DevicePolicyManagerService.java revision 1ce53bc571563d8bf448a81a38da342ed5413ee4
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"; 196 197 private static final int STATUS_BAR_DISABLE_MASK = 198 StatusBarManager.DISABLE_EXPAND | 199 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 200 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 201 StatusBarManager.DISABLE_SEARCH; 202 203 private static final int STATUS_BAR_DISABLE2_MASK = 204 StatusBarManager.DISABLE2_QUICK_SETTINGS; 205 206 private static final Set<String> SECURE_SETTINGS_WHITELIST; 207 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 208 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 209 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 210 static { 211 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 212 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 213 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 214 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 215 216 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 217 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 218 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 219 220 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 221 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 222 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 223 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 224 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 225 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 226 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 227 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 228 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 229 230 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 231 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 232 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 233 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 234 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 235 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 236 } 237 238 // Keyguard features that when set of a profile will affect the profiles 239 // parent user. 240 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 241 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 242 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 243 244 // Keyguard features that are allowed to be set on a managed profile 245 private static final int PROFILE_KEYGUARD_FEATURES = 246 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER 247 | DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 248 249 final Context mContext; 250 final Injector mInjector; 251 final IPackageManager mIPackageManager; 252 final UserManager mUserManager; 253 final UserManagerInternal mUserManagerInternal; 254 255 final LocalService mLocalService; 256 257 // Stores and loads state on device and profile owners. 258 @VisibleForTesting 259 final Owners mOwners; 260 261 private final Binder mToken = new Binder(); 262 263 /** 264 * Whether or not device admin feature is supported. If it isn't return defaults for all 265 * public methods. 266 */ 267 private boolean mHasFeature; 268 269 public static final class Lifecycle extends SystemService { 270 private DevicePolicyManagerService mService; 271 272 public Lifecycle(Context context) { 273 super(context); 274 mService = new DevicePolicyManagerService(context); 275 } 276 277 @Override 278 public void onStart() { 279 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 280 } 281 282 @Override 283 public void onBootPhase(int phase) { 284 mService.systemReady(phase); 285 } 286 287 @Override 288 public void onStartUser(int userHandle) { 289 mService.onStartUser(userHandle); 290 } 291 } 292 293 public static class DevicePolicyData { 294 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 295 int mActivePasswordLength = 0; 296 int mActivePasswordUpperCase = 0; 297 int mActivePasswordLowerCase = 0; 298 int mActivePasswordLetters = 0; 299 int mActivePasswordNumeric = 0; 300 int mActivePasswordSymbols = 0; 301 int mActivePasswordNonLetter = 0; 302 int mFailedPasswordAttempts = 0; 303 304 int mUserHandle; 305 int mPasswordOwner = -1; 306 long mLastMaximumTimeToLock = -1; 307 boolean mUserSetupComplete = false; 308 int mPermissionPolicy; 309 310 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 311 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 312 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 313 314 // This is the list of component allowed to start lock task mode. 315 List<String> mLockTaskPackages = new ArrayList<>(); 316 317 boolean mStatusBarDisabled = false; 318 319 ComponentName mRestrictionsProvider; 320 321 String mDelegatedCertInstallerPackage; 322 323 boolean doNotAskCredentialsOnBoot = false; 324 325 public DevicePolicyData(int userHandle) { 326 mUserHandle = userHandle; 327 } 328 } 329 330 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 331 332 final Handler mHandler; 333 334 BroadcastReceiver mReceiver = new BroadcastReceiver() { 335 @Override 336 public void onReceive(Context context, Intent intent) { 337 final String action = intent.getAction(); 338 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 339 getSendingUserId()); 340 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 341 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 342 if (VERBOSE_LOG) { 343 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 344 + action + " for user " + userHandle); 345 } 346 mHandler.post(new Runnable() { 347 @Override 348 public void run() { 349 handlePasswordExpirationNotification(userHandle); 350 } 351 }); 352 } 353 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 354 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 355 new MonitoringCertNotificationTask().execute(intent); 356 } 357 if (Intent.ACTION_USER_REMOVED.equals(action)) { 358 removeUserData(userHandle); 359 } else if (Intent.ACTION_USER_STARTED.equals(action) 360 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 361 362 if (Intent.ACTION_USER_STARTED.equals(action)) { 363 // Reset the policy data 364 synchronized (DevicePolicyManagerService.this) { 365 mUserData.remove(userHandle); 366 } 367 } 368 handlePackagesChanged(null /* check all admins */, userHandle); 369 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 370 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 371 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 372 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 373 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 374 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 375 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 376 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 377 clearWipeProfileNotification(); 378 } 379 } 380 }; 381 382 static class ActiveAdmin { 383 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 384 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 385 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 386 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 387 = "disable-bt-contacts-sharing"; 388 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 389 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 390 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 391 private static final String TAG_ACCOUNT_TYPE = "account-type"; 392 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 393 = "permitted-accessiblity-services"; 394 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 395 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 396 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 397 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 398 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 399 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 400 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 401 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 402 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 403 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 404 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 405 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 406 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 407 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 408 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 409 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 410 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 411 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 412 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 413 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 414 private static final String ATTR_VALUE = "value"; 415 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 416 private static final String TAG_POLICIES = "policies"; 417 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 418 "cross-profile-widget-providers"; 419 private static final String TAG_PROVIDER = "provider"; 420 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 421 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 422 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 423 424 final DeviceAdminInfo info; 425 426 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 427 428 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 429 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 430 431 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 432 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 433 434 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 435 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 436 437 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 438 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 439 440 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 441 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 442 443 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 444 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 445 446 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 447 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 448 449 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 450 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 451 452 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 453 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 454 455 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 456 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 457 458 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 459 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 460 461 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 462 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 463 464 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 465 466 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 467 468 boolean encryptionRequested = false; 469 boolean disableCamera = false; 470 boolean disableCallerId = false; 471 boolean disableBluetoothContactSharing = true; 472 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 473 boolean requireAutoTime = false; // Can only be set by a device owner. 474 475 static class TrustAgentInfo { 476 public PersistableBundle options; 477 TrustAgentInfo(PersistableBundle bundle) { 478 options = bundle; 479 } 480 } 481 482 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 483 484 // The list of permitted accessibility services package namesas set by a profile 485 // or device owner. Null means all accessibility services are allowed, empty means 486 // none except system services are allowed. 487 List<String> permittedAccessiblityServices; 488 489 // The list of permitted input methods package names as set by a profile or device owner. 490 // Null means all input methods are allowed, empty means none except system imes are 491 // allowed. 492 List<String> permittedInputMethods; 493 494 // List of package names to keep cached. 495 List<String> keepUninstalledPackages; 496 497 // TODO: review implementation decisions with frameworks team 498 boolean specifiesGlobalProxy = false; 499 String globalProxySpec = null; 500 String globalProxyExclusionList = null; 501 502 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 503 504 List<String> crossProfileWidgetProviders; 505 506 Bundle userRestrictions; 507 508 ActiveAdmin(DeviceAdminInfo _info) { 509 info = _info; 510 } 511 512 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 513 514 public UserHandle getUserHandle() { 515 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 516 } 517 518 void writeToXml(XmlSerializer out) 519 throws IllegalArgumentException, IllegalStateException, IOException { 520 out.startTag(null, TAG_POLICIES); 521 info.writePoliciesToXml(out); 522 out.endTag(null, TAG_POLICIES); 523 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 524 out.startTag(null, TAG_PASSWORD_QUALITY); 525 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 526 out.endTag(null, TAG_PASSWORD_QUALITY); 527 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 528 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 529 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 530 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 531 } 532 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 533 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 534 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 535 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 536 } 537 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 538 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 539 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 540 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 541 } 542 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 543 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 544 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 545 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 546 } 547 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 548 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 549 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 550 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 551 } 552 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 553 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 554 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 555 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 556 } 557 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 558 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 559 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 560 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 561 } 562 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 563 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 564 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 565 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 566 } 567 } 568 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 569 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 570 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 571 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 572 } 573 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 574 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 575 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 576 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 577 } 578 if (specifiesGlobalProxy) { 579 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 580 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 581 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 582 if (globalProxySpec != null) { 583 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 584 out.attribute(null, ATTR_VALUE, globalProxySpec); 585 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 586 } 587 if (globalProxyExclusionList != null) { 588 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 589 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 590 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 591 } 592 } 593 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 594 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 595 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 596 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 597 } 598 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 599 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 600 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 601 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 602 } 603 if (encryptionRequested) { 604 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 605 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 606 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 607 } 608 if (disableCamera) { 609 out.startTag(null, TAG_DISABLE_CAMERA); 610 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 611 out.endTag(null, TAG_DISABLE_CAMERA); 612 } 613 if (disableCallerId) { 614 out.startTag(null, TAG_DISABLE_CALLER_ID); 615 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 616 out.endTag(null, TAG_DISABLE_CALLER_ID); 617 } 618 if (disableBluetoothContactSharing) { 619 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 620 out.attribute(null, ATTR_VALUE, 621 Boolean.toString(disableBluetoothContactSharing)); 622 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 623 } 624 if (disableScreenCapture) { 625 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 626 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 627 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 628 } 629 if (requireAutoTime) { 630 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 631 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 632 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 633 } 634 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 635 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 636 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 637 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 638 } 639 if (!accountTypesWithManagementDisabled.isEmpty()) { 640 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 641 for (String ac : accountTypesWithManagementDisabled) { 642 out.startTag(null, TAG_ACCOUNT_TYPE); 643 out.attribute(null, ATTR_VALUE, ac); 644 out.endTag(null, TAG_ACCOUNT_TYPE); 645 } 646 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 647 } 648 if (!trustAgentInfos.isEmpty()) { 649 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 650 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 651 for (Entry<String, TrustAgentInfo> entry : set) { 652 TrustAgentInfo trustAgentInfo = entry.getValue(); 653 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 654 out.attribute(null, ATTR_VALUE, entry.getKey()); 655 if (trustAgentInfo.options != null) { 656 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 657 try { 658 trustAgentInfo.options.saveToXml(out); 659 } catch (XmlPullParserException e) { 660 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 661 } 662 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 663 } 664 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 665 } 666 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 667 } 668 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 669 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 670 final int providerCount = crossProfileWidgetProviders.size(); 671 for (int i = 0; i < providerCount; i++) { 672 String provider = crossProfileWidgetProviders.get(i); 673 out.startTag(null, TAG_PROVIDER); 674 out.attribute(null, ATTR_VALUE, provider); 675 out.endTag(null, TAG_PROVIDER); 676 } 677 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 678 } 679 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 680 permittedAccessiblityServices); 681 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 682 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 683 if (hasUserRestrictions()) { 684 UserRestrictionsUtils.writeRestrictions( 685 out, userRestrictions, TAG_USER_RESTRICTIONS); 686 } 687 } 688 689 void writePackageListToXml(XmlSerializer out, String outerTag, 690 List<String> packageList) 691 throws IllegalArgumentException, IllegalStateException, IOException { 692 if (packageList == null) { 693 return; 694 } 695 696 out.startTag(null, outerTag); 697 for (String packageName : packageList) { 698 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 699 out.attribute(null, ATTR_VALUE, packageName); 700 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 701 } 702 out.endTag(null, outerTag); 703 } 704 705 void readFromXml(XmlPullParser parser) 706 throws XmlPullParserException, IOException { 707 int outerDepth = parser.getDepth(); 708 int type; 709 while ((type=parser.next()) != END_DOCUMENT 710 && (type != END_TAG || parser.getDepth() > outerDepth)) { 711 if (type == END_TAG || type == TEXT) { 712 continue; 713 } 714 String tag = parser.getName(); 715 if (TAG_POLICIES.equals(tag)) { 716 info.readPoliciesFromXml(parser); 717 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 718 passwordQuality = Integer.parseInt( 719 parser.getAttributeValue(null, ATTR_VALUE)); 720 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 721 minimumPasswordLength = Integer.parseInt( 722 parser.getAttributeValue(null, ATTR_VALUE)); 723 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 724 passwordHistoryLength = Integer.parseInt( 725 parser.getAttributeValue(null, ATTR_VALUE)); 726 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 727 minimumPasswordUpperCase = Integer.parseInt( 728 parser.getAttributeValue(null, ATTR_VALUE)); 729 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 730 minimumPasswordLowerCase = Integer.parseInt( 731 parser.getAttributeValue(null, ATTR_VALUE)); 732 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 733 minimumPasswordLetters = Integer.parseInt( 734 parser.getAttributeValue(null, ATTR_VALUE)); 735 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 736 minimumPasswordNumeric = Integer.parseInt( 737 parser.getAttributeValue(null, ATTR_VALUE)); 738 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 739 minimumPasswordSymbols = Integer.parseInt( 740 parser.getAttributeValue(null, ATTR_VALUE)); 741 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 742 minimumPasswordNonLetter = Integer.parseInt( 743 parser.getAttributeValue(null, ATTR_VALUE)); 744 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 745 maximumTimeToUnlock = Long.parseLong( 746 parser.getAttributeValue(null, ATTR_VALUE)); 747 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 748 maximumFailedPasswordsForWipe = Integer.parseInt( 749 parser.getAttributeValue(null, ATTR_VALUE)); 750 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 751 specifiesGlobalProxy = Boolean.parseBoolean( 752 parser.getAttributeValue(null, ATTR_VALUE)); 753 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 754 globalProxySpec = 755 parser.getAttributeValue(null, ATTR_VALUE); 756 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 757 globalProxyExclusionList = 758 parser.getAttributeValue(null, ATTR_VALUE); 759 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 760 passwordExpirationTimeout = Long.parseLong( 761 parser.getAttributeValue(null, ATTR_VALUE)); 762 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 763 passwordExpirationDate = Long.parseLong( 764 parser.getAttributeValue(null, ATTR_VALUE)); 765 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 766 encryptionRequested = Boolean.parseBoolean( 767 parser.getAttributeValue(null, ATTR_VALUE)); 768 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 769 disableCamera = Boolean.parseBoolean( 770 parser.getAttributeValue(null, ATTR_VALUE)); 771 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 772 disableCallerId = Boolean.parseBoolean( 773 parser.getAttributeValue(null, ATTR_VALUE)); 774 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 775 disableBluetoothContactSharing = Boolean.parseBoolean(parser 776 .getAttributeValue(null, ATTR_VALUE)); 777 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 778 disableScreenCapture = Boolean.parseBoolean( 779 parser.getAttributeValue(null, ATTR_VALUE)); 780 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 781 requireAutoTime= Boolean.parseBoolean( 782 parser.getAttributeValue(null, ATTR_VALUE)); 783 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 784 disabledKeyguardFeatures = Integer.parseInt( 785 parser.getAttributeValue(null, ATTR_VALUE)); 786 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 787 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 788 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 789 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 790 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 791 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 792 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 793 permittedAccessiblityServices = readPackageList(parser, tag); 794 } else if (TAG_PERMITTED_IMES.equals(tag)) { 795 permittedInputMethods = readPackageList(parser, tag); 796 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 797 keepUninstalledPackages = readPackageList(parser, tag); 798 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 799 UserRestrictionsUtils.readRestrictions(parser, ensureUserRestrictions()); 800 } else { 801 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 802 XmlUtils.skipCurrentTag(parser); 803 } 804 } 805 } 806 807 private List<String> readPackageList(XmlPullParser parser, 808 String tag) throws XmlPullParserException, IOException { 809 List<String> result = new ArrayList<String>(); 810 int outerDepth = parser.getDepth(); 811 int outerType; 812 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 813 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 814 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 815 continue; 816 } 817 String outerTag = parser.getName(); 818 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 819 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 820 if (packageName != null) { 821 result.add(packageName); 822 } else { 823 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 824 } 825 } else { 826 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 827 } 828 } 829 return result; 830 } 831 832 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 833 throws XmlPullParserException, IOException { 834 int outerDepthDAM = parser.getDepth(); 835 int typeDAM; 836 Set<String> result = new ArraySet<>(); 837 while ((typeDAM=parser.next()) != END_DOCUMENT 838 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 839 if (typeDAM == END_TAG || typeDAM == TEXT) { 840 continue; 841 } 842 String tagDAM = parser.getName(); 843 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 844 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 845 } else { 846 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 847 } 848 } 849 return result; 850 } 851 852 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 853 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 854 int outerDepthDAM = parser.getDepth(); 855 int typeDAM; 856 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 857 while ((typeDAM=parser.next()) != END_DOCUMENT 858 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 859 if (typeDAM == END_TAG || typeDAM == TEXT) { 860 continue; 861 } 862 String tagDAM = parser.getName(); 863 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 864 final String component = parser.getAttributeValue(null, ATTR_VALUE); 865 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 866 result.put(component, trustAgentInfo); 867 } else { 868 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 869 } 870 } 871 return result; 872 } 873 874 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 875 throws XmlPullParserException, IOException { 876 int outerDepthDAM = parser.getDepth(); 877 int typeDAM; 878 TrustAgentInfo result = new TrustAgentInfo(null); 879 while ((typeDAM=parser.next()) != END_DOCUMENT 880 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 881 if (typeDAM == END_TAG || typeDAM == TEXT) { 882 continue; 883 } 884 String tagDAM = parser.getName(); 885 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 886 PersistableBundle bundle = new PersistableBundle(); 887 bundle.restoreFromXml(parser); 888 result.options = bundle; 889 } else { 890 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 891 } 892 } 893 return result; 894 } 895 896 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 897 throws XmlPullParserException, IOException { 898 int outerDepthDAM = parser.getDepth(); 899 int typeDAM; 900 ArrayList<String> result = null; 901 while ((typeDAM=parser.next()) != END_DOCUMENT 902 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 903 if (typeDAM == END_TAG || typeDAM == TEXT) { 904 continue; 905 } 906 String tagDAM = parser.getName(); 907 if (TAG_PROVIDER.equals(tagDAM)) { 908 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 909 if (result == null) { 910 result = new ArrayList<>(); 911 } 912 result.add(provider); 913 } else { 914 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 915 } 916 } 917 return result; 918 } 919 920 boolean hasUserRestrictions() { 921 return userRestrictions != null && userRestrictions.size() > 0; 922 } 923 924 Bundle ensureUserRestrictions() { 925 if (userRestrictions == null) { 926 userRestrictions = new Bundle(); 927 } 928 return userRestrictions; 929 } 930 931 void dump(String prefix, PrintWriter pw) { 932 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 933 pw.print(prefix); pw.println("policies:"); 934 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 935 if (pols != null) { 936 for (int i=0; i<pols.size(); i++) { 937 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 938 } 939 } 940 pw.print(prefix); pw.print("passwordQuality=0x"); 941 pw.println(Integer.toHexString(passwordQuality)); 942 pw.print(prefix); pw.print("minimumPasswordLength="); 943 pw.println(minimumPasswordLength); 944 pw.print(prefix); pw.print("passwordHistoryLength="); 945 pw.println(passwordHistoryLength); 946 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 947 pw.println(minimumPasswordUpperCase); 948 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 949 pw.println(minimumPasswordLowerCase); 950 pw.print(prefix); pw.print("minimumPasswordLetters="); 951 pw.println(minimumPasswordLetters); 952 pw.print(prefix); pw.print("minimumPasswordNumeric="); 953 pw.println(minimumPasswordNumeric); 954 pw.print(prefix); pw.print("minimumPasswordSymbols="); 955 pw.println(minimumPasswordSymbols); 956 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 957 pw.println(minimumPasswordNonLetter); 958 pw.print(prefix); pw.print("maximumTimeToUnlock="); 959 pw.println(maximumTimeToUnlock); 960 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 961 pw.println(maximumFailedPasswordsForWipe); 962 pw.print(prefix); pw.print("specifiesGlobalProxy="); 963 pw.println(specifiesGlobalProxy); 964 pw.print(prefix); pw.print("passwordExpirationTimeout="); 965 pw.println(passwordExpirationTimeout); 966 pw.print(prefix); pw.print("passwordExpirationDate="); 967 pw.println(passwordExpirationDate); 968 if (globalProxySpec != null) { 969 pw.print(prefix); pw.print("globalProxySpec="); 970 pw.println(globalProxySpec); 971 } 972 if (globalProxyExclusionList != null) { 973 pw.print(prefix); pw.print("globalProxyEclusionList="); 974 pw.println(globalProxyExclusionList); 975 } 976 pw.print(prefix); pw.print("encryptionRequested="); 977 pw.println(encryptionRequested); 978 pw.print(prefix); pw.print("disableCamera="); 979 pw.println(disableCamera); 980 pw.print(prefix); pw.print("disableCallerId="); 981 pw.println(disableCallerId); 982 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 983 pw.println(disableBluetoothContactSharing); 984 pw.print(prefix); pw.print("disableScreenCapture="); 985 pw.println(disableScreenCapture); 986 pw.print(prefix); pw.print("requireAutoTime="); 987 pw.println(requireAutoTime); 988 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 989 pw.println(disabledKeyguardFeatures); 990 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 991 pw.println(crossProfileWidgetProviders); 992 if (permittedAccessiblityServices != null) { 993 pw.print(prefix); pw.print("permittedAccessibilityServices="); 994 pw.println(permittedAccessiblityServices); 995 } 996 if (permittedInputMethods != null) { 997 pw.print(prefix); pw.print("permittedInputMethods="); 998 pw.println(permittedInputMethods); 999 } 1000 if (keepUninstalledPackages != null) { 1001 pw.print(prefix); pw.print("keepUninstalledPackages="); 1002 pw.println(keepUninstalledPackages); 1003 } 1004 pw.print(prefix); pw.println("userRestrictions:"); 1005 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1006 } 1007 } 1008 1009 private void handlePackagesChanged(String packageName, int userHandle) { 1010 boolean removed = false; 1011 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1012 DevicePolicyData policy = getUserData(userHandle); 1013 synchronized (this) { 1014 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1015 ActiveAdmin aa = policy.mAdminList.get(i); 1016 try { 1017 // If we're checking all packages or if the specific one we're checking matches, 1018 // then check if the package and receiver still exist. 