DevicePolicyManagerService.java revision 1060c61866d57bd82cc474447205471c15e0d901
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.devicepolicy; 18 19import static android.Manifest.permission.MANAGE_CA_CERTIFICATES; 20import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 21import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 22import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 23import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES; 24import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 25import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 26import static org.xmlpull.v1.XmlPullParser.END_TAG; 27import static org.xmlpull.v1.XmlPullParser.TEXT; 28 29import com.google.android.collect.Sets; 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.PackageManagerInternal; 64import android.content.pm.ResolveInfo; 65import android.content.pm.ServiceInfo; 66import android.content.pm.UserInfo; 67import android.database.ContentObserver; 68import android.graphics.Bitmap; 69import android.media.AudioManager; 70import android.media.IAudioService; 71import android.net.ConnectivityManager; 72import android.net.ProxyInfo; 73import android.net.Uri; 74import android.net.wifi.WifiInfo; 75import android.net.wifi.WifiManager; 76import android.os.AsyncTask; 77import android.os.Binder; 78import android.os.Build; 79import android.os.Bundle; 80import android.os.Environment; 81import android.os.FileUtils; 82import android.os.Handler; 83import android.os.IBinder; 84import android.os.Looper; 85import android.os.PersistableBundle; 86import android.os.PowerManager; 87import android.os.PowerManagerInternal; 88import android.os.Process; 89import android.os.RecoverySystem; 90import android.os.RemoteCallback; 91import android.os.RemoteException; 92import android.os.ServiceManager; 93import android.os.SystemClock; 94import android.os.SystemProperties; 95import android.os.UserHandle; 96import android.os.UserManager; 97import android.os.UserManagerInternal; 98import android.os.storage.StorageManager; 99import android.provider.ContactsContract.QuickContact; 100import android.provider.ContactsInternal; 101import android.provider.Settings; 102import android.security.Credentials; 103import android.security.IKeyChainAliasCallback; 104import android.security.IKeyChainService; 105import android.security.KeyChain; 106import android.security.KeyChain.KeyChainConnection; 107import android.service.persistentdata.PersistentDataBlockManager; 108import android.text.TextUtils; 109import android.util.ArrayMap; 110import android.util.ArraySet; 111import android.util.Log; 112import android.util.Slog; 113import android.util.SparseArray; 114import android.util.Xml; 115import android.view.IWindowManager; 116import android.view.accessibility.AccessibilityManager; 117import android.view.accessibility.IAccessibilityManager; 118import android.view.inputmethod.InputMethodInfo; 119import android.view.inputmethod.InputMethodManager; 120 121import com.android.internal.R; 122import com.android.internal.annotations.VisibleForTesting; 123import com.android.internal.statusbar.IStatusBarService; 124import com.android.internal.util.FastXmlSerializer; 125import com.android.internal.util.JournaledFile; 126import com.android.internal.util.Preconditions; 127import com.android.internal.util.XmlUtils; 128import com.android.internal.widget.LockPatternUtils; 129import com.android.server.LocalServices; 130import com.android.server.SystemService; 131import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 132import com.android.server.pm.UserRestrictionsUtils; 133 134import org.xmlpull.v1.XmlPullParser; 135import org.xmlpull.v1.XmlPullParserException; 136import org.xmlpull.v1.XmlSerializer; 137 138import java.io.ByteArrayInputStream; 139import java.io.File; 140import java.io.FileDescriptor; 141import java.io.FileInputStream; 142import java.io.FileNotFoundException; 143import java.io.FileOutputStream; 144import java.io.IOException; 145import java.io.PrintWriter; 146import java.nio.charset.StandardCharsets; 147import java.security.cert.CertificateException; 148import java.security.cert.CertificateFactory; 149import java.security.cert.X509Certificate; 150import java.text.DateFormat; 151import java.util.ArrayList; 152import java.util.Arrays; 153import java.util.Collections; 154import java.util.Date; 155import java.util.List; 156import java.util.Map.Entry; 157import java.util.Set; 158 159/** 160 * Implementation of the device policy APIs. 161 */ 162public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 163 164 private static final String LOG_TAG = "DevicePolicyManagerService"; 165 166 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 167 168 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 169 170 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 171 172 private static final String TAG_STATUS_BAR = "statusbar"; 173 174 private static final String ATTR_DISABLED = "disabled"; 175 176 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 177 "do-not-ask-credentials-on-boot"; 178 179 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 180 181 private static final long MS_PER_DAY = 86400 * 1000; 182 183 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 184 185 protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 186 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 187 188 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 189 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 190 191 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 192 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 193 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 194 195 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 196 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 197 = "application-restrictions-manager"; 198 199 private static final int STATUS_BAR_DISABLE_MASK = 200 StatusBarManager.DISABLE_EXPAND | 201 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 202 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 203 StatusBarManager.DISABLE_SEARCH; 204 205 private static final int STATUS_BAR_DISABLE2_MASK = 206 StatusBarManager.DISABLE2_QUICK_SETTINGS; 207 208 private static final Set<String> SECURE_SETTINGS_WHITELIST; 209 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 210 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 211 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 212 static { 213 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 214 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 215 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 216 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 217 218 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 219 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 220 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 221 222 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 223 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 224 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 225 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 226 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 227 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 228 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 229 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 230 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 231 232 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 233 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 234 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 235 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 236 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 237 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 238 } 239 240 // Keyguard features that when set of a profile will affect the profiles 241 // parent user. 242 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 243 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 244 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 245 246 // Keyguard features that are allowed to be set on a managed profile 247 private static final int PROFILE_KEYGUARD_FEATURES = 248 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER 249 | DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 250 251 final Context mContext; 252 final Injector mInjector; 253 final IPackageManager mIPackageManager; 254 final UserManager mUserManager; 255 final UserManagerInternal mUserManagerInternal; 256 257 final LocalService mLocalService; 258 259 // Stores and loads state on device and profile owners. 260 @VisibleForTesting 261 final Owners mOwners; 262 263 private final Binder mToken = new Binder(); 264 265 /** 266 * Whether or not device admin feature is supported. If it isn't return defaults for all 267 * public methods. 268 */ 269 private boolean mHasFeature; 270 271 public static final class Lifecycle extends SystemService { 272 private DevicePolicyManagerService mService; 273 274 public Lifecycle(Context context) { 275 super(context); 276 mService = new DevicePolicyManagerService(context); 277 } 278 279 @Override 280 public void onStart() { 281 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 282 } 283 284 @Override 285 public void onBootPhase(int phase) { 286 mService.systemReady(phase); 287 } 288 289 @Override 290 public void onStartUser(int userHandle) { 291 mService.onStartUser(userHandle); 292 } 293 } 294 295 public static class DevicePolicyData { 296 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 297 int mActivePasswordLength = 0; 298 int mActivePasswordUpperCase = 0; 299 int mActivePasswordLowerCase = 0; 300 int mActivePasswordLetters = 0; 301 int mActivePasswordNumeric = 0; 302 int mActivePasswordSymbols = 0; 303 int mActivePasswordNonLetter = 0; 304 int mFailedPasswordAttempts = 0; 305 306 int mUserHandle; 307 int mPasswordOwner = -1; 308 long mLastMaximumTimeToLock = -1; 309 boolean mUserSetupComplete = false; 310 int mPermissionPolicy; 311 312 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 313 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 314 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 315 316 // This is the list of component allowed to start lock task mode. 317 List<String> mLockTaskPackages = new ArrayList<>(); 318 319 boolean mStatusBarDisabled = false; 320 321 ComponentName mRestrictionsProvider; 322 323 String mDelegatedCertInstallerPackage; 324 325 boolean doNotAskCredentialsOnBoot = false; 326 327 String mApplicationRestrictionsManagingPackage; 328 329 public DevicePolicyData(int userHandle) { 330 mUserHandle = userHandle; 331 } 332 } 333 334 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 335 336 final Handler mHandler; 337 338 BroadcastReceiver mReceiver = new BroadcastReceiver() { 339 @Override 340 public void onReceive(Context context, Intent intent) { 341 final String action = intent.getAction(); 342 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 343 getSendingUserId()); 344 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 345 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 346 if (VERBOSE_LOG) { 347 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 348 + action + " for user " + userHandle); 349 } 350 mHandler.post(new Runnable() { 351 @Override 352 public void run() { 353 handlePasswordExpirationNotification(userHandle); 354 } 355 }); 356 } 357 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 358 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 359 new MonitoringCertNotificationTask().execute(intent); 360 } 361 if (Intent.ACTION_USER_REMOVED.equals(action)) { 362 removeUserData(userHandle); 363 } else if (Intent.ACTION_USER_STARTED.equals(action) 364 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 365 366 if (Intent.ACTION_USER_STARTED.equals(action)) { 367 // Reset the policy data 368 synchronized (DevicePolicyManagerService.this) { 369 mUserData.remove(userHandle); 370 } 371 } 372 handlePackagesChanged(null /* check all admins */, userHandle); 373 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 374 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 375 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 376 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 377 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 378 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 379 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 380 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 381 clearWipeProfileNotification(); 382 } 383 } 384 }; 385 386 static class ActiveAdmin { 387 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 388 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 389 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 390 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 391 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 392 = "disable-bt-contacts-sharing"; 393 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 394 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 395 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 396 private static final String TAG_ACCOUNT_TYPE = "account-type"; 397 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 398 = "permitted-accessiblity-services"; 399 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 400 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 401 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 402 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 403 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 404 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 405 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 406 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 407 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 408 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 409 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 410 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 411 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 412 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 413 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 414 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 415 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 416 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 417 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 418 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 419 private static final String ATTR_VALUE = "value"; 420 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 421 private static final String TAG_POLICIES = "policies"; 422 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 423 "cross-profile-widget-providers"; 424 private static final String TAG_PROVIDER = "provider"; 425 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 426 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 427 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 428 429 final DeviceAdminInfo info; 430 431 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 432 433 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 434 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 435 436 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 437 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 438 439 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 440 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 441 442 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 443 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 444 445 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 446 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 447 448 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 449 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 450 451 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 452 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 453 454 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 455 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 456 457 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 458 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 459 460 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 461 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 462 463 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 464 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 465 466 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 467 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 468 469 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 470 471 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 472 473 boolean encryptionRequested = false; 474 boolean disableCamera = false; 475 boolean disableCallerId = false; 476 boolean disableContactsSearch = false; 477 boolean disableBluetoothContactSharing = true; 478 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 479 boolean requireAutoTime = false; // Can only be set by a device owner. 480 481 static class TrustAgentInfo { 482 public PersistableBundle options; 483 TrustAgentInfo(PersistableBundle bundle) { 484 options = bundle; 485 } 486 } 487 488 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 489 490 // The list of permitted accessibility services package namesas set by a profile 491 // or device owner. Null means all accessibility services are allowed, empty means 492 // none except system services are allowed. 493 List<String> permittedAccessiblityServices; 494 495 // The list of permitted input methods package names as set by a profile or device owner. 496 // Null means all input methods are allowed, empty means none except system imes are 497 // allowed. 498 List<String> permittedInputMethods; 499 500 // List of package names to keep cached. 501 List<String> keepUninstalledPackages; 502 503 // TODO: review implementation decisions with frameworks team 504 boolean specifiesGlobalProxy = false; 505 String globalProxySpec = null; 506 String globalProxyExclusionList = null; 507 508 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 509 510 List<String> crossProfileWidgetProviders; 511 512 Bundle userRestrictions; 513 514 ActiveAdmin(DeviceAdminInfo _info) { 515 info = _info; 516 } 517 518 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 519 520 public UserHandle getUserHandle() { 521 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 522 } 523 524 void writeToXml(XmlSerializer out) 525 throws IllegalArgumentException, IllegalStateException, IOException { 526 out.startTag(null, TAG_POLICIES); 527 info.writePoliciesToXml(out); 528 out.endTag(null, TAG_POLICIES); 529 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 530 out.startTag(null, TAG_PASSWORD_QUALITY); 531 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 532 out.endTag(null, TAG_PASSWORD_QUALITY); 533 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 534 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 535 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 536 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 537 } 538 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 539 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 540 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 541 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 542 } 543 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 544 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 545 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 546 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 547 } 548 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 549 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 550 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 551 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 552 } 553 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 554 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 555 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 556 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 557 } 558 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 559 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 560 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 561 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 562 } 563 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 564 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 565 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 566 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 567 } 568 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 569 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 570 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 571 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 572 } 573 } 574 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 575 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 576 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 577 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 578 } 579 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 580 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 581 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 582 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 583 } 584 if (specifiesGlobalProxy) { 585 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 586 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 587 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 588 if (globalProxySpec != null) { 589 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 590 out.attribute(null, ATTR_VALUE, globalProxySpec); 591 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 592 } 593 if (globalProxyExclusionList != null) { 594 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 595 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 596 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 597 } 598 } 599 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 600 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 601 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 602 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 603 } 604 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 605 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 606 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 607 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 608 } 609 if (encryptionRequested) { 610 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 611 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 612 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 613 } 614 if (disableCamera) { 615 out.startTag(null, TAG_DISABLE_CAMERA); 616 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 617 out.endTag(null, TAG_DISABLE_CAMERA); 618 } 619 if (disableCallerId) { 620 out.startTag(null, TAG_DISABLE_CALLER_ID); 621 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 622 out.endTag(null, TAG_DISABLE_CALLER_ID); 623 } 624 if (disableContactsSearch) { 625 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 626 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 627 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 628 } 629 if (disableBluetoothContactSharing) { 630 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 631 out.attribute(null, ATTR_VALUE, 632 Boolean.toString(disableBluetoothContactSharing)); 633 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 634 } 635 if (disableScreenCapture) { 636 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 637 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 638 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 639 } 640 if (requireAutoTime) { 641 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 642 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 643 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 644 } 645 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 646 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 647 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 648 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 649 } 650 if (!accountTypesWithManagementDisabled.isEmpty()) { 651 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 652 for (String ac : accountTypesWithManagementDisabled) { 653 out.startTag(null, TAG_ACCOUNT_TYPE); 654 out.attribute(null, ATTR_VALUE, ac); 655 out.endTag(null, TAG_ACCOUNT_TYPE); 656 } 657 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 658 } 659 if (!trustAgentInfos.isEmpty()) { 660 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 661 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 662 for (Entry<String, TrustAgentInfo> entry : set) { 663 TrustAgentInfo trustAgentInfo = entry.getValue(); 664 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 665 out.attribute(null, ATTR_VALUE, entry.getKey()); 666 if (trustAgentInfo.options != null) { 667 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 668 try { 669 trustAgentInfo.options.saveToXml(out); 670 } catch (XmlPullParserException e) { 671 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 672 } 673 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 674 } 675 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 676 } 677 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 678 } 679 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 680 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 681 final int providerCount = crossProfileWidgetProviders.size(); 682 for (int i = 0; i < providerCount; i++) { 683 String provider = crossProfileWidgetProviders.get(i); 684 out.startTag(null, TAG_PROVIDER); 685 out.attribute(null, ATTR_VALUE, provider); 686 out.endTag(null, TAG_PROVIDER); 687 } 688 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 689 } 690 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 691 permittedAccessiblityServices); 692 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 693 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 694 if (hasUserRestrictions()) { 695 UserRestrictionsUtils.writeRestrictions( 696 out, userRestrictions, TAG_USER_RESTRICTIONS); 697 } 698 } 699 700 void writePackageListToXml(XmlSerializer out, String outerTag, 701 List<String> packageList) 702 throws IllegalArgumentException, IllegalStateException, IOException { 703 if (packageList == null) { 704 return; 705 } 706 707 out.startTag(null, outerTag); 708 for (String packageName : packageList) { 709 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 710 out.attribute(null, ATTR_VALUE, packageName); 711 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 712 } 713 out.endTag(null, outerTag); 714 } 715 716 void readFromXml(XmlPullParser parser) 717 throws XmlPullParserException, IOException { 718 int outerDepth = parser.getDepth(); 719 int type; 720 while ((type=parser.next()) != END_DOCUMENT 721 && (type != END_TAG || parser.getDepth() > outerDepth)) { 722 if (type == END_TAG || type == TEXT) { 723 continue; 724 } 725 String tag = parser.getName(); 726 if (TAG_POLICIES.equals(tag)) { 727 info.readPoliciesFromXml(parser); 728 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 729 passwordQuality = Integer.parseInt( 730 parser.getAttributeValue(null, ATTR_VALUE)); 731 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 732 minimumPasswordLength = Integer.parseInt( 733 parser.getAttributeValue(null, ATTR_VALUE)); 734 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 735 passwordHistoryLength = Integer.parseInt( 736 parser.getAttributeValue(null, ATTR_VALUE)); 737 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 738 minimumPasswordUpperCase = Integer.parseInt( 739 parser.getAttributeValue(null, ATTR_VALUE)); 740 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 741 minimumPasswordLowerCase = Integer.parseInt( 742 parser.getAttributeValue(null, ATTR_VALUE)); 743 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 744 minimumPasswordLetters = Integer.parseInt( 745 parser.getAttributeValue(null, ATTR_VALUE)); 746 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 747 minimumPasswordNumeric = Integer.parseInt( 748 parser.getAttributeValue(null, ATTR_VALUE)); 749 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 750 minimumPasswordSymbols = Integer.parseInt( 751 parser.getAttributeValue(null, ATTR_VALUE)); 752 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 753 minimumPasswordNonLetter = Integer.parseInt( 754 parser.getAttributeValue(null, ATTR_VALUE)); 755 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 756 maximumTimeToUnlock = Long.parseLong( 757 parser.getAttributeValue(null, ATTR_VALUE)); 758 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 759 maximumFailedPasswordsForWipe = Integer.parseInt( 760 parser.getAttributeValue(null, ATTR_VALUE)); 761 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 762 specifiesGlobalProxy = Boolean.parseBoolean( 763 parser.getAttributeValue(null, ATTR_VALUE)); 764 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 765 globalProxySpec = 766 parser.getAttributeValue(null, ATTR_VALUE); 767 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 768 globalProxyExclusionList = 769 parser.getAttributeValue(null, ATTR_VALUE); 770 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 771 passwordExpirationTimeout = Long.parseLong( 772 parser.getAttributeValue(null, ATTR_VALUE)); 773 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 774 passwordExpirationDate = Long.parseLong( 775 parser.getAttributeValue(null, ATTR_VALUE)); 776 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 777 encryptionRequested = Boolean.parseBoolean( 778 parser.getAttributeValue(null, ATTR_VALUE)); 779 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 780 disableCamera = Boolean.parseBoolean( 781 parser.getAttributeValue(null, ATTR_VALUE)); 782 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 783 disableCallerId = Boolean.parseBoolean( 784 parser.getAttributeValue(null, ATTR_VALUE)); 785 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 786 disableContactsSearch = Boolean.parseBoolean( 787 parser.getAttributeValue(null, ATTR_VALUE)); 788 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 789 disableBluetoothContactSharing = Boolean.parseBoolean(parser 790 .getAttributeValue(null, ATTR_VALUE)); 791 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 792 disableScreenCapture = Boolean.parseBoolean( 793 parser.getAttributeValue(null, ATTR_VALUE)); 794 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 795 requireAutoTime= Boolean.parseBoolean( 796 parser.getAttributeValue(null, ATTR_VALUE)); 797 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 798 disabledKeyguardFeatures = Integer.parseInt( 799 parser.getAttributeValue(null, ATTR_VALUE)); 800 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 801 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 802 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 803 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 804 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 805 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 806 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 807 permittedAccessiblityServices = readPackageList(parser, tag); 808 } else if (TAG_PERMITTED_IMES.equals(tag)) { 809 permittedInputMethods = readPackageList(parser, tag); 810 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 811 keepUninstalledPackages = 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("disableContactsSearch="); 997 pw.println(disableContactsSearch); 998 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 999 pw.println(disableBluetoothContactSharing); 1000 pw.print(prefix); pw.print("disableScreenCapture="); 1001 pw.println(disableScreenCapture); 1002 pw.print(prefix); pw.print("requireAutoTime="); 1003 pw.println(requireAutoTime); 1004 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1005 pw.println(disabledKeyguardFeatures); 1006 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1007 pw.println(crossProfileWidgetProviders); 1008 if (permittedAccessiblityServices != null) { 1009 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1010 pw.println(permittedAccessiblityServices); 1011 } 1012 if (permittedInputMethods != null) { 1013 pw.print(prefix); pw.print("permittedInputMethods="); 1014 pw.println(permittedInputMethods); 1015 } 1016 if (keepUninstalledPackages != null) { 1017 pw.print(prefix); pw.print("keepUninstalledPackages="); 1018 pw.println(keepUninstalledPackages); 1019 } 1020 pw.print(prefix); pw.println("userRestrictions:"); 1021 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1022 } 1023 } 1024 1025 private void handlePackagesChanged(String packageName, int userHandle) { 1026 boolean removed = false; 1027 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1028 DevicePolicyData policy = getUserData(userHandle); 1029 synchronized (this) { 1030 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1031 ActiveAdmin aa = policy.mAdminList.get(i); 1032 try { 1033 // If we're checking all packages or if the specific one we're checking matches, 1034 // then check if the package and receiver still exist. 