DevicePolicyManagerService.java revision 4f16073556f7978708fb71c87628cfe1692412d5
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.devicepolicy; 18 19import com.google.android.collect.Sets; 20 21import static android.Manifest.permission.MANAGE_CA_CERTIFICATES; 22import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 23import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 24import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 25import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES; 26import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 27import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 28import static org.xmlpull.v1.XmlPullParser.END_TAG; 29import static org.xmlpull.v1.XmlPullParser.TEXT; 30 31import android.Manifest.permission; 32import android.accessibilityservice.AccessibilityServiceInfo; 33import android.accounts.AccountManager; 34import android.annotation.NonNull; 35import android.app.Activity; 36import android.app.ActivityManagerNative; 37import android.app.AlarmManager; 38import android.app.AppGlobals; 39import android.app.IActivityManager; 40import android.app.Notification; 41import android.app.NotificationManager; 42import android.app.PendingIntent; 43import android.app.StatusBarManager; 44import android.app.admin.DeviceAdminInfo; 45import android.app.admin.DeviceAdminReceiver; 46import android.app.admin.DevicePolicyManager; 47import android.app.admin.DevicePolicyManagerInternal; 48import android.app.admin.IDevicePolicyManager; 49import android.app.admin.SystemUpdatePolicy; 50import android.app.backup.IBackupManager; 51import android.content.BroadcastReceiver; 52import android.content.ComponentName; 53import android.content.ContentResolver; 54import android.content.Context; 55import android.content.Intent; 56import android.content.IntentFilter; 57import android.content.pm.ActivityInfo; 58import android.content.pm.ApplicationInfo; 59import android.content.pm.IPackageManager; 60import android.content.pm.PackageInfo; 61import android.content.pm.PackageManager; 62import android.content.pm.PackageManager.NameNotFoundException; 63import android.content.pm.ResolveInfo; 64import android.content.pm.ServiceInfo; 65import android.content.pm.UserInfo; 66import android.database.ContentObserver; 67import android.graphics.Bitmap; 68import android.media.AudioManager; 69import android.media.IAudioService; 70import android.net.ConnectivityManager; 71import android.net.ProxyInfo; 72import android.net.Uri; 73import android.os.AsyncTask; 74import android.os.Binder; 75import android.os.Bundle; 76import android.os.Environment; 77import android.os.FileUtils; 78import android.os.Handler; 79import android.os.IBinder; 80import android.os.Looper; 81import android.os.PersistableBundle; 82import android.os.PowerManager; 83import android.os.PowerManagerInternal; 84import android.os.Process; 85import android.os.RecoverySystem; 86import android.os.RemoteCallback; 87import android.os.RemoteException; 88import android.os.ServiceManager; 89import android.os.SystemClock; 90import android.os.SystemProperties; 91import android.os.UserHandle; 92import android.os.UserManager; 93import android.os.UserManagerInternal; 94import android.os.storage.StorageManager; 95import android.provider.ContactsContract.QuickContact; 96import android.provider.ContactsInternal; 97import android.provider.Settings; 98import android.security.Credentials; 99import android.security.IKeyChainAliasCallback; 100import android.security.IKeyChainService; 101import android.security.KeyChain; 102import android.security.KeyChain.KeyChainConnection; 103import android.service.persistentdata.PersistentDataBlockManager; 104import android.text.TextUtils; 105import android.util.ArrayMap; 106import android.util.ArraySet; 107import android.util.Log; 108import android.util.PrintWriterPrinter; 109import android.util.Printer; 110import android.util.Slog; 111import android.util.SparseArray; 112import android.util.Xml; 113import android.view.IWindowManager; 114import android.view.accessibility.AccessibilityManager; 115import android.view.accessibility.IAccessibilityManager; 116import android.view.inputmethod.InputMethodInfo; 117import android.view.inputmethod.InputMethodManager; 118 119import com.android.internal.R; 120import com.android.internal.annotations.VisibleForTesting; 121import com.android.internal.statusbar.IStatusBarService; 122import com.android.internal.util.FastXmlSerializer; 123import com.android.internal.util.JournaledFile; 124import com.android.internal.util.Preconditions; 125import com.android.internal.util.XmlUtils; 126import com.android.internal.widget.LockPatternUtils; 127import com.android.server.LocalServices; 128import com.android.server.SystemService; 129import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 130import com.android.server.pm.UserRestrictionsUtils; 131 132import org.xmlpull.v1.XmlPullParser; 133import org.xmlpull.v1.XmlPullParserException; 134import org.xmlpull.v1.XmlSerializer; 135 136import java.io.ByteArrayInputStream; 137import java.io.File; 138import java.io.FileDescriptor; 139import java.io.FileInputStream; 140import java.io.FileNotFoundException; 141import java.io.FileOutputStream; 142import java.io.IOException; 143import java.io.PrintWriter; 144import java.nio.charset.StandardCharsets; 145import java.security.cert.CertificateException; 146import java.security.cert.CertificateFactory; 147import java.security.cert.X509Certificate; 148import java.text.DateFormat; 149import java.util.ArrayList; 150import java.util.Arrays; 151import java.util.Collections; 152import java.util.Date; 153import java.util.List; 154import java.util.Map.Entry; 155import java.util.Set; 156 157/** 158 * Implementation of the device policy APIs. 159 */ 160public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 161 162 private static final String LOG_TAG = "DevicePolicyManagerService"; 163 164 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 165 166 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 167 168 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 169 170 private static final String TAG_STATUS_BAR = "statusbar"; 171 172 private static final String ATTR_DISABLED = "disabled"; 173 174 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 175 "do-not-ask-credentials-on-boot"; 176 177 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 178 179 private static final long MS_PER_DAY = 86400 * 1000; 180 181 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 182 183 protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 184 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 185 186 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 187 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 188 189 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 190 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 191 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 192 193 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 194 195 private static final int STATUS_BAR_DISABLE_MASK = 196 StatusBarManager.DISABLE_EXPAND | 197 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 198 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 199 StatusBarManager.DISABLE_SEARCH; 200 201 private static final int STATUS_BAR_DISABLE2_MASK = 202 StatusBarManager.DISABLE2_QUICK_SETTINGS; 203 204 private static final Set<String> DEVICE_OWNER_USER_RESTRICTIONS; 205 static { 206 DEVICE_OWNER_USER_RESTRICTIONS = new ArraySet<>(); 207 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_USB_FILE_TRANSFER); 208 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_TETHERING); 209 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_NETWORK_RESET); 210 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_FACTORY_RESET); 211 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADD_USER); 212 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_CELL_BROADCASTS); 213 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS); 214 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_MOUNT_PHYSICAL_MEDIA); 215 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_UNMUTE_MICROPHONE); 216 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADJUST_VOLUME); 217 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SMS); 218 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_FUN); 219 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SAFE_BOOT); 220 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CREATE_WINDOWS); 221 } 222 223 // The following user restrictions cannot be changed by any active admin, including device 224 // owner and profile owner. 225 private static final Set<String> IMMUTABLE_USER_RESTRICTIONS; 226 static { 227 IMMUTABLE_USER_RESTRICTIONS = new ArraySet<>(); 228 IMMUTABLE_USER_RESTRICTIONS.add(UserManager.DISALLOW_WALLPAPER); 229 } 230 231 private static final Set<String> SECURE_SETTINGS_WHITELIST; 232 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 233 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 234 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 235 static { 236 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 237 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 238 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 239 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 240 241 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 242 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 243 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 244 245 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 246 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 247 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 248 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 249 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 250 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 251 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 252 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 253 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 254 255 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 256 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 257 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 258 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 259 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 260 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 261 } 262 263 // Keyguard features that when set of a profile will affect the profiles 264 // parent user. 265 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 266 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 267 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 268 269 // Keyguard features that are allowed to be set on a managed profile 270 private static final int PROFILE_KEYGUARD_FEATURES = 271 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER 272 | DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 273 274 final Context mContext; 275 final Injector mInjector; 276 final IPackageManager mIPackageManager; 277 final UserManager mUserManager; 278 final UserManagerInternal mUserManagerInternal; 279 280 final LocalService mLocalService; 281 282 // Stores and loads state on device and profile owners. 283 @VisibleForTesting 284 final Owners mOwners; 285 286 private final Binder mToken = new Binder(); 287 288 /** 289 * Whether or not device admin feature is supported. If it isn't return defaults for all 290 * public methods. 291 */ 292 private boolean mHasFeature; 293 294 public static final class Lifecycle extends SystemService { 295 private DevicePolicyManagerService mService; 296 297 public Lifecycle(Context context) { 298 super(context); 299 mService = new DevicePolicyManagerService(context); 300 } 301 302 @Override 303 public void onStart() { 304 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 305 } 306 307 @Override 308 public void onBootPhase(int phase) { 309 mService.systemReady(phase); 310 } 311 } 312 313 public static class DevicePolicyData { 314 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 315 int mActivePasswordLength = 0; 316 int mActivePasswordUpperCase = 0; 317 int mActivePasswordLowerCase = 0; 318 int mActivePasswordLetters = 0; 319 int mActivePasswordNumeric = 0; 320 int mActivePasswordSymbols = 0; 321 int mActivePasswordNonLetter = 0; 322 int mFailedPasswordAttempts = 0; 323 324 int mUserHandle; 325 int mPasswordOwner = -1; 326 long mLastMaximumTimeToLock = -1; 327 boolean mUserSetupComplete = false; 328 int mPermissionPolicy; 329 330 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 331 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 332 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 333 334 // This is the list of component allowed to start lock task mode. 335 List<String> mLockTaskPackages = new ArrayList<>(); 336 337 boolean mStatusBarDisabled = false; 338 339 ComponentName mRestrictionsProvider; 340 341 String mDelegatedCertInstallerPackage; 342 343 boolean doNotAskCredentialsOnBoot = false; 344 345 public DevicePolicyData(int userHandle) { 346 mUserHandle = userHandle; 347 } 348 } 349 350 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 351 352 final Handler mHandler; 353 354 BroadcastReceiver mReceiver = new BroadcastReceiver() { 355 @Override 356 public void onReceive(Context context, Intent intent) { 357 final String action = intent.getAction(); 358 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 359 getSendingUserId()); 360 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 361 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 362 if (VERBOSE_LOG) { 363 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 364 + action + " for user " + userHandle); 365 } 366 mHandler.post(new Runnable() { 367 @Override 368 public void run() { 369 handlePasswordExpirationNotification(userHandle); 370 } 371 }); 372 } 373 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 374 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 375 new MonitoringCertNotificationTask().execute(intent); 376 } 377 if (Intent.ACTION_USER_REMOVED.equals(action)) { 378 removeUserData(userHandle); 379 } else if (Intent.ACTION_USER_STARTED.equals(action) 380 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 381 382 if (Intent.ACTION_USER_STARTED.equals(action)) { 383 // Reset the policy data 384 synchronized (DevicePolicyManagerService.this) { 385 mUserData.remove(userHandle); 386 } 387 } 388 handlePackagesChanged(null /* check all admins */, userHandle); 389 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 390 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 391 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 392 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 393 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 394 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 395 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 396 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 397 clearWipeProfileNotification(); 398 } 399 } 400 }; 401 402 static class ActiveAdmin { 403 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 404 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 405 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 406 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 407 = "disable-bt-contacts-sharing"; 408 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 409 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 410 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 411 private static final String TAG_ACCOUNT_TYPE = "account-type"; 412 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 413 = "permitted-accessiblity-services"; 414 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 415 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 416 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 417 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 418 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 419 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 420 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 421 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 422 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 423 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 424 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 425 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 426 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 427 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 428 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 429 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 430 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 431 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 432 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 433 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 434 private static final String ATTR_VALUE = "value"; 435 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 436 private static final String TAG_POLICIES = "policies"; 437 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 438 "cross-profile-widget-providers"; 439 private static final String TAG_PROVIDER = "provider"; 440 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 441 442 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 443 444 final DeviceAdminInfo info; 445 446 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 447 448 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 449 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 450 451 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 452 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 453 454 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 455 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 456 457 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 458 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 459 460 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 461 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 462 463 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 464 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 465 466 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 467 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 468 469 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 470 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 471 472 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 473 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 474 475 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 476 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 477 478 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 479 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 480 481 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 482 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 483 484 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 485 486 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 487 488 boolean encryptionRequested = false; 489 boolean disableCamera = false; 490 boolean disableCallerId = false; 491 boolean disableBluetoothContactSharing = true; 492 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 493 boolean requireAutoTime = false; // Can only be set by a device owner. 494 495 static class TrustAgentInfo { 496 public PersistableBundle options; 497 TrustAgentInfo(PersistableBundle bundle) { 498 options = bundle; 499 } 500 } 501 502 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 503 504 // The list of permitted accessibility services package namesas set by a profile 505 // or device owner. Null means all accessibility services are allowed, empty means 506 // none except system services are allowed. 507 List<String> permittedAccessiblityServices; 508 509 // The list of permitted input methods package names as set by a profile or device owner. 510 // Null means all input methods are allowed, empty means none except system imes are 511 // allowed. 512 List<String> permittedInputMethods; 513 514 // TODO: review implementation decisions with frameworks team 515 boolean specifiesGlobalProxy = false; 516 String globalProxySpec = null; 517 String globalProxyExclusionList = null; 518 519 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 520 521 List<String> crossProfileWidgetProviders; 522 523 Bundle userRestrictions; 524 525 ActiveAdmin(DeviceAdminInfo _info) { 526 info = _info; 527 } 528 529 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 530 531 public UserHandle getUserHandle() { 532 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 533 } 534 535 void writeToXml(XmlSerializer out) 536 throws IllegalArgumentException, IllegalStateException, IOException { 537 out.startTag(null, TAG_POLICIES); 538 info.writePoliciesToXml(out); 539 out.endTag(null, TAG_POLICIES); 540 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 541 out.startTag(null, TAG_PASSWORD_QUALITY); 542 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 543 out.endTag(null, TAG_PASSWORD_QUALITY); 544 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 545 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 546 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 547 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 548 } 549 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 550 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 551 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 552 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 553 } 554 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 555 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 556 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 557 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 558 } 559 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 560 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 561 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 562 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 563 } 564 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 565 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 566 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 567 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 568 } 569 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 570 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 571 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 572 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 573 } 574 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 575 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 576 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 577 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 578 } 579 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 580 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 581 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 582 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 583 } 584 } 585 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 586 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 587 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 588 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 589 } 590 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 591 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 592 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 593 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 594 } 595 if (specifiesGlobalProxy) { 596 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 597 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 598 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 599 if (globalProxySpec != null) { 600 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 601 out.attribute(null, ATTR_VALUE, globalProxySpec); 602 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 603 } 604 if (globalProxyExclusionList != null) { 605 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 606 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 607 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 608 } 609 } 610 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 611 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 612 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 613 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 614 } 615 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 616 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 617 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 618 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 619 } 620 if (encryptionRequested) { 621 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 622 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 623 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 624 } 625 if (disableCamera) { 626 out.startTag(null, TAG_DISABLE_CAMERA); 627 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 628 out.endTag(null, TAG_DISABLE_CAMERA); 629 } 630 if (disableCallerId) { 631 out.startTag(null, TAG_DISABLE_CALLER_ID); 632 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 633 out.endTag(null, TAG_DISABLE_CALLER_ID); 634 } 635 if (disableBluetoothContactSharing) { 636 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 637 out.attribute(null, ATTR_VALUE, 638 Boolean.toString(disableBluetoothContactSharing)); 639 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 640 } 641 if (disableScreenCapture) { 642 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 643 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 644 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 645 } 646 if (requireAutoTime) { 647 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 648 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 649 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 650 } 651 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 652 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 653 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 654 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 655 } 656 if (!accountTypesWithManagementDisabled.isEmpty()) { 657 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 658 for (String ac : accountTypesWithManagementDisabled) { 659 out.startTag(null, TAG_ACCOUNT_TYPE); 660 out.attribute(null, ATTR_VALUE, ac); 661 out.endTag(null, TAG_ACCOUNT_TYPE); 662 } 663 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 664 } 665 if (!trustAgentInfos.isEmpty()) { 666 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 667 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 668 for (Entry<String, TrustAgentInfo> entry : set) { 669 TrustAgentInfo trustAgentInfo = entry.getValue(); 670 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 671 out.attribute(null, ATTR_VALUE, entry.getKey()); 672 if (trustAgentInfo.options != null) { 673 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 674 try { 675 trustAgentInfo.options.saveToXml(out); 676 } catch (XmlPullParserException e) { 677 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 678 } 679 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 680 } 681 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 682 } 683 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 684 } 685 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 686 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 687 final int providerCount = crossProfileWidgetProviders.size(); 688 for (int i = 0; i < providerCount; i++) { 689 String provider = crossProfileWidgetProviders.get(i); 690 out.startTag(null, TAG_PROVIDER); 691 out.attribute(null, ATTR_VALUE, provider); 692 out.endTag(null, TAG_PROVIDER); 693 } 694 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 695 } 696 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 697 permittedAccessiblityServices); 698 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 699 if (hasUserRestrictions()) { 700 UserRestrictionsUtils.writeRestrictions( 701 out, userRestrictions, TAG_USER_RESTRICTIONS); 702 } 703 } 704 705 void writePackageListToXml(XmlSerializer out, String outerTag, 706 List<String> packageList) 707 throws IllegalArgumentException, IllegalStateException, IOException { 708 if (packageList == null) { 709 return; 710 } 711 712 out.startTag(null, outerTag); 713 for (String packageName : packageList) { 714 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 715 out.attribute(null, ATTR_VALUE, packageName); 716 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 717 } 718 out.endTag(null, outerTag); 719 } 