1019 final String adminPackage = aa.info.getPackageName(); 1020 if (packageName == null || packageName.equals(adminPackage)) { 1021 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1022 || mIPackageManager.getReceiverInfo( 1023 aa.info.getComponent(), 0, userHandle) == null) { 1024 removed = true; 1025 policy.mAdminList.remove(i); 1026 policy.mAdminMap.remove(aa.info.getComponent()); 1027 } 1028 } 1029 } catch (RemoteException re) { 1030 // Shouldn't happen 1031 } 1032 } 1033 if (removed) { 1034 validatePasswordOwnerLocked(policy); 1035 saveSettingsLocked(policy.mUserHandle); 1036 } 1037 1038 if (policy.mDelegatedCertInstallerPackage != null && 1039 (packageName == null 1040 || packageName.equals(policy.mDelegatedCertInstallerPackage))) { 1041 try { 1042 // Check if delegated cert installer package is removed. 1043 if (mIPackageManager.getPackageInfo( 1044 policy.mDelegatedCertInstallerPackage, 0, userHandle) == null) { 1045 policy.mDelegatedCertInstallerPackage = null; 1046 saveSettingsLocked(policy.mUserHandle); 1047 } 1048 } catch (RemoteException e) { 1049 // Shouldn't happen 1050 } 1051 } 1052 } 1053 if (removed) { 1054 // The removed admin might have disabled camera, so update user restrictions. 1055 pushUserRestrictions(userHandle); 1056 } 1057 } 1058 1059 /** 1060 * Unit test will subclass it to inject mocks. 1061 */ 1062 @VisibleForTesting 1063 static class Injector { 1064 1065 private final Context mContext; 1066 1067 Injector(Context context) { 1068 mContext = context; 1069 } 1070 1071 Owners newOwners() { 1072 return new Owners(mContext, getUserManager(), getUserManagerInternal()); 1073 } 1074 1075 UserManager getUserManager() { 1076 return UserManager.get(mContext); 1077 } 1078 1079 UserManagerInternal getUserManagerInternal() { 1080 return LocalServices.getService(UserManagerInternal.class); 1081 } 1082 1083 PackageManagerInternal getPackageManagerInternal() { 1084 return LocalServices.getService(PackageManagerInternal.class); 1085 } 1086 1087 NotificationManager getNotificationManager() { 1088 return mContext.getSystemService(NotificationManager.class); 1089 } 1090 1091 PowerManagerInternal getPowerManagerInternal() { 1092 return LocalServices.getService(PowerManagerInternal.class); 1093 } 1094 1095 IWindowManager getIWindowManager() { 1096 return IWindowManager.Stub 1097 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1098 } 1099 1100 IActivityManager getIActivityManager() { 1101 return ActivityManagerNative.getDefault(); 1102 } 1103 1104 IPackageManager getIPackageManager() { 1105 return AppGlobals.getPackageManager(); 1106 } 1107 1108 IBackupManager getIBackupManager() { 1109 return IBackupManager.Stub.asInterface( 1110 ServiceManager.getService(Context.BACKUP_SERVICE)); 1111 } 1112 1113 IAudioService getIAudioService() { 1114 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1115 } 1116 1117 LockPatternUtils newLockPatternUtils() { 1118 return new LockPatternUtils(mContext); 1119 } 1120 1121 Looper getMyLooper() { 1122 return Looper.myLooper(); 1123 } 1124 1125 WifiManager getWifiManager() { 1126 return mContext.getSystemService(WifiManager.class); 1127 } 1128 1129 long binderClearCallingIdentity() { 1130 return Binder.clearCallingIdentity(); 1131 } 1132 1133 void binderRestoreCallingIdentity(long token) { 1134 Binder.restoreCallingIdentity(token); 1135 } 1136 1137 int binderGetCallingUid() { 1138 return Binder.getCallingUid(); 1139 } 1140 1141 int binderGetCallingPid() { 1142 return Binder.getCallingPid(); 1143 } 1144 1145 UserHandle binderGetCallingUserHandle() { 1146 return Binder.getCallingUserHandle(); 1147 } 1148 1149 boolean binderIsCallingUidMyUid() { 1150 return getCallingUid() == Process.myUid(); 1151 } 1152 1153 final int userHandleGetCallingUserId() { 1154 return UserHandle.getUserId(binderGetCallingUid()); 1155 } 1156 1157 File environmentGetUserSystemDirectory(int userId) { 1158 return Environment.getUserSystemDirectory(userId); 1159 } 1160 1161 void powerManagerGoToSleep(long time, int reason, int flags) { 1162 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1163 } 1164 1165 void powerManagerReboot(String reason) { 1166 mContext.getSystemService(PowerManager.class).reboot(reason); 1167 } 1168 1169 boolean systemPropertiesGetBoolean(String key, boolean def) { 1170 return SystemProperties.getBoolean(key, def); 1171 } 1172 1173 long systemPropertiesGetLong(String key, long def) { 1174 return SystemProperties.getLong(key, def); 1175 } 1176 1177 String systemPropertiesGet(String key, String def) { 1178 return SystemProperties.get(key, def); 1179 } 1180 1181 String systemPropertiesGet(String key) { 1182 return SystemProperties.get(key); 1183 } 1184 1185 void systemPropertiesSet(String key, String value) { 1186 SystemProperties.set(key, value); 1187 } 1188 1189 boolean userManagerIsSplitSystemUser() { 1190 return UserManager.isSplitSystemUser(); 1191 } 1192 1193 String getDevicePolicyFilePathForSystemUser() { 1194 return "/data/system/"; 1195 } 1196 1197 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1198 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1199 name, def, userHandle); 1200 } 1201 1202 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1203 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1204 name, value, userHandle); 1205 } 1206 1207 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1208 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1209 name, value, userHandle); 1210 } 1211 1212 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1213 Settings.Global.putStringForUser(mContext.getContentResolver(), 1214 name, value, userHandle); 1215 } 1216 1217 void settingsSecurePutInt(String name, int value) { 1218 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1219 } 1220 1221 int settingsGlobalGetInt(String name, int def) { 1222 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1223 } 1224 1225 void settingsGlobalPutInt(String name, int value) { 1226 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1227 } 1228 1229 void settingsSecurePutString(String name, String value) { 1230 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1231 } 1232 1233 void settingsGlobalPutString(String name, String value) { 1234 Settings.Global.putString(mContext.getContentResolver(), name, value); 1235 } 1236 } 1237 1238 /** 1239 * Instantiates the service. 1240 */ 1241 public DevicePolicyManagerService(Context context) { 1242 this(new Injector(context)); 1243 } 1244 1245 @VisibleForTesting 1246 DevicePolicyManagerService(Injector injector) { 1247 mInjector = injector; 1248 mContext = Preconditions.checkNotNull(injector.mContext); 1249 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1250 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1251 1252 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1253 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1254 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1255 1256 mLocalService = new LocalService(); 1257 1258 mHasFeature = mContext.getPackageManager() 1259 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1260 if (!mHasFeature) { 1261 // Skip the rest of the initialization 1262 return; 1263 } 1264 IntentFilter filter = new IntentFilter(); 1265 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1266 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1267 filter.addAction(Intent.ACTION_USER_REMOVED); 1268 filter.addAction(Intent.ACTION_USER_STARTED); 1269 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1270 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1271 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1272 filter = new IntentFilter(); 1273 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1274 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1275 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1276 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1277 filter.addDataScheme("package"); 1278 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1279 filter = new IntentFilter(); 1280 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1281 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1282 1283 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1284 } 1285 1286 /** 1287 * Creates and loads the policy data from xml. 1288 * @param userHandle the user for whom to load the policy data 1289 * @return 1290 */ 1291 @NonNull 1292 DevicePolicyData getUserData(int userHandle) { 1293 synchronized (this) { 1294 DevicePolicyData policy = mUserData.get(userHandle); 1295 if (policy == null) { 1296 policy = new DevicePolicyData(userHandle); 1297 mUserData.append(userHandle, policy); 1298 loadSettingsLocked(policy, userHandle); 1299 } 1300 return policy; 1301 } 1302 } 1303 1304 /** 1305 * Creates and loads the policy data from xml for data that is shared between 1306 * various profiles of a user. In contrast to {@link #getUserData(int)} 1307 * it allows access to data of users other than the calling user. 1308 * 1309 * This function should only be used for shared data, e.g. everything regarding 1310 * passwords and should be removed once multiple screen locks are present. 1311 * @param userHandle the user for whom to load the policy data 1312 * @return 1313 */ 1314 DevicePolicyData getUserDataUnchecked(int userHandle) { 1315 long ident = mInjector.binderClearCallingIdentity(); 1316 try { 1317 return getUserData(userHandle); 1318 } finally { 1319 mInjector.binderRestoreCallingIdentity(ident); 1320 } 1321 } 1322 1323 void removeUserData(int userHandle) { 1324 synchronized (this) { 1325 if (userHandle == UserHandle.USER_SYSTEM) { 1326 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1327 return; 1328 } 1329 mOwners.removeProfileOwner(userHandle); 1330 mOwners.writeProfileOwner(userHandle); 1331 1332 DevicePolicyData policy = mUserData.get(userHandle); 1333 if (policy != null) { 1334 mUserData.remove(userHandle); 1335 } 1336 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1337 DEVICE_POLICIES_XML); 1338 policyFile.delete(); 1339 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1340 } 1341 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1342 } 1343 1344 void loadOwners() { 1345 synchronized (this) { 1346 mOwners.load(); 1347 findOwnerComponentIfNecessaryLocked(); 1348 migrateUserRestrictionsIfNecessaryLocked(); 1349 1350 // TODO PO may not have a class name either due to b/17652534. Address that too. 1351 1352 updateDeviceOwnerLocked(); 1353 } 1354 } 1355 1356 private void findOwnerComponentIfNecessaryLocked() { 1357 if (!mOwners.hasDeviceOwner()) { 1358 return; 1359 } 1360 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1361 1362 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1363 return; // Already a full component name. 1364 } 1365 1366 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1367 doComponentName.getPackageName(), 1368 mOwners.getDeviceOwnerUserId()); 1369 if (doComponent == null) { 1370 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1371 } else { 1372 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1373 doComponent, 1374 mOwners.getDeviceOwnerName(), 1375 mOwners.getDeviceOwnerUserId(), 1376 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1377 mOwners.writeDeviceOwner(); 1378 if (VERBOSE_LOG) { 1379 Log.v(LOG_TAG, "Device owner component filled in"); 1380 } 1381 } 1382 } 1383 1384 /** 1385 * We didn't use to persist user restrictions for each owners but only persisted in user 1386 * manager. 1387 */ 1388 private void migrateUserRestrictionsIfNecessaryLocked() { 1389 boolean migrated = false; 1390 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1391 // except for the "system controlled" ones. 1392 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1393 if (VERBOSE_LOG) { 1394 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1395 } 1396 migrated = true; 1397 1398 // Migrate user 0 restrictions to DO. 1399 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1400 1401 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1402 /* exceptionList =*/ null); 1403 1404 // Push DO user restrictions to user manager. 1405 pushUserRestrictions(UserHandle.USER_SYSTEM); 1406 1407 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1408 } 1409 1410 // Migrate for POs. We have a few more exceptions. 1411 final Set<String> normalExceptionList = Sets.newArraySet( 1412 UserManager.DISALLOW_OUTGOING_CALLS, 1413 UserManager.DISALLOW_SMS); 1414 1415 final Set<String> managedExceptionList = new ArraySet<>(normalExceptionList.size() + 1); 1416 managedExceptionList.addAll(normalExceptionList); 1417 managedExceptionList.add(UserManager.DISALLOW_WALLPAPER); 1418 1419 for (UserInfo ui : mUserManager.getUsers()) { 1420 final int userId = ui.id; 1421 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1422 if (userId != UserHandle.USER_SYSTEM) { 1423 if (VERBOSE_LOG) { 1424 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1425 } 1426 migrated = true; 1427 1428 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1429 1430 final Set<String> exceptionList = 1431 ui.isManagedProfile() ? managedExceptionList : normalExceptionList; 1432 1433 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1434 exceptionList); 1435 1436 // Note if a secondary user has no PO but has a DA that disables camera, we 1437 // don't get here and won't push the camera user restriction to UserManager 1438 // here. That's okay because we'll push user restrictions anyway when a user 1439 // starts. But we still do it because we want to let user manager persist 1440 // upon migration. 1441 pushUserRestrictions(userId); 1442 } 1443 1444 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1445 } 1446 } 1447 if (VERBOSE_LOG && migrated) { 1448 Log.v(LOG_TAG, "User restrictions migrated."); 1449 } 1450 } 1451 1452 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1453 Set<String> exceptionList) { 1454 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1455 user.getIdentifier()); 1456 1457 final Bundle newBaseRestrictions = new Bundle(); 1458 final Bundle newOwnerRestrictions = new Bundle(); 1459 1460 for (String key : origRestrictions.keySet()) { 1461 if (!origRestrictions.getBoolean(key)) { 1462 continue; 1463 } 1464 if (exceptionList!= null && exceptionList.contains(key)) { 1465 newBaseRestrictions.putBoolean(key, true); 1466 } else { 1467 newOwnerRestrictions.putBoolean(key, true); 1468 } 1469 } 1470 1471 if (VERBOSE_LOG) { 1472 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1473 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 1474 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1475 } 1476 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1477 newBaseRestrictions); 1478 1479 if (admin != null) { 1480 admin.ensureUserRestrictions().clear(); 1481 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1482 } else { 1483 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1484 } 1485 saveSettingsLocked(user.getIdentifier()); 1486 } 1487 1488 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1489 final DevicePolicyData policy = getUserData(userId); 1490 final int n = policy.mAdminList.size(); 1491 ComponentName found = null; 1492 int nFound = 0; 1493 for (int i = 0; i < n; i++) { 1494 final ActiveAdmin admin = policy.mAdminList.get(i); 1495 if (packageName.equals(admin.info.getPackageName())) { 1496 // Found! 1497 if (nFound == 0) { 1498 found = admin.info.getComponent(); 1499 } 1500 nFound++; 1501 } 1502 } 1503 if (nFound > 1) { 1504 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1505 } 1506 return found; 1507 } 1508 1509 /** 1510 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1511 * reminders. Clears alarm if no expirations are configured. 1512 */ 1513 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1514 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1515 final long now = System.currentTimeMillis(); 1516 final long timeToExpire = expiration - now; 1517 final long alarmTime; 1518 if (expiration == 0) { 1519 // No expirations are currently configured: Cancel alarm. 1520 alarmTime = 0; 1521 } else if (timeToExpire <= 0) { 1522 // The password has already expired: Repeat every 24 hours. 1523 alarmTime = now + MS_PER_DAY; 1524 } else { 1525 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1526 // the expiration time. 1527 long alarmInterval = timeToExpire % MS_PER_DAY; 1528 if (alarmInterval == 0) { 1529 alarmInterval = MS_PER_DAY; 1530 } 1531 alarmTime = now + alarmInterval; 1532 } 1533 1534 long token = mInjector.binderClearCallingIdentity(); 1535 try { 1536 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1537 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1538 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1539 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1540 new UserHandle(policy.mUserHandle)); 1541 am.cancel(pi); 1542 if (alarmTime != 0) { 1543 am.set(AlarmManager.RTC, alarmTime, pi); 1544 } 1545 } finally { 1546 mInjector.binderRestoreCallingIdentity(token); 1547 } 1548 } 1549 1550 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1551 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1552 if (admin != null 1553 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1554 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1555 return admin; 1556 } 1557 return null; 1558 } 1559 1560 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1561 throws SecurityException { 1562 final int callingUid = mInjector.binderGetCallingUid(); 1563 1564 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1565 if (result != null) { 1566 return result; 1567 } 1568 1569 if (who != null) { 1570 final int userId = UserHandle.getUserId(callingUid); 1571 final DevicePolicyData policy = getUserData(userId); 1572 ActiveAdmin admin = policy.mAdminMap.get(who); 1573 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1574 throw new SecurityException("Admin " + admin.info.getComponent() 1575 + " does not own the device"); 1576 } 1577 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1578 throw new SecurityException("Admin " + admin.info.getComponent() 1579 + " does not own the profile"); 1580 } 1581 throw new SecurityException("Admin " + admin.info.getComponent() 1582 + " did not specify uses-policy for: " 1583 + admin.info.getTagForPolicy(reqPolicy)); 1584 } else { 1585 throw new SecurityException("No active admin owned by uid " 1586 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 1587 } 1588 } 1589 1590 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1591 int uid) { 1592 // Try to find an admin which can use reqPolicy 1593 final int userId = UserHandle.getUserId(uid); 1594 final DevicePolicyData policy = getUserData(userId); 1595 if (who != null) { 1596 ActiveAdmin admin = policy.mAdminMap.get(who); 1597 if (admin == null) { 1598 throw new SecurityException("No active admin " + who); 1599 } 1600 if (admin.getUid() != uid) { 1601 throw new SecurityException("Admin " + who + " is not owned by uid " 1602 + mInjector.binderGetCallingUid()); 1603 } 1604 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 1605 return admin; 1606 } 1607 } else { 1608 for (ActiveAdmin admin : policy.mAdminList) { 1609 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 1610 userId)) { 1611 return admin; 1612 } 1613 } 1614 } 1615 1616 return null; 1617 } 1618 1619 @VisibleForTesting 1620 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 1621 int userId) { 1622 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 1623 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 1624 1625 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1626 return ownsDevice; 1627 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1628 // DO always has the PO power. 1629 return ownsDevice || ownsProfile; 1630 } else { 1631 return admin.info.usesPolicy(reqPolicy); 1632 } 1633 } 1634 1635 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1636 sendAdminCommandLocked(admin, action, null); 1637 } 1638 1639 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1640 sendAdminCommandLocked(admin, action, null, result); 1641 } 1642 1643 /** 1644 * Send an update to one specific admin, get notified when that admin returns a result. 1645 */ 1646 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1647 BroadcastReceiver result) { 1648 Intent intent = new Intent(action); 1649 intent.setComponent(admin.info.getComponent()); 1650 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1651 intent.putExtra("expiration", admin.passwordExpirationDate); 1652 } 1653 if (adminExtras != null) { 1654 intent.putExtras(adminExtras); 1655 } 1656 if (result != null) { 1657 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1658 null, result, mHandler, Activity.RESULT_OK, null, null); 1659 } else { 1660 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1661 } 1662 } 1663 1664 /** 1665 * Send an update to all admins of a user that enforce a specified policy. 1666 */ 1667 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1668 final DevicePolicyData policy = getUserData(userHandle); 1669 final int count = policy.mAdminList.size(); 1670 if (count > 0) { 1671 for (int i = 0; i < count; i++) { 1672 final ActiveAdmin admin = policy.mAdminList.get(i); 1673 if (admin.info.usesPolicy(reqPolicy)) { 1674 sendAdminCommandLocked(admin, action); 1675 } 1676 } 1677 } 1678 } 1679 1680 /** 1681 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1682 * enforce a specified policy. 1683 */ 1684 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1685 int userHandle) { 1686 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1687 for (UserInfo ui : profiles) { 1688 int id = ui.id; 1689 sendAdminCommandLocked(action, reqPolicy, id); 1690 } 1691 } 1692 1693 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 1694 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1695 if (admin != null) { 1696 synchronized (this) { 1697 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 1698 } 1699 sendAdminCommandLocked(admin, 1700 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1701 new BroadcastReceiver() { 1702 @Override 1703 public void onReceive(Context context, Intent intent) { 1704 synchronized (DevicePolicyManagerService.this) { 1705 int userHandle = admin.getUserHandle().getIdentifier(); 1706 DevicePolicyData policy = getUserData(userHandle); 1707 boolean doProxyCleanup = admin.info.usesPolicy( 1708 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1709 policy.mAdminList.remove(admin); 1710 policy.mAdminMap.remove(adminReceiver); 1711 validatePasswordOwnerLocked(policy); 1712 if (doProxyCleanup) { 1713 resetGlobalProxyLocked(getUserData(userHandle)); 1714 } 1715 saveSettingsLocked(userHandle); 1716 updateMaximumTimeToLockLocked(policy); 1717 policy.mRemovingAdmins.remove(adminReceiver); 1718 } 1719 // The removed admin might have disabled camera, so update user 1720 // restrictions. 1721 pushUserRestrictions(userHandle); 1722 } 1723 }); 1724 } 1725 } 1726 1727 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 1728 boolean throwForMissiongPermission) { 1729 if (!mHasFeature) { 1730 return null; 1731 } 1732 enforceCrossUserPermission(userHandle); 1733 Intent resolveIntent = new Intent(); 1734 resolveIntent.setComponent(adminName); 1735 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1736 resolveIntent, 1737 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1738 userHandle); 1739 if (infos == null || infos.size() <= 0) { 1740 throw new IllegalArgumentException("Unknown admin: " + adminName); 1741 } 1742 1743 final ResolveInfo ri = infos.get(0); 1744 1745 if (!permission.BIND_DEVICE_ADMIN.equals(ri.activityInfo.permission)) { 1746 final String message = "DeviceAdminReceiver " + adminName + " must be protected with" 1747 + permission.BIND_DEVICE_ADMIN; 1748 Slog.w(LOG_TAG, message); 1749 if (throwForMissiongPermission && 1750 ri.activityInfo.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 1751 throw new IllegalArgumentException(message); 1752 } 1753 } 1754 1755 try { 1756 return new DeviceAdminInfo(mContext, ri); 1757 } catch (XmlPullParserException | IOException e) { 1758 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1759 e); 1760 return null; 1761 } 1762 } 1763 1764 private JournaledFile makeJournaledFile(int userHandle) { 1765 final String base = userHandle == UserHandle.USER_SYSTEM 1766 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 1767 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1768 DEVICE_POLICIES_XML).getAbsolutePath(); 1769 if (VERBOSE_LOG) { 1770 Log.v(LOG_TAG, "Opening " + base); 1771 } 1772 return new JournaledFile(new File(base), new File(base + ".tmp")); 1773 } 1774 1775 private void saveSettingsLocked(int userHandle) { 1776 DevicePolicyData policy = getUserData(userHandle); 1777 JournaledFile journal = makeJournaledFile(userHandle); 1778 FileOutputStream stream = null; 1779 try { 1780 stream = new FileOutputStream(journal.chooseForWrite(), false); 1781 XmlSerializer out = new FastXmlSerializer(); 1782 out.setOutput(stream, StandardCharsets.UTF_8.name()); 1783 out.startDocument(null, true); 1784 1785 out.startTag(null, "policies"); 1786 if (policy.mRestrictionsProvider != null) { 1787 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1788 policy.mRestrictionsProvider.flattenToString()); 1789 } 1790 if (policy.mUserSetupComplete) { 1791 out.attribute(null, ATTR_SETUP_COMPLETE, 1792 Boolean.toString(true)); 1793 } 1794 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 1795 out.attribute(null, ATTR_PERMISSION_POLICY, 1796 Integer.toString(policy.mPermissionPolicy)); 1797 } 1798 if (policy.mDelegatedCertInstallerPackage != null) { 1799 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 1800 policy.mDelegatedCertInstallerPackage); 1801 } 1802 1803 final int N = policy.mAdminList.size(); 1804 for (int i=0; i<N; i++) { 1805 ActiveAdmin ap = policy.mAdminList.get(i); 1806 if (ap != null) { 1807 out.startTag(null, "admin"); 1808 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1809 ap.writeToXml(out); 1810 out.endTag(null, "admin"); 1811 } 1812 } 1813 1814 if (policy.mPasswordOwner >= 0) { 1815 out.startTag(null, "password-owner"); 1816 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1817 out.endTag(null, "password-owner"); 1818 } 1819 1820 if (policy.mFailedPasswordAttempts != 0) { 1821 out.startTag(null, "failed-password-attempts"); 1822 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1823 out.endTag(null, "failed-password-attempts"); 1824 } 1825 1826 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1827 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1828 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1829 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1830 out.startTag(null, "active-password"); 1831 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1832 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1833 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1834 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1835 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1836 out.attribute(null, "numeric", Integer 1837 .toString(policy.mActivePasswordNumeric)); 1838 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1839 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1840 out.endTag(null, "active-password"); 1841 } 1842 1843 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1844 String component = policy.mLockTaskPackages.get(i); 1845 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 1846 out.attribute(null, "name", component); 1847 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 1848 } 1849 1850 if (policy.mStatusBarDisabled) { 1851 out.startTag(null, TAG_STATUS_BAR); 1852 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 1853 out.endTag(null, TAG_STATUS_BAR); 1854 } 1855 1856 if (policy.doNotAskCredentialsOnBoot) { 1857 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1858 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1859 } 1860 1861 out.endTag(null, "policies"); 1862 1863 out.endDocument(); 1864 stream.flush(); 1865 FileUtils.sync(stream); 1866 stream.close(); 1867 journal.commit(); 1868 sendChangedNotification(userHandle); 1869 } catch (IOException e) { 1870 Slog.w(LOG_TAG, "failed writing file", e); 1871 try { 1872 if (stream != null) { 1873 stream.close(); 1874 } 1875 } catch (IOException ex) { 1876 // Ignore 1877 } 1878 journal.rollback(); 1879 } 1880 } 1881 1882 private void sendChangedNotification(int userHandle) { 1883 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1884 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1885 long ident = mInjector.binderClearCallingIdentity(); 1886 try { 1887 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1888 } finally { 1889 mInjector.binderRestoreCallingIdentity(ident); 1890 } 1891 } 1892 1893 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1894 JournaledFile journal = makeJournaledFile(userHandle); 1895 FileInputStream stream = null; 1896 File file = journal.chooseForRead(); 1897 try { 1898 stream = new FileInputStream(file); 1899 XmlPullParser parser = Xml.newPullParser(); 1900 parser.setInput(stream, StandardCharsets.UTF_8.name()); 1901 1902 int type; 1903 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1904 && type != XmlPullParser.START_TAG) { 1905 } 1906 String tag = parser.getName(); 1907 if (!"policies".equals(tag)) { 1908 throw new XmlPullParserException( 1909 "Settings do not start with policies tag: found " + tag); 1910 } 1911 1912 // Extract the permission provider component name if available 1913 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1914 if (permissionProvider != null) { 1915 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1916 } 1917 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1918 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1919 policy.mUserSetupComplete = true; 1920 } 1921 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 1922 if (!TextUtils.isEmpty(permissionPolicy)) { 1923 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 1924 } 1925 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 1926 ATTR_DELEGATED_CERT_INSTALLER); 1927 1928 type = parser.next(); 1929 int outerDepth = parser.getDepth(); 1930 policy.mLockTaskPackages.clear(); 1931 policy.mAdminList.clear(); 1932 policy.mAdminMap.clear(); 1933 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1934 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1935 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1936 continue; 1937 } 1938 tag = parser.getName(); 1939 if ("admin".equals(tag)) { 1940 String name = parser.getAttributeValue(null, "name"); 1941 try { 1942 DeviceAdminInfo dai = findAdmin( 1943 ComponentName.unflattenFromString(name), userHandle, 1944 /* throwForMissionPermission= */ false); 1945 if (VERBOSE_LOG 1946 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1947 != userHandle)) { 1948 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1949 + dai.getActivityInfo().applicationInfo.uid + " for user " 1950 + userHandle); 1951 } 1952 if (dai != null) { 1953 ActiveAdmin ap = new ActiveAdmin(dai); 1954 ap.readFromXml(parser); 1955 policy.mAdminMap.put(ap.info.getComponent(), ap); 1956 } 1957 } catch (RuntimeException e) { 1958 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1959 } 1960 } else if ("failed-password-attempts".equals(tag)) { 1961 policy.mFailedPasswordAttempts = Integer.parseInt( 1962 parser.getAttributeValue(null, "value")); 1963 } else if ("password-owner".equals(tag)) { 1964 policy.mPasswordOwner = Integer.parseInt( 1965 parser.getAttributeValue(null, "value")); 1966 } else if ("active-password".equals(tag)) { 1967 policy.mActivePasswordQuality = Integer.parseInt( 1968 parser.getAttributeValue(null, "quality")); 1969 policy.mActivePasswordLength = Integer.parseInt( 1970 parser.getAttributeValue(null, "length")); 1971 policy.mActivePasswordUpperCase = Integer.parseInt( 1972 parser.getAttributeValue(null, "uppercase")); 1973 policy.mActivePasswordLowerCase = Integer.parseInt( 1974 parser.getAttributeValue(null, "lowercase")); 1975 policy.mActivePasswordLetters = Integer.parseInt( 1976 parser.getAttributeValue(null, "letters")); 1977 policy.mActivePasswordNumeric = Integer.parseInt( 1978 parser.getAttributeValue(null, "numeric")); 1979 policy.mActivePasswordSymbols = Integer.parseInt( 1980 parser.getAttributeValue(null, "symbols")); 1981 policy.mActivePasswordNonLetter = Integer.parseInt( 1982 parser.getAttributeValue(null, "nonletter")); 1983 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 1984 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 1985 } else if (TAG_STATUS_BAR.equals(tag)) { 1986 policy.mStatusBarDisabled = Boolean.parseBoolean( 1987 parser.getAttributeValue(null, ATTR_DISABLED)); 1988 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 1989 policy.doNotAskCredentialsOnBoot = true; 1990 } else { 1991 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1992 XmlUtils.skipCurrentTag(parser); 1993 } 1994 } 1995 } catch (FileNotFoundException e) { 1996 // Don't be noisy, this is normal if we haven't defined any policies. 1997 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 1998 | IndexOutOfBoundsException e) { 1999 Slog.w(LOG_TAG, "failed parsing " + file, e); 2000 } 2001 try { 2002 if (stream != null) { 2003 stream.close(); 2004 } 2005 } catch (IOException e) { 2006 // Ignore 2007 } 2008 2009 // Generate a list of admins from the admin map 2010 policy.mAdminList.addAll(policy.mAdminMap.values()); 2011 2012 // Validate that what we stored for the password quality matches 2013 // sufficiently what is currently set. Note that this is only 2014 // a sanity check in case the two get out of sync; this should 2015 // never normally happen. 2016 final long identity = mInjector.binderClearCallingIdentity(); 2017 try { 2018 LockPatternUtils utils = mInjector.newLockPatternUtils(); 2019 if (utils.getActivePasswordQuality(userHandle) < policy.mActivePasswordQuality) { 2020 Slog.w(LOG_TAG, "Active password quality 0x" 2021 + Integer.toHexString(policy.mActivePasswordQuality) 2022 + " does not match actual quality 0x" 2023 + Integer.toHexString(utils.getActivePasswordQuality(userHandle))); 2024 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2025 policy.mActivePasswordLength = 0; 2026 policy.mActivePasswordUpperCase = 0; 2027 policy.mActivePasswordLowerCase = 0; 2028 policy.mActivePasswordLetters = 0; 2029 policy.mActivePasswordNumeric = 0; 2030 policy.mActivePasswordSymbols = 0; 2031 policy.mActivePasswordNonLetter = 0; 2032 } 2033 } finally { 2034 mInjector.binderRestoreCallingIdentity(identity); 2035 } 2036 2037 validatePasswordOwnerLocked(policy); 2038 updateMaximumTimeToLockLocked(policy); 2039 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2040 if (policy.mStatusBarDisabled) { 2041 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2042 } 2043 } 2044 2045 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2046 long ident = mInjector.binderClearCallingIdentity(); 2047 try { 2048 mInjector.getIActivityManager() 2049 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2050 } catch (RemoteException e) { 2051 // Not gonna happen. 2052 } finally { 2053 mInjector.binderRestoreCallingIdentity(ident); 2054 } 2055 } 2056 2057 private void updateDeviceOwnerLocked() { 2058 long ident = mInjector.binderClearCallingIdentity(); 2059 try { 2060 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2061 // user id and also protect all other DAs too. 2062 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2063 if (deviceOwnerComponent != null) { 2064 mInjector.getIActivityManager() 2065 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2066 } 2067 } catch (RemoteException e) { 2068 // Not gonna happen. 2069 } finally { 2070 mInjector.binderRestoreCallingIdentity(ident); 2071 } 2072 } 2073 2074 static void validateQualityConstant(int quality) { 2075 switch (quality) { 2076 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2077 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2078 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2079 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2080 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2081 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2082 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2083 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2084 return; 2085 } 2086 throw new IllegalArgumentException("Invalid quality constant: 0x" 2087 + Integer.toHexString(quality)); 2088 } 2089 2090 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2091 if (policy.mPasswordOwner >= 0) { 2092 boolean haveOwner = false; 2093 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2094 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2095 haveOwner = true; 2096 break; 2097 } 2098 } 2099 if (!haveOwner) { 2100 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2101 + " no longer active; disabling"); 2102 policy.mPasswordOwner = -1; 2103 } 2104 } 2105 } 2106 2107 @VisibleForTesting 2108 void systemReady(int phase) { 2109 if (!mHasFeature) { 2110 return; 2111 } 2112 switch (phase) { 2113 case SystemService.PHASE_LOCK_SETTINGS_READY: 2114 onLockSettingsReady(); 2115 break; 2116 case SystemService.PHASE_BOOT_COMPLETED: 2117 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2118 break; 2119 } 2120 } 2121 2122 private void onLockSettingsReady() { 2123 getUserData(UserHandle.USER_SYSTEM); 2124 loadOwners(); 2125 cleanUpOldUsers(); 2126 2127 onStartUser(UserHandle.USER_SYSTEM); 2128 2129 // Register an observer for watching for user setup complete. 2130 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 2131 // Initialize the user setup state, to handle the upgrade case. 2132 updateUserSetupComplete(); 2133 2134 List<String> packageList; 2135 synchronized (this) { 2136 packageList = getKeepUninstalledPackagesLocked(); 2137 } 2138 if (packageList != null) { 2139 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2140 } 2141 } 2142 2143 private void ensureDeviceOwnerUserStarted() { 2144 final int userId; 2145 synchronized (this) { 2146 if (!mOwners.hasDeviceOwner()) { 2147 return; 2148 } 2149 userId = mOwners.getDeviceOwnerUserId(); 2150 } 2151 if (VERBOSE_LOG) { 2152 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2153 } 2154 if (userId != UserHandle.USER_SYSTEM) { 2155 try { 2156 mInjector.getIActivityManager().startUserInBackground(userId); 2157 2158 // STOPSHIP Prevent the DO user from being killed. 2159 2160 } catch (RemoteException e) { 2161 Slog.w(LOG_TAG, "Exception starting user", e); 2162 } 2163 } 2164 } 2165 2166 private void onStartUser(int userId) { 2167 updateScreenCaptureDisabledInWindowManager(userId, 2168 getScreenCaptureDisabled(null, userId)); 2169 pushUserRestrictions(userId); 2170 } 2171 2172 private void cleanUpOldUsers() { 2173 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2174 // before reboot 2175 Set<Integer> usersWithProfileOwners; 2176 Set<Integer> usersWithData; 2177 synchronized(this) { 2178 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2179 usersWithData = new ArraySet<>(); 2180 for (int i = 0; i < mUserData.size(); i++) { 2181 usersWithData.add(mUserData.keyAt(i)); 2182 } 2183 } 2184 List<UserInfo> allUsers = mUserManager.getUsers(); 2185 2186 Set<Integer> deletedUsers = new ArraySet<>(); 2187 deletedUsers.addAll(usersWithProfileOwners); 2188 deletedUsers.addAll(usersWithData); 2189 for (UserInfo userInfo : allUsers) { 2190 deletedUsers.remove(userInfo.id); 2191 } 2192 for (Integer userId : deletedUsers) { 2193 removeUserData(userId); 2194 } 2195 } 2196 2197 private void handlePasswordExpirationNotification(int userHandle) { 2198 synchronized (this) { 2199 final long now = System.currentTimeMillis(); 2200 2201 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2202 for (UserInfo ui : profiles) { 2203 int profileUserHandle = ui.id; 2204 final DevicePolicyData policy = getUserData(profileUserHandle); 2205 final int count = policy.mAdminList.size(); 2206 if (count > 0) { 2207 for (int i = 0; i < count; i++) { 2208 final ActiveAdmin admin = policy.mAdminList.get(i); 2209 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2210 && admin.passwordExpirationTimeout > 0L 2211 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2212 && admin.passwordExpirationDate > 0L) { 2213 sendAdminCommandLocked(admin, 2214 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2215 } 2216 } 2217 } 2218 } 2219 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2220 } 2221 } 2222 2223 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 2224 @Override 2225 protected Void doInBackground(Intent... params) { 2226 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 2227 2228 if (userHandle == UserHandle.USER_ALL) { 2229 for (UserInfo userInfo : mUserManager.getUsers()) { 2230 manageNotification(userInfo.getUserHandle()); 2231 } 2232 } else { 2233 manageNotification(new UserHandle(userHandle)); 2234 } 2235 return null; 2236 } 2237 2238 private void manageNotification(UserHandle userHandle) { 2239 if (!mUserManager.isUserRunning(userHandle)) { 2240 return; 2241 } 2242 2243 // Call out to KeyChain to check for user-added CAs 2244 boolean hasCert = false; 2245 try { 2246 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 2247 try { 2248 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 2249 hasCert = true; 2250 } 2251 } catch (RemoteException e) { 2252 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2253 } finally { 2254 kcs.close(); 2255 } 2256 } catch (InterruptedException e) { 2257 Thread.currentThread().interrupt(); 2258 } catch (RuntimeException e) { 2259 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2260 } 2261 if (!hasCert) { 2262 mInjector.getNotificationManager().cancelAsUser( 2263 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2264 return; 2265 } 2266 2267 // Build and show a warning notification 2268 int smallIconId; 2269 String contentText; 2270 // TODO Why does it use the DO name? The cert APIs are all for PO. b/25772443 2271 final String ownerName = getDeviceOwnerName(); 2272 if (isManagedProfile(userHandle.getIdentifier())) { 2273 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 2274 smallIconId = R.drawable.stat_sys_certificate_info; 2275 } else if (ownerName != null) { 2276 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 2277 smallIconId = R.drawable.stat_sys_certificate_info; 2278 } else { 2279 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2280 smallIconId = android.R.drawable.stat_sys_warning; 2281 } 2282 2283 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2284 dialogIntent.setFlags( 2285 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2286 dialogIntent.setPackage("com.android.settings"); 2287 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2288 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 2289 2290 final Context userContext; 2291 try { 2292 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 2293 } catch (PackageManager.NameNotFoundException e) { 2294 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2295 return; 2296 } 2297 final Notification noti = new Notification.Builder(userContext) 2298 .setSmallIcon(smallIconId) 2299 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 2300 .setContentText(contentText) 2301 .setContentIntent(notifyIntent) 2302 .setPriority(Notification.PRIORITY_HIGH) 2303 .setShowWhen(false) 2304 .setColor(mContext.getColor( 2305 com.android.internal.R.color.system_notification_accent_color)) 2306 .build(); 2307 2308 mInjector.getNotificationManager().notifyAsUser( 2309 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2310 } 2311 } 2312 2313 /** 2314 * @param adminReceiver The admin to add 2315 * @param refreshing true = update an active admin, no error 2316 */ 2317 @Override 2318 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2319 if (!mHasFeature) { 2320 return; 2321 } 2322 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2323 } 2324 2325 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2326 Bundle onEnableData) { 2327 mContext.enforceCallingOrSelfPermission( 2328 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2329 enforceCrossUserPermission(userHandle); 2330 2331 DevicePolicyData policy = getUserData(userHandle); 2332 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 2333 /* throwForMissionPermission= */ true); 2334 if (info == null) { 2335 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2336 } 2337 synchronized (this) { 2338 long ident = mInjector.binderClearCallingIdentity(); 2339 try { 2340 if (!refreshing 2341 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 2342 throw new IllegalArgumentException("Admin is already added"); 2343 } 2344 ActiveAdmin newAdmin = new ActiveAdmin(info); 2345 policy.mAdminMap.put(adminReceiver, newAdmin); 2346 int replaceIndex = -1; 2347 final int N = policy.mAdminList.size(); 2348 for (int i=0; i < N; i++) { 2349 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2350 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2351 replaceIndex = i; 2352 break; 2353 } 2354 } 2355 if (replaceIndex == -1) { 2356 policy.mAdminList.add(newAdmin); 2357 enableIfNecessary(info.getPackageName(), userHandle); 2358 } else { 2359 policy.mAdminList.set(replaceIndex, newAdmin); 2360 } 2361 saveSettingsLocked(userHandle); 2362 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2363 onEnableData, null); 2364 } finally { 2365 mInjector.binderRestoreCallingIdentity(ident); 2366 } 2367 } 2368 } 2369 2370 @Override 2371 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2372 if (!mHasFeature) { 2373 return false; 2374 } 2375 enforceCrossUserPermission(userHandle); 2376 synchronized (this) { 2377 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2378 } 2379 } 2380 2381 @Override 2382 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2383 if (!mHasFeature) { 2384 return false; 2385 } 2386 enforceCrossUserPermission(userHandle); 2387 synchronized (this) { 2388 DevicePolicyData policyData = getUserData(userHandle); 2389 return policyData.mRemovingAdmins.contains(adminReceiver); 2390 } 2391 } 2392 2393 @Override 2394 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2395 if (!mHasFeature) { 2396 return false; 2397 } 2398 enforceCrossUserPermission(userHandle); 2399 synchronized (this) { 2400 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2401 if (administrator == null) { 2402 throw new SecurityException("No active admin " + adminReceiver); 2403 } 2404 return administrator.info.usesPolicy(policyId); 2405 } 2406 } 2407 2408 @Override 2409 @SuppressWarnings("unchecked") 2410 public List<ComponentName> getActiveAdmins(int userHandle) { 2411 if (!mHasFeature) { 2412 return Collections.EMPTY_LIST; 2413 } 2414 2415 enforceCrossUserPermission(userHandle); 2416 synchronized (this) { 2417 DevicePolicyData policy = getUserData(userHandle); 2418 final int N = policy.mAdminList.size(); 2419 if (N <= 0) { 2420 return null; 2421 } 2422 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2423 for (int i=0; i<N; i++) { 2424 res.add(policy.mAdminList.get(i).info.getComponent()); 2425 } 2426 return res; 2427 } 2428 } 2429 2430 @Override 2431 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2432 if (!mHasFeature) { 2433 return false; 2434 } 2435 enforceCrossUserPermission(userHandle); 2436 synchronized (this) { 2437 DevicePolicyData policy = getUserData(userHandle); 2438 final int N = policy.mAdminList.size(); 2439 for (int i=0; i<N; i++) { 2440 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2441 return true; 2442 } 2443 } 2444 return false; 2445 } 2446 } 2447 2448 @Override 2449 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 2450 if (!mHasFeature) { 2451 return; 2452 } 2453 enforceCrossUserPermission(userHandle); 2454 synchronized (this) { 2455 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2456 if (admin == null) { 2457 return; 2458 } 2459 if (admin.getUid() != mInjector.binderGetCallingUid()) { 2460 // Active device/profile owners must remain active admins. 2461 if (isDeviceOwner(adminReceiver, userHandle) 2462 || isProfileOwner(adminReceiver, userHandle)) { 2463 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 2464 adminReceiver); 2465 return; 2466 } 2467 mContext.enforceCallingOrSelfPermission( 2468 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2469 } 2470 long ident = mInjector.binderClearCallingIdentity(); 2471 try { 2472 removeActiveAdminLocked(adminReceiver, userHandle); 2473 } finally { 2474 mInjector.binderRestoreCallingIdentity(ident); 2475 } 2476 } 2477 } 2478 2479 @Override 2480 public void setPasswordQuality(ComponentName who, int quality) { 2481 if (!mHasFeature) { 2482 return; 2483 } 2484 Preconditions.checkNotNull(who, "ComponentName is null"); 2485 final int userHandle = UserHandle.getCallingUserId(); 2486 validateQualityConstant(quality); 2487 2488 synchronized (this) { 2489 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2490 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2491 if (ap.passwordQuality != quality) { 2492 ap.passwordQuality = quality; 2493 saveSettingsLocked(userHandle); 2494 } 2495 } 2496 } 2497 2498 @Override 2499 public int getPasswordQuality(ComponentName who, int userHandle) { 2500 if (!mHasFeature) { 2501 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2502 } 2503 enforceCrossUserPermission(userHandle); 2504 synchronized (this) { 2505 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2506 2507 if (who != null) { 2508 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2509 return admin != null ? admin.passwordQuality : mode; 2510 } 2511 2512 // Return strictest policy for this user and profiles that are visible from this user. 2513 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2514 for (UserInfo userInfo : profiles) { 2515 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2516 final int N = policy.mAdminList.size(); 2517 for (int i=0; i<N; i++) { 2518 ActiveAdmin admin = policy.mAdminList.get(i); 2519 if (mode < admin.passwordQuality) { 2520 mode = admin.passwordQuality; 2521 } 2522 } 2523 } 2524 return mode; 2525 } 2526 } 2527 2528 @Override 2529 public void setPasswordMinimumLength(ComponentName who, int length) { 2530 if (!mHasFeature) { 2531 return; 2532 } 2533 Preconditions.checkNotNull(who, "ComponentName is null"); 2534 final int userHandle = UserHandle.getCallingUserId(); 2535 synchronized (this) { 2536 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2537 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2538 if (ap.minimumPasswordLength != length) { 2539 ap.minimumPasswordLength = length; 2540 saveSettingsLocked(userHandle); 2541 } 2542 } 2543 } 2544 2545 @Override 2546 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 2547 if (!mHasFeature) { 2548 return 0; 2549 } 2550 enforceCrossUserPermission(userHandle); 2551 synchronized (this) { 2552 int length = 0; 2553 2554 if (who != null) { 2555 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2556 return admin != null ? admin.minimumPasswordLength : length; 2557 } 2558 2559 // Return strictest policy for this user and profiles that are visible from this user. 2560 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2561 for (UserInfo userInfo : profiles) { 2562 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2563 final int N = policy.mAdminList.size(); 2564 for (int i=0; i<N; i++) { 2565 ActiveAdmin admin = policy.mAdminList.get(i); 2566 if (length < admin.minimumPasswordLength) { 2567 length = admin.minimumPasswordLength; 2568 } 2569 } 2570 } 2571 return length; 2572 } 2573 } 2574 2575 @Override 2576 public void setPasswordHistoryLength(ComponentName who, int length) { 2577 if (!mHasFeature) { 2578 return; 2579 } 2580 Preconditions.checkNotNull(who, "ComponentName is null"); 2581 final int userHandle = UserHandle.getCallingUserId(); 2582 synchronized (this) { 2583 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2584 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2585 if (ap.passwordHistoryLength != length) { 2586 ap.passwordHistoryLength = length; 2587 saveSettingsLocked(userHandle); 2588 } 2589 } 2590 } 2591 2592 @Override 2593 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 2594 if (!mHasFeature) { 2595 return 0; 2596 } 2597 enforceCrossUserPermission(userHandle); 2598 synchronized (this) { 2599 int length = 0; 2600 2601 if (who != null) { 2602 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2603 return admin != null ? admin.passwordHistoryLength : length; 2604 } 2605 2606 // Return strictest policy for this user and profiles that are visible from this user. 2607 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2608 for (UserInfo userInfo : profiles) { 2609 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2610 final int N = policy.mAdminList.size(); 2611 for (int i = 0; i < N; i++) { 2612 ActiveAdmin admin = policy.mAdminList.get(i); 2613 if (length < admin.passwordHistoryLength) { 2614 length = admin.passwordHistoryLength; 2615 } 2616 } 2617 } 2618 return length; 2619 } 2620 } 2621 2622 @Override 2623 public void setPasswordExpirationTimeout(ComponentName who, long timeout) { 2624 if (!mHasFeature) { 2625 return; 2626 } 2627 Preconditions.checkNotNull(who, "ComponentName is null"); 2628 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 2629 final int userHandle = UserHandle.getCallingUserId(); 2630 synchronized (this) { 2631 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2632 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2633 // Calling this API automatically bumps the expiration date 2634 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2635 ap.passwordExpirationDate = expiration; 2636 ap.passwordExpirationTimeout = timeout; 2637 if (timeout > 0L) { 2638 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2639 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2640 .format(new Date(expiration))); 2641 } 2642 saveSettingsLocked(userHandle); 2643 // in case this is the first one 2644 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2645 } 2646 } 2647 2648 /** 2649 * Return a single admin's expiration cycle time, or the min of all cycle times. 