DevicePolicyManagerService.java revision f3378a29e9c270f1cbfebb126de6f14355ccba08
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.devicepolicy; 18 19import static android.Manifest.permission.MANAGE_CA_CERTIFICATES; 20import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 21import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 22import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 23import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES; 24import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 25import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 26import static org.xmlpull.v1.XmlPullParser.END_TAG; 27import static org.xmlpull.v1.XmlPullParser.TEXT; 28 29import com.google.android.collect.Sets; 30 31import android.Manifest.permission; 32import android.accessibilityservice.AccessibilityServiceInfo; 33import android.accounts.AccountManager; 34import android.annotation.NonNull; 35import android.app.Activity; 36import android.app.ActivityManagerNative; 37import android.app.AlarmManager; 38import android.app.AppGlobals; 39import android.app.IActivityManager; 40import android.app.Notification; 41import android.app.NotificationManager; 42import android.app.PendingIntent; 43import android.app.StatusBarManager; 44import android.app.admin.DeviceAdminInfo; 45import android.app.admin.DeviceAdminReceiver; 46import android.app.admin.DevicePolicyManager; 47import android.app.admin.DevicePolicyManagerInternal; 48import android.app.admin.IDevicePolicyManager; 49import android.app.admin.SystemUpdatePolicy; 50import android.app.backup.IBackupManager; 51import android.content.BroadcastReceiver; 52import android.content.ComponentName; 53import android.content.ContentResolver; 54import android.content.Context; 55import android.content.Intent; 56import android.content.IntentFilter; 57import android.content.pm.ActivityInfo; 58import android.content.pm.ApplicationInfo; 59import android.content.pm.IPackageManager; 60import android.content.pm.PackageInfo; 61import android.content.pm.PackageManager; 62import android.content.pm.PackageManager.NameNotFoundException; 63import android.content.pm.PackageManagerInternal; 64import android.content.pm.ResolveInfo; 65import android.content.pm.ServiceInfo; 66import android.content.pm.UserInfo; 67import android.database.ContentObserver; 68import android.graphics.Bitmap; 69import android.media.AudioManager; 70import android.media.IAudioService; 71import android.net.ConnectivityManager; 72import android.net.ProxyInfo; 73import android.net.Uri; 74import android.net.wifi.WifiInfo; 75import android.net.wifi.WifiManager; 76import android.os.AsyncTask; 77import android.os.Binder; 78import android.os.Build; 79import android.os.Bundle; 80import android.os.Environment; 81import android.os.FileUtils; 82import android.os.Handler; 83import android.os.IBinder; 84import android.os.Looper; 85import android.os.PersistableBundle; 86import android.os.PowerManager; 87import android.os.PowerManagerInternal; 88import android.os.Process; 89import android.os.RecoverySystem; 90import android.os.RemoteCallback; 91import android.os.RemoteException; 92import android.os.ServiceManager; 93import android.os.SystemClock; 94import android.os.SystemProperties; 95import android.os.UserHandle; 96import android.os.UserManager; 97import android.os.UserManagerInternal; 98import android.os.storage.StorageManager; 99import android.provider.ContactsContract.QuickContact; 100import android.provider.ContactsInternal; 101import android.provider.Settings; 102import android.security.Credentials; 103import android.security.IKeyChainAliasCallback; 104import android.security.IKeyChainService; 105import android.security.KeyChain; 106import android.security.KeyChain.KeyChainConnection; 107import android.service.persistentdata.PersistentDataBlockManager; 108import android.text.TextUtils; 109import android.util.ArrayMap; 110import android.util.ArraySet; 111import android.util.Log; 112import android.util.Slog; 113import android.util.SparseArray; 114import android.util.Xml; 115import android.view.IWindowManager; 116import android.view.accessibility.AccessibilityManager; 117import android.view.accessibility.IAccessibilityManager; 118import android.view.inputmethod.InputMethodInfo; 119import android.view.inputmethod.InputMethodManager; 120 121import com.android.internal.R; 122import com.android.internal.annotations.VisibleForTesting; 123import com.android.internal.statusbar.IStatusBarService; 124import com.android.internal.util.FastXmlSerializer; 125import com.android.internal.util.JournaledFile; 126import com.android.internal.util.Preconditions; 127import com.android.internal.util.XmlUtils; 128import com.android.internal.widget.LockPatternUtils; 129import com.android.server.LocalServices; 130import com.android.server.SystemService; 131import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 132import com.android.server.pm.UserRestrictionsUtils; 133 134import org.xmlpull.v1.XmlPullParser; 135import org.xmlpull.v1.XmlPullParserException; 136import org.xmlpull.v1.XmlSerializer; 137 138import java.io.ByteArrayInputStream; 139import java.io.File; 140import java.io.FileDescriptor; 141import java.io.FileInputStream; 142import java.io.FileNotFoundException; 143import java.io.FileOutputStream; 144import java.io.IOException; 145import java.io.PrintWriter; 146import java.nio.charset.StandardCharsets; 147import java.security.cert.CertificateException; 148import java.security.cert.CertificateFactory; 149import java.security.cert.X509Certificate; 150import java.text.DateFormat; 151import java.util.ArrayList; 152import java.util.Arrays; 153import java.util.Collections; 154import java.util.Date; 155import java.util.List; 156import java.util.Map.Entry; 157import java.util.Set; 158 159/** 160 * Implementation of the device policy APIs. 161 */ 162public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 163 164 private static final String LOG_TAG = "DevicePolicyManagerService"; 165 166 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 167 168 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 169 170 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 171 172 private static final String TAG_STATUS_BAR = "statusbar"; 173 174 private static final String ATTR_DISABLED = "disabled"; 175 176 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 177 "do-not-ask-credentials-on-boot"; 178 179 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 180 181 private static final long MS_PER_DAY = 86400 * 1000; 182 183 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 184 185 protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 186 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 187 188 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 189 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 190 191 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 192 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 193 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 194 195 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 196 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 197 = "application-restrictions-manager"; 198 199 private static final int STATUS_BAR_DISABLE_MASK = 200 StatusBarManager.DISABLE_EXPAND | 201 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 202 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 203 StatusBarManager.DISABLE_SEARCH; 204 205 private static final int STATUS_BAR_DISABLE2_MASK = 206 StatusBarManager.DISABLE2_QUICK_SETTINGS; 207 208 private static final Set<String> SECURE_SETTINGS_WHITELIST; 209 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 210 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 211 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 212 static { 213 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 214 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 215 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 216 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 217 218 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 219 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 220 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 221 222 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 223 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 224 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 225 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 226 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 227 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 228 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 229 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 230 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 231 232 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 233 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 234 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 235 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 236 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 237 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 238 } 239 240 // Keyguard features that when set of a profile will affect the profiles 241 // parent user. 242 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 243 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 244 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 245 246 // Keyguard features that are allowed to be set on a managed profile 247 private static final int PROFILE_KEYGUARD_FEATURES = 248 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER 249 | DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 250 251 final Context mContext; 252 final Injector mInjector; 253 final IPackageManager mIPackageManager; 254 final UserManager mUserManager; 255 final UserManagerInternal mUserManagerInternal; 256 257 final LocalService mLocalService; 258 259 // Stores and loads state on device and profile owners. 260 @VisibleForTesting 261 final Owners mOwners; 262 263 private final Binder mToken = new Binder(); 264 265 /** 266 * Whether or not device admin feature is supported. If it isn't return defaults for all 267 * public methods. 268 */ 269 private boolean mHasFeature; 270 271 public static final class Lifecycle extends SystemService { 272 private DevicePolicyManagerService mService; 273 274 public Lifecycle(Context context) { 275 super(context); 276 mService = new DevicePolicyManagerService(context); 277 } 278 279 @Override 280 public void onStart() { 281 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 282 } 283 284 @Override 285 public void onBootPhase(int phase) { 286 mService.systemReady(phase); 287 } 288 289 @Override 290 public void onStartUser(int userHandle) { 291 mService.onStartUser(userHandle); 292 } 293 } 294 295 public static class DevicePolicyData { 296 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 297 int mActivePasswordLength = 0; 298 int mActivePasswordUpperCase = 0; 299 int mActivePasswordLowerCase = 0; 300 int mActivePasswordLetters = 0; 301 int mActivePasswordNumeric = 0; 302 int mActivePasswordSymbols = 0; 303 int mActivePasswordNonLetter = 0; 304 int mFailedPasswordAttempts = 0; 305 306 int mUserHandle; 307 int mPasswordOwner = -1; 308 long mLastMaximumTimeToLock = -1; 309 boolean mUserSetupComplete = false; 310 int mPermissionPolicy; 311 312 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 313 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 314 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 315 316 // This is the list of component allowed to start lock task mode. 317 List<String> mLockTaskPackages = new ArrayList<>(); 318 319 boolean mStatusBarDisabled = false; 320 321 ComponentName mRestrictionsProvider; 322 323 String mDelegatedCertInstallerPackage; 324 325 boolean doNotAskCredentialsOnBoot = false; 326 327 String mApplicationRestrictionsManagingPackage; 328 329 public DevicePolicyData(int userHandle) { 330 mUserHandle = userHandle; 331 } 332 } 333 334 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 335 336 final Handler mHandler; 337 338 BroadcastReceiver mReceiver = new BroadcastReceiver() { 339 @Override 340 public void onReceive(Context context, Intent intent) { 341 final String action = intent.getAction(); 342 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 343 getSendingUserId()); 344 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 345 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 346 if (VERBOSE_LOG) { 347 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 348 + action + " for user " + userHandle); 349 } 350 mHandler.post(new Runnable() { 351 @Override 352 public void run() { 353 handlePasswordExpirationNotification(userHandle); 354 } 355 }); 356 } 357 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 358 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 359 new MonitoringCertNotificationTask().execute(intent); 360 } 361 if (Intent.ACTION_USER_REMOVED.equals(action)) { 362 removeUserData(userHandle); 363 } else if (Intent.ACTION_USER_STARTED.equals(action) 364 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 365 366 if (Intent.ACTION_USER_STARTED.equals(action)) { 367 // Reset the policy data 368 synchronized (DevicePolicyManagerService.this) { 