, user); 6600 packageManager.updatePermissionFlags(permission, packageName, 6601 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6602 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6603 } break; 6604 6605 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 6606 packageManager.revokeRuntimePermission(packageName, 6607 permission, user); 6608 packageManager.updatePermissionFlags(permission, packageName, 6609 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6610 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6611 } break; 6612 6613 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 6614 packageManager.updatePermissionFlags(permission, packageName, 6615 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 6616 } break; 6617 } 6618 return true; 6619 } catch (SecurityException se) { 6620 return false; 6621 } finally { 6622 binderRestoreCallingIdentity(ident); 6623 } 6624 } 6625 } 6626 6627 @Override 6628 public int getPermissionGrantState(ComponentName admin, String packageName, 6629 String permission) throws RemoteException { 6630 PackageManager packageManager = mContext.getPackageManager(); 6631 6632 UserHandle user = binderGetCallingUserHandle(); 6633 synchronized (this) { 6634 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6635 long ident = binderClearCallingIdentity(); 6636 try { 6637 int granted = getIPackageManager().checkPermission(permission, 6638 packageName, user.getIdentifier()); 6639 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 6640 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 6641 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 6642 // Not controlled by policy 6643 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 6644 } else { 6645 // Policy controlled so return result based on permission grant state 6646 return granted == PackageManager.PERMISSION_GRANTED 6647 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 6648 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 6649 } 6650 } finally { 6651 binderRestoreCallingIdentity(ident); 6652 } 6653 } 6654 } 6655} 6656