1035 final String adminPackage = aa.info.getPackageName(); 1036 if (packageName == null || packageName.equals(adminPackage)) { 1037 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1038 || mIPackageManager.getReceiverInfo( 1039 aa.info.getComponent(), 0, userHandle) == null) { 1040 removed = true; 1041 policy.mAdminList.remove(i); 1042 policy.mAdminMap.remove(aa.info.getComponent()); 1043 } 1044 } 1045 } catch (RemoteException re) { 1046 // Shouldn't happen 1047 } 1048 } 1049 if (removed) { 1050 validatePasswordOwnerLocked(policy); 1051 saveSettingsLocked(policy.mUserHandle); 1052 } 1053 1054 // Check if delegated cert installer or app restrictions managing packages are removed. 1055 if (isRemovedPackage(packageName, policy.mDelegatedCertInstallerPackage, userHandle)) { 1056 policy.mDelegatedCertInstallerPackage = null; 1057 saveSettingsLocked(policy.mUserHandle); 1058 } 1059 if (isRemovedPackage( 1060 packageName, policy.mApplicationRestrictionsManagingPackage, userHandle)) { 1061 policy.mApplicationRestrictionsManagingPackage = null; 1062 saveSettingsLocked(policy.mUserHandle); 1063 } 1064 } 1065 if (removed) { 1066 // The removed admin might have disabled camera, so update user restrictions. 1067 pushUserRestrictions(userHandle); 1068 } 1069 } 1070 1071 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1072 try { 1073 return targetPackage != null 1074 && (changedPackage == null || changedPackage.equals(targetPackage)) 1075 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1076 } catch (RemoteException e) { 1077 // Shouldn't happen 1078 } 1079 1080 return false; 1081 } 1082 1083 /** 1084 * Unit test will subclass it to inject mocks. 1085 */ 1086 @VisibleForTesting 1087 static class Injector { 1088 1089 private final Context mContext; 1090 1091 Injector(Context context) { 1092 mContext = context; 1093 } 1094 1095 Owners newOwners() { 1096 return new Owners(mContext, getUserManager(), getUserManagerInternal()); 1097 } 1098 1099 UserManager getUserManager() { 1100 return UserManager.get(mContext); 1101 } 1102 1103 UserManagerInternal getUserManagerInternal() { 1104 return LocalServices.getService(UserManagerInternal.class); 1105 } 1106 1107 PackageManagerInternal getPackageManagerInternal() { 1108 return LocalServices.getService(PackageManagerInternal.class); 1109 } 1110 1111 NotificationManager getNotificationManager() { 1112 return mContext.getSystemService(NotificationManager.class); 1113 } 1114 1115 PowerManagerInternal getPowerManagerInternal() { 1116 return LocalServices.getService(PowerManagerInternal.class); 1117 } 1118 1119 IWindowManager getIWindowManager() { 1120 return IWindowManager.Stub 1121 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1122 } 1123 1124 IActivityManager getIActivityManager() { 1125 return ActivityManagerNative.getDefault(); 1126 } 1127 1128 IPackageManager getIPackageManager() { 1129 return AppGlobals.getPackageManager(); 1130 } 1131 1132 IBackupManager getIBackupManager() { 1133 return IBackupManager.Stub.asInterface( 1134 ServiceManager.getService(Context.BACKUP_SERVICE)); 1135 } 1136 1137 IAudioService getIAudioService() { 1138 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1139 } 1140 1141 LockPatternUtils newLockPatternUtils() { 1142 return new LockPatternUtils(mContext); 1143 } 1144 1145 Looper getMyLooper() { 1146 return Looper.myLooper(); 1147 } 1148 1149 WifiManager getWifiManager() { 1150 return mContext.getSystemService(WifiManager.class); 1151 } 1152 1153 long binderClearCallingIdentity() { 1154 return Binder.clearCallingIdentity(); 1155 } 1156 1157 void binderRestoreCallingIdentity(long token) { 1158 Binder.restoreCallingIdentity(token); 1159 } 1160 1161 int binderGetCallingUid() { 1162 return Binder.getCallingUid(); 1163 } 1164 1165 int binderGetCallingPid() { 1166 return Binder.getCallingPid(); 1167 } 1168 1169 UserHandle binderGetCallingUserHandle() { 1170 return Binder.getCallingUserHandle(); 1171 } 1172 1173 boolean binderIsCallingUidMyUid() { 1174 return getCallingUid() == Process.myUid(); 1175 } 1176 1177 final int userHandleGetCallingUserId() { 1178 return UserHandle.getUserId(binderGetCallingUid()); 1179 } 1180 1181 File environmentGetUserSystemDirectory(int userId) { 1182 return Environment.getUserSystemDirectory(userId); 1183 } 1184 1185 void powerManagerGoToSleep(long time, int reason, int flags) { 1186 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1187 } 1188 1189 void powerManagerReboot(String reason) { 1190 mContext.getSystemService(PowerManager.class).reboot(reason); 1191 } 1192 1193 boolean systemPropertiesGetBoolean(String key, boolean def) { 1194 return SystemProperties.getBoolean(key, def); 1195 } 1196 1197 long systemPropertiesGetLong(String key, long def) { 1198 return SystemProperties.getLong(key, def); 1199 } 1200 1201 String systemPropertiesGet(String key, String def) { 1202 return SystemProperties.get(key, def); 1203 } 1204 1205 String systemPropertiesGet(String key) { 1206 return SystemProperties.get(key); 1207 } 1208 1209 void systemPropertiesSet(String key, String value) { 1210 SystemProperties.set(key, value); 1211 } 1212 1213 boolean userManagerIsSplitSystemUser() { 1214 return UserManager.isSplitSystemUser(); 1215 } 1216 1217 String getDevicePolicyFilePathForSystemUser() { 1218 return "/data/system/"; 1219 } 1220 1221 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1222 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1223 name, def, userHandle); 1224 } 1225 1226 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1227 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1228 name, value, userHandle); 1229 } 1230 1231 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1232 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1233 name, value, userHandle); 1234 } 1235 1236 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1237 Settings.Global.putStringForUser(mContext.getContentResolver(), 1238 name, value, userHandle); 1239 } 1240 1241 void settingsSecurePutInt(String name, int value) { 1242 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1243 } 1244 1245 int settingsGlobalGetInt(String name, int def) { 1246 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1247 } 1248 1249 void settingsGlobalPutInt(String name, int value) { 1250 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1251 } 1252 1253 void settingsSecurePutString(String name, String value) { 1254 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1255 } 1256 1257 void settingsGlobalPutString(String name, String value) { 1258 Settings.Global.putString(mContext.getContentResolver(), name, value); 1259 } 1260 } 1261 1262 /** 1263 * Instantiates the service. 1264 */ 1265 public DevicePolicyManagerService(Context context) { 1266 this(new Injector(context)); 1267 } 1268 1269 @VisibleForTesting 1270 DevicePolicyManagerService(Injector injector) { 1271 mInjector = injector; 1272 mContext = Preconditions.checkNotNull(injector.mContext); 1273 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1274 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1275 1276 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1277 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1278 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1279 1280 mLocalService = new LocalService(); 1281 1282 mHasFeature = mContext.getPackageManager() 1283 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1284 if (!mHasFeature) { 1285 // Skip the rest of the initialization 1286 return; 1287 } 1288 IntentFilter filter = new IntentFilter(); 1289 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1290 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1291 filter.addAction(Intent.ACTION_USER_REMOVED); 1292 filter.addAction(Intent.ACTION_USER_STARTED); 1293 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1294 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1295 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1296 filter = new IntentFilter(); 1297 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1298 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1299 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1300 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1301 filter.addDataScheme("package"); 1302 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1303 filter = new IntentFilter(); 1304 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1305 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1306 1307 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1308 } 1309 1310 /** 1311 * Creates and loads the policy data from xml. 1312 * @param userHandle the user for whom to load the policy data 1313 * @return 1314 */ 1315 @NonNull 1316 DevicePolicyData getUserData(int userHandle) { 1317 synchronized (this) { 1318 DevicePolicyData policy = mUserData.get(userHandle); 1319 if (policy == null) { 1320 policy = new DevicePolicyData(userHandle); 1321 mUserData.append(userHandle, policy); 1322 loadSettingsLocked(policy, userHandle); 1323 } 1324 return policy; 1325 } 1326 } 1327 1328 /** 1329 * Creates and loads the policy data from xml for data that is shared between 1330 * various profiles of a user. In contrast to {@link #getUserData(int)} 1331 * it allows access to data of users other than the calling user. 1332 * 1333 * This function should only be used for shared data, e.g. everything regarding 1334 * passwords and should be removed once multiple screen locks are present. 1335 * @param userHandle the user for whom to load the policy data 1336 * @return 1337 */ 1338 DevicePolicyData getUserDataUnchecked(int userHandle) { 1339 long ident = mInjector.binderClearCallingIdentity(); 1340 try { 1341 return getUserData(userHandle); 1342 } finally { 1343 mInjector.binderRestoreCallingIdentity(ident); 1344 } 1345 } 1346 1347 void removeUserData(int userHandle) { 1348 synchronized (this) { 1349 if (userHandle == UserHandle.USER_SYSTEM) { 1350 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1351 return; 1352 } 1353 mOwners.removeProfileOwner(userHandle); 1354 mOwners.writeProfileOwner(userHandle); 1355 1356 DevicePolicyData policy = mUserData.get(userHandle); 1357 if (policy != null) { 1358 mUserData.remove(userHandle); 1359 } 1360 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1361 DEVICE_POLICIES_XML); 1362 policyFile.delete(); 1363 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1364 } 1365 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1366 } 1367 1368 void loadOwners() { 1369 synchronized (this) { 1370 mOwners.load(); 1371 findOwnerComponentIfNecessaryLocked(); 1372 migrateUserRestrictionsIfNecessaryLocked(); 1373 1374 // TODO PO may not have a class name either due to b/17652534. Address that too. 1375 1376 updateDeviceOwnerLocked(); 1377 } 1378 } 1379 1380 private void findOwnerComponentIfNecessaryLocked() { 1381 if (!mOwners.hasDeviceOwner()) { 1382 return; 1383 } 1384 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1385 1386 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1387 return; // Already a full component name. 1388 } 1389 1390 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1391 doComponentName.getPackageName(), 1392 mOwners.getDeviceOwnerUserId()); 1393 if (doComponent == null) { 1394 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1395 } else { 1396 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1397 doComponent, 1398 mOwners.getDeviceOwnerName(), 1399 mOwners.getDeviceOwnerUserId(), 1400 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1401 mOwners.writeDeviceOwner(); 1402 if (VERBOSE_LOG) { 1403 Log.v(LOG_TAG, "Device owner component filled in"); 1404 } 1405 } 1406 } 1407 1408 /** 1409 * We didn't use to persist user restrictions for each owners but only persisted in user 1410 * manager. 1411 */ 1412 private void migrateUserRestrictionsIfNecessaryLocked() { 1413 boolean migrated = false; 1414 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1415 // except for the "system controlled" ones. 1416 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1417 if (VERBOSE_LOG) { 1418 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1419 } 1420 migrated = true; 1421 1422 // Migrate user 0 restrictions to DO. 1423 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1424 1425 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1426 /* exceptionList =*/ null); 1427 1428 // Push DO user restrictions to user manager. 1429 pushUserRestrictions(UserHandle.USER_SYSTEM); 1430 1431 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1432 } 1433 1434 // Migrate for POs. We have a few more exceptions. 1435 final Set<String> normalExceptionList = Sets.newArraySet( 1436 UserManager.DISALLOW_OUTGOING_CALLS, 1437 UserManager.DISALLOW_SMS); 1438 1439 final Set<String> managedExceptionList = new ArraySet<>(normalExceptionList.size() + 1); 1440 managedExceptionList.addAll(normalExceptionList); 1441 managedExceptionList.add(UserManager.DISALLOW_WALLPAPER); 1442 1443 for (UserInfo ui : mUserManager.getUsers()) { 1444 final int userId = ui.id; 1445 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1446 if (userId != UserHandle.USER_SYSTEM) { 1447 if (VERBOSE_LOG) { 1448 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1449 } 1450 migrated = true; 1451 1452 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1453 1454 final Set<String> exceptionList = 1455 ui.isManagedProfile() ? managedExceptionList : normalExceptionList; 1456 1457 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1458 exceptionList); 1459 1460 // Note if a secondary user has no PO but has a DA that disables camera, we 1461 // don't get here and won't push the camera user restriction to UserManager 1462 // here. That's okay because we'll push user restrictions anyway when a user 1463 // starts. But we still do it because we want to let user manager persist 1464 // upon migration. 1465 pushUserRestrictions(userId); 1466 } 1467 1468 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1469 } 1470 } 1471 if (VERBOSE_LOG && migrated) { 1472 Log.v(LOG_TAG, "User restrictions migrated."); 1473 } 1474 } 1475 1476 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1477 Set<String> exceptionList) { 1478 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1479 user.getIdentifier()); 1480 1481 final Bundle newBaseRestrictions = new Bundle(); 1482 final Bundle newOwnerRestrictions = new Bundle(); 1483 1484 for (String key : origRestrictions.keySet()) { 1485 if (!origRestrictions.getBoolean(key)) { 1486 continue; 1487 } 1488 if (exceptionList!= null && exceptionList.contains(key)) { 1489 newBaseRestrictions.putBoolean(key, true); 1490 } else { 1491 newOwnerRestrictions.putBoolean(key, true); 1492 } 1493 } 1494 1495 if (VERBOSE_LOG) { 1496 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1497 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 1498 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1499 } 1500 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1501 newBaseRestrictions); 1502 1503 if (admin != null) { 1504 admin.ensureUserRestrictions().clear(); 1505 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1506 } else { 1507 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1508 } 1509 saveSettingsLocked(user.getIdentifier()); 1510 } 1511 1512 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1513 final DevicePolicyData policy = getUserData(userId); 1514 final int n = policy.mAdminList.size(); 1515 ComponentName found = null; 1516 int nFound = 0; 1517 for (int i = 0; i < n; i++) { 1518 final ActiveAdmin admin = policy.mAdminList.get(i); 1519 if (packageName.equals(admin.info.getPackageName())) { 1520 // Found! 1521 if (nFound == 0) { 1522 found = admin.info.getComponent(); 1523 } 1524 nFound++; 1525 } 1526 } 1527 if (nFound > 1) { 1528 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1529 } 1530 return found; 1531 } 1532 1533 /** 1534 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1535 * reminders. Clears alarm if no expirations are configured. 1536 */ 1537 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1538 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1539 final long now = System.currentTimeMillis(); 1540 final long timeToExpire = expiration - now; 1541 final long alarmTime; 1542 if (expiration == 0) { 1543 // No expirations are currently configured: Cancel alarm. 1544 alarmTime = 0; 1545 } else if (timeToExpire <= 0) { 1546 // The password has already expired: Repeat every 24 hours. 1547 alarmTime = now + MS_PER_DAY; 1548 } else { 1549 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1550 // the expiration time. 1551 long alarmInterval = timeToExpire % MS_PER_DAY; 1552 if (alarmInterval == 0) { 1553 alarmInterval = MS_PER_DAY; 1554 } 1555 alarmTime = now + alarmInterval; 1556 } 1557 1558 long token = mInjector.binderClearCallingIdentity(); 1559 try { 1560 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1561 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1562 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1563 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1564 new UserHandle(policy.mUserHandle)); 1565 am.cancel(pi); 1566 if (alarmTime != 0) { 1567 am.set(AlarmManager.RTC, alarmTime, pi); 1568 } 1569 } finally { 1570 mInjector.binderRestoreCallingIdentity(token); 1571 } 1572 } 1573 1574 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1575 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1576 if (admin != null 1577 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1578 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1579 return admin; 1580 } 1581 return null; 1582 } 1583 1584 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1585 throws SecurityException { 1586 final int callingUid = mInjector.binderGetCallingUid(); 1587 1588 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1589 if (result != null) { 1590 return result; 1591 } 1592 1593 if (who != null) { 1594 final int userId = UserHandle.getUserId(callingUid); 1595 final DevicePolicyData policy = getUserData(userId); 1596 ActiveAdmin admin = policy.mAdminMap.get(who); 1597 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1598 throw new SecurityException("Admin " + admin.info.getComponent() 1599 + " does not own the device"); 1600 } 1601 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1602 throw new SecurityException("Admin " + admin.info.getComponent() 1603 + " does not own the profile"); 1604 } 1605 throw new SecurityException("Admin " + admin.info.getComponent() 1606 + " did not specify uses-policy for: " 1607 + admin.info.getTagForPolicy(reqPolicy)); 1608 } else { 1609 throw new SecurityException("No active admin owned by uid " 1610 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 1611 } 1612 } 1613 1614 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1615 int uid) { 1616 // Try to find an admin which can use reqPolicy 1617 final int userId = UserHandle.getUserId(uid); 1618 final DevicePolicyData policy = getUserData(userId); 1619 if (who != null) { 1620 ActiveAdmin admin = policy.mAdminMap.get(who); 1621 if (admin == null) { 1622 throw new SecurityException("No active admin " + who); 1623 } 1624 if (admin.getUid() != uid) { 1625 throw new SecurityException("Admin " + who + " is not owned by uid " 1626 + mInjector.binderGetCallingUid()); 1627 } 1628 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 1629 return admin; 1630 } 1631 } else { 1632 for (ActiveAdmin admin : policy.mAdminList) { 1633 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 1634 userId)) { 1635 return admin; 1636 } 1637 } 1638 } 1639 1640 return null; 1641 } 1642 1643 @VisibleForTesting 1644 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 1645 int userId) { 1646 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 1647 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 1648 1649 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1650 return ownsDevice; 1651 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1652 // DO always has the PO power. 1653 return ownsDevice || ownsProfile; 1654 } else { 1655 return admin.info.usesPolicy(reqPolicy); 1656 } 1657 } 1658 1659 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1660 sendAdminCommandLocked(admin, action, null); 1661 } 1662 1663 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1664 sendAdminCommandLocked(admin, action, null, result); 1665 } 1666 1667 /** 1668 * Send an update to one specific admin, get notified when that admin returns a result. 1669 */ 1670 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1671 BroadcastReceiver result) { 1672 Intent intent = new Intent(action); 1673 intent.setComponent(admin.info.getComponent()); 1674 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1675 intent.putExtra("expiration", admin.passwordExpirationDate); 1676 } 1677 if (adminExtras != null) { 1678 intent.putExtras(adminExtras); 1679 } 1680 if (result != null) { 1681 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1682 null, result, mHandler, Activity.RESULT_OK, null, null); 1683 } else { 1684 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1685 } 1686 } 1687 1688 /** 1689 * Send an update to all admins of a user that enforce a specified policy. 1690 */ 1691 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1692 final DevicePolicyData policy = getUserData(userHandle); 1693 final int count = policy.mAdminList.size(); 1694 if (count > 0) { 1695 for (int i = 0; i < count; i++) { 1696 final ActiveAdmin admin = policy.mAdminList.get(i); 1697 if (admin.info.usesPolicy(reqPolicy)) { 1698 sendAdminCommandLocked(admin, action); 1699 } 1700 } 1701 } 1702 } 1703 1704 /** 1705 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1706 * enforce a specified policy. 1707 */ 1708 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1709 int userHandle) { 1710 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1711 for (UserInfo ui : profiles) { 1712 int id = ui.id; 1713 sendAdminCommandLocked(action, reqPolicy, id); 1714 } 1715 } 1716 1717 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 1718 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1719 if (admin != null) { 1720 synchronized (this) { 1721 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 1722 } 1723 sendAdminCommandLocked(admin, 1724 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1725 new BroadcastReceiver() { 1726 @Override 1727 public void onReceive(Context context, Intent intent) { 1728 synchronized (DevicePolicyManagerService.this) { 1729 int userHandle = admin.getUserHandle().getIdentifier(); 1730 DevicePolicyData policy = getUserData(userHandle); 1731 boolean doProxyCleanup = admin.info.usesPolicy( 1732 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1733 policy.mAdminList.remove(admin); 1734 policy.mAdminMap.remove(adminReceiver); 1735 validatePasswordOwnerLocked(policy); 1736 if (doProxyCleanup) { 1737 resetGlobalProxyLocked(getUserData(userHandle)); 1738 } 1739 saveSettingsLocked(userHandle); 1740 updateMaximumTimeToLockLocked(policy); 1741 policy.mRemovingAdmins.remove(adminReceiver); 1742 } 1743 // The removed admin might have disabled camera, so update user 1744 // restrictions. 1745 pushUserRestrictions(userHandle); 1746 } 1747 }); 1748 } 1749 } 1750 1751 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 1752 boolean throwForMissiongPermission) { 1753 if (!mHasFeature) { 1754 return null; 1755 } 1756 enforceFullCrossUsersPermission(userHandle); 1757 Intent resolveIntent = new Intent(); 1758 resolveIntent.setComponent(adminName); 1759 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1760 resolveIntent, 1761 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1762 userHandle); 1763 if (infos == null || infos.size() <= 0) { 1764 throw new IllegalArgumentException("Unknown admin: " + adminName); 1765 } 1766 1767 final ResolveInfo ri = infos.get(0); 1768 1769 if (!permission.BIND_DEVICE_ADMIN.equals(ri.activityInfo.permission)) { 1770 final String message = "DeviceAdminReceiver " + adminName + " must be protected with" 1771 + permission.BIND_DEVICE_ADMIN; 1772 Slog.w(LOG_TAG, message); 1773 if (throwForMissiongPermission && 1774 ri.activityInfo.