369 mUserData.remove(userHandle); 370 } 371 } 372 handlePackagesChanged(null /* check all admins */, userHandle); 373 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 374 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 375 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 376 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 377 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 378 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 379 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 380 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 381 clearWipeProfileNotification(); 382 } 383 } 384 }; 385 386 static class ActiveAdmin { 387 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 388 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 389 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 390 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 391 = "disable-bt-contacts-sharing"; 392 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 393 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 394 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 395 private static final String TAG_ACCOUNT_TYPE = "account-type"; 396 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 397 = "permitted-accessiblity-services"; 398 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 399 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 400 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 401 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 402 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 403 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 404 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 405 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 406 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 407 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 408 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 409 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 410 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 411 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 412 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 413 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 414 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 415 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 416 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 417 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 418 private static final String ATTR_VALUE = "value"; 419 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 420 private static final String TAG_POLICIES = "policies"; 421 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 422 "cross-profile-widget-providers"; 423 private static final String TAG_PROVIDER = "provider"; 424 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 425 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 426 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 427 428 final DeviceAdminInfo info; 429 430 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 431 432 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 433 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 434 435 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 436 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 437 438 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 439 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 440 441 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 442 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 443 444 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 445 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 446 447 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 448 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 449 450 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 451 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 452 453 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 454 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 455 456 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 457 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 458 459 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 460 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 461 462 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 463 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 464 465 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 466 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 467 468 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 469 470 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 471 472 boolean encryptionRequested = false; 473 boolean disableCamera = false; 474 boolean disableCallerId = false; 475 boolean disableBluetoothContactSharing = true; 476 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 477 boolean requireAutoTime = false; // Can only be set by a device owner. 478 479 static class TrustAgentInfo { 480 public PersistableBundle options; 481 TrustAgentInfo(PersistableBundle bundle) { 482 options = bundle; 483 } 484 } 485 486 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 487 488 // The list of permitted accessibility services package namesas set by a profile 489 // or device owner. Null means all accessibility services are allowed, empty means 490 // none except system services are allowed. 491 List<String> permittedAccessiblityServices; 492 493 // The list of permitted input methods package names as set by a profile or device owner. 494 // Null means all input methods are allowed, empty means none except system imes are 495 // allowed. 496 List<String> permittedInputMethods; 497 498 // List of package names to keep cached. 