2650 * Returns 0 if not configured. 2651 */ 2652 @Override 2653 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2654 if (!mHasFeature) { 2655 return 0L; 2656 } 2657 enforceCrossUserPermission(userHandle); 2658 synchronized (this) { 2659 long timeout = 0L; 2660 2661 if (who != null) { 2662 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2663 return admin != null ? admin.passwordExpirationTimeout : timeout; 2664 } 2665 2666 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2667 for (UserInfo userInfo : profiles) { 2668 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2669 final int N = policy.mAdminList.size(); 2670 for (int i = 0; i < N; i++) { 2671 ActiveAdmin admin = policy.mAdminList.get(i); 2672 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2673 && timeout > admin.passwordExpirationTimeout)) { 2674 timeout = admin.passwordExpirationTimeout; 2675 } 2676 } 2677 } 2678 return timeout; 2679 } 2680 } 2681 2682 @Override 2683 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2684 final int userId = UserHandle.getCallingUserId(); 2685 List<String> changedProviders = null; 2686 2687 synchronized (this) { 2688 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2689 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2690 if (activeAdmin.crossProfileWidgetProviders == null) { 2691 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2692 } 2693 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2694 if (!providers.contains(packageName)) { 2695 providers.add(packageName); 2696 changedProviders = new ArrayList<>(providers); 2697 saveSettingsLocked(userId); 2698 } 2699 } 2700 2701 if (changedProviders != null) { 2702 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2703 return true; 2704 } 2705 2706 return false; 2707 } 2708 2709 @Override 2710 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2711 final int userId = UserHandle.getCallingUserId(); 2712 List<String> changedProviders = null; 2713 2714 synchronized (this) { 2715 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2716 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2717 if (activeAdmin.crossProfileWidgetProviders == null) { 2718 return false; 2719 } 2720 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2721 if (providers.remove(packageName)) { 2722 changedProviders = new ArrayList<>(providers); 2723 saveSettingsLocked(userId); 2724 } 2725 } 2726 2727 if (changedProviders != null) { 2728 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2729 return true; 2730 } 2731 2732 return false; 2733 } 2734 2735 @Override 2736 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2737 synchronized (this) { 2738 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2739 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2740 if (activeAdmin.crossProfileWidgetProviders == null 2741 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2742 return null; 2743 } 2744 if (mInjector.binderIsCallingUidMyUid()) { 2745 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2746 } else { 2747 return activeAdmin.crossProfileWidgetProviders; 2748 } 2749 } 2750 } 2751 2752 /** 2753 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2754 * Returns 0 if not configured. 2755 */ 2756 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2757 long timeout = 0L; 2758 2759 if (who != null) { 2760 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2761 return admin != null ? admin.passwordExpirationDate : timeout; 2762 } 2763 2764 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2765 for (UserInfo userInfo : profiles) { 2766 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2767 final int N = policy.mAdminList.size(); 2768 for (int i = 0; i < N; i++) { 2769 ActiveAdmin admin = policy.mAdminList.get(i); 2770 if (timeout == 0L || (admin.passwordExpirationDate != 0 2771 && timeout > admin.passwordExpirationDate)) { 2772 timeout = admin.passwordExpirationDate; 2773 } 2774 } 2775 } 2776 return timeout; 2777 } 2778 2779 @Override 2780 public long getPasswordExpiration(ComponentName who, int userHandle) { 2781 if (!mHasFeature) { 2782 return 0L; 2783 } 2784 enforceCrossUserPermission(userHandle); 2785 synchronized (this) { 2786 return getPasswordExpirationLocked(who, userHandle); 2787 } 2788 } 2789 2790 @Override 2791 public void setPasswordMinimumUpperCase(ComponentName who, int length) { 2792 if (!mHasFeature) { 2793 return; 2794 } 2795 Preconditions.checkNotNull(who, "ComponentName is null"); 2796 final int userHandle = UserHandle.getCallingUserId(); 2797 synchronized (this) { 2798 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2799 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2800 if (ap.minimumPasswordUpperCase != length) { 2801 ap.minimumPasswordUpperCase = length; 2802 saveSettingsLocked(userHandle); 2803 } 2804 } 2805 } 2806 2807 @Override 2808 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2809 if (!mHasFeature) { 2810 return 0; 2811 } 2812 enforceCrossUserPermission(userHandle); 2813 synchronized (this) { 2814 int length = 0; 2815 2816 if (who != null) { 2817 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2818 return admin != null ? admin.minimumPasswordUpperCase : length; 2819 } 2820 2821 // Return strictest policy for this user and profiles that are visible from this user. 2822 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2823 for (UserInfo userInfo : profiles) { 2824 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2825 final int N = policy.mAdminList.size(); 2826 for (int i=0; i<N; i++) { 2827 ActiveAdmin admin = policy.mAdminList.get(i); 2828 if (length < admin.minimumPasswordUpperCase) { 2829 length = admin.minimumPasswordUpperCase; 2830 } 2831 } 2832 } 2833 return length; 2834 } 2835 } 2836 2837 @Override 2838 public void setPasswordMinimumLowerCase(ComponentName who, int length) { 2839 Preconditions.checkNotNull(who, "ComponentName is null"); 2840 final int userHandle = UserHandle.getCallingUserId(); 2841 synchronized (this) { 2842 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2843 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2844 if (ap.minimumPasswordLowerCase != length) { 2845 ap.minimumPasswordLowerCase = length; 2846 saveSettingsLocked(userHandle); 2847 } 2848 } 2849 } 2850 2851 @Override 2852 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2853 if (!mHasFeature) { 2854 return 0; 2855 } 2856 enforceCrossUserPermission(userHandle); 2857 synchronized (this) { 2858 int length = 0; 2859 2860 if (who != null) { 2861 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2862 return admin != null ? admin.minimumPasswordLowerCase : length; 2863 } 2864 2865 // Return strictest policy for this user and profiles that are visible from this user. 2866 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2867 for (UserInfo userInfo : profiles) { 2868 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2869 final int N = policy.mAdminList.size(); 2870 for (int i=0; i<N; i++) { 2871 ActiveAdmin admin = policy.mAdminList.get(i); 2872 if (length < admin.minimumPasswordLowerCase) { 2873 length = admin.minimumPasswordLowerCase; 2874 } 2875 } 2876 } 2877 return length; 2878 } 2879 } 2880 2881 @Override 2882 public void setPasswordMinimumLetters(ComponentName who, int length) { 2883 if (!mHasFeature) { 2884 return; 2885 } 2886 Preconditions.checkNotNull(who, "ComponentName is null"); 2887 final int userHandle = UserHandle.getCallingUserId(); 2888 synchronized (this) { 2889 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2890 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2891 if (ap.minimumPasswordLetters != length) { 2892 ap.minimumPasswordLetters = length; 2893 saveSettingsLocked(userHandle); 2894 } 2895 } 2896 } 2897 2898 @Override 2899 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2900 if (!mHasFeature) { 2901 return 0; 2902 } 2903 enforceCrossUserPermission(userHandle); 2904 synchronized (this) { 2905 int length = 0; 2906 2907 if (who != null) { 2908 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2909 return admin != null ? admin.minimumPasswordLetters : length; 2910 } 2911 2912 // Return strictest policy for this user and profiles that are visible from this user. 2913 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2914 for (UserInfo userInfo : profiles) { 2915 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2916 final int N = policy.mAdminList.size(); 2917 for (int i=0; i<N; i++) { 2918 ActiveAdmin admin = policy.mAdminList.get(i); 2919 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2920 continue; 2921 } 2922 if (length < admin.minimumPasswordLetters) { 2923 length = admin.minimumPasswordLetters; 2924 } 2925 } 2926 } 2927 return length; 2928 } 2929 } 2930 2931 @Override 2932 public void setPasswordMinimumNumeric(ComponentName who, int length) { 2933 if (!mHasFeature) { 2934 return; 2935 } 2936 Preconditions.checkNotNull(who, "ComponentName is null"); 2937 final int userHandle = UserHandle.getCallingUserId(); 2938 synchronized (this) { 2939 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2940 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2941 if (ap.minimumPasswordNumeric != length) { 2942 ap.minimumPasswordNumeric = length; 2943 saveSettingsLocked(userHandle); 2944 } 2945 } 2946 } 2947 2948 @Override 2949 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2950 if (!mHasFeature) { 2951 return 0; 2952 } 2953 enforceCrossUserPermission(userHandle); 2954 synchronized (this) { 2955 int length = 0; 2956 2957 if (who != null) { 2958 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2959 return admin != null ? admin.minimumPasswordNumeric : length; 2960 } 2961 2962 // Return strictest policy for this user and profiles that are visible from this user. 2963 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2964 for (UserInfo userInfo : profiles) { 2965 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2966 final int N = policy.mAdminList.size(); 2967 for (int i = 0; i < N; i++) { 2968 ActiveAdmin admin = policy.mAdminList.get(i); 2969 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2970 continue; 2971 } 2972 if (length < admin.minimumPasswordNumeric) { 2973 length = admin.minimumPasswordNumeric; 2974 } 2975 } 2976 } 2977 return length; 2978 } 2979 } 2980 2981 @Override 2982 public void setPasswordMinimumSymbols(ComponentName who, int length) { 2983 if (!mHasFeature) { 2984 return; 2985 } 2986 Preconditions.checkNotNull(who, "ComponentName is null"); 2987 final int userHandle = UserHandle.getCallingUserId(); 2988 synchronized (this) { 2989 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2990 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2991 if (ap.minimumPasswordSymbols != length) { 2992 ap.minimumPasswordSymbols = length; 2993 saveSettingsLocked(userHandle); 2994 } 2995 } 2996 } 2997 2998 @Override 2999 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 3000 if (!mHasFeature) { 3001 return 0; 3002 } 3003 enforceCrossUserPermission(userHandle); 3004 synchronized (this) { 3005 int length = 0; 3006 3007 if (who != null) { 3008 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3009 return admin != null ? admin.minimumPasswordSymbols : length; 3010 } 3011 3012 // Return strictest policy for this user and profiles that are visible from this user. 3013 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3014 for (UserInfo userInfo : profiles) { 3015 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3016 final int N = policy.mAdminList.size(); 3017 for (int i=0; i<N; i++) { 3018 ActiveAdmin admin = policy.mAdminList.get(i); 3019 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3020 continue; 3021 } 3022 if (length < admin.minimumPasswordSymbols) { 3023 length = admin.minimumPasswordSymbols; 3024 } 3025 } 3026 } 3027 return length; 3028 } 3029 } 3030 3031 @Override 3032 public void setPasswordMinimumNonLetter(ComponentName who, int length) { 3033 if (!mHasFeature) { 3034 return; 3035 } 3036 Preconditions.checkNotNull(who, "ComponentName is null"); 3037 final int userHandle = UserHandle.getCallingUserId(); 3038 synchronized (this) { 3039 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3040 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3041 if (ap.minimumPasswordNonLetter != length) { 3042 ap.minimumPasswordNonLetter = length; 3043 saveSettingsLocked(userHandle); 3044 } 3045 } 3046 } 3047 3048 @Override 3049 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 3050 if (!mHasFeature) { 3051 return 0; 3052 } 3053 enforceCrossUserPermission(userHandle); 3054 synchronized (this) { 3055 int length = 0; 3056 3057 if (who != null) { 3058 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3059 return admin != null ? admin.minimumPasswordNonLetter : length; 3060 } 3061 3062 // Return strictest policy for this user and profiles that are visible from this user. 3063 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3064 for (UserInfo userInfo : profiles) { 3065 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3066 final int N = policy.mAdminList.size(); 3067 for (int i=0; i<N; i++) { 3068 ActiveAdmin admin = policy.mAdminList.get(i); 3069 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3070 continue; 3071 } 3072 if (length < admin.minimumPasswordNonLetter) { 3073 length = admin.minimumPasswordNonLetter; 3074 } 3075 } 3076 } 3077 return length; 3078 } 3079 } 3080 3081 @Override 3082 public boolean isActivePasswordSufficient(int userHandle) { 3083 if (!mHasFeature) { 3084 return true; 3085 } 3086 enforceCrossUserPermission(userHandle); 3087 3088 synchronized (this) { 3089 int id = getCredentialOwner(userHandle); 3090 DevicePolicyData policy = getUserDataUnchecked(id); 3091 3092 // This API can only be called by an active device admin, 3093 // so try to retrieve it to check that the caller is one. 3094 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3095 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 3096 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 3097 return false; 3098 } 3099 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3100 return true; 3101 } 3102 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 3103 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 3104 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 3105 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 3106 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 3107 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 3108 } 3109 } 3110 3111 @Override 3112 public int getCurrentFailedPasswordAttempts(int userHandle) { 3113 synchronized (this) { 3114 // This API can only be called by an active device admin, 3115 // so try to retrieve it to check that the caller is one. 3116 getActiveAdminForCallerLocked(null, 3117 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3118 3119 int credentialOwnerId = getCredentialOwner(userHandle); 3120 DevicePolicyData policy = getUserDataUnchecked(credentialOwnerId); 3121 3122 return policy.mFailedPasswordAttempts; 3123 } 3124 } 3125 3126 @Override 3127 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) { 3128 if (!mHasFeature) { 3129 return; 3130 } 3131 Preconditions.checkNotNull(who, "ComponentName is null"); 3132 final int userHandle = UserHandle.getCallingUserId(); 3133 synchronized (this) { 3134 // This API can only be called by an active device admin, 3135 // so try to retrieve it to check that the caller is one. 3136 getActiveAdminForCallerLocked(who, 3137 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3138 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3139 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3140 if (ap.maximumFailedPasswordsForWipe != num) { 3141 ap.maximumFailedPasswordsForWipe = num; 3142 saveSettingsLocked(userHandle); 3143 } 3144 } 3145 } 3146 3147 @Override 3148 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 3149 if (!mHasFeature) { 3150 return 0; 3151 } 3152 enforceCrossUserPermission(userHandle); 3153 synchronized (this) { 3154 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 3155 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3156 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3157 } 3158 } 3159 3160 @Override 3161 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle) { 3162 if (!mHasFeature) { 3163 return UserHandle.USER_NULL; 3164 } 3165 enforceCrossUserPermission(userHandle); 3166 synchronized (this) { 3167 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3168 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3169 } 3170 } 3171 3172 /** 3173 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 3174 * profiles that are visible from this user. If the policy for the primary and any other profile 3175 * are equal, it returns the admin for the primary profile. 3176 * Returns {@code null} if none of them have that policy set. 3177 */ 3178 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 3179 int count = 0; 3180 ActiveAdmin strictestAdmin = null; 3181 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3182 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3183 for (ActiveAdmin admin : policy.mAdminList) { 3184 if (admin.maximumFailedPasswordsForWipe == 3185 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3186 continue; // No max number of failed passwords policy set for this profile. 3187 } 3188 3189 // We always favor the primary profile if several profiles have the same value set. 3190 if (count == 0 || 3191 count > admin.maximumFailedPasswordsForWipe || 3192 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 3193 count = admin.maximumFailedPasswordsForWipe; 3194 strictestAdmin = admin; 3195 } 3196 } 3197 } 3198 return strictestAdmin; 3199 } 3200 3201 @Override 3202 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 3203 if (!mHasFeature) { 3204 return false; 3205 } 3206 final int callingUid = mInjector.binderGetCallingUid(); 3207 final int userHandle = mInjector.userHandleGetCallingUserId(); 3208 3209 long ident = mInjector.binderClearCallingIdentity(); 3210 try { 3211 if (getCredentialOwner(userHandle) != userHandle) { 3212 throw new SecurityException("You can not change password for this profile because" 3213 + " it shares the password with the owner profile"); 3214 } 3215 } finally { 3216 mInjector.binderRestoreCallingIdentity(ident); 3217 } 3218 3219 String password = passwordOrNull != null ? passwordOrNull : ""; 3220 3221 int quality; 3222 synchronized (this) { 3223 // If caller has PO (or DO), it can clear the password, so see if that's the case 3224 // first. 3225 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 3226 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 3227 if (admin == null) { 3228 // Otherwise, make sure the caller has any active admin with the right policy. 3229 admin = getActiveAdminForCallerLocked(null, 3230 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3231 } 3232 3233 final ComponentName adminComponent = admin.info.getComponent(); 3234 3235 // As of N, only profile owners and device owners can reset the password. 3236 if (!(isProfileOwner(adminComponent, userHandle) 3237 || isDeviceOwner(adminComponent, userHandle))) { 3238 final boolean preN = getTargetSdk(admin.info.getPackageName(), userHandle) 3239 < android.os.Build.VERSION_CODES.N; 3240 // As of N, password resetting to empty/null is not allowed anymore. 3241 // TODO Should we allow DO/PO to set an empty password? 3242 if (TextUtils.isEmpty(password)) { 3243 if (!preN) { 3244 throw new SecurityException("Cannot call with null password"); 3245 } else { 3246 Slog.e(LOG_TAG, "Cannot call with null password"); 3247 return false; 3248 } 3249 } 3250 // As of N, password cannot be changed by the admin if it is already set. 3251 if (isLockScreenSecureUnchecked(userHandle)) { 3252 if (!preN) { 3253 throw new SecurityException("Admin cannot change current password"); 3254 } else { 3255 Slog.e(LOG_TAG, "Admin cannot change current password"); 3256 return false; 3257 } 3258 } 3259 } 3260 quality = getPasswordQuality(null, userHandle); 3261 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3262 int realQuality = LockPatternUtils.computePasswordQuality(password); 3263 if (realQuality < quality 3264 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3265 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3266 + Integer.toHexString(realQuality) 3267 + " does not meet required quality 0x" 3268 + Integer.toHexString(quality)); 3269 return false; 3270 } 3271 quality = Math.max(realQuality, quality); 3272 } 3273 int length = getPasswordMinimumLength(null, userHandle); 3274 if (password.length() < length) { 3275 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3276 + " does not meet required length " + length); 3277 return false; 3278 } 3279 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3280 int letters = 0; 3281 int uppercase = 0; 3282 int lowercase = 0; 3283 int numbers = 0; 3284 int symbols = 0; 3285 int nonletter = 0; 3286 for (int i = 0; i < password.length(); i++) { 3287 char c = password.charAt(i); 3288 if (c >= 'A' && c <= 'Z') { 3289 letters++; 3290 uppercase++; 3291 } else if (c >= 'a' && c <= 'z') { 3292 letters++; 3293 lowercase++; 3294 } else if (c >= '0' && c <= '9') { 3295 numbers++; 3296 nonletter++; 3297 } else { 3298 symbols++; 3299 nonletter++; 3300 } 3301 } 3302 int neededLetters = getPasswordMinimumLetters(null, userHandle); 3303 if(letters < neededLetters) { 3304 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 3305 + " does not meet required number of letters " + neededLetters); 3306 return false; 3307 } 3308 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 3309 if (numbers < neededNumbers) { 3310 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 3311 + " does not meet required number of numerical digits " 3312 + neededNumbers); 3313 return false; 3314 } 3315 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 3316 if (lowercase < neededLowerCase) { 3317 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 3318 + " does not meet required number of lowercase letters " 3319 + neededLowerCase); 3320 return false; 3321 } 3322 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 3323 if (uppercase < neededUpperCase) { 3324 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 3325 + " does not meet required number of uppercase letters " 3326 + neededUpperCase); 3327 return false; 3328 } 3329 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 3330 if (symbols < neededSymbols) { 3331 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 3332 + " does not meet required number of special symbols " + neededSymbols); 3333 return false; 3334 } 3335 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 3336 if (nonletter < neededNonLetter) { 3337 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 3338 + " does not meet required number of non-letter characters " 3339 + neededNonLetter); 3340 return false; 3341 } 3342 } 3343 } 3344 3345 DevicePolicyData policy = getUserData(userHandle); 3346 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 3347 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 3348 return false; 3349 } 3350 3351 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 3352 boolean doNotAskCredentialsOnBoot = 3353 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 3354 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 3355 setDoNotAskCredentialsOnBoot(); 3356 } 3357 3358 // Don't do this with the lock held, because it is going to call 3359 // back in to the service. 3360 ident = mInjector.binderClearCallingIdentity(); 3361 try { 3362 LockPatternUtils utils = mInjector.newLockPatternUtils(); 3363 if (!TextUtils.isEmpty(password)) { 3364 utils.saveLockPassword(password, null, quality, userHandle); 3365 } else { 3366 utils.clearLock(userHandle); 3367 } 3368 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 3369 if (requireEntry) { 3370 utils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 3371 UserHandle.USER_ALL); 3372 } 3373 synchronized (this) { 3374 int newOwner = requireEntry ? callingUid : -1; 3375 if (policy.mPasswordOwner != newOwner) { 3376 policy.mPasswordOwner = newOwner; 3377 saveSettingsLocked(userHandle); 3378 } 3379 } 3380 } finally { 3381 mInjector.binderRestoreCallingIdentity(ident); 3382 } 3383 3384 return true; 3385 } 3386 3387 private boolean isLockScreenSecureUnchecked(int userId) { 3388 long ident = mInjector.binderClearCallingIdentity(); 3389 try { 3390 return mInjector.newLockPatternUtils().isSecure(userId); 3391 } finally { 3392 mInjector.binderRestoreCallingIdentity(ident); 3393 } 3394 } 3395 3396 private void setDoNotAskCredentialsOnBoot() { 3397 synchronized (this) { 3398 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3399 if (!policyData.doNotAskCredentialsOnBoot) { 3400 policyData.doNotAskCredentialsOnBoot = true; 3401 saveSettingsLocked(UserHandle.USER_SYSTEM); 3402 } 3403 } 3404 } 3405 3406 @Override 3407 public boolean getDoNotAskCredentialsOnBoot() { 3408 mContext.enforceCallingOrSelfPermission( 3409 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 3410 synchronized (this) { 3411 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3412 return policyData.doNotAskCredentialsOnBoot; 3413 } 3414 } 3415 3416 @Override 3417 public void setMaximumTimeToLock(ComponentName who, long timeMs) { 3418 if (!mHasFeature) { 3419 return; 3420 } 3421 Preconditions.checkNotNull(who, "ComponentName is null"); 3422 final int userHandle = UserHandle.getCallingUserId(); 3423 synchronized (this) { 3424 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3425 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3426 if (ap.maximumTimeToUnlock != timeMs) { 3427 ap.maximumTimeToUnlock = timeMs; 3428 saveSettingsLocked(userHandle); 3429 updateMaximumTimeToLockLocked(getUserData(userHandle)); 3430 } 3431 } 3432 } 3433 3434 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 3435 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 3436 if (policy.mLastMaximumTimeToLock == timeMs) { 3437 return; 3438 } 3439 3440 long ident = mInjector.binderClearCallingIdentity(); 3441 try { 3442 if (timeMs <= 0) { 3443 timeMs = Integer.MAX_VALUE; 3444 } else { 3445 // Make sure KEEP_SCREEN_ON is disabled, since that 3446 // would allow bypassing of the maximum time to lock. 3447 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 3448 } 3449 3450 policy.mLastMaximumTimeToLock = timeMs; 3451 // TODO It can overflow. Cap it. 3452 mInjector.getPowerManagerInternal() 3453 .setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 3454 } finally { 3455 mInjector.binderRestoreCallingIdentity(ident); 3456 } 3457 } 3458 3459 @Override 3460 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 3461 if (!mHasFeature) { 3462 return 0; 3463 } 3464 enforceCrossUserPermission(userHandle); 3465 synchronized (this) { 3466 long time = 0; 3467 3468 if (who != null) { 3469 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3470 return admin != null ? admin.maximumTimeToUnlock : time; 3471 } 3472 3473 // Return strictest policy for this user and profiles that are visible from this user. 3474 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3475 for (UserInfo userInfo : profiles) { 3476 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3477 final int N = policy.mAdminList.size(); 3478 for (int i=0; i<N; i++) { 3479 ActiveAdmin admin = policy.mAdminList.get(i); 3480 if (time == 0) { 3481 time = admin.maximumTimeToUnlock; 3482 } else if (admin.maximumTimeToUnlock != 0 3483 && time > admin.maximumTimeToUnlock) { 3484 time = admin.maximumTimeToUnlock; 3485 } 3486 } 3487 } 3488 return time; 3489 } 3490 } 3491 3492 @Override 3493 public void lockNow() { 3494 if (!mHasFeature) { 3495 return; 3496 } 3497 synchronized (this) { 3498 // This API can only be called by an active device admin, 3499 // so try to retrieve it to check that the caller is one. 3500 getActiveAdminForCallerLocked(null, 3501 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3502 lockNowUnchecked(); 3503 } 3504 } 3505 3506 private void lockNowUnchecked() { 3507 long ident = mInjector.binderClearCallingIdentity(); 3508 try { 3509 // Power off the display 3510 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 3511 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 3512 // Ensure the device is locked 3513 new LockPatternUtils(mContext).requireStrongAuth( 3514 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, UserHandle.USER_ALL); 3515 mInjector.getIWindowManager().lockNow(null); 3516 } catch (RemoteException e) { 3517 } finally { 3518 mInjector.binderRestoreCallingIdentity(ident); 3519 } 3520 } 3521 3522 @Override 3523 public void enforceCanManageCaCerts(ComponentName who) { 3524 if (who == null) { 3525 if (!isCallerDelegatedCertInstaller()) { 3526 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 3527 } 3528 } else { 3529 synchronized (this) { 3530 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3531 } 3532 } 3533 } 3534 3535 private void enforceCanManageInstalledKeys(ComponentName who) { 3536 if (who == null) { 3537 if (!isCallerDelegatedCertInstaller()) { 3538 throw new SecurityException("who == null, but caller is not cert installer"); 3539 } 3540 } else { 3541 synchronized (this) { 3542 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3543 } 3544 } 3545 } 3546 3547 private boolean isCallerDelegatedCertInstaller() { 3548 final int callingUid = mInjector.binderGetCallingUid(); 3549 final int userHandle = UserHandle.getUserId(callingUid); 3550 synchronized (this) { 3551 final DevicePolicyData policy = getUserData(userHandle); 3552 if (policy.mDelegatedCertInstallerPackage == null) { 3553 return false; 3554 } 3555 3556 try { 3557 int uid = mContext.getPackageManager().getPackageUid( 3558 policy.mDelegatedCertInstallerPackage, userHandle); 3559 return uid == callingUid; 3560 } catch (NameNotFoundException e) { 3561 return false; 3562 } 3563 } 3564 } 3565 3566 @Override 3567 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 3568 enforceCanManageCaCerts(admin); 3569 3570 byte[] pemCert; 3571 try { 3572 X509Certificate cert = parseCert(certBuffer); 3573 pemCert = Credentials.convertToPem(cert); 3574 } catch (CertificateException ce) { 3575 Log.e(LOG_TAG, "Problem converting cert", ce); 3576 return false; 3577 } catch (IOException ioe) { 3578 Log.e(LOG_TAG, "Problem reading cert", ioe); 3579 return false; 3580 } 3581 3582 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3583 final long id = mInjector.binderClearCallingIdentity(); 3584 try { 3585 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3586 try { 3587 keyChainConnection.getService().installCaCertificate(pemCert); 3588 return true; 3589 } catch (RemoteException e) { 3590 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 3591 } finally { 3592 keyChainConnection.close(); 3593 } 3594 } catch (InterruptedException e1) { 3595 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 3596 Thread.currentThread().interrupt(); 3597 } finally { 3598 mInjector.binderRestoreCallingIdentity(id); 3599 } 3600 return false; 3601 } 3602 3603 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 3604 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 3605 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 3606 certBuffer)); 3607 } 3608 3609 @Override 3610 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 3611 enforceCanManageCaCerts(admin); 3612 3613 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3614 final long id = mInjector.binderClearCallingIdentity(); 3615 try { 3616 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3617 try { 3618 for (int i = 0 ; i < aliases.length; i++) { 3619 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 3620 } 3621 } catch (RemoteException e) { 3622 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 3623 } finally { 3624 keyChainConnection.close(); 3625 } 3626 } catch (InterruptedException ie) { 3627 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 3628 Thread.currentThread().interrupt(); 3629 } finally { 3630 mInjector.binderRestoreCallingIdentity(id); 3631 } 3632 } 3633 3634 @Override 3635 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 3636 enforceCanManageInstalledKeys(who); 3637 3638 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3639 final long id = mInjector.binderClearCallingIdentity(); 3640 try { 3641 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3642 try { 3643 IKeyChainService keyChain = keyChainConnection.getService(); 3644 return keyChain.installKeyPair(privKey, cert, alias); 3645 } catch (RemoteException e) { 3646 Log.e(LOG_TAG, "Installing certificate", e); 3647 } finally { 3648 keyChainConnection.close(); 3649 } 3650 } catch (InterruptedException e) { 3651 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 3652 Thread.currentThread().interrupt(); 3653 } finally { 3654 mInjector.binderRestoreCallingIdentity(id); 3655 } 3656 return false; 3657 } 3658 3659 @Override 3660 public boolean removeKeyPair(ComponentName who, String alias) { 3661 enforceCanManageInstalledKeys(who); 3662 3663 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3664 final long id = Binder.clearCallingIdentity(); 3665 try { 3666 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3667 try { 3668 IKeyChainService keyChain = keyChainConnection.getService(); 3669 return keyChain.removeKeyPair(alias); 3670 } catch (RemoteException e) { 3671 Log.e(LOG_TAG, "Removing keypair", e); 3672 } finally { 3673 keyChainConnection.close(); 3674 } 3675 } catch (InterruptedException e) { 3676 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 3677 Thread.currentThread().interrupt(); 3678 } finally { 3679 Binder.restoreCallingIdentity(id); 3680 } 3681 return false; 3682 } 3683 3684 @Override 3685 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 3686 final IBinder response) { 3687 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 3688 if (!UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID)) { 3689 return; 3690 } 3691 3692 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 3693 // If there is a profile owner, redirect to that; otherwise query the device owner. 3694 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 3695 if (aliasChooser == null && caller.isSystem()) { 3696 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 3697 if (deviceOwnerAdmin != null) { 3698 aliasChooser = deviceOwnerAdmin.info.getComponent(); 3699 } 3700 } 3701 if (aliasChooser == null) { 3702 sendPrivateKeyAliasResponse(null, response); 3703 return; 3704 } 3705 3706 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 3707 intent.setComponent(aliasChooser); 3708 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 3709 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 3710 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 3711 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 3712 3713 final long id = mInjector.binderClearCallingIdentity(); 3714 try { 3715 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 3716 @Override 3717 public void onReceive(Context context, Intent intent) { 3718 final String chosenAlias = getResultData(); 3719 sendPrivateKeyAliasResponse(chosenAlias, response); 3720 } 3721 }, null, Activity.RESULT_OK, null, null); 3722 } finally { 3723 mInjector.binderRestoreCallingIdentity(id); 3724 } 3725 } 3726 3727 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 3728 final IKeyChainAliasCallback keyChainAliasResponse = 3729 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 3730 new AsyncTask<Void, Void, Void>() { 3731 @Override 3732 protected Void doInBackground(Void... unused) { 3733 try { 3734 keyChainAliasResponse.alias(alias); 3735 } catch (Exception e) { 3736 // Catch everything (not just RemoteException): caller could throw a 3737 // RuntimeException back across processes. 3738 Log.e(LOG_TAG, "error while responding to callback", e); 3739 } 3740 return null; 3741 } 3742 }.execute(); 3743 } 3744 3745 @Override 3746 public void setCertInstallerPackage(ComponentName who, String installerPackage) 3747 throws SecurityException { 3748 int userHandle = UserHandle.getCallingUserId(); 3749 synchronized (this) { 3750 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3751 DevicePolicyData policy = getUserData(userHandle); 3752 policy.mDelegatedCertInstallerPackage = installerPackage; 3753 saveSettingsLocked(userHandle); 3754 } 3755 } 3756 3757 @Override 3758 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 3759 int userHandle = UserHandle.getCallingUserId(); 3760 synchronized (this) { 3761 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3762 DevicePolicyData policy = getUserData(userHandle); 3763 return policy.mDelegatedCertInstallerPackage; 3764 } 3765 } 3766 3767 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 3768 if (wipeExtRequested) { 3769 StorageManager sm = (StorageManager) mContext.getSystemService( 3770 Context.STORAGE_SERVICE); 3771 sm.wipeAdoptableDisks(); 3772 } 3773 try { 3774 RecoverySystem.rebootWipeUserData(mContext, reason); 3775 } catch (IOException | SecurityException e) { 3776 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 3777 } 3778 } 3779 3780 @Override 3781 public void wipeData(int flags) { 3782 if (!mHasFeature) { 3783 return; 3784 } 3785 final int userHandle = mInjector.userHandleGetCallingUserId(); 3786 enforceCrossUserPermission(userHandle); 3787 synchronized (this) { 3788 // This API can only be called by an active device admin, 3789 // so try to retrieve it to check that the caller is one. 3790 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 3791 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3792 3793 final String source = admin.info.getComponent().flattenToShortString(); 3794 3795 long ident = mInjector.binderClearCallingIdentity(); 3796 try { 3797 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 3798 if (!isDeviceOwner(admin.info.getComponent(), userHandle)) { 3799 throw new SecurityException( 3800 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 3801 } 3802 PersistentDataBlockManager manager = (PersistentDataBlockManager) 3803 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 3804 if (manager != null) { 3805 manager.wipe(); 3806 } 3807 } 3808 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 3809 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 3810 "DevicePolicyManager.wipeData() from " + source); 3811 } finally { 3812 mInjector.binderRestoreCallingIdentity(ident); 3813 } 3814 } 3815 } 3816 3817 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 3818 if (userHandle == UserHandle.USER_SYSTEM) { 3819 wipeDataLocked(wipeExtRequested, reason); 3820 } else { 3821 mHandler.post(new Runnable() { 3822 @Override 3823 public void run() { 3824 try { 3825 IActivityManager am = mInjector.getIActivityManager(); 3826 if (am.getCurrentUser().id == userHandle) { 3827 am.switchUser(UserHandle.USER_SYSTEM); 3828 } 3829 3830 boolean isManagedProfile = isManagedProfile(userHandle); 3831 if (!mUserManager.removeUser(userHandle)) { 3832 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 3833 } else if (isManagedProfile) { 3834 sendWipeProfileNotification(); 3835 } 3836 } catch (RemoteException re) { 3837 // Shouldn't happen 3838 } 3839 } 3840 }); 3841 } 3842 } 3843 3844 private void sendWipeProfileNotification() { 3845 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 3846 Notification notification = new Notification.Builder(mContext) 3847 .setSmallIcon(android.R.drawable.stat_sys_warning) 3848 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 3849 .setContentText(contentText) 3850 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 3851 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 3852 .build(); 3853 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 3854 } 3855 3856 private void clearWipeProfileNotification() { 3857 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 3858 } 3859 3860 @Override 3861 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 3862 if (!mHasFeature) { 3863 return; 3864 } 3865 enforceCrossUserPermission(userHandle); 3866 mContext.enforceCallingOrSelfPermission( 3867 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3868 3869 synchronized (this) { 3870 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 3871 if (admin == null) { 3872 result.sendResult(null); 3873 return; 3874 } 3875 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3876 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3877 intent.setComponent(admin.info.getComponent()); 3878 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3879 null, new BroadcastReceiver() { 3880 @Override 3881 public void onReceive(Context context, Intent intent) { 3882 result.sendResult(getResultExtras(false)); 3883 } 3884 }, null, Activity.RESULT_OK, null, null); 3885 } 3886 } 3887 3888 @Override 3889 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3890 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3891 if (!mHasFeature) { 3892 return; 3893 } 3894 enforceCrossUserPermission(userHandle); 3895 // Managed Profile password can only be changed when per user encryption is present. 3896 if (!LockPatternUtils.isSeparateWorkChallengeEnabled()) { 3897 enforceNotManagedProfile(userHandle, "set the active password"); 3898 } 3899 3900 mContext.enforceCallingOrSelfPermission( 3901 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3902 validateQualityConstant(quality); 3903 3904 DevicePolicyData policy = getUserData(userHandle); 3905 3906 long ident = mInjector.binderClearCallingIdentity(); 3907 try { 3908 synchronized (this) { 3909 policy.mActivePasswordQuality = quality; 3910 policy.mActivePasswordLength = length; 3911 policy.mActivePasswordLetters = letters; 3912 policy.mActivePasswordLowerCase = lowercase; 3913 policy.mActivePasswordUpperCase = uppercase; 3914 policy.mActivePasswordNumeric = numbers; 3915 policy.mActivePasswordSymbols = symbols; 3916 policy.mActivePasswordNonLetter = nonletter; 3917 policy.mFailedPasswordAttempts = 0; 3918 saveSettingsLocked(userHandle); 3919 updatePasswordExpirationsLocked(userHandle); 3920 setExpirationAlarmCheckLocked(mContext, policy); 3921 3922 // Send a broadcast to each profile using this password as its primary unlock. 3923 if (LockPatternUtils.isSeparateWorkChallengeEnabled()) { 3924 sendAdminCommandLocked( 3925 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3926 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3927 } else { 3928 sendAdminCommandToSelfAndProfilesLocked( 3929 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3930 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3931 } 3932 } 3933 } finally { 3934 mInjector.binderRestoreCallingIdentity(ident); 3935 } 3936 } 3937 3938 /** 3939 * Called any time the device password is updated. Resets all password expiration clocks. 3940 */ 3941 private void updatePasswordExpirationsLocked(int userHandle) { 3942 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3943 for (UserInfo userInfo : profiles) { 3944 int profileId = userInfo.id; 3945 DevicePolicyData policy = getUserDataUnchecked(profileId); 3946 final int N = policy.mAdminList.size(); 3947 if (N > 0) { 3948 for (int i=0; i<N; i++) { 3949 ActiveAdmin admin = policy.mAdminList.get(i); 3950 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3951 long timeout = admin.passwordExpirationTimeout; 3952 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3953 admin.passwordExpirationDate = expiration; 3954 } 3955 } 3956 } 3957 saveSettingsLocked(profileId); 3958 } 3959 } 3960 3961 @Override 3962 public void reportFailedPasswordAttempt(int userHandle) { 3963 enforceCrossUserPermission(userHandle); 3964 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3965 mContext.enforceCallingOrSelfPermission( 3966 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3967 3968 long ident = mInjector.binderClearCallingIdentity(); 3969 try { 3970 boolean wipeData = false; 3971 int identifier = 0; 3972 synchronized (this) { 3973 DevicePolicyData policy = getUserData(userHandle); 3974 policy.mFailedPasswordAttempts++; 3975 saveSettingsLocked(userHandle); 3976 if (mHasFeature) { 3977 ActiveAdmin strictestAdmin = 3978 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3979 int max = strictestAdmin != null 3980 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3981 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 3982 // Wipe the user/profile associated with the policy that was violated. This 3983 // is not necessarily calling user: if the policy that fired was from a 3984 // managed profile rather than the main user profile, we wipe former only. 3985 wipeData = true; 3986 identifier = strictestAdmin.getUserHandle().getIdentifier(); 3987 } 3988 sendAdminCommandToSelfAndProfilesLocked( 3989 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 3990 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3991 } 3992 } 3993 if (wipeData) { 3994 // Call without holding lock. 3995 wipeDeviceOrUserLocked(false, identifier, 3996 "reportFailedPasswordAttempt()"); 3997 } 3998 } finally { 3999 mInjector.binderRestoreCallingIdentity(ident); 4000 } 4001 } 4002 4003 @Override 4004 public void reportSuccessfulPasswordAttempt(int userHandle) { 4005 enforceCrossUserPermission(userHandle); 4006 mContext.enforceCallingOrSelfPermission( 4007 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4008 4009 synchronized (this) { 4010 DevicePolicyData policy = getUserData(userHandle); 4011 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 4012 long ident = mInjector.binderClearCallingIdentity(); 4013 try { 4014 policy.mFailedPasswordAttempts = 0; 4015 policy.mPasswordOwner = -1; 4016 saveSettingsLocked(userHandle); 4017 if (mHasFeature) { 4018 sendAdminCommandToSelfAndProfilesLocked( 4019 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 4020 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4021 } 4022 } finally { 4023 mInjector.binderRestoreCallingIdentity(ident); 4024 } 4025 } 4026 } 4027 } 4028 4029 @Override 4030 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 4031 String exclusionList) { 4032 if (!mHasFeature) { 4033 return null; 4034 } 4035 synchronized(this) { 4036 Preconditions.checkNotNull(who, "ComponentName is null"); 4037 4038 // Only check if system user has set global proxy. We don't allow other users to set it. 4039 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4040 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4041 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 4042 4043 // Scan through active admins and find if anyone has already 4044 // set the global proxy. 4045 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 4046 for (ComponentName component : compSet) { 4047 ActiveAdmin ap = policy.mAdminMap.get(component); 4048 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 4049 // Another admin already sets the global proxy 4050 // Return it to the caller. 4051 return component; 4052 } 4053 } 4054 4055 // If the user is not system, don't set the global proxy. Fail silently. 4056 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 4057 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 4058 + UserHandle.getCallingUserId() + " is not permitted."); 4059 return null; 4060 } 4061 if (proxySpec == null) { 4062 admin.specifiesGlobalProxy = false; 4063 admin.globalProxySpec = null; 4064 admin.globalProxyExclusionList = null; 4065 } else { 4066 4067 admin.specifiesGlobalProxy = true; 4068 admin.globalProxySpec = proxySpec; 4069 admin.globalProxyExclusionList = exclusionList; 4070 } 4071 4072 // Reset the global proxy accordingly 4073 // Do this using system permissions, as apps cannot write to secure settings 4074 long origId = mInjector.binderClearCallingIdentity(); 4075 try { 4076 resetGlobalProxyLocked(policy); 4077 } finally { 4078 mInjector.binderRestoreCallingIdentity(origId); 4079 } 4080 return null; 4081 } 4082 } 4083 4084 @Override 4085 public ComponentName getGlobalProxyAdmin(int userHandle) { 4086 if (!mHasFeature) { 4087 return null; 4088 } 4089 enforceCrossUserPermission(userHandle); 4090 synchronized(this) { 4091 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4092 // Scan through active admins and find if anyone has already 4093 // set the global proxy. 4094 final int N = policy.mAdminList.size(); 4095 for (int i = 0; i < N; i++) { 4096 ActiveAdmin ap = policy.mAdminList.get(i); 4097 if (ap.specifiesGlobalProxy) { 4098 // Device admin sets the global proxy 4099 // Return it to the caller. 4100 return ap.info.getComponent(); 4101 } 4102 } 4103 } 4104 // No device admin sets the global proxy. 4105 return null; 4106 } 4107 4108 @Override 4109 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 4110 synchronized (this) { 4111 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4112 } 4113 long token = mInjector.binderClearCallingIdentity(); 4114 try { 4115 ConnectivityManager connectivityManager = (ConnectivityManager) 4116 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4117 connectivityManager.setGlobalProxy(proxyInfo); 4118 } finally { 4119 mInjector.binderRestoreCallingIdentity(token); 4120 } 4121 } 4122 4123 private void resetGlobalProxyLocked(DevicePolicyData policy) { 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 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 4129 return; 4130 } 4131 } 4132 // No device admins defining global proxies - reset global proxy settings to none 4133 saveGlobalProxyLocked(null, null); 4134 } 4135 4136 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 4137 if (exclusionList == null) { 4138 exclusionList = ""; 4139 } 4140 if (proxySpec == null) { 4141 proxySpec = ""; 4142 } 4143 // Remove white spaces 4144 proxySpec = proxySpec.trim(); 4145 String data[] = proxySpec.split(":"); 4146 int proxyPort = 8080; 4147 if (data.length > 1) { 4148 try { 4149 proxyPort = Integer.parseInt(data[1]); 4150 } catch (NumberFormatException e) {} 4151 } 4152 exclusionList = exclusionList.trim(); 4153 4154 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 4155 if (!proxyProperties.isValid()) { 4156 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 4157 return; 4158 } 4159 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 4160 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 4161 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 4162 exclusionList); 4163 } 4164 4165 /** 4166 * Set the storage encryption request for a single admin. Returns the new total request 4167 * status (for all admins). 4168 */ 4169 @Override 4170 public int setStorageEncryption(ComponentName who, boolean encrypt) { 4171 if (!mHasFeature) { 4172 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4173 } 4174 Preconditions.checkNotNull(who, "ComponentName is null"); 4175 final int userHandle = UserHandle.getCallingUserId(); 4176 synchronized (this) { 4177 // Check for permissions 4178 // Only system user can set storage encryption 4179 if (userHandle != UserHandle.USER_SYSTEM) { 4180 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 4181 + UserHandle.getCallingUserId() + " is not permitted."); 4182 return 0; 4183 } 4184 4185 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4186 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 4187 4188 // Quick exit: If the filesystem does not support encryption, we can exit early. 4189 if (!isEncryptionSupported()) { 4190 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4191 } 4192 4193 // (1) Record the value for the admin so it's sticky 4194 if (ap.encryptionRequested != encrypt) { 4195 ap.encryptionRequested = encrypt; 4196 saveSettingsLocked(userHandle); 4197 } 4198 4199 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4200 // (2) Compute "max" for all admins 4201 boolean newRequested = false; 4202 final int N = policy.mAdminList.size(); 4203 for (int i = 0; i < N; i++) { 4204 newRequested |= policy.mAdminList.get(i).encryptionRequested; 4205 } 4206 4207 // Notify OS of new request 4208 setEncryptionRequested(newRequested); 4209 4210 // Return the new global request status 4211 return newRequested 4212 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4213 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4214 } 4215 } 4216 4217 /** 4218 * Get the current storage encryption request status for a given admin, or aggregate of all 4219 * active admins. 4220 */ 4221 @Override 4222 public boolean getStorageEncryption(ComponentName who, int userHandle) { 4223 if (!mHasFeature) { 4224 return false; 4225 } 4226 enforceCrossUserPermission(userHandle); 4227 synchronized (this) { 4228 // Check for permissions if a particular caller is specified 4229 if (who != null) { 4230 // When checking for a single caller, status is based on caller's request 4231 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 4232 return ap != null ? ap.encryptionRequested : false; 4233 } 4234 4235 // If no particular caller is specified, return the aggregate set of requests. 4236 // This is short circuited by returning true on the first hit. 4237 DevicePolicyData policy = getUserData(userHandle); 4238 final int N = policy.mAdminList.size(); 4239 for (int i = 0; i < N; i++) { 4240 if (policy.mAdminList.get(i).encryptionRequested) { 4241 return true; 4242 } 4243 } 4244 return false; 4245 } 4246 } 4247 4248 /** 4249 * Get the current encryption status of the device. 4250 */ 4251 @Override 4252 public int getStorageEncryptionStatus(int userHandle) { 4253 if (!mHasFeature) { 4254 // Ok to return current status. 4255 } 4256 enforceCrossUserPermission(userHandle); 4257 return getEncryptionStatus(); 4258 } 4259 4260 /** 4261 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 4262 */ 4263 private boolean isEncryptionSupported() { 4264 // Note, this can be implemented as 4265 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4266 // But is provided as a separate internal method if there's a faster way to do a 4267 // simple check for supported-or-not. 4268 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4269 } 4270 4271 /** 4272 * Hook to low-levels: Reporting the current status of encryption. 4273 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 4274 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 4275 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, or 4276 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 4277 */ 4278 private int getEncryptionStatus() { 4279 String status = mInjector.systemPropertiesGet("ro.crypto.state", "unsupported"); 4280 if ("encrypted".equalsIgnoreCase(status)) { 4281 final long token = mInjector.binderClearCallingIdentity(); 4282 try { 4283 return LockPatternUtils.isDeviceEncrypted() 4284 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4285 : DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 4286 } finally { 4287 mInjector.binderRestoreCallingIdentity(token); 4288 } 4289 } else if ("unencrypted".equalsIgnoreCase(status)) { 4290 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4291 } else { 4292 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4293 } 4294 } 4295 4296 /** 4297 * Hook to low-levels: If needed, record the new admin setting for encryption. 4298 */ 4299 private void setEncryptionRequested(boolean encrypt) { 4300 } 4301 4302 4303 /** 4304 * Set whether the screen capture is disabled for the user managed by the specified admin. 4305 */ 4306 @Override 4307 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 4308 if (!mHasFeature) { 4309 return; 4310 } 4311 Preconditions.checkNotNull(who, "ComponentName is null"); 4312 final int userHandle = UserHandle.getCallingUserId(); 4313 synchronized (this) { 4314 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4315 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4316 if (ap.disableScreenCapture != disabled) { 4317 ap.disableScreenCapture = disabled; 4318 saveSettingsLocked(userHandle); 4319 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 4320 } 4321 } 4322 } 4323 4324 /** 4325 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 4326 * active admin (if given admin is null). 4327 */ 4328 @Override 4329 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 4330 if (!mHasFeature) { 4331 return false; 4332 } 4333 synchronized (this) { 4334 if (who != null) { 4335 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4336 return (admin != null) ? admin.disableScreenCapture : false; 4337 } 4338 4339 DevicePolicyData policy = getUserData(userHandle); 4340 final int N = policy.mAdminList.size(); 4341 for (int i = 0; i < N; i++) { 4342 ActiveAdmin admin = policy.mAdminList.get(i); 4343 if (admin.disableScreenCapture) { 4344 return true; 4345 } 4346 } 4347 return false; 4348 } 4349 } 4350 4351 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 4352 final boolean disabled) { 4353 mHandler.post(new Runnable() { 4354 @Override 4355 public void run() { 4356 try { 4357 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 4358 } catch (RemoteException e) { 4359 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 4360 } 4361 } 4362 }); 4363 } 4364 4365 /** 4366 * Set whether auto time is required by the specified admin (must be device owner). 4367 */ 4368 @Override 4369 public void setAutoTimeRequired(ComponentName who, boolean required) { 4370 if (!mHasFeature) { 4371 return; 4372 } 4373 Preconditions.checkNotNull(who, "ComponentName is null"); 4374 final int userHandle = UserHandle.getCallingUserId(); 4375 synchronized (this) { 4376 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4377 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4378 if (admin.requireAutoTime != required) { 4379 admin.requireAutoTime = required; 4380 saveSettingsLocked(userHandle); 4381 } 4382 } 4383 4384 // Turn AUTO_TIME on in settings if it is required 4385 if (required) { 4386 long ident = mInjector.binderClearCallingIdentity(); 4387 try { 4388 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 4389 } finally { 4390 mInjector.binderRestoreCallingIdentity(ident); 4391 } 4392 } 4393 } 4394 4395 /** 4396 * Returns whether or not auto time is required by the device owner. 4397 */ 4398 @Override 4399 public boolean getAutoTimeRequired() { 4400 if (!mHasFeature) { 4401 return false; 4402 } 4403 synchronized (this) { 4404 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4405 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 4406 } 4407 } 4408 4409 /** 4410 * Disables all device cameras according to the specified admin. 4411 */ 4412 @Override 4413 public void setCameraDisabled(ComponentName who, boolean disabled) { 4414 if (!mHasFeature) { 4415 return; 4416 } 4417 Preconditions.checkNotNull(who, "ComponentName is null"); 4418 final int userHandle = mInjector.userHandleGetCallingUserId(); 4419 synchronized (this) { 4420 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4421 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 4422 if (ap.disableCamera != disabled) { 4423 ap.disableCamera = disabled; 4424 saveSettingsLocked(userHandle); 4425 } 4426 } 4427 // Tell the user manager that the restrictions have changed. 4428 pushUserRestrictions(userHandle); 4429 } 4430 4431 /** 4432 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 4433 * active admins. 4434 */ 4435 @Override 4436 public boolean getCameraDisabled(ComponentName who, int userHandle) { 4437 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 4438 } 4439 4440 private boolean getCameraDisabled(ComponentName who, int userHandle, 4441 boolean mergeDeviceOwnerRestriction) { 4442 if (!mHasFeature) { 4443 return false; 4444 } 4445 synchronized (this) { 4446 if (who != null) { 4447 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4448 return (admin != null) ? admin.disableCamera : false; 4449 } 4450 // First, see if DO has set it. If so, it's device-wide. 4451 if (mergeDeviceOwnerRestriction) { 4452 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4453 if (deviceOwner != null && deviceOwner.disableCamera) { 4454 return true; 4455 } 4456 } 4457 4458 // Then check each device admin on the user. 4459 DevicePolicyData policy = getUserData(userHandle); 4460 // Determine whether or not the device camera is disabled for any active admins. 4461 final int N = policy.mAdminList.size(); 4462 for (int i = 0; i < N; i++) { 4463 ActiveAdmin admin = policy.mAdminList.get(i); 4464 if (admin.disableCamera) { 4465 return true; 4466 } 4467 } 4468 return false; 4469 } 4470 } 4471 4472 /** 4473 * Selectively disable keyguard features. 4474 */ 4475 @Override 4476 public void setKeyguardDisabledFeatures(ComponentName who, int which) { 4477 if (!mHasFeature) { 4478 return; 4479 } 4480 Preconditions.checkNotNull(who, "ComponentName is null"); 4481 final int userHandle = UserHandle.getCallingUserId(); 4482 if (isManagedProfile(userHandle)) { 4483 which = which & PROFILE_KEYGUARD_FEATURES; 4484 } 4485 synchronized (this) { 4486 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4487 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4488 if (ap.disabledKeyguardFeatures != which) { 4489 ap.disabledKeyguardFeatures = which; 4490 saveSettingsLocked(userHandle); 4491 } 4492 } 4493 } 4494 4495 /** 4496 * Gets the disabled state for features in keyguard for the given admin, 4497 * or the aggregate of all active admins if who is null. 4498 */ 4499 @Override 4500 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 4501 if (!mHasFeature) { 4502 return 0; 4503 } 4504 enforceCrossUserPermission(userHandle); 4505 long ident = mInjector.binderClearCallingIdentity(); 4506 try { 4507 synchronized (this) { 4508 if (who != null) { 4509 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4510 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 4511 } 4512 4513 UserInfo user = mUserManager.getUserInfo(userHandle); 4514 final List<UserInfo> profiles; 4515 if (user.isManagedProfile() || LockPatternUtils.isSeparateWorkChallengeEnabled()) { 4516 // If we are being asked about a managed profile or the main user profile has a 4517 // separate lock from the work profile, just return keyguard features disabled 4518 // by admins in the profile. 4519 profiles = Collections.singletonList(user); 4520 } else { 4521 // Otherwise return those set by admins in the user 4522 // and its profiles. 4523 profiles = mUserManager.getProfiles(userHandle); 4524 } 4525 4526 // Determine which keyguard features are disabled by any active admin. 4527 int which = 0; 4528 for (UserInfo userInfo : profiles) { 4529 DevicePolicyData policy = getUserData(userInfo.id); 4530 final int N = policy.mAdminList.size(); 4531 for (int i = 0; i < N; i++) { 4532 ActiveAdmin admin = policy.mAdminList.get(i); 4533 if (userInfo.id == userHandle || !userInfo.isManagedProfile()) { 4534 // If we are being asked explictly about this user 4535 // return all disabled features even if its a managed profile. 4536 which |= admin.disabledKeyguardFeatures; 4537 } else { 4538 // Otherwise a managed profile is only allowed to disable 4539 // some features on the parent user. 4540 which |= (admin.disabledKeyguardFeatures 4541 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 4542 } 4543 } 4544 } 4545 return which; 4546 } 4547 } finally { 4548 mInjector.binderRestoreCallingIdentity(ident); 4549 } 4550 } 4551 4552 @Override 4553 public void setKeepUninstalledPackages(ComponentName who, List<String> packageList) { 4554 if (!mHasFeature) { 4555 return; 4556 } 4557 Preconditions.checkNotNull(who, "ComponentName is null"); 4558 Preconditions.checkNotNull(packageList, "packageList is null"); 4559 final int userHandle = UserHandle.getCallingUserId(); 4560 synchronized (this) { 4561 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4562 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4563 admin.keepUninstalledPackages = packageList; 4564 saveSettingsLocked(userHandle); 4565 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 4566 } 4567 } 4568 4569 @Override 4570 public List<String> getKeepUninstalledPackages(ComponentName who) { 4571 Preconditions.checkNotNull(who, "ComponentName is null"); 4572 if (!mHasFeature) { 4573 return null; 4574 } 4575 // TODO In split system user mode, allow apps on user 0 to query the list 4576 synchronized (this) { 4577 // Check if this is the device owner who is calling 4578 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4579 return getKeepUninstalledPackagesLocked(); 4580 } 4581 } 4582 4583 private List<String> getKeepUninstalledPackagesLocked() { 4584 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4585 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 4586 } 4587 4588 @Override 4589 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 4590 if (!mHasFeature) { 4591 return false; 4592 } 4593 if (admin == null 4594 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 4595 throw new IllegalArgumentException("Invalid component " + admin 4596 + " for device owner"); 4597 } 4598 synchronized (this) { 4599 enforceCanSetDeviceOwnerLocked(userId); 4600 4601 // Shutting down backup manager service permanently. 4602 long ident = mInjector.binderClearCallingIdentity(); 4603 try { 4604 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, false); 4605 } catch (RemoteException e) { 4606 throw new IllegalStateException("Failed deactivating backup service.", e); 4607 } finally { 4608 mInjector.binderRestoreCallingIdentity(ident); 4609 } 4610 4611 mOwners.setDeviceOwner(admin, ownerName, userId); 4612 mOwners.writeDeviceOwner(); 4613 updateDeviceOwnerLocked(); 4614 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 4615 4616 ident = mInjector.binderClearCallingIdentity(); 4617 try { 4618 // TODO Send to system too? 4619 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 4620 } finally { 4621 mInjector.binderRestoreCallingIdentity(ident); 4622 } 4623 return true; 4624 } 4625 } 4626 4627 public boolean isDeviceOwner(ComponentName who, int userId) { 4628 synchronized (this) { 4629 return mOwners.hasDeviceOwner() 4630 && mOwners.getDeviceOwnerUserId() == userId 4631 && mOwners.getDeviceOwnerComponent().equals(who); 4632 } 4633 } 4634 4635 public boolean isProfileOwner(ComponentName who, int userId) { 4636 final ComponentName profileOwner = getProfileOwner(userId); 4637 return who != null && who.equals(profileOwner); 4638 } 4639 4640 @Override 4641 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 4642 if (!mHasFeature) { 4643 return null; 4644 } 4645 if (!callingUserOnly) { 4646 enforceManageUsers(); 4647 } 4648 synchronized (this) { 4649 if (!mOwners.hasDeviceOwner()) { 4650 return null; 4651 } 4652 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 4653 mOwners.getDeviceOwnerUserId()) { 4654 return null; 4655 } 4656 return mOwners.getDeviceOwnerComponent(); 4657 } 4658 } 4659 4660 @Override 4661 public int getDeviceOwnerUserId() { 4662 if (!mHasFeature) { 4663 return UserHandle.USER_NULL; 4664 } 4665 enforceManageUsers(); 4666 synchronized (this) { 4667 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 4668 } 4669 } 4670 4671 /** 4672 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 4673 * MANAGE_USERS. 4674 */ 4675 @Override 4676 public String getDeviceOwnerName() { 4677 if (!mHasFeature) { 4678 return null; 4679 } 4680 enforceManageUsers(); 4681 synchronized (this) { 4682 if (!mOwners.hasDeviceOwner()) { 4683 return null; 4684 } 4685 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 4686 // Should setDeviceOwner/ProfileOwner still take a name? 4687 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 4688 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 4689 } 4690 } 4691 4692 // Returns the active device owner or null if there is no device owner. 4693 @VisibleForTesting 4694 ActiveAdmin getDeviceOwnerAdminLocked() { 4695 ComponentName component = mOwners.getDeviceOwnerComponent(); 4696 if (component == null) { 4697 return null; 4698 } 4699 4700 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 4701 final int n = policy.mAdminList.size(); 4702 for (int i = 0; i < n; i++) { 4703 ActiveAdmin admin = policy.mAdminList.get(i); 4704 if (component.equals(admin.info.getComponent())) { 4705 return admin; 4706 } 4707 } 4708 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 4709 return null; 4710 } 4711 4712 @Override 4713 public void clearDeviceOwner(String packageName) { 4714 Preconditions.checkNotNull(packageName, "packageName is null"); 4715 final int callingUid = mInjector.binderGetCallingUid(); 4716 try { 4717 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 4718 if (uid != callingUid) { 4719 throw new SecurityException("Invalid packageName"); 4720 } 4721 } catch (NameNotFoundException e) { 4722 throw new SecurityException(e); 4723 } 4724 synchronized (this) { 4725 if (!mOwners.hasDeviceOwner() 4726 || !mOwners.getDeviceOwnerComponent().getPackageName().equals(packageName) 4727 || (mOwners.getDeviceOwnerUserId() != UserHandle.getUserId(callingUid))) { 4728 throw new SecurityException( 4729 "clearDeviceOwner can only be called by the device owner"); 4730 } 4731 4732 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 4733 if (admin != null) { 4734 admin.disableCamera = false; 4735 admin.userRestrictions = null; 4736 } 4737 4738 clearUserPoliciesLocked(new UserHandle(UserHandle.USER_SYSTEM)); 4739 4740 mOwners.clearDeviceOwner(); 4741 mOwners.writeDeviceOwner(); 4742 updateDeviceOwnerLocked(); 4743 // Reactivate backup service. 4744 long ident = mInjector.binderClearCallingIdentity(); 4745 try { 4746 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 4747 } catch (RemoteException e) { 4748 throw new IllegalStateException("Failed reactivating backup service.", e); 4749 } finally { 4750 mInjector.binderRestoreCallingIdentity(ident); 4751 } 4752 } 4753 } 4754 4755 @Override 4756 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 4757 if (!mHasFeature) { 4758 return false; 4759 } 4760 if (who == null 4761 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 4762 throw new IllegalArgumentException("Component " + who 4763 + " not installed for userId:" + userHandle); 4764 } 4765 synchronized (this) { 4766 enforceCanSetProfileOwnerLocked(userHandle); 4767 mOwners.setProfileOwner(who, ownerName, userHandle); 4768 mOwners.writeProfileOwner(userHandle); 4769 return true; 4770 } 4771 } 4772 4773 @Override 4774 public void clearProfileOwner(ComponentName who) { 4775 if (!mHasFeature) { 4776 return; 4777 } 4778 UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 4779 // Check if this is the profile owner who is calling 4780 final ActiveAdmin admin = 4781 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4782 synchronized (this) { 4783 admin.disableCamera = false; 4784 admin.userRestrictions = null; 4785 clearUserPoliciesLocked(callingUser); 4786 final int userId = callingUser.getIdentifier(); 4787 mOwners.removeProfileOwner(userId); 4788 mOwners.writeProfileOwner(userId); 4789 } 4790 } 4791 4792 @Override 4793 public boolean setDeviceOwnerLockScreenInfo(ComponentName who, String info) { 4794 Preconditions.checkNotNull(who, "ComponentName is null"); 4795 if (!mHasFeature) { 4796 return false; 4797 } 4798 4799 synchronized (this) { 4800 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4801 long token = mInjector.binderClearCallingIdentity(); 4802 try { 4803 new LockPatternUtils(mContext).setDeviceOwnerInfo(info); 4804 } finally { 4805 mInjector.binderRestoreCallingIdentity(token); 4806 } 4807 return true; 4808 } 4809 } 4810 4811 @Override 4812 public String getDeviceOwnerLockScreenInfo() { 4813 return new LockPatternUtils(mContext).getDeviceOwnerInfo(); 4814 } 4815 4816 private void clearUserPoliciesLocked(UserHandle userHandle) { 4817 int userId = userHandle.getIdentifier(); 4818 // Reset some of the user-specific policies 4819 DevicePolicyData policy = getUserData(userId); 4820 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 4821 policy.mDelegatedCertInstallerPackage = null; 4822 policy.mStatusBarDisabled = false; 4823 saveSettingsLocked(userId); 4824 4825 final long ident = mInjector.binderClearCallingIdentity(); 4826 try { 4827 mIPackageManager.updatePermissionFlagsForAllApps( 4828 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 4829 0 /* flagValues */, userHandle.getIdentifier()); 4830 pushUserRestrictions(userHandle.getIdentifier()); 4831 } catch (RemoteException re) { 4832 } finally { 4833 mInjector.binderRestoreCallingIdentity(ident); 4834 } 4835 } 4836 4837 @Override 4838 public boolean hasUserSetupCompleted() { 4839 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 4840 } 4841 4842 private boolean hasUserSetupCompleted(int userHandle) { 4843 if (!mHasFeature) { 4844 return true; 4845 } 4846 return getUserData(userHandle).mUserSetupComplete; 4847 } 4848 4849 @Override 4850 public void setProfileEnabled(ComponentName who) { 4851 if (!mHasFeature) { 4852 return; 4853 } 4854 Preconditions.checkNotNull(who, "ComponentName is null"); 4855 final int userHandle = UserHandle.getCallingUserId(); 4856 synchronized (this) { 4857 // Check if this is the profile owner who is calling 4858 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4859 int userId = UserHandle.getCallingUserId(); 4860 4861 long id = mInjector.binderClearCallingIdentity(); 4862 try { 4863 mUserManager.setUserEnabled(userId); 4864 UserInfo parent = mUserManager.getProfileParent(userId); 4865 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 4866 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 4867 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 4868 Intent.FLAG_RECEIVER_FOREGROUND); 4869 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 4870 } finally { 4871 mInjector.binderRestoreCallingIdentity(id); 4872 } 4873 } 4874 } 4875 4876 @Override 4877 public void setProfileName(ComponentName who, String profileName) { 4878 Preconditions.checkNotNull(who, "ComponentName is null"); 4879 int userId = UserHandle.getCallingUserId(); 4880 // Check if this is the profile owner (includes device owner). 4881 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4882 4883 long id = mInjector.binderClearCallingIdentity(); 4884 try { 4885 mUserManager.setUserName(userId, profileName); 4886 } finally { 4887 mInjector.binderRestoreCallingIdentity(id); 4888 } 4889 } 4890 4891 @Override 4892 public ComponentName getProfileOwner(int userHandle) { 4893 if (!mHasFeature) { 4894 return null; 4895 } 4896 4897 synchronized (this) { 4898 return mOwners.getProfileOwnerComponent(userHandle); 4899 } 4900 } 4901 4902 // Returns the active profile owner for this user or null if the current user has no 4903 // profile owner. 4904 @VisibleForTesting 4905 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 4906 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 4907 if (profileOwner == null) { 4908 return null; 4909 } 4910 DevicePolicyData policy = getUserData(userHandle); 4911 final int n = policy.mAdminList.size(); 4912 for (int i = 0; i < n; i++) { 4913 ActiveAdmin admin = policy.mAdminList.get(i); 4914 if (profileOwner.equals(admin.info.getComponent())) { 4915 return admin; 4916 } 4917 } 4918 return null; 4919 } 4920 4921 @Override 4922 public String getProfileOwnerName(int userHandle) { 4923 if (!mHasFeature) { 4924 return null; 4925 } 4926 enforceManageUsers(); 4927 ComponentName profileOwner = getProfileOwner(userHandle); 4928 if (profileOwner == null) { 4929 return null; 4930 } 4931 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 4932 } 4933 4934 /** 4935 * Canonical name for a given package. 4936 */ 4937 private String getApplicationLabel(String packageName, int userHandle) { 4938 long token = mInjector.binderClearCallingIdentity(); 4939 try { 4940 final Context userContext; 4941 try { 4942 UserHandle handle = new UserHandle(userHandle); 4943 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 4944 } catch (PackageManager.NameNotFoundException nnfe) { 4945 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 4946 return null; 4947 } 4948 ApplicationInfo appInfo = userContext.getApplicationInfo(); 4949 CharSequence result = null; 4950 if (appInfo != null) { 4951 PackageManager pm = userContext.getPackageManager(); 4952 result = pm.getApplicationLabel(appInfo); 4953 } 4954 return result != null ? result.toString() : null; 4955 } finally { 4956 mInjector.binderRestoreCallingIdentity(token); 4957 } 4958 } 4959 4960 /** 4961 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4962 * permission. 4963 * The profile owner can only be set before the user setup phase has completed, 4964 * except for: 4965 * - SYSTEM_UID 4966 * - adb if there are not accounts. 4967 */ 4968 private void enforceCanSetProfileOwnerLocked(int userHandle) { 4969 UserInfo info = mUserManager.getUserInfo(userHandle); 4970 if (info == null) { 4971 // User doesn't exist. 4972 throw new IllegalArgumentException( 4973 "Attempted to set profile owner for invalid userId: " + userHandle); 4974 } 4975 if (info.isGuest()) { 4976 throw new IllegalStateException("Cannot set a profile owner on a guest"); 4977 } 4978 if (mOwners.hasProfileOwner(userHandle)) { 4979 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 4980 + "is already set."); 4981 } 4982 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 4983 throw new IllegalStateException("Trying to set the profile owner, but the user " 4984 + "already has a device owner."); 4985 } 4986 int callingUid = mInjector.binderGetCallingUid(); 4987 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 4988 if (hasUserSetupCompleted(userHandle) && 4989 AccountManager.get(mContext).getAccountsAsUser(userHandle).length > 0) { 4990 throw new IllegalStateException("Not allowed to set the profile owner because " 4991 + "there are already some accounts on the profile"); 4992 } 4993 return; 4994 } 4995 mContext.enforceCallingOrSelfPermission( 4996 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 4997 if (hasUserSetupCompleted(userHandle) 4998 && !UserHandle.isSameApp(callingUid, Process.SYSTEM_UID)) { 4999 throw new IllegalStateException("Cannot set the profile owner on a user which is " 5000 + "already set-up"); 5001 } 5002 } 5003 5004 /** 5005 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 5006 * permission. 5007 * The device owner can only be set before the setup phase of the primary user has completed, 5008 * except for adb if no accounts or additional users are present on the device. 5009 */ 5010 private void enforceCanSetDeviceOwnerLocked(int userId) { 5011 if (mOwners.hasDeviceOwner()) { 5012 throw new IllegalStateException("Trying to set the device owner, but device owner " 5013 + "is already set."); 5014 } 5015 if (mOwners.hasProfileOwner(userId)) { 5016 throw new IllegalStateException("Trying to set the device owner, but the user already " 5017 + "has a profile owner."); 5018 } 5019 if (!mUserManager.isUserRunning(new UserHandle(userId))) { 5020 throw new IllegalStateException("User not running: " + userId); 5021 } 5022 5023 int callingUid = mInjector.binderGetCallingUid(); 5024 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 5025 if (!hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 5026 return; 5027 } 5028 // STOPSHIP Do proper check in split user mode 5029 if (!mInjector.userManagerIsSplitSystemUser()) { 5030 if (mUserManager.getUserCount() > 1) { 5031 throw new IllegalStateException( 5032 "Not allowed to set the device owner because there " 5033 + "are already several users on the device"); 5034 } 5035 if (AccountManager.get(mContext).getAccounts().length > 0) { 5036 throw new IllegalStateException( 5037 "Not allowed to set the device owner because there " 5038 + "are already some accounts on the device"); 5039 } 5040 } 5041 return; 5042 } 5043 // STOPSHIP check the caller UID with userId 5044 5045 mContext.enforceCallingOrSelfPermission( 5046 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 5047 // STOPSHIP Do proper check in split user mode 5048 if (!mInjector.userManagerIsSplitSystemUser()) { 5049 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 5050 throw new IllegalStateException("Cannot set the device owner if the device is " 5051 + "already set-up"); 5052 } 5053 } 5054 } 5055 5056 private void enforceManageUsers() { 5057 final int callingUid = mInjector.binderGetCallingUid(); 5058 if (!(UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 5059 || callingUid == Process.ROOT_UID)) { 5060 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 5061 } 5062 } 5063 5064 private void enforceCrossUserPermission(int userHandle) { 5065 if (userHandle < 0) { 5066 throw new IllegalArgumentException("Invalid userId " + userHandle); 5067 } 5068 final int callingUid = mInjector.binderGetCallingUid(); 5069 if (userHandle == UserHandle.getUserId(callingUid)) return; 5070 if (!(UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 5071 || callingUid == Process.ROOT_UID)) { 5072 mContext.enforceCallingOrSelfPermission( 5073 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 5074 + " INTERACT_ACROSS_USERS_FULL permission"); 5075 } 5076 } 5077 5078 private void enforceNotManagedProfile(int userHandle, String message) { 5079 if(isManagedProfile(userHandle)) { 5080 throw new SecurityException("You can not " + message + " for a managed profile. "); 5081 } 5082 } 5083 5084 private int getCredentialOwner(int userHandle) { 5085 long ident = mInjector.binderClearCallingIdentity(); 5086 try { 5087 return mUserManager.getCredentialOwnerProfile(userHandle); 5088 } finally { 5089 mInjector.binderRestoreCallingIdentity(ident); 5090 } 5091 } 5092 5093 private boolean isManagedProfile(int userHandle) { 5094 long ident = mInjector.binderClearCallingIdentity(); 5095 try { 5096 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 5097 } finally { 5098 mInjector.binderRestoreCallingIdentity(ident); 5099 } 5100 } 5101 5102 private void enableIfNecessary(String packageName, int userId) { 5103 try { 5104 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 5105 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 5106 userId); 5107 if (ai.enabledSetting 5108 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 5109 mIPackageManager.setApplicationEnabledSetting(packageName, 5110 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 5111 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 5112 } 5113 } catch (RemoteException e) { 5114 } 5115 } 5116 5117 @Override 5118 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 5119 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 5120 != PackageManager.PERMISSION_GRANTED) { 5121 5122 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 5123 + mInjector.binderGetCallingPid() 5124 + ", uid=" + mInjector.binderGetCallingUid()); 5125 return; 5126 } 5127 5128 synchronized (this) { 5129 pw.println("Current Device Policy Manager state:"); 5130 mOwners.dump(" ", pw); 5131 int userCount = mUserData.size(); 5132 for (int u = 0; u < userCount; u++) { 5133 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 5134 pw.println(); 5135 pw.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 5136 final int N = policy.mAdminList.size(); 5137 for (int i=0; i<N; i++) { 5138 ActiveAdmin ap = policy.mAdminList.get(i); 5139 if (ap != null) { 5140 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 5141 pw.println(":"); 5142 ap.dump(" ", pw); 5143 } 5144 } 5145 if (!policy.mRemovingAdmins.isEmpty()) { 5146 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 5147 + policy.mRemovingAdmins); 5148 } 5149 5150 pw.println(" "); 5151 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 5152 } 5153 } 5154 } 5155 5156 @Override 5157 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 5158 ComponentName activity) { 5159 Preconditions.checkNotNull(who, "ComponentName is null"); 5160 final int userHandle = UserHandle.getCallingUserId(); 5161 synchronized (this) { 5162 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5163 5164 long id = mInjector.binderClearCallingIdentity(); 5165 try { 5166 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 5167 } catch (RemoteException re) { 5168 // Shouldn't happen 5169 } finally { 5170 mInjector.binderRestoreCallingIdentity(id); 5171 } 5172 } 5173 } 5174 5175 @Override 5176 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 5177 Preconditions.checkNotNull(who, "ComponentName is null"); 5178 final int userHandle = UserHandle.getCallingUserId(); 5179 synchronized (this) { 5180 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5181 5182 long id = mInjector.binderClearCallingIdentity(); 5183 try { 5184 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 5185 } catch (RemoteException re) { 5186 // Shouldn't happen 5187 } finally { 5188 mInjector.binderRestoreCallingIdentity(id); 5189 } 5190 } 5191 } 5192 5193 @Override 5194 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 5195 Preconditions.checkNotNull(who, "ComponentName is null"); 5196 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5197 synchronized (this) { 5198 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5199 5200 long id = mInjector.binderClearCallingIdentity(); 5201 try { 5202 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 5203 } finally { 5204 mInjector.binderRestoreCallingIdentity(id); 5205 } 5206 } 5207 } 5208 5209 @Override 5210 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 5211 PersistableBundle args) { 5212 if (!mHasFeature) { 5213 return; 5214 } 5215 Preconditions.checkNotNull(admin, "admin is null"); 5216 Preconditions.checkNotNull(agent, "agent is null"); 5217 final int userHandle = UserHandle.getCallingUserId(); 5218 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 5219 synchronized (this) { 5220 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 5221 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 5222 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 5223 saveSettingsLocked(userHandle); 5224 } 5225 } 5226 5227 @Override 5228 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 5229 ComponentName agent, int userHandle) { 5230 if (!mHasFeature) { 5231 return null; 5232 } 5233 Preconditions.checkNotNull(agent, "agent null"); 5234 enforceCrossUserPermission(userHandle); 5235 5236 synchronized (this) { 5237 final String componentName = agent.flattenToString(); 5238 if (admin != null) { 5239 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 5240 if (ap == null) return null; 5241 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 5242 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 5243 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 5244 result.add(trustAgentInfo.options); 5245 return result; 5246 } 5247 5248 // Return strictest policy for this user and profiles that are visible from this user. 5249 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 5250 List<PersistableBundle> result = null; 5251 5252 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 5253 // of the options. If any admin doesn't have options, discard options for the rest 5254 // and return null. 5255 boolean allAdminsHaveOptions = true; 5256 for (UserInfo userInfo : profiles) { 5257 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 5258 final int N = policy.mAdminList.size(); 5259 for (int i=0; i < N; i++) { 5260 final ActiveAdmin active = policy.mAdminList.get(i); 5261 final boolean disablesTrust = (active.disabledKeyguardFeatures 5262 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 5263 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 5264 if (info != null && info.options != null && !info.options.isEmpty()) { 5265 if (disablesTrust) { 5266 if (result == null) { 5267 result = new ArrayList<PersistableBundle>(); 5268 } 5269 result.add(info.options); 5270 } else { 5271 Log.w(LOG_TAG, "Ignoring admin " + active.info 5272 + " because it has trust options but doesn't declare " 5273 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 5274 } 5275 } else if (disablesTrust) { 5276 allAdminsHaveOptions = false; 5277 break; 5278 } 5279 } 5280 } 5281 return allAdminsHaveOptions ? result : null; 5282 } 5283 } 5284 5285 @Override 5286 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 5287 Preconditions.checkNotNull(who, "ComponentName is null"); 5288 synchronized (this) { 5289 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5290 5291 int userHandle = UserHandle.getCallingUserId(); 5292 DevicePolicyData userData = getUserData(userHandle); 5293 userData.mRestrictionsProvider = permissionProvider; 5294 saveSettingsLocked(userHandle); 5295 } 5296 } 5297 5298 @Override 5299 public ComponentName getRestrictionsProvider(int userHandle) { 5300 synchronized (this) { 5301 if (!UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID)) { 5302 throw new SecurityException("Only the system can query the permission provider"); 5303 } 5304 DevicePolicyData userData = getUserData(userHandle); 5305 return userData != null ? userData.mRestrictionsProvider : null; 5306 } 5307 } 5308 5309 @Override 5310 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 5311 Preconditions.checkNotNull(who, "ComponentName is null"); 5312 int callingUserId = UserHandle.getCallingUserId(); 5313 synchronized (this) { 5314 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5315 5316 long id = mInjector.binderClearCallingIdentity(); 5317 try { 5318 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5319 if (parent == null) { 5320 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 5321 + "parent"); 5322 return; 5323 } 5324 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 5325 mIPackageManager.addCrossProfileIntentFilter( 5326 filter, who.getPackageName(), callingUserId, parent.id, 0); 5327 } 5328 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 5329 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 5330 parent.id, callingUserId, 0); 5331 } 5332 } catch (RemoteException re) { 5333 // Shouldn't happen 5334 } finally { 5335 mInjector.binderRestoreCallingIdentity(id); 5336 } 5337 } 5338 } 5339 5340 @Override 5341 public void clearCrossProfileIntentFilters(ComponentName who) { 5342 Preconditions.checkNotNull(who, "ComponentName is null"); 5343 int callingUserId = UserHandle.getCallingUserId(); 5344 synchronized (this) { 5345 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5346 long id = mInjector.binderClearCallingIdentity(); 5347 try { 5348 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5349 if (parent == null) { 5350 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 5351 + "parent"); 5352 return; 5353 } 5354 // Removing those that go from the managed profile to the parent. 5355 mIPackageManager.clearCrossProfileIntentFilters( 5356 callingUserId, who.getPackageName()); 5357 // And those that go from the parent to the managed profile. 5358 // If we want to support multiple managed profiles, we will have to only remove 5359 // those that have callingUserId as their target. 5360 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 5361 } catch (RemoteException re) { 5362 // Shouldn't happen 5363 } finally { 5364 mInjector.binderRestoreCallingIdentity(id); 5365 } 5366 } 5367 } 5368 5369 /** 5370 * @return true if all packages in enabledPackages are either in the list 5371 * permittedList or are a system app. 5372 */ 5373 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 5374 List<String> permittedList) { 5375 int userIdToCheck = UserHandle.getCallingUserId(); 5376 long id = mInjector.binderClearCallingIdentity(); 5377 try { 5378 // If we have an enabled packages list for a managed profile the packages 5379 // we should check are installed for the parent user. 5380 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 5381 if (user.isManagedProfile()) { 5382 userIdToCheck = user.profileGroupId; 5383 } 5384 5385 for (String enabledPackage : enabledPackages) { 5386 boolean systemService = false; 5387 try { 5388 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 5389 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 5390 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5391 } catch (RemoteException e) { 5392 Log.i(LOG_TAG, "Can't talk to package managed", e); 5393 } 5394 if (!systemService && !permittedList.contains(enabledPackage)) { 5395 return false; 5396 } 5397 } 5398 } finally { 5399 mInjector.binderRestoreCallingIdentity(id); 5400 } 5401 return true; 5402 } 5403 5404 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 5405 // Not using AccessibilityManager.getInstance because that guesses 5406 // at the user you require based on callingUid and caches for a given 5407 // process. 5408 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 5409 IAccessibilityManager service = iBinder == null 5410 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 5411 return new AccessibilityManager(mContext, service, userId); 5412 } 5413 5414 @Override 5415 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 5416 if (!mHasFeature) { 5417 return false; 5418 } 5419 Preconditions.checkNotNull(who, "ComponentName is null"); 5420 5421 if (packageList != null) { 5422 int userId = UserHandle.getCallingUserId(); 5423 List<AccessibilityServiceInfo> enabledServices = null; 5424 long id = mInjector.binderClearCallingIdentity(); 5425 try { 5426 UserInfo user = mUserManager.getUserInfo(userId); 5427 if (user.isManagedProfile()) { 5428 userId = user.profileGroupId; 5429 } 5430 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 5431 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 5432 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 5433 } finally { 5434 mInjector.binderRestoreCallingIdentity(id); 5435 } 5436 5437 if (enabledServices != null) { 5438 List<String> enabledPackages = new ArrayList<String>(); 5439 for (AccessibilityServiceInfo service : enabledServices) { 5440 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 5441 } 5442 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5443 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 5444 + "because it contains already enabled accesibility services."); 5445 return false; 5446 } 5447 } 5448 } 5449 5450 synchronized (this) { 5451 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5452 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5453 admin.permittedAccessiblityServices = packageList; 5454 saveSettingsLocked(UserHandle.getCallingUserId()); 5455 } 5456 return true; 5457 } 5458 5459 @Override 5460 public List getPermittedAccessibilityServices(ComponentName who) { 5461 if (!mHasFeature) { 5462 return null; 5463 } 5464 Preconditions.checkNotNull(who, "ComponentName is null"); 5465 5466 synchronized (this) { 5467 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5468 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5469 return admin.permittedAccessiblityServices; 5470 } 5471 } 5472 5473 @Override 5474 public List getPermittedAccessibilityServicesForUser(int userId) { 5475 if (!mHasFeature) { 5476 return null; 5477 } 5478 synchronized (this) { 5479 List<String> result = null; 5480 // If we have multiple profiles we return the intersection of the 5481 // permitted lists. This can happen in cases where we have a device 5482 // and profile owner. 5483 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5484 final int PROFILES_SIZE = profiles.size(); 5485 for (int i = 0; i < PROFILES_SIZE; ++i) { 5486 // Just loop though all admins, only device or profiles 5487 // owners can have permitted lists set. 5488 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5489 final int N = policy.mAdminList.size(); 5490 for (int j = 0; j < N; j++) { 5491 ActiveAdmin admin = policy.mAdminList.get(j); 5492 List<String> fromAdmin = admin.permittedAccessiblityServices; 5493 if (fromAdmin != null) { 5494 if (result == null) { 5495 result = new ArrayList<String>(fromAdmin); 5496 } else { 5497 result.retainAll(fromAdmin); 5498 } 5499 } 5500 } 5501 } 5502 5503 // If we have a permitted list add all system accessibility services. 5504 if (result != null) { 5505 long id = mInjector.binderClearCallingIdentity(); 5506 try { 5507 UserInfo user = mUserManager.getUserInfo(userId); 5508 if (user.isManagedProfile()) { 5509 userId = user.profileGroupId; 5510 } 5511 AccessibilityManager accessibilityManager = 5512 getAccessibilityManagerForUser(userId); 5513 List<AccessibilityServiceInfo> installedServices = 5514 accessibilityManager.getInstalledAccessibilityServiceList(); 5515 5516 if (installedServices != null) { 5517 for (AccessibilityServiceInfo service : installedServices) { 5518 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 5519 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5520 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5521 result.add(serviceInfo.packageName); 5522 } 5523 } 5524 } 5525 } finally { 5526 mInjector.binderRestoreCallingIdentity(id); 5527 } 5528 } 5529 5530 return result; 5531 } 5532 } 5533 5534 private boolean checkCallerIsCurrentUserOrProfile() { 5535 int callingUserId = UserHandle.getCallingUserId(); 5536 long token = mInjector.binderClearCallingIdentity(); 5537 try { 5538 UserInfo currentUser; 5539 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 5540 try { 5541 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5542 } catch (RemoteException e) { 5543 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 5544 return false; 5545 } 5546 5547 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 5548 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 5549 + "of a user that isn't the foreground user."); 5550 return false; 5551 } 5552 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 5553 Slog.e(LOG_TAG, "Cannot set permitted input methods " 5554 + "of a user that isn't the foreground user."); 5555 return false; 5556 } 5557 } finally { 5558 mInjector.binderRestoreCallingIdentity(token); 5559 } 5560 return true; 5561 } 5562 5563 @Override 5564 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 5565 if (!mHasFeature) { 5566 return false; 5567 } 5568 Preconditions.checkNotNull(who, "ComponentName is null"); 5569 5570 // TODO When InputMethodManager supports per user calls remove 5571 // this restriction. 5572 if (!checkCallerIsCurrentUserOrProfile()) { 5573 return false; 5574 } 5575 5576 if (packageList != null) { 5577 // InputMethodManager fetches input methods for current user. 5578 // So this can only be set when calling user is the current user 5579 // or parent is current user in case of managed profiles. 5580 InputMethodManager inputMethodManager = 5581 mContext.getSystemService(InputMethodManager.class); 5582 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 5583 5584 if (enabledImes != null) { 5585 List<String> enabledPackages = new ArrayList<String>(); 5586 for (InputMethodInfo ime : enabledImes) { 5587 enabledPackages.add(ime.getPackageName()); 5588 } 5589 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5590 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 5591 + "because it contains already enabled input method."); 5592 return false; 5593 } 5594 } 5595 } 5596 5597 synchronized (this) { 5598 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5599 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5600 admin.permittedInputMethods = packageList; 5601 saveSettingsLocked(UserHandle.getCallingUserId()); 5602 } 5603 return true; 5604 } 5605 5606 @Override 5607 public List getPermittedInputMethods(ComponentName who) { 5608 if (!mHasFeature) { 5609 return null; 5610 } 5611 Preconditions.checkNotNull(who, "ComponentName is null"); 5612 5613 synchronized (this) { 5614 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5615 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5616 return admin.permittedInputMethods; 5617 } 5618 } 5619 5620 @Override 5621 public List getPermittedInputMethodsForCurrentUser() { 5622 UserInfo currentUser; 5623 try { 5624 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5625 } catch (RemoteException e) { 5626 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 5627 // Activity managed is dead, just allow all IMEs 5628 return null; 5629 } 5630 5631 int userId = currentUser.id; 5632 synchronized (this) { 5633 List<String> result = null; 5634 // If we have multiple profiles we return the intersection of the 5635 // permitted lists. This can happen in cases where we have a device 5636 // and profile owner. 5637 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5638 final int PROFILES_SIZE = profiles.size(); 5639 for (int i = 0; i < PROFILES_SIZE; ++i) { 5640 // Just loop though all admins, only device or profiles 5641 // owners can have permitted lists set. 5642 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5643 final int N = policy.mAdminList.size(); 5644 for (int j = 0; j < N; j++) { 5645 ActiveAdmin admin = policy.mAdminList.get(j); 5646 List<String> fromAdmin = admin.permittedInputMethods; 5647 if (fromAdmin != null) { 5648 if (result == null) { 5649 result = new ArrayList<String>(fromAdmin); 5650 } else { 5651 result.retainAll(fromAdmin); 5652 } 5653 } 5654 } 5655 } 5656 5657 // If we have a permitted list add all system input methods. 5658 if (result != null) { 5659 InputMethodManager inputMethodManager = 5660 mContext.getSystemService(InputMethodManager.class); 5661 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 5662 long id = mInjector.binderClearCallingIdentity(); 5663 try { 5664 if (imes != null) { 5665 for (InputMethodInfo ime : imes) { 5666 ServiceInfo serviceInfo = ime.getServiceInfo(); 5667 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5668 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5669 result.add(serviceInfo.packageName); 5670 } 5671 } 5672 } 5673 } finally { 5674 mInjector.binderRestoreCallingIdentity(id); 5675 } 5676 } 5677 return result; 5678 } 5679 } 5680 5681 @Override 5682 public UserHandle createUser(ComponentName who, String name) { 5683 Preconditions.checkNotNull(who, "ComponentName is null"); 5684 synchronized (this) { 5685 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5686 5687 long id = mInjector.binderClearCallingIdentity(); 5688 try { 5689 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 5690 if (userInfo != null) { 5691 return userInfo.getUserHandle(); 5692 } 5693 return null; 5694 } finally { 5695 mInjector.binderRestoreCallingIdentity(id); 5696 } 5697 } 5698 } 5699 5700 @Override 5701 public UserHandle createAndInitializeUser(ComponentName who, String name, 5702 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 5703 UserHandle user = createUser(who, name); 5704 if (user == null) { 5705 return null; 5706 } 5707 long id = mInjector.binderClearCallingIdentity(); 5708 try { 5709 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 5710 5711 final int userHandle = user.getIdentifier(); 5712 try { 5713 // Install the profile owner if not present. 5714 if (!mIPackageManager.isPackageAvailable(profileOwnerPkg, userHandle)) { 5715 mIPackageManager.installExistingPackageAsUser(profileOwnerPkg, userHandle); 5716 } 5717 5718 // Start user in background. 5719 mInjector.getIActivityManager().startUserInBackground(userHandle); 5720 } catch (RemoteException e) { 5721 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 5722 } 5723 5724 setActiveAdmin(profileOwnerComponent, true, userHandle, adminExtras); 5725 setProfileOwner(profileOwnerComponent, ownerName, userHandle); 5726 return user; 5727 } finally { 5728 mInjector.binderRestoreCallingIdentity(id); 5729 } 5730 } 5731 5732 @Override 5733 public boolean removeUser(ComponentName who, UserHandle userHandle) { 5734 Preconditions.checkNotNull(who, "ComponentName is null"); 5735 synchronized (this) { 5736 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5737 5738 long id = mInjector.binderClearCallingIdentity(); 5739 try { 5740 return mUserManager.removeUser(userHandle.getIdentifier()); 5741 } finally { 5742 mInjector.binderRestoreCallingIdentity(id); 5743 } 5744 } 5745 } 5746 5747 @Override 5748 public boolean switchUser(ComponentName who, UserHandle userHandle) { 5749 Preconditions.checkNotNull(who, "ComponentName is null"); 5750 synchronized (this) { 5751 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5752 5753 long id = mInjector.binderClearCallingIdentity(); 5754 try { 5755 int userId = UserHandle.USER_SYSTEM; 5756 if (userHandle != null) { 5757 userId = userHandle.getIdentifier(); 5758 } 5759 return mInjector.getIActivityManager().switchUser(userId); 5760 } catch (RemoteException e) { 5761 Log.e(LOG_TAG, "Couldn't switch user", e); 5762 return false; 5763 } finally { 5764 mInjector.binderRestoreCallingIdentity(id); 5765 } 5766 } 5767 } 5768 5769 @Override 5770 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 5771 Preconditions.checkNotNull(who, "ComponentName is null"); 5772 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5773 5774 synchronized (this) { 5775 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5776 5777 long id = mInjector.binderClearCallingIdentity(); 5778 try { 5779 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 5780 // if no restrictions were saved, mUserManager.getApplicationRestrictions 5781 // returns null, but DPM method should return an empty Bundle as per JavaDoc 5782 return bundle != null ? bundle : Bundle.EMPTY; 5783 } finally { 5784 mInjector.binderRestoreCallingIdentity(id); 5785 } 5786 } 5787 } 5788 5789 @Override 5790 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 5791 Preconditions.checkNotNull(who, "ComponentName is null"); 5792 final int userHandle = mInjector.userHandleGetCallingUserId(); 5793 synchronized (this) { 5794 ActiveAdmin activeAdmin = 5795 getActiveAdminForCallerLocked(who, 5796 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5797 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 5798 if (isDeviceOwner) { 5799 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 5800 throw new SecurityException("Device owner cannot set user restriction " + key); 5801 } 5802 } else { // profile owner 5803 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 5804 throw new SecurityException("Profile owner cannot set user restriction " + key); 5805 } 5806 } 5807 5808 // Save the restriction to ActiveAdmin. 5809 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 5810 saveSettingsLocked(userHandle); 5811 5812 pushUserRestrictions(userHandle); 5813 5814 sendChangedNotification(userHandle); 5815 } 5816 } 5817 5818 private void pushUserRestrictions(int userId) { 5819 synchronized (this) { 5820 final Bundle global; 5821 final Bundle local = new Bundle(); 5822 if (mOwners.isDeviceOwnerUserId(userId)) { 5823 global = new Bundle(); 5824 5825 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5826 if (deviceOwner == null) { 5827 return; // Shouldn't happen. 5828 } 5829 5830 UserRestrictionsUtils.sortToGlobalAndLocal(deviceOwner.userRestrictions, 5831 global, local); 5832 // DO can disable camera globally. 5833 if (deviceOwner.disableCamera) { 5834 global.putBoolean(UserManager.DISALLOW_CAMERA, true); 5835 } 5836 } else { 5837 global = null; 5838 5839 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 5840 if (profileOwner != null) { 5841 UserRestrictionsUtils.merge(local, profileOwner.userRestrictions); 5842 } 5843 } 5844 // Also merge in *local* camera restriction. 5845 if (getCameraDisabled(/* who= */ null, 5846 userId, /* mergeDeviceOwnerRestriction= */ false)) { 5847 local.putBoolean(UserManager.DISALLOW_CAMERA, true); 5848 } 5849 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, local, global); 5850 } 5851 } 5852 5853 @Override 5854 public Bundle getUserRestrictions(ComponentName who, int userHandle) { 5855 Preconditions.checkNotNull(who, "ComponentName is null"); 5856 enforceCrossUserPermission(userHandle); 5857 synchronized (this) { 5858 ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(who, userHandle); 5859 if (activeAdmin == null) { 5860 throw new SecurityException("No active admin: " + activeAdmin); 5861 } 5862 if (activeAdmin.getUid() != mInjector.binderGetCallingUid()) { 5863 mContext.enforceCallingOrSelfPermission( 5864 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 5865 } 5866 return activeAdmin.userRestrictions; 5867 } 5868 } 5869 5870 @Override 5871 public boolean setApplicationHidden(ComponentName who, String packageName, 5872 boolean hidden) { 5873 Preconditions.checkNotNull(who, "ComponentName is null"); 5874 int callingUserId = UserHandle.getCallingUserId(); 5875 synchronized (this) { 5876 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5877 5878 long id = mInjector.binderClearCallingIdentity(); 5879 try { 5880 return mIPackageManager.setApplicationHiddenSettingAsUser( 5881 packageName, hidden, callingUserId); 5882 } catch (RemoteException re) { 5883 // shouldn't happen 5884 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 5885 } finally { 5886 mInjector.binderRestoreCallingIdentity(id); 5887 } 5888 return false; 5889 } 5890 } 5891 5892 @Override 5893 public boolean isApplicationHidden(ComponentName who, String packageName) { 5894 Preconditions.checkNotNull(who, "ComponentName is null"); 5895 int callingUserId = UserHandle.getCallingUserId(); 5896 synchronized (this) { 5897 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5898 5899 long id = mInjector.binderClearCallingIdentity(); 5900 try { 5901 return mIPackageManager.getApplicationHiddenSettingAsUser( 5902 packageName, callingUserId); 5903 } catch (RemoteException re) { 5904 // shouldn't happen 5905 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 5906 } finally { 5907 mInjector.binderRestoreCallingIdentity(id); 5908 } 5909 return false; 5910 } 5911 } 5912 5913 @Override 5914 public void enableSystemApp(ComponentName who, String packageName) { 5915 Preconditions.checkNotNull(who, "ComponentName is null"); 5916 synchronized (this) { 5917 // This API can only be called by an active device admin, 5918 // so try to retrieve it to check that the caller is one. 5919 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5920 5921 int userId = UserHandle.getCallingUserId(); 5922 long id = mInjector.binderClearCallingIdentity(); 5923 5924 try { 5925 if (VERBOSE_LOG) { 5926 Slog.v(LOG_TAG, "installing " + packageName + " for " 5927 + userId); 5928 } 5929 5930 UserManager um = UserManager.get(mContext); 5931 UserInfo primaryUser = um.getProfileParent(userId); 5932 5933 // Call did not come from a managed profile 5934 if (primaryUser == null) { 5935 primaryUser = um.getUserInfo(userId); 5936 } 5937 5938 if (!isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 5939 throw new IllegalArgumentException("Only system apps can be enabled this way."); 5940 } 5941 5942 // Install the app. 5943 mIPackageManager.installExistingPackageAsUser(packageName, userId); 5944 5945 } catch (RemoteException re) { 5946 // shouldn't happen 5947 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 5948 } finally { 5949 mInjector.binderRestoreCallingIdentity(id); 5950 } 5951 } 5952 } 5953 5954 @Override 5955 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 5956 Preconditions.checkNotNull(who, "ComponentName is null"); 5957 synchronized (this) { 5958 // This API can only be called by an active device admin, 5959 // so try to retrieve it to check that the caller is one. 5960 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5961 5962 int userId = UserHandle.getCallingUserId(); 5963 long id = mInjector.binderClearCallingIdentity(); 5964 5965 try { 5966 UserManager um = UserManager.get(mContext); 5967 UserInfo primaryUser = um.getProfileParent(userId); 5968 5969 // Call did not come from a managed profile. 5970 if (primaryUser == null) { 5971 primaryUser = um.getUserInfo(userId); 5972 } 5973 5974 List<ResolveInfo> activitiesToEnable = mIPackageManager.queryIntentActivities( 5975 intent, 5976 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 5977 0, // no flags 5978 primaryUser.id); 5979 5980 if (VERBOSE_LOG) { 5981 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 5982 } 5983 int numberOfAppsInstalled = 0; 5984 if (activitiesToEnable != null) { 5985 for (ResolveInfo info : activitiesToEnable) { 5986 if (info.activityInfo != null) { 5987 String packageName = info.activityInfo.packageName; 5988 if (isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 5989 numberOfAppsInstalled++; 5990 mIPackageManager.installExistingPackageAsUser(packageName, userId); 5991 } else { 5992 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 5993 + " system app"); 5994 } 5995 } 5996 } 5997 } 5998 return numberOfAppsInstalled; 5999 } catch (RemoteException e) { 6000 // shouldn't happen 6001 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 6002 return 0; 6003 } finally { 6004 mInjector.binderRestoreCallingIdentity(id); 6005 } 6006 } 6007 } 6008 6009 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 6010 throws RemoteException { 6011 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 6012 userId); 6013 if (appInfo == null) { 6014 throw new IllegalArgumentException("The application " + packageName + 6015 " is not present on this device"); 6016 } 6017 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 6018 } 6019 6020 @Override 6021 public void setAccountManagementDisabled(ComponentName who, String accountType, 6022 boolean disabled) { 6023 if (!mHasFeature) { 6024 return; 6025 } 6026 Preconditions.checkNotNull(who, "ComponentName is null"); 6027 synchronized (this) { 6028 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6029 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6030 if (disabled) { 6031 ap.accountTypesWithManagementDisabled.add(accountType); 6032 } else { 6033 ap.accountTypesWithManagementDisabled.remove(accountType); 6034 } 6035 saveSettingsLocked(UserHandle.getCallingUserId()); 6036 } 6037 } 6038 6039 @Override 6040 public String[] getAccountTypesWithManagementDisabled() { 6041 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 6042 } 6043 6044 @Override 6045 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 6046 enforceCrossUserPermission(userId); 6047 if (!mHasFeature) { 6048 return null; 6049 } 6050 synchronized (this) { 6051 DevicePolicyData policy = getUserData(userId); 6052 final int N = policy.mAdminList.size(); 6053 ArraySet<String> resultSet = new ArraySet<>(); 6054 for (int i = 0; i < N; i++) { 6055 ActiveAdmin admin = policy.mAdminList.get(i); 6056 resultSet.addAll(admin.accountTypesWithManagementDisabled); 6057 } 6058 return resultSet.toArray(new String[resultSet.size()]); 6059 } 6060 } 6061 6062 @Override 6063 public void setUninstallBlocked(ComponentName who, String packageName, 6064 boolean uninstallBlocked) { 6065 Preconditions.checkNotNull(who, "ComponentName is null"); 6066 final int userId = UserHandle.getCallingUserId(); 6067 synchronized (this) { 6068 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6069 6070 long id = mInjector.binderClearCallingIdentity(); 6071 try { 6072 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 6073 } catch (RemoteException re) { 6074 // Shouldn't happen. 6075 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 6076 } finally { 6077 mInjector.binderRestoreCallingIdentity(id); 6078 } 6079 } 6080 } 6081 6082 @Override 6083 public boolean isUninstallBlocked(ComponentName who, String packageName) { 6084 // This function should return true if and only if the package is blocked by 6085 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 6086 // when the package is a system app, or when it is an active device admin. 6087 final int userId = UserHandle.getCallingUserId(); 6088 6089 synchronized (this) { 6090 if (who != null) { 6091 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6092 } 6093 6094 long id = mInjector.binderClearCallingIdentity(); 6095 try { 6096 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 6097 } catch (RemoteException re) { 6098 // Shouldn't happen. 6099 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 6100 } finally { 6101 mInjector.binderRestoreCallingIdentity(id); 6102 } 6103 } 6104 return false; 6105 } 6106 6107 @Override 6108 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 6109 if (!mHasFeature) { 6110 return; 6111 } 6112 Preconditions.checkNotNull(who, "ComponentName is null"); 6113 synchronized (this) { 6114 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6115 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6116 if (admin.disableCallerId != disabled) { 6117 admin.disableCallerId = disabled; 6118 saveSettingsLocked(UserHandle.getCallingUserId()); 6119 } 6120 } 6121 } 6122 6123 @Override 6124 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 6125 if (!mHasFeature) { 6126 return false; 6127 } 6128 Preconditions.checkNotNull(who, "ComponentName is null"); 6129 synchronized (this) { 6130 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6131 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6132 return admin.disableCallerId; 6133 } 6134 } 6135 6136 @Override 6137 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 6138 // TODO: Should there be a check to make sure this relationship is within a profile group? 6139 //enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 6140 synchronized (this) { 6141 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 6142 return (admin != null) ? admin.disableCallerId : false; 6143 } 6144 } 6145 6146 @Override 6147 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 6148 long actualDirectoryId, Intent originalIntent) { 6149 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent( 6150 actualLookupKey, actualContactId, actualDirectoryId, originalIntent); 6151 final int callingUserId = UserHandle.getCallingUserId(); 6152 6153 final long ident = mInjector.binderClearCallingIdentity(); 6154 try { 6155 synchronized (this) { 6156 final int managedUserId = getManagedUserId(callingUserId); 6157 if (managedUserId < 0) { 6158 return; 6159 } 6160 if (getCrossProfileCallerIdDisabledForUser(managedUserId)) { 6161 if (VERBOSE_LOG) { 6162 Log.v(LOG_TAG, 6163 "Cross-profile contacts access disabled for user " + managedUserId); 6164 } 6165 return; 6166 } 6167 ContactsInternal.startQuickContactWithErrorToastForUser( 6168 mContext, intent, new UserHandle(managedUserId)); 6169 } 6170 } finally { 6171 mInjector.binderRestoreCallingIdentity(ident); 6172 } 6173 } 6174 6175 /** 6176 * @return the user ID of the managed user that is linked to the current user, if any. 6177 * Otherwise -1. 6178 */ 6179 public int getManagedUserId(int callingUserId) { 6180 if (VERBOSE_LOG) { 6181 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 6182 } 6183 6184 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 6185 if (ui.id == callingUserId || !ui.isManagedProfile()) { 6186 continue; // Caller user self, or not a managed profile. Skip. 6187 } 6188 if (VERBOSE_LOG) { 6189 Log.v(LOG_TAG, "Managed user=" + ui.id); 6190 } 6191 return ui.id; 6192 } 6193 if (VERBOSE_LOG) { 6194 Log.v(LOG_TAG, "Managed user not found."); 6195 } 6196 return -1; 6197 } 6198 6199 @Override 6200 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 6201 if (!mHasFeature) { 6202 return; 6203 } 6204 Preconditions.checkNotNull(who, "ComponentName is null"); 6205 synchronized (this) { 6206 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6207 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6208 if (admin.disableBluetoothContactSharing != disabled) { 6209 admin.disableBluetoothContactSharing = disabled; 6210 saveSettingsLocked(UserHandle.getCallingUserId()); 6211 } 6212 } 6213 } 6214 6215 @Override 6216 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 6217 if (!mHasFeature) { 6218 return false; 6219 } 6220 Preconditions.checkNotNull(who, "ComponentName is null"); 6221 synchronized (this) { 6222 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6223 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6224 return admin.disableBluetoothContactSharing; 6225 } 6226 } 6227 6228 @Override 6229 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 6230 // TODO: Should there be a check to make sure this relationship is 6231 // within a profile group? 6232 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 6233 synchronized (this) { 6234 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 6235 return (admin != null) ? admin.disableBluetoothContactSharing : false; 6236 } 6237 } 6238 6239 /** 6240 * Sets which packages may enter lock task mode. 6241 * 6242 * This function can only be called by the device owner. 6243 * @param packages The list of packages allowed to enter lock task mode. 6244 */ 6245 @Override 6246 public void setLockTaskPackages(ComponentName who, String[] packages) 6247 throws SecurityException { 6248 Preconditions.checkNotNull(who, "ComponentName is null"); 6249 synchronized (this) { 6250 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6251 6252 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6253 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 6254 } 6255 } 6256 6257 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 6258 DevicePolicyData policy = getUserData(userHandle); 6259 policy.mLockTaskPackages = packages; 6260 6261 // Store the settings persistently. 6262 saveSettingsLocked(userHandle); 6263 updateLockTaskPackagesLocked(packages, userHandle); 6264 } 6265 6266 /** 6267 * This function returns the list of components allowed to start the task lock mode. 6268 */ 6269 @Override 6270 public String[] getLockTaskPackages(ComponentName who) { 6271 Preconditions.checkNotNull(who, "ComponentName is null"); 6272 synchronized (this) { 6273 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6274 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6275 final List<String> packages = getLockTaskPackagesLocked(userHandle); 6276 return packages.toArray(new String[packages.size()]); 6277 } 6278 } 6279 6280 private List<String> getLockTaskPackagesLocked(int userHandle) { 6281 final DevicePolicyData policy = getUserData(userHandle); 6282 return policy.mLockTaskPackages; 6283 } 6284 6285 /** 6286 * This function lets the caller know whether the given package is allowed to start the 6287 * lock task mode. 6288 * @param pkg The package to check 6289 */ 6290 @Override 6291 public boolean isLockTaskPermitted(String pkg) { 6292 // Get current user's devicepolicy 6293 int uid = mInjector.binderGetCallingUid(); 6294 int userHandle = UserHandle.getUserId(uid); 6295 DevicePolicyData policy = getUserData(userHandle); 6296 synchronized (this) { 6297 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 6298 String lockTaskPackage = policy.mLockTaskPackages.get(i); 6299 6300 // If the given package equals one of the packages stored our list, 6301 // we allow this package to start lock task mode. 6302 if (lockTaskPackage.equals(pkg)) { 6303 return true; 6304 } 6305 } 6306 } 6307 return false; 6308 } 6309 6310 @Override 6311 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 6312 if (!UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID)) { 6313 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 6314 } 6315 synchronized (this) { 6316 final DevicePolicyData policy = getUserData(userHandle); 6317 Bundle adminExtras = new Bundle(); 6318 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 6319 for (ActiveAdmin admin : policy.mAdminList) { 6320 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 6321 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 6322 if (ownsDevice || ownsProfile) { 6323 if (isEnabled) { 6324 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 6325 adminExtras, null); 6326 } else { 6327 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 6328 } 6329 } 6330 } 6331 } 6332 } 6333 6334 @Override 6335 public void setGlobalSetting(ComponentName who, String setting, String value) { 6336 Preconditions.checkNotNull(who, "ComponentName is null"); 6337 6338 synchronized (this) { 6339 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6340 6341 // Some settings are no supported any more. However we do not want to throw a 6342 // SecurityException to avoid breaking apps. 6343 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 6344 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 6345 return; 6346 } 6347 6348 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 6349 throw new SecurityException(String.format( 6350 "Permission denial: device owners cannot update %1$s", setting)); 6351 } 6352 6353 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 6354 // ignore if it contradicts an existing policy 6355 long timeMs = getMaximumTimeToLock(who, UserHandle.getCallingUserId()); 6356 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 6357 return; 6358 } 6359 } 6360 6361 long id = mInjector.binderClearCallingIdentity(); 6362 try { 6363 mInjector.settingsGlobalPutString(setting, value); 6364 } finally { 6365 mInjector.binderRestoreCallingIdentity(id); 6366 } 6367 } 6368 } 6369 6370 @Override 6371 public void setSecureSetting(ComponentName who, String setting, String value) { 6372 Preconditions.checkNotNull(who, "ComponentName is null"); 6373 int callingUserId = mInjector.userHandleGetCallingUserId(); 6374 6375 synchronized (this) { 6376 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6377 6378 if (isDeviceOwner(who, mInjector.userHandleGetCallingUserId())) { 6379 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 6380 throw new SecurityException(String.format( 6381 "Permission denial: Device owners cannot update %1$s", setting)); 6382 } 6383 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 6384 throw new SecurityException(String.format( 6385 "Permission denial: Profile owners cannot update %1$s", setting)); 6386 } 6387 6388 long id = mInjector.binderClearCallingIdentity(); 6389 try { 6390 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 6391 } finally { 6392 mInjector.binderRestoreCallingIdentity(id); 6393 } 6394 } 6395 } 6396 6397 @Override 6398 public void setMasterVolumeMuted(ComponentName who, boolean on) { 6399 Preconditions.checkNotNull(who, "ComponentName is null"); 6400 synchronized (this) { 6401 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6402 int userId = UserHandle.getCallingUserId(); 6403 long identity = mInjector.binderClearCallingIdentity(); 6404 try { 6405 IAudioService iAudioService = IAudioService.Stub.asInterface( 6406 ServiceManager.getService(Context.AUDIO_SERVICE)); 6407 iAudioService.setMasterMute(on, 0, mContext.getPackageName(), userId); 6408 } catch (RemoteException re) { 6409 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 6410 } finally { 6411 mInjector.binderRestoreCallingIdentity(identity); 6412 } 6413 } 6414 } 6415 6416 @Override 6417 public boolean isMasterVolumeMuted(ComponentName who) { 6418 Preconditions.checkNotNull(who, "ComponentName is null"); 6419 synchronized (this) { 6420 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6421 6422 AudioManager audioManager = 6423 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 6424 return audioManager.isMasterMute(); 6425 } 6426 } 6427 6428 @Override 6429 public void setUserIcon(ComponentName who, Bitmap icon) { 6430 synchronized (this) { 6431 Preconditions.checkNotNull(who, "ComponentName is null"); 6432 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6433 6434 int userId = UserHandle.getCallingUserId(); 6435 long id = mInjector.binderClearCallingIdentity(); 6436 try { 6437 mUserManager.setUserIcon(userId, icon); 6438 } finally { 6439 mInjector.binderRestoreCallingIdentity(id); 6440 } 6441 } 6442 } 6443 6444 @Override 6445 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 6446 Preconditions.checkNotNull(who, "ComponentName is null"); 6447 synchronized (this) { 6448 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6449 } 6450 final int userId = UserHandle.getCallingUserId(); 6451 LockPatternUtils utils = new LockPatternUtils(mContext); 6452 6453 long ident = mInjector.binderClearCallingIdentity(); 6454 try { 6455 // disallow disabling the keyguard if a password is currently set 6456 if (disabled && utils.isSecure(userId)) { 6457 return false; 6458 } 6459 utils.setLockScreenDisabled(disabled, userId); 6460 } finally { 6461 mInjector.binderRestoreCallingIdentity(ident); 6462 } 6463 return true; 6464 } 6465 6466 @Override 6467 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 6468 int userId = UserHandle.getCallingUserId(); 6469 synchronized (this) { 6470 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6471 DevicePolicyData policy = getUserData(userId); 6472 if (policy.mStatusBarDisabled != disabled) { 6473 if (!setStatusBarDisabledInternal(disabled, userId)) { 6474 return false; 6475 } 6476 policy.mStatusBarDisabled = disabled; 6477 saveSettingsLocked(userId); 6478 } 6479 } 6480 return true; 6481 } 6482 6483 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 6484 long ident = mInjector.binderClearCallingIdentity(); 6485 try { 6486 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 6487 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 6488 if (statusBarService != null) { 6489 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 6490 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 6491 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 6492 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 6493 return true; 6494 } 6495 } catch (RemoteException e) { 6496 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 6497 } finally { 6498 mInjector.binderRestoreCallingIdentity(ident); 6499 } 6500 return false; 6501 } 6502 6503 /** 6504 * We need to update the internal state of whether a user has completed setup once. After 6505 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 6506 * as we don't trust any apps that might try to reset it. 6507 * <p> 6508 * Unfortunately, we don't know which user's setup state was changed, so we write all of 6509 * them. 6510 */ 6511 void updateUserSetupComplete() { 6512 List<UserInfo> users = mUserManager.getUsers(true); 6513 final int N = users.size(); 6514 for (int i = 0; i < N; i++) { 6515 int userHandle = users.get(i).id; 6516 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 6517 userHandle) != 0) { 6518 DevicePolicyData policy = getUserData(userHandle); 6519 if (!policy.mUserSetupComplete) { 6520 policy.mUserSetupComplete = true; 6521 synchronized (this) { 6522 saveSettingsLocked(userHandle); 6523 } 6524 } 6525 } 6526 } 6527 } 6528 6529 private class SetupContentObserver extends ContentObserver { 6530 6531 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 6532 Settings.Secure.USER_SETUP_COMPLETE); 6533 6534 public SetupContentObserver(Handler handler) { 6535 super(handler); 6536 } 6537 6538 void register(ContentResolver resolver) { 6539 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 6540 } 6541 6542 @Override 6543 public void onChange(boolean selfChange, Uri uri) { 6544 if (mUserSetupComplete.equals(uri)) { 6545 updateUserSetupComplete(); 6546 } 6547 } 6548 } 6549 6550 @VisibleForTesting 6551 final class LocalService extends DevicePolicyManagerInternal { 6552 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 6553 6554 @Override 6555 public List<String> getCrossProfileWidgetProviders(int profileId) { 6556 synchronized (DevicePolicyManagerService.this) { 6557 if (mOwners == null) { 6558 return Collections.emptyList(); 6559 } 6560 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 6561 if (ownerComponent == null) { 6562 return Collections.emptyList(); 6563 } 6564 6565 DevicePolicyData policy = getUserDataUnchecked(profileId); 6566 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 6567 6568 if (admin == null || admin.crossProfileWidgetProviders == null 6569 || admin.crossProfileWidgetProviders.isEmpty()) { 6570 return Collections.emptyList(); 6571 } 6572 6573 return admin.crossProfileWidgetProviders; 6574 } 6575 } 6576 6577 @Override 6578 public void addOnCrossProfileWidgetProvidersChangeListener( 6579 OnCrossProfileWidgetProvidersChangeListener listener) { 6580 synchronized (DevicePolicyManagerService.this) { 6581 if (mWidgetProviderListeners == null) { 6582 mWidgetProviderListeners = new ArrayList<>(); 6583 } 6584 if (!mWidgetProviderListeners.contains(listener)) { 6585 mWidgetProviderListeners.add(listener); 6586 } 6587 } 6588 } 6589 6590 @Override 6591 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 6592 final int userId = UserHandle.getUserId(uid); 6593 synchronized(DevicePolicyManagerService.this) { 6594 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 6595 } 6596 } 6597 6598 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 6599 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 6600 synchronized (DevicePolicyManagerService.this) { 6601 listeners = new ArrayList<>(mWidgetProviderListeners); 6602 } 6603 final int listenerCount = listeners.size(); 6604 for (int i = 0; i < listenerCount; i++) { 6605 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 6606 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 6607 } 6608 } 6609 } 6610 6611 /** 6612 * Returns true if specified admin is allowed to limit passwords and has a 6613 * {@code passwordQuality} of at least {@code minPasswordQuality} 6614 */ 6615 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 6616 if (admin.passwordQuality < minPasswordQuality) { 6617 return false; 6618 } 6619 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 6620 } 6621 6622 @Override 6623 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 6624 if (policy != null && !policy.isValid()) { 6625 throw new IllegalArgumentException("Invalid system update policy."); 6626 } 6627 synchronized (this) { 6628 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6629 if (policy == null) { 6630 mOwners.clearSystemUpdatePolicy(); 6631 } else { 6632 mOwners.setSystemUpdatePolicy(policy); 6633 } 6634 mOwners.writeDeviceOwner(); 6635 } 6636 mContext.sendBroadcastAsUser( 6637 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 6638 UserHandle.SYSTEM); 6639 } 6640 6641 @Override 6642 public SystemUpdatePolicy getSystemUpdatePolicy() { 6643 synchronized (this) { 6644 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 6645 if (policy != null && !policy.isValid()) { 6646 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 6647 return null; 6648 } 6649 return policy; 6650 } 6651 } 6652 6653 /** 6654 * Checks if the caller of the method is the device owner app. 6655 * 6656 * @param callerUid UID of the caller. 6657 * @return true if the caller is the device owner app 6658 */ 6659 @VisibleForTesting 6660 boolean isCallerDeviceOwner(int callerUid) { 6661 synchronized (this) { 6662 if (!mOwners.hasDeviceOwner()) { 6663 return false; 6664 } 6665 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 6666 return false; 6667 } 6668 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 6669 .getPackageName(); 6670 final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 6671 6672 for (String pkg : pkgs) { 6673 if (deviceOwnerPackageName.equals(pkg)) { 6674 return true; 6675 } 6676 } 6677 } 6678 6679 return false; 6680 } 6681 6682 @Override 6683 public void notifyPendingSystemUpdate(long updateReceivedTime) { 6684 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 6685 "Only the system update service can broadcast update information"); 6686 6687 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 6688 Slog.w(LOG_TAG, "Only the system update service in the system user " + 6689 "can broadcast update information."); 6690 return; 6691 } 6692 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 6693 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 6694 updateReceivedTime); 6695 6696 synchronized (this) { 6697 final String deviceOwnerPackage = 6698 mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerComponent().getPackageName() 6699 : null; 6700 if (deviceOwnerPackage == null) { 6701 return; 6702 } 6703 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 6704 6705 ActivityInfo[] receivers = null; 6706 try { 6707 receivers = mContext.getPackageManager().getPackageInfo( 6708 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 6709 } catch (NameNotFoundException e) { 6710 Log.e(LOG_TAG, "Cannot find device owner package", e); 6711 } 6712 if (receivers != null) { 6713 long ident = mInjector.binderClearCallingIdentity(); 6714 try { 6715 for (int i = 0; i < receivers.length; i++) { 6716 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 6717 intent.setComponent(new ComponentName(deviceOwnerPackage, 6718 receivers[i].name)); 6719 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 6720 } 6721 } 6722 } finally { 6723 mInjector.binderRestoreCallingIdentity(ident); 6724 } 6725 } 6726 } 6727 } 6728 6729 @Override 6730 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 6731 int userId = UserHandle.getCallingUserId(); 6732 synchronized (this) { 6733 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6734 DevicePolicyData userPolicy = getUserData(userId); 6735 if (userPolicy.mPermissionPolicy != policy) { 6736 userPolicy.mPermissionPolicy = policy; 6737 saveSettingsLocked(userId); 6738 } 6739 } 6740 } 6741 6742 @Override 6743 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 6744 int userId = UserHandle.getCallingUserId(); 6745 synchronized (this) { 6746 DevicePolicyData userPolicy = getUserData(userId); 6747 return userPolicy.mPermissionPolicy; 6748 } 6749 } 6750 6751 @Override 6752 public boolean setPermissionGrantState(ComponentName admin, String packageName, 6753 String permission, int grantState) throws RemoteException { 6754 UserHandle user = mInjector.binderGetCallingUserHandle(); 6755 synchronized (this) { 6756 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6757 long ident = mInjector.binderClearCallingIdentity(); 6758 try { 6759 if (getTargetSdk(packageName, user.getIdentifier()) 6760 < android.os.Build.VERSION_CODES.M) { 6761 return false; 6762 } 6763 final PackageManager packageManager = mContext.getPackageManager(); 6764 switch (grantState) { 6765 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 6766 packageManager.grantRuntimePermission(packageName, permission, user); 6767 packageManager.updatePermissionFlags(permission, packageName, 6768 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6769 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6770 } break; 6771 6772 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 6773 packageManager.revokeRuntimePermission(packageName, 6774 permission, user); 6775 packageManager.updatePermissionFlags(permission, packageName, 6776 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6777 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6778 } break; 6779 6780 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 6781 packageManager.updatePermissionFlags(permission, packageName, 6782 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 6783 } break; 6784 } 6785 return true; 6786 } catch (SecurityException se) { 6787 return false; 6788 } finally { 6789 mInjector.binderRestoreCallingIdentity(ident); 6790 } 6791 } 6792 } 6793 6794 @Override 6795 public int getPermissionGrantState(ComponentName admin, String packageName, 6796 String permission) throws RemoteException { 6797 PackageManager packageManager = mContext.getPackageManager(); 6798 6799 UserHandle user = mInjector.binderGetCallingUserHandle(); 6800 synchronized (this) { 6801 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6802 long ident = mInjector.binderClearCallingIdentity(); 6803 try { 6804 int granted = mIPackageManager.checkPermission(permission, 6805 packageName, user.getIdentifier()); 6806 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 6807 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 6808 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 6809 // Not controlled by policy 6810 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 6811 } else { 6812 // Policy controlled so return result based on permission grant state 6813 return granted == PackageManager.PERMISSION_GRANTED 6814 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 6815 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 6816 } 6817 } finally { 6818 mInjector.binderRestoreCallingIdentity(ident); 6819 } 6820 } 6821 } 6822 6823 boolean isPackageInstalledForUser(String packageName, int userHandle) { 6824 try { 6825 PackageInfo pi = mIPackageManager.getPackageInfo(packageName, 0, userHandle); 6826 return (pi != null) && (pi.applicationInfo.flags != 0); 6827 } catch (RemoteException re) { 6828 throw new RuntimeException("Package manager has died", re); 6829 } 6830 } 6831 6832 @Override 6833 public boolean isProvisioningAllowed(String action) { 6834 final int callingUserId = mInjector.userHandleGetCallingUserId(); 6835 if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) { 6836 if (!hasFeatureManagedUsers()) { 6837 return false; 6838 } 6839 synchronized (this) { 6840 if (mOwners.hasDeviceOwner()) { 6841 if (!mInjector.userManagerIsSplitSystemUser()) { 6842 // Only split-system-user systems support managed-profiles in combination with 6843 // device-owner. 6844 return false; 6845 } 6846 if (mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM) { 6847 // Only system device-owner supports managed-profiles. Non-system device-owner 6848 // doesn't. 6849 return false; 6850 } 6851 if (callingUserId == UserHandle.USER_SYSTEM) { 6852 // Managed-profiles cannot be setup on the system user, only regular users. 6853 return false; 6854 } 6855 } 6856 } 6857 if (getProfileOwner(callingUserId) != null) { 6858 // Managed user cannot have a managed profile. 6859 return false; 6860 } 6861 final long ident = mInjector.binderClearCallingIdentity(); 6862 try { 6863 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, true)) { 6864 return false; 6865 } 6866 } finally { 6867 mInjector.binderRestoreCallingIdentity(ident); 6868 } 6869 return true; 6870 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) { 6871 return isDeviceOwnerProvisioningAllowed(callingUserId); 6872 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) { 6873 if (!hasFeatureManagedUsers()) { 6874 return false; 6875 } 6876 if (!mInjector.userManagerIsSplitSystemUser()) { 6877 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 6878 return false; 6879 } 6880 if (callingUserId == UserHandle.USER_SYSTEM) { 6881 // System user cannot be a managed user. 6882 return false; 6883 } 6884 if (hasUserSetupCompleted(callingUserId)) { 6885 return false; 6886 } 6887 return true; 6888 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) { 6889 if (!mInjector.userManagerIsSplitSystemUser()) { 6890 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 6891 return false; 6892 } 6893 return isDeviceOwnerProvisioningAllowed(callingUserId); 6894 } 6895 throw new IllegalArgumentException("Unknown provisioning action " + action); 6896 } 6897 6898 private boolean isDeviceOwnerProvisioningAllowed(int callingUserId) { 6899 synchronized (this) { 6900 if (mOwners.hasDeviceOwner()) { 6901 return false; 6902 } 6903 } 6904 if (getProfileOwner(callingUserId) != null) { 6905 return false; 6906 } 6907 if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0) { 6908 return false; 6909 } 6910 if (callingUserId != UserHandle.USER_SYSTEM) { 6911 // Device owner provisioning can only be initiated from system user. 6912 return false; 6913 } 6914 return true; 6915 } 6916 6917 private boolean hasFeatureManagedUsers() { 6918 try { 6919 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS); 6920 } catch (RemoteException e) { 6921 return false; 6922 } 6923 } 6924 6925 @Override 6926 public String getWifiMacAddress() { 6927 // Make sure caller has DO. 6928 synchronized (this) { 6929 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6930 } 6931 6932 final long ident = mInjector.binderClearCallingIdentity(); 6933 try { 6934 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 6935 if (wifiInfo == null) { 6936 return null; 6937 } 6938 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 6939 } finally { 6940 mInjector.binderRestoreCallingIdentity(ident); 6941 } 6942 } 6943 6944 /** 6945 * Returns the target sdk version number that the given packageName was built for 6946 * in the given user. 6947 */ 6948 private int getTargetSdk(String packageName, int userId) throws RemoteException { 6949 final ApplicationInfo ai = mIPackageManager 6950 .getApplicationInfo(packageName, 0, userId); 6951 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 6952 return targetSdkVersion; 6953 } 6954 6955 @Override 6956 public boolean isManagedProfile(ComponentName admin) { 6957 synchronized (this) { 6958 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6959 } 6960 final int callingUserId = mInjector.userHandleGetCallingUserId(); 6961 final UserInfo user; 6962 long ident = mInjector.binderClearCallingIdentity(); 6963 try { 6964 user = mUserManager.getUserInfo(callingUserId); 6965 } finally { 6966 mInjector.binderRestoreCallingIdentity(ident); 6967 } 6968 return user != null && user.isManagedProfile(); 6969 } 6970 6971 @Override 6972 public boolean isSystemOnlyUser(ComponentName admin) { 6973 synchronized (this) { 6974 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6975 } 6976 final int callingUserId = mInjector.userHandleGetCallingUserId(); 6977 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 6978 } 6979 6980 @Override 6981 public void reboot(ComponentName admin) { 6982 Preconditions.checkNotNull(admin); 6983 // Make sure caller has DO. 6984 synchronized (this) { 6985 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6986 } 6987 long ident = mInjector.binderClearCallingIdentity(); 6988 try { 6989 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 6990 } finally { 6991 mInjector.binderRestoreCallingIdentity(ident); 6992 } 6993 } 6994 6995} 6996