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 1775 throw new IllegalArgumentException(message); 1776 } 1777 } 1778 1779 try { 1780 return new DeviceAdminInfo(mContext, ri); 1781 } catch (XmlPullParserException | IOException e) { 1782 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1783 e); 1784 return null; 1785 } 1786 } 1787 1788 private JournaledFile makeJournaledFile(int userHandle) { 1789 final String base = userHandle == UserHandle.USER_SYSTEM 1790 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 1791 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1792 DEVICE_POLICIES_XML).getAbsolutePath(); 1793 if (VERBOSE_LOG) { 1794 Log.v(LOG_TAG, "Opening " + base); 1795 } 1796 return new JournaledFile(new File(base), new File(base + ".tmp")); 1797 } 1798 1799 private void saveSettingsLocked(int userHandle) { 1800 DevicePolicyData policy = getUserData(userHandle); 1801 JournaledFile journal = makeJournaledFile(userHandle); 1802 FileOutputStream stream = null; 1803 try { 1804 stream = new FileOutputStream(journal.chooseForWrite(), false); 1805 XmlSerializer out = new FastXmlSerializer(); 1806 out.setOutput(stream, StandardCharsets.UTF_8.name()); 1807 out.startDocument(null, true); 1808 1809 out.startTag(null, "policies"); 1810 if (policy.mRestrictionsProvider != null) { 1811 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1812 policy.mRestrictionsProvider.flattenToString()); 1813 } 1814 if (policy.mUserSetupComplete) { 1815 out.attribute(null, ATTR_SETUP_COMPLETE, 1816 Boolean.toString(true)); 1817 } 1818 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 1819 out.attribute(null, ATTR_PERMISSION_POLICY, 1820 Integer.toString(policy.mPermissionPolicy)); 1821 } 1822 if (policy.mDelegatedCertInstallerPackage != null) { 1823 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 1824 policy.mDelegatedCertInstallerPackage); 1825 } 1826 if (policy.mApplicationRestrictionsManagingPackage != null) { 1827 out.attribute(null, ATTR_APPLICATION_RESTRICTIONS_MANAGER, 1828 policy.mApplicationRestrictionsManagingPackage); 1829 } 1830 1831 final int N = policy.mAdminList.size(); 1832 for (int i=0; i<N; i++) { 1833 ActiveAdmin ap = policy.mAdminList.get(i); 1834 if (ap != null) { 1835 out.startTag(null, "admin"); 1836 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1837 ap.writeToXml(out); 1838 out.endTag(null, "admin"); 1839 } 1840 } 1841 1842 if (policy.mPasswordOwner >= 0) { 1843 out.startTag(null, "password-owner"); 1844 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1845 out.endTag(null, "password-owner"); 1846 } 1847 1848 if (policy.mFailedPasswordAttempts != 0) { 1849 out.startTag(null, "failed-password-attempts"); 1850 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1851 out.endTag(null, "failed-password-attempts"); 1852 } 1853 1854 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1855 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1856 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1857 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1858 out.startTag(null, "active-password"); 1859 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1860 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1861 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1862 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1863 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1864 out.attribute(null, "numeric", Integer 1865 .toString(policy.mActivePasswordNumeric)); 1866 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1867 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1868 out.endTag(null, "active-password"); 1869 } 1870 1871 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1872 String component = policy.mLockTaskPackages.get(i); 1873 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 1874 out.attribute(null, "name", component); 1875 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 1876 } 1877 1878 if (policy.mStatusBarDisabled) { 1879 out.startTag(null, TAG_STATUS_BAR); 1880 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 1881 out.endTag(null, TAG_STATUS_BAR); 1882 } 1883 1884 if (policy.doNotAskCredentialsOnBoot) { 1885 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1886 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1887 } 1888 1889 out.endTag(null, "policies"); 1890 1891 out.endDocument(); 1892 stream.flush(); 1893 FileUtils.sync(stream); 1894 stream.close(); 1895 journal.commit(); 1896 sendChangedNotification(userHandle); 1897 } catch (IOException e) { 1898 Slog.w(LOG_TAG, "failed writing file", e); 1899 try { 1900 if (stream != null) { 1901 stream.close(); 1902 } 1903 } catch (IOException ex) { 1904 // Ignore 1905 } 1906 journal.rollback(); 1907 } 1908 } 1909 1910 private void sendChangedNotification(int userHandle) { 1911 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1912 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1913 long ident = mInjector.binderClearCallingIdentity(); 1914 try { 1915 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1916 } finally { 1917 mInjector.binderRestoreCallingIdentity(ident); 1918 } 1919 } 1920 1921 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1922 JournaledFile journal = makeJournaledFile(userHandle); 1923 FileInputStream stream = null; 1924 File file = journal.chooseForRead(); 1925 try { 1926 stream = new FileInputStream(file); 1927 XmlPullParser parser = Xml.newPullParser(); 1928 parser.setInput(stream, StandardCharsets.UTF_8.name()); 1929 1930 int type; 1931 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1932 && type != XmlPullParser.START_TAG) { 1933 } 1934 String tag = parser.getName(); 1935 if (!"policies".equals(tag)) { 1936 throw new XmlPullParserException( 1937 "Settings do not start with policies tag: found " + tag); 1938 } 1939 1940 // Extract the permission provider component name if available 1941 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1942 if (permissionProvider != null) { 1943 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1944 } 1945 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1946 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1947 policy.mUserSetupComplete = true; 1948 } 1949 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 1950 if (!TextUtils.isEmpty(permissionPolicy)) { 1951 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 1952 } 1953 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 1954 ATTR_DELEGATED_CERT_INSTALLER); 1955 policy.mApplicationRestrictionsManagingPackage = parser.getAttributeValue(null, 1956 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 1957 1958 type = parser.next(); 1959 int outerDepth = parser.getDepth(); 1960 policy.mLockTaskPackages.clear(); 1961 policy.mAdminList.clear(); 1962 policy.mAdminMap.clear(); 1963 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1964 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1965 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1966 continue; 1967 } 1968 tag = parser.getName(); 1969 if ("admin".equals(tag)) { 1970 String name = parser.getAttributeValue(null, "name"); 1971 try { 1972 DeviceAdminInfo dai = findAdmin( 1973 ComponentName.unflattenFromString(name), userHandle, 1974 /* throwForMissionPermission= */ false); 1975 if (VERBOSE_LOG 1976 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1977 != userHandle)) { 1978 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1979 + dai.getActivityInfo().applicationInfo.uid + " for user " 1980 + userHandle); 1981 } 1982 if (dai != null) { 1983 ActiveAdmin ap = new ActiveAdmin(dai); 1984 ap.readFromXml(parser); 1985 policy.mAdminMap.put(ap.info.getComponent(), ap); 1986 } 1987 } catch (RuntimeException e) { 1988 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1989 } 1990 } else if ("failed-password-attempts".equals(tag)) { 1991 policy.mFailedPasswordAttempts = Integer.parseInt( 1992 parser.getAttributeValue(null, "value")); 1993 } else if ("password-owner".equals(tag)) { 1994 policy.mPasswordOwner = Integer.parseInt( 1995 parser.getAttributeValue(null, "value")); 1996 } else if ("active-password".equals(tag)) { 1997 policy.mActivePasswordQuality = Integer.parseInt( 1998 parser.getAttributeValue(null, "quality")); 1999 policy.mActivePasswordLength = Integer.parseInt( 2000 parser.getAttributeValue(null, "length")); 2001 policy.mActivePasswordUpperCase = Integer.parseInt( 2002 parser.getAttributeValue(null, "uppercase")); 2003 policy.mActivePasswordLowerCase = Integer.parseInt( 2004 parser.getAttributeValue(null, "lowercase")); 2005 policy.mActivePasswordLetters = Integer.parseInt( 2006 parser.getAttributeValue(null, "letters")); 2007 policy.mActivePasswordNumeric = Integer.parseInt( 2008 parser.getAttributeValue(null, "numeric")); 2009 policy.mActivePasswordSymbols = Integer.parseInt( 2010 parser.getAttributeValue(null, "symbols")); 2011 policy.mActivePasswordNonLetter = Integer.parseInt( 2012 parser.getAttributeValue(null, "nonletter")); 2013 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2014 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2015 } else if (TAG_STATUS_BAR.equals(tag)) { 2016 policy.mStatusBarDisabled = Boolean.parseBoolean( 2017 parser.getAttributeValue(null, ATTR_DISABLED)); 2018 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2019 policy.doNotAskCredentialsOnBoot = true; 2020 } else { 2021 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2022 XmlUtils.skipCurrentTag(parser); 2023 } 2024 } 2025 } catch (FileNotFoundException e) { 2026 // Don't be noisy, this is normal if we haven't defined any policies. 2027 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2028 | IndexOutOfBoundsException e) { 2029 Slog.w(LOG_TAG, "failed parsing " + file, e); 2030 } 2031 try { 2032 if (stream != null) { 2033 stream.close(); 2034 } 2035 } catch (IOException e) { 2036 // Ignore 2037 } 2038 2039 // Generate a list of admins from the admin map 2040 policy.mAdminList.addAll(policy.mAdminMap.values()); 2041 2042 // Validate that what we stored for the password quality matches 2043 // sufficiently what is currently set. Note that this is only 2044 // a sanity check in case the two get out of sync; this should 2045 // never normally happen. 2046 final long identity = mInjector.binderClearCallingIdentity(); 2047 try { 2048 LockPatternUtils utils = mInjector.newLockPatternUtils(); 2049 if (utils.getActivePasswordQuality(userHandle) < policy.mActivePasswordQuality) { 2050 Slog.w(LOG_TAG, "Active password quality 0x" 2051 + Integer.toHexString(policy.mActivePasswordQuality) 2052 + " does not match actual quality 0x" 2053 + Integer.toHexString(utils.getActivePasswordQuality(userHandle))); 2054 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2055 policy.mActivePasswordLength = 0; 2056 policy.mActivePasswordUpperCase = 0; 2057 policy.mActivePasswordLowerCase = 0; 2058 policy.mActivePasswordLetters = 0; 2059 policy.mActivePasswordNumeric = 0; 2060 policy.mActivePasswordSymbols = 0; 2061 policy.mActivePasswordNonLetter = 0; 2062 } 2063 } finally { 2064 mInjector.binderRestoreCallingIdentity(identity); 2065 } 2066 2067 validatePasswordOwnerLocked(policy); 2068 updateMaximumTimeToLockLocked(policy); 2069 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2070 if (policy.mStatusBarDisabled) { 2071 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2072 } 2073 } 2074 2075 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2076 long ident = mInjector.binderClearCallingIdentity(); 2077 try { 2078 mInjector.getIActivityManager() 2079 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2080 } catch (RemoteException e) { 2081 // Not gonna happen. 2082 } finally { 2083 mInjector.binderRestoreCallingIdentity(ident); 2084 } 2085 } 2086 2087 private void updateDeviceOwnerLocked() { 2088 long ident = mInjector.binderClearCallingIdentity(); 2089 try { 2090 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2091 // user id and also protect all other DAs too. 2092 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2093 if (deviceOwnerComponent != null) { 2094 mInjector.getIActivityManager() 2095 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2096 } 2097 } catch (RemoteException e) { 2098 // Not gonna happen. 2099 } finally { 2100 mInjector.binderRestoreCallingIdentity(ident); 2101 } 2102 } 2103 2104 static void validateQualityConstant(int quality) { 2105 switch (quality) { 2106 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2107 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2108 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2109 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2110 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2111 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2112 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2113 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2114 return; 2115 } 2116 throw new IllegalArgumentException("Invalid quality constant: 0x" 2117 + Integer.toHexString(quality)); 2118 } 2119 2120 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2121 if (policy.mPasswordOwner >= 0) { 2122 boolean haveOwner = false; 2123 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2124 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2125 haveOwner = true; 2126 break; 2127 } 2128 } 2129 if (!haveOwner) { 2130 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2131 + " no longer active; disabling"); 2132 policy.mPasswordOwner = -1; 2133 } 2134 } 2135 } 2136 2137 @VisibleForTesting 2138 void systemReady(int phase) { 2139 if (!mHasFeature) { 2140 return; 2141 } 2142 switch (phase) { 2143 case SystemService.PHASE_LOCK_SETTINGS_READY: 2144 onLockSettingsReady(); 2145 break; 2146 case SystemService.PHASE_BOOT_COMPLETED: 2147 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2148 break; 2149 } 2150 } 2151 2152 private void onLockSettingsReady() { 2153 getUserData(UserHandle.USER_SYSTEM); 2154 loadOwners(); 2155 cleanUpOldUsers(); 2156 2157 onStartUser(UserHandle.USER_SYSTEM); 2158 2159 // Register an observer for watching for user setup complete. 2160 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 2161 // Initialize the user setup state, to handle the upgrade case. 2162 updateUserSetupComplete(); 2163 2164 List<String> packageList; 2165 synchronized (this) { 2166 packageList = getKeepUninstalledPackagesLocked(); 2167 } 2168 if (packageList != null) { 2169 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2170 } 2171 } 2172 2173 private void ensureDeviceOwnerUserStarted() { 2174 final int userId; 2175 synchronized (this) { 2176 if (!mOwners.hasDeviceOwner()) { 2177 return; 2178 } 2179 userId = mOwners.getDeviceOwnerUserId(); 2180 } 2181 if (VERBOSE_LOG) { 2182 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2183 } 2184 if (userId != UserHandle.USER_SYSTEM) { 2185 try { 2186 mInjector.getIActivityManager().startUserInBackground(userId); 2187 2188 // STOPSHIP Prevent the DO user from being killed. 2189 2190 } catch (RemoteException e) { 2191 Slog.w(LOG_TAG, "Exception starting user", e); 2192 } 2193 } 2194 } 2195 2196 private void onStartUser(int userId) { 2197 updateScreenCaptureDisabledInWindowManager(userId, 2198 getScreenCaptureDisabled(null, userId)); 2199 pushUserRestrictions(userId); 2200 } 2201 2202 private void cleanUpOldUsers() { 2203 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2204 // before reboot 2205 Set<Integer> usersWithProfileOwners; 2206 Set<Integer> usersWithData; 2207 synchronized(this) { 2208 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2209 usersWithData = new ArraySet<>(); 2210 for (int i = 0; i < mUserData.size(); i++) { 2211 usersWithData.add(mUserData.keyAt(i)); 2212 } 2213 } 2214 List<UserInfo> allUsers = mUserManager.getUsers(); 2215 2216 Set<Integer> deletedUsers = new ArraySet<>(); 2217 deletedUsers.addAll(usersWithProfileOwners); 2218 deletedUsers.addAll(usersWithData); 2219 for (UserInfo userInfo : allUsers) { 2220 deletedUsers.remove(userInfo.id); 2221 } 2222 for (Integer userId : deletedUsers) { 2223 removeUserData(userId); 2224 } 2225 } 2226 2227 private void handlePasswordExpirationNotification(int userHandle) { 2228 synchronized (this) { 2229 final long now = System.currentTimeMillis(); 2230 2231 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2232 for (UserInfo ui : profiles) { 2233 int profileUserHandle = ui.id; 2234 final DevicePolicyData policy = getUserData(profileUserHandle); 2235 final int count = policy.mAdminList.size(); 2236 if (count > 0) { 2237 for (int i = 0; i < count; i++) { 2238 final ActiveAdmin admin = policy.mAdminList.get(i); 2239 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2240 && admin.passwordExpirationTimeout > 0L 2241 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2242 && admin.passwordExpirationDate > 0L) { 2243 sendAdminCommandLocked(admin, 2244 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2245 } 2246 } 2247 } 2248 } 2249 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2250 } 2251 } 2252 2253 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 2254 @Override 2255 protected Void doInBackground(Intent... params) { 2256 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 2257 2258 if (userHandle == UserHandle.USER_ALL) { 2259 for (UserInfo userInfo : mUserManager.getUsers()) { 2260 manageNotification(userInfo.getUserHandle()); 2261 } 2262 } else { 2263 manageNotification(new UserHandle(userHandle)); 2264 } 2265 return null; 2266 } 2267 2268 private void manageNotification(UserHandle userHandle) { 2269 if (!mUserManager.isUserRunning(userHandle)) { 2270 return; 2271 } 2272 2273 // Call out to KeyChain to check for user-added CAs 2274 boolean hasCert = false; 2275 try { 2276 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 2277 try { 2278 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 2279 hasCert = true; 2280 } 2281 } catch (RemoteException e) { 2282 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2283 } finally { 2284 kcs.close(); 2285 } 2286 } catch (InterruptedException e) { 2287 Thread.currentThread().interrupt(); 2288 } catch (RuntimeException e) { 2289 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2290 } 2291 if (!hasCert) { 2292 mInjector.getNotificationManager().cancelAsUser( 2293 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2294 return; 2295 } 2296 2297 // Build and show a warning notification 2298 int smallIconId; 2299 String contentText; 2300 // TODO Why does it use the DO name? The cert APIs are all for PO. b/25772443 2301 final String ownerName = getDeviceOwnerName(); 2302 if (isManagedProfile(userHandle.getIdentifier())) { 2303 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 2304 smallIconId = R.drawable.stat_sys_certificate_info; 2305 } else if (ownerName != null) { 2306 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 2307 smallIconId = R.drawable.stat_sys_certificate_info; 2308 } else { 2309 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2310 smallIconId = android.R.drawable.stat_sys_warning; 2311 } 2312 2313 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2314 dialogIntent.setFlags( 2315 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2316 dialogIntent.setPackage("com.android.settings"); 2317 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2318 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 2319 2320 final Context userContext; 2321 try { 2322 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 2323 } catch (PackageManager.NameNotFoundException e) { 2324 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2325 return; 2326 } 2327 final Notification noti = new Notification.Builder(userContext) 2328 .setSmallIcon(smallIconId) 2329 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 2330 .setContentText(contentText) 2331 .setContentIntent(notifyIntent) 2332 .setPriority(Notification.PRIORITY_HIGH) 2333 .setShowWhen(false) 2334 .setColor(mContext.getColor( 2335 com.android.internal.R.color.system_notification_accent_color)) 2336 .build(); 2337 2338 mInjector.getNotificationManager().notifyAsUser( 2339 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2340 } 2341 } 2342 2343 /** 2344 * @param adminReceiver The admin to add 2345 * @param refreshing true = update an active admin, no error 2346 */ 2347 @Override 2348 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2349 if (!mHasFeature) { 2350 return; 2351 } 2352 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2353 } 2354 2355 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2356 Bundle onEnableData) { 2357 mContext.enforceCallingOrSelfPermission( 2358 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2359 enforceFullCrossUsersPermission(userHandle); 2360 2361 DevicePolicyData policy = getUserData(userHandle); 2362 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 2363 /* throwForMissionPermission= */ true); 2364 if (info == null) { 2365 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2366 } 2367 synchronized (this) { 2368 long ident = mInjector.binderClearCallingIdentity(); 2369 try { 2370 if (!refreshing 2371 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 2372 throw new IllegalArgumentException("Admin is already added"); 2373 } 2374 ActiveAdmin newAdmin = new ActiveAdmin(info); 2375 policy.mAdminMap.put(adminReceiver, newAdmin); 2376 int replaceIndex = -1; 2377 final int N = policy.mAdminList.size(); 2378 for (int i=0; i < N; i++) { 2379 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2380 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2381 replaceIndex = i; 2382 break; 2383 } 2384 } 2385 if (replaceIndex == -1) { 2386 policy.mAdminList.add(newAdmin); 2387 enableIfNecessary(info.getPackageName(), userHandle); 2388 } else { 2389 policy.mAdminList.set(replaceIndex, newAdmin); 2390 } 2391 saveSettingsLocked(userHandle); 2392 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2393 onEnableData, null); 2394 } finally { 2395 mInjector.binderRestoreCallingIdentity(ident); 2396 } 2397 } 2398 } 2399 2400 @Override 2401 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2402 if (!mHasFeature) { 2403 return false; 2404 } 2405 enforceFullCrossUsersPermission(userHandle); 2406 synchronized (this) { 2407 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2408 } 2409 } 2410 2411 @Override 2412 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2413 if (!mHasFeature) { 2414 return false; 2415 } 2416 enforceFullCrossUsersPermission(userHandle); 2417 synchronized (this) { 2418 DevicePolicyData policyData = getUserData(userHandle); 2419 return policyData.mRemovingAdmins.contains(adminReceiver); 2420 } 2421 } 2422 2423 @Override 2424 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2425 if (!mHasFeature) { 2426 return false; 2427 } 2428 enforceFullCrossUsersPermission(userHandle); 2429 synchronized (this) { 2430 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2431 if (administrator == null) { 2432 throw new SecurityException("No active admin " + adminReceiver); 2433 } 2434 return administrator.info.usesPolicy(policyId); 2435 } 2436 } 2437 2438 @Override 2439 @SuppressWarnings("unchecked") 2440 public List<ComponentName> getActiveAdmins(int userHandle) { 2441 if (!mHasFeature) { 2442 return Collections.EMPTY_LIST; 2443 } 2444 2445 enforceFullCrossUsersPermission(userHandle); 2446 synchronized (this) { 2447 DevicePolicyData policy = getUserData(userHandle); 2448 final int N = policy.mAdminList.size(); 2449 if (N <= 0) { 2450 return null; 2451 } 2452 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2453 for (int i=0; i<N; i++) { 2454 res.add(policy.mAdminList.get(i).info.getComponent()); 2455 } 2456 return res; 2457 } 2458 } 2459 2460 @Override 2461 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2462 if (!mHasFeature) { 2463 return false; 2464 } 2465 enforceFullCrossUsersPermission(userHandle); 2466 synchronized (this) { 2467 DevicePolicyData policy = getUserData(userHandle); 2468 final int N = policy.mAdminList.size(); 2469 for (int i=0; i<N; i++) { 2470 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2471 return true; 2472 } 2473 } 2474 return false; 2475 } 2476 } 2477 2478 @Override 2479 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 2480 if (!mHasFeature) { 2481 return; 2482 } 2483 enforceFullCrossUsersPermission(userHandle); 2484 synchronized (this) { 2485 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2486 if (admin == null) { 2487 return; 2488 } 2489 if (admin.getUid() != mInjector.binderGetCallingUid()) { 2490 // Active device/profile owners must remain active admins. 2491 if (isDeviceOwner(adminReceiver, userHandle) 2492 || isProfileOwner(adminReceiver, userHandle)) { 2493 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 2494 adminReceiver); 2495 return; 2496 } 2497 mContext.enforceCallingOrSelfPermission( 2498 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2499 } 2500 long ident = mInjector.binderClearCallingIdentity(); 2501 try { 2502 removeActiveAdminLocked(adminReceiver, userHandle); 2503 } finally { 2504 mInjector.binderRestoreCallingIdentity(ident); 2505 } 2506 } 2507 } 2508 2509 @Override 2510 public void setPasswordQuality(ComponentName who, int quality) { 2511 if (!mHasFeature) { 2512 return; 2513 } 2514 Preconditions.checkNotNull(who, "ComponentName is null"); 2515 final int userHandle = UserHandle.getCallingUserId(); 2516 validateQualityConstant(quality); 2517 2518 synchronized (this) { 2519 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2520 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2521 if (ap.passwordQuality != quality) { 2522 ap.passwordQuality = quality; 2523 saveSettingsLocked(userHandle); 2524 } 2525 } 2526 } 2527 2528 @Override 2529 public int getPasswordQuality(ComponentName who, int userHandle) { 2530 if (!mHasFeature) { 2531 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2532 } 2533 enforceFullCrossUsersPermission(userHandle); 2534 synchronized (this) { 2535 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2536 2537 if (who != null) { 2538 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2539 return admin != null ? admin.passwordQuality : mode; 2540 } 2541 2542 // Return strictest policy for this user and profiles that are visible from this user. 2543 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2544 for (UserInfo userInfo : profiles) { 2545 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2546 final int N = policy.mAdminList.size(); 2547 for (int i=0; i<N; i++) { 2548 ActiveAdmin admin = policy.mAdminList.get(i); 2549 if (mode < admin.passwordQuality) { 2550 mode = admin.passwordQuality; 2551 } 2552 } 2553 } 2554 return mode; 2555 } 2556 } 2557 2558 @Override 2559 public void setPasswordMinimumLength(ComponentName who, int length) { 2560 if (!mHasFeature) { 2561 return; 2562 } 2563 Preconditions.checkNotNull(who, "ComponentName is null"); 2564 final int userHandle = UserHandle.getCallingUserId(); 2565 synchronized (this) { 2566 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2567 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2568 if (ap.minimumPasswordLength != length) { 2569 ap.minimumPasswordLength = length; 2570 saveSettingsLocked(userHandle); 2571 } 2572 } 2573 } 2574 2575 @Override 2576 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 2577 if (!mHasFeature) { 2578 return 0; 2579 } 2580 enforceFullCrossUsersPermission(userHandle); 2581 synchronized (this) { 2582 int length = 0; 2583 2584 if (who != null) { 2585 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2586 return admin != null ? admin.minimumPasswordLength : length; 2587 } 2588 2589 // Return strictest policy for this user and profiles that are visible from this user. 2590 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2591 for (UserInfo userInfo : profiles) { 2592 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2593 final int N = policy.mAdminList.size(); 2594 for (int i=0; i<N; i++) { 2595 ActiveAdmin admin = policy.mAdminList.get(i); 2596 if (length < admin.minimumPasswordLength) { 2597 length = admin.minimumPasswordLength; 2598 } 2599 } 2600 } 2601 return length; 2602 } 2603 } 2604 2605 @Override 2606 public void setPasswordHistoryLength(ComponentName who, int length) { 2607 if (!mHasFeature) { 2608 return; 2609 } 2610 Preconditions.checkNotNull(who, "ComponentName is null"); 2611 final int userHandle = UserHandle.getCallingUserId(); 2612 synchronized (this) { 2613 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2614 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2615 if (ap.passwordHistoryLength != length) { 2616 ap.passwordHistoryLength = length; 2617 saveSettingsLocked(userHandle); 2618 } 2619 } 2620 } 2621 2622 @Override 2623 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 2624 if (!mHasFeature) { 2625 return 0; 2626 } 2627 enforceFullCrossUsersPermission(userHandle); 2628 synchronized (this) { 2629 int length = 0; 2630 2631 if (who != null) { 2632 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2633 return admin != null ? admin.passwordHistoryLength : length; 2634 } 2635 2636 // Return strictest policy for this user and profiles that are visible from this user. 2637 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2638 for (UserInfo userInfo : profiles) { 2639 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2640 final int N = policy.mAdminList.size(); 2641 for (int i = 0; i < N; i++) { 2642 ActiveAdmin admin = policy.mAdminList.get(i); 2643 if (length < admin.passwordHistoryLength) { 2644 length = admin.passwordHistoryLength; 2645 } 2646 } 2647 } 2648 return length; 2649 } 2650 } 2651 2652 @Override 2653 public void setPasswordExpirationTimeout(ComponentName who, long timeout) { 2654 if (!mHasFeature) { 2655 return; 2656 } 2657 Preconditions.checkNotNull(who, "ComponentName is null"); 2658 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 2659 final int userHandle = UserHandle.getCallingUserId(); 2660 synchronized (this) { 2661 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2662 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2663 // Calling this API automatically bumps the expiration date 2664 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2665 ap.passwordExpirationDate = expiration; 2666 ap.passwordExpirationTimeout = timeout; 2667 if (timeout > 0L) { 2668 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2669 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2670 .format(new Date(expiration))); 2671 } 2672 saveSettingsLocked(userHandle); 2673 // in case this is the first one 2674 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2675 } 2676 } 2677 2678 /** 2679 * Return a single admin's expiration cycle time, or the min of all cycle times. 2680 * Returns 0 if not configured. 2681 */ 2682 @Override 2683 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2684 if (!mHasFeature) { 2685 return 0L; 2686 } 2687 enforceFullCrossUsersPermission(userHandle); 2688 synchronized (this) { 2689 long timeout = 0L; 2690 2691 if (who != null) { 2692 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2693 return admin != null ? admin.passwordExpirationTimeout : timeout; 2694 } 2695 2696 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2697 for (UserInfo userInfo : profiles) { 2698 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2699 final int N = policy.mAdminList.size(); 2700 for (int i = 0; i < N; i++) { 2701 ActiveAdmin admin = policy.mAdminList.get(i); 2702 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2703 && timeout > admin.passwordExpirationTimeout)) { 2704 timeout = admin.passwordExpirationTimeout; 2705 } 2706 } 2707 } 2708 return timeout; 2709 } 2710 } 2711 2712 @Override 2713 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2714 final int userId = UserHandle.getCallingUserId(); 2715 List<String> changedProviders = null; 2716 2717 synchronized (this) { 2718 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2719 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2720 if (activeAdmin.crossProfileWidgetProviders == null) { 2721 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2722 } 2723 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2724 if (!providers.contains(packageName)) { 2725 providers.add(packageName); 2726 changedProviders = new ArrayList<>(providers); 2727 saveSettingsLocked(userId); 2728 } 2729 } 2730 2731 if (changedProviders != null) { 2732 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2733 return true; 2734 } 2735 2736 return false; 2737 } 2738 2739 @Override 2740 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2741 final int userId = UserHandle.getCallingUserId(); 2742 List<String> changedProviders = null; 2743 2744 synchronized (this) { 2745 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2746 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2747 if (activeAdmin.crossProfileWidgetProviders == null) { 2748 return false; 2749 } 2750 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2751 if (providers.remove(packageName)) { 2752 changedProviders = new ArrayList<>(providers); 2753 saveSettingsLocked(userId); 2754 } 2755 } 2756 2757 if (changedProviders != null) { 2758 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2759 return true; 2760 } 2761 2762 return false; 2763 } 2764 2765 @Override 2766 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2767 synchronized (this) { 2768 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2769 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2770 if (activeAdmin.crossProfileWidgetProviders == null 2771 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2772 return null; 2773 } 2774 if (mInjector.binderIsCallingUidMyUid()) { 2775 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2776 } else { 2777 return activeAdmin.crossProfileWidgetProviders; 2778 } 2779 } 2780 } 2781 2782 /** 2783 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2784 * Returns 0 if not configured. 2785 */ 2786 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2787 long timeout = 0L; 2788 2789 if (who != null) { 2790 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2791 return admin != null ? admin.passwordExpirationDate : timeout; 2792 } 2793 2794 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2795 for (UserInfo userInfo : profiles) { 2796 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2797 final int N = policy.mAdminList.size(); 2798 for (int i = 0; i < N; i++) { 2799 ActiveAdmin admin = policy.mAdminList.get(i); 2800 if (timeout == 0L || (admin.passwordExpirationDate != 0 2801 && timeout > admin.passwordExpirationDate)) { 2802 timeout = admin.passwordExpirationDate; 2803 } 2804 } 2805 } 2806 return timeout; 2807 } 2808 2809 @Override 2810 public long getPasswordExpiration(ComponentName who, int userHandle) { 2811 if (!mHasFeature) { 2812 return 0L; 2813 } 2814 enforceFullCrossUsersPermission(userHandle); 2815 synchronized (this) { 2816 return getPasswordExpirationLocked(who, userHandle); 2817 } 2818 } 2819 2820 @Override 2821 public void setPasswordMinimumUpperCase(ComponentName who, int length) { 2822 if (!mHasFeature) { 2823 return; 2824 } 2825 Preconditions.checkNotNull(who, "ComponentName is null"); 2826 final int userHandle = UserHandle.getCallingUserId(); 2827 synchronized (this) { 2828 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2829 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2830 if (ap.minimumPasswordUpperCase != length) { 2831 ap.minimumPasswordUpperCase = length; 2832 saveSettingsLocked(userHandle); 2833 } 2834 } 2835 } 2836 2837 @Override 2838 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2839 if (!mHasFeature) { 2840 return 0; 2841 } 2842 enforceFullCrossUsersPermission(userHandle); 2843 synchronized (this) { 2844 int length = 0; 2845 2846 if (who != null) { 2847 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2848 return admin != null ? admin.minimumPasswordUpperCase : length; 2849 } 2850 2851 // Return strictest policy for this user and profiles that are visible from this user. 2852 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2853 for (UserInfo userInfo : profiles) { 2854 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2855 final int N = policy.mAdminList.size(); 2856 for (int i=0; i<N; i++) { 2857 ActiveAdmin admin = policy.mAdminList.get(i); 2858 if (length < admin.minimumPasswordUpperCase) { 2859 length = admin.minimumPasswordUpperCase; 2860 } 2861 } 2862 } 2863 return length; 2864 } 2865 } 2866 2867 @Override 2868 public void setPasswordMinimumLowerCase(ComponentName who, int length) { 2869 Preconditions.checkNotNull(who, "ComponentName is null"); 2870 final int userHandle = UserHandle.getCallingUserId(); 2871 synchronized (this) { 2872 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2873 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2874 if (ap.minimumPasswordLowerCase != length) { 2875 ap.minimumPasswordLowerCase = length; 2876 saveSettingsLocked(userHandle); 2877 } 2878 } 2879 } 2880 2881 @Override 2882 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2883 if (!mHasFeature) { 2884 return 0; 2885 } 2886 enforceFullCrossUsersPermission(userHandle); 2887 synchronized (this) { 2888 int length = 0; 2889 2890 if (who != null) { 2891 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2892 return admin != null ? admin.minimumPasswordLowerCase : length; 2893 } 2894 2895 // Return strictest policy for this user and profiles that are visible from this user. 2896 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2897 for (UserInfo userInfo : profiles) { 2898 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2899 final int N = policy.mAdminList.size(); 2900 for (int i=0; i<N; i++) { 2901 ActiveAdmin admin = policy.mAdminList.get(i); 2902 if (length < admin.minimumPasswordLowerCase) { 2903 length = admin.minimumPasswordLowerCase; 2904 } 2905 } 2906 } 2907 return length; 2908 } 2909 } 2910 2911 @Override 2912 public void setPasswordMinimumLetters(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.minimumPasswordLetters != length) { 2922 ap.minimumPasswordLetters = length; 2923 saveSettingsLocked(userHandle); 2924 } 2925 } 2926 } 2927 2928 @Override 2929 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2930 if (!mHasFeature) { 2931 return 0; 2932 } 2933 enforceFullCrossUsersPermission(userHandle); 2934 synchronized (this) { 2935 int length = 0; 2936 2937 if (who != null) { 2938 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2939 return admin != null ? admin.minimumPasswordLetters : 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.minimumPasswordLetters) { 2953 length = admin.minimumPasswordLetters; 2954 } 2955 } 2956 } 2957 return length; 2958 } 2959 } 2960 2961 @Override 2962 public void setPasswordMinimumNumeric(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.minimumPasswordNumeric != length) { 2972 ap.minimumPasswordNumeric = length; 2973 saveSettingsLocked(userHandle); 2974 } 2975 } 2976 } 2977 2978 @Override 2979 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2980 if (!mHasFeature) { 2981 return 0; 2982 } 2983 enforceFullCrossUsersPermission(userHandle); 2984 synchronized (this) { 2985 int length = 0; 2986 2987 if (who != null) { 2988 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2989 return admin != null ? admin.minimumPasswordNumeric : 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.minimumPasswordNumeric) { 3003 length = admin.minimumPasswordNumeric; 3004 } 3005 } 3006 } 3007 return length; 3008 } 3009 } 3010 3011 @Override 3012 public void setPasswordMinimumSymbols(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.minimumPasswordSymbols != length) { 3022 ap.minimumPasswordSymbols = length; 3023 saveSettingsLocked(userHandle); 3024 } 3025 } 3026 } 3027 3028 @Override 3029 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 3030 if (!mHasFeature) { 3031 return 0; 3032 } 3033 enforceFullCrossUsersPermission(userHandle); 3034 synchronized (this) { 3035 int length = 0; 3036 3037 if (who != null) { 3038 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3039 return admin != null ? admin.minimumPasswordSymbols : 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.minimumPasswordSymbols) { 3053 length = admin.minimumPasswordSymbols; 3054 } 3055 } 3056 } 3057 return length; 3058 } 3059 } 3060 3061 @Override 3062 public void setPasswordMinimumNonLetter(ComponentName who, int length) { 3063 if (!mHasFeature) { 3064 return; 3065 } 3066 Preconditions.checkNotNull(who, "ComponentName is null"); 3067 final int userHandle = UserHandle.getCallingUserId(); 3068 synchronized (this) { 3069 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3070 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3071 if (ap.minimumPasswordNonLetter != length) { 3072 ap.minimumPasswordNonLetter = length; 3073 saveSettingsLocked(userHandle); 3074 } 3075 } 3076 } 3077 3078 @Override 3079 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 3080 if (!mHasFeature) { 3081 return 0; 3082 } 3083 enforceFullCrossUsersPermission(userHandle); 3084 synchronized (this) { 3085 int length = 0; 3086 3087 if (who != null) { 3088 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3089 return admin != null ? admin.minimumPasswordNonLetter : length; 3090 } 3091 3092 // Return strictest policy for this user and profiles that are visible from this user. 3093 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3094 for (UserInfo userInfo : profiles) { 3095 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3096 final int N = policy.mAdminList.size(); 3097 for (int i=0; i<N; i++) { 3098 ActiveAdmin admin = policy.mAdminList.get(i); 3099 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3100 continue; 3101 } 3102 if (length < admin.minimumPasswordNonLetter) { 3103 length = admin.minimumPasswordNonLetter; 3104 } 3105 } 3106 } 3107 return length; 3108 } 3109 } 3110 3111 @Override 3112 public boolean isActivePasswordSufficient(int userHandle) { 3113 if (!mHasFeature) { 3114 return true; 3115 } 3116 enforceFullCrossUsersPermission(userHandle); 3117 3118 synchronized (this) { 3119 int id = getCredentialOwner(userHandle); 3120 DevicePolicyData policy = getUserDataUnchecked(id); 3121 3122 // This API can only be called by an active device admin, 3123 // so try to retrieve it to check that the caller is one. 3124 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3125 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 3126 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 3127 return false; 3128 } 3129 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3130 return true; 3131 } 3132 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 3133 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 3134 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 3135 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 3136 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 3137 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 3138 } 3139 } 3140 3141 @Override 3142 public int getCurrentFailedPasswordAttempts(int userHandle) { 3143 synchronized (this) { 3144 // This API can only be called by an active device admin, 3145 // so try to retrieve it to check that the caller is one. 3146 getActiveAdminForCallerLocked(null, 3147 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3148 3149 int credentialOwnerId = getCredentialOwner(userHandle); 3150 DevicePolicyData policy = getUserDataUnchecked(credentialOwnerId); 3151 3152 return policy.mFailedPasswordAttempts; 3153 } 3154 } 3155 3156 @Override 3157 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) { 3158 if (!mHasFeature) { 3159 return; 3160 } 3161 Preconditions.checkNotNull(who, "ComponentName is null"); 3162 final int userHandle = UserHandle.getCallingUserId(); 3163 synchronized (this) { 3164 // This API can only be called by an active device admin, 3165 // so try to retrieve it to check that the caller is one. 3166 getActiveAdminForCallerLocked(who, 3167 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3168 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3169 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3170 if (ap.maximumFailedPasswordsForWipe != num) { 3171 ap.maximumFailedPasswordsForWipe = num; 3172 saveSettingsLocked(userHandle); 3173 } 3174 } 3175 } 3176 3177 @Override 3178 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 3179 if (!mHasFeature) { 3180 return 0; 3181 } 3182 enforceFullCrossUsersPermission(userHandle); 3183 synchronized (this) { 3184 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 3185 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3186 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3187 } 3188 } 3189 3190 @Override 3191 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle) { 3192 if (!mHasFeature) { 3193 return UserHandle.USER_NULL; 3194 } 3195 enforceFullCrossUsersPermission(userHandle); 3196 synchronized (this) { 3197 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3198 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3199 } 3200 } 3201 3202 /** 3203 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 3204 * profiles that are visible from this user. If the policy for the primary and any other profile 3205 * are equal, it returns the admin for the primary profile. 3206 * Returns {@code null} if none of them have that policy set. 3207 */ 3208 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 3209 int count = 0; 3210 ActiveAdmin strictestAdmin = null; 3211 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3212 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3213 for (ActiveAdmin admin : policy.mAdminList) { 3214 if (admin.maximumFailedPasswordsForWipe == 3215 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3216 continue; // No max number of failed passwords policy set for this profile. 3217 } 3218 3219 // We always favor the primary profile if several profiles have the same value set. 3220 if (count == 0 || 3221 count > admin.maximumFailedPasswordsForWipe || 3222 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 3223 count = admin.maximumFailedPasswordsForWipe; 3224 strictestAdmin = admin; 3225 } 3226 } 3227 } 3228 return strictestAdmin; 3229 } 3230 3231 @Override 3232 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 3233 if (!mHasFeature) { 3234 return false; 3235 } 3236 final int callingUid = mInjector.binderGetCallingUid(); 3237 final int userHandle = mInjector.userHandleGetCallingUserId(); 3238 3239 long ident = mInjector.binderClearCallingIdentity(); 3240 try { 3241 if (getCredentialOwner(userHandle) != userHandle) { 3242 throw new SecurityException("You can not change password for this profile because" 3243 + " it shares the password with the owner profile"); 3244 } 3245 } finally { 3246 mInjector.binderRestoreCallingIdentity(ident); 3247 } 3248 3249 String password = passwordOrNull != null ? passwordOrNull : ""; 3250 3251 int quality; 3252 synchronized (this) { 3253 // If caller has PO (or DO), it can clear the password, so see if that's the case 3254 // first. 3255 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 3256 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 3257 if (admin == null) { 3258 // Otherwise, make sure the caller has any active admin with the right policy. 3259 admin = getActiveAdminForCallerLocked(null, 3260 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3261 } 3262 3263 final ComponentName adminComponent = admin.info.getComponent(); 3264 3265 // As of N, only profile owners and device owners can reset the password. 3266 if (!(isProfileOwner(adminComponent, userHandle) 3267 || isDeviceOwner(adminComponent, userHandle))) { 3268 final boolean preN = getTargetSdk(admin.info.getPackageName(), userHandle) 3269 < android.os.Build.VERSION_CODES.N; 3270 // As of N, password resetting to empty/null is not allowed anymore. 3271 // TODO Should we allow DO/PO to set an empty password? 3272 if (TextUtils.isEmpty(password)) { 3273 if (!preN) { 3274 throw new SecurityException("Cannot call with null password"); 3275 } else { 3276 Slog.e(LOG_TAG, "Cannot call with null password"); 3277 return false; 3278 } 3279 } 3280 // As of N, password cannot be changed by the admin if it is already set. 3281 if (isLockScreenSecureUnchecked(userHandle)) { 3282 if (!preN) { 3283 throw new SecurityException("Admin cannot change current password"); 3284 } else { 3285 Slog.e(LOG_TAG, "Admin cannot change current password"); 3286 return false; 3287 } 3288 } 3289 } 3290 quality = getPasswordQuality(null, userHandle); 3291 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3292 int realQuality = LockPatternUtils.computePasswordQuality(password); 3293 if (realQuality < quality 3294 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3295 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3296 + Integer.toHexString(realQuality) 3297 + " does not meet required quality 0x" 3298 + Integer.toHexString(quality)); 3299 return false; 3300 } 3301 quality = Math.max(realQuality, quality); 3302 } 3303 int length = getPasswordMinimumLength(null, userHandle); 3304 if (password.length() < length) { 3305 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3306 + " does not meet required length " + length); 3307 return false; 3308 } 3309 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3310 int letters = 0; 3311 int uppercase = 0; 3312 int lowercase = 0; 3313 int numbers = 0; 3314 int symbols = 0; 3315 int nonletter = 0; 3316 for (int i = 0; i < password.length(); i++) { 3317 char c = password.charAt(i); 3318 if (c >= 'A' && c <= 'Z') { 3319 letters++; 3320 uppercase++; 3321 } else if (c >= 'a' && c <= 'z') { 3322 letters++; 3323 lowercase++; 3324 } else if (c >= '0' && c <= '9') { 3325 numbers++; 3326 nonletter++; 3327 } else { 3328 symbols++; 3329 nonletter++; 3330 } 3331 } 3332 int neededLetters = getPasswordMinimumLetters(null, userHandle); 3333 if(letters < neededLetters) { 3334 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 3335 + " does not meet required number of letters " + neededLetters); 3336 return false; 3337 } 3338 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 3339 if (numbers < neededNumbers) { 3340 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 3341 + " does not meet required number of numerical digits " 3342 + neededNumbers); 3343 return false; 3344 } 3345 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 3346 if (lowercase < neededLowerCase) { 3347 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 3348 + " does not meet required number of lowercase letters " 3349 + neededLowerCase); 3350 return false; 3351 } 3352 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 3353 if (uppercase < neededUpperCase) { 3354 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 3355 + " does not meet required number of uppercase letters " 3356 + neededUpperCase); 3357 return false; 3358 } 3359 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 3360 if (symbols < neededSymbols) { 3361 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 3362 + " does not meet required number of special symbols " + neededSymbols); 3363 return false; 3364 } 3365 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 3366 if (nonletter < neededNonLetter) { 3367 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 3368 + " does not meet required number of non-letter characters " 3369 + neededNonLetter); 3370 return false; 3371 } 3372 } 3373 } 3374 3375 DevicePolicyData policy = getUserData(userHandle); 3376 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 3377 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 3378 return false; 3379 } 3380 3381 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 3382 boolean doNotAskCredentialsOnBoot = 3383 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 3384 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 3385 setDoNotAskCredentialsOnBoot(); 3386 } 3387 3388 // Don't do this with the lock held, because it is going to call 3389 // back in to the service. 3390 ident = mInjector.binderClearCallingIdentity(); 3391 try { 3392 LockPatternUtils utils = mInjector.newLockPatternUtils(); 3393 if (!TextUtils.isEmpty(password)) { 3394 utils.saveLockPassword(password, null, quality, userHandle); 3395 } else { 3396 utils.clearLock(userHandle); 3397 } 3398 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 3399 if (requireEntry) { 3400 utils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 3401 UserHandle.USER_ALL); 3402 } 3403 synchronized (this) { 3404 int newOwner = requireEntry ? callingUid : -1; 3405 if (policy.mPasswordOwner != newOwner) { 3406 policy.mPasswordOwner = newOwner; 3407 saveSettingsLocked(userHandle); 3408 } 3409 } 3410 } finally { 3411 mInjector.binderRestoreCallingIdentity(ident); 3412 } 3413 3414 return true; 3415 } 3416 3417 private boolean isLockScreenSecureUnchecked(int userId) { 3418 long ident = mInjector.binderClearCallingIdentity(); 3419 try { 3420 return mInjector.newLockPatternUtils().isSecure(userId); 3421 } finally { 3422 mInjector.binderRestoreCallingIdentity(ident); 3423 } 3424 } 3425 3426 private void setDoNotAskCredentialsOnBoot() { 3427 synchronized (this) { 3428 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3429 if (!policyData.doNotAskCredentialsOnBoot) { 3430 policyData.doNotAskCredentialsOnBoot = true; 3431 saveSettingsLocked(UserHandle.USER_SYSTEM); 3432 } 3433 } 3434 } 3435 3436 @Override 3437 public boolean getDoNotAskCredentialsOnBoot() { 3438 mContext.enforceCallingOrSelfPermission( 3439 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 3440 synchronized (this) { 3441 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3442 return policyData.doNotAskCredentialsOnBoot; 3443 } 3444 } 3445 3446 @Override 3447 public void setMaximumTimeToLock(ComponentName who, long timeMs) { 3448 if (!mHasFeature) { 3449 return; 3450 } 3451 Preconditions.checkNotNull(who, "ComponentName is null"); 3452 final int userHandle = UserHandle.getCallingUserId(); 3453 synchronized (this) { 3454 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3455 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3456 if (ap.maximumTimeToUnlock != timeMs) { 3457 ap.maximumTimeToUnlock = timeMs; 3458 saveSettingsLocked(userHandle); 3459 updateMaximumTimeToLockLocked(getUserData(userHandle)); 3460 } 3461 } 3462 } 3463 3464 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 3465 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 3466 if (policy.mLastMaximumTimeToLock == timeMs) { 3467 return; 3468 } 3469 3470 long ident = mInjector.binderClearCallingIdentity(); 3471 try { 3472 if (timeMs <= 0) { 3473 timeMs = Integer.MAX_VALUE; 3474 } else { 3475 // Make sure KEEP_SCREEN_ON is disabled, since that 3476 // would allow bypassing of the maximum time to lock. 3477 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 3478 } 3479 3480 policy.mLastMaximumTimeToLock = timeMs; 3481 // TODO It can overflow. Cap it. 3482 mInjector.getPowerManagerInternal() 3483 .setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 3484 } finally { 3485 mInjector.binderRestoreCallingIdentity(ident); 3486 } 3487 } 3488 3489 @Override 3490 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 3491 if (!mHasFeature) { 3492 return 0; 3493 } 3494 enforceFullCrossUsersPermission(userHandle); 3495 synchronized (this) { 3496 long time = 0; 3497 3498 if (who != null) { 3499 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3500 return admin != null ? admin.maximumTimeToUnlock : time; 3501 } 3502 3503 // Return strictest policy for this user and profiles that are visible from this user. 3504 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3505 for (UserInfo userInfo : profiles) { 3506 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3507 final int N = policy.mAdminList.size(); 3508 for (int i=0; i<N; i++) { 3509 ActiveAdmin admin = policy.mAdminList.get(i); 3510 if (time == 0) { 3511 time = admin.maximumTimeToUnlock; 3512 } else if (admin.maximumTimeToUnlock != 0 3513 && time > admin.maximumTimeToUnlock) { 3514 time = admin.maximumTimeToUnlock; 3515 } 3516 } 3517 } 3518 return time; 3519 } 3520 } 3521 3522 @Override 3523 public void lockNow() { 3524 if (!mHasFeature) { 3525 return; 3526 } 3527 synchronized (this) { 3528 // This API can only be called by an active device admin, 3529 // so try to retrieve it to check that the caller is one. 3530 getActiveAdminForCallerLocked(null, 3531 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3532 lockNowUnchecked(); 3533 } 3534 } 3535 3536 private void lockNowUnchecked() { 3537 long ident = mInjector.binderClearCallingIdentity(); 3538 try { 3539 // Power off the display 3540 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 3541 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 3542 // Ensure the device is locked 3543 new LockPatternUtils(mContext).requireStrongAuth( 3544 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, UserHandle.USER_ALL); 3545 mInjector.getIWindowManager().lockNow(null); 3546 } catch (RemoteException e) { 3547 } finally { 3548 mInjector.binderRestoreCallingIdentity(ident); 3549 } 3550 } 3551 3552 @Override 3553 public void enforceCanManageCaCerts(ComponentName who) { 3554 if (who == null) { 3555 if (!isCallerDelegatedCertInstaller()) { 3556 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 3557 } 3558 } else { 3559 synchronized (this) { 3560 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3561 } 3562 } 3563 } 3564 3565 private void enforceCanManageInstalledKeys(ComponentName who) { 3566 if (who == null) { 3567 if (!isCallerDelegatedCertInstaller()) { 3568 throw new SecurityException("who == null, but caller is not cert installer"); 3569 } 3570 } else { 3571 synchronized (this) { 3572 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3573 } 3574 } 3575 } 3576 3577 private boolean isCallerDelegatedCertInstaller() { 3578 final int callingUid = mInjector.binderGetCallingUid(); 3579 final int userHandle = UserHandle.getUserId(callingUid); 3580 synchronized (this) { 3581 final DevicePolicyData policy = getUserData(userHandle); 3582 if (policy.mDelegatedCertInstallerPackage == null) { 3583 return false; 3584 } 3585 3586 try { 3587 int uid = mContext.getPackageManager().getPackageUid( 3588 policy.mDelegatedCertInstallerPackage, userHandle); 3589 return uid == callingUid; 3590 } catch (NameNotFoundException e) { 3591 return false; 3592 } 3593 } 3594 } 3595 3596 @Override 3597 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 3598 enforceCanManageCaCerts(admin); 3599 3600 byte[] pemCert; 3601 try { 3602 X509Certificate cert = parseCert(certBuffer); 3603 pemCert = Credentials.convertToPem(cert); 3604 } catch (CertificateException ce) { 3605 Log.e(LOG_TAG, "Problem converting cert", ce); 3606 return false; 3607 } catch (IOException ioe) { 3608 Log.e(LOG_TAG, "Problem reading cert", ioe); 3609 return false; 3610 } 3611 3612 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3613 final long id = mInjector.binderClearCallingIdentity(); 3614 try { 3615 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3616 try { 3617 keyChainConnection.getService().installCaCertificate(pemCert); 3618 return true; 3619 } catch (RemoteException e) { 3620 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 3621 } finally { 3622 keyChainConnection.close(); 3623 } 3624 } catch (InterruptedException e1) { 3625 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 3626 Thread.currentThread().interrupt(); 3627 } finally { 3628 mInjector.binderRestoreCallingIdentity(id); 3629 } 3630 return false; 3631 } 3632 3633 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 3634 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 3635 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 3636 certBuffer)); 3637 } 3638 3639 @Override 3640 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 3641 enforceCanManageCaCerts(admin); 3642 3643 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3644 final long id = mInjector.binderClearCallingIdentity(); 3645 try { 3646 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3647 try { 3648 for (int i = 0 ; i < aliases.length; i++) { 3649 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 3650 } 3651 } catch (RemoteException e) { 3652 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 3653 } finally { 3654 keyChainConnection.close(); 3655 } 3656 } catch (InterruptedException ie) { 3657 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 3658 Thread.currentThread().interrupt(); 3659 } finally { 3660 mInjector.binderRestoreCallingIdentity(id); 3661 } 3662 } 3663 3664 @Override 3665 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 3666 enforceCanManageInstalledKeys(who); 3667 3668 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3669 final long id = mInjector.binderClearCallingIdentity(); 3670 try { 3671 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3672 try { 3673 IKeyChainService keyChain = keyChainConnection.getService(); 3674 return keyChain.installKeyPair(privKey, cert, alias); 3675 } catch (RemoteException e) { 3676 Log.e(LOG_TAG, "Installing certificate", e); 3677 } finally { 3678 keyChainConnection.close(); 3679 } 3680 } catch (InterruptedException e) { 3681 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 3682 Thread.currentThread().interrupt(); 3683 } finally { 3684 mInjector.binderRestoreCallingIdentity(id); 3685 } 3686 return false; 3687 } 3688 3689 @Override 3690 public boolean removeKeyPair(ComponentName who, String alias) { 3691 enforceCanManageInstalledKeys(who); 3692 3693 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3694 final long id = Binder.clearCallingIdentity(); 3695 try { 3696 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3697 try { 3698 IKeyChainService keyChain = keyChainConnection.getService(); 3699 return keyChain.removeKeyPair(alias); 3700 } catch (RemoteException e) { 3701 Log.e(LOG_TAG, "Removing keypair", e); 3702 } finally { 3703 keyChainConnection.close(); 3704 } 3705 } catch (InterruptedException e) { 3706 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 3707 Thread.currentThread().interrupt(); 3708 } finally { 3709 Binder.restoreCallingIdentity(id); 3710 } 3711 return false; 3712 } 3713 3714 @Override 3715 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 3716 final IBinder response) { 3717 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 3718 if (!UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID)) { 3719 return; 3720 } 3721 3722 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 3723 // If there is a profile owner, redirect to that; otherwise query the device owner. 