499 List<String> keepUninstalledPackages; 500 501 // TODO: review implementation decisions with frameworks team 502 boolean specifiesGlobalProxy = false; 503 String globalProxySpec = null; 504 String globalProxyExclusionList = null; 505 506 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 507 508 List<String> crossProfileWidgetProviders; 509 510 Bundle userRestrictions; 511 512 ActiveAdmin(DeviceAdminInfo _info) { 513 info = _info; 514 } 515 516 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 517 518 public UserHandle getUserHandle() { 519 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 520 } 521 522 void writeToXml(XmlSerializer out) 523 throws IllegalArgumentException, IllegalStateException, IOException { 524 out.startTag(null, TAG_POLICIES); 525 info.writePoliciesToXml(out); 526 out.endTag(null, TAG_POLICIES); 527 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 528 out.startTag(null, TAG_PASSWORD_QUALITY); 529 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 530 out.endTag(null, TAG_PASSWORD_QUALITY); 531 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 532 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 533 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 534 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 535 } 536 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 537 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 538 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 539 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 540 } 541 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 542 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 543 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 544 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 545 } 546 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 547 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 548 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 549 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 550 } 551 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 552 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 553 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 554 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 555 } 556 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 557 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 558 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 559 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 560 } 561 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 562 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 563 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 564 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 565 } 566 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 567 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 568 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 569 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 570 } 571 } 572 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 573 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 574 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 575 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 576 } 577 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 578 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 579 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 580 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 581 } 582 if (specifiesGlobalProxy) { 583 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 584 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 585 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 586 if (globalProxySpec != null) { 587 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 588 out.attribute(null, ATTR_VALUE, globalProxySpec); 589 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 590 } 591 if (globalProxyExclusionList != null) { 592 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 593 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 594 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 595 } 596 } 597 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 598 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 599 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 600 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 601 } 602 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 603 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 604 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 605 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 606 } 607 if (encryptionRequested) { 608 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 609 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 610 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 611 } 612 if (disableCamera) { 613 out.startTag(null, TAG_DISABLE_CAMERA); 614 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 615 out.endTag(null, TAG_DISABLE_CAMERA); 616 } 617 if (disableCallerId) { 618 out.startTag(null, TAG_DISABLE_CALLER_ID); 619 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 620 out.endTag(null, TAG_DISABLE_CALLER_ID); 621 } 622 if (disableBluetoothContactSharing) { 623 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 624 out.attribute(null, ATTR_VALUE, 625 Boolean.toString(disableBluetoothContactSharing)); 626 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 627 } 628 if (disableScreenCapture) { 629 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 630 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 631 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 632 } 633 if (requireAutoTime) { 634 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 635 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 636 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 637 } 638 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 639 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 640 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 641 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 642 } 643 if (!accountTypesWithManagementDisabled.isEmpty()) { 644 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 645 for (String ac : accountTypesWithManagementDisabled) { 646 out.startTag(null, TAG_ACCOUNT_TYPE); 647 out.attribute(null, ATTR_VALUE, ac); 648 out.endTag(null, TAG_ACCOUNT_TYPE); 649 } 650 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 651 } 652 if (!trustAgentInfos.isEmpty()) { 653 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 654 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 655 for (Entry<String, TrustAgentInfo> entry : set) { 656 TrustAgentInfo trustAgentInfo = entry.getValue(); 657 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 658 out.attribute(null, ATTR_VALUE, entry.getKey()); 659 if (trustAgentInfo.options != null) { 660 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 661 try { 662 trustAgentInfo.options.saveToXml(out); 663 } catch (XmlPullParserException e) { 664 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 665 } 666 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 667 } 668 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 669 } 670 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 671 } 672 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 673 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 674 final int providerCount = crossProfileWidgetProviders.size(); 675 for (int i = 0; i < providerCount; i++) { 676 String provider = crossProfileWidgetProviders.get(i); 