720 721 void readFromXml(XmlPullParser parser) 722 throws XmlPullParserException, IOException { 723 int outerDepth = parser.getDepth(); 724 int type; 725 while ((type=parser.next()) != END_DOCUMENT 726 && (type != END_TAG || parser.getDepth() > outerDepth)) { 727 if (type == END_TAG || type == TEXT) { 728 continue; 729 } 730 String tag = parser.getName(); 731 if (TAG_POLICIES.equals(tag)) { 732 info.readPoliciesFromXml(parser); 733 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 734 passwordQuality = Integer.parseInt( 735 parser.getAttributeValue(null, ATTR_VALUE)); 736 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 737 minimumPasswordLength = Integer.parseInt( 738 parser.getAttributeValue(null, ATTR_VALUE)); 739 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 740 passwordHistoryLength = Integer.parseInt( 741 parser.getAttributeValue(null, ATTR_VALUE)); 742 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 743 minimumPasswordUpperCase = Integer.parseInt( 744 parser.getAttributeValue(null, ATTR_VALUE)); 745 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 746 minimumPasswordLowerCase = Integer.parseInt( 747 parser.getAttributeValue(null, ATTR_VALUE)); 748 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 749 minimumPasswordLetters = Integer.parseInt( 750 parser.getAttributeValue(null, ATTR_VALUE)); 751 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 752 minimumPasswordNumeric = Integer.parseInt( 753 parser.getAttributeValue(null, ATTR_VALUE)); 754 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 755 minimumPasswordSymbols = Integer.parseInt( 756 parser.getAttributeValue(null, ATTR_VALUE)); 757 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 758 minimumPasswordNonLetter = Integer.parseInt( 759 parser.getAttributeValue(null, ATTR_VALUE)); 760 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 761 maximumTimeToUnlock = Long.parseLong( 762 parser.getAttributeValue(null, ATTR_VALUE)); 763 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 764 maximumFailedPasswordsForWipe = Integer.parseInt( 765 parser.getAttributeValue(null, ATTR_VALUE)); 766 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 767 specifiesGlobalProxy = Boolean.parseBoolean( 768 parser.getAttributeValue(null, ATTR_VALUE)); 769 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 770 globalProxySpec = 771 parser.getAttributeValue(null, ATTR_VALUE); 772 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 773 globalProxyExclusionList = 774 parser.getAttributeValue(null, ATTR_VALUE); 775 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 776 passwordExpirationTimeout = Long.parseLong( 777 parser.getAttributeValue(null, ATTR_VALUE)); 778 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 779 passwordExpirationDate = Long.parseLong( 780 parser.getAttributeValue(null, ATTR_VALUE)); 781 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 782 encryptionRequested = Boolean.parseBoolean( 783 parser.getAttributeValue(null, ATTR_VALUE)); 784 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 785 disableCamera = Boolean.parseBoolean( 786 parser.getAttributeValue(null, ATTR_VALUE)); 787 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 788 disableCallerId = Boolean.parseBoolean( 789 parser.getAttributeValue(null, ATTR_VALUE)); 790 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 791 disableBluetoothContactSharing = Boolean.parseBoolean(parser 792 .getAttributeValue(null, ATTR_VALUE)); 793 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 794 disableScreenCapture = Boolean.parseBoolean( 795 parser.getAttributeValue(null, ATTR_VALUE)); 796 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 797 requireAutoTime= Boolean.parseBoolean( 798 parser.getAttributeValue(null, ATTR_VALUE)); 799 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 800 disabledKeyguardFeatures = Integer.parseInt( 801 parser.getAttributeValue(null, ATTR_VALUE)); 802 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 803 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 804 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 805 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 806 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 807 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 808 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 809 permittedAccessiblityServices = readPackageList(parser, tag); 810 } else if (TAG_PERMITTED_IMES.equals(tag)) { 811 permittedInputMethods = readPackageList(parser, tag); 812 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 813 UserRestrictionsUtils.readRestrictions(parser, ensureUserRestrictions()); 814 } else { 815 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 816 XmlUtils.skipCurrentTag(parser); 817 } 818 } 819 } 820 821 private List<String> readPackageList(XmlPullParser parser, 822 String tag) throws XmlPullParserException, IOException { 823 List<String> result = new ArrayList<String>(); 824 int outerDepth = parser.getDepth(); 825 int outerType; 826 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 827 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 828 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 829 continue; 830 } 831 String outerTag = parser.getName(); 832 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 833 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 834 if (packageName != null) { 835 result.add(packageName); 836 } else { 837 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 838 } 839 } else { 840 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 841 } 842 } 843 return result; 844 } 845 846 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 847 throws XmlPullParserException, IOException { 848 int outerDepthDAM = parser.getDepth(); 849 int typeDAM; 850 Set<String> result = new ArraySet<>(); 851 while ((typeDAM=parser.next()) != END_DOCUMENT 852 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 853 if (typeDAM == END_TAG || typeDAM == TEXT) { 854 continue; 855 } 856 String tagDAM = parser.getName(); 857 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 858 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 859 } else { 860 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 861 } 862 } 863 return result; 864 } 865 866 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 867 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 868 int outerDepthDAM = parser.getDepth(); 869 int typeDAM; 870 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 871 while ((typeDAM=parser.next()) != END_DOCUMENT 872 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 873 if (typeDAM == END_TAG || typeDAM == TEXT) { 874 continue; 875 } 876 String tagDAM = parser.getName(); 877 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 878 final String component = parser.getAttributeValue(null, ATTR_VALUE); 879 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 880 result.put(component, trustAgentInfo); 881 } else { 882 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 883 } 884 } 885 return result; 886 } 887 888 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 889 throws XmlPullParserException, IOException { 890 int outerDepthDAM = parser.getDepth(); 891 int typeDAM; 892 TrustAgentInfo result = new TrustAgentInfo(null); 893 while ((typeDAM=parser.next()) != END_DOCUMENT 894 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 895 if (typeDAM == END_TAG || typeDAM == TEXT) { 896 continue; 897 } 898 String tagDAM = parser.getName(); 899 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 900 PersistableBundle bundle = new PersistableBundle(); 901 bundle.restoreFromXml(parser); 902 result.options = bundle; 903 } else { 904 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 905 } 906 } 907 return result; 908 } 909 910 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 911 throws XmlPullParserException, IOException { 912 int outerDepthDAM = parser.getDepth(); 913 int typeDAM; 914 ArrayList<String> result = null; 915 while ((typeDAM=parser.next()) != END_DOCUMENT 916 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 917 if (typeDAM == END_TAG || typeDAM == TEXT) { 918 continue; 919 } 920 String tagDAM = parser.getName(); 921 if (TAG_PROVIDER.equals(tagDAM)) { 922 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 923 if (result == null) { 924 result = new ArrayList<>(); 925 } 926 result.add(provider); 927 } else { 928 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 929 } 930 } 931 return result; 932 } 933 934 boolean hasUserRestrictions() { 935 return userRestrictions != null && userRestrictions.size() > 0; 936 } 937 938 Bundle ensureUserRestrictions() { 939 if (userRestrictions == null) { 940 userRestrictions = new Bundle(); 941 } 942 return userRestrictions; 943 } 944 945 void dump(String prefix, PrintWriter pw) { 946 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 947 pw.print(prefix); pw.println("policies:"); 948 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 949 if (pols != null) { 950 for (int i=0; i<pols.size(); i++) { 951 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 952 } 953 } 954 pw.print(prefix); pw.print("passwordQuality=0x"); 955 pw.println(Integer.toHexString(passwordQuality)); 956 pw.print(prefix); pw.print("minimumPasswordLength="); 957 pw.println(minimumPasswordLength); 958 pw.print(prefix); pw.print("passwordHistoryLength="); 959 pw.println(passwordHistoryLength); 960 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 961 pw.println(minimumPasswordUpperCase); 962 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 963 pw.println(minimumPasswordLowerCase); 964 pw.print(prefix); pw.print("minimumPasswordLetters="); 965 pw.println(minimumPasswordLetters); 966 pw.print(prefix); pw.print("minimumPasswordNumeric="); 967 pw.println(minimumPasswordNumeric); 968 pw.print(prefix); pw.print("minimumPasswordSymbols="); 969 pw.println(minimumPasswordSymbols); 970 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 971 pw.println(minimumPasswordNonLetter); 972 pw.print(prefix); pw.print("maximumTimeToUnlock="); 973 pw.println(maximumTimeToUnlock); 974 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 975 pw.println(maximumFailedPasswordsForWipe); 976 pw.print(prefix); pw.print("specifiesGlobalProxy="); 977 pw.println(specifiesGlobalProxy); 978 pw.print(prefix); pw.print("passwordExpirationTimeout="); 979 pw.println(passwordExpirationTimeout); 980 pw.print(prefix); pw.print("passwordExpirationDate="); 981 pw.println(passwordExpirationDate); 982 if (globalProxySpec != null) { 983 pw.print(prefix); pw.print("globalProxySpec="); 984 pw.println(globalProxySpec); 985 } 986 if (globalProxyExclusionList != null) { 987 pw.print(prefix); pw.print("globalProxyEclusionList="); 988 pw.println(globalProxyExclusionList); 989 } 990 pw.print(prefix); pw.print("encryptionRequested="); 991 pw.println(encryptionRequested); 992 pw.print(prefix); pw.print("disableCamera="); 993 pw.println(disableCamera); 994 pw.print(prefix); pw.print("disableCallerId="); 995 pw.println(disableCallerId); 996 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 997 pw.println(disableBluetoothContactSharing); 998 pw.print(prefix); pw.print("disableScreenCapture="); 999 pw.println(disableScreenCapture); 1000 pw.print(prefix); pw.print("requireAutoTime="); 1001 pw.println(requireAutoTime); 1002 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1003 pw.println(disabledKeyguardFeatures); 1004 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1005 pw.println(crossProfileWidgetProviders); 1006 if (!(permittedAccessiblityServices == null)) { 1007 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1008 pw.println(permittedAccessiblityServices.toString()); 1009 } 1010 if (!(permittedInputMethods == null)) { 1011 pw.print(prefix); pw.print("permittedInputMethods="); 1012 pw.println(permittedInputMethods.toString()); 1013 } 1014 pw.print(prefix); pw.println("userRestrictions:"); 1015 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1016 } 1017 } 1018 1019 // DO NOT call it while taking the "this" lock, which could cause a dead lock. 1020 private void handlePackagesChanged(String packageName, int userHandle) { 1021 boolean removed = false; 1022 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1023 DevicePolicyData policy = getUserData(userHandle); 1024 synchronized (this) { 1025 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1026 ActiveAdmin aa = policy.mAdminList.get(i); 1027 try { 1028 // If we're checking all packages or if the specific one we're checking matches, 1029 // then check if the package and receiver still exist. 1030 final String adminPackage = aa.info.getPackageName(); 1031 if (packageName == null || packageName.equals(adminPackage)) { 1032 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1033 || mIPackageManager.getReceiverInfo( 1034 aa.info.getComponent(), 0, userHandle) == null) { 1035 removed = true; 1036 policy.mAdminList.remove(i); 1037 policy.mAdminMap.remove(aa.info.getComponent()); 1038 } 1039 } 1040 } catch (RemoteException re) { 1041 // Shouldn't happen 1042 } 1043 } 1044 if (removed) { 1045 validatePasswordOwnerLocked(policy); 1046 saveSettingsLocked(policy.mUserHandle); 1047 } 1048 1049 if (policy.mDelegatedCertInstallerPackage != null && 1050 (packageName == null 1051 || packageName.equals(policy.mDelegatedCertInstallerPackage))) { 1052 try { 1053 // Check if delegated cert installer package is removed. 1054 if (mIPackageManager.getPackageInfo( 1055 policy.mDelegatedCertInstallerPackage, 0, userHandle) == null) { 1056 policy.mDelegatedCertInstallerPackage = null; 1057 saveSettingsLocked(policy.mUserHandle); 1058 } 1059 } catch (RemoteException e) { 1060 // Shouldn't happen 1061 } 1062 } 1063 } 1064 if (removed) { 1065 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 1066 synchronized (DevicePolicyManagerService.this) { 1067 mUserManagerInternal.updateEffectiveUserRestrictionsRL( 1068 userHandle); 1069 } 1070 } 1071 } 1072 } 1073 1074 /** 1075 * Unit test will subclass it to inject mocks. 1076 */ 1077 @VisibleForTesting 1078 static class Injector { 1079 1080 private final Context mContext; 1081 1082 Injector(Context context) { 1083 mContext = context; 1084 } 1085 1086 Owners newOwners() { 1087 return new Owners(mContext); 1088 } 1089 1090 UserManager getUserManager() { 1091 return UserManager.get(mContext); 1092 } 1093 1094 UserManagerInternal getUserManagerInternal() { 1095 return LocalServices.getService(UserManagerInternal.class); 1096 } 1097 1098 NotificationManager getNotificationManager() { 1099 return mContext.getSystemService(NotificationManager.class); 1100 } 1101 1102 PowerManagerInternal getPowerManagerInternal() { 1103 return LocalServices.getService(PowerManagerInternal.class); 1104 } 1105 1106 IWindowManager getIWindowManager() { 1107 return IWindowManager.Stub 1108 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1109 } 1110 1111 IActivityManager getIActivityManager() { 1112 return ActivityManagerNative.getDefault(); 1113 } 1114 1115 IPackageManager getIPackageManager() { 1116 return AppGlobals.getPackageManager(); 1117 } 1118 1119 IBackupManager getIBackupManager() { 1120 return IBackupManager.Stub.asInterface( 1121 ServiceManager.getService(Context.BACKUP_SERVICE)); 1122 } 1123 1124 IAudioService getIAudioService() { 1125 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1126 } 1127 1128 LockPatternUtils newLockPatternUtils() { 1129 return new LockPatternUtils(mContext); 1130 } 1131 1132 Looper getMyLooper() { 1133 return Looper.myLooper(); 1134 } 1135 1136 long binderClearCallingIdentity() { 1137 return Binder.clearCallingIdentity(); 1138 } 1139 1140 void binderRestoreCallingIdentity(long token) { 1141 Binder.restoreCallingIdentity(token); 1142 } 1143 1144 int binderGetCallingUid() { 1145 return Binder.getCallingUid(); 1146 } 1147 1148 int binderGetCallingPid() { 1149 return Binder.getCallingPid(); 1150 } 1151 1152 UserHandle binderGetCallingUserHandle() { 1153 return Binder.getCallingUserHandle(); 1154 } 1155 1156 boolean binderIsCallingUidMyUid() { 1157 return getCallingUid() == Process.myUid(); 1158 } 1159 1160 final int userHandleGetCallingUserId() { 1161 return UserHandle.getUserId(binderGetCallingUid()); 1162 } 1163 1164 File environmentGetUserSystemDirectory(int userId) { 1165 return Environment.getUserSystemDirectory(userId); 1166 } 1167 1168 void powerManagerGoToSleep(long time, int reason, int flags) { 1169 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1170 } 1171 1172 boolean systemPropertiesGetBoolean(String key, boolean def) { 1173 return SystemProperties.getBoolean(key, def); 1174 } 1175 1176 long systemPropertiesGetLong(String key, long def) { 1177 return SystemProperties.getLong(key, def); 1178 } 1179 1180 String systemPropertiesGet(String key, String def) { 1181 return SystemProperties.get(key, def); 1182 } 1183 1184 String systemPropertiesGet(String key) { 1185 return SystemProperties.get(key); 1186 } 1187 1188 void systemPropertiesSet(String key, String value) { 1189 SystemProperties.set(key, value); 1190 } 1191 1192 boolean userManagerIsSplitSystemUser() { 1193 return UserManager.isSplitSystemUser(); 1194 } 1195 1196 String getDevicePolicyFilePathForSystemUser() { 1197 return "/data/system/"; 1198 } 1199 1200 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1201 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1202 name, def, userHandle); 1203 } 1204 1205 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1206 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1207 name, value, userHandle); 1208 } 1209 1210 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1211 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1212 name, value, userHandle); 1213 } 1214 1215 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1216 Settings.Global.putStringForUser(mContext.getContentResolver(), 1217 name, value, userHandle); 1218 } 1219 1220 void settingsSecurePutInt(String name, int value) { 1221 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1222 } 1223 1224 void settingsGlobalPutInt(String name, int value) { 1225 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1226 } 1227 1228 void settingsSecurePutString(String name, String value) { 1229 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1230 } 1231 1232 void settingsGlobalPutString(String name, String value) { 1233 Settings.Global.putString(mContext.getContentResolver(), name, value); 1234 } 1235 } 1236 1237 /** 1238 * Instantiates the service. 1239 */ 1240 public DevicePolicyManagerService(Context context) { 1241 this(new Injector(context)); 1242 } 1243 1244 @VisibleForTesting 1245 DevicePolicyManagerService(Injector injector) { 1246 mInjector = injector; 1247 mContext = Preconditions.checkNotNull(injector.mContext); 1248 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1249 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1250 1251 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1252 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1253 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1254 1255 mLocalService = new LocalService(); 1256 1257 mHasFeature = mContext.getPackageManager() 1258 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1259 if (!mHasFeature) { 1260 // Skip the rest of the initialization 1261 return; 1262 } 1263 IntentFilter filter = new IntentFilter(); 1264 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1265 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1266 filter.addAction(Intent.ACTION_USER_REMOVED); 1267 filter.addAction(Intent.ACTION_USER_STARTED); 1268 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1269 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1270 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1271 filter = new IntentFilter(); 1272 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1273 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1274 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1275 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1276 filter.addDataScheme("package"); 1277 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1278 filter = new IntentFilter(); 1279 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1280 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1281 1282 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1283 } 1284 1285 /** 1286 * Creates and loads the policy data from xml. 1287 * @param userHandle the user for whom to load the policy data 1288 * @return 1289 */ 1290 @NonNull 1291 DevicePolicyData getUserData(int userHandle) { 1292 synchronized (this) { 1293 DevicePolicyData policy = mUserData.get(userHandle); 1294 if (policy == null) { 1295 policy = new DevicePolicyData(userHandle); 1296 mUserData.append(userHandle, policy); 1297 loadSettingsLocked(policy, userHandle); 1298 } 1299 return policy; 1300 } 1301 } 1302 1303 /** 1304 * Creates and loads the policy data from xml for data that is shared between 1305 * various profiles of a user. In contrast to {@link #getUserData(int)} 1306 * it allows access to data of users other than the calling user. 1307 * 1308 * This function should only be used for shared data, e.g. everything regarding 1309 * passwords and should be removed once multiple screen locks are present. 1310 * @param userHandle the user for whom to load the policy data 1311 * @return 1312 */ 1313 DevicePolicyData getUserDataUnchecked(int userHandle) { 1314 long ident = mInjector.binderClearCallingIdentity(); 1315 try { 1316 return getUserData(userHandle); 1317 } finally { 1318 mInjector.binderRestoreCallingIdentity(ident); 1319 } 1320 } 1321 1322 void removeUserData(int userHandle) { 1323 synchronized (this) { 1324 if (userHandle == UserHandle.USER_SYSTEM) { 1325 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1326 return; 1327 } 1328 mOwners.removeProfileOwner(userHandle); 1329 mOwners.writeProfileOwner(userHandle); 1330 1331 DevicePolicyData policy = mUserData.get(userHandle); 1332 if (policy != null) { 1333 mUserData.remove(userHandle); 1334 } 1335 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1336 DEVICE_POLICIES_XML); 1337 policyFile.delete(); 1338 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1339 } 1340 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1341 } 1342 1343 void loadOwners() { 1344 synchronized (this) { 1345 mOwners.load(); 1346 findOwnerComponentIfNecessaryLocked(); 1347 migrateUserRestrictionsIfNecessaryLocked(); 1348 1349 // TODO PO may not have a class name either due to b/17652534. Address that too. 1350 1351 updateDeviceOwnerLocked(); 1352 1353 // TODO Notify UM to update restrictions (?) 1354 } 1355 } 1356 1357 private void findOwnerComponentIfNecessaryLocked() { 1358 if (!mOwners.hasDeviceOwner()) { 1359 return; 1360 } 1361 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1362 1363 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1364 return; // Already a full component name. 1365 } 1366 1367 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1368 doComponentName.getPackageName(), 1369 mOwners.getDeviceOwnerUserId()); 1370 if (doComponent == null) { 1371 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1372 } else { 1373 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1374 doComponent, 1375 mOwners.getDeviceOwnerName(), 1376 mOwners.getDeviceOwnerUserId(), 1377 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1378 mOwners.writeDeviceOwner(); 1379 if (VERBOSE_LOG) { 1380 Log.v(LOG_TAG, "Device owner component filled in"); 1381 } 1382 } 1383 } 1384 1385 /** 1386 * We didn't use to persist user restrictions for each owners but only persisted in user 1387 * manager. 1388 */ 1389 private void migrateUserRestrictionsIfNecessaryLocked() { 1390 boolean migrated = false; 1391 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1392 // except for the "system controlled" ones. 1393 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1394 if (VERBOSE_LOG) { 1395 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1396 } 1397 migrated = true; 1398 1399 // Migrate user 0 restrictions to DO, except for "system" restrictions. 1400 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1401 1402 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1403 /* exceptionList =*/ UserRestrictionsUtils.SYSTEM_CONTROLLED_USER_RESTRICTIONS); 1404 1405 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1406 } 1407 1408 // Migrate for POs. We have a few more exceptions. 1409 final Set<String> normalExceptionList = Sets.newArraySet( 1410 UserManager.DISALLOW_OUTGOING_CALLS, 1411 UserManager.DISALLOW_SMS); 1412 normalExceptionList.addAll(UserRestrictionsUtils.SYSTEM_CONTROLLED_USER_RESTRICTIONS); 1413 1414 final Set<String> managedExceptionList = new ArraySet<>(normalExceptionList.size() + 1); 1415 managedExceptionList.addAll(normalExceptionList); 1416 managedExceptionList.add(UserManager.DISALLOW_WALLPAPER); 1417 1418 for (UserInfo ui : mUserManager.getUsers()) { 1419 final int userId = ui.id; 1420 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1421 if (userId != UserHandle.USER_SYSTEM) { 1422 if (VERBOSE_LOG) { 1423 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1424 } 1425 migrated = true; 1426 1427 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1428 1429 final Set<String> exceptionList = 1430 ui.isManagedProfile() ? managedExceptionList : normalExceptionList; 1431 1432 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1433 exceptionList); 1434 } 1435 1436 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1437 } 1438 } 1439 if (VERBOSE_LOG && migrated) { 1440 Log.v(LOG_TAG, "User restrictions migrated."); 1441 } 1442 } 1443 1444 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1445 Set<String> exceptionList) { 1446 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1447 user.getIdentifier()); 1448 1449 final Bundle newSystemRestrictions = new Bundle(); 1450 final Bundle newOwnerRestrictions = new Bundle(); 1451 1452 for (String key : origRestrictions.keySet()) { 1453 if (!origRestrictions.getBoolean(key)) { 1454 continue; 1455 } 1456 if (exceptionList.contains(key)) { 1457 newSystemRestrictions.putBoolean(key, true); 1458 } else { 1459 newOwnerRestrictions.putBoolean(key, true); 1460 } 1461 } 1462 1463 if (VERBOSE_LOG) { 1464 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1465 Log.v(LOG_TAG, "newSystemRestrictions=" + newSystemRestrictions); 1466 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1467 } 1468 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1469 newSystemRestrictions); 1470 1471 if (admin != null) { 1472 admin.ensureUserRestrictions().clear(); 1473 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1474 } else { 1475 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1476 } 1477 saveSettingsLocked(user.getIdentifier()); 1478 } 1479 1480 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1481 final DevicePolicyData policy = getUserData(userId); 1482 final int n = policy.mAdminList.size(); 1483 ComponentName found = null; 1484 int nFound = 0; 1485 for (int i = 0; i < n; i++) { 1486 final ActiveAdmin admin = policy.mAdminList.get(i); 1487 if (packageName.equals(admin.info.getPackageName())) { 1488 // Found! 1489 if (nFound == 0) { 1490 found = admin.info.getComponent(); 1491 } 1492 nFound++; 1493 } 1494 } 1495 if (nFound > 1) { 1496 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1497 } 1498 return found; 1499 } 1500 1501 /** 1502 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1503 * reminders. Clears alarm if no expirations are configured. 1504 */ 1505 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1506 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1507 final long now = System.currentTimeMillis(); 1508 final long timeToExpire = expiration - now; 1509 final long alarmTime; 1510 if (expiration == 0) { 1511 // No expirations are currently configured: Cancel alarm. 1512 alarmTime = 0; 1513 } else if (timeToExpire <= 0) { 1514 // The password has already expired: Repeat every 24 hours. 1515 alarmTime = now + MS_PER_DAY; 1516 } else { 1517 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1518 // the expiration time. 1519 long alarmInterval = timeToExpire % MS_PER_DAY; 1520 if (alarmInterval == 0) { 1521 alarmInterval = MS_PER_DAY; 1522 } 1523 alarmTime = now + alarmInterval; 1524 } 1525 1526 long token = mInjector.binderClearCallingIdentity(); 1527 try { 1528 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1529 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1530 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1531 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1532 new UserHandle(policy.mUserHandle)); 1533 am.cancel(pi); 1534 if (alarmTime != 0) { 1535 am.set(AlarmManager.RTC, alarmTime, pi); 1536 } 1537 } finally { 1538 mInjector.binderRestoreCallingIdentity(token); 1539 } 1540 } 1541 1542 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1543 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1544 if (admin != null 1545 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1546 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1547 return admin; 1548 } 1549 return null; 1550 } 1551 1552 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1553 throws SecurityException { 1554 final int callingUid = mInjector.binderGetCallingUid(); 1555 1556 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1557 if (result != null) { 1558 return result; 1559 } 1560 1561 if (who != null) { 1562 final int userId = UserHandle.getUserId(callingUid); 1563 final DevicePolicyData policy = getUserData(userId); 1564 ActiveAdmin admin = policy.mAdminMap.get(who); 1565 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1566 throw new SecurityException("Admin " + admin.info.getComponent() 1567 + " does not own the device"); 1568 } 1569 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1570 throw new SecurityException("Admin " + admin.info.getComponent() 1571 + " does not own the profile"); 1572 } 1573 throw new SecurityException("Admin " + admin.info.getComponent() 1574 + " did not specify uses-policy for: " 1575 + admin.info.getTagForPolicy(reqPolicy)); 1576 } else { 1577 throw new SecurityException("No active admin owned by uid " 1578 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 1579 } 1580 } 1581 1582 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1583 int uid) { 1584 // Try to find an admin which can use reqPolicy 1585 final int userId = UserHandle.getUserId(uid); 1586 final DevicePolicyData policy = getUserData(userId); 1587 if (who != null) { 1588 ActiveAdmin admin = policy.mAdminMap.get(who); 1589 if (admin == null) { 1590 throw new SecurityException("No active admin " + who); 1591 } 1592 if (admin.getUid() != uid) { 1593 throw new SecurityException("Admin " + who + " is not owned by uid " 1594 + mInjector.binderGetCallingUid()); 1595 } 1596 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 1597 return admin; 1598 } 1599 } else { 1600 for (ActiveAdmin admin : policy.mAdminList) { 1601 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 1602 userId)) { 1603 return admin; 1604 } 1605 } 1606 } 1607 1608 return null; 1609 } 1610 1611 @VisibleForTesting 1612 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 1613 int userId) { 1614 boolean ownsDevice = isDeviceOwner(admin.info.getComponent()); 1615 boolean ownsProfile = (getProfileOwner(userId) != null 1616 && getProfileOwner(userId).getPackageName() 1617 .equals(admin.info.getPackageName())); 1618 1619 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1620 if ((userId == UserHandle.USER_SYSTEM && ownsDevice) || (ownsDevice && ownsProfile)) { 1621 return true; 1622 } 1623 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1624 if ((userId == UserHandle.USER_SYSTEM && ownsDevice) || ownsProfile) { 1625 return true; 1626 } 1627 } else { 1628 if (admin.info.usesPolicy(reqPolicy)) { 1629 return true; 1630 } 1631 } 1632 return false; 1633 } 1634 1635 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1636 sendAdminCommandLocked(admin, action, null); 1637 } 1638 1639 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1640 sendAdminCommandLocked(admin, action, null, result); 1641 } 1642 1643 /** 1644 * Send an update to one specific admin, get notified when that admin returns a result. 1645 */ 1646 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1647 BroadcastReceiver result) { 1648 Intent intent = new Intent(action); 1649 intent.setComponent(admin.info.getComponent()); 1650 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1651 intent.putExtra("expiration", admin.passwordExpirationDate); 1652 } 1653 if (adminExtras != null) { 1654 intent.putExtras(adminExtras); 1655 } 1656 if (result != null) { 1657 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1658 null, result, mHandler, Activity.RESULT_OK, null, null); 1659 } else { 1660 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1661 } 1662 } 1663 1664 /** 1665 * Send an update to all admins of a user that enforce a specified policy. 1666 */ 1667 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1668 final DevicePolicyData policy = getUserData(userHandle); 1669 final int count = policy.mAdminList.size(); 1670 if (count > 0) { 1671 for (int i = 0; i < count; i++) { 1672 final ActiveAdmin admin = policy.mAdminList.get(i); 1673 if (admin.info.usesPolicy(reqPolicy)) { 1674 sendAdminCommandLocked(admin, action); 1675 } 1676 } 1677 } 1678 } 1679 1680 /** 1681 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1682 * enforce a specified policy. 1683 */ 1684 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1685 int userHandle) { 1686 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1687 for (UserInfo ui : profiles) { 1688 int id = ui.id; 1689 sendAdminCommandLocked(action, reqPolicy, id); 1690 } 1691 } 1692 1693 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 1694 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1695 if (admin != null) { 1696 synchronized (this) { 1697 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 1698 } 1699 sendAdminCommandLocked(admin, 1700 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1701 new BroadcastReceiver() { 1702 @Override 1703 public void onReceive(Context context, Intent intent) { 1704 synchronized (DevicePolicyManagerService.this) { 1705 int userHandle = admin.getUserHandle().getIdentifier(); 1706 DevicePolicyData policy = getUserData(userHandle); 1707 boolean doProxyCleanup = admin.info.usesPolicy( 1708 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1709 policy.mAdminList.remove(admin); 1710 policy.mAdminMap.remove(adminReceiver); 1711 validatePasswordOwnerLocked(policy); 1712 if (doProxyCleanup) { 1713 resetGlobalProxyLocked(getUserData(userHandle)); 1714 } 1715 saveSettingsLocked(userHandle); 1716 updateMaximumTimeToLockLocked(policy); 1717 policy.mRemovingAdmins.remove(adminReceiver); 1718 } 1719 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 1720 synchronized (DevicePolicyManagerService.this) { 1721 mUserManagerInternal.updateEffectiveUserRestrictionsRL( 1722 userHandle); 1723 } 1724 } 1725 } 1726 }); 1727 } 1728 } 1729 1730 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) { 1731 if (!mHasFeature) { 1732 return null; 1733 } 1734 enforceCrossUserPermission(userHandle); 1735 Intent resolveIntent = new Intent(); 1736 resolveIntent.setComponent(adminName); 1737 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1738 resolveIntent, 1739 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1740 userHandle); 1741 if (infos == null || infos.size() <= 0) { 1742 throw new IllegalArgumentException("Unknown admin: " + adminName); 1743 } 1744 1745 try { 1746 return new DeviceAdminInfo(mContext, infos.get(0)); 1747 } catch (XmlPullParserException e) { 1748 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1749 e); 1750 return null; 1751 } catch (IOException e) { 1752 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1753 e); 1754 return null; 1755 } 1756 } 1757 1758 private JournaledFile makeJournaledFile(int userHandle) { 1759 final String base = userHandle == UserHandle.USER_SYSTEM 1760 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 1761 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1762 DEVICE_POLICIES_XML).getAbsolutePath(); 1763 if (VERBOSE_LOG) { 1764 Log.v(LOG_TAG, "Opening " + base); 1765 } 1766 return new JournaledFile(new File(base), new File(base + ".tmp")); 1767 } 1768 1769 private void saveSettingsLocked(int userHandle) { 1770 DevicePolicyData policy = getUserData(userHandle); 1771 JournaledFile journal = makeJournaledFile(userHandle); 1772 FileOutputStream stream = null; 1773 try { 1774 stream = new FileOutputStream(journal.chooseForWrite(), false); 1775 XmlSerializer out = new FastXmlSerializer(); 1776 out.setOutput(stream, StandardCharsets.UTF_8.name()); 1777 out.startDocument(null, true); 1778 1779 out.startTag(null, "policies"); 1780 if (policy.mRestrictionsProvider != null) { 1781 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1782 policy.mRestrictionsProvider.flattenToString()); 1783 } 1784 if (policy.mUserSetupComplete) { 1785 out.attribute(null, ATTR_SETUP_COMPLETE, 1786 Boolean.toString(true)); 1787 } 1788 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 1789 out.attribute(null, ATTR_PERMISSION_POLICY, 1790 Integer.toString(policy.mPermissionPolicy)); 1791 } 1792 if (policy.mDelegatedCertInstallerPackage != null) { 1793 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 1794 policy.mDelegatedCertInstallerPackage); 1795 } 1796 1797 final int N = policy.mAdminList.size(); 1798 for (int i=0; i<N; i++) { 1799 ActiveAdmin ap = policy.mAdminList.get(i); 1800 if (ap != null) { 1801 out.startTag(null, "admin"); 1802 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1803 ap.writeToXml(out); 1804 out.endTag(null, "admin"); 1805 } 1806 } 1807 1808 if (policy.mPasswordOwner >= 0) { 1809 out.startTag(null, "password-owner"); 1810 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1811 out.endTag(null, "password-owner"); 1812 } 1813 1814 if (policy.mFailedPasswordAttempts != 0) { 1815 out.startTag(null, "failed-password-attempts"); 1816 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1817 out.endTag(null, "failed-password-attempts"); 1818 } 1819 1820 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1821 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1822 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1823 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1824 out.startTag(null, "active-password"); 1825 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1826 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1827 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1828 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1829 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1830 out.attribute(null, "numeric", Integer 1831 .toString(policy.mActivePasswordNumeric)); 1832 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1833 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1834 out.endTag(null, "active-password"); 1835 } 1836 1837 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1838 String component = policy.mLockTaskPackages.get(i); 1839 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 1840 out.attribute(null, "name", component); 1841 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 1842 } 1843 1844 if (policy.mStatusBarDisabled) { 1845 out.startTag(null, TAG_STATUS_BAR); 1846 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 1847 out.endTag(null, TAG_STATUS_BAR); 1848 } 1849 1850 if (policy.doNotAskCredentialsOnBoot) { 1851 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1852 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1853 } 1854 1855 out.endTag(null, "policies"); 1856 1857 out.endDocument(); 1858 stream.flush(); 1859 FileUtils.sync(stream); 1860 stream.close(); 1861 journal.commit(); 1862 sendChangedNotification(userHandle); 1863 } catch (IOException e) { 1864 Slog.w(LOG_TAG, "failed writing file", e); 1865 try { 1866 if (stream != null) { 1867 stream.close(); 1868 } 1869 } catch (IOException ex) { 1870 // Ignore 1871 } 1872 journal.rollback(); 1873 } 1874 } 1875 1876 private void sendChangedNotification(int userHandle) { 1877 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1878 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1879 long ident = mInjector.binderClearCallingIdentity(); 1880 try { 1881 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1882 } finally { 1883 mInjector.binderRestoreCallingIdentity(ident); 1884 } 1885 } 1886 1887 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1888 JournaledFile journal = makeJournaledFile(userHandle); 1889 FileInputStream stream = null; 1890 File file = journal.chooseForRead(); 1891 try { 1892 stream = new FileInputStream(file); 1893 XmlPullParser parser = Xml.newPullParser(); 1894 parser.setInput(stream, StandardCharsets.UTF_8.name()); 1895 1896 int type; 1897 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1898 && type != XmlPullParser.START_TAG) { 1899 } 1900 String tag = parser.getName(); 1901 if (!"policies".equals(tag)) { 1902 throw new XmlPullParserException( 1903 "Settings do not start with policies tag: found " + tag); 1904 } 1905 1906 // Extract the permission provider component name if available 1907 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1908 if (permissionProvider != null) { 1909 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1910 } 1911 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1912 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1913 policy.mUserSetupComplete = true; 1914 } 1915 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 1916 if (!TextUtils.isEmpty(permissionPolicy)) { 1917 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 1918 } 1919 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 1920 ATTR_DELEGATED_CERT_INSTALLER); 1921 1922 type = parser.next(); 1923 int outerDepth = parser.getDepth(); 1924 policy.mLockTaskPackages.clear(); 1925 policy.mAdminList.clear(); 1926 policy.mAdminMap.clear(); 1927 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1928 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1929 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1930 continue; 1931 } 1932 tag = parser.getName(); 1933 if ("admin".equals(tag)) { 1934 String name = parser.getAttributeValue(null, "name"); 1935 try { 1936 DeviceAdminInfo dai = findAdmin( 1937 ComponentName.unflattenFromString(name), userHandle); 1938 if (VERBOSE_LOG 1939 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1940 != userHandle)) { 1941 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1942 + dai.getActivityInfo().applicationInfo.uid + " for user " 1943 + userHandle); 1944 } 1945 if (dai != null) { 1946 ActiveAdmin ap = new ActiveAdmin(dai); 1947 ap.readFromXml(parser); 1948 policy.mAdminMap.put(ap.info.getComponent(), ap); 1949 } 1950 } catch (RuntimeException e) { 1951 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1952 } 1953 } else if ("failed-password-attempts".equals(tag)) { 1954 policy.mFailedPasswordAttempts = Integer.parseInt( 1955 parser.getAttributeValue(null, "value")); 1956 } else if ("password-owner".equals(tag)) { 1957 policy.mPasswordOwner = Integer.parseInt( 1958 parser.getAttributeValue(null, "value")); 1959 } else if ("active-password".equals(tag)) { 1960 policy.mActivePasswordQuality = Integer.parseInt( 1961 parser.getAttributeValue(null, "quality")); 1962 policy.mActivePasswordLength = Integer.parseInt( 1963 parser.getAttributeValue(null, "length")); 1964 policy.mActivePasswordUpperCase = Integer.parseInt( 1965 parser.getAttributeValue(null, "uppercase")); 1966 policy.mActivePasswordLowerCase = Integer.parseInt( 1967 parser.getAttributeValue(null, "lowercase")); 1968 policy.mActivePasswordLetters = Integer.parseInt( 1969 parser.getAttributeValue(null, "letters")); 1970 policy.mActivePasswordNumeric = Integer.parseInt( 1971 parser.getAttributeValue(null, "numeric")); 1972 policy.mActivePasswordSymbols = Integer.parseInt( 1973 parser.getAttributeValue(null, "symbols")); 1974 policy.mActivePasswordNonLetter = Integer.parseInt( 1975 parser.getAttributeValue(null, "nonletter")); 1976 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 1977 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 1978 } else if (TAG_STATUS_BAR.equals(tag)) { 1979 policy.mStatusBarDisabled = Boolean.parseBoolean( 1980 parser.getAttributeValue(null, ATTR_DISABLED)); 1981 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 1982 policy.doNotAskCredentialsOnBoot = true; 1983 } else { 1984 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1985 XmlUtils.skipCurrentTag(parser); 1986 } 1987 } 1988 } catch (NullPointerException e) { 1989 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1990 } catch (NumberFormatException e) { 1991 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1992 } catch (XmlPullParserException e) { 1993 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1994 } catch (FileNotFoundException e) { 1995 // Don't be noisy, this is normal if we haven't defined any policies. 1996 } catch (IOException e) { 1997 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1998 } catch (IndexOutOfBoundsException e) { 1999 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 2000 } 2001 try { 2002 if (stream != null) { 2003 stream.close(); 2004 } 2005 } catch (IOException e) { 2006 // Ignore 2007 } 2008 2009 // Generate a list of admins from the admin map 2010 policy.mAdminList.addAll(policy.mAdminMap.values()); 2011 2012 // Validate that what we stored for the password quality matches 2013 // sufficiently what is currently set. Note that this is only 2014 // a sanity check in case the two get out of sync; this should 2015 // never normally happen. 2016 final long identity = mInjector.binderClearCallingIdentity(); 2017 try { 2018 LockPatternUtils utils = mInjector.newLockPatternUtils(); 2019 if (utils.getActivePasswordQuality(userHandle) < policy.mActivePasswordQuality) { 2020 Slog.w(LOG_TAG, "Active password quality 0x" 2021 + Integer.toHexString(policy.mActivePasswordQuality) 2022 + " does not match actual quality 0x" 2023 + Integer.toHexString(utils.getActivePasswordQuality(userHandle))); 2024 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2025 policy.mActivePasswordLength = 0; 2026 policy.mActivePasswordUpperCase = 0; 2027 policy.mActivePasswordLowerCase = 0; 2028 policy.mActivePasswordLetters = 0; 2029 policy.mActivePasswordNumeric = 0; 2030 policy.mActivePasswordSymbols = 0; 2031 policy.mActivePasswordNonLetter = 0; 2032 } 2033 } finally { 2034 mInjector.binderRestoreCallingIdentity(identity); 2035 } 2036 2037 validatePasswordOwnerLocked(policy); 2038 updateMaximumTimeToLockLocked(policy); 2039 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2040 if (policy.mStatusBarDisabled) { 2041 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2042 } 2043 } 2044 2045 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2046 long ident = mInjector.binderClearCallingIdentity(); 2047 try { 2048 mInjector.getIActivityManager() 2049 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2050 } catch (RemoteException e) { 2051 // Not gonna happen. 2052 } finally { 2053 mInjector.binderRestoreCallingIdentity(ident); 2054 } 2055 } 2056 2057 private void updateDeviceOwnerLocked() { 2058 long ident = mInjector.binderClearCallingIdentity(); 2059 try { 2060 if (getDeviceOwner() != null) { 2061 mInjector.getIActivityManager() 2062 .updateDeviceOwner(getDeviceOwner().getPackageName()); 2063 } 2064 } catch (RemoteException e) { 2065 // Not gonna happen. 2066 } finally { 2067 mInjector.binderRestoreCallingIdentity(ident); 2068 } 2069 } 2070 2071 static void validateQualityConstant(int quality) { 2072 switch (quality) { 2073 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2074 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2075 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2076 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2077 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2078 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2079 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2080 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2081 return; 2082 } 2083 throw new IllegalArgumentException("Invalid quality constant: 0x" 2084 + Integer.toHexString(quality)); 2085 } 2086 2087 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2088 if (policy.mPasswordOwner >= 0) { 2089 boolean haveOwner = false; 2090 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2091 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2092 haveOwner = true; 2093 break; 2094 } 2095 } 2096 if (!haveOwner) { 2097 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2098 + " no longer active; disabling"); 2099 policy.mPasswordOwner = -1; 2100 } 2101 } 2102 } 2103 2104 @VisibleForTesting 2105 void systemReady(int phase) { 2106 if (!mHasFeature) { 2107 return; 2108 } 2109 switch (phase) { 2110 case SystemService.PHASE_LOCK_SETTINGS_READY: 2111 onLockSettingsReady(); 2112 break; 2113 case SystemService.PHASE_BOOT_COMPLETED: 2114 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2115 break; 2116 } 2117 } 2118 2119 private void onLockSettingsReady() { 2120 getUserData(UserHandle.USER_SYSTEM); 2121 loadOwners(); 2122 cleanUpOldUsers(); 2123 // Register an observer for watching for user setup complete. 2124 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 2125 // Initialize the user setup state, to handle the upgrade case. 2126 updateUserSetupComplete(); 2127 2128 // Update the screen capture disabled cache in the window manager 2129 List<UserInfo> users = mUserManager.getUsers(true); 2130 final int N = users.size(); 2131 for (int i = 0; i < N; i++) { 2132 int userHandle = users.get(i).id; 2133 updateScreenCaptureDisabledInWindowManager(userHandle, 2134 getScreenCaptureDisabled(null, userHandle)); 2135 } 2136 } 2137 2138 private void ensureDeviceOwnerUserStarted() { 2139 if (mOwners.hasDeviceOwner()) { 2140 final int userId = mOwners.getDeviceOwnerUserId(); 2141 if (VERBOSE_LOG) { 2142 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2143 } 2144 if (userId != UserHandle.USER_SYSTEM) { 2145 try { 2146 mInjector.getIActivityManager().startUserInBackground(userId); 2147 2148 // STOPSHIP Prevent the DO user from being killed. 2149 2150 } catch (RemoteException e) { 2151 Slog.w(LOG_TAG, "Exception starting user", e); 2152 } 2153 } 2154 } 2155 } 2156 2157 private void cleanUpOldUsers() { 2158 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2159 // before reboot 2160 Set<Integer> usersWithProfileOwners; 2161 Set<Integer> usersWithData; 2162 synchronized(this) { 2163 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2164 usersWithData = new ArraySet<>(); 2165 for (int i = 0; i < mUserData.size(); i++) { 2166 usersWithData.add(mUserData.keyAt(i)); 2167 } 2168 } 2169 List<UserInfo> allUsers = mUserManager.getUsers(); 2170 2171 Set<Integer> deletedUsers = new ArraySet<>(); 2172 deletedUsers.addAll(usersWithProfileOwners); 2173 deletedUsers.addAll(usersWithData); 2174 for (UserInfo userInfo : allUsers) { 2175 deletedUsers.remove(userInfo.id); 2176 } 2177 for (Integer userId : deletedUsers) { 2178 removeUserData(userId); 2179 } 2180 } 2181 2182 private void handlePasswordExpirationNotification(int userHandle) { 2183 synchronized (this) { 2184 final long now = System.currentTimeMillis(); 2185 2186 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2187 for (UserInfo ui : profiles) { 2188 int profileUserHandle = ui.id; 2189 final DevicePolicyData policy = getUserData(profileUserHandle); 2190 final int count = policy.mAdminList.size(); 2191 if (count > 0) { 2192 for (int i = 0; i < count; i++) { 2193 final ActiveAdmin admin = policy.mAdminList.get(i); 2194 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2195 && admin.passwordExpirationTimeout > 0L 2196 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2197 && admin.passwordExpirationDate > 0L) { 2198 sendAdminCommandLocked(admin, 2199 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2200 } 2201 } 2202 } 2203 } 2204 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2205 } 2206 } 2207 2208 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 2209 @Override 2210 protected Void doInBackground(Intent... params) { 2211 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 2212 2213 if (userHandle == UserHandle.USER_ALL) { 2214 for (UserInfo userInfo : mUserManager.getUsers()) { 2215 manageNotification(userInfo.getUserHandle()); 2216 } 2217 } else { 2218 manageNotification(new UserHandle(userHandle)); 2219 } 2220 return null; 2221 } 2222 2223 private void manageNotification(UserHandle userHandle) { 2224 if (!mUserManager.isUserRunning(userHandle)) { 2225 return; 2226 } 2227 2228 // Call out to KeyChain to check for user-added CAs 2229 boolean hasCert = false; 2230 try { 2231 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 2232 try { 2233 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 2234 hasCert = true; 2235 } 2236 } catch (RemoteException e) { 2237 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2238 } finally { 2239 kcs.close(); 2240 } 2241 } catch (InterruptedException e) { 2242 Thread.currentThread().interrupt(); 2243 } catch (RuntimeException e) { 2244 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2245 } 2246 if (!hasCert) { 2247 mInjector.getNotificationManager().cancelAsUser( 2248 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2249 return; 2250 } 2251 2252 // Build and show a warning notification 2253 int smallIconId; 2254 String contentText; 2255 final String ownerName = getDeviceOwnerName(); 2256 if (isManagedProfile(userHandle.getIdentifier())) { 2257 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 2258 smallIconId = R.drawable.stat_sys_certificate_info; 2259 } else if (ownerName != null) { 2260 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 2261 smallIconId = R.drawable.stat_sys_certificate_info; 2262 } else { 2263 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2264 smallIconId = android.R.drawable.stat_sys_warning; 2265 } 2266 2267 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2268 dialogIntent.setFlags( 2269 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2270 dialogIntent.setPackage("com.android.settings"); 2271 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2272 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 2273 2274 final Context userContext; 2275 try { 2276 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 2277 } catch (PackageManager.NameNotFoundException e) { 2278 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2279 return; 2280 } 2281 final Notification noti = new Notification.Builder(userContext) 2282 .setSmallIcon(smallIconId) 2283 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 2284 .setContentText(contentText) 2285 .setContentIntent(notifyIntent) 2286 .setPriority(Notification.PRIORITY_HIGH) 2287 .setShowWhen(false) 2288 .setColor(mContext.getColor( 2289 com.android.internal.R.color.system_notification_accent_color)) 2290 .build(); 2291 2292 mInjector.getNotificationManager().notifyAsUser( 2293 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2294 } 2295 } 2296 2297 /** 2298 * @param adminReceiver The admin to add 2299 * @param refreshing true = update an active admin, no error 2300 */ 2301 @Override 2302 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2303 if (!mHasFeature) { 2304 return; 2305 } 2306 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2307 } 2308 2309 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2310 Bundle onEnableData) { 2311 mContext.enforceCallingOrSelfPermission( 2312 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2313 enforceCrossUserPermission(userHandle); 2314 2315 DevicePolicyData policy = getUserData(userHandle); 2316 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle); 2317 if (info == null) { 2318 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2319 } 2320 synchronized (this) { 2321 long ident = mInjector.binderClearCallingIdentity(); 2322 try { 2323 if (!refreshing 2324 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 2325 throw new IllegalArgumentException("Admin is already added"); 2326 } 2327 ActiveAdmin newAdmin = new ActiveAdmin(info); 2328 policy.mAdminMap.put(adminReceiver, newAdmin); 2329 int replaceIndex = -1; 2330 final int N = policy.mAdminList.size(); 2331 for (int i=0; i < N; i++) { 2332 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2333 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2334 replaceIndex = i; 2335 break; 2336 } 2337 } 2338 if (replaceIndex == -1) { 2339 policy.mAdminList.add(newAdmin); 2340 enableIfNecessary(info.getPackageName(), userHandle); 2341 } else { 2342 policy.mAdminList.set(replaceIndex, newAdmin); 2343 } 2344 saveSettingsLocked(userHandle); 2345 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2346 onEnableData, null); 2347 } finally { 2348 mInjector.binderRestoreCallingIdentity(ident); 2349 } 2350 } 2351 } 2352 2353 @Override 2354 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2355 if (!mHasFeature) { 2356 return false; 2357 } 2358 enforceCrossUserPermission(userHandle); 2359 synchronized (this) { 2360 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2361 } 2362 } 2363 2364 @Override 2365 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2366 if (!mHasFeature) { 2367 return false; 2368 } 2369 enforceCrossUserPermission(userHandle); 2370 synchronized (this) { 2371 DevicePolicyData policyData = getUserData(userHandle); 2372 return policyData.mRemovingAdmins.contains(adminReceiver); 2373 } 2374 } 2375 2376 @Override 2377 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2378 if (!mHasFeature) { 2379 return false; 2380 } 2381 enforceCrossUserPermission(userHandle); 2382 synchronized (this) { 2383 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2384 if (administrator == null) { 2385 throw new SecurityException("No active admin " + adminReceiver); 2386 } 2387 return administrator.info.usesPolicy(policyId); 2388 } 2389 } 2390 2391 @Override 2392 @SuppressWarnings("unchecked") 2393 public List<ComponentName> getActiveAdmins(int userHandle) { 2394 if (!mHasFeature) { 2395 return Collections.EMPTY_LIST; 2396 } 2397 2398 enforceCrossUserPermission(userHandle); 2399 synchronized (this) { 2400 DevicePolicyData policy = getUserData(userHandle); 2401 final int N = policy.mAdminList.size(); 2402 if (N <= 0) { 2403 return null; 2404 } 2405 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2406 for (int i=0; i<N; i++) { 2407 res.add(policy.mAdminList.get(i).info.getComponent()); 2408 } 2409 return res; 2410 } 2411 } 2412 2413 @Override 2414 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2415 if (!mHasFeature) { 2416 return false; 2417 } 2418 enforceCrossUserPermission(userHandle); 2419 synchronized (this) { 2420 DevicePolicyData policy = getUserData(userHandle); 2421 final int N = policy.mAdminList.size(); 2422 for (int i=0; i<N; i++) { 2423 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2424 return true; 2425 } 2426 } 2427 return false; 2428 } 2429 } 2430 2431 @Override 2432 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 2433 if (!mHasFeature) { 2434 return; 2435 } 2436 enforceCrossUserPermission(userHandle); 2437 synchronized (this) { 2438 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2439 if (admin == null) { 2440 return; 2441 } 2442 if (admin.getUid() != mInjector.binderGetCallingUid()) { 2443 // Active device owners must remain active admins. 2444 if (isDeviceOwner(adminReceiver)) { 2445 return; 2446 } 2447 mContext.enforceCallingOrSelfPermission( 2448 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2449 } 2450 long ident = mInjector.binderClearCallingIdentity(); 2451 try { 2452 removeActiveAdminLocked(adminReceiver, userHandle); 2453 } finally { 2454 mInjector.binderRestoreCallingIdentity(ident); 2455 } 2456 } 2457 } 2458 2459 @Override 2460 public void setPasswordQuality(ComponentName who, int quality) { 2461 if (!mHasFeature) { 2462 return; 2463 } 2464 Preconditions.checkNotNull(who, "ComponentName is null"); 2465 final int userHandle = UserHandle.getCallingUserId(); 2466 validateQualityConstant(quality); 2467 2468 synchronized (this) { 2469 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2470 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2471 if (ap.passwordQuality != quality) { 2472 ap.passwordQuality = quality; 2473 saveSettingsLocked(userHandle); 2474 } 2475 } 2476 } 2477 2478 @Override 2479 public int getPasswordQuality(ComponentName who, int userHandle) { 2480 if (!mHasFeature) { 2481 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2482 } 2483 enforceCrossUserPermission(userHandle); 2484 synchronized (this) { 2485 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2486 2487 if (who != null) { 2488 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2489 return admin != null ? admin.passwordQuality : mode; 2490 } 2491 2492 // Return strictest policy for this user and profiles that are visible from this user. 2493 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2494 for (UserInfo userInfo : profiles) { 2495 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2496 final int N = policy.mAdminList.size(); 2497 for (int i=0; i<N; i++) { 2498 ActiveAdmin admin = policy.mAdminList.get(i); 2499 if (mode < admin.passwordQuality) { 2500 mode = admin.passwordQuality; 2501 } 2502 } 2503 } 2504 return mode; 2505 } 2506 } 2507 2508 @Override 2509 public void setPasswordMinimumLength(ComponentName who, int length) { 2510 if (!mHasFeature) { 2511 return; 2512 } 2513 Preconditions.checkNotNull(who, "ComponentName is null"); 2514 final int userHandle = UserHandle.getCallingUserId(); 2515 synchronized (this) { 2516 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2517 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2518 if (ap.minimumPasswordLength != length) { 2519 ap.minimumPasswordLength = length; 2520 saveSettingsLocked(userHandle); 2521 } 2522 } 2523 } 2524 2525 @Override 2526 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 2527 if (!mHasFeature) { 2528 return 0; 2529 } 2530 enforceCrossUserPermission(userHandle); 2531 synchronized (this) { 2532 int length = 0; 2533 2534 if (who != null) { 2535 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2536 return admin != null ? admin.minimumPasswordLength : length; 2537 } 2538 2539 // Return strictest policy for this user and profiles that are visible from this user. 2540 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2541 for (UserInfo userInfo : profiles) { 2542 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2543 final int N = policy.mAdminList.size(); 2544 for (int i=0; i<N; i++) { 2545 ActiveAdmin admin = policy.mAdminList.get(i); 2546 if (length < admin.minimumPasswordLength) { 2547 length = admin.minimumPasswordLength; 2548 } 2549 } 2550 } 2551 return length; 2552 } 2553 } 2554 2555 @Override 2556 public void setPasswordHistoryLength(ComponentName who, int length) { 2557 if (!mHasFeature) { 2558 return; 2559 } 2560 Preconditions.checkNotNull(who, "ComponentName is null"); 2561 final int userHandle = UserHandle.getCallingUserId(); 2562 synchronized (this) { 2563 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2564 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2565 if (ap.passwordHistoryLength != length) { 2566 ap.passwordHistoryLength = length; 2567 saveSettingsLocked(userHandle); 2568 } 2569 } 2570 } 2571 2572 @Override 2573 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 2574 if (!mHasFeature) { 2575 return 0; 2576 } 2577 enforceCrossUserPermission(userHandle); 2578 synchronized (this) { 2579 int length = 0; 2580 2581 if (who != null) { 2582 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2583 return admin != null ? admin.passwordHistoryLength : length; 2584 } 2585 2586 // Return strictest policy for this user and profiles that are visible from this user. 2587 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2588 for (UserInfo userInfo : profiles) { 2589 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2590 final int N = policy.mAdminList.size(); 2591 for (int i = 0; i < N; i++) { 2592 ActiveAdmin admin = policy.mAdminList.get(i); 2593 if (length < admin.passwordHistoryLength) { 2594 length = admin.passwordHistoryLength; 2595 } 2596 } 2597 } 2598 return length; 2599 } 2600 } 2601 2602 @Override 2603 public void setPasswordExpirationTimeout(ComponentName who, long timeout) { 2604 if (!mHasFeature) { 2605 return; 2606 } 2607 Preconditions.checkNotNull(who, "ComponentName is null"); 2608 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 2609 final int userHandle = UserHandle.getCallingUserId(); 2610 synchronized (this) { 2611 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2612 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2613 // Calling this API automatically bumps the expiration date 2614 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2615 ap.passwordExpirationDate = expiration; 2616 ap.passwordExpirationTimeout = timeout; 2617 if (timeout > 0L) { 2618 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2619 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2620 .format(new Date(expiration))); 2621 } 2622 saveSettingsLocked(userHandle); 2623 // in case this is the first one 2624 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2625 } 2626 } 2627 2628 /** 2629 * Return a single admin's expiration cycle time, or the min of all cycle times. 2630 * Returns 0 if not configured. 2631 */ 2632 @Override 2633 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2634 if (!mHasFeature) { 2635 return 0L; 2636 } 2637 enforceCrossUserPermission(userHandle); 2638 synchronized (this) { 2639 long timeout = 0L; 2640 2641 if (who != null) { 2642 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2643 return admin != null ? admin.passwordExpirationTimeout : timeout; 2644 } 2645 2646 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2647 for (UserInfo userInfo : profiles) { 2648 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2649 final int N = policy.mAdminList.size(); 2650 for (int i = 0; i < N; i++) { 2651 ActiveAdmin admin = policy.mAdminList.get(i); 2652 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2653 && timeout > admin.passwordExpirationTimeout)) { 2654 timeout = admin.passwordExpirationTimeout; 2655 } 2656 } 2657 } 2658 return timeout; 2659 } 2660 } 2661 2662 @Override 2663 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2664 final int userId = UserHandle.getCallingUserId(); 2665 List<String> changedProviders = null; 2666 2667 synchronized (this) { 2668 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2669 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2670 if (activeAdmin.crossProfileWidgetProviders == null) { 2671 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2672 } 2673 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2674 if (!providers.contains(packageName)) { 2675 providers.add(packageName); 2676 changedProviders = new ArrayList<>(providers); 2677 saveSettingsLocked(userId); 2678 } 2679 } 2680 2681 if (changedProviders != null) { 2682 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2683 return true; 2684 } 2685 2686 return false; 2687 } 2688 2689 @Override 2690 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2691 final int userId = UserHandle.getCallingUserId(); 2692 List<String> changedProviders = null; 2693 2694 synchronized (this) { 2695 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2696 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2697 if (activeAdmin.crossProfileWidgetProviders == null) { 2698 return false; 2699 } 2700 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2701 if (providers.remove(packageName)) { 2702 changedProviders = new ArrayList<>(providers); 2703 saveSettingsLocked(userId); 2704 } 2705 } 2706 2707 if (changedProviders != null) { 2708 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2709 return true; 2710 } 2711 2712 return false; 2713 } 2714 2715 @Override 2716 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2717 synchronized (this) { 2718 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2719 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2720 if (activeAdmin.crossProfileWidgetProviders == null 2721 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2722 return null; 2723 } 2724 if (mInjector.binderIsCallingUidMyUid()) { 2725 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2726 } else { 2727 return activeAdmin.crossProfileWidgetProviders; 2728 } 2729 } 2730 } 2731 2732 /** 2733 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2734 * Returns 0 if not configured. 2735 */ 2736 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2737 long timeout = 0L; 2738 2739 if (who != null) { 2740 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2741 return admin != null ? admin.passwordExpirationDate : timeout; 2742 } 2743 2744 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2745 for (UserInfo userInfo : profiles) { 2746 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2747 final int N = policy.mAdminList.size(); 2748 for (int i = 0; i < N; i++) { 2749 ActiveAdmin admin = policy.mAdminList.get(i); 2750 if (timeout == 0L || (admin.passwordExpirationDate != 0 2751 && timeout > admin.passwordExpirationDate)) { 2752 timeout = admin.passwordExpirationDate; 2753 } 2754 } 2755 } 2756 return timeout; 2757 } 2758 2759 @Override 2760 public long getPasswordExpiration(ComponentName who, int userHandle) { 2761 if (!mHasFeature) { 2762 return 0L; 2763 } 2764 enforceCrossUserPermission(userHandle); 2765 synchronized (this) { 2766 return getPasswordExpirationLocked(who, userHandle); 2767 } 2768 } 2769 2770 @Override 2771 public void setPasswordMinimumUpperCase(ComponentName who, int length) { 2772 if (!mHasFeature) { 2773 return; 2774 } 2775 Preconditions.checkNotNull(who, "ComponentName is null"); 2776 final int userHandle = UserHandle.getCallingUserId(); 2777 synchronized (this) { 2778 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2779 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2780 if (ap.minimumPasswordUpperCase != length) { 2781 ap.minimumPasswordUpperCase = length; 2782 saveSettingsLocked(userHandle); 2783 } 2784 } 2785 } 2786 2787 @Override 2788 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2789 if (!mHasFeature) { 2790 return 0; 2791 } 2792 enforceCrossUserPermission(userHandle); 2793 synchronized (this) { 2794 int length = 0; 2795 2796 if (who != null) { 2797 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2798 return admin != null ? admin.minimumPasswordUpperCase : length; 2799 } 2800 2801 // Return strictest policy for this user and profiles that are visible from this user. 2802 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2803 for (UserInfo userInfo : profiles) { 2804 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2805 final int N = policy.mAdminList.size(); 2806 for (int i=0; i<N; i++) { 2807 ActiveAdmin admin = policy.mAdminList.get(i); 2808 if (length < admin.minimumPasswordUpperCase) { 2809 length = admin.minimumPasswordUpperCase; 2810 } 2811 } 2812 } 2813 return length; 2814 } 2815 } 2816 2817 @Override 2818 public void setPasswordMinimumLowerCase(ComponentName who, int length) { 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.minimumPasswordLowerCase != length) { 2825 ap.minimumPasswordLowerCase = length; 2826 saveSettingsLocked(userHandle); 2827 } 2828 } 2829 } 2830 2831 @Override 2832 public int getPasswordMinimumLowerCase(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.minimumPasswordLowerCase : 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 (length < admin.minimumPasswordLowerCase) { 2853 length = admin.minimumPasswordLowerCase; 2854 } 2855 } 2856 } 2857 return length; 2858 } 2859 } 2860 2861 @Override 2862 public void setPasswordMinimumLetters(ComponentName who, int length) { 2863 if (!mHasFeature) { 2864 return; 2865 } 2866 Preconditions.checkNotNull(who, "ComponentName is null"); 2867 final int userHandle = UserHandle.getCallingUserId(); 2868 synchronized (this) { 2869 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2870 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2871 if (ap.minimumPasswordLetters != length) { 2872 ap.minimumPasswordLetters = length; 2873 saveSettingsLocked(userHandle); 2874 } 2875 } 2876 } 2877 2878 @Override 2879 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2880 if (!mHasFeature) { 2881 return 0; 2882 } 2883 enforceCrossUserPermission(userHandle); 2884 synchronized (this) { 2885 int length = 0; 2886 2887 if (who != null) { 2888 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2889 return admin != null ? admin.minimumPasswordLetters : length; 2890 } 2891 2892 // Return strictest policy for this user and profiles that are visible from this user. 2893 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2894 for (UserInfo userInfo : profiles) { 2895 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2896 final int N = policy.mAdminList.size(); 2897 for (int i=0; i<N; i++) { 2898 ActiveAdmin admin = policy.mAdminList.get(i); 2899 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2900 continue; 2901 } 2902 if (length < admin.minimumPasswordLetters) { 2903 length = admin.minimumPasswordLetters; 2904 } 2905 } 2906 } 2907 return length; 2908 } 2909 } 2910 2911 @Override 2912 public void setPasswordMinimumNumeric(ComponentName who, int length) { 2913 if (!mHasFeature) { 2914 return; 2915 } 2916 Preconditions.checkNotNull(who, "ComponentName is null"); 2917 final int userHandle = UserHandle.getCallingUserId(); 2918 synchronized (this) { 2919 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2920 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2921 if (ap.minimumPasswordNumeric != length) { 2922 ap.minimumPasswordNumeric = length; 2923 saveSettingsLocked(userHandle); 2924 } 2925 } 2926 } 2927 2928 @Override 2929 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2930 if (!mHasFeature) { 2931 return 0; 2932 } 2933 enforceCrossUserPermission(userHandle); 2934 synchronized (this) { 2935 int length = 0; 2936 2937 if (who != null) { 2938 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2939 return admin != null ? admin.minimumPasswordNumeric : length; 2940 } 2941 2942 // Return strictest policy for this user and profiles that are visible from this user. 2943 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2944 for (UserInfo userInfo : profiles) { 2945 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2946 final int N = policy.mAdminList.size(); 2947 for (int i = 0; i < N; i++) { 2948 ActiveAdmin admin = policy.mAdminList.get(i); 2949 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2950 continue; 2951 } 2952 if (length < admin.minimumPasswordNumeric) { 2953 length = admin.minimumPasswordNumeric; 2954 } 2955 } 2956 } 2957 return length; 2958 } 2959 } 2960 2961 @Override 2962 public void setPasswordMinimumSymbols(ComponentName who, int length) { 2963 if (!mHasFeature) { 2964 return; 2965 } 2966 Preconditions.checkNotNull(who, "ComponentName is null"); 2967 final int userHandle = UserHandle.getCallingUserId(); 2968 synchronized (this) { 2969 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2970 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2971 if (ap.minimumPasswordSymbols != length) { 2972 ap.minimumPasswordSymbols = length; 2973 saveSettingsLocked(userHandle); 2974 } 2975 } 2976 } 2977 2978 @Override 2979 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 2980 if (!mHasFeature) { 2981 return 0; 2982 } 2983 enforceCrossUserPermission(userHandle); 2984 synchronized (this) { 2985 int length = 0; 2986 2987 if (who != null) { 2988 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2989 return admin != null ? admin.minimumPasswordSymbols : length; 2990 } 2991 2992 // Return strictest policy for this user and profiles that are visible from this user. 2993 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2994 for (UserInfo userInfo : profiles) { 2995 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2996 final int N = policy.mAdminList.size(); 2997 for (int i=0; i<N; i++) { 2998 ActiveAdmin admin = policy.mAdminList.get(i); 2999 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3000 continue; 3001 } 3002 if (length < admin.minimumPasswordSymbols) { 3003 length = admin.minimumPasswordSymbols; 3004 } 3005 } 3006 } 3007 return length; 3008 } 3009 } 3010 3011 @Override 3012 public void setPasswordMinimumNonLetter(ComponentName who, int length) { 3013 if (!mHasFeature) { 3014 return; 3015 } 3016 Preconditions.checkNotNull(who, "ComponentName is null"); 3017 final int userHandle = UserHandle.getCallingUserId(); 3018 synchronized (this) { 3019 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3020 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3021 if (ap.minimumPasswordNonLetter != length) { 3022 ap.minimumPasswordNonLetter = length; 3023 saveSettingsLocked(userHandle); 3024 } 3025 } 3026 } 3027 3028 @Override 3029 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 3030 if (!mHasFeature) { 3031 return 0; 3032 } 3033 enforceCrossUserPermission(userHandle); 3034 synchronized (this) { 3035 int length = 0; 3036 3037 if (who != null) { 3038 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3039 return admin != null ? admin.minimumPasswordNonLetter : length; 3040 } 3041 3042 // Return strictest policy for this user and profiles that are visible from this user. 3043 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3044 for (UserInfo userInfo : profiles) { 3045 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3046 final int N = policy.mAdminList.size(); 3047 for (int i=0; i<N; i++) { 3048 ActiveAdmin admin = policy.mAdminList.get(i); 3049 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3050 continue; 3051 } 3052 if (length < admin.minimumPasswordNonLetter) { 3053 length = admin.minimumPasswordNonLetter; 3054 } 3055 } 3056 } 3057 return length; 3058 } 3059 } 3060 3061 @Override 3062 public boolean isActivePasswordSufficient(int userHandle) { 3063 if (!mHasFeature) { 3064 return true; 3065 } 3066 enforceCrossUserPermission(userHandle); 3067 3068 synchronized (this) { 3069 3070 // The active password is stored in the user that runs the launcher 3071 // If the user this is called from is part of a profile group, that is the parent 3072 // of the group. 3073 UserInfo parent = getProfileParent(userHandle); 3074 int id = (parent == null) ? userHandle : parent.id; 3075 DevicePolicyData policy = getUserDataUnchecked(id); 3076 3077 // This API can only be called by an active device admin, 3078 // so try to retrieve it to check that the caller is one. 3079 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3080 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 3081 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 3082 return false; 3083 } 3084 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3085 return true; 3086 } 3087 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 3088 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 3089 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 3090 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 3091 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 3092 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 3093 } 3094 } 3095 3096 @Override 3097 public int getCurrentFailedPasswordAttempts(int userHandle) { 3098 synchronized (this) { 3099 // This API can only be called by an active device admin, 3100 // so try to retrieve it to check that the caller is one. 3101 getActiveAdminForCallerLocked(null, 3102 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3103 3104 // The active password is stored in the parent. 3105 UserInfo parent = getProfileParent(userHandle); 3106 int id = (parent == null) ? userHandle : parent.id; 3107 DevicePolicyData policy = getUserDataUnchecked(id); 3108 3109 return policy.mFailedPasswordAttempts; 3110 } 3111 } 3112 3113 @Override 3114 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) { 3115 if (!mHasFeature) { 3116 return; 3117 } 3118 Preconditions.checkNotNull(who, "ComponentName is null"); 3119 final int userHandle = UserHandle.getCallingUserId(); 3120 synchronized (this) { 3121 // This API can only be called by an active device admin, 3122 // so try to retrieve it to check that the caller is one. 3123 getActiveAdminForCallerLocked(who, 3124 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3125 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3126 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3127 if (ap.maximumFailedPasswordsForWipe != num) { 3128 ap.maximumFailedPasswordsForWipe = num; 3129 saveSettingsLocked(userHandle); 3130 } 3131 } 3132 } 3133 3134 @Override 3135 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 3136 if (!mHasFeature) { 3137 return 0; 3138 } 3139 enforceCrossUserPermission(userHandle); 3140 synchronized (this) { 3141 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 3142 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3143 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3144 } 3145 } 3146 3147 @Override 3148 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle) { 3149 if (!mHasFeature) { 3150 return UserHandle.USER_NULL; 3151 } 3152 enforceCrossUserPermission(userHandle); 3153 synchronized (this) { 3154 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3155 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3156 } 3157 } 3158 3159 /** 3160 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 3161 * profiles that are visible from this user. If the policy for the primary and any other profile 3162 * are equal, it returns the admin for the primary profile. 3163 * Returns {@code null} if none of them have that policy set. 3164 */ 3165 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 3166 int count = 0; 3167 ActiveAdmin strictestAdmin = null; 3168 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3169 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3170 for (ActiveAdmin admin : policy.mAdminList) { 3171 if (admin.maximumFailedPasswordsForWipe == 3172 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3173 continue; // No max number of failed passwords policy set for this profile. 3174 } 3175 3176 // We always favor the primary profile if several profiles have the same value set. 3177 if (count == 0 || 3178 count > admin.maximumFailedPasswordsForWipe || 3179 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 3180 count = admin.maximumFailedPasswordsForWipe; 3181 strictestAdmin = admin; 3182 } 3183 } 3184 } 3185 return strictestAdmin; 3186 } 3187 3188 @Override 3189 public boolean resetPassword(String passwordOrNull, int flags) { 3190 if (!mHasFeature) { 3191 return false; 3192 } 3193 final int userHandle = UserHandle.getCallingUserId(); 3194 enforceNotManagedProfile(userHandle, "reset the password"); 3195 3196 String password = passwordOrNull != null ? passwordOrNull : ""; 3197 3198 int quality; 3199 synchronized (this) { 3200 // This api can only be called by an active device admin, 3201 // so try to retrieve it to check that the caller is one. 3202 getActiveAdminForCallerLocked(null, 3203 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3204 quality = getPasswordQuality(null, userHandle); 3205 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3206 int realQuality = LockPatternUtils.computePasswordQuality(password); 3207 if (realQuality < quality 3208 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3209 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3210 + Integer.toHexString(realQuality) 3211 + " does not meet required quality 0x" 3212 + Integer.toHexString(quality)); 3213 return false; 3214 } 3215 quality = Math.max(realQuality, quality); 3216 } 3217 int length = getPasswordMinimumLength(null, userHandle); 3218 if (password.length() < length) { 3219 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3220 + " does not meet required length " + length); 3221 return false; 3222 } 3223 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3224 int letters = 0; 3225 int uppercase = 0; 3226 int lowercase = 0; 3227 int numbers = 0; 3228 int symbols = 0; 3229 int nonletter = 0; 3230 for (int i = 0; i < password.length(); i++) { 3231 char c = password.charAt(i); 3232 if (c >= 'A' && c <= 'Z') { 3233 letters++; 3234 uppercase++; 3235 } else if (c >= 'a' && c <= 'z') { 3236 letters++; 3237 lowercase++; 3238 } else if (c >= '0' && c <= '9') { 3239 numbers++; 3240 nonletter++; 3241 } else { 3242 symbols++; 3243 nonletter++; 3244 } 3245 } 3246 int neededLetters = getPasswordMinimumLetters(null, userHandle); 3247 if(letters < neededLetters) { 3248 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 3249 + " does not meet required number of letters " + neededLetters); 3250 return false; 3251 } 3252 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 3253 if (numbers < neededNumbers) { 3254 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 3255 + " does not meet required number of numerical digits " 3256 + neededNumbers); 3257 return false; 3258 } 3259 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 3260 if (lowercase < neededLowerCase) { 3261 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 3262 + " does not meet required number of lowercase letters " 3263 + neededLowerCase); 3264 return false; 3265 } 3266 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 3267 if (uppercase < neededUpperCase) { 3268 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 3269 + " does not meet required number of uppercase letters " 3270 + neededUpperCase); 3271 return false; 3272 } 3273 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 3274 if (symbols < neededSymbols) { 3275 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 3276 + " does not meet required number of special symbols " + neededSymbols); 3277 return false; 3278 } 3279 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 3280 if (nonletter < neededNonLetter) { 3281 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 3282 + " does not meet required number of non-letter characters " 3283 + neededNonLetter); 3284 return false; 3285 } 3286 } 3287 } 3288 3289 int callingUid = mInjector.binderGetCallingUid(); 3290 DevicePolicyData policy = getUserData(userHandle); 3291 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 3292 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 3293 return false; 3294 } 3295 3296 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 3297 boolean doNotAskCredentialsOnBoot = 3298 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 3299 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 3300 setDoNotAskCredentialsOnBoot(); 3301 } 3302 3303 // Don't do this with the lock held, because it is going to call 3304 // back in to the service. 3305 long ident = mInjector.binderClearCallingIdentity(); 3306 try { 3307 LockPatternUtils utils = new LockPatternUtils(mContext); 3308 if (!TextUtils.isEmpty(password)) { 3309 utils.saveLockPassword(password, null, quality, userHandle); 3310 } else { 3311 utils.clearLock(userHandle); 3312 } 3313 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 3314 if (requireEntry) { 3315 utils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 3316 UserHandle.USER_ALL); 3317 } 3318 synchronized (this) { 3319 int newOwner = requireEntry ? callingUid : -1; 3320 if (policy.mPasswordOwner != newOwner) { 3321 policy.mPasswordOwner = newOwner; 3322 saveSettingsLocked(userHandle); 3323 } 3324 } 3325 } finally { 3326 mInjector.binderRestoreCallingIdentity(ident); 3327 } 3328 3329 return true; 3330 } 3331 3332 private void setDoNotAskCredentialsOnBoot() { 3333 synchronized (this) { 3334 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3335 if (!policyData.doNotAskCredentialsOnBoot) { 3336 policyData.doNotAskCredentialsOnBoot = true; 3337 saveSettingsLocked(UserHandle.USER_SYSTEM); 3338 } 3339 } 3340 } 3341 3342 @Override 3343 public boolean getDoNotAskCredentialsOnBoot() { 3344 mContext.enforceCallingOrSelfPermission( 3345 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 3346 synchronized (this) { 3347 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3348 return policyData.doNotAskCredentialsOnBoot; 3349 } 3350 } 3351 3352 @Override 3353 public void setMaximumTimeToLock(ComponentName who, long timeMs) { 3354 if (!mHasFeature) { 3355 return; 3356 } 3357 Preconditions.checkNotNull(who, "ComponentName is null"); 3358 final int userHandle = UserHandle.getCallingUserId(); 3359 synchronized (this) { 3360 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3361 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3362 if (ap.maximumTimeToUnlock != timeMs) { 3363 ap.maximumTimeToUnlock = timeMs; 3364 saveSettingsLocked(userHandle); 3365 updateMaximumTimeToLockLocked(getUserData(userHandle)); 3366 } 3367 } 3368 } 3369 3370 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 3371 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 3372 if (policy.mLastMaximumTimeToLock == timeMs) { 3373 return; 3374 } 3375 3376 long ident = mInjector.binderClearCallingIdentity(); 3377 try { 3378 if (timeMs <= 0) { 3379 timeMs = Integer.MAX_VALUE; 3380 } else { 3381 // Make sure KEEP_SCREEN_ON is disabled, since that 3382 // would allow bypassing of the maximum time to lock. 3383 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 3384 } 3385 3386 policy.mLastMaximumTimeToLock = timeMs; 3387 // TODO It can overflow. Cap it. 3388 mInjector.getPowerManagerInternal() 3389 .setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 3390 } finally { 3391 mInjector.binderRestoreCallingIdentity(ident); 3392 } 3393 } 3394 3395 @Override 3396 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 3397 if (!mHasFeature) { 3398 return 0; 3399 } 3400 enforceCrossUserPermission(userHandle); 3401 synchronized (this) { 3402 long time = 0; 3403 3404 if (who != null) { 3405 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3406 return admin != null ? admin.maximumTimeToUnlock : time; 3407 } 3408 3409 // Return strictest policy for this user and profiles that are visible from this user. 3410 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3411 for (UserInfo userInfo : profiles) { 3412 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3413 final int N = policy.mAdminList.size(); 3414 for (int i=0; i<N; i++) { 3415 ActiveAdmin admin = policy.mAdminList.get(i); 3416 if (time == 0) { 3417 time = admin.maximumTimeToUnlock; 3418 } else if (admin.maximumTimeToUnlock != 0 3419 && time > admin.maximumTimeToUnlock) { 3420 time = admin.maximumTimeToUnlock; 3421 } 3422 } 3423 } 3424 return time; 3425 } 3426 } 3427 3428 @Override 3429 public void lockNow() { 3430 if (!mHasFeature) { 3431 return; 3432 } 3433 synchronized (this) { 3434 // This API can only be called by an active device admin, 3435 // so try to retrieve it to check that the caller is one. 3436 getActiveAdminForCallerLocked(null, 3437 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3438 lockNowUnchecked(); 3439 } 3440 } 3441 3442 private void lockNowUnchecked() { 3443 long ident = mInjector.binderClearCallingIdentity(); 3444 try { 3445 // Power off the display 3446 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 3447 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 3448 // Ensure the device is locked 3449 new LockPatternUtils(mContext).requireStrongAuth( 3450 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, UserHandle.USER_ALL); 3451 mInjector.getIWindowManager().lockNow(null); 3452 } catch (RemoteException e) { 3453 } finally { 3454 mInjector.binderRestoreCallingIdentity(ident); 3455 } 3456 } 3457 3458 @Override 3459 public void enforceCanManageCaCerts(ComponentName who) { 3460 if (who == null) { 3461 if (!isCallerDelegatedCertInstaller()) { 3462 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 3463 } 3464 } else { 3465 synchronized (this) { 3466 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3467 } 3468 } 3469 } 3470 3471 private boolean isCallerDelegatedCertInstaller() { 3472 final int callingUid = mInjector.binderGetCallingUid(); 3473 final int userHandle = UserHandle.getUserId(callingUid); 3474 synchronized (this) { 3475 final DevicePolicyData policy = getUserData(userHandle); 3476 if (policy.mDelegatedCertInstallerPackage == null) { 3477 return false; 3478 } 3479 3480 try { 3481 int uid = mContext.getPackageManager().getPackageUid( 3482 policy.mDelegatedCertInstallerPackage, userHandle); 3483 return uid == callingUid; 3484 } catch (NameNotFoundException e) { 3485 return false; 3486 } 3487 } 3488 } 3489 3490 @Override 3491 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 3492 enforceCanManageCaCerts(admin); 3493 3494 byte[] pemCert; 3495 try { 3496 X509Certificate cert = parseCert(certBuffer); 3497 pemCert = Credentials.convertToPem(cert); 3498 } catch (CertificateException ce) { 3499 Log.e(LOG_TAG, "Problem converting cert", ce); 3500 return false; 3501 } catch (IOException ioe) { 3502 Log.e(LOG_TAG, "Problem reading cert", ioe); 3503 return false; 3504 } 3505 3506 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3507 final long id = mInjector.binderClearCallingIdentity(); 3508 try { 3509 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3510 try { 3511 keyChainConnection.getService().installCaCertificate(pemCert); 3512 return true; 3513 } catch (RemoteException e) { 3514 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 3515 } finally { 3516 keyChainConnection.close(); 3517 } 3518 } catch (InterruptedException e1) { 3519 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 3520 Thread.currentThread().interrupt(); 3521 } finally { 3522 mInjector.binderRestoreCallingIdentity(id); 3523 } 3524 return false; 3525 } 3526 3527 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 3528 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 3529 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 3530 certBuffer)); 3531 } 3532 3533 @Override 3534 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 3535 enforceCanManageCaCerts(admin); 3536 3537 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3538 final long id = mInjector.binderClearCallingIdentity(); 3539 try { 3540 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3541 try { 3542 for (int i = 0 ; i < aliases.length; i++) { 3543 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 3544 } 3545 } catch (RemoteException e) { 3546 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 3547 } finally { 3548 keyChainConnection.close(); 3549 } 3550 } catch (InterruptedException ie) { 3551 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 3552 Thread.currentThread().interrupt(); 3553 } finally { 3554 mInjector.binderRestoreCallingIdentity(id); 3555 } 3556 } 3557 3558 @Override 3559 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 3560 if (who == null) { 3561 if (!isCallerDelegatedCertInstaller()) { 3562 throw new SecurityException("who == null, but caller is not cert installer"); 3563 } 3564 } else { 3565 synchronized (this) { 3566 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3567 } 3568 } 3569 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3570 final long id = mInjector.binderClearCallingIdentity(); 3571 try { 3572 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3573 try { 3574 IKeyChainService keyChain = keyChainConnection.getService(); 3575 return keyChain.installKeyPair(privKey, cert, alias); 3576 } catch (RemoteException e) { 3577 Log.e(LOG_TAG, "Installing certificate", e); 3578 } finally { 3579 keyChainConnection.close(); 3580 } 3581 } catch (InterruptedException e) { 3582 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 3583 Thread.currentThread().interrupt(); 3584 } finally { 3585 mInjector.binderRestoreCallingIdentity(id); 3586 } 3587 return false; 3588 } 3589 3590 @Override 3591 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 3592 final IBinder response) { 3593 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 3594 if (UserHandle.getAppId(mInjector.binderGetCallingUid()) != Process.SYSTEM_UID) { 3595 return; 3596 } 3597 3598 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 3599 // If there is a profile owner, redirect to that; otherwise query the device owner. 3600 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 3601 if (aliasChooser == null && caller.isSystem()) { 3602 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 3603 if (deviceOwnerAdmin != null) { 3604 aliasChooser = deviceOwnerAdmin.info.getComponent(); 3605 } 3606 } 3607 if (aliasChooser == null) { 3608 sendPrivateKeyAliasResponse(null, response); 3609 return; 3610 } 3611 3612 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 3613 intent.setComponent(aliasChooser); 3614 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 3615 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 3616 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 3617 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 3618 3619 final long id = mInjector.binderClearCallingIdentity(); 3620 try { 3621 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 3622 @Override 3623 public void onReceive(Context context, Intent intent) { 3624 final String chosenAlias = getResultData(); 3625 sendPrivateKeyAliasResponse(chosenAlias, response); 3626 } 3627 }, null, Activity.RESULT_OK, null, null); 3628 } finally { 3629 mInjector.binderRestoreCallingIdentity(id); 3630 } 3631 } 3632 3633 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 3634 final IKeyChainAliasCallback keyChainAliasResponse = 3635 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 3636 new AsyncTask<Void, Void, Void>() { 3637 @Override 3638 protected Void doInBackground(Void... unused) { 3639 try { 3640 keyChainAliasResponse.alias(alias); 3641 } catch (Exception e) { 3642 // Catch everything (not just RemoteException): caller could throw a 3643 // RuntimeException back across processes. 3644 Log.e(LOG_TAG, "error while responding to callback", e); 3645 } 3646 return null; 3647 } 3648 }.execute(); 3649 } 3650 3651 @Override 3652 public void setCertInstallerPackage(ComponentName who, String installerPackage) 3653 throws SecurityException { 3654 int userHandle = UserHandle.getCallingUserId(); 3655 synchronized (this) { 3656 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3657 DevicePolicyData policy = getUserData(userHandle); 3658 policy.mDelegatedCertInstallerPackage = installerPackage; 3659 saveSettingsLocked(userHandle); 3660 } 3661 } 3662 3663 @Override 3664 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 3665 int userHandle = UserHandle.getCallingUserId(); 3666 synchronized (this) { 3667 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3668 DevicePolicyData policy = getUserData(userHandle); 3669 return policy.mDelegatedCertInstallerPackage; 3670 } 3671 } 3672 3673 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 3674 if (wipeExtRequested) { 3675 StorageManager sm = (StorageManager) mContext.getSystemService( 3676 Context.STORAGE_SERVICE); 3677 sm.wipeAdoptableDisks(); 3678 } 3679 try { 3680 RecoverySystem.rebootWipeUserData(mContext, reason); 3681 } catch (IOException | SecurityException e) { 3682 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 3683 } 3684 } 3685 3686 @Override 3687 public void wipeData(int flags, final int userHandle) { 3688 if (!mHasFeature) { 3689 return; 3690 } 3691 enforceCrossUserPermission(userHandle); 3692 synchronized (this) { 3693 // This API can only be called by an active device admin, 3694 // so try to retrieve it to check that the caller is one. 3695 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 3696 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3697 3698 final String source = admin.info.getComponent().flattenToShortString(); 3699 3700 long ident = mInjector.binderClearCallingIdentity(); 3701 try { 3702 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 3703 if (userHandle != UserHandle.USER_SYSTEM 3704 || !isDeviceOwner(admin.info.getComponent())) { 3705 throw new SecurityException( 3706 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 3707 } 3708 PersistentDataBlockManager manager = (PersistentDataBlockManager) 3709 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 3710 if (manager != null) { 3711 manager.wipe(); 3712 } 3713 } 3714 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 3715 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 3716 "DevicePolicyManager.wipeData() from " + source); 3717 } finally { 3718 mInjector.binderRestoreCallingIdentity(ident); 3719 } 3720 } 3721 } 3722 3723 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 3724 if (userHandle == UserHandle.USER_SYSTEM) { 3725 wipeDataLocked(wipeExtRequested, reason); 3726 } else { 3727 mHandler.post(new Runnable() { 3728 @Override 3729 public void run() { 3730 try { 3731 IActivityManager am = mInjector.getIActivityManager(); 3732 if (am.getCurrentUser().id == userHandle) { 3733 am.switchUser(UserHandle.USER_SYSTEM); 3734 } 3735 3736 boolean isManagedProfile = isManagedProfile(userHandle); 3737 if (!mUserManager.removeUser(userHandle)) { 3738 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 3739 } else if (isManagedProfile) { 3740 sendWipeProfileNotification(); 3741 } 3742 } catch (RemoteException re) { 3743 // Shouldn't happen 3744 } 3745 } 3746 }); 3747 } 3748 } 3749 3750 private void sendWipeProfileNotification() { 3751 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 3752 Notification notification = new Notification.Builder(mContext) 3753 .setSmallIcon(android.R.drawable.stat_sys_warning) 3754 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 3755 .setContentText(contentText) 3756 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 3757 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 3758 .build(); 3759 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 3760 } 3761 3762 private void clearWipeProfileNotification() { 3763 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 3764 } 3765 3766 @Override 3767 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 3768 if (!mHasFeature) { 3769 return; 3770 } 3771 enforceCrossUserPermission(userHandle); 3772 mContext.enforceCallingOrSelfPermission( 3773 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3774 3775 synchronized (this) { 3776 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 3777 if (admin == null) { 3778 try { 3779 result.sendResult(null); 3780 } catch (RemoteException e) { 3781 } 3782 return; 3783 } 3784 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3785 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3786 intent.setComponent(admin.info.getComponent()); 3787 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3788 null, new BroadcastReceiver() { 3789 @Override 3790 public void onReceive(Context context, Intent intent) { 3791 try { 3792 result.sendResult(getResultExtras(false)); 3793 } catch (RemoteException e) { 3794 } 3795 } 3796 }, null, Activity.RESULT_OK, null, null); 3797 } 3798 } 3799 3800 @Override 3801 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3802 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3803 if (!mHasFeature) { 3804 return; 3805 } 3806 enforceCrossUserPermission(userHandle); 3807 // Managed Profile password can only be changed when file based encryption is present. 3808 if (!"file".equals(SystemProperties.get("ro.crypto.type", "none"))) { 3809 enforceNotManagedProfile(userHandle, "set the active password"); 3810 } 3811 3812 mContext.enforceCallingOrSelfPermission( 3813 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3814 DevicePolicyData p = getUserData(userHandle); 3815 3816 validateQualityConstant(quality); 3817 3818 synchronized (this) { 3819 if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length 3820 || p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters 3821 || p.mActivePasswordUpperCase != uppercase 3822 || p.mActivePasswordLowerCase != lowercase 3823 || p.mActivePasswordNumeric != numbers 3824 || p.mActivePasswordSymbols != symbols 3825 || p.mActivePasswordNonLetter != nonletter) { 3826 long ident = mInjector.binderClearCallingIdentity(); 3827 try { 3828 p.mActivePasswordQuality = quality; 3829 p.mActivePasswordLength = length; 3830 p.mActivePasswordLetters = letters; 3831 p.mActivePasswordLowerCase = lowercase; 3832 p.mActivePasswordUpperCase = uppercase; 3833 p.mActivePasswordNumeric = numbers; 3834 p.mActivePasswordSymbols = symbols; 3835 p.mActivePasswordNonLetter = nonletter; 3836 p.mFailedPasswordAttempts = 0; 3837 saveSettingsLocked(userHandle); 3838 updatePasswordExpirationsLocked(userHandle); 3839 setExpirationAlarmCheckLocked(mContext, p); 3840 sendAdminCommandToSelfAndProfilesLocked( 3841 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3842 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3843 } finally { 3844 mInjector.binderRestoreCallingIdentity(ident); 3845 } 3846 } 3847 } 3848 } 3849 3850 /** 3851 * Called any time the device password is updated. Resets all password expiration clocks. 3852 */ 3853 private void updatePasswordExpirationsLocked(int userHandle) { 3854 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3855 for (UserInfo userInfo : profiles) { 3856 int profileId = userInfo.id; 3857 DevicePolicyData policy = getUserDataUnchecked(profileId); 3858 final int N = policy.mAdminList.size(); 3859 if (N > 0) { 3860 for (int i=0; i<N; i++) { 3861 ActiveAdmin admin = policy.mAdminList.get(i); 3862 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3863 long timeout = admin.passwordExpirationTimeout; 3864 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3865 admin.passwordExpirationDate = expiration; 3866 } 3867 } 3868 } 3869 saveSettingsLocked(profileId); 3870 } 3871 } 3872 3873 @Override 3874 public void reportFailedPasswordAttempt(int userHandle) { 3875 enforceCrossUserPermission(userHandle); 3876 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3877 mContext.enforceCallingOrSelfPermission( 3878 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3879 3880 long ident = mInjector.binderClearCallingIdentity(); 3881 try { 3882 boolean wipeData = false; 3883 int identifier = 0; 3884 synchronized (this) { 3885 DevicePolicyData policy = getUserData(userHandle); 3886 policy.mFailedPasswordAttempts++; 3887 saveSettingsLocked(userHandle); 3888 if (mHasFeature) { 3889 ActiveAdmin strictestAdmin = 3890 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3891 int max = strictestAdmin != null 3892 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3893 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 3894 // Wipe the user/profile associated with the policy that was violated. This 3895 // is not necessarily calling user: if the policy that fired was from a 3896 // managed profile rather than the main user profile, we wipe former only. 3897 wipeData = true; 3898 identifier = strictestAdmin.getUserHandle().getIdentifier(); 3899 } 3900 sendAdminCommandToSelfAndProfilesLocked( 3901 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 3902 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3903 } 3904 } 3905 if (wipeData) { 3906 // Call without holding lock. 3907 wipeDeviceOrUserLocked(false, identifier, 3908 "reportFailedPasswordAttempt()"); 3909 } 3910 } finally { 3911 mInjector.binderRestoreCallingIdentity(ident); 3912 } 3913 } 3914 3915 @Override 3916 public void reportSuccessfulPasswordAttempt(int userHandle) { 3917 enforceCrossUserPermission(userHandle); 3918 mContext.enforceCallingOrSelfPermission( 3919 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3920 3921 synchronized (this) { 3922 DevicePolicyData policy = getUserData(userHandle); 3923 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 3924 long ident = mInjector.binderClearCallingIdentity(); 3925 try { 3926 policy.mFailedPasswordAttempts = 0; 3927 policy.mPasswordOwner = -1; 3928 saveSettingsLocked(userHandle); 3929 if (mHasFeature) { 3930 sendAdminCommandToSelfAndProfilesLocked( 3931 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 3932 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3933 } 3934 } finally { 3935 mInjector.binderRestoreCallingIdentity(ident); 3936 } 3937 } 3938 } 3939 } 3940 3941 @Override 3942 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 3943 String exclusionList) { 3944 if (!mHasFeature) { 3945 return null; 3946 } 3947 synchronized(this) { 3948 Preconditions.checkNotNull(who, "ComponentName is null"); 3949 3950 // Only check if system user has set global proxy. We don't allow other users to set it. 3951 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 3952 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3953 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 3954 3955 // Scan through active admins and find if anyone has already 3956 // set the global proxy. 3957 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 3958 for (ComponentName component : compSet) { 3959 ActiveAdmin ap = policy.mAdminMap.get(component); 3960 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 3961 // Another admin already sets the global proxy 3962 // Return it to the caller. 3963 return component; 3964 } 3965 } 3966 3967 // If the user is not system, don't set the global proxy. Fail silently. 3968 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 3969 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 3970 + UserHandle.getCallingUserId() + " is not permitted."); 3971 return null; 3972 } 3973 if (proxySpec == null) { 3974 admin.specifiesGlobalProxy = false; 3975 admin.globalProxySpec = null; 3976 admin.globalProxyExclusionList = null; 3977 } else { 3978 3979 admin.specifiesGlobalProxy = true; 3980 admin.globalProxySpec = proxySpec; 3981 admin.globalProxyExclusionList = exclusionList; 3982 } 3983 3984 // Reset the global proxy accordingly 3985 // Do this using system permissions, as apps cannot write to secure settings 3986 long origId = mInjector.binderClearCallingIdentity(); 3987 try { 3988 resetGlobalProxyLocked(policy); 3989 } finally { 3990 mInjector.binderRestoreCallingIdentity(origId); 3991 } 3992 return null; 3993 } 3994 } 3995 3996 @Override 3997 public ComponentName getGlobalProxyAdmin(int userHandle) { 3998 if (!mHasFeature) { 3999 return null; 4000 } 4001 enforceCrossUserPermission(userHandle); 4002 synchronized(this) { 4003 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4004 // Scan through active admins and find if anyone has already 4005 // set the global proxy. 4006 final int N = policy.mAdminList.size(); 4007 for (int i = 0; i < N; i++) { 4008 ActiveAdmin ap = policy.mAdminList.get(i); 4009 if (ap.specifiesGlobalProxy) { 4010 // Device admin sets the global proxy 4011 // Return it to the caller. 4012 return ap.info.getComponent(); 4013 } 4014 } 4015 } 4016 // No device admin sets the global proxy. 4017 return null; 4018 } 4019 4020 @Override 4021 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 4022 synchronized (this) { 4023 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4024 } 4025 long token = mInjector.binderClearCallingIdentity(); 4026 try { 4027 ConnectivityManager connectivityManager = (ConnectivityManager) 4028 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4029 connectivityManager.setGlobalProxy(proxyInfo); 4030 } finally { 4031 mInjector.binderRestoreCallingIdentity(token); 4032 } 4033 } 4034 4035 private void resetGlobalProxyLocked(DevicePolicyData policy) { 4036 final int N = policy.mAdminList.size(); 4037 for (int i = 0; i < N; i++) { 4038 ActiveAdmin ap = policy.mAdminList.get(i); 4039 if (ap.specifiesGlobalProxy) { 4040 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 4041 return; 4042 } 4043 } 4044 // No device admins defining global proxies - reset global proxy settings to none 4045 saveGlobalProxyLocked(null, null); 4046 } 4047 4048 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 4049 if (exclusionList == null) { 4050 exclusionList = ""; 4051 } 4052 if (proxySpec == null) { 4053 proxySpec = ""; 4054 } 4055 // Remove white spaces 4056 proxySpec = proxySpec.trim(); 4057 String data[] = proxySpec.split(":"); 4058 int proxyPort = 8080; 4059 if (data.length > 1) { 4060 try { 4061 proxyPort = Integer.parseInt(data[1]); 4062 } catch (NumberFormatException e) {} 4063 } 4064 exclusionList = exclusionList.trim(); 4065 4066 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 4067 if (!proxyProperties.isValid()) { 4068 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 4069 return; 4070 } 4071 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 4072 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 4073 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 4074 exclusionList); 4075 } 4076 4077 /** 4078 * Set the storage encryption request for a single admin. Returns the new total request 4079 * status (for all admins). 4080 */ 4081 @Override 4082 public int setStorageEncryption(ComponentName who, boolean encrypt) { 4083 if (!mHasFeature) { 4084 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4085 } 4086 Preconditions.checkNotNull(who, "ComponentName is null"); 4087 final int userHandle = UserHandle.getCallingUserId(); 4088 synchronized (this) { 4089 // Check for permissions 4090 // Only system user can set storage encryption 4091 if (userHandle != UserHandle.USER_SYSTEM) { 4092 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 4093 + UserHandle.getCallingUserId() + " is not permitted."); 4094 return 0; 4095 } 4096 4097 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4098 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 4099 4100 // Quick exit: If the filesystem does not support encryption, we can exit early. 4101 if (!isEncryptionSupported()) { 4102 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4103 } 4104 4105 // (1) Record the value for the admin so it's sticky 4106 if (ap.encryptionRequested != encrypt) { 4107 ap.encryptionRequested = encrypt; 4108 saveSettingsLocked(userHandle); 4109 } 4110 4111 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4112 // (2) Compute "max" for all admins 4113 boolean newRequested = false; 4114 final int N = policy.mAdminList.size(); 4115 for (int i = 0; i < N; i++) { 4116 newRequested |= policy.mAdminList.get(i).encryptionRequested; 4117 } 4118 4119 // Notify OS of new request 4120 setEncryptionRequested(newRequested); 4121 4122 // Return the new global request status 4123 return newRequested 4124 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4125 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4126 } 4127 } 4128 4129 /** 4130 * Get the current storage encryption request status for a given admin, or aggregate of all 4131 * active admins. 4132 */ 4133 @Override 4134 public boolean getStorageEncryption(ComponentName who, int userHandle) { 4135 if (!mHasFeature) { 4136 return false; 4137 } 4138 enforceCrossUserPermission(userHandle); 4139 synchronized (this) { 4140 // Check for permissions if a particular caller is specified 4141 if (who != null) { 4142 // When checking for a single caller, status is based on caller's request 4143 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 4144 return ap != null ? ap.encryptionRequested : false; 4145 } 4146 4147 // If no particular caller is specified, return the aggregate set of requests. 4148 // This is short circuited by returning true on the first hit. 4149 DevicePolicyData policy = getUserData(userHandle); 4150 final int N = policy.mAdminList.size(); 4151 for (int i = 0; i < N; i++) { 4152 if (policy.mAdminList.get(i).encryptionRequested) { 4153 return true; 4154 } 4155 } 4156 return false; 4157 } 4158 } 4159 4160 /** 4161 * Get the current encryption status of the device. 4162 */ 4163 @Override 4164 public int getStorageEncryptionStatus(int userHandle) { 4165 if (!mHasFeature) { 4166 // Ok to return current status. 4167 } 4168 enforceCrossUserPermission(userHandle); 4169 return getEncryptionStatus(); 4170 } 4171 4172 /** 4173 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 4174 */ 4175 private boolean isEncryptionSupported() { 4176 // Note, this can be implemented as 4177 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4178 // But is provided as a separate internal method if there's a faster way to do a 4179 // simple check for supported-or-not. 4180 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4181 } 4182 4183 /** 4184 * Hook to low-levels: Reporting the current status of encryption. 4185 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 4186 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 4187 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, or 4188 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 4189 */ 4190 private int getEncryptionStatus() { 4191 String status = mInjector.systemPropertiesGet("ro.crypto.state", "unsupported"); 4192 if ("encrypted".equalsIgnoreCase(status)) { 4193 final long token = mInjector.binderClearCallingIdentity(); 4194 try { 4195 return LockPatternUtils.isDeviceEncrypted() 4196 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4197 : DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 4198 } finally { 4199 mInjector.binderRestoreCallingIdentity(token); 4200 } 4201 } else if ("unencrypted".equalsIgnoreCase(status)) { 4202 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4203 } else { 4204 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4205 } 4206 } 4207 4208 /** 4209 * Hook to low-levels: If needed, record the new admin setting for encryption. 4210 */ 4211 private void setEncryptionRequested(boolean encrypt) { 4212 } 4213 4214 4215 /** 4216 * Set whether the screen capture is disabled for the user managed by the specified admin. 4217 */ 4218 @Override 4219 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 4220 if (!mHasFeature) { 4221 return; 4222 } 4223 Preconditions.checkNotNull(who, "ComponentName is null"); 4224 final int userHandle = UserHandle.getCallingUserId(); 4225 synchronized (this) { 4226 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4227 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4228 if (ap.disableScreenCapture != disabled) { 4229 ap.disableScreenCapture = disabled; 4230 saveSettingsLocked(userHandle); 4231 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 4232 } 4233 } 4234 } 4235 4236 /** 4237 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 4238 * active admin (if given admin is null). 4239 */ 4240 @Override 4241 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 4242 if (!mHasFeature) { 4243 return false; 4244 } 4245 synchronized (this) { 4246 if (who != null) { 4247 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4248 return (admin != null) ? admin.disableScreenCapture : false; 4249 } 4250 4251 DevicePolicyData policy = getUserData(userHandle); 4252 final int N = policy.mAdminList.size(); 4253 for (int i = 0; i < N; i++) { 4254 ActiveAdmin admin = policy.mAdminList.get(i); 4255 if (admin.disableScreenCapture) { 4256 return true; 4257 } 4258 } 4259 return false; 4260 } 4261 } 4262 4263 private void updateScreenCaptureDisabledInWindowManager(int userHandle, boolean disabled) { 4264 long ident = mInjector.binderClearCallingIdentity(); 4265 try { 4266 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 4267 } catch (RemoteException e) { 4268 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 4269 } finally { 4270 mInjector.binderRestoreCallingIdentity(ident); 4271 } 4272 } 4273 4274 /** 4275 * Set whether auto time is required by the specified admin (must be device owner). 4276 */ 4277 @Override 4278 public void setAutoTimeRequired(ComponentName who, boolean required) { 4279 if (!mHasFeature) { 4280 return; 4281 } 4282 Preconditions.checkNotNull(who, "ComponentName is null"); 4283 final int userHandle = UserHandle.getCallingUserId(); 4284 synchronized (this) { 4285 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4286 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4287 if (admin.requireAutoTime != required) { 4288 admin.requireAutoTime = required; 4289 saveSettingsLocked(userHandle); 4290 } 4291 } 4292 4293 // Turn AUTO_TIME on in settings if it is required 4294 if (required) { 4295 long ident = mInjector.binderClearCallingIdentity(); 4296 try { 4297 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 4298 } finally { 4299 mInjector.binderRestoreCallingIdentity(ident); 4300 } 4301 } 4302 } 4303 4304 /** 4305 * Returns whether or not auto time is required by the device owner. 4306 */ 4307 @Override 4308 public boolean getAutoTimeRequired() { 4309 if (!mHasFeature) { 4310 return false; 4311 } 4312 synchronized (this) { 4313 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4314 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 4315 } 4316 } 4317 4318 /** 4319 * Disables all device cameras according to the specified admin. 4320 */ 4321 @Override 4322 public void setCameraDisabled(ComponentName who, boolean disabled) { 4323 if (!mHasFeature) { 4324 return; 4325 } 4326 Preconditions.checkNotNull(who, "ComponentName is null"); 4327 final int userHandle = UserHandle.getCallingUserId(); 4328 synchronized (this) { 4329 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4330 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 4331 if (ap.disableCamera != disabled) { 4332 ap.disableCamera = disabled; 4333 saveSettingsLocked(userHandle); 4334 } 4335 } 4336 // Tell the user manager that the restrictions have changed. 4337 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 4338 synchronized (this) { 4339 if (isDeviceOwner(who)) { 4340 mUserManagerInternal.updateEffectiveUserRestrictionsForAllUsersRL(); 4341 } else { 4342 mUserManagerInternal.updateEffectiveUserRestrictionsRL(userHandle); 4343 } 4344 } 4345 } 4346 } 4347 4348 /** 4349 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 4350 * active admins. 4351 */ 4352 @Override 4353 public boolean getCameraDisabled(ComponentName who, int userHandle) { 4354 if (!mHasFeature) { 4355 return false; 4356 } 4357 synchronized (this) { 4358 if (who != null) { 4359 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4360 return (admin != null) ? admin.disableCamera : false; 4361 } 4362 // First, see if DO has set it. If so, it's device-wide. 4363 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4364 if (deviceOwner != null && deviceOwner.disableCamera) { 4365 return true; 4366 } 4367 4368 // Then check each device admin on the user. 4369 DevicePolicyData policy = getUserData(userHandle); 4370 // Determine whether or not the device camera is disabled for any active admins. 4371 final int N = policy.mAdminList.size(); 4372 for (int i = 0; i < N; i++) { 4373 ActiveAdmin admin = policy.mAdminList.get(i); 4374 if (admin.disableCamera) { 4375 return true; 4376 } 4377 } 4378 return false; 4379 } 4380 } 4381 4382 /** 4383 * Selectively disable keyguard features. 4384 */ 4385 @Override 4386 public void setKeyguardDisabledFeatures(ComponentName who, int which) { 4387 if (!mHasFeature) { 4388 return; 4389 } 4390 Preconditions.checkNotNull(who, "ComponentName is null"); 4391 final int userHandle = UserHandle.getCallingUserId(); 4392 if (isManagedProfile(userHandle)) { 4393 which = which & PROFILE_KEYGUARD_FEATURES; 4394 } 4395 synchronized (this) { 4396 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4397 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4398 if (ap.disabledKeyguardFeatures != which) { 4399 ap.disabledKeyguardFeatures = which; 4400 saveSettingsLocked(userHandle); 4401 } 4402 } 4403 } 4404 4405 /** 4406 * Gets the disabled state for features in keyguard for the given admin, 4407 * or the aggregate of all active admins if who is null. 4408 */ 4409 @Override 4410 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 4411 if (!mHasFeature) { 4412 return 0; 4413 } 4414 enforceCrossUserPermission(userHandle); 4415 long ident = mInjector.binderClearCallingIdentity(); 4416 try { 4417 synchronized (this) { 4418 if (who != null) { 4419 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4420 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 4421 } 4422 4423 UserInfo user = mUserManager.getUserInfo(userHandle); 4424 final List<UserInfo> profiles; 4425 if (user.isManagedProfile()) { 4426 // If we are being asked about a managed profile just return 4427 // keyguard features disabled by admins in the profile. 4428 profiles = new ArrayList<UserInfo>(1); 4429 profiles.add(user); 4430 } else { 4431 // Otherwise return those set by admins in the user 4432 // and its profiles. 4433 profiles = mUserManager.getProfiles(userHandle); 4434 } 4435 4436 // Determine which keyguard features are disabled by any active admin. 4437 int which = 0; 4438 for (UserInfo userInfo : profiles) { 4439 DevicePolicyData policy = getUserData(userInfo.id); 4440 final int N = policy.mAdminList.size(); 4441 for (int i = 0; i < N; i++) { 4442 ActiveAdmin admin = policy.mAdminList.get(i); 4443 if (userInfo.id == userHandle || !userInfo.isManagedProfile()) { 4444 // If we are being asked explictly about this user 4445 // return all disabled features even if its a managed profile. 4446 which |= admin.disabledKeyguardFeatures; 4447 } else { 4448 // Otherwise a managed profile is only allowed to disable 4449 // some features on the parent user. 4450 which |= (admin.disabledKeyguardFeatures 4451 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 4452 } 4453 } 4454 } 4455 return which; 4456 } 4457 } finally { 4458 mInjector.binderRestoreCallingIdentity(ident); 4459 } 4460 } 4461 4462 @Override 4463 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 4464 if (!mHasFeature) { 4465 return false; 4466 } 4467 if (admin == null 4468 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 4469 throw new IllegalArgumentException("Invalid component " + admin 4470 + " for device owner"); 4471 } 4472 synchronized (this) { 4473 enforceCanSetDeviceOwner(userId); 4474 4475 // Shutting down backup manager service permanently. 4476 long ident = mInjector.binderClearCallingIdentity(); 4477 try { 4478 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, false); 4479 } catch (RemoteException e) { 4480 throw new IllegalStateException("Failed deactivating backup service.", e); 4481 } finally { 4482 mInjector.binderRestoreCallingIdentity(ident); 4483 } 4484 4485 mOwners.setDeviceOwner(admin, ownerName, userId); 4486 mOwners.writeDeviceOwner(); 4487 updateDeviceOwnerLocked(); 4488 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 4489 4490 ident = mInjector.binderClearCallingIdentity(); 4491 try { 4492 // TODO Send to system too? 4493 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 4494 } finally { 4495 mInjector.binderRestoreCallingIdentity(ident); 4496 } 4497 return true; 4498 } 4499 } 4500 4501 public boolean isDeviceOwner(ComponentName who) { 4502 if (!mHasFeature) { 4503 return false; 4504 } 4505 synchronized (this) { 4506 return mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerComponent().equals(who); 4507 } 4508 } 4509 4510 @Override 4511 public boolean isDeviceOwnerPackage(String packageName) { 4512 if (!mHasFeature) { 4513 return false; 4514 } 4515 synchronized (this) { 4516 return mOwners.hasDeviceOwner() 4517 && mOwners.getDeviceOwnerComponent().getPackageName().equals(packageName); 4518 } 4519 } 4520 4521 @Override 4522 public ComponentName getDeviceOwner() { 4523 if (!mHasFeature) { 4524 return null; 4525 } 4526 synchronized (this) { 4527 return mOwners.getDeviceOwnerComponent(); 4528 } 4529 } 4530 4531 @Override 4532 public String getDeviceOwnerName() { 4533 if (!mHasFeature) { 4534 return null; 4535 } 4536 // TODO: Do we really need it? getDeviceOwner() doesn't require it. 4537 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4538 synchronized (this) { 4539 if (!mOwners.hasDeviceOwner()) { 4540 return null; 4541 } 4542 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 4543 // Should setDeviceOwner/ProfileOwner still take a name? 4544 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 4545 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 4546 } 4547 } 4548 4549 // Returns the active device owner or null if there is no device owner. 4550 @VisibleForTesting 4551 ActiveAdmin getDeviceOwnerAdminLocked() { 4552 ComponentName component = getDeviceOwner(); 4553 if (component == null) { 4554 return null; 4555 } 4556 4557 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 4558 final int n = policy.mAdminList.size(); 4559 for (int i = 0; i < n; i++) { 4560 ActiveAdmin admin = policy.mAdminList.get(i); 4561 if (component.equals(admin.info.getComponent())) { 4562 return admin; 4563 } 4564 } 4565 return null; 4566 } 4567 4568 @Override 4569 public void clearDeviceOwner(String packageName) { 4570 Preconditions.checkNotNull(packageName, "packageName is null"); 4571 final int callingUid = mInjector.binderGetCallingUid(); 4572 try { 4573 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 4574 if (uid != callingUid) { 4575 throw new SecurityException("Invalid packageName"); 4576 } 4577 } catch (NameNotFoundException e) { 4578 throw new SecurityException(e); 4579 } 4580 if (!mOwners.hasDeviceOwner() || !getDeviceOwner().getPackageName().equals(packageName) 4581 || (mOwners.getDeviceOwnerUserId() != UserHandle.getUserId(callingUid))) { 4582 throw new SecurityException("clearDeviceOwner can only be called by the device owner"); 4583 } 4584 synchronized (this) { 4585 clearUserPoliciesLocked(new UserHandle(UserHandle.USER_SYSTEM)); 4586 4587 mOwners.clearDeviceOwner(); 4588 mOwners.writeDeviceOwner(); 4589 updateDeviceOwnerLocked(); 4590 // Reactivate backup service. 4591 long ident = mInjector.binderClearCallingIdentity(); 4592 try { 4593 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 4594 } catch (RemoteException e) { 4595 throw new IllegalStateException("Failed reactivating backup service.", e); 4596 } finally { 4597 mInjector.binderRestoreCallingIdentity(ident); 4598 } 4599 } 4600 } 4601 4602 @Override 4603 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 4604 if (!mHasFeature) { 4605 return false; 4606 } 4607 if (who == null 4608 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 4609 throw new IllegalArgumentException("Component " + who 4610 + " not installed for userId:" + userHandle); 4611 } 4612 synchronized (this) { 4613 enforceCanSetProfileOwner(userHandle); 4614 mOwners.setProfileOwner(who, ownerName, userHandle); 4615 mOwners.writeProfileOwner(userHandle); 4616 return true; 4617 } 4618 } 4619 4620 @Override 4621 public void clearProfileOwner(ComponentName who) { 4622 if (!mHasFeature) { 4623 return; 4624 } 4625 UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 4626 // Check if this is the profile owner who is calling 4627 final ActiveAdmin admin = 4628 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4629 synchronized (this) { 4630 admin.userRestrictions = null; 4631 clearUserPoliciesLocked(callingUser); 4632 final int userId = callingUser.getIdentifier(); 4633 mOwners.removeProfileOwner(userId); 4634 mOwners.writeProfileOwner(userId); 4635 } 4636 } 4637 4638 private void clearUserPoliciesLocked(UserHandle userHandle) { 4639 int userId = userHandle.getIdentifier(); 4640 // Reset some of the user-specific policies 4641 DevicePolicyData policy = getUserData(userId); 4642 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 4643 policy.mDelegatedCertInstallerPackage = null; 4644 policy.mStatusBarDisabled = false; 4645 saveSettingsLocked(userId); 4646 4647 final long ident = mInjector.binderClearCallingIdentity(); 4648 try { 4649 mIPackageManager.updatePermissionFlagsForAllApps( 4650 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 4651 0 /* flagValues */, userHandle.getIdentifier()); 4652 // TODO This will not revert audio mute restrictions if they were set. b/24981972 4653 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 4654 mUserManagerInternal.updateEffectiveUserRestrictionsRL(userHandle.getIdentifier()); 4655 } 4656 } catch (RemoteException re) { 4657 } finally { 4658 mInjector.binderRestoreCallingIdentity(ident); 4659 } 4660 } 4661 4662 @Override 4663 public boolean hasUserSetupCompleted() { 4664 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 4665 } 4666 4667 private boolean hasUserSetupCompleted(int userHandle) { 4668 if (!mHasFeature) { 4669 return true; 4670 } 4671 return getUserData(userHandle).mUserSetupComplete; 4672 } 4673 4674 @Override 4675 public void setProfileEnabled(ComponentName who) { 4676 if (!mHasFeature) { 4677 return; 4678 } 4679 Preconditions.checkNotNull(who, "ComponentName is null"); 4680 final int userHandle = UserHandle.getCallingUserId(); 4681 synchronized (this) { 4682 // Check if this is the profile owner who is calling 4683 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4684 int userId = UserHandle.getCallingUserId(); 4685 4686 long id = mInjector.binderClearCallingIdentity(); 4687 try { 4688 mUserManager.setUserEnabled(userId); 4689 UserInfo parent = mUserManager.getProfileParent(userId); 4690 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 4691 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 4692 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 4693 Intent.FLAG_RECEIVER_FOREGROUND); 4694 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 4695 } finally { 4696 mInjector.binderRestoreCallingIdentity(id); 4697 } 4698 } 4699 } 4700 4701 @Override 4702 public void setProfileName(ComponentName who, String profileName) { 4703 Preconditions.checkNotNull(who, "ComponentName is null"); 4704 int userId = UserHandle.getCallingUserId(); 4705 // Check if this is the profile owner (includes device owner). 4706 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4707 4708 long id = mInjector.binderClearCallingIdentity(); 4709 try { 4710 mUserManager.setUserName(userId, profileName); 4711 } finally { 4712 mInjector.binderRestoreCallingIdentity(id); 4713 } 4714 } 4715 4716 @Override 4717 public ComponentName getProfileOwner(int userHandle) { 4718 if (!mHasFeature) { 4719 return null; 4720 } 4721 4722 synchronized (this) { 4723 return mOwners.getProfileOwnerComponent(userHandle); 4724 } 4725 } 4726 4727 // Returns the active profile owner for this user or null if the current user has no 4728 // profile owner. 4729 @VisibleForTesting 4730 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 4731 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 4732 if (profileOwner == null) { 4733 return null; 4734 } 4735 DevicePolicyData policy = getUserData(userHandle); 4736 final int n = policy.mAdminList.size(); 4737 for (int i = 0; i < n; i++) { 4738 ActiveAdmin admin = policy.mAdminList.get(i); 4739 if (profileOwner.equals(admin.info.getComponent())) { 4740 return admin; 4741 } 4742 } 4743 return null; 4744 } 4745 4746 @Override 4747 public String getProfileOwnerName(int userHandle) { 4748 if (!mHasFeature) { 4749 return null; 4750 } 4751 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4752 ComponentName profileOwner = getProfileOwner(userHandle); 4753 if (profileOwner == null) { 4754 return null; 4755 } 4756 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 4757 } 4758 4759 /** 4760 * Canonical name for a given package. 4761 */ 4762 private String getApplicationLabel(String packageName, int userHandle) { 4763 long token = mInjector.binderClearCallingIdentity(); 4764 try { 4765 final Context userContext; 4766 try { 4767 UserHandle handle = new UserHandle(userHandle); 4768 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 4769 } catch (PackageManager.NameNotFoundException nnfe) { 4770 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 4771 return null; 4772 } 4773 ApplicationInfo appInfo = userContext.getApplicationInfo(); 4774 CharSequence result = null; 4775 if (appInfo != null) { 4776 PackageManager pm = userContext.getPackageManager(); 4777 result = pm.getApplicationLabel(appInfo); 4778 } 4779 return result != null ? result.toString() : null; 4780 } finally { 4781 mInjector.binderRestoreCallingIdentity(token); 4782 } 4783 } 4784 4785 /** 4786 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4787 * permission. 4788 * The profile owner can only be set before the user setup phase has completed, 4789 * except for: 4790 * - SYSTEM_UID 4791 * - adb if there are not accounts. 4792 */ 4793 private void enforceCanSetProfileOwner(int userHandle) { 4794 UserInfo info = mUserManager.getUserInfo(userHandle); 4795 if (info == null) { 4796 // User doesn't exist. 4797 throw new IllegalArgumentException( 4798 "Attempted to set profile owner for invalid userId: " + userHandle); 4799 } 4800 if (info.isGuest()) { 4801 throw new IllegalStateException("Cannot set a profile owner on a guest"); 4802 } 4803 if (getProfileOwner(userHandle) != null) { 4804 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 4805 + "is already set."); 4806 } 4807 int callingUid = mInjector.binderGetCallingUid(); 4808 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 4809 if (hasUserSetupCompleted(userHandle) && 4810 AccountManager.get(mContext).getAccountsAsUser(userHandle).length > 0) { 4811 throw new IllegalStateException("Not allowed to set the profile owner because " 4812 + "there are already some accounts on the profile"); 4813 } 4814 return; 4815 } 4816 mContext.enforceCallingOrSelfPermission( 4817 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 4818 if (hasUserSetupCompleted(userHandle) 4819 && UserHandle.getAppId(callingUid) != Process.SYSTEM_UID) { 4820 throw new IllegalStateException("Cannot set the profile owner on a user which is " 4821 + "already set-up"); 4822 } 4823 } 4824 4825 /** 4826 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4827 * permission. 4828 * The device owner can only be set before the setup phase of the primary user has completed, 4829 * except for adb if no accounts or additional users are present on the device. 4830 */ 4831 private void enforceCanSetDeviceOwner(int userId) { 4832 if (mOwners.hasDeviceOwner()) { 4833 throw new IllegalStateException("Trying to set the device owner, but device owner " 4834 + "is already set."); 4835 } 4836 if (!mUserManager.isUserRunning(new UserHandle(userId))) { 4837 throw new IllegalStateException("User not running: " + userId); 4838 } 4839 4840 int callingUid = mInjector.binderGetCallingUid(); 4841 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 4842 if (!hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 4843 return; 4844 } 4845 // STOPSHIP Do proper check in split user mode 4846 if (!mInjector.userManagerIsSplitSystemUser()) { 4847 if (mUserManager.getUserCount() > 1) { 4848 throw new IllegalStateException( 4849 "Not allowed to set the device owner because there " 4850 + "are already several users on the device"); 4851 } 4852 if (AccountManager.get(mContext).getAccounts().length > 0) { 4853 throw new IllegalStateException( 4854 "Not allowed to set the device owner because there " 4855 + "are already some accounts on the device"); 4856 } 4857 } 4858 return; 4859 } 4860 // STOPSHIP check the caller UID with userId 4861 4862 mContext.enforceCallingOrSelfPermission( 4863 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 4864 // STOPSHIP Do proper check in split user mode 4865 if (!mInjector.userManagerIsSplitSystemUser()) { 4866 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 4867 throw new IllegalStateException("Cannot set the device owner if the device is " 4868 + "already set-up"); 4869 } 4870 } 4871 } 4872 4873 private void enforceCrossUserPermission(int userHandle) { 4874 if (userHandle < 0) { 4875 throw new IllegalArgumentException("Invalid userId " + userHandle); 4876 } 4877 final int callingUid = mInjector.binderGetCallingUid(); 4878 if (userHandle == UserHandle.getUserId(callingUid)) return; 4879 if (callingUid != Process.SYSTEM_UID && callingUid != 0) { 4880 mContext.enforceCallingOrSelfPermission( 4881 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 4882 + " INTERACT_ACROSS_USERS_FULL permission"); 4883 } 4884 } 4885 4886 private void enforceNotManagedProfile(int userHandle, String message) { 4887 if(isManagedProfile(userHandle)) { 4888 throw new SecurityException("You can not " + message + " for a managed profile. "); 4889 } 4890 } 4891 4892 private UserInfo getProfileParent(int userHandle) { 4893 long ident = mInjector.binderClearCallingIdentity(); 4894 try { 4895 return mUserManager.getProfileParent(userHandle); 4896 } finally { 4897 mInjector.binderRestoreCallingIdentity(ident); 4898 } 4899 } 4900 4901 private boolean isManagedProfile(int userHandle) { 4902 long ident = mInjector.binderClearCallingIdentity(); 4903 try { 4904 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 4905 } finally { 4906 mInjector.binderRestoreCallingIdentity(ident); 4907 } 4908 } 4909 4910 private void enableIfNecessary(String packageName, int userId) { 4911 try { 4912 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 4913 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 4914 userId); 4915 if (ai.enabledSetting 4916 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 4917 mIPackageManager.setApplicationEnabledSetting(packageName, 4918 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 4919 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 4920 } 4921 } catch (RemoteException e) { 4922 } 4923 } 4924 4925 @Override 4926 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 4927 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 4928 != PackageManager.PERMISSION_GRANTED) { 4929 4930 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 4931 + mInjector.binderGetCallingPid() 4932 + ", uid=" + mInjector.binderGetCallingUid()); 4933 return; 4934 } 4935 4936 final Printer p = new PrintWriterPrinter(pw); 4937 4938 synchronized (this) { 4939 p.println("Current Device Policy Manager state:"); 4940 mOwners.dump(" ", pw); 4941 int userCount = mUserData.size(); 4942 for (int u = 0; u < userCount; u++) { 4943 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 4944 p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 4945 final int N = policy.mAdminList.size(); 4946 for (int i=0; i<N; i++) { 4947 ActiveAdmin ap = policy.mAdminList.get(i); 4948 if (ap != null) { 4949 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 4950 pw.println(":"); 4951 ap.dump(" ", pw); 4952 } 4953 } 4954 if (!policy.mRemovingAdmins.isEmpty()) { 4955 p.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 4956 + policy.mRemovingAdmins); 4957 } 4958 4959 pw.println(" "); 4960 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 4961 } 4962 } 4963 } 4964 4965 @Override 4966 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 4967 ComponentName activity) { 4968 Preconditions.checkNotNull(who, "ComponentName is null"); 4969 final int userHandle = UserHandle.getCallingUserId(); 4970 synchronized (this) { 4971 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4972 4973 long id = mInjector.binderClearCallingIdentity(); 4974 try { 4975 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 4976 } catch (RemoteException re) { 4977 // Shouldn't happen 4978 } finally { 4979 mInjector.binderRestoreCallingIdentity(id); 4980 } 4981 } 4982 } 4983 4984 @Override 4985 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 4986 Preconditions.checkNotNull(who, "ComponentName is null"); 4987 final int userHandle = UserHandle.getCallingUserId(); 4988 synchronized (this) { 4989 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4990 4991 long id = mInjector.binderClearCallingIdentity(); 4992 try { 4993 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 4994 } catch (RemoteException re) { 4995 // Shouldn't happen 4996 } finally { 4997 mInjector.binderRestoreCallingIdentity(id); 4998 } 4999 } 5000 } 5001 5002 @Override 5003 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 5004 Preconditions.checkNotNull(who, "ComponentName is null"); 5005 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5006 synchronized (this) { 5007 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5008 5009 long id = mInjector.binderClearCallingIdentity(); 5010 try { 5011 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 5012 } finally { 5013 mInjector.binderRestoreCallingIdentity(id); 5014 } 5015 } 5016 } 5017 5018 @Override 5019 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 5020 PersistableBundle args) { 5021 if (!mHasFeature) { 5022 return; 5023 } 5024 Preconditions.checkNotNull(admin, "admin is null"); 5025 Preconditions.checkNotNull(agent, "agent is null"); 5026 final int userHandle = UserHandle.getCallingUserId(); 5027 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 5028 synchronized (this) { 5029 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 5030 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 5031 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 5032 saveSettingsLocked(userHandle); 5033 } 5034 } 5035 5036 @Override 5037 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 5038 ComponentName agent, int userHandle) { 5039 if (!mHasFeature) { 5040 return null; 5041 } 5042 Preconditions.checkNotNull(agent, "agent null"); 5043 enforceCrossUserPermission(userHandle); 5044 5045 synchronized (this) { 5046 final String componentName = agent.flattenToString(); 5047 if (admin != null) { 5048 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 5049 if (ap == null) return null; 5050 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 5051 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 5052 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 5053 result.add(trustAgentInfo.options); 5054 return result; 5055 } 5056 5057 // Return strictest policy for this user and profiles that are visible from this user. 5058 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 5059 List<PersistableBundle> result = null; 5060 5061 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 5062 // of the options. If any admin doesn't have options, discard options for the rest 5063 // and return null. 5064 boolean allAdminsHaveOptions = true; 5065 for (UserInfo userInfo : profiles) { 5066 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 5067 final int N = policy.mAdminList.size(); 5068 for (int i=0; i < N; i++) { 5069 final ActiveAdmin active = policy.mAdminList.get(i); 5070 final boolean disablesTrust = (active.disabledKeyguardFeatures 5071 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 5072 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 5073 if (info != null && info.options != null && !info.options.isEmpty()) { 5074 if (disablesTrust) { 5075 if (result == null) { 5076 result = new ArrayList<PersistableBundle>(); 5077 } 5078 result.add(info.options); 5079 } else { 5080 Log.w(LOG_TAG, "Ignoring admin " + active.info 5081 + " because it has trust options but doesn't declare " 5082 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 5083 } 5084 } else if (disablesTrust) { 5085 allAdminsHaveOptions = false; 5086 break; 5087 } 5088 } 5089 } 5090 return allAdminsHaveOptions ? result : null; 5091 } 5092 } 5093 5094 @Override 5095 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 5096 Preconditions.checkNotNull(who, "ComponentName is null"); 5097 synchronized (this) { 5098 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5099 5100 int userHandle = UserHandle.getCallingUserId(); 5101 DevicePolicyData userData = getUserData(userHandle); 5102 userData.mRestrictionsProvider = permissionProvider; 5103 saveSettingsLocked(userHandle); 5104 } 5105 } 5106 5107 @Override 5108 public ComponentName getRestrictionsProvider(int userHandle) { 5109 synchronized (this) { 5110 if (mInjector.binderGetCallingUid() != Process.SYSTEM_UID) { 5111 throw new SecurityException("Only the system can query the permission provider"); 5112 } 5113 DevicePolicyData userData = getUserData(userHandle); 5114 return userData != null ? userData.mRestrictionsProvider : null; 5115 } 5116 } 5117 5118 @Override 5119 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 5120 Preconditions.checkNotNull(who, "ComponentName is null"); 5121 int callingUserId = UserHandle.getCallingUserId(); 5122 synchronized (this) { 5123 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5124 5125 long id = mInjector.binderClearCallingIdentity(); 5126 try { 5127 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5128 if (parent == null) { 5129 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 5130 + "parent"); 5131 return; 5132 } 5133 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 5134 mIPackageManager.addCrossProfileIntentFilter( 5135 filter, who.getPackageName(), callingUserId, parent.id, 0); 5136 } 5137 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 5138 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 5139 parent.id, callingUserId, 0); 5140 } 5141 } catch (RemoteException re) { 5142 // Shouldn't happen 5143 } finally { 5144 mInjector.binderRestoreCallingIdentity(id); 5145 } 5146 } 5147 } 5148 5149 @Override 5150 public void clearCrossProfileIntentFilters(ComponentName who) { 5151 Preconditions.checkNotNull(who, "ComponentName is null"); 5152 int callingUserId = UserHandle.getCallingUserId(); 5153 synchronized (this) { 5154 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5155 long id = mInjector.binderClearCallingIdentity(); 5156 try { 5157 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5158 if (parent == null) { 5159 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 5160 + "parent"); 5161 return; 5162 } 5163 // Removing those that go from the managed profile to the parent. 5164 mIPackageManager.clearCrossProfileIntentFilters( 5165 callingUserId, who.getPackageName()); 5166 // And those that go from the parent to the managed profile. 5167 // If we want to support multiple managed profiles, we will have to only remove 5168 // those that have callingUserId as their target. 5169 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 5170 } catch (RemoteException re) { 5171 // Shouldn't happen 5172 } finally { 5173 mInjector.binderRestoreCallingIdentity(id); 5174 } 5175 } 5176 } 5177 5178 /** 5179 * @return true if all packages in enabledPackages are either in the list 5180 * permittedList or are a system app. 5181 */ 5182 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 5183 List<String> permittedList) { 5184 int userIdToCheck = UserHandle.getCallingUserId(); 5185 long id = mInjector.binderClearCallingIdentity(); 5186 try { 5187 // If we have an enabled packages list for a managed profile the packages 5188 // we should check are installed for the parent user. 5189 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 5190 if (user.isManagedProfile()) { 5191 userIdToCheck = user.profileGroupId; 5192 } 5193 5194 for (String enabledPackage : enabledPackages) { 5195 boolean systemService = false; 5196 try { 5197 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 5198 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 5199 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5200 } catch (RemoteException e) { 5201 Log.i(LOG_TAG, "Can't talk to package managed", e); 5202 } 5203 if (!systemService && !permittedList.contains(enabledPackage)) { 5204 return false; 5205 } 5206 } 5207 } finally { 5208 mInjector.binderRestoreCallingIdentity(id); 5209 } 5210 return true; 5211 } 5212 5213 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 5214 // Not using AccessibilityManager.getInstance because that guesses 5215 // at the user you require based on callingUid and caches for a given 5216 // process. 5217 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 5218 IAccessibilityManager service = iBinder == null 5219 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 5220 return new AccessibilityManager(mContext, service, userId); 5221 } 5222 5223 @Override 5224 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 5225 if (!mHasFeature) { 5226 return false; 5227 } 5228 Preconditions.checkNotNull(who, "ComponentName is null"); 5229 5230 if (packageList != null) { 5231 int userId = UserHandle.getCallingUserId(); 5232 List<AccessibilityServiceInfo> enabledServices = null; 5233 long id = mInjector.binderClearCallingIdentity(); 5234 try { 5235 UserInfo user = mUserManager.getUserInfo(userId); 5236 if (user.isManagedProfile()) { 5237 userId = user.profileGroupId; 5238 } 5239 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 5240 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 5241 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 5242 } finally { 5243 mInjector.binderRestoreCallingIdentity(id); 5244 } 5245 5246 if (enabledServices != null) { 5247 List<String> enabledPackages = new ArrayList<String>(); 5248 for (AccessibilityServiceInfo service : enabledServices) { 5249 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 5250 } 5251 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5252 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 5253 + "because it contains already enabled accesibility services."); 5254 return false; 5255 } 5256 } 5257 } 5258 5259 synchronized (this) { 5260 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5261 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5262 admin.permittedAccessiblityServices = packageList; 5263 saveSettingsLocked(UserHandle.getCallingUserId()); 5264 } 5265 return true; 5266 } 5267 5268 @Override 5269 public List getPermittedAccessibilityServices(ComponentName who) { 5270 if (!mHasFeature) { 5271 return null; 5272 } 5273 Preconditions.checkNotNull(who, "ComponentName is null"); 5274 5275 synchronized (this) { 5276 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5277 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5278 return admin.permittedAccessiblityServices; 5279 } 5280 } 5281 5282 @Override 5283 public List getPermittedAccessibilityServicesForUser(int userId) { 5284 if (!mHasFeature) { 5285 return null; 5286 } 5287 synchronized (this) { 5288 List<String> result = null; 5289 // If we have multiple profiles we return the intersection of the 5290 // permitted lists. This can happen in cases where we have a device 5291 // and profile owner. 5292 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5293 final int PROFILES_SIZE = profiles.size(); 5294 for (int i = 0; i < PROFILES_SIZE; ++i) { 5295 // Just loop though all admins, only device or profiles 5296 // owners can have permitted lists set. 5297 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5298 final int N = policy.mAdminList.size(); 5299 for (int j = 0; j < N; j++) { 5300 ActiveAdmin admin = policy.mAdminList.get(j); 5301 List<String> fromAdmin = admin.permittedAccessiblityServices; 5302 if (fromAdmin != null) { 5303 if (result == null) { 5304 result = new ArrayList<String>(fromAdmin); 5305 } else { 5306 result.retainAll(fromAdmin); 5307 } 5308 } 5309 } 5310 } 5311 5312 // If we have a permitted list add all system accessibility services. 5313 if (result != null) { 5314 long id = mInjector.binderClearCallingIdentity(); 5315 try { 5316 UserInfo user = mUserManager.getUserInfo(userId); 5317 if (user.isManagedProfile()) { 5318 userId = user.profileGroupId; 5319 } 5320 AccessibilityManager accessibilityManager = 5321 getAccessibilityManagerForUser(userId); 5322 List<AccessibilityServiceInfo> installedServices = 5323 accessibilityManager.getInstalledAccessibilityServiceList(); 5324 5325 if (installedServices != null) { 5326 for (AccessibilityServiceInfo service : installedServices) { 5327 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 5328 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5329 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5330 result.add(serviceInfo.packageName); 5331 } 5332 } 5333 } 5334 } finally { 5335 mInjector.binderRestoreCallingIdentity(id); 5336 } 5337 } 5338 5339 return result; 5340 } 5341 } 5342 5343 private boolean checkCallerIsCurrentUserOrProfile() { 5344 int callingUserId = UserHandle.getCallingUserId(); 5345 long token = mInjector.binderClearCallingIdentity(); 5346 try { 5347 UserInfo currentUser; 5348 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 5349 try { 5350 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5351 } catch (RemoteException e) { 5352 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 5353 return false; 5354 } 5355 5356 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 5357 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 5358 + "of a user that isn't the foreground user."); 5359 return false; 5360 } 5361 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 5362 Slog.e(LOG_TAG, "Cannot set permitted input methods " 5363 + "of a user that isn't the foreground user."); 5364 return false; 5365 } 5366 } finally { 5367 mInjector.binderRestoreCallingIdentity(token); 5368 } 5369 return true; 5370 } 5371 5372 @Override 5373 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 5374 if (!mHasFeature) { 5375 return false; 5376 } 5377 Preconditions.checkNotNull(who, "ComponentName is null"); 5378 5379 // TODO When InputMethodManager supports per user calls remove 5380 // this restriction. 5381 if (!checkCallerIsCurrentUserOrProfile()) { 5382 return false; 5383 } 5384 5385 if (packageList != null) { 5386 // InputMethodManager fetches input methods for current user. 5387 // So this can only be set when calling user is the current user 5388 // or parent is current user in case of managed profiles. 5389 InputMethodManager inputMethodManager = (InputMethodManager) mContext 5390 .getSystemService(Context.INPUT_METHOD_SERVICE); 5391 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 5392 5393 if (enabledImes != null) { 5394 List<String> enabledPackages = new ArrayList<String>(); 5395 for (InputMethodInfo ime : enabledImes) { 5396 enabledPackages.add(ime.getPackageName()); 5397 } 5398 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5399 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 5400 + "because it contains already enabled input method."); 5401 return false; 5402 } 5403 } 5404 } 5405 5406 synchronized (this) { 5407 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5408 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5409 admin.permittedInputMethods = packageList; 5410 saveSettingsLocked(UserHandle.getCallingUserId()); 5411 } 5412 return true; 5413 } 5414 5415 @Override 5416 public List getPermittedInputMethods(ComponentName who) { 5417 if (!mHasFeature) { 5418 return null; 5419 } 5420 Preconditions.checkNotNull(who, "ComponentName is null"); 5421 5422 synchronized (this) { 5423 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5424 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5425 return admin.permittedInputMethods; 5426 } 5427 } 5428 5429 @Override 5430 public List getPermittedInputMethodsForCurrentUser() { 5431 UserInfo currentUser; 5432 try { 5433 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5434 } catch (RemoteException e) { 5435 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 5436 // Activity managed is dead, just allow all IMEs 5437 return null; 5438 } 5439 5440 int userId = currentUser.id; 5441 synchronized (this) { 5442 List<String> result = null; 5443 // If we have multiple profiles we return the intersection of the 5444 // permitted lists. This can happen in cases where we have a device 5445 // and profile owner. 5446 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5447 final int PROFILES_SIZE = profiles.size(); 5448 for (int i = 0; i < PROFILES_SIZE; ++i) { 5449 // Just loop though all admins, only device or profiles 5450 // owners can have permitted lists set. 5451 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5452 final int N = policy.mAdminList.size(); 5453 for (int j = 0; j < N; j++) { 5454 ActiveAdmin admin = policy.mAdminList.get(j); 5455 List<String> fromAdmin = admin.permittedInputMethods; 5456 if (fromAdmin != null) { 5457 if (result == null) { 5458 result = new ArrayList<String>(fromAdmin); 5459 } else { 5460 result.retainAll(fromAdmin); 5461 } 5462 } 5463 } 5464 } 5465 5466 // If we have a permitted list add all system input methods. 5467 if (result != null) { 5468 InputMethodManager inputMethodManager = (InputMethodManager) mContext 5469 .getSystemService(Context.INPUT_METHOD_SERVICE); 5470 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 5471 long id = mInjector.binderClearCallingIdentity(); 5472 try { 5473 if (imes != null) { 5474 for (InputMethodInfo ime : imes) { 5475 ServiceInfo serviceInfo = ime.getServiceInfo(); 5476 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5477 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5478 result.add(serviceInfo.packageName); 5479 } 5480 } 5481 } 5482 } finally { 5483 mInjector.binderRestoreCallingIdentity(id); 5484 } 5485 } 5486 return result; 5487 } 5488 } 5489 5490 @Override 5491 public UserHandle createUser(ComponentName who, String name) { 5492 Preconditions.checkNotNull(who, "ComponentName is null"); 5493 synchronized (this) { 5494 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5495 5496 long id = mInjector.binderClearCallingIdentity(); 5497 try { 5498 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 5499 if (userInfo != null) { 5500 return userInfo.getUserHandle(); 5501 } 5502 return null; 5503 } finally { 5504 mInjector.binderRestoreCallingIdentity(id); 5505 } 5506 } 5507 } 5508 5509 @Override 5510 public UserHandle createAndInitializeUser(ComponentName who, String name, 5511 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 5512 UserHandle user = createUser(who, name); 5513 if (user == null) { 5514 return null; 5515 } 5516 long id = mInjector.binderClearCallingIdentity(); 5517 try { 5518 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 5519 5520 final int userHandle = user.getIdentifier(); 5521 try { 5522 // Install the profile owner if not present. 5523 if (!mIPackageManager.isPackageAvailable(profileOwnerPkg, userHandle)) { 5524 mIPackageManager.installExistingPackageAsUser(profileOwnerPkg, userHandle); 5525 } 5526 5527 // Start user in background. 5528 mInjector.getIActivityManager().startUserInBackground(userHandle); 5529 } catch (RemoteException e) { 5530 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 5531 } 5532 5533 setActiveAdmin(profileOwnerComponent, true, userHandle, adminExtras); 5534 setProfileOwner(profileOwnerComponent, ownerName, userHandle); 5535 return user; 5536 } finally { 5537 mInjector.binderRestoreCallingIdentity(id); 5538 } 5539 } 5540 5541 @Override 5542 public boolean removeUser(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 = mInjector.binderClearCallingIdentity(); 5548 try { 5549 return mUserManager.removeUser(userHandle.getIdentifier()); 5550 } finally { 5551 mInjector.binderRestoreCallingIdentity(id); 5552 } 5553 } 5554 } 5555 5556 @Override 5557 public boolean switchUser(ComponentName who, UserHandle userHandle) { 5558 Preconditions.checkNotNull(who, "ComponentName is null"); 5559 synchronized (this) { 5560 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5561 5562 long id = mInjector.binderClearCallingIdentity(); 5563 try { 5564 int userId = UserHandle.USER_SYSTEM; 5565 if (userHandle != null) { 5566 userId = userHandle.getIdentifier(); 5567 } 5568 return mInjector.getIActivityManager().switchUser(userId); 5569 } catch (RemoteException e) { 5570 Log.e(LOG_TAG, "Couldn't switch user", e); 5571 return false; 5572 } finally { 5573 mInjector.binderRestoreCallingIdentity(id); 5574 } 5575 } 5576 } 5577 5578 @Override 5579 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 5580 Preconditions.checkNotNull(who, "ComponentName is null"); 5581 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5582 5583 synchronized (this) { 5584 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5585 5586 long id = mInjector.binderClearCallingIdentity(); 5587 try { 5588 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 5589 // if no restrictions were saved, mUserManager.getApplicationRestrictions 5590 // returns null, but DPM method should return an empty Bundle as per JavaDoc 5591 return bundle != null ? bundle : Bundle.EMPTY; 5592 } finally { 5593 mInjector.binderRestoreCallingIdentity(id); 5594 } 5595 } 5596 } 5597 5598 // DO NOT call it while taking the "this" lock, which could cause a dead lock. 5599 @Override 5600 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 5601 Preconditions.checkNotNull(who, "ComponentName is null"); 5602 final int userHandle = mInjector.userHandleGetCallingUserId(); 5603 final UserHandle user = new UserHandle(userHandle); 5604 synchronized (mUserManagerInternal.getUserRestrictionsLock()) { 5605 synchronized (this) { 5606 ActiveAdmin activeAdmin = 5607 getActiveAdminForCallerLocked(who, 5608 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5609 final boolean isDeviceOwner = isDeviceOwner(who); 5610 if (!isDeviceOwner && userHandle != UserHandle.USER_SYSTEM 5611 && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) { 5612 throw new SecurityException( 5613 "Profile owners cannot set user restriction " + key); 5614 } 5615 if (IMMUTABLE_USER_RESTRICTIONS.contains(key)) { 5616 throw new SecurityException("User restriction " + key + " cannot be changed"); 5617 } 5618 5619 final long id = mInjector.binderClearCallingIdentity(); 5620 try { 5621 // Save the restriction to ActiveAdmin. 5622 // TODO When DO sets a restriction, it'll always be treated as device-wide. 5623 // If there'll be a policy that can be set by both, we'll need scoping support, 5624 // and need to have another Bundle in DO active admin to hold restrictions as 5625 // PO. 5626 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 5627 saveSettingsLocked(userHandle); 5628 5629 // Tell UserManager the new value. 5630 if (isDeviceOwner) { 5631 mUserManagerInternal.updateEffectiveUserRestrictionsForAllUsersRL(); 5632 } else { 5633 mUserManagerInternal.updateEffectiveUserRestrictionsRL(userHandle); 5634 } 5635 } finally { 5636 mInjector.binderRestoreCallingIdentity(id); 5637 } 5638 5639 sendChangedNotification(userHandle); 5640 } 5641 } 5642 } 5643 5644 @Override 5645 public boolean setApplicationHidden(ComponentName who, String packageName, 5646 boolean hidden) { 5647 Preconditions.checkNotNull(who, "ComponentName is null"); 5648 int callingUserId = UserHandle.getCallingUserId(); 5649 synchronized (this) { 5650 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5651 5652 long id = mInjector.binderClearCallingIdentity(); 5653 try { 5654 return mIPackageManager.setApplicationHiddenSettingAsUser( 5655 packageName, hidden, callingUserId); 5656 } catch (RemoteException re) { 5657 // shouldn't happen 5658 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 5659 } finally { 5660 mInjector.binderRestoreCallingIdentity(id); 5661 } 5662 return false; 5663 } 5664 } 5665 5666 @Override 5667 public boolean isApplicationHidden(ComponentName who, String packageName) { 5668 Preconditions.checkNotNull(who, "ComponentName is null"); 5669 int callingUserId = UserHandle.getCallingUserId(); 5670 synchronized (this) { 5671 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5672 5673 long id = mInjector.binderClearCallingIdentity(); 5674 try { 5675 return mIPackageManager.getApplicationHiddenSettingAsUser( 5676 packageName, callingUserId); 5677 } catch (RemoteException re) { 5678 // shouldn't happen 5679 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 5680 } finally { 5681 mInjector.binderRestoreCallingIdentity(id); 5682 } 5683 return false; 5684 } 5685 } 5686 5687 @Override 5688 public void enableSystemApp(ComponentName who, String packageName) { 5689 Preconditions.checkNotNull(who, "ComponentName is null"); 5690 synchronized (this) { 5691 // This API can only be called by an active device admin, 5692 // so try to retrieve it to check that the caller is one. 5693 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5694 5695 int userId = UserHandle.getCallingUserId(); 5696 long id = mInjector.binderClearCallingIdentity(); 5697 5698 try { 5699 if (VERBOSE_LOG) { 5700 Slog.v(LOG_TAG, "installing " + packageName + " for " 5701 + userId); 5702 } 5703 5704 UserManager um = UserManager.get(mContext); 5705 UserInfo primaryUser = um.getProfileParent(userId); 5706 5707 // Call did not come from a managed profile 5708 if (primaryUser == null) { 5709 primaryUser = um.getUserInfo(userId); 5710 } 5711 5712 if (!isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 5713 throw new IllegalArgumentException("Only system apps can be enabled this way."); 5714 } 5715 5716 // Install the app. 5717 mIPackageManager.installExistingPackageAsUser(packageName, userId); 5718 5719 } catch (RemoteException re) { 5720 // shouldn't happen 5721 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 5722 } finally { 5723 mInjector.binderRestoreCallingIdentity(id); 5724 } 5725 } 5726 } 5727 5728 @Override 5729 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 5730 Preconditions.checkNotNull(who, "ComponentName is null"); 5731 synchronized (this) { 5732 // This API can only be called by an active device admin, 5733 // so try to retrieve it to check that the caller is one. 5734 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5735 5736 int userId = UserHandle.getCallingUserId(); 5737 long id = mInjector.binderClearCallingIdentity(); 5738 5739 try { 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 List<ResolveInfo> activitiesToEnable = mIPackageManager.queryIntentActivities( 5749 intent, 5750 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 5751 0, // no flags 5752 primaryUser.id); 5753 5754 if (VERBOSE_LOG) { 5755 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 5756 } 5757 int numberOfAppsInstalled = 0; 5758 if (activitiesToEnable != null) { 5759 for (ResolveInfo info : activitiesToEnable) { 5760 if (info.activityInfo != null) { 5761 String packageName = info.activityInfo.packageName; 5762 if (isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 5763 numberOfAppsInstalled++; 5764 mIPackageManager.installExistingPackageAsUser(packageName, userId); 5765 } else { 5766 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 5767 + " system app"); 5768 } 5769 } 5770 } 5771 } 5772 return numberOfAppsInstalled; 5773 } catch (RemoteException e) { 5774 // shouldn't happen 5775 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 5776 return 0; 5777 } finally { 5778 mInjector.binderRestoreCallingIdentity(id); 5779 } 5780 } 5781 } 5782 5783 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 5784 throws RemoteException { 5785 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 5786 userId); 5787 if (appInfo == null) { 5788 throw new IllegalArgumentException("The application " + packageName + 5789 " is not present on this device"); 5790 } 5791 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5792 } 5793 5794 @Override 5795 public void setAccountManagementDisabled(ComponentName who, String accountType, 5796 boolean disabled) { 5797 if (!mHasFeature) { 5798 return; 5799 } 5800 Preconditions.checkNotNull(who, "ComponentName is null"); 5801 synchronized (this) { 5802 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5803 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5804 if (disabled) { 5805 ap.accountTypesWithManagementDisabled.add(accountType); 5806 } else { 5807 ap.accountTypesWithManagementDisabled.remove(accountType); 5808 } 5809 saveSettingsLocked(UserHandle.getCallingUserId()); 5810 } 5811 } 5812 5813 @Override 5814 public String[] getAccountTypesWithManagementDisabled() { 5815 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 5816 } 5817 5818 @Override 5819 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 5820 enforceCrossUserPermission(userId); 5821 if (!mHasFeature) { 5822 return null; 5823 } 5824 synchronized (this) { 5825 DevicePolicyData policy = getUserData(userId); 5826 final int N = policy.mAdminList.size(); 5827 ArraySet<String> resultSet = new ArraySet<>(); 5828 for (int i = 0; i < N; i++) { 5829 ActiveAdmin admin = policy.mAdminList.get(i); 5830 resultSet.addAll(admin.accountTypesWithManagementDisabled); 5831 } 5832 return resultSet.toArray(new String[resultSet.size()]); 5833 } 5834 } 5835 5836 @Override 5837 public void setUninstallBlocked(ComponentName who, String packageName, 5838 boolean uninstallBlocked) { 5839 Preconditions.checkNotNull(who, "ComponentName is null"); 5840 final int userId = UserHandle.getCallingUserId(); 5841 synchronized (this) { 5842 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5843 5844 long id = mInjector.binderClearCallingIdentity(); 5845 try { 5846 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 5847 } catch (RemoteException re) { 5848 // Shouldn't happen. 