3724 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 3725 if (aliasChooser == null && caller.isSystem()) { 3726 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 3727 if (deviceOwnerAdmin != null) { 3728 aliasChooser = deviceOwnerAdmin.info.getComponent(); 3729 } 3730 } 3731 if (aliasChooser == null) { 3732 sendPrivateKeyAliasResponse(null, response); 3733 return; 3734 } 3735 3736 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 3737 intent.setComponent(aliasChooser); 3738 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 3739 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 3740 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 3741 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 3742 3743 final long id = mInjector.binderClearCallingIdentity(); 3744 try { 3745 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 3746 @Override 3747 public void onReceive(Context context, Intent intent) { 3748 final String chosenAlias = getResultData(); 3749 sendPrivateKeyAliasResponse(chosenAlias, response); 3750 } 3751 }, null, Activity.RESULT_OK, null, null); 3752 } finally { 3753 mInjector.binderRestoreCallingIdentity(id); 3754 } 3755 } 3756 3757 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 3758 final IKeyChainAliasCallback keyChainAliasResponse = 3759 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 3760 new AsyncTask<Void, Void, Void>() { 3761 @Override 3762 protected Void doInBackground(Void... unused) { 3763 try { 3764 keyChainAliasResponse.alias(alias); 3765 } catch (Exception e) { 3766 // Catch everything (not just RemoteException): caller could throw a 3767 // RuntimeException back across processes. 3768 Log.e(LOG_TAG, "error while responding to callback", e); 3769 } 3770 return null; 3771 } 3772 }.execute(); 3773 } 3774 3775 @Override 3776 public void setCertInstallerPackage(ComponentName who, String installerPackage) 3777 throws SecurityException { 3778 int userHandle = UserHandle.getCallingUserId(); 3779 synchronized (this) { 3780 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3781 DevicePolicyData policy = getUserData(userHandle); 3782 policy.mDelegatedCertInstallerPackage = installerPackage; 3783 saveSettingsLocked(userHandle); 3784 } 3785 } 3786 3787 @Override 3788 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 3789 int userHandle = UserHandle.getCallingUserId(); 3790 synchronized (this) { 3791 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3792 DevicePolicyData policy = getUserData(userHandle); 3793 return policy.mDelegatedCertInstallerPackage; 3794 } 3795 } 3796 3797 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 3798 if (wipeExtRequested) { 3799 StorageManager sm = (StorageManager) mContext.getSystemService( 3800 Context.STORAGE_SERVICE); 3801 sm.wipeAdoptableDisks(); 3802 } 3803 try { 3804 RecoverySystem.rebootWipeUserData(mContext, reason); 3805 } catch (IOException | SecurityException e) { 3806 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 3807 } 3808 } 3809 3810 @Override 3811 public void wipeData(int flags) { 3812 if (!mHasFeature) { 3813 return; 3814 } 3815 final int userHandle = mInjector.userHandleGetCallingUserId(); 3816 enforceFullCrossUsersPermission(userHandle); 3817 synchronized (this) { 3818 // This API can only be called by an active device admin, 3819 // so try to retrieve it to check that the caller is one. 3820 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 3821 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3822 3823 final String source = admin.info.getComponent().flattenToShortString(); 3824 3825 long ident = mInjector.binderClearCallingIdentity(); 3826 try { 3827 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 3828 if (!isDeviceOwner(admin.info.getComponent(), userHandle)) { 3829 throw new SecurityException( 3830 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 3831 } 3832 PersistentDataBlockManager manager = (PersistentDataBlockManager) 3833 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 3834 if (manager != null) { 3835 manager.wipe(); 3836 } 3837 } 3838 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 3839 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 3840 "DevicePolicyManager.wipeData() from " + source); 3841 } finally { 3842 mInjector.binderRestoreCallingIdentity(ident); 3843 } 3844 } 3845 } 3846 3847 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 3848 if (userHandle == UserHandle.USER_SYSTEM) { 3849 wipeDataLocked(wipeExtRequested, reason); 3850 } else { 3851 mHandler.post(new Runnable() { 3852 @Override 3853 public void run() { 3854 try { 3855 IActivityManager am = mInjector.getIActivityManager(); 3856 if (am.getCurrentUser().id == userHandle) { 3857 am.switchUser(UserHandle.USER_SYSTEM); 3858 } 3859 3860 boolean isManagedProfile = isManagedProfile(userHandle); 3861 if (!mUserManager.removeUser(userHandle)) { 3862 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 3863 } else if (isManagedProfile) { 3864 sendWipeProfileNotification(); 3865 } 3866 } catch (RemoteException re) { 3867 // Shouldn't happen 3868 } 3869 } 3870 }); 3871 } 3872 } 3873 3874 private void sendWipeProfileNotification() { 3875 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 3876 Notification notification = new Notification.Builder(mContext) 3877 .setSmallIcon(android.R.drawable.stat_sys_warning) 3878 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 3879 .setContentText(contentText) 3880 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 3881 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 3882 .build(); 3883 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 3884 } 3885 3886 private void clearWipeProfileNotification() { 3887 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 3888 } 3889 3890 @Override 3891 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 3892 if (!mHasFeature) { 3893 return; 3894 } 3895 enforceFullCrossUsersPermission(userHandle); 3896 mContext.enforceCallingOrSelfPermission( 3897 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3898 3899 synchronized (this) { 3900 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 3901 if (admin == null) { 3902 result.sendResult(null); 3903 return; 3904 } 3905 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3906 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3907 intent.setComponent(admin.info.getComponent()); 3908 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3909 null, new BroadcastReceiver() { 3910 @Override 3911 public void onReceive(Context context, Intent intent) { 3912 result.sendResult(getResultExtras(false)); 3913 } 3914 }, null, Activity.RESULT_OK, null, null); 3915 } 3916 } 3917 3918 @Override 3919 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3920 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3921 if (!mHasFeature) { 3922 return; 3923 } 3924 enforceFullCrossUsersPermission(userHandle); 3925 // Managed Profile password can only be changed when per user encryption is present. 3926 if (!LockPatternUtils.isSeparateWorkChallengeEnabled()) { 3927 enforceNotManagedProfile(userHandle, "set the active password"); 3928 } 3929 3930 mContext.enforceCallingOrSelfPermission( 3931 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3932 validateQualityConstant(quality); 3933 3934 DevicePolicyData policy = getUserData(userHandle); 3935 3936 long ident = mInjector.binderClearCallingIdentity(); 3937 try { 3938 synchronized (this) { 3939 policy.mActivePasswordQuality = quality; 3940 policy.mActivePasswordLength = length; 3941 policy.mActivePasswordLetters = letters; 3942 policy.mActivePasswordLowerCase = lowercase; 3943 policy.mActivePasswordUpperCase = uppercase; 3944 policy.mActivePasswordNumeric = numbers; 3945 policy.mActivePasswordSymbols = symbols; 3946 policy.mActivePasswordNonLetter = nonletter; 3947 policy.mFailedPasswordAttempts = 0; 3948 saveSettingsLocked(userHandle); 3949 updatePasswordExpirationsLocked(userHandle); 3950 setExpirationAlarmCheckLocked(mContext, policy); 3951 3952 // Send a broadcast to each profile using this password as its primary unlock. 3953 if (LockPatternUtils.isSeparateWorkChallengeEnabled()) { 3954 sendAdminCommandLocked( 3955 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3956 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3957 } else { 3958 sendAdminCommandToSelfAndProfilesLocked( 3959 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3960 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3961 } 3962 } 3963 } finally { 3964 mInjector.binderRestoreCallingIdentity(ident); 3965 } 3966 } 3967 3968 /** 3969 * Called any time the device password is updated. Resets all password expiration clocks. 3970 */ 3971 private void updatePasswordExpirationsLocked(int userHandle) { 3972 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3973 for (UserInfo userInfo : profiles) { 3974 int profileId = userInfo.id; 3975 DevicePolicyData policy = getUserDataUnchecked(profileId); 3976 final int N = policy.mAdminList.size(); 3977 if (N > 0) { 3978 for (int i=0; i<N; i++) { 3979 ActiveAdmin admin = policy.mAdminList.get(i); 3980 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3981 long timeout = admin.passwordExpirationTimeout; 3982 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3983 admin.passwordExpirationDate = expiration; 3984 } 3985 } 3986 } 3987 saveSettingsLocked(profileId); 3988 } 3989 } 3990 3991 @Override 3992 public void reportFailedPasswordAttempt(int userHandle) { 3993 enforceFullCrossUsersPermission(userHandle); 3994 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3995 mContext.enforceCallingOrSelfPermission( 3996 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3997 3998 long ident = mInjector.binderClearCallingIdentity(); 3999 try { 4000 boolean wipeData = false; 4001 int identifier = 0; 4002 synchronized (this) { 4003 DevicePolicyData policy = getUserData(userHandle); 4004 policy.mFailedPasswordAttempts++; 4005 saveSettingsLocked(userHandle); 4006 if (mHasFeature) { 4007 ActiveAdmin strictestAdmin = 4008 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 4009 int max = strictestAdmin != null 4010 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 4011 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 4012 // Wipe the user/profile associated with the policy that was violated. This 4013 // is not necessarily calling user: if the policy that fired was from a 4014 // managed profile rather than the main user profile, we wipe former only. 4015 wipeData = true; 4016 identifier = strictestAdmin.getUserHandle().getIdentifier(); 4017 } 4018 sendAdminCommandToSelfAndProfilesLocked( 4019 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 4020 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4021 } 4022 } 4023 if (wipeData) { 4024 // Call without holding lock. 4025 wipeDeviceOrUserLocked(false, identifier, 4026 "reportFailedPasswordAttempt()"); 4027 } 4028 } finally { 4029 mInjector.binderRestoreCallingIdentity(ident); 4030 } 4031 } 4032 4033 @Override 4034 public void reportSuccessfulPasswordAttempt(int userHandle) { 4035 enforceFullCrossUsersPermission(userHandle); 4036 mContext.enforceCallingOrSelfPermission( 4037 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4038 4039 synchronized (this) { 4040 DevicePolicyData policy = getUserData(userHandle); 4041 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 4042 long ident = mInjector.binderClearCallingIdentity(); 4043 try { 4044 policy.mFailedPasswordAttempts = 0; 4045 policy.mPasswordOwner = -1; 4046 saveSettingsLocked(userHandle); 4047 if (mHasFeature) { 4048 sendAdminCommandToSelfAndProfilesLocked( 4049 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 4050 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4051 } 4052 } finally { 4053 mInjector.binderRestoreCallingIdentity(ident); 4054 } 4055 } 4056 } 4057 } 4058 4059 @Override 4060 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 4061 String exclusionList) { 4062 if (!mHasFeature) { 4063 return null; 4064 } 4065 synchronized(this) { 4066 Preconditions.checkNotNull(who, "ComponentName is null"); 4067 4068 // Only check if system user has set global proxy. We don't allow other users to set it. 4069 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4070 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4071 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 4072 4073 // Scan through active admins and find if anyone has already 4074 // set the global proxy. 4075 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 4076 for (ComponentName component : compSet) { 4077 ActiveAdmin ap = policy.mAdminMap.get(component); 4078 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 4079 // Another admin already sets the global proxy 4080 // Return it to the caller. 4081 return component; 4082 } 4083 } 4084 4085 // If the user is not system, don't set the global proxy. Fail silently. 4086 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 4087 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 4088 + UserHandle.getCallingUserId() + " is not permitted."); 4089 return null; 4090 } 4091 if (proxySpec == null) { 4092 admin.specifiesGlobalProxy = false; 4093 admin.globalProxySpec = null; 4094 admin.globalProxyExclusionList = null; 4095 } else { 4096 4097 admin.specifiesGlobalProxy = true; 4098 admin.globalProxySpec = proxySpec; 4099 admin.globalProxyExclusionList = exclusionList; 4100 } 4101 4102 // Reset the global proxy accordingly 4103 // Do this using system permissions, as apps cannot write to secure settings 4104 long origId = mInjector.binderClearCallingIdentity(); 4105 try { 4106 resetGlobalProxyLocked(policy); 4107 } finally { 4108 mInjector.binderRestoreCallingIdentity(origId); 4109 } 4110 return null; 4111 } 4112 } 4113 4114 @Override 4115 public ComponentName getGlobalProxyAdmin(int userHandle) { 4116 if (!mHasFeature) { 4117 return null; 4118 } 4119 enforceFullCrossUsersPermission(userHandle); 4120 synchronized(this) { 4121 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4122 // Scan through active admins and find if anyone has already 4123 // set the global proxy. 4124 final int N = policy.mAdminList.size(); 4125 for (int i = 0; i < N; i++) { 4126 ActiveAdmin ap = policy.mAdminList.get(i); 4127 if (ap.specifiesGlobalProxy) { 4128 // Device admin sets the global proxy 4129 // Return it to the caller. 4130 return ap.info.getComponent(); 4131 } 4132 } 4133 } 4134 // No device admin sets the global proxy. 4135 return null; 4136 } 4137 4138 @Override 4139 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 4140 synchronized (this) { 4141 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4142 } 4143 long token = mInjector.binderClearCallingIdentity(); 4144 try { 4145 ConnectivityManager connectivityManager = (ConnectivityManager) 4146 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4147 connectivityManager.setGlobalProxy(proxyInfo); 4148 } finally { 4149 mInjector.binderRestoreCallingIdentity(token); 4150 } 4151 } 4152 4153 private void resetGlobalProxyLocked(DevicePolicyData policy) { 4154 final int N = policy.mAdminList.size(); 4155 for (int i = 0; i < N; i++) { 4156 ActiveAdmin ap = policy.mAdminList.get(i); 4157 if (ap.specifiesGlobalProxy) { 4158 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 4159 return; 4160 } 4161 } 4162 // No device admins defining global proxies - reset global proxy settings to none 4163 saveGlobalProxyLocked(null, null); 4164 } 4165 4166 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 4167 if (exclusionList == null) { 4168 exclusionList = ""; 4169 } 4170 if (proxySpec == null) { 4171 proxySpec = ""; 4172 } 4173 // Remove white spaces 4174 proxySpec = proxySpec.trim(); 4175 String data[] = proxySpec.split(":"); 4176 int proxyPort = 8080; 4177 if (data.length > 1) { 4178 try { 4179 proxyPort = Integer.parseInt(data[1]); 4180 } catch (NumberFormatException e) {} 4181 } 4182 exclusionList = exclusionList.trim(); 4183 4184 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 4185 if (!proxyProperties.isValid()) { 4186 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 4187 return; 4188 } 4189 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 4190 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 4191 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 4192 exclusionList); 4193 } 4194 4195 /** 4196 * Set the storage encryption request for a single admin. Returns the new total request 4197 * status (for all admins). 4198 */ 4199 @Override 4200 public int setStorageEncryption(ComponentName who, boolean encrypt) { 4201 if (!mHasFeature) { 4202 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4203 } 4204 Preconditions.checkNotNull(who, "ComponentName is null"); 4205 final int userHandle = UserHandle.getCallingUserId(); 4206 synchronized (this) { 4207 // Check for permissions 4208 // Only system user can set storage encryption 4209 if (userHandle != UserHandle.USER_SYSTEM) { 4210 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 4211 + UserHandle.getCallingUserId() + " is not permitted."); 4212 return 0; 4213 } 4214 4215 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4216 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 4217 4218 // Quick exit: If the filesystem does not support encryption, we can exit early. 4219 if (!isEncryptionSupported()) { 4220 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4221 } 4222 4223 // (1) Record the value for the admin so it's sticky 4224 if (ap.encryptionRequested != encrypt) { 4225 ap.encryptionRequested = encrypt; 4226 saveSettingsLocked(userHandle); 4227 } 4228 4229 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4230 // (2) Compute "max" for all admins 4231 boolean newRequested = false; 4232 final int N = policy.mAdminList.size(); 4233 for (int i = 0; i < N; i++) { 4234 newRequested |= policy.mAdminList.get(i).encryptionRequested; 4235 } 4236 4237 // Notify OS of new request 4238 setEncryptionRequested(newRequested); 4239 4240 // Return the new global request status 4241 return newRequested 4242 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4243 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4244 } 4245 } 4246 4247 /** 4248 * Get the current storage encryption request status for a given admin, or aggregate of all 4249 * active admins. 4250 */ 4251 @Override 4252 public boolean getStorageEncryption(ComponentName who, int userHandle) { 4253 if (!mHasFeature) { 4254 return false; 4255 } 4256 enforceFullCrossUsersPermission(userHandle); 4257 synchronized (this) { 4258 // Check for permissions if a particular caller is specified 4259 if (who != null) { 4260 // When checking for a single caller, status is based on caller's request 4261 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 4262 return ap != null ? ap.encryptionRequested : false; 4263 } 4264 4265 // If no particular caller is specified, return the aggregate set of requests. 4266 // This is short circuited by returning true on the first hit. 4267 DevicePolicyData policy = getUserData(userHandle); 4268 final int N = policy.mAdminList.size(); 4269 for (int i = 0; i < N; i++) { 4270 if (policy.mAdminList.get(i).encryptionRequested) { 4271 return true; 4272 } 4273 } 4274 return false; 4275 } 4276 } 4277 4278 /** 4279 * Get the current encryption status of the device. 4280 */ 4281 @Override 4282 public int getStorageEncryptionStatus(int userHandle) { 4283 if (!mHasFeature) { 4284 // Ok to return current status. 4285 } 4286 enforceFullCrossUsersPermission(userHandle); 4287 return getEncryptionStatus(); 4288 } 4289 4290 /** 4291 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 4292 */ 4293 private boolean isEncryptionSupported() { 4294 // Note, this can be implemented as 4295 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4296 // But is provided as a separate internal method if there's a faster way to do a 4297 // simple check for supported-or-not. 4298 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4299 } 4300 4301 /** 4302 * Hook to low-levels: Reporting the current status of encryption. 4303 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 4304 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 4305 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, or 4306 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 4307 */ 4308 private int getEncryptionStatus() { 4309 String status = mInjector.systemPropertiesGet("ro.crypto.state", "unsupported"); 4310 if ("encrypted".equalsIgnoreCase(status)) { 4311 final long token = mInjector.binderClearCallingIdentity(); 4312 try { 4313 return LockPatternUtils.isDeviceEncrypted() 4314 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4315 : DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 4316 } finally { 4317 mInjector.binderRestoreCallingIdentity(token); 4318 } 4319 } else if ("unencrypted".equalsIgnoreCase(status)) { 4320 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4321 } else { 4322 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4323 } 4324 } 4325 4326 /** 4327 * Hook to low-levels: If needed, record the new admin setting for encryption. 4328 */ 4329 private void setEncryptionRequested(boolean encrypt) { 4330 } 4331 4332 4333 /** 4334 * Set whether the screen capture is disabled for the user managed by the specified admin. 4335 */ 4336 @Override 4337 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 4338 if (!mHasFeature) { 4339 return; 4340 } 4341 Preconditions.checkNotNull(who, "ComponentName is null"); 4342 final int userHandle = UserHandle.getCallingUserId(); 4343 synchronized (this) { 4344 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4345 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4346 if (ap.disableScreenCapture != disabled) { 4347 ap.disableScreenCapture = disabled; 4348 saveSettingsLocked(userHandle); 4349 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 4350 } 4351 } 4352 } 4353 4354 /** 4355 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 4356 * active admin (if given admin is null). 4357 */ 4358 @Override 4359 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 4360 if (!mHasFeature) { 4361 return false; 4362 } 4363 synchronized (this) { 4364 if (who != null) { 4365 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4366 return (admin != null) ? admin.disableScreenCapture : false; 4367 } 4368 4369 DevicePolicyData policy = getUserData(userHandle); 4370 final int N = policy.mAdminList.size(); 4371 for (int i = 0; i < N; i++) { 4372 ActiveAdmin admin = policy.mAdminList.get(i); 4373 if (admin.disableScreenCapture) { 4374 return true; 4375 } 4376 } 4377 return false; 4378 } 4379 } 4380 4381 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 4382 final boolean disabled) { 4383 mHandler.post(new Runnable() { 4384 @Override 4385 public void run() { 4386 try { 4387 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 4388 } catch (RemoteException e) { 4389 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 4390 } 4391 } 4392 }); 4393 } 4394 4395 /** 4396 * Set whether auto time is required by the specified admin (must be device owner). 4397 */ 4398 @Override 4399 public void setAutoTimeRequired(ComponentName who, boolean required) { 4400 if (!mHasFeature) { 4401 return; 4402 } 4403 Preconditions.checkNotNull(who, "ComponentName is null"); 4404 final int userHandle = UserHandle.getCallingUserId(); 4405 synchronized (this) { 4406 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4407 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4408 if (admin.requireAutoTime != required) { 4409 admin.requireAutoTime = required; 4410 saveSettingsLocked(userHandle); 4411 } 4412 } 4413 4414 // Turn AUTO_TIME on in settings if it is required 4415 if (required) { 4416 long ident = mInjector.binderClearCallingIdentity(); 4417 try { 4418 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 4419 } finally { 4420 mInjector.binderRestoreCallingIdentity(ident); 4421 } 4422 } 4423 } 4424 4425 /** 4426 * Returns whether or not auto time is required by the device owner. 4427 */ 4428 @Override 4429 public boolean getAutoTimeRequired() { 4430 if (!mHasFeature) { 4431 return false; 4432 } 4433 synchronized (this) { 4434 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4435 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 4436 } 4437 } 4438 4439 /** 4440 * Disables all device cameras according to the specified admin. 4441 */ 4442 @Override 4443 public void setCameraDisabled(ComponentName who, boolean disabled) { 4444 if (!mHasFeature) { 4445 return; 4446 } 4447 Preconditions.checkNotNull(who, "ComponentName is null"); 4448 final int userHandle = mInjector.userHandleGetCallingUserId(); 4449 synchronized (this) { 4450 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4451 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 4452 if (ap.disableCamera != disabled) { 4453 ap.disableCamera = disabled; 4454 saveSettingsLocked(userHandle); 4455 } 4456 } 4457 // Tell the user manager that the restrictions have changed. 4458 pushUserRestrictions(userHandle); 4459 } 4460 4461 /** 4462 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 4463 * active admins. 4464 */ 4465 @Override 4466 public boolean getCameraDisabled(ComponentName who, int userHandle) { 4467 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 4468 } 4469 4470 private boolean getCameraDisabled(ComponentName who, int userHandle, 4471 boolean mergeDeviceOwnerRestriction) { 4472 if (!mHasFeature) { 4473 return false; 4474 } 4475 synchronized (this) { 4476 if (who != null) { 4477 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4478 return (admin != null) ? admin.disableCamera : false; 4479 } 4480 // First, see if DO has set it. If so, it's device-wide. 4481 if (mergeDeviceOwnerRestriction) { 4482 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4483 if (deviceOwner != null && deviceOwner.disableCamera) { 4484 return true; 4485 } 4486 } 4487 4488 // Then check each device admin on the user. 4489 DevicePolicyData policy = getUserData(userHandle); 4490 // Determine whether or not the device camera is disabled for any active admins. 4491 final int N = policy.mAdminList.size(); 4492 for (int i = 0; i < N; i++) { 4493 ActiveAdmin admin = policy.mAdminList.get(i); 4494 if (admin.disableCamera) { 4495 return true; 4496 } 4497 } 4498 return false; 4499 } 4500 } 4501 4502 /** 4503 * Selectively disable keyguard features. 4504 */ 4505 @Override 4506 public void setKeyguardDisabledFeatures(ComponentName who, int which) { 4507 if (!mHasFeature) { 4508 return; 4509 } 4510 Preconditions.checkNotNull(who, "ComponentName is null"); 4511 final int userHandle = UserHandle.getCallingUserId(); 4512 if (isManagedProfile(userHandle)) { 4513 which = which & PROFILE_KEYGUARD_FEATURES; 4514 } 4515 synchronized (this) { 4516 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4517 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4518 if (ap.disabledKeyguardFeatures != which) { 4519 ap.disabledKeyguardFeatures = which; 4520 saveSettingsLocked(userHandle); 4521 } 4522 } 4523 } 4524 4525 /** 4526 * Gets the disabled state for features in keyguard for the given admin, 4527 * or the aggregate of all active admins if who is null. 4528 */ 4529 @Override 4530 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 4531 if (!mHasFeature) { 4532 return 0; 4533 } 4534 enforceFullCrossUsersPermission(userHandle); 4535 long ident = mInjector.binderClearCallingIdentity(); 4536 try { 4537 synchronized (this) { 4538 if (who != null) { 4539 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4540 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 4541 } 4542 4543 UserInfo user = mUserManager.getUserInfo(userHandle); 4544 final List<UserInfo> profiles; 4545 if (user.isManagedProfile() || LockPatternUtils.isSeparateWorkChallengeEnabled()) { 4546 // If we are being asked about a managed profile or the main user profile has a 4547 // separate lock from the work profile, just return keyguard features disabled 4548 // by admins in the profile. 