677 out.startTag(null, TAG_PROVIDER); 678 out.attribute(null, ATTR_VALUE, provider); 679 out.endTag(null, TAG_PROVIDER); 680 } 681 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 682 } 683 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 684 permittedAccessiblityServices); 685 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 686 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 687 if (hasUserRestrictions()) { 688 UserRestrictionsUtils.writeRestrictions( 689 out, userRestrictions, TAG_USER_RESTRICTIONS); 690 } 691 } 692 693 void writePackageListToXml(XmlSerializer out, String outerTag, 694 List<String> packageList) 695 throws IllegalArgumentException, IllegalStateException, IOException { 696 if (packageList == null) { 697 return; 698 } 699 700 out.startTag(null, outerTag); 701 for (String packageName : packageList) { 702 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 703 out.attribute(null, ATTR_VALUE, packageName); 704 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 705 } 706 out.endTag(null, outerTag); 707 } 708 709 void readFromXml(XmlPullParser parser) 710 throws XmlPullParserException, IOException { 711 int outerDepth = parser.getDepth(); 712 int type; 713 while ((type=parser.next()) != END_DOCUMENT 714 && (type != END_TAG || parser.getDepth() > outerDepth)) { 715 if (type == END_TAG || type == TEXT) { 716 continue; 717 } 718 String tag = parser.getName(); 719 if (TAG_POLICIES.equals(tag)) { 720 info.readPoliciesFromXml(parser); 721 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 722 passwordQuality = Integer.parseInt( 723 parser.getAttributeValue(null, ATTR_VALUE)); 724 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 725 minimumPasswordLength = Integer.parseInt( 726 parser.getAttributeValue(null, ATTR_VALUE)); 727 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 728 passwordHistoryLength = Integer.parseInt( 729 parser.getAttributeValue(null, ATTR_VALUE)); 730 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 731 minimumPasswordUpperCase = Integer.parseInt( 732 parser.getAttributeValue(null, ATTR_VALUE)); 733 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 734 minimumPasswordLowerCase = Integer.parseInt( 735 parser.getAttributeValue(null, ATTR_VALUE)); 736 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 737 minimumPasswordLetters = Integer.parseInt( 738 parser.getAttributeValue(null, ATTR_VALUE)); 739 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 740 minimumPasswordNumeric = Integer.parseInt( 741 parser.getAttributeValue(null, ATTR_VALUE)); 742 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 743 minimumPasswordSymbols = Integer.parseInt( 744 parser.getAttributeValue(null, ATTR_VALUE)); 745 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 746 minimumPasswordNonLetter = Integer.parseInt( 747 parser.getAttributeValue(null, ATTR_VALUE)); 748 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 749 maximumTimeToUnlock = Long.parseLong( 750 parser.getAttributeValue(null, ATTR_VALUE)); 751 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 752 maximumFailedPasswordsForWipe = Integer.parseInt( 753 parser.getAttributeValue(null, ATTR_VALUE)); 754 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 755 specifiesGlobalProxy = Boolean.parseBoolean( 756 parser.getAttributeValue(null, ATTR_VALUE)); 757 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 758 globalProxySpec = 759 parser.getAttributeValue(null, ATTR_VALUE); 760 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 761 globalProxyExclusionList = 762 parser.getAttributeValue(null, ATTR_VALUE); 763 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 764 passwordExpirationTimeout = Long.parseLong( 765 parser.getAttributeValue(null, ATTR_VALUE)); 766 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 767 passwordExpirationDate = Long.parseLong( 768 parser.getAttributeValue(null, ATTR_VALUE)); 769 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 770 encryptionRequested = Boolean.parseBoolean( 771 parser.getAttributeValue(null, ATTR_VALUE)); 772 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 773 disableCamera = Boolean.parseBoolean( 774 parser.getAttributeValue(null, ATTR_VALUE)); 775 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 776 disableCallerId = Boolean.parseBoolean( 777 parser.getAttributeValue(null, ATTR_VALUE)); 778 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 779 disableBluetoothContactSharing = Boolean.parseBoolean(parser 780 .getAttributeValue(null, ATTR_VALUE)); 781 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 782 disableScreenCapture = Boolean.parseBoolean( 783 parser.getAttributeValue(null, ATTR_VALUE)); 784 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 785 requireAutoTime= Boolean.parseBoolean( 786 parser.getAttributeValue(null, ATTR_VALUE)); 787 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 788 disabledKeyguardFeatures = Integer.parseInt( 789 parser.getAttributeValue(null, ATTR_VALUE)); 790 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 791 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 792 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 793 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 794 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 795 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 796 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 797 permittedAccessiblityServices = readPackageList(parser, tag); 798 } else if (TAG_PERMITTED_IMES.equals(tag)) { 799 permittedInputMethods = readPackageList(parser, tag); 800 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 801 keepUninstalledPackages = readPackageList(parser, tag); 802 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 803 UserRestrictionsUtils.readRestrictions(parser, ensureUserRestrictions()); 804 } else { 805 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 806 XmlUtils.skipCurrentTag(parser); 807 } 808 } 809 } 810 811 private List<String> readPackageList(XmlPullParser parser, 812 String tag) throws XmlPullParserException, IOException { 813 List<String> result = new ArrayList<String>(); 814 int outerDepth = parser.getDepth(); 815 int outerType; 816 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 817 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 818 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 819 continue; 820 } 821 String outerTag = parser.getName(); 822 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 823 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 824 if (packageName != null) { 825 