5849 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 5850 } finally { 5851 mInjector.binderRestoreCallingIdentity(id); 5852 } 5853 } 5854 } 5855 5856 @Override 5857 public boolean isUninstallBlocked(ComponentName who, String packageName) { 5858 // This function should return true if and only if the package is blocked by 5859 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 5860 // when the package is a system app, or when it is an active device admin. 5861 final int userId = UserHandle.getCallingUserId(); 5862 5863 synchronized (this) { 5864 if (who != null) { 5865 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5866 } 5867 5868 long id = mInjector.binderClearCallingIdentity(); 5869 try { 5870 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 5871 } catch (RemoteException re) { 5872 // Shouldn't happen. 5873 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 5874 } finally { 5875 mInjector.binderRestoreCallingIdentity(id); 5876 } 5877 } 5878 return false; 5879 } 5880 5881 @Override 5882 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 5883 if (!mHasFeature) { 5884 return; 5885 } 5886 Preconditions.checkNotNull(who, "ComponentName is null"); 5887 synchronized (this) { 5888 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5889 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5890 if (admin.disableCallerId != disabled) { 5891 admin.disableCallerId = disabled; 5892 saveSettingsLocked(UserHandle.getCallingUserId()); 5893 } 5894 } 5895 } 5896 5897 @Override 5898 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 5899 if (!mHasFeature) { 5900 return false; 5901 } 5902 Preconditions.checkNotNull(who, "ComponentName is null"); 5903 synchronized (this) { 5904 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5905 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5906 return admin.disableCallerId; 5907 } 5908 } 5909 5910 @Override 5911 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 5912 // TODO: Should there be a check to make sure this relationship is within a profile group? 5913 //enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 5914 synchronized (this) { 5915 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 5916 return (admin != null) ? admin.disableCallerId : false; 5917 } 5918 } 5919 5920 @Override 5921 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 5922 Intent originalIntent) { 5923 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent( 5924 actualLookupKey, actualContactId, originalIntent); 5925 final int callingUserId = UserHandle.getCallingUserId(); 5926 5927 final long ident = mInjector.binderClearCallingIdentity(); 5928 try { 5929 synchronized (this) { 5930 final int managedUserId = getManagedUserId(callingUserId); 5931 if (managedUserId < 0) { 5932 return; 5933 } 5934 if (getCrossProfileCallerIdDisabledForUser(managedUserId)) { 5935 if (VERBOSE_LOG) { 5936 Log.v(LOG_TAG, 5937 "Cross-profile contacts access disabled for user " + managedUserId); 5938 } 5939 return; 5940 } 5941 ContactsInternal.startQuickContactWithErrorToastForUser( 5942 mContext, intent, new UserHandle(managedUserId)); 5943 } 5944 } finally { 5945 mInjector.binderRestoreCallingIdentity(ident); 5946 } 5947 } 5948 5949 /** 5950 * @return the user ID of the managed user that is linked to the current user, if any. 5951 * Otherwise -1. 5952 */ 5953 public int getManagedUserId(int callingUserId) { 5954 if (VERBOSE_LOG) { 5955 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 5956 } 5957 5958 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 5959 if (ui.id == callingUserId || !ui.isManagedProfile()) { 5960 continue; // Caller user self, or not a managed profile. Skip. 5961 } 5962 if (VERBOSE_LOG) { 5963 Log.v(LOG_TAG, "Managed user=" + ui.id); 5964 } 5965 return ui.id; 5966 } 5967 if (VERBOSE_LOG) { 5968 Log.v(LOG_TAG, "Managed user not found."); 5969 } 5970 return -1; 5971 } 5972 5973 @Override 5974 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 5975 if (!mHasFeature) { 5976 return; 5977 } 5978 Preconditions.checkNotNull(who, "ComponentName is null"); 5979 synchronized (this) { 5980 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5981 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5982 if (admin.disableBluetoothContactSharing != disabled) { 5983 admin.disableBluetoothContactSharing = disabled; 5984 saveSettingsLocked(UserHandle.getCallingUserId()); 5985 } 5986 } 5987 } 5988 5989 @Override 5990 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 5991 if (!mHasFeature) { 5992 return false; 5993 } 5994 Preconditions.checkNotNull(who, "ComponentName is null"); 5995 synchronized (this) { 5996 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5997 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5998 return admin.disableBluetoothContactSharing; 5999 } 6000 } 6001 6002 @Override 6003 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 6004 // TODO: Should there be a check to make sure this relationship is 6005 // within a profile group? 6006 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 6007 synchronized (this) { 6008 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 6009 return (admin != null) ? admin.disableBluetoothContactSharing : false; 6010 } 6011 } 6012 6013 /** 6014 * Sets which packages may enter lock task mode. 6015 * 6016 * This function can only be called by the device owner. 6017 * @param packages The list of packages allowed to enter lock task mode. 6018 */ 6019 @Override 6020 public void setLockTaskPackages(ComponentName who, String[] packages) 6021 throws SecurityException { 6022 Preconditions.checkNotNull(who, "ComponentName is null"); 6023 synchronized (this) { 6024 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6025 6026 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6027 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 6028 } 6029 } 6030 6031 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 6032 DevicePolicyData policy = getUserData(userHandle); 6033 policy.mLockTaskPackages = packages; 6034 6035 // Store the settings persistently. 6036 saveSettingsLocked(userHandle); 6037 updateLockTaskPackagesLocked(packages, userHandle); 6038 } 6039 6040 /** 6041 * This function returns the list of components allowed to start the task lock mode. 6042 */ 6043 @Override 6044 public String[] getLockTaskPackages(ComponentName who) { 6045 Preconditions.checkNotNull(who, "ComponentName is null"); 6046 synchronized (this) { 6047 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6048 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6049 final List<String> packages = getLockTaskPackagesLocked(userHandle); 6050 return packages.toArray(new String[packages.size()]); 6051 } 6052 } 6053 6054 private List<String> getLockTaskPackagesLocked(int userHandle) { 6055 final DevicePolicyData policy = getUserData(userHandle); 6056 return policy.mLockTaskPackages; 6057 } 6058 6059 /** 6060 * This function lets the caller know whether the given package is allowed to start the 6061 * lock task mode. 6062 * @param pkg The package to check 6063 */ 6064 @Override 6065 public boolean isLockTaskPermitted(String pkg) { 6066 // Get current user's devicepolicy 6067 int uid = mInjector.binderGetCallingUid(); 6068 int userHandle = UserHandle.getUserId(uid); 6069 DevicePolicyData policy = getUserData(userHandle); 6070 synchronized (this) { 6071 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 6072 String lockTaskPackage = policy.mLockTaskPackages.get(i); 6073 6074 // If the given package equals one of the packages stored our list, 6075 // we allow this package to start lock task mode. 6076 if (lockTaskPackage.equals(pkg)) { 6077 return true; 6078 } 6079 } 6080 } 6081 return false; 6082 } 6083 6084 @Override 6085 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 6086 if (mInjector.binderGetCallingUid() != Process.SYSTEM_UID) { 6087 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 6088 } 6089 synchronized (this) { 6090 final DevicePolicyData policy = getUserData(userHandle); 6091 Bundle adminExtras = new Bundle(); 6092 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 6093 for (ActiveAdmin admin : policy.mAdminList) { 6094 boolean ownsDevice = isDeviceOwner(admin.info.getComponent()); 6095 boolean ownsProfile = (getProfileOwner(userHandle) != null 6096 && getProfileOwner(userHandle).equals(admin.info.getPackageName())); 6097 if (ownsDevice || ownsProfile) { 6098 if (isEnabled) { 6099 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 6100 adminExtras, null); 6101 } else { 6102 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 6103 } 6104 } 6105 } 6106 } 6107 } 6108 6109 @Override 6110 public void setGlobalSetting(ComponentName who, String setting, String value) { 6111 Preconditions.checkNotNull(who, "ComponentName is null"); 6112 6113 synchronized (this) { 6114 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6115 6116 // Some settings are no supported any more. However we do not want to throw a 6117 // SecurityException to avoid breaking apps. 6118 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 6119 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 6120 return; 6121 } 6122 6123 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 6124 throw new SecurityException(String.format( 6125 "Permission denial: device owners cannot update %1$s", setting)); 6126 } 6127 6128 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 6129 // ignore if it contradicts an existing policy 6130 long timeMs = getMaximumTimeToLock(who, UserHandle.getCallingUserId()); 6131 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 6132 return; 6133 } 6134 } 6135 6136 long id = mInjector.binderClearCallingIdentity(); 6137 try { 6138 mInjector.settingsGlobalPutString(setting, value); 6139 } finally { 6140 mInjector.binderRestoreCallingIdentity(id); 6141 } 6142 } 6143 } 6144 6145 @Override 6146 public void setSecureSetting(ComponentName who, String setting, String value) { 6147 Preconditions.checkNotNull(who, "ComponentName is null"); 6148 int callingUserId = UserHandle.getCallingUserId(); 6149 final ContentResolver contentResolver = mContext.getContentResolver(); 6150 6151 synchronized (this) { 6152 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6153 6154 if (isDeviceOwner(who)) { 6155 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 6156 throw new SecurityException(String.format( 6157 "Permission denial: Device owners cannot update %1$s", setting)); 6158 } 6159 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 6160 throw new SecurityException(String.format( 6161 "Permission denial: Profile owners cannot update %1$s", setting)); 6162 } 6163 6164 long id = mInjector.binderClearCallingIdentity(); 6165 try { 6166 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 6167 } finally { 6168 mInjector.binderRestoreCallingIdentity(id); 6169 } 6170 } 6171 } 6172 6173 @Override 6174 public void setMasterVolumeMuted(ComponentName who, boolean on) { 6175 Preconditions.checkNotNull(who, "ComponentName is null"); 6176 synchronized (this) { 6177 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6178 int userId = UserHandle.getCallingUserId(); 6179 long identity = mInjector.binderClearCallingIdentity(); 6180 try { 6181 IAudioService iAudioService = IAudioService.Stub.asInterface( 6182 ServiceManager.getService(Context.AUDIO_SERVICE)); 6183 iAudioService.setMasterMute(on, 0, mContext.getPackageName(), userId); 6184 } catch (RemoteException re) { 6185 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 6186 } finally { 6187 mInjector.binderRestoreCallingIdentity(identity); 6188 } 6189 } 6190 } 6191 6192 @Override 6193 public boolean isMasterVolumeMuted(ComponentName who) { 6194 Preconditions.checkNotNull(who, "ComponentName is null"); 6195 synchronized (this) { 6196 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6197 6198 AudioManager audioManager = 6199 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 6200 return audioManager.isMasterMute(); 6201 } 6202 } 6203 6204 @Override 6205 public void setUserIcon(ComponentName who, Bitmap icon) { 6206 synchronized (this) { 6207 Preconditions.checkNotNull(who, "ComponentName is null"); 6208 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6209 6210 int userId = UserHandle.getCallingUserId(); 6211 long id = mInjector.binderClearCallingIdentity(); 6212 try { 6213 mUserManager.setUserIcon(userId, icon); 6214 } finally { 6215 mInjector.binderRestoreCallingIdentity(id); 6216 } 6217 } 6218 } 6219 6220 @Override 6221 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 6222 Preconditions.checkNotNull(who, "ComponentName is null"); 6223 synchronized (this) { 6224 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6225 } 6226 final int userId = UserHandle.getCallingUserId(); 6227 LockPatternUtils utils = new LockPatternUtils(mContext); 6228 6229 long ident = mInjector.binderClearCallingIdentity(); 6230 try { 6231 // disallow disabling the keyguard if a password is currently set 6232 if (disabled && utils.isSecure(userId)) { 6233 return false; 6234 } 6235 utils.setLockScreenDisabled(disabled, userId); 6236 } finally { 6237 mInjector.binderRestoreCallingIdentity(ident); 6238 } 6239 return true; 6240 } 6241 6242 @Override 6243 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 6244 int userId = UserHandle.getCallingUserId(); 6245 synchronized (this) { 6246 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6247 DevicePolicyData policy = getUserData(userId); 6248 if (policy.mStatusBarDisabled != disabled) { 6249 if (!setStatusBarDisabledInternal(disabled, userId)) { 6250 return false; 6251 } 6252 policy.mStatusBarDisabled = disabled; 6253 saveSettingsLocked(userId); 6254 } 6255 } 6256 return true; 6257 } 6258 6259 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 6260 long ident = mInjector.binderClearCallingIdentity(); 6261 try { 6262 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 6263 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 6264 if (statusBarService != null) { 6265 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 6266 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 6267 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 6268 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 6269 return true; 6270 } 6271 } catch (RemoteException e) { 6272 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 6273 } finally { 6274 mInjector.binderRestoreCallingIdentity(ident); 6275 } 6276 return false; 6277 } 6278 6279 /** 6280 * We need to update the internal state of whether a user has completed setup once. After 6281 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 6282 * as we don't trust any apps that might try to reset it. 6283 * <p> 6284 * Unfortunately, we don't know which user's setup state was changed, so we write all of 6285 * them. 6286 */ 6287 void updateUserSetupComplete() { 6288 List<UserInfo> users = mUserManager.getUsers(true); 6289 final int N = users.size(); 6290 for (int i = 0; i < N; i++) { 6291 int userHandle = users.get(i).id; 6292 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 6293 userHandle) != 0) { 6294 DevicePolicyData policy = getUserData(userHandle); 6295 if (!policy.mUserSetupComplete) { 6296 policy.mUserSetupComplete = true; 6297 synchronized (this) { 6298 saveSettingsLocked(userHandle); 6299 } 6300 } 6301 } 6302 } 6303 } 6304 6305 private class SetupContentObserver extends ContentObserver { 6306 6307 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 6308 Settings.Secure.USER_SETUP_COMPLETE); 6309 6310 public SetupContentObserver(Handler handler) { 6311 super(handler); 6312 } 6313 6314 void register(ContentResolver resolver) { 6315 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 6316 } 6317 6318 @Override 6319 public void onChange(boolean selfChange, Uri uri) { 6320 if (mUserSetupComplete.equals(uri)) { 6321 updateUserSetupComplete(); 6322 } 6323 } 6324 } 6325 6326 @VisibleForTesting 6327 final class LocalService extends DevicePolicyManagerInternal { 6328 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 6329 6330 @Override 6331 public List<String> getCrossProfileWidgetProviders(int profileId) { 6332 synchronized (DevicePolicyManagerService.this) { 6333 if (mOwners == null) { 6334 return Collections.emptyList(); 6335 } 6336 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 6337 if (ownerComponent == null) { 6338 return Collections.emptyList(); 6339 } 6340 6341 DevicePolicyData policy = getUserDataUnchecked(profileId); 6342 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 6343 6344 if (admin == null || admin.crossProfileWidgetProviders == null 6345 || admin.crossProfileWidgetProviders.isEmpty()) { 6346 return Collections.emptyList(); 6347 } 6348 6349 return admin.crossProfileWidgetProviders; 6350 } 6351 } 6352 6353 @Override 6354 public void addOnCrossProfileWidgetProvidersChangeListener( 6355 OnCrossProfileWidgetProvidersChangeListener listener) { 6356 synchronized (DevicePolicyManagerService.this) { 6357 if (mWidgetProviderListeners == null) { 6358 mWidgetProviderListeners = new ArrayList<>(); 6359 } 6360 if (!mWidgetProviderListeners.contains(listener)) { 6361 mWidgetProviderListeners.add(listener); 6362 } 6363 } 6364 } 6365 6366 @Override 6367 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 6368 final int userId = UserHandle.getUserId(uid); 6369 synchronized(DevicePolicyManagerService.this) { 6370 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 6371 } 6372 } 6373 6374 @Override 6375 public Bundle getComposedUserRestrictions(int userId, Bundle inBundle) { 6376 synchronized (DevicePolicyManagerService.this) { 6377 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6378 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 6379 6380 final Bundle deviceOwnerRestrictions = 6381 deviceOwner == null ? null : deviceOwner.userRestrictions; 6382 final Bundle profileOwnerRestrictions = 6383 profileOwner == null ? null : profileOwner.userRestrictions; 6384 final boolean cameraDisabled = getCameraDisabled(null, userId); 6385 6386 if (deviceOwnerRestrictions == null && profileOwnerRestrictions == null 6387 && !cameraDisabled) { 6388 // No restrictions to merge. 6389 return inBundle; 6390 } 6391 6392 final Bundle composed = new Bundle(inBundle); 6393 UserRestrictionsUtils.merge(composed, deviceOwnerRestrictions); 6394 UserRestrictionsUtils.merge(composed, profileOwnerRestrictions); 6395 6396 // Also merge in the camera restriction. 6397 if (cameraDisabled) { 6398 composed.putBoolean(UserManager.DISALLOW_CAMERA, true); 6399 } 6400 6401 return composed; 6402 } 6403 } 6404 6405 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 6406 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 6407 synchronized (DevicePolicyManagerService.this) { 6408 listeners = new ArrayList<>(mWidgetProviderListeners); 6409 } 6410 final int listenerCount = listeners.size(); 6411 for (int i = 0; i < listenerCount; i++) { 6412 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 6413 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 6414 } 6415 } 6416 } 6417 6418 /** 6419 * Returns true if specified admin is allowed to limit passwords and has a 6420 * {@code passwordQuality} of at least {@code minPasswordQuality} 6421 */ 6422 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 6423 if (admin.passwordQuality < minPasswordQuality) { 6424 return false; 6425 } 6426 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 6427 } 6428 6429 @Override 6430 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 6431 if (policy != null && !policy.isValid()) { 6432 throw new IllegalArgumentException("Invalid system update policy."); 6433 } 6434 synchronized (this) { 6435 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6436 if (policy == null) { 6437 mOwners.clearSystemUpdatePolicy(); 6438 } else { 6439 mOwners.setSystemUpdatePolicy(policy); 6440 } 6441 mOwners.writeDeviceOwner(); 6442 } 6443 mContext.sendBroadcastAsUser( 6444 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 6445 UserHandle.SYSTEM); 6446 } 6447 6448 @Override 6449 public SystemUpdatePolicy getSystemUpdatePolicy() { 6450 synchronized (this) { 6451 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 6452 if (policy != null && !policy.isValid()) { 6453 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 6454 return null; 6455 } 6456 return policy; 6457 } 6458 } 6459 6460 /** 6461 * Checks if the caller of the method is the device owner app. 6462 * 6463 * @param callerUid UID of the caller. 6464 * @return true if the caller is the device owner app 6465 */ 6466 private boolean isCallerDeviceOwner(int callerUid) { 6467 String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 6468 for (String pkg : pkgs) { 6469 if (isDeviceOwnerPackage(pkg)) { 6470 return true; 6471 } 6472 } 6473 return false; 6474 } 6475 6476 @Override 6477 public void notifyPendingSystemUpdate(long updateReceivedTime) { 6478 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 6479 "Only the system update service can broadcast update information"); 6480 6481 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 6482 Slog.w(LOG_TAG, "Only the system update service in the system user " + 6483 "can broadcast update information."); 6484 return; 6485 } 6486 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 6487 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 6488 updateReceivedTime); 6489 6490 synchronized (this) { 6491 final String deviceOwnerPackage = getDeviceOwner() == null ? null : 6492 getDeviceOwner().getPackageName(); 6493 if (deviceOwnerPackage == null) { 6494 return; 6495 } 6496 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 6497 6498 ActivityInfo[] receivers = null; 6499 try { 6500 receivers = mContext.getPackageManager().getPackageInfo( 6501 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 6502 } catch (NameNotFoundException e) { 6503 Log.e(LOG_TAG, "Cannot find device owner package", e); 6504 } 6505 if (receivers != null) { 6506 long ident = mInjector.binderClearCallingIdentity(); 6507 try { 6508 for (int i = 0; i < receivers.length; i++) { 6509 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 6510 intent.setComponent(new ComponentName(deviceOwnerPackage, 6511 receivers[i].name)); 6512 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 6513 } 6514 } 6515 } finally { 6516 mInjector.binderRestoreCallingIdentity(ident); 6517 } 6518 } 6519 } 6520 } 6521 6522 @Override 6523 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 6524 int userId = UserHandle.getCallingUserId(); 6525 synchronized (this) { 6526 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6527 DevicePolicyData userPolicy = getUserData(userId); 6528 if (userPolicy.mPermissionPolicy != policy) { 6529 userPolicy.mPermissionPolicy = policy; 6530 saveSettingsLocked(userId); 6531 } 6532 } 6533 } 6534 6535 @Override 6536 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 6537 int userId = UserHandle.getCallingUserId(); 6538 synchronized (this) { 6539 DevicePolicyData userPolicy = getUserData(userId); 6540 return userPolicy.mPermissionPolicy; 6541 } 6542 } 6543 6544 @Override 6545 public boolean setPermissionGrantState(ComponentName admin, String packageName, 6546 String permission, int grantState) throws RemoteException { 6547 UserHandle user = mInjector.binderGetCallingUserHandle(); 6548 synchronized (this) { 6549 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6550 long ident = mInjector.binderClearCallingIdentity(); 6551 try { 6552 final ApplicationInfo ai = mIPackageManager 6553 .getApplicationInfo(packageName, 0, user.getIdentifier()); 6554 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 6555 if (targetSdkVersion < android.os.Build.VERSION_CODES.M) { 6556 return false; 6557 } 6558 final PackageManager packageManager = mContext.getPackageManager(); 6559 switch (grantState) { 6560 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 6561 packageManager.grantRuntimePermission(packageName, permission, user); 6562 packageManager.updatePermissionFlags(permission, packageName, 6563 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6564 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6565 } break; 6566 6567 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 6568 packageManager.revokeRuntimePermission(packageName, 6569 permission, user); 6570 packageManager.updatePermissionFlags(permission, packageName, 6571 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6572 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6573 } break; 6574 6575 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 6576 packageManager.updatePermissionFlags(permission, packageName, 6577 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 6578 } break; 6579 } 6580 return true; 6581 } catch (SecurityException se) { 6582 return false; 6583 } finally { 6584 mInjector.binderRestoreCallingIdentity(ident); 6585 } 6586 } 6587 } 6588 6589 @Override 6590 public int getPermissionGrantState(ComponentName admin, String packageName, 6591 String permission) throws RemoteException { 6592 PackageManager packageManager = mContext.getPackageManager(); 6593 6594 UserHandle user = mInjector.binderGetCallingUserHandle(); 6595 synchronized (this) { 6596 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6597 long ident = mInjector.binderClearCallingIdentity(); 6598 try { 6599 int granted = mIPackageManager.checkPermission(permission, 6600 packageName, user.getIdentifier()); 6601 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 6602 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 6603 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 6604 // Not controlled by policy 6605 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 6606 } else { 6607 // Policy controlled so return result based on permission grant state 6608 return granted == PackageManager.PERMISSION_GRANTED 6609 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 6610 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 6611 } 6612 } finally { 6613 mInjector.binderRestoreCallingIdentity(ident); 6614 } 6615 } 6616 } 6617 6618 boolean isPackageInstalledForUser(String packageName, int userHandle) { 6619 try { 6620 PackageInfo pi = mIPackageManager.getPackageInfo(packageName, 0, userHandle); 6621 return (pi != null) && (pi.applicationInfo.flags != 0); 6622 } catch (RemoteException re) { 6623 throw new RuntimeException("Package manager has died", re); 6624 } 6625 } 6626} 6627