4549 profiles = Collections.singletonList(user); 4550 } else { 4551 // Otherwise return those set by admins in the user 4552 // and its profiles. 4553 profiles = mUserManager.getProfiles(userHandle); 4554 } 4555 4556 // Determine which keyguard features are disabled by any active admin. 4557 int which = 0; 4558 for (UserInfo userInfo : profiles) { 4559 DevicePolicyData policy = getUserData(userInfo.id); 4560 final int N = policy.mAdminList.size(); 4561 for (int i = 0; i < N; i++) { 4562 ActiveAdmin admin = policy.mAdminList.get(i); 4563 if (userInfo.id == userHandle || !userInfo.isManagedProfile()) { 4564 // If we are being asked explictly about this user 4565 // return all disabled features even if its a managed profile. 4566 which |= admin.disabledKeyguardFeatures; 4567 } else { 4568 // Otherwise a managed profile is only allowed to disable 4569 // some features on the parent user. 4570 which |= (admin.disabledKeyguardFeatures 4571 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 4572 } 4573 } 4574 } 4575 return which; 4576 } 4577 } finally { 4578 mInjector.binderRestoreCallingIdentity(ident); 4579 } 4580 } 4581 4582 @Override 4583 public void setKeepUninstalledPackages(ComponentName who, List<String> packageList) { 4584 if (!mHasFeature) { 4585 return; 4586 } 4587 Preconditions.checkNotNull(who, "ComponentName is null"); 4588 Preconditions.checkNotNull(packageList, "packageList is null"); 4589 final int userHandle = UserHandle.getCallingUserId(); 4590 synchronized (this) { 4591 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4592 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4593 admin.keepUninstalledPackages = packageList; 4594 saveSettingsLocked(userHandle); 4595 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 4596 } 4597 } 4598 4599 @Override 4600 public List<String> getKeepUninstalledPackages(ComponentName who) { 4601 Preconditions.checkNotNull(who, "ComponentName is null"); 4602 if (!mHasFeature) { 4603 return null; 4604 } 4605 // TODO In split system user mode, allow apps on user 0 to query the list 4606 synchronized (this) { 4607 // Check if this is the device owner who is calling 4608 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4609 return getKeepUninstalledPackagesLocked(); 4610 } 4611 } 4612 4613 private List<String> getKeepUninstalledPackagesLocked() { 4614 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4615 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 4616 } 4617 4618 @Override 4619 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 4620 if (!mHasFeature) { 4621 return false; 4622 } 4623 if (admin == null 4624 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 4625 throw new IllegalArgumentException("Invalid component " + admin 4626 + " for device owner"); 4627 } 4628 synchronized (this) { 4629 enforceCanSetDeviceOwnerLocked(userId); 4630 4631 // Shutting down backup manager service permanently. 4632 long ident = mInjector.binderClearCallingIdentity(); 4633 try { 4634 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, false); 4635 } catch (RemoteException e) { 4636 throw new IllegalStateException("Failed deactivating backup service.", e); 4637 } finally { 4638 mInjector.binderRestoreCallingIdentity(ident); 4639 } 4640 4641 mOwners.setDeviceOwner(admin, ownerName, userId); 4642 mOwners.writeDeviceOwner(); 4643 updateDeviceOwnerLocked(); 4644 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 4645 4646 ident = mInjector.binderClearCallingIdentity(); 4647 try { 4648 // TODO Send to system too? 4649 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 4650 } finally { 4651 mInjector.binderRestoreCallingIdentity(ident); 4652 } 4653 return true; 4654 } 4655 } 4656 4657 public boolean isDeviceOwner(ComponentName who, int userId) { 4658 synchronized (this) { 4659 return mOwners.hasDeviceOwner() 4660 && mOwners.getDeviceOwnerUserId() == userId 4661 && mOwners.getDeviceOwnerComponent().equals(who); 4662 } 4663 } 4664 4665 public boolean isProfileOwner(ComponentName who, int userId) { 4666 final ComponentName profileOwner = getProfileOwner(userId); 4667 return who != null && who.equals(profileOwner); 4668 } 4669 4670 @Override 4671 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 4672 if (!mHasFeature) { 4673 return null; 4674 } 4675 if (!callingUserOnly) { 4676 enforceManageUsers(); 4677 } 4678 synchronized (this) { 4679 if (!mOwners.hasDeviceOwner()) { 4680 return null; 4681 } 4682 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 4683 mOwners.getDeviceOwnerUserId()) { 4684 return null; 4685 } 4686 return mOwners.getDeviceOwnerComponent(); 4687 } 4688 } 4689 4690 @Override 4691 public int getDeviceOwnerUserId() { 4692 if (!mHasFeature) { 4693 return UserHandle.USER_NULL; 4694 } 4695 enforceManageUsers(); 4696 synchronized (this) { 4697 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 4698 } 4699 } 4700 4701 /** 4702 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 4703 * MANAGE_USERS. 4704 */ 4705 @Override 4706 public String getDeviceOwnerName() { 4707 if (!mHasFeature) { 4708 return null; 4709 } 4710 enforceManageUsers(); 4711 synchronized (this) { 4712 if (!mOwners.hasDeviceOwner()) { 4713 return null; 4714 } 4715 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 4716 // Should setDeviceOwner/ProfileOwner still take a name? 4717 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 4718 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 4719 } 4720 } 4721 4722 // Returns the active device owner or null if there is no device owner. 4723 @VisibleForTesting 4724 ActiveAdmin getDeviceOwnerAdminLocked() { 4725 ComponentName component = mOwners.getDeviceOwnerComponent(); 4726 if (component == null) { 4727 return null; 4728 } 4729 4730 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 4731 final int n = policy.mAdminList.size(); 4732 for (int i = 0; i < n; i++) { 4733 ActiveAdmin admin = policy.mAdminList.get(i); 4734 if (component.equals(admin.info.getComponent())) { 4735 return admin; 4736 } 4737 } 4738 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 4739 return null; 4740 } 4741 4742 @Override 4743 public void clearDeviceOwner(String packageName) { 4744 Preconditions.checkNotNull(packageName, "packageName is null"); 4745 final int callingUid = mInjector.binderGetCallingUid(); 4746 try { 4747 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 4748 if (uid != callingUid) { 4749 throw new SecurityException("Invalid packageName"); 4750 } 4751 } catch (NameNotFoundException e) { 4752 throw new SecurityException(e); 4753 } 4754 synchronized (this) { 4755 if (!mOwners.hasDeviceOwner() 4756 || !mOwners.getDeviceOwnerComponent().getPackageName().equals(packageName) 4757 || (mOwners.getDeviceOwnerUserId() != UserHandle.getUserId(callingUid))) { 4758 throw new SecurityException( 4759 "clearDeviceOwner can only be called by the device owner"); 4760 } 4761 4762 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 4763 if (admin != null) { 4764 admin.disableCamera = false; 4765 admin.userRestrictions = null; 4766 } 4767 4768 clearUserPoliciesLocked(new UserHandle(UserHandle.USER_SYSTEM)); 4769 4770 mOwners.clearDeviceOwner(); 4771 mOwners.writeDeviceOwner(); 4772 updateDeviceOwnerLocked(); 4773 // Reactivate backup service. 4774 long ident = mInjector.binderClearCallingIdentity(); 4775 try { 4776 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 4777 } catch (RemoteException e) { 4778 throw new IllegalStateException("Failed reactivating backup service.", e); 4779 } finally { 4780 mInjector.binderRestoreCallingIdentity(ident); 4781 } 4782 } 4783 } 4784 4785 @Override 4786 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 4787 if (!mHasFeature) { 4788 return false; 4789 } 4790 if (who == null 4791 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 4792 throw new IllegalArgumentException("Component " + who 4793 + " not installed for userId:" + userHandle); 4794 } 4795 synchronized (this) { 4796 enforceCanSetProfileOwnerLocked(userHandle); 4797 mOwners.setProfileOwner(who, ownerName, userHandle); 4798 mOwners.writeProfileOwner(userHandle); 4799 return true; 4800 } 4801 } 4802 4803 @Override 4804 public void clearProfileOwner(ComponentName who) { 4805 if (!mHasFeature) { 4806 return; 4807 } 4808 UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 4809 // Check if this is the profile owner who is calling 4810 final ActiveAdmin admin = 4811 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4812 synchronized (this) { 4813 admin.disableCamera = false; 4814 admin.userRestrictions = null; 4815 clearUserPoliciesLocked(callingUser); 4816 final int userId = callingUser.getIdentifier(); 4817 mOwners.removeProfileOwner(userId); 4818 mOwners.writeProfileOwner(userId); 4819 } 4820 } 4821 4822 @Override 4823 public boolean setDeviceOwnerLockScreenInfo(ComponentName who, String info) { 4824 Preconditions.checkNotNull(who, "ComponentName is null"); 4825 if (!mHasFeature) { 4826 return false; 4827 } 4828 4829 synchronized (this) { 4830 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4831 long token = mInjector.binderClearCallingIdentity(); 4832 try { 4833 new LockPatternUtils(mContext).setDeviceOwnerInfo(info); 4834 } finally { 4835 mInjector.binderRestoreCallingIdentity(token); 4836 } 4837 return true; 4838 } 4839 } 4840 4841 @Override 4842 public String getDeviceOwnerLockScreenInfo() { 4843 return new LockPatternUtils(mContext).getDeviceOwnerInfo(); 4844 } 4845 4846 private void clearUserPoliciesLocked(UserHandle userHandle) { 4847 int userId = userHandle.getIdentifier(); 4848 // Reset some of the user-specific policies 4849 DevicePolicyData policy = getUserData(userId); 4850 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 4851 policy.mDelegatedCertInstallerPackage = null; 4852 policy.mApplicationRestrictionsManagingPackage = null; 4853 policy.mStatusBarDisabled = false; 4854 saveSettingsLocked(userId); 4855 4856 final long ident = mInjector.binderClearCallingIdentity(); 4857 try { 4858 mIPackageManager.updatePermissionFlagsForAllApps( 4859 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 4860 0 /* flagValues */, userHandle.getIdentifier()); 4861 pushUserRestrictions(userHandle.getIdentifier()); 4862 } catch (RemoteException re) { 4863 } finally { 4864 mInjector.binderRestoreCallingIdentity(ident); 4865 } 4866 } 4867 4868 @Override 4869 public boolean hasUserSetupCompleted() { 4870 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 4871 } 4872 4873 private boolean hasUserSetupCompleted(int userHandle) { 4874 if (!mHasFeature) { 4875 return true; 4876 } 4877 return getUserData(userHandle).mUserSetupComplete; 4878 } 4879 4880 @Override 4881 public void setProfileEnabled(ComponentName who) { 4882 if (!mHasFeature) { 4883 return; 4884 } 4885 Preconditions.checkNotNull(who, "ComponentName is null"); 4886 final int userHandle = UserHandle.getCallingUserId(); 4887 synchronized (this) { 4888 // Check if this is the profile owner who is calling 4889 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4890 int userId = UserHandle.getCallingUserId(); 4891 4892 long id = mInjector.binderClearCallingIdentity(); 4893 try { 4894 mUserManager.setUserEnabled(userId); 4895 UserInfo parent = mUserManager.getProfileParent(userId); 4896 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 4897 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 4898 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 4899 Intent.FLAG_RECEIVER_FOREGROUND); 4900 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 4901 } finally { 4902 mInjector.binderRestoreCallingIdentity(id); 4903 } 4904 } 4905 } 4906 4907 @Override 4908 public void setProfileName(ComponentName who, String profileName) { 4909 Preconditions.checkNotNull(who, "ComponentName is null"); 4910 int userId = UserHandle.getCallingUserId(); 4911 // Check if this is the profile owner (includes device owner). 4912 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4913 4914 long id = mInjector.binderClearCallingIdentity(); 4915 try { 4916 mUserManager.setUserName(userId, profileName); 4917 } finally { 4918 mInjector.binderRestoreCallingIdentity(id); 4919 } 4920 } 4921 4922 @Override 4923 public ComponentName getProfileOwner(int userHandle) { 4924 if (!mHasFeature) { 4925 return null; 4926 } 4927 4928 synchronized (this) { 4929 return mOwners.getProfileOwnerComponent(userHandle); 4930 } 4931 } 4932 4933 // Returns the active profile owner for this user or null if the current user has no 4934 // profile owner. 4935 @VisibleForTesting 4936 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 4937 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 4938 if (profileOwner == null) { 4939 return null; 4940 } 4941 DevicePolicyData policy = getUserData(userHandle); 4942 final int n = policy.mAdminList.size(); 4943 for (int i = 0; i < n; i++) { 4944 ActiveAdmin admin = policy.mAdminList.get(i); 4945 if (profileOwner.equals(admin.info.getComponent())) { 4946 return admin; 4947 } 4948 } 4949 return null; 4950 } 4951 4952 @Override 4953 public String getProfileOwnerName(int userHandle) { 4954 if (!mHasFeature) { 4955 return null; 4956 } 4957 enforceManageUsers(); 4958 ComponentName profileOwner = getProfileOwner(userHandle); 4959 if (profileOwner == null) { 4960 return null; 4961 } 4962 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 4963 } 4964 4965 /** 4966 * Canonical name for a given package. 4967 */ 4968 private String getApplicationLabel(String packageName, int userHandle) { 4969 long token = mInjector.binderClearCallingIdentity(); 4970 try { 4971 final Context userContext; 4972 try { 4973 UserHandle handle = new UserHandle(userHandle); 4974 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 4975 } catch (PackageManager.NameNotFoundException nnfe) { 4976 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 4977 return null; 4978 } 4979 ApplicationInfo appInfo = userContext.getApplicationInfo(); 4980 CharSequence result = null; 4981 if (appInfo != null) { 4982 PackageManager pm = userContext.getPackageManager(); 4983 result = pm.getApplicationLabel(appInfo); 4984 } 4985 return result != null ? result.toString() : null; 4986 } finally { 4987 mInjector.binderRestoreCallingIdentity(token); 4988 } 4989 } 4990 4991 /** 4992 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4993 * permission. 4994 * The profile owner can only be set before the user setup phase has completed, 4995 * except for: 4996 * - SYSTEM_UID 4997 * - adb if there are not accounts. 4998 */ 4999 private void enforceCanSetProfileOwnerLocked(int userHandle) { 5000 UserInfo info = mUserManager.getUserInfo(userHandle); 5001 if (info == null) { 5002 // User doesn't exist. 5003 throw new IllegalArgumentException( 5004 "Attempted to set profile owner for invalid userId: " + userHandle); 5005 } 5006 if (info.isGuest()) { 5007 throw new IllegalStateException("Cannot set a profile owner on a guest"); 5008 } 5009 if (mOwners.hasProfileOwner(userHandle)) { 5010 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 5011 + "is already set."); 5012 } 5013 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 5014 throw new IllegalStateException("Trying to set the profile owner, but the user " 5015 + "already has a device owner."); 5016 } 5017 int callingUid = mInjector.binderGetCallingUid(); 5018 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 5019 if (hasUserSetupCompleted(userHandle) && 5020 AccountManager.get(mContext).getAccountsAsUser(userHandle).length > 0) { 5021 throw new IllegalStateException("Not allowed to set the profile owner because " 5022 + "there are already some accounts on the profile"); 5023 } 5024 return; 5025 } 5026 mContext.enforceCallingOrSelfPermission( 5027 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 5028 if (hasUserSetupCompleted(userHandle) 5029 && !UserHandle.isSameApp(callingUid, Process.SYSTEM_UID)) { 5030 throw new IllegalStateException("Cannot set the profile owner on a user which is " 5031 + "already set-up"); 5032 } 5033 } 5034 5035 /** 5036 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 5037 * permission. 5038 * The device owner can only be set before the setup phase of the primary user has completed, 5039 * except for adb if no accounts or additional users are present on the device. 5040 */ 5041 private void enforceCanSetDeviceOwnerLocked(int userId) { 5042 if (mOwners.hasDeviceOwner()) { 5043 throw new IllegalStateException("Trying to set the device owner, but device owner " 5044 + "is already set."); 5045 } 5046 if (mOwners.hasProfileOwner(userId)) { 5047 throw new IllegalStateException("Trying to set the device owner, but the user already " 5048 + "has a profile owner."); 5049 } 5050 if (!mUserManager.isUserRunning(new UserHandle(userId))) { 5051 throw new IllegalStateException("User not running: " + userId); 5052 } 5053 5054 int callingUid = mInjector.binderGetCallingUid(); 5055 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 5056 if (!hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 5057 return; 5058 } 5059 // STOPSHIP Do proper check in split user mode 5060 if (!mInjector.userManagerIsSplitSystemUser()) { 5061 if (mUserManager.getUserCount() > 1) { 5062 throw new IllegalStateException( 5063 "Not allowed to set the device owner because there " 5064 + "are already several users on the device"); 5065 } 5066 if (AccountManager.get(mContext).getAccounts().length > 0) { 5067 throw new IllegalStateException( 5068 "Not allowed to set the device owner because there " 5069 + "are already some accounts on the device"); 5070 } 5071 } 5072 return; 5073 } 5074 // STOPSHIP check the caller UID with userId 5075 5076 mContext.enforceCallingOrSelfPermission( 5077 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 5078 // STOPSHIP Do proper check in split user mode 5079 if (!mInjector.userManagerIsSplitSystemUser()) { 5080 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 5081 throw new IllegalStateException("Cannot set the device owner if the device is " 5082 + "already set-up"); 5083 } 5084 } 5085 } 5086 5087 private void enforceManageUsers() { 5088 final int callingUid = mInjector.binderGetCallingUid(); 5089 if (!(UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 5090 || callingUid == Process.ROOT_UID)) { 5091 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 5092 } 5093 } 5094 5095 private void enforceFullCrossUsersPermission(int userHandle) { 5096 enforceSystemUserOrPermission(userHandle, 5097 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 5098 } 5099 5100 private void enforceCrossUsersPermission(int userHandle) { 5101 enforceSystemUserOrPermission(userHandle, 5102 android.Manifest.permission.INTERACT_ACROSS_USERS); 5103 } 5104 5105 private void enforceSystemUserOrPermission(int userHandle, String permission) { 5106 if (userHandle < 0) { 5107 throw new IllegalArgumentException("Invalid userId " + userHandle); 5108 } 5109 final int callingUid = mInjector.binderGetCallingUid(); 5110 if (userHandle == UserHandle.getUserId(callingUid)) { 5111 return; 5112 } 5113 if (!(UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 5114 || callingUid == Process.ROOT_UID)) { 5115 mContext.enforceCallingOrSelfPermission(permission, 5116 "Must be system or have " + permission + " permission"); 5117 } 5118 } 5119 5120 private void enforceNotManagedProfile(int userHandle, String message) { 5121 if(isManagedProfile(userHandle)) { 5122 throw new SecurityException("You can not " + message + " for a managed profile. "); 5123 } 5124 } 5125 5126 private int getCredentialOwner(int userHandle) { 5127 long ident = mInjector.binderClearCallingIdentity(); 5128 try { 5129 return mUserManager.getCredentialOwnerProfile(userHandle); 5130 } finally { 5131 mInjector.binderRestoreCallingIdentity(ident); 5132 } 5133 } 5134 5135 private boolean isManagedProfile(int userHandle) { 5136 long ident = mInjector.binderClearCallingIdentity(); 5137 try { 5138 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 5139 } finally { 5140 mInjector.binderRestoreCallingIdentity(ident); 5141 } 5142 } 5143 5144 private void enableIfNecessary(String packageName, int userId) { 5145 try { 5146 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 5147 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 5148 userId); 5149 if (ai.enabledSetting 5150 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 5151 mIPackageManager.setApplicationEnabledSetting(packageName, 5152 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 5153 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 5154 } 5155 } catch (RemoteException e) { 5156 } 5157 } 5158 5159 @Override 5160 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 5161 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 5162 != PackageManager.PERMISSION_GRANTED) { 5163 5164 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 5165 + mInjector.binderGetCallingPid() 5166 + ", uid=" + mInjector.binderGetCallingUid()); 5167 return; 5168 } 5169 5170 synchronized (this) { 5171 pw.println("Current Device Policy Manager state:"); 5172 mOwners.dump(" ", pw); 5173 int userCount = mUserData.size(); 5174 for (int u = 0; u < userCount; u++) { 5175 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 5176 pw.println(); 5177 pw.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 5178 final int N = policy.mAdminList.size(); 5179 for (int i=0; i<N; i++) { 5180 ActiveAdmin ap = policy.mAdminList.get(i); 5181 if (ap != null) { 5182 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 5183 pw.println(":"); 5184 ap.dump(" ", pw); 5185 } 5186 } 5187 if (!policy.mRemovingAdmins.isEmpty()) { 5188 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 5189 + policy.mRemovingAdmins); 5190 } 5191 5192 pw.println(" "); 5193 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 5194 } 5195 } 5196 } 5197 5198 @Override 5199 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 5200 ComponentName activity) { 5201 Preconditions.checkNotNull(who, "ComponentName is null"); 5202 final int userHandle = UserHandle.getCallingUserId(); 5203 synchronized (this) { 5204 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5205 5206 long id = mInjector.binderClearCallingIdentity(); 5207 try { 5208 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 5209 } catch (RemoteException re) { 5210 // Shouldn't happen 5211 } finally { 5212 mInjector.binderRestoreCallingIdentity(id); 5213 } 5214 } 5215 } 5216 5217 @Override 5218 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 5219 Preconditions.checkNotNull(who, "ComponentName is null"); 5220 final int userHandle = UserHandle.getCallingUserId(); 5221 synchronized (this) { 5222 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5223 5224 long id = mInjector.binderClearCallingIdentity(); 5225 try { 5226 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 5227 } catch (RemoteException re) { 5228 // Shouldn't happen 5229 } finally { 5230 mInjector.binderRestoreCallingIdentity(id); 5231 } 5232 } 5233 } 5234 5235 @Override 5236 public void setApplicationRestrictionsManagingPackage(ComponentName admin, String packageName) { 5237 final int userHandle = mInjector.userHandleGetCallingUserId(); 5238 synchronized (this) { 5239 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5240 DevicePolicyData policy = getUserData(userHandle); 5241 policy.mApplicationRestrictionsManagingPackage = packageName; 5242 saveSettingsLocked(userHandle); 5243 } 5244 } 5245 5246 @Override 5247 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 5248 final int userHandle = mInjector.userHandleGetCallingUserId(); 5249 synchronized (this) { 5250 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5251 DevicePolicyData policy = getUserData(userHandle); 5252 return policy.mApplicationRestrictionsManagingPackage; 5253 } 5254 } 5255 5256 @Override 5257 public boolean isCallerApplicationRestrictionsManagingPackage() { 5258 final int callingUid = mInjector.binderGetCallingUid(); 5259 final int userHandle = UserHandle.getUserId(callingUid); 5260 synchronized (this) { 5261 final DevicePolicyData policy = getUserData(userHandle); 5262 if (policy.mApplicationRestrictionsManagingPackage == null) { 5263 return false; 5264 } 5265 5266 try { 5267 int uid = mContext.getPackageManager().getPackageUid( 5268 policy.mApplicationRestrictionsManagingPackage, userHandle); 5269 return uid == callingUid; 5270 } catch (NameNotFoundException e) { 5271 return false; 5272 } 5273 } 5274 } 5275 5276 private void enforceCanManageApplicationRestrictions(ComponentName who) { 5277 if (who != null) { 5278 synchronized (this) { 5279 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5280 } 5281 } else if (!isCallerApplicationRestrictionsManagingPackage()) { 5282 throw new SecurityException( 5283 "No admin component given, and caller cannot manage application restrictions " 5284 + "for other apps."); 5285 } 5286 } 5287 5288 @Override 5289 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 5290 enforceCanManageApplicationRestrictions(who); 5291 5292 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 5293 final long id = mInjector.binderClearCallingIdentity(); 5294 try { 5295 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 5296 } finally { 5297 mInjector.binderRestoreCallingIdentity(id); 5298 } 5299 } 5300 5301 @Override 5302 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 5303 PersistableBundle args) { 5304 if (!mHasFeature) { 5305 return; 5306 } 5307 Preconditions.checkNotNull(admin, "admin is null"); 5308 Preconditions.checkNotNull(agent, "agent is null"); 5309 final int userHandle = UserHandle.getCallingUserId(); 5310 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 5311 synchronized (this) { 5312 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 5313 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 5314 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 5315 saveSettingsLocked(userHandle); 5316 } 5317 } 5318 5319 @Override 5320 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 5321 ComponentName agent, int userHandle) { 5322 if (!mHasFeature) { 5323 return null; 5324 } 5325 Preconditions.checkNotNull(agent, "agent null"); 5326 enforceFullCrossUsersPermission(userHandle); 5327 5328 synchronized (this) { 5329 final String componentName = agent.flattenToString(); 5330 if (admin != null) { 5331 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 5332 if (ap == null) return null; 5333 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 5334 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 5335 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 5336 result.add(trustAgentInfo.options); 5337 return result; 5338 } 5339 5340 // Return strictest policy for this user and profiles that are visible from this user. 5341 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 5342 List<PersistableBundle> result = null; 5343 5344 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 5345 // of the options. If any admin doesn't have options, discard options for the rest 5346 // and return null. 5347 boolean allAdminsHaveOptions = true; 5348 for (UserInfo userInfo : profiles) { 5349 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 5350 final int N = policy.mAdminList.size(); 5351 for (int i=0; i < N; i++) { 5352 final ActiveAdmin active = policy.mAdminList.get(i); 5353 final boolean disablesTrust = (active.disabledKeyguardFeatures 5354 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 5355 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 5356 if (info != null && info.options != null && !info.options.isEmpty()) { 5357 if (disablesTrust) { 5358 if (result == null) { 5359 result = new ArrayList<PersistableBundle>(); 5360 } 5361 result.add(info.options); 5362 } else { 5363 Log.w(LOG_TAG, "Ignoring admin " + active.info 5364 + " because it has trust options but doesn't declare " 5365 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 5366 } 5367 } else if (disablesTrust) { 5368 allAdminsHaveOptions = false; 5369 break; 5370 } 5371 } 5372 } 5373 return allAdminsHaveOptions ? result : null; 5374 } 5375 } 5376 5377 @Override 5378 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 5379 Preconditions.checkNotNull(who, "ComponentName is null"); 5380 synchronized (this) { 5381 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5382 5383 int userHandle = UserHandle.getCallingUserId(); 5384 DevicePolicyData userData = getUserData(userHandle); 5385 userData.mRestrictionsProvider = permissionProvider; 5386 saveSettingsLocked(userHandle); 5387 } 5388 } 5389 5390 @Override 5391 public ComponentName getRestrictionsProvider(int userHandle) { 5392 synchronized (this) { 5393 if (!UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID)) { 5394 throw new SecurityException("Only the system can query the permission provider"); 5395 } 5396 DevicePolicyData userData = getUserData(userHandle); 5397 return userData != null ? userData.mRestrictionsProvider : null; 5398 } 5399 } 5400 5401 @Override 5402 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 5403 Preconditions.checkNotNull(who, "ComponentName is null"); 5404 int callingUserId = UserHandle.getCallingUserId(); 5405 synchronized (this) { 5406 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5407 5408 long id = mInjector.binderClearCallingIdentity(); 5409 try { 5410 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5411 if (parent == null) { 5412 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 5413 + "parent"); 5414 return; 5415 } 5416 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 5417 mIPackageManager.addCrossProfileIntentFilter( 5418 filter, who.getPackageName(), callingUserId, parent.id, 0); 5419 } 5420 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 5421 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 5422 parent.id, callingUserId, 0); 5423 } 5424 } catch (RemoteException re) { 5425 // Shouldn't happen 5426 } finally { 5427 mInjector.binderRestoreCallingIdentity(id); 5428 } 5429 } 5430 } 5431 5432 @Override 5433 public void clearCrossProfileIntentFilters(ComponentName who) { 5434 Preconditions.checkNotNull(who, "ComponentName is null"); 5435 int callingUserId = UserHandle.getCallingUserId(); 5436 synchronized (this) { 5437 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5438 long id = mInjector.binderClearCallingIdentity(); 5439 try { 5440 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5441 if (parent == null) { 5442 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 5443 + "parent"); 5444 return; 5445 } 5446 // Removing those that go from the managed profile to the parent. 5447 mIPackageManager.clearCrossProfileIntentFilters( 5448 callingUserId, who.getPackageName()); 5449 // And those that go from the parent to the managed profile. 5450 // If we want to support multiple managed profiles, we will have to only remove 5451 // those that have callingUserId as their target. 5452 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 5453 } catch (RemoteException re) { 5454 // Shouldn't happen 5455 } finally { 5456 mInjector.binderRestoreCallingIdentity(id); 5457 } 5458 } 5459 } 5460 5461 /** 5462 * @return true if all packages in enabledPackages are either in the list 5463 * permittedList or are a system app. 5464 */ 5465 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 5466 List<String> permittedList) { 5467 int userIdToCheck = UserHandle.getCallingUserId(); 5468 long id = mInjector.binderClearCallingIdentity(); 5469 try { 5470 // If we have an enabled packages list for a managed profile the packages 5471 // we should check are installed for the parent user. 5472 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 5473 if (user.isManagedProfile()) { 5474 userIdToCheck = user.profileGroupId; 5475 } 5476 5477 for (String enabledPackage : enabledPackages) { 5478 boolean systemService = false; 5479 try { 5480 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 5481 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 5482 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5483 } catch (RemoteException e) { 5484 Log.i(LOG_TAG, "Can't talk to package managed", e); 5485 } 5486 if (!systemService && !permittedList.contains(enabledPackage)) { 5487 return false; 5488 } 5489 } 5490 } finally { 5491 mInjector.binderRestoreCallingIdentity(id); 5492 } 5493 return true; 5494 } 5495 5496 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 5497 // Not using AccessibilityManager.getInstance because that guesses 5498 // at the user you require based on callingUid and caches for a given 5499 // process. 5500 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 5501 IAccessibilityManager service = iBinder == null 5502 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 5503 return new AccessibilityManager(mContext, service, userId); 5504 } 5505 5506 @Override 5507 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 5508 if (!mHasFeature) { 5509 return false; 5510 } 5511 Preconditions.checkNotNull(who, "ComponentName is null"); 5512 5513 if (packageList != null) { 5514 int userId = UserHandle.getCallingUserId(); 5515 List<AccessibilityServiceInfo> enabledServices = null; 5516 long id = mInjector.binderClearCallingIdentity(); 5517 try { 5518 UserInfo user = mUserManager.getUserInfo(userId); 5519 if (user.isManagedProfile()) { 5520 userId = user.profileGroupId; 5521 } 5522 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 5523 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 5524 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 5525 } finally { 5526 mInjector.binderRestoreCallingIdentity(id); 5527 } 5528 5529 if (enabledServices != null) { 5530 List<String> enabledPackages = new ArrayList<String>(); 5531 for (AccessibilityServiceInfo service : enabledServices) { 5532 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 5533 } 5534 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5535 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 5536 + "because it contains already enabled accesibility services."); 5537 return false; 5538 } 5539 } 5540 } 5541 5542 synchronized (this) { 5543 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5544 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5545 admin.permittedAccessiblityServices = packageList; 5546 saveSettingsLocked(UserHandle.getCallingUserId()); 5547 } 5548 return true; 5549 } 5550 5551 @Override 5552 public List getPermittedAccessibilityServices(ComponentName who) { 5553 if (!mHasFeature) { 5554 return null; 5555 } 5556 Preconditions.checkNotNull(who, "ComponentName is null"); 5557 5558 synchronized (this) { 5559 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5560 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5561 return admin.permittedAccessiblityServices; 5562 } 5563 } 5564 5565 @Override 5566 public List getPermittedAccessibilityServicesForUser(int userId) { 5567 if (!mHasFeature) { 5568 return null; 5569 } 5570 synchronized (this) { 5571 List<String> result = null; 5572 // If we have multiple profiles we return the intersection of the 5573 // permitted lists. This can happen in cases where we have a device 5574 // and profile owner. 5575 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5576 final int PROFILES_SIZE = profiles.size(); 5577 for (int i = 0; i < PROFILES_SIZE; ++i) { 5578 // Just loop though all admins, only device or profiles 5579 // owners can have permitted lists set. 5580 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5581 final int N = policy.mAdminList.size(); 5582 for (int j = 0; j < N; j++) { 5583 ActiveAdmin admin = policy.mAdminList.get(j); 5584 List<String> fromAdmin = admin.permittedAccessiblityServices; 5585 if (fromAdmin != null) { 5586 if (result == null) { 5587 result = new ArrayList<String>(fromAdmin); 5588 } else { 5589 result.retainAll(fromAdmin); 5590 } 5591 } 5592 } 5593 } 5594 5595 // If we have a permitted list add all system accessibility services. 5596 if (result != null) { 5597 long id = mInjector.binderClearCallingIdentity(); 5598 try { 5599 UserInfo user = mUserManager.getUserInfo(userId); 5600 if (user.isManagedProfile()) { 5601 userId = user.profileGroupId; 5602 } 5603 AccessibilityManager accessibilityManager = 5604 getAccessibilityManagerForUser(userId); 5605 List<AccessibilityServiceInfo> installedServices = 5606 accessibilityManager.getInstalledAccessibilityServiceList(); 5607 5608 if (installedServices != null) { 5609 for (AccessibilityServiceInfo service : installedServices) { 5610 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 5611 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5612 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5613 result.add(serviceInfo.packageName); 5614 } 5615 } 5616 } 5617 } finally { 5618 mInjector.binderRestoreCallingIdentity(id); 5619 } 5620 } 5621 5622 return result; 5623 } 5624 } 5625 5626 private boolean checkCallerIsCurrentUserOrProfile() { 5627 int callingUserId = UserHandle.getCallingUserId(); 5628 long token = mInjector.binderClearCallingIdentity(); 5629 try { 5630 UserInfo currentUser; 5631 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 5632 try { 5633 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5634 } catch (RemoteException e) { 5635 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 5636 return false; 5637 } 5638 5639 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 5640 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 5641 + "of a user that isn't the foreground user."); 5642 return false; 5643 } 5644 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 5645 Slog.e(LOG_TAG, "Cannot set permitted input methods " 5646 + "of a user that isn't the foreground user."); 5647 return false; 5648 } 5649 } finally { 5650 mInjector.binderRestoreCallingIdentity(token); 5651 } 5652 return true; 5653 } 5654 5655 @Override 5656 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 5657 if (!mHasFeature) { 5658 return false; 5659 } 5660 Preconditions.checkNotNull(who, "ComponentName is null"); 5661 5662 // TODO When InputMethodManager supports per user calls remove 5663 // this restriction. 5664 if (!checkCallerIsCurrentUserOrProfile()) { 5665 return false; 5666 } 5667 5668 if (packageList != null) { 5669 // InputMethodManager fetches input methods for current user. 5670 // So this can only be set when calling user is the current user 5671 // or parent is current user in case of managed profiles. 5672 InputMethodManager inputMethodManager = 5673 mContext.getSystemService(InputMethodManager.class); 5674 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 5675 5676 if (enabledImes != null) { 5677 List<String> enabledPackages = new ArrayList<String>(); 5678 for (InputMethodInfo ime : enabledImes) { 5679 enabledPackages.add(ime.getPackageName()); 5680 } 5681 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5682 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 5683 + "because it contains already enabled input method."); 5684 return false; 5685 } 5686 } 5687 } 5688 5689 synchronized (this) { 5690 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5691 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5692 admin.permittedInputMethods = packageList; 5693 saveSettingsLocked(UserHandle.getCallingUserId()); 5694 } 5695 return true; 5696 } 5697 5698 @Override 5699 public List getPermittedInputMethods(ComponentName who) { 5700 if (!mHasFeature) { 5701 return null; 5702 } 5703 Preconditions.checkNotNull(who, "ComponentName is null"); 5704 5705 synchronized (this) { 5706 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5707 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5708 return admin.permittedInputMethods; 5709 } 5710 } 5711 5712 @Override 5713 public List getPermittedInputMethodsForCurrentUser() { 5714 UserInfo currentUser; 5715 try { 5716 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5717 } catch (RemoteException e) { 5718 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 5719 // Activity managed is dead, just allow all IMEs 5720 return null; 5721 } 5722 5723 int userId = currentUser.id; 5724 synchronized (this) { 5725 List<String> result = null; 5726 // If we have multiple profiles we return the intersection of the 5727 // permitted lists. This can happen in cases where we have a device 5728 // and profile owner. 5729 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5730 final int PROFILES_SIZE = profiles.size(); 5731 for (int i = 0; i < PROFILES_SIZE; ++i) { 5732 // Just loop though all admins, only device or profiles 5733 // owners can have permitted lists set. 5734 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5735 final int N = policy.mAdminList.size(); 5736 for (int j = 0; j < N; j++) { 5737 ActiveAdmin admin = policy.mAdminList.get(j); 5738 List<String> fromAdmin = admin.permittedInputMethods; 5739 if (fromAdmin != null) { 5740 if (result == null) { 5741 result = new ArrayList<String>(fromAdmin); 5742 } else { 5743 result.retainAll(fromAdmin); 5744 } 5745 } 5746 } 5747 } 5748 5749 // If we have a permitted list add all system input methods. 5750 if (result != null) { 5751 InputMethodManager inputMethodManager = 5752 mContext.getSystemService(InputMethodManager.class); 5753 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 5754 long id = mInjector.binderClearCallingIdentity(); 5755 try { 5756 if (imes != null) { 5757 for (InputMethodInfo ime : imes) { 5758 ServiceInfo serviceInfo = ime.getServiceInfo(); 5759 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5760 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5761 result.add(serviceInfo.packageName); 5762 } 5763 } 5764 } 5765 } finally { 5766 mInjector.binderRestoreCallingIdentity(id); 5767 } 5768 } 5769 return result; 5770 } 5771 } 5772 5773 @Override 5774 public UserHandle createUser(ComponentName who, String name) { 5775 Preconditions.checkNotNull(who, "ComponentName is null"); 5776 synchronized (this) { 5777 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5778 5779 long id = mInjector.binderClearCallingIdentity(); 5780 try { 5781 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 5782 if (userInfo != null) { 5783 return userInfo.getUserHandle(); 5784 } 5785 return null; 5786 } finally { 5787 mInjector.binderRestoreCallingIdentity(id); 5788 } 5789 } 5790 } 5791 5792 @Override 5793 public UserHandle createAndInitializeUser(ComponentName who, String name, 5794 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 5795 UserHandle user = createUser(who, name); 5796 if (user == null) { 5797 return null; 5798 } 5799 long id = mInjector.binderClearCallingIdentity(); 5800 try { 5801 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 5802 5803 final int userHandle = user.getIdentifier(); 5804 try { 5805 // Install the profile owner if not present. 5806 if (!mIPackageManager.isPackageAvailable(profileOwnerPkg, userHandle)) { 5807 mIPackageManager.installExistingPackageAsUser(profileOwnerPkg, userHandle); 5808 } 5809 5810 // Start user in background. 5811 mInjector.getIActivityManager().startUserInBackground(userHandle); 5812 } catch (RemoteException e) { 5813 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 5814 } 5815 5816 setActiveAdmin(profileOwnerComponent, true, userHandle, adminExtras); 5817 setProfileOwner(profileOwnerComponent, ownerName, userHandle); 5818 return user; 5819 } finally { 5820 mInjector.binderRestoreCallingIdentity(id); 5821 } 5822 } 5823 5824 @Override 5825 public boolean removeUser(ComponentName who, UserHandle userHandle) { 5826 Preconditions.checkNotNull(who, "ComponentName is null"); 5827 synchronized (this) { 5828 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5829 5830 long id = mInjector.binderClearCallingIdentity(); 5831 try { 5832 return mUserManager.removeUser(userHandle.getIdentifier()); 5833 } finally { 5834 mInjector.binderRestoreCallingIdentity(id); 5835 } 5836 } 5837 } 5838 5839 @Override 5840 public boolean switchUser(ComponentName who, UserHandle userHandle) { 5841 Preconditions.checkNotNull(who, "ComponentName is null"); 5842 synchronized (this) { 5843 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5844 5845 long id = mInjector.binderClearCallingIdentity(); 5846 try { 5847 int userId = UserHandle.USER_SYSTEM; 5848 if (userHandle != null) { 5849 userId = userHandle.getIdentifier(); 5850 } 5851 return mInjector.getIActivityManager().switchUser(userId); 5852 } catch (RemoteException e) { 5853 Log.e(LOG_TAG, "Couldn't switch user", e); 5854 return false; 5855 } finally { 5856 mInjector.binderRestoreCallingIdentity(id); 5857 } 5858 } 5859 } 5860 5861 @Override 5862 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 5863 enforceCanManageApplicationRestrictions(who); 5864 5865 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 5866 final long id = mInjector.binderClearCallingIdentity(); 5867 try { 5868 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 5869 // if no restrictions were saved, mUserManager.getApplicationRestrictions 5870 // returns null, but DPM method should return an empty Bundle as per JavaDoc 5871 return bundle != null ? bundle : Bundle.EMPTY; 5872 } finally { 5873 mInjector.binderRestoreCallingIdentity(id); 5874 } 5875 } 5876 5877 @Override 5878 public boolean setPackageSuspended(ComponentName who, String packageName, 5879 boolean suspended) { 5880 Preconditions.checkNotNull(who, "ComponentName is null"); 5881 int callingUserId = UserHandle.getCallingUserId(); 5882 synchronized (this) { 5883 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5884 5885 long id = mInjector.binderClearCallingIdentity(); 5886 try { 5887 return mIPackageManager.setPackageSuspendedAsUser( 5888 packageName, suspended, callingUserId); 5889 } catch (RemoteException re) { 5890 // Shouldn't happen. 5891 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 5892 } finally { 5893 mInjector.binderRestoreCallingIdentity(id); 5894 } 5895 return false; 5896 } 5897 } 5898 5899 @Override 5900 public boolean getPackageSuspended(ComponentName who, String packageName) { 5901 Preconditions.checkNotNull(who, "ComponentName is null"); 5902 int callingUserId = UserHandle.getCallingUserId(); 5903 synchronized (this) { 5904 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5905 5906 long id = mInjector.binderClearCallingIdentity(); 5907 try { 5908 ApplicationInfo appInfo = mIPackageManager.getApplicationInfo( 5909 packageName, 0, callingUserId); 5910 return appInfo != null && 5911 (appInfo.flags & ApplicationInfo.FLAG_SUSPENDED) != 0; 5912 } catch (RemoteException re) { 5913 // Shouldn't happen. 5914 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 5915 } finally { 5916 mInjector.binderRestoreCallingIdentity(id); 5917 } 5918 return false; 5919 } 5920 } 5921 5922 @Override 5923 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 5924 Preconditions.checkNotNull(who, "ComponentName is null"); 5925 final int userHandle = mInjector.userHandleGetCallingUserId(); 5926 synchronized (this) { 5927 ActiveAdmin activeAdmin = 5928 getActiveAdminForCallerLocked(who, 5929 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5930 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 5931 if (isDeviceOwner) { 5932 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 5933 throw new SecurityException("Device owner cannot set user restriction " + key); 5934 } 5935 } else { // profile owner 5936 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 5937 throw new SecurityException("Profile owner cannot set user restriction " + key); 5938 } 5939 } 5940 5941 // Save the restriction to ActiveAdmin. 5942 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 5943 saveSettingsLocked(userHandle); 5944 5945 pushUserRestrictions(userHandle); 5946 5947 sendChangedNotification(userHandle); 5948 } 5949 } 5950 5951 private void pushUserRestrictions(int userId) { 5952 synchronized (this) { 5953 final Bundle global; 5954 final Bundle local = new Bundle(); 5955 if (mOwners.isDeviceOwnerUserId(userId)) { 5956 global = new Bundle(); 5957 5958 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5959 if (deviceOwner == null) { 5960 return; // Shouldn't happen. 5961 } 5962 5963 UserRestrictionsUtils.sortToGlobalAndLocal(deviceOwner.userRestrictions, 5964 global, local); 5965 // DO can disable camera globally. 5966 if (deviceOwner.disableCamera) { 5967 global.putBoolean(UserManager.DISALLOW_CAMERA, true); 5968 } 5969 } else { 5970 global = null; 5971 5972 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 5973 if (profileOwner != null) { 5974 UserRestrictionsUtils.merge(local, profileOwner.userRestrictions); 5975 } 5976 } 5977 // Also merge in *local* camera restriction. 5978 if (getCameraDisabled(/* who= */ null, 5979 userId, /* mergeDeviceOwnerRestriction= */ false)) { 5980 local.putBoolean(UserManager.DISALLOW_CAMERA, true); 5981 } 5982 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, local, global); 5983 } 5984 } 5985 5986 @Override 5987 public Bundle getUserRestrictions(ComponentName who, int userHandle) { 5988 Preconditions.checkNotNull(who, "ComponentName is null"); 5989 enforceFullCrossUsersPermission(userHandle); 5990 synchronized (this) { 5991 ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(who, userHandle); 5992 if (activeAdmin == null) { 5993 throw new SecurityException("No active admin: " + activeAdmin); 5994 } 5995 if (activeAdmin.getUid() != mInjector.binderGetCallingUid()) { 5996 mContext.enforceCallingOrSelfPermission( 5997 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, 5998 "Calling uid " + mInjector.binderGetCallingUid() + " neither owns the admin" 5999 + " " + who + " nor has MANAGE_PROFILE_AND_DEVICE_OWNERS permission"); 6000 } 6001 return activeAdmin.userRestrictions; 6002 } 6003 } 6004 6005 @Override 6006 public boolean setApplicationHidden(ComponentName who, String packageName, 6007 boolean hidden) { 6008 Preconditions.checkNotNull(who, "ComponentName is null"); 6009 int callingUserId = UserHandle.getCallingUserId(); 6010 synchronized (this) { 6011 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6012 6013 long id = mInjector.binderClearCallingIdentity(); 6014 try { 6015 return mIPackageManager.setApplicationHiddenSettingAsUser( 6016 packageName, hidden, callingUserId); 6017 } catch (RemoteException re) { 6018 // shouldn't happen 6019 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 6020 } finally { 6021 mInjector.binderRestoreCallingIdentity(id); 6022 } 6023 return false; 6024 } 6025 } 6026 6027 @Override 6028 public boolean isApplicationHidden(ComponentName who, String packageName) { 6029 Preconditions.checkNotNull(who, "ComponentName is null"); 6030 int callingUserId = UserHandle.getCallingUserId(); 6031 synchronized (this) { 6032 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6033 6034 long id = mInjector.binderClearCallingIdentity(); 6035 try { 6036 return mIPackageManager.getApplicationHiddenSettingAsUser( 6037 packageName, callingUserId); 6038 } catch (RemoteException re) { 6039 // shouldn't happen 6040 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 6041 } finally { 6042 mInjector.binderRestoreCallingIdentity(id); 6043 } 6044 return false; 6045 } 6046 } 6047 6048 @Override 6049 public void enableSystemApp(ComponentName who, String packageName) { 6050 Preconditions.checkNotNull(who, "ComponentName is null"); 6051 synchronized (this) { 6052 // This API can only be called by an active device admin, 6053 // so try to retrieve it to check that the caller is one. 6054 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6055 6056 int userId = UserHandle.getCallingUserId(); 6057 long id = mInjector.binderClearCallingIdentity(); 6058 6059 try { 6060 if (VERBOSE_LOG) { 6061 Slog.v(LOG_TAG, "installing " + packageName + " for " 6062 + userId); 6063 } 6064 6065 UserManager um = UserManager.get(mContext); 6066 UserInfo primaryUser = um.getProfileParent(userId); 6067 6068 // Call did not come from a managed profile 6069 if (primaryUser == null) { 6070 primaryUser = um.getUserInfo(userId); 6071 } 6072 6073 if (!isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 6074 throw new IllegalArgumentException("Only system apps can be enabled this way."); 6075 } 6076 6077 // Install the app. 6078 mIPackageManager.installExistingPackageAsUser(packageName, userId); 6079 6080 } catch (RemoteException re) { 6081 // shouldn't happen 6082 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 6083 } finally { 6084 mInjector.binderRestoreCallingIdentity(id); 6085 } 6086 } 6087 } 6088 6089 @Override 6090 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 6091 Preconditions.checkNotNull(who, "ComponentName is null"); 6092 synchronized (this) { 6093 // This API can only be called by an active device admin, 6094 // so try to retrieve it to check that the caller is one. 6095 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6096 6097 int userId = UserHandle.getCallingUserId(); 6098 long id = mInjector.binderClearCallingIdentity(); 6099 6100 try { 6101 UserManager um = UserManager.get(mContext); 6102 UserInfo primaryUser = um.getProfileParent(userId); 6103 6104 // Call did not come from a managed profile. 6105 if (primaryUser == null) { 6106 primaryUser = um.getUserInfo(userId); 6107 } 6108 6109 List<ResolveInfo> activitiesToEnable = mIPackageManager.queryIntentActivities( 6110 intent, 6111 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 6112 0, // no flags 6113 primaryUser.id); 6114 6115 if (VERBOSE_LOG) { 6116 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 6117 } 6118 int numberOfAppsInstalled = 0; 6119 if (activitiesToEnable != null) { 6120 for (ResolveInfo info : activitiesToEnable) { 6121 if (info.activityInfo != null) { 6122 String packageName = info.activityInfo.packageName; 6123 if (isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 6124 numberOfAppsInstalled++; 6125 mIPackageManager.installExistingPackageAsUser(packageName, userId); 6126 } else { 6127 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 6128 + " system app"); 6129 } 6130 } 6131 } 6132 } 6133 return numberOfAppsInstalled; 6134 } catch (RemoteException e) { 6135 // shouldn't happen 6136 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 6137 return 0; 6138 } finally { 6139 mInjector.binderRestoreCallingIdentity(id); 6140 } 6141 } 6142 } 6143 6144 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 6145 throws RemoteException { 6146 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 6147 userId); 6148 if (appInfo == null) { 6149 throw new IllegalArgumentException("The application " + packageName + 6150 " is not present on this device"); 6151 } 6152 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 6153 } 6154 6155 @Override 6156 public void setAccountManagementDisabled(ComponentName who, String accountType, 6157 boolean disabled) { 6158 if (!mHasFeature) { 6159 return; 6160 } 6161 Preconditions.checkNotNull(who, "ComponentName is null"); 6162 synchronized (this) { 6163 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6164 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6165 if (disabled) { 6166 ap.accountTypesWithManagementDisabled.add(accountType); 6167 } else { 6168 ap.accountTypesWithManagementDisabled.remove(accountType); 6169 } 6170 saveSettingsLocked(UserHandle.getCallingUserId()); 6171 } 6172 } 6173 6174 @Override 6175 public String[] getAccountTypesWithManagementDisabled() { 6176 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 6177 } 6178 6179 @Override 6180 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 6181 enforceFullCrossUsersPermission(userId); 6182 if (!mHasFeature) { 6183 return null; 6184 } 6185 synchronized (this) { 6186 DevicePolicyData policy = getUserData(userId); 6187 final int N = policy.mAdminList.size(); 6188 ArraySet<String> resultSet = new ArraySet<>(); 6189 for (int i = 0; i < N; i++) { 6190 ActiveAdmin admin = policy.mAdminList.get(i); 6191 resultSet.addAll(admin.accountTypesWithManagementDisabled); 6192 } 6193 return resultSet.toArray(new String[resultSet.size()]); 6194 } 6195 } 6196 6197 @Override 6198 public void setUninstallBlocked(ComponentName who, String packageName, 6199 boolean uninstallBlocked) { 6200 Preconditions.checkNotNull(who, "ComponentName is null"); 6201 final int userId = UserHandle.getCallingUserId(); 6202 synchronized (this) { 6203 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6204 6205 long id = mInjector.binderClearCallingIdentity(); 6206 try { 6207 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 6208 } catch (RemoteException re) { 6209 // Shouldn't happen. 6210 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 6211 } finally { 6212 mInjector.binderRestoreCallingIdentity(id); 6213 } 6214 } 6215 } 6216 6217 @Override 6218 public boolean isUninstallBlocked(ComponentName who, String packageName) { 6219 // This function should return true if and only if the package is blocked by 6220 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 6221 // when the package is a system app, or when it is an active device admin. 6222 final int userId = UserHandle.getCallingUserId(); 6223 6224 synchronized (this) { 6225 if (who != null) { 6226 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6227 } 6228 6229 long id = mInjector.binderClearCallingIdentity(); 6230 try { 6231 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 6232 } catch (RemoteException re) { 6233 // Shouldn't happen. 6234 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 6235 } finally { 6236 mInjector.binderRestoreCallingIdentity(id); 6237 } 6238 } 6239 return false; 6240 } 6241 6242 @Override 6243 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 6244 if (!mHasFeature) { 6245 return; 6246 } 6247 Preconditions.checkNotNull(who, "ComponentName is null"); 6248 synchronized (this) { 6249 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6250 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6251 if (admin.disableCallerId != disabled) { 6252 admin.disableCallerId = disabled; 6253 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 6254 } 6255 } 6256 } 6257 6258 @Override 6259 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 6260 if (!mHasFeature) { 6261 return false; 6262 } 6263 Preconditions.checkNotNull(who, "ComponentName is null"); 6264 synchronized (this) { 6265 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6266 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6267 return admin.disableCallerId; 6268 } 6269 } 6270 6271 @Override 6272 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 6273 enforceCrossUsersPermission(userId); 6274 synchronized (this) { 6275 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 6276 return (admin != null) ? admin.disableCallerId : false; 6277 } 6278 } 6279 6280 @Override 6281 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 6282 if (!mHasFeature) { 6283 return; 6284 } 6285 Preconditions.checkNotNull(who, "ComponentName is null"); 6286 synchronized (this) { 6287 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6288 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6289 if (admin.disableContactsSearch != disabled) { 6290 admin.disableContactsSearch = disabled; 6291 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 6292 } 6293 } 6294 } 6295 6296 @Override 6297 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 6298 if (!mHasFeature) { 6299 return false; 6300 } 6301 Preconditions.checkNotNull(who, "ComponentName is null"); 6302 synchronized (this) { 6303 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6304 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6305 return admin.disableContactsSearch; 6306 } 6307 } 6308 6309 @Override 6310 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 6311 enforceCrossUsersPermission(userId); 6312 synchronized (this) { 6313 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 6314 return (admin != null) ? admin.disableContactsSearch : false; 6315 } 6316 } 6317 6318 @Override 6319 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 6320 long actualDirectoryId, Intent originalIntent) { 6321 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent( 6322 actualLookupKey, actualContactId, actualDirectoryId, originalIntent); 6323 final int callingUserId = UserHandle.getCallingUserId(); 6324 6325 final long ident = mInjector.binderClearCallingIdentity(); 6326 try { 6327 synchronized (this) { 6328 final int managedUserId = getManagedUserId(callingUserId); 6329 if (managedUserId < 0) { 6330 return; 6331 } 6332 if (getCrossProfileCallerIdDisabledForUser(managedUserId)) { 6333 if (VERBOSE_LOG) { 6334 Log.v(LOG_TAG, 6335 "Cross-profile contacts access disabled for user " + managedUserId); 6336 } 6337 return; 6338 } 6339 ContactsInternal.startQuickContactWithErrorToastForUser( 6340 mContext, intent, new UserHandle(managedUserId)); 6341 } 6342 } finally { 6343 mInjector.binderRestoreCallingIdentity(ident); 6344 } 6345 } 6346 6347 /** 6348 * @return the user ID of the managed user that is linked to the current user, if any. 6349 * Otherwise -1. 6350 */ 6351 public int getManagedUserId(int callingUserId) { 6352 if (VERBOSE_LOG) { 6353 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 6354 } 6355 6356 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 6357 if (ui.id == callingUserId || !ui.isManagedProfile()) { 6358 continue; // Caller user self, or not a managed profile. Skip. 6359 } 6360 if (VERBOSE_LOG) { 6361 Log.v(LOG_TAG, "Managed user=" + ui.id); 6362 } 6363 return ui.id; 6364 } 6365 if (VERBOSE_LOG) { 6366 Log.v(LOG_TAG, "Managed user not found."); 6367 } 6368 return -1; 6369 } 6370 6371 @Override 6372 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 6373 if (!mHasFeature) { 6374 return; 6375 } 6376 Preconditions.checkNotNull(who, "ComponentName is null"); 6377 synchronized (this) { 6378 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6379 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6380 if (admin.disableBluetoothContactSharing != disabled) { 6381 admin.disableBluetoothContactSharing = disabled; 6382 saveSettingsLocked(UserHandle.getCallingUserId()); 6383 } 6384 } 6385 } 6386 6387 @Override 6388 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 6389 if (!mHasFeature) { 6390 return false; 6391 } 6392 Preconditions.checkNotNull(who, "ComponentName is null"); 6393 synchronized (this) { 6394 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6395 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6396 return admin.disableBluetoothContactSharing; 6397 } 6398 } 6399 6400 @Override 6401 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 6402 // TODO: Should there be a check to make sure this relationship is 6403 // within a profile group? 6404 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 6405 synchronized (this) { 6406 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 6407 return (admin != null) ? admin.disableBluetoothContactSharing : false; 6408 } 6409 } 6410 6411 /** 6412 * Sets which packages may enter lock task mode. 6413 * 6414 * This function can only be called by the device owner. 6415 * @param packages The list of packages allowed to enter lock task mode. 6416 */ 6417 @Override 6418 public void setLockTaskPackages(ComponentName who, String[] packages) 6419 throws SecurityException { 6420 Preconditions.checkNotNull(who, "ComponentName is null"); 6421 synchronized (this) { 6422 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6423 6424 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6425 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 6426 } 6427 } 6428 6429 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 6430 DevicePolicyData policy = getUserData(userHandle); 6431 policy.mLockTaskPackages = packages; 6432 6433 // Store the settings persistently. 6434 saveSettingsLocked(userHandle); 6435 updateLockTaskPackagesLocked(packages, userHandle); 6436 } 6437 6438 /** 6439 * This function returns the list of components allowed to start the task lock mode. 6440 */ 6441 @Override 6442 public String[] getLockTaskPackages(ComponentName who) { 6443 Preconditions.checkNotNull(who, "ComponentName is null"); 6444 synchronized (this) { 6445 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6446 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6447 final List<String> packages = getLockTaskPackagesLocked(userHandle); 6448 return packages.toArray(new String[packages.size()]); 6449 } 6450 } 6451 6452 private List<String> getLockTaskPackagesLocked(int userHandle) { 6453 final DevicePolicyData policy = getUserData(userHandle); 6454 return policy.mLockTaskPackages; 6455 } 6456 6457 /** 6458 * This function lets the caller know whether the given package is allowed to start the 6459 * lock task mode. 6460 * @param pkg The package to check 6461 */ 6462 @Override 6463 public boolean isLockTaskPermitted(String pkg) { 6464 // Get current user's devicepolicy 6465 int uid = mInjector.binderGetCallingUid(); 6466 int userHandle = UserHandle.getUserId(uid); 6467 DevicePolicyData policy = getUserData(userHandle); 6468 synchronized (this) { 6469 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 6470 String lockTaskPackage = policy.mLockTaskPackages.get(i); 6471 6472 // If the given package equals one of the packages stored our list, 6473 // we allow this package to start lock task mode. 6474 if (lockTaskPackage.equals(pkg)) { 6475 return true; 6476 } 6477 } 6478 } 6479 return false; 6480 } 6481 6482 @Override 6483 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 6484 if (!UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID)) { 6485 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 6486 } 6487 synchronized (this) { 6488 final DevicePolicyData policy = getUserData(userHandle); 6489 Bundle adminExtras = new Bundle(); 6490 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 6491 for (ActiveAdmin admin : policy.mAdminList) { 6492 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 6493 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 6494 if (ownsDevice || ownsProfile) { 6495 if (isEnabled) { 6496 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 6497 adminExtras, null); 6498 } else { 6499 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 6500 } 6501 } 6502 } 6503 } 6504 } 6505 6506 @Override 6507 public void setGlobalSetting(ComponentName who, String setting, String value) { 6508 Preconditions.checkNotNull(who, "ComponentName is null"); 6509 6510 synchronized (this) { 6511 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6512 6513 // Some settings are no supported any more. However we do not want to throw a 6514 // SecurityException to avoid breaking apps. 6515 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 6516 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 6517 return; 6518 } 6519 6520 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 6521 throw new SecurityException(String.format( 6522 "Permission denial: device owners cannot update %1$s", setting)); 6523 } 6524 6525 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 6526 // ignore if it contradicts an existing policy 6527 long timeMs = getMaximumTimeToLock(who, UserHandle.getCallingUserId()); 6528 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 6529 return; 6530 } 6531 } 6532 6533 long id = mInjector.binderClearCallingIdentity(); 6534 try { 6535 mInjector.settingsGlobalPutString(setting, value); 6536 } finally { 6537 mInjector.binderRestoreCallingIdentity(id); 6538 } 6539 } 6540 } 6541 6542 @Override 6543 public void setSecureSetting(ComponentName who, String setting, String value) { 6544 Preconditions.checkNotNull(who, "ComponentName is null"); 6545 int callingUserId = mInjector.userHandleGetCallingUserId(); 6546 6547 synchronized (this) { 6548 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6549 6550 if (isDeviceOwner(who, mInjector.userHandleGetCallingUserId())) { 6551 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 6552 throw new SecurityException(String.format( 6553 "Permission denial: Device owners cannot update %1$s", setting)); 6554 } 6555 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 6556 throw new SecurityException(String.format( 6557 "Permission denial: Profile owners cannot update %1$s", setting)); 6558 } 6559 6560 long id = mInjector.binderClearCallingIdentity(); 6561 try { 6562 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 6563 } finally { 6564 mInjector.binderRestoreCallingIdentity(id); 6565 } 6566 } 6567 } 6568 6569 @Override 6570 public void setMasterVolumeMuted(ComponentName who, boolean on) { 6571 Preconditions.checkNotNull(who, "ComponentName is null"); 6572 synchronized (this) { 6573 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6574 int userId = UserHandle.getCallingUserId(); 6575 long identity = mInjector.binderClearCallingIdentity(); 6576 try { 6577 IAudioService iAudioService = IAudioService.Stub.asInterface( 6578 ServiceManager.getService(Context.AUDIO_SERVICE)); 6579 iAudioService.setMasterMute(on, 0, mContext.getPackageName(), userId); 6580 } catch (RemoteException re) { 6581 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 6582 } finally { 6583 mInjector.binderRestoreCallingIdentity(identity); 6584 } 6585 } 6586 } 6587 6588 @Override 6589 public boolean isMasterVolumeMuted(ComponentName who) { 6590 Preconditions.checkNotNull(who, "ComponentName is null"); 6591 synchronized (this) { 6592 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6593 6594 AudioManager audioManager = 6595 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 6596 return audioManager.isMasterMute(); 6597 } 6598 } 6599 6600 @Override 6601 public void setUserIcon(ComponentName who, Bitmap icon) { 6602 synchronized (this) { 6603 Preconditions.checkNotNull(who, "ComponentName is null"); 6604 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6605 6606 int userId = UserHandle.getCallingUserId(); 6607 long id = mInjector.binderClearCallingIdentity(); 6608 try { 6609 mUserManager.setUserIcon(userId, icon); 6610 } finally { 6611 mInjector.binderRestoreCallingIdentity(id); 6612 } 6613 } 6614 } 6615 6616 @Override 6617 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 6618 Preconditions.checkNotNull(who, "ComponentName is null"); 6619 synchronized (this) { 6620 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6621 } 6622 final int userId = UserHandle.getCallingUserId(); 6623 LockPatternUtils utils = new LockPatternUtils(mContext); 6624 6625 long ident = mInjector.binderClearCallingIdentity(); 6626 try { 6627 // disallow disabling the keyguard if a password is currently set 6628 if (disabled && utils.isSecure(userId)) { 6629 return false; 6630 } 6631 utils.setLockScreenDisabled(disabled, userId); 6632 } finally { 6633 mInjector.binderRestoreCallingIdentity(ident); 6634 } 6635 return true; 6636 } 6637 6638 @Override 6639 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 6640 int userId = UserHandle.getCallingUserId(); 6641 synchronized (this) { 6642 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6643 DevicePolicyData policy = getUserData(userId); 6644 if (policy.mStatusBarDisabled != disabled) { 6645 if (!setStatusBarDisabledInternal(disabled, userId)) { 6646 return false; 6647 } 6648 policy.mStatusBarDisabled = disabled; 6649 saveSettingsLocked(userId); 6650 } 6651 } 6652 return true; 6653 } 6654 6655 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 6656 long ident = mInjector.binderClearCallingIdentity(); 6657 try { 6658 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 6659 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 6660 if (statusBarService != null) { 6661 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 6662 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 6663 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 6664 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 6665 return true; 6666 } 6667 } catch (RemoteException e) { 6668 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 6669 } finally { 6670 mInjector.binderRestoreCallingIdentity(ident); 6671 } 6672 return false; 6673 } 6674 6675 /** 6676 * We need to update the internal state of whether a user has completed setup once. After 6677 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 6678 * as we don't trust any apps that might try to reset it. 6679 * <p> 6680 * Unfortunately, we don't know which user's setup state was changed, so we write all of 6681 * them. 6682 */ 6683 void updateUserSetupComplete() { 6684 List<UserInfo> users = mUserManager.getUsers(true); 6685 final int N = users.size(); 6686 for (int i = 0; i < N; i++) { 6687 int userHandle = users.get(i).id; 6688 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 6689 userHandle) != 0) { 6690 DevicePolicyData policy = getUserData(userHandle); 6691 if (!policy.mUserSetupComplete) { 6692 policy.mUserSetupComplete = true; 6693 synchronized (this) { 6694 saveSettingsLocked(userHandle); 6695 } 6696 } 6697 } 6698 } 6699 } 6700 6701 private class SetupContentObserver extends ContentObserver { 6702 6703 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 6704 Settings.Secure.USER_SETUP_COMPLETE); 6705 6706 public SetupContentObserver(Handler handler) { 6707 super(handler); 6708 } 6709 6710 void register(ContentResolver resolver) { 6711 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 6712 } 6713 6714 @Override 6715 public void onChange(boolean selfChange, Uri uri) { 6716 if (mUserSetupComplete.equals(uri)) { 6717 updateUserSetupComplete(); 6718 } 6719 } 6720 } 6721 6722 @VisibleForTesting 6723 final class LocalService extends DevicePolicyManagerInternal { 6724 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 6725 6726 @Override 6727 public List<String> getCrossProfileWidgetProviders(int profileId) { 6728 synchronized (DevicePolicyManagerService.this) { 6729 if (mOwners == null) { 6730 return Collections.emptyList(); 6731 } 6732 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 6733 if (ownerComponent == null) { 6734 return Collections.emptyList(); 6735 } 6736 6737 DevicePolicyData policy = getUserDataUnchecked(profileId); 6738 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 6739 6740 if (admin == null || admin.crossProfileWidgetProviders == null 6741 || admin.crossProfileWidgetProviders.isEmpty()) { 6742 return Collections.emptyList(); 6743 } 6744 6745 return admin.crossProfileWidgetProviders; 6746 } 6747 } 6748 6749 @Override 6750 public void addOnCrossProfileWidgetProvidersChangeListener( 6751 OnCrossProfileWidgetProvidersChangeListener listener) { 6752 synchronized (DevicePolicyManagerService.this) { 6753 if (mWidgetProviderListeners == null) { 6754 mWidgetProviderListeners = new ArrayList<>(); 6755 } 6756 if (!mWidgetProviderListeners.contains(listener)) { 6757 mWidgetProviderListeners.add(listener); 6758 } 6759 } 6760 } 6761 6762 @Override 6763 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 6764 final int userId = UserHandle.getUserId(uid); 6765 synchronized(DevicePolicyManagerService.this) { 6766 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 6767 } 6768 } 6769 6770 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 6771 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 6772 synchronized (DevicePolicyManagerService.this) { 6773 listeners = new ArrayList<>(mWidgetProviderListeners); 6774 } 6775 final int listenerCount = listeners.size(); 6776 for (int i = 0; i < listenerCount; i++) { 6777 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 6778 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 6779 } 6780 } 6781 } 6782 6783 /** 6784 * Returns true if specified admin is allowed to limit passwords and has a 6785 * {@code passwordQuality} of at least {@code minPasswordQuality} 6786 */ 6787 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 6788 if (admin.passwordQuality < minPasswordQuality) { 6789 return false; 6790 } 6791 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 6792 } 6793 6794 @Override 6795 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 6796 if (policy != null && !policy.isValid()) { 6797 throw new IllegalArgumentException("Invalid system update policy."); 6798 } 6799 synchronized (this) { 6800 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6801 if (policy == null) { 6802 mOwners.clearSystemUpdatePolicy(); 6803 } else { 6804 mOwners.setSystemUpdatePolicy(policy); 6805 } 6806 mOwners.writeDeviceOwner(); 6807 } 6808 mContext.sendBroadcastAsUser( 6809 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 6810 UserHandle.SYSTEM); 6811 } 6812 6813 @Override 6814 public SystemUpdatePolicy getSystemUpdatePolicy() { 6815 synchronized (this) { 6816 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 6817 if (policy != null && !policy.isValid()) { 6818 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 6819 return null; 6820 } 6821 return policy; 6822 } 6823 } 6824 6825 /** 6826 * Checks if the caller of the method is the device owner app. 6827 * 6828 * @param callerUid UID of the caller. 6829 * @return true if the caller is the device owner app 6830 */ 6831 @VisibleForTesting 6832 boolean isCallerDeviceOwner(int callerUid) { 6833 synchronized (this) { 6834 if (!mOwners.hasDeviceOwner()) { 6835 return false; 6836 } 6837 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 6838 return false; 6839 } 6840 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 6841 .getPackageName(); 6842 final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 6843 6844 for (String pkg : pkgs) { 6845 if (deviceOwnerPackageName.equals(pkg)) { 6846 return true; 6847 } 6848 } 6849 } 6850 6851 return false; 6852 } 6853 6854 @Override 6855 public void notifyPendingSystemUpdate(long updateReceivedTime) { 6856 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 6857 "Only the system update service can broadcast update information"); 6858 6859 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 6860 Slog.w(LOG_TAG, "Only the system update service in the system user " + 6861 "can broadcast update information."); 6862 return; 6863 } 6864 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 6865 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 6866 updateReceivedTime); 6867 6868 synchronized (this) { 6869 final String deviceOwnerPackage = 6870 mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerComponent().getPackageName() 6871 : null; 6872 if (deviceOwnerPackage == null) { 6873 return; 6874 } 6875 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 6876 6877 ActivityInfo[] receivers = null; 6878 try { 6879 receivers = mContext.getPackageManager().getPackageInfo( 6880 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 6881 } catch (NameNotFoundException e) { 6882 Log.e(LOG_TAG, "Cannot find device owner package", e); 6883 } 6884 if (receivers != null) { 6885 long ident = mInjector.binderClearCallingIdentity(); 6886 try { 6887 for (int i = 0; i < receivers.length; i++) { 6888 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 6889 intent.setComponent(new ComponentName(deviceOwnerPackage, 6890 receivers[i].name)); 6891 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 6892 } 6893 } 6894 } finally { 6895 mInjector.binderRestoreCallingIdentity(ident); 6896 } 6897 } 6898 } 6899 } 6900 6901 @Override 6902 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 6903 int userId = UserHandle.getCallingUserId(); 6904 synchronized (this) { 6905 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6906 DevicePolicyData userPolicy = getUserData(userId); 6907 if (userPolicy.mPermissionPolicy != policy) { 6908 userPolicy.mPermissionPolicy = policy; 6909 saveSettingsLocked(userId); 6910 } 6911 } 6912 } 6913 6914 @Override 6915 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 6916 int userId = UserHandle.getCallingUserId(); 6917 synchronized (this) { 6918 DevicePolicyData userPolicy = getUserData(userId); 6919 return userPolicy.mPermissionPolicy; 6920 } 6921 } 6922 6923 @Override 6924 public boolean setPermissionGrantState(ComponentName admin, String packageName, 6925 String permission, int grantState) throws RemoteException { 6926 UserHandle user = mInjector.binderGetCallingUserHandle(); 6927 synchronized (this) { 6928 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6929 long ident = mInjector.binderClearCallingIdentity(); 6930 try { 6931 if (getTargetSdk(packageName, user.getIdentifier()) 6932 < android.os.Build.VERSION_CODES.M) { 6933 return false; 6934 } 6935 final PackageManager packageManager = mContext.getPackageManager(); 6936 switch (grantState) { 6937 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 6938 packageManager.grantRuntimePermission(packageName, permission, user); 6939 packageManager.updatePermissionFlags(permission, packageName, 6940 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6941 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6942 } break; 6943 6944 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 6945 packageManager.revokeRuntimePermission(packageName, 6946 permission, user); 6947 packageManager.updatePermissionFlags(permission, packageName, 6948 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6949 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6950 } break; 6951 6952 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 6953 packageManager.updatePermissionFlags(permission, packageName, 6954 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 6955 } break; 6956 } 6957 return true; 6958 } catch (SecurityException se) { 6959 return false; 6960 } finally { 6961 mInjector.binderRestoreCallingIdentity(ident); 6962 } 6963 } 6964 } 6965 6966 @Override 6967 public int getPermissionGrantState(ComponentName admin, String packageName, 6968 String permission) throws RemoteException { 6969 PackageManager packageManager = mContext.getPackageManager(); 6970 6971 UserHandle user = mInjector.binderGetCallingUserHandle(); 6972 synchronized (this) { 6973 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6974 long ident = mInjector.binderClearCallingIdentity(); 6975 try { 6976 int granted = mIPackageManager.checkPermission(permission, 6977 packageName, user.getIdentifier()); 6978 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 6979 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 6980 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 6981 // Not controlled by policy 6982 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 6983 } else { 6984 // Policy controlled so return result based on permission grant state 6985 return granted == PackageManager.PERMISSION_GRANTED 6986 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 6987 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 6988 } 6989 } finally { 6990 mInjector.binderRestoreCallingIdentity(ident); 6991 } 6992 } 6993 } 6994 6995 boolean isPackageInstalledForUser(String packageName, int userHandle) { 6996 try { 6997 PackageInfo pi = mIPackageManager.getPackageInfo(packageName, 0, userHandle); 6998 return (pi != null) && (pi.applicationInfo.flags != 0); 6999 } catch (RemoteException re) { 7000 throw new RuntimeException("Package manager has died", re); 7001 } 7002 } 7003 7004 @Override 7005 public boolean isProvisioningAllowed(String action) { 7006 final int callingUserId = mInjector.userHandleGetCallingUserId(); 7007 if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) { 7008 if (!hasFeatureManagedUsers()) { 7009 return false; 7010 } 7011 synchronized (this) { 7012 if (mOwners.hasDeviceOwner()) { 7013 if (!mInjector.userManagerIsSplitSystemUser()) { 7014 // Only split-system-user systems support managed-profiles in combination with 7015 // device-owner. 7016 return false; 7017 } 7018 if (mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM) { 7019 // Only system device-owner supports managed-profiles. Non-system device-owner 7020 // doesn't. 7021 return false; 7022 } 7023 if (callingUserId == UserHandle.USER_SYSTEM) { 7024 // Managed-profiles cannot be setup on the system user, only regular users. 7025 return false; 7026 } 7027 } 7028 } 7029 if (getProfileOwner(callingUserId) != null) { 7030 // Managed user cannot have a managed profile. 7031 return false; 7032 } 7033 final long ident = mInjector.binderClearCallingIdentity(); 7034 try { 7035 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, true)) { 7036 return false; 7037 } 7038 } finally { 7039 mInjector.binderRestoreCallingIdentity(ident); 7040 } 7041 return true; 7042 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) { 7043 return isDeviceOwnerProvisioningAllowed(callingUserId); 7044 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) { 7045 if (!hasFeatureManagedUsers()) { 7046 return false; 7047 } 7048 if (!mInjector.userManagerIsSplitSystemUser()) { 7049 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 7050 return false; 7051 } 7052 if (callingUserId == UserHandle.USER_SYSTEM) { 7053 // System user cannot be a managed user. 7054 return false; 7055 } 7056 if (hasUserSetupCompleted(callingUserId)) { 7057 return false; 7058 } 7059 return true; 7060 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) { 7061 if (!mInjector.userManagerIsSplitSystemUser()) { 7062 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 7063 return false; 7064 } 7065 return isDeviceOwnerProvisioningAllowed(callingUserId); 7066 } 7067 throw new IllegalArgumentException("Unknown provisioning action " + action); 7068 } 7069 7070 private boolean isDeviceOwnerProvisioningAllowed(int callingUserId) { 7071 synchronized (this) { 7072 if (mOwners.hasDeviceOwner()) { 7073 return false; 7074 } 7075 } 7076 if (getProfileOwner(callingUserId) != null) { 7077 return false; 7078 } 7079 if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0) { 7080 return false; 7081 } 7082 if (callingUserId != UserHandle.USER_SYSTEM) { 7083 // Device owner provisioning can only be initiated from system user. 7084 return false; 7085 } 7086 return true; 7087 } 7088 7089 private boolean hasFeatureManagedUsers() { 7090 try { 7091 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS); 7092 } catch (RemoteException e) { 7093 return false; 7094 } 7095 } 7096 7097 @Override 7098 public String getWifiMacAddress() { 7099 // Make sure caller has DO. 7100 synchronized (this) { 7101 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7102 } 7103 7104 final long ident = mInjector.binderClearCallingIdentity(); 7105 try { 7106 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 7107 if (wifiInfo == null) { 7108 return null; 7109 } 7110 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 7111 } finally { 7112 mInjector.binderRestoreCallingIdentity(ident); 7113 } 7114 } 7115 7116 /** 7117 * Returns the target sdk version number that the given packageName was built for 7118 * in the given user. 7119 */ 7120 private int getTargetSdk(String packageName, int userId) throws RemoteException { 7121 final ApplicationInfo ai = mIPackageManager 7122 .getApplicationInfo(packageName, 0, userId); 7123 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 7124 return targetSdkVersion; 7125 } 7126 7127 @Override 7128 public boolean isManagedProfile(ComponentName admin) { 7129 synchronized (this) { 7130 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7131 } 7132 final int callingUserId = mInjector.userHandleGetCallingUserId(); 7133 final UserInfo user; 7134 long ident = mInjector.binderClearCallingIdentity(); 7135 try { 7136 user = mUserManager.getUserInfo(callingUserId); 7137 } finally { 7138 mInjector.binderRestoreCallingIdentity(ident); 7139 } 7140 return user != null && user.isManagedProfile(); 7141 } 7142 7143 @Override 7144 public boolean isSystemOnlyUser(ComponentName admin) { 7145 synchronized (this) { 7146 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7147 } 7148 final int callingUserId = mInjector.userHandleGetCallingUserId(); 7149 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 7150 } 7151 7152 @Override 7153 public void reboot(ComponentName admin) { 7154 Preconditions.checkNotNull(admin); 7155 // Make sure caller has DO. 7156 synchronized (this) { 7157 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7158 } 7159 long ident = mInjector.binderClearCallingIdentity(); 7160 try { 7161 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 7162 } finally { 7163 mInjector.binderRestoreCallingIdentity(ident); 7164 } 7165 } 7166 7167} 7168