result.add(packageName); 826 } else { 827 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 828 } 829 } else { 830 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 831 } 832 } 833 return result; 834 } 835 836 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 837 throws XmlPullParserException, IOException { 838 int outerDepthDAM = parser.getDepth(); 839 int typeDAM; 840 Set<String> result = new ArraySet<>(); 841 while ((typeDAM=parser.next()) != END_DOCUMENT 842 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 843 if (typeDAM == END_TAG || typeDAM == TEXT) { 844 continue; 845 } 846 String tagDAM = parser.getName(); 847 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 848 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 849 } else { 850 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 851 } 852 } 853 return result; 854 } 855 856 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 857 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 858 int outerDepthDAM = parser.getDepth(); 859 int typeDAM; 860 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 861 while ((typeDAM=parser.next()) != END_DOCUMENT 862 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 863 if (typeDAM == END_TAG || typeDAM == TEXT) { 864 continue; 865 } 866 String tagDAM = parser.getName(); 867 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 868 final String component = parser.getAttributeValue(null, ATTR_VALUE); 869 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 870 result.put(component, trustAgentInfo); 871 } else { 872 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 873 } 874 } 875 return result; 876 } 877 878 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 879 throws XmlPullParserException, IOException { 880 int outerDepthDAM = parser.getDepth(); 881 int typeDAM; 882 TrustAgentInfo result = new TrustAgentInfo(null); 883 while ((typeDAM=parser.next()) != END_DOCUMENT 884 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 885 if (typeDAM == END_TAG || typeDAM == TEXT) { 886 continue; 887 } 888 String tagDAM = parser.getName(); 889 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 890 PersistableBundle bundle = new PersistableBundle(); 891 bundle.restoreFromXml(parser); 892 result.options = bundle; 893 } else { 894 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 895 } 896 } 897 return result; 898 } 899 900 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 901 throws XmlPullParserException, IOException { 902 int outerDepthDAM = parser.getDepth(); 903 int typeDAM; 904 ArrayList<String> result = null; 905 while ((typeDAM=parser.next()) != END_DOCUMENT 906 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 907 if (typeDAM == END_TAG || typeDAM == TEXT) { 908 continue; 909 } 910 String tagDAM = parser.getName(); 911 if (TAG_PROVIDER.equals(tagDAM)) { 912 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 913 if (result == null) { 914 result = new ArrayList<>(); 915 } 916 result.add(provider); 917 } else { 918 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 919 } 920 } 921 return result; 922 } 923 924 boolean hasUserRestrictions() { 925 return userRestrictions != null && userRestrictions.size() > 0; 926 } 927 928 Bundle ensureUserRestrictions() { 929 if (userRestrictions == null) { 930 userRestrictions = new Bundle(); 931 } 932 return userRestrictions; 933 } 934 935 void dump(String prefix, PrintWriter pw) { 936 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 937 pw.print(prefix); pw.println("policies:"); 938 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 939 if (pols != null) { 940 for (int i=0; i<pols.size(); i++) { 941 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 942 } 943 } 944 pw.print(prefix); pw.print("passwordQuality=0x"); 945 pw.println(Integer.toHexString(passwordQuality)); 946 pw.print(prefix); pw.print("minimumPasswordLength="); 947 pw.println(minimumPasswordLength); 948 pw.print(prefix); pw.print("passwordHistoryLength="); 949 pw.println(passwordHistoryLength); 950 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 951 pw.println(minimumPasswordUpperCase); 952 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 953 pw.println(minimumPasswordLowerCase); 954 pw.print(prefix); pw.print("minimumPasswordLetters="); 955 pw.println(minimumPasswordLetters); 956 pw.print(prefix); pw.print("minimumPasswordNumeric="); 957 pw.println(minimumPasswordNumeric); 958 pw.print(prefix); pw.print("minimumPasswordSymbols="); 959 pw.println(minimumPasswordSymbols); 960 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 961 pw.println(minimumPasswordNonLetter); 962 pw.print(prefix); pw.print("maximumTimeToUnlock="); 963 pw.println(maximumTimeToUnlock); 964 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 965 pw.println(maximumFailedPasswordsForWipe); 966 pw.print(prefix); pw.print("specifiesGlobalProxy="); 967 pw.println(specifiesGlobalProxy); 968 pw.print(prefix); pw.print("passwordExpirationTimeout="); 969 pw.println(passwordExpirationTimeout); 970 pw.print(prefix); pw.print("passwordExpirationDate="); 971 pw.println(passwordExpirationDate); 972 if (globalProxySpec != null) { 973 pw.print(prefix); pw.print("globalProxySpec="); 974 pw.println(globalProxySpec); 975 } 976 if (globalProxyExclusionList != null) { 977 pw.print(prefix); pw.print("globalProxyEclusionList="); 978 pw.println(globalProxyExclusionList); 979 } 980 pw.print(prefix); pw.print("encryptionRequested="); 981 pw.println(encryptionRequested); 982 pw.print(prefix); pw.print("disableCamera="); 983 pw.println(disableCamera); 984 pw.print(prefix); pw.print("disableCallerId="); 985 pw.println(disableCallerId); 986 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 987 pw.println(disableBluetoothContactSharing); 988 pw.print(prefix); pw.print("disableScreenCapture="); 989 pw.println(disableScreenCapture); 990 pw.print(prefix); pw.print("requireAutoTime="); 991 pw.println(requireAutoTime); 992 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 993 pw.println(disabledKeyguardFeatures); 994 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 995 pw.println(crossProfileWidgetProviders); 996 if (permittedAccessiblityServices != null) { 997 pw.print(prefix); pw.print("permittedAccessibilityServices="); 998 pw.println(permittedAccessiblityServices); 999 } 1000 if (permittedInputMethods != null) { 1001 pw.print(prefix); pw.print("permittedInputMethods="); 1002 pw.println(permittedInputMethods); 1003 } 1004 if (keepUninstalledPackages != null) { 1005 pw.print(prefix); pw.print("keepUninstalledPackages="); 1006 pw.println(keepUninstalledPackages); 1007 } 1008 pw.print(prefix); pw.println("userRestrictions:"); 1009 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1010 } 1011 } 1012 1013 private void handlePackagesChanged(String packageName, int userHandle) { 1014 boolean removed = false; 1015 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1016 DevicePolicyData policy = getUserData(userHandle); 1017 synchronized (this) { 1018 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1019 ActiveAdmin aa = policy.mAdminList.get(i); 1020 try { 1021 // If we're checking all packages or if the specific one we're checking matches, 1022 // then check if the package and receiver still exist. 1023 final String adminPackage = aa.info.getPackageName(); 1024 if (packageName == null || packageName.equals(adminPackage)) { 1025 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1026 || mIPackageManager.getReceiverInfo( 1027 aa.info.getComponent(), 0, userHandle) == null) { 1028 removed = true; 1029 policy.mAdminList.remove(i); 1030 policy.mAdminMap.remove(aa.info.getComponent()); 1031 } 1032 } 1033 } catch (RemoteException re) { 1034 // Shouldn't happen 1035 } 1036 } 1037 if (removed) { 1038 validatePasswordOwnerLocked(policy); 1039 saveSettingsLocked(policy.mUserHandle); 1040 } 1041 1042 // Check if delegated cert installer or app restrictions managing packages are removed. 1043 if (isRemovedPackage(packageName, policy.mDelegatedCertInstallerPackage, userHandle)) { 1044 policy.mDelegatedCertInstallerPackage = null; 1045 saveSettingsLocked(policy.mUserHandle); 1046 } 1047 if (isRemovedPackage( 1048 packageName, policy.mApplicationRestrictionsManagingPackage, userHandle)) { 1049 policy.mApplicationRestrictionsManagingPackage = null; 1050 saveSettingsLocked(policy.mUserHandle); 1051 } 1052 } 1053 if (removed) { 1054 // The removed admin might have disabled camera, so update user restrictions. 1055 pushUserRestrictions(userHandle); 1056 } 1057 } 1058 1059 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1060 try { 1061 return targetPackage != null 1062 && (changedPackage == null || changedPackage.equals(targetPackage)) 1063 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1064 } catch (RemoteException e) { 1065 // Shouldn't happen 1066 } 1067 1068 return false; 1069 } 1070 1071 /** 1072 * Unit test will subclass it to inject mocks. 1073 */ 1074 @VisibleForTesting 1075 static class Injector { 1076 1077 private final Context mContext; 1078 1079 Injector(Context context) { 1080 mContext = context; 1081 } 1082 1083 Owners newOwners() { 1084 return new Owners(mContext, getUserManager(), getUserManagerInternal()); 1085 } 1086 1087 UserManager getUserManager() { 1088 return UserManager.get(mContext); 1089 } 1090 1091 UserManagerInternal getUserManagerInternal() { 1092 return LocalServices.getService(UserManagerInternal.class); 1093 } 1094 1095 PackageManagerInternal getPackageManagerInternal() { 1096 return LocalServices.getService(PackageManagerInternal.class); 1097 } 1098 1099 NotificationManager getNotificationManager() { 1100 return mContext.getSystemService(NotificationManager.class); 1101 } 1102 1103 PowerManagerInternal getPowerManagerInternal() { 1104 return LocalServices.getService(PowerManagerInternal.class); 1105 } 1106 1107 IWindowManager getIWindowManager() { 1108 return IWindowManager.Stub 1109 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1110 } 1111 1112 IActivityManager getIActivityManager() { 1113 return ActivityManagerNative.getDefault(); 1114 } 1115 1116 IPackageManager getIPackageManager() { 1117 return AppGlobals.getPackageManager(); 1118 } 1119 1120 IBackupManager getIBackupManager() { 1121 return IBackupManager.Stub.asInterface( 1122 ServiceManager.getService(Context.BACKUP_SERVICE)); 1123 } 1124 1125 IAudioService getIAudioService() { 1126 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1127 } 1128 1129 LockPatternUtils newLockPatternUtils() { 1130 return new LockPatternUtils(mContext); 1131 } 1132 1133 Looper getMyLooper() { 1134 return Looper.myLooper(); 1135 } 1136 1137 WifiManager getWifiManager() { 1138 return mContext.getSystemService(WifiManager.class); 1139 } 1140 1141 long binderClearCallingIdentity() { 1142 return Binder.clearCallingIdentity(); 1143 } 1144 1145 void binderRestoreCallingIdentity(long token) { 1146 Binder.restoreCallingIdentity(token); 1147 } 1148 1149 int binderGetCallingUid() { 1150 return Binder.getCallingUid(); 1151 } 1152 1153 int binderGetCallingPid() { 1154 return Binder.getCallingPid(); 1155 } 1156 1157 UserHandle binderGetCallingUserHandle() { 1158 return Binder.getCallingUserHandle(); 1159 } 1160 1161 boolean binderIsCallingUidMyUid() { 1162 return getCallingUid() == Process.myUid(); 1163 } 1164 1165 final int userHandleGetCallingUserId() { 1166 return UserHandle.getUserId(binderGetCallingUid()); 1167 } 1168 1169 File environmentGetUserSystemDirectory(int userId) { 1170 return Environment.getUserSystemDirectory(userId); 1171 } 1172 1173 void powerManagerGoToSleep(long time, int reason, int flags) { 1174 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1175 } 1176 1177 void powerManagerReboot(String reason) { 1178 mContext.getSystemService(PowerManager.class).reboot(reason); 1179 } 1180 1181 boolean systemPropertiesGetBoolean(String key, boolean def) { 1182 return SystemProperties.getBoolean(key, def); 1183 } 1184 1185 long systemPropertiesGetLong(String key, long def) { 1186 return SystemProperties.getLong(key, def); 1187 } 1188 1189 String systemPropertiesGet(String key, String def) { 1190 return SystemProperties.get(key, def); 1191 } 1192 1193 String systemPropertiesGet(String key) { 1194 return SystemProperties.get(key); 1195 } 1196 1197 void systemPropertiesSet(String key, String value) { 1198 SystemProperties.set(key, value); 1199 } 1200 1201 boolean userManagerIsSplitSystemUser() { 1202 return UserManager.isSplitSystemUser(); 1203 } 1204 1205 String getDevicePolicyFilePathForSystemUser() { 1206 return "/data/system/"; 1207 } 1208 1209 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1210 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1211 name, def, userHandle); 1212 } 1213 1214 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1215 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1216 name, value, userHandle); 1217 } 1218 1219 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1220 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1221 name, value, userHandle); 1222 } 1223 1224 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1225 Settings.Global.putStringForUser(mContext.getContentResolver(), 1226 name, value, userHandle); 1227 } 1228 1229 void settingsSecurePutInt(String name, int value) { 1230 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1231 } 1232 1233 int settingsGlobalGetInt(String name, int def) { 1234 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1235 } 1236 1237 void settingsGlobalPutInt(String name, int value) { 1238 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1239 } 1240 1241 void settingsSecurePutString(String name, String value) { 1242 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1243 } 1244 1245 void settingsGlobalPutString(String name, String value) { 1246 Settings.Global.putString(mContext.getContentResolver(), name, value); 1247 } 1248 } 1249 1250 /** 1251 * Instantiates the service. 1252 */ 1253 public DevicePolicyManagerService(Context context) { 1254 this(new Injector(context)); 1255 } 1256 1257 @VisibleForTesting 1258 DevicePolicyManagerService(Injector injector) { 1259 mInjector = injector; 1260 mContext = Preconditions.checkNotNull(injector.mContext); 1261 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1262 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1263 1264 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1265 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1266 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1267 1268 mLocalService = new LocalService(); 1269 1270 mHasFeature = mContext.getPackageManager() 1271 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1272 if (!mHasFeature) { 1273 // Skip the rest of the initialization 1274 return; 1275 } 1276 IntentFilter filter = new IntentFilter(); 1277 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1278 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1279 filter.addAction(Intent.ACTION_USER_REMOVED); 1280 filter.addAction(Intent.ACTION_USER_STARTED); 1281 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1282 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1283 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1284 filter = new IntentFilter(); 1285 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1286 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1287 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1288 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1289 filter.addDataScheme("package"); 1290 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1291 filter = new IntentFilter(); 1292 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1293 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1294 1295 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1296 } 1297 1298 /** 1299 * Creates and loads the policy data from xml. 1300 * @param userHandle the user for whom to load the policy data 1301 * @return 1302 */ 1303 @NonNull 1304 DevicePolicyData getUserData(int userHandle) { 1305 synchronized (this) { 1306 DevicePolicyData policy = mUserData.get(userHandle); 1307 if (policy == null) { 1308 policy = new DevicePolicyData(userHandle); 1309 mUserData.append(userHandle, policy); 1310 loadSettingsLocked(policy, userHandle); 1311 } 1312 return policy; 1313 } 1314 } 1315 1316 /** 1317 * Creates and loads the policy data from xml for data that is shared between 1318 * various profiles of a user. In contrast to {@link #getUserData(int)} 1319 * it allows access to data of users other than the calling user. 1320 * 1321 * This function should only be used for shared data, e.g. everything regarding 1322 * passwords and should be removed once multiple screen locks are present. 1323 * @param userHandle the user for whom to load the policy data 1324 * @return 1325 */ 1326 DevicePolicyData getUserDataUnchecked(int userHandle) { 1327 long ident = mInjector.binderClearCallingIdentity(); 1328 try { 1329 return getUserData(userHandle); 1330 } finally { 1331 mInjector.binderRestoreCallingIdentity(ident); 1332 } 1333 } 1334 1335 void removeUserData(int userHandle) { 1336 synchronized (this) { 1337 if (userHandle == UserHandle.USER_SYSTEM) { 1338 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1339 return; 1340 } 1341 mOwners.removeProfileOwner(userHandle); 1342 mOwners.writeProfileOwner(userHandle); 1343 1344 DevicePolicyData policy = mUserData.get(userHandle); 1345 if (policy != null) { 1346 mUserData.remove(userHandle); 1347 } 1348 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1349 DEVICE_POLICIES_XML); 1350 policyFile.delete(); 1351 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1352 } 1353 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1354 } 1355 1356 void loadOwners() { 1357 synchronized (this) { 1358 mOwners.load(); 1359 findOwnerComponentIfNecessaryLocked(); 1360 migrateUserRestrictionsIfNecessaryLocked(); 1361 1362 // TODO PO may not have a class name either due to b/17652534. Address that too. 1363 1364 updateDeviceOwnerLocked(); 1365 } 1366 } 1367 1368 private void findOwnerComponentIfNecessaryLocked() { 1369 if (!mOwners.hasDeviceOwner()) { 1370 return; 1371 } 1372 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1373 1374 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1375 return; // Already a full component name. 1376 } 1377 1378 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1379 doComponentName.getPackageName(), 1380 mOwners.getDeviceOwnerUserId()); 1381 if (doComponent == null) { 1382 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1383 } else { 1384 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1385 doComponent, 1386 mOwners.getDeviceOwnerName(), 1387 mOwners.getDeviceOwnerUserId(), 1388 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1389 mOwners.writeDeviceOwner(); 1390 if (VERBOSE_LOG) { 1391 Log.v(LOG_TAG, "Device owner component filled in"); 1392 } 1393 } 1394 } 1395 1396 /** 1397 * We didn't use to persist user restrictions for each owners but only persisted in user 1398 * manager. 1399 */ 1400 private void migrateUserRestrictionsIfNecessaryLocked() { 1401 boolean migrated = false; 1402 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1403 // except for the "system controlled" ones. 1404 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1405 if (VERBOSE_LOG) { 1406 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1407 } 1408 migrated = true; 1409 1410 // Migrate user 0 restrictions to DO. 1411 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1412 1413 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1414 /* exceptionList =*/ null); 1415 1416 // Push DO user restrictions to user manager. 1417 pushUserRestrictions(UserHandle.USER_SYSTEM); 1418 1419 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1420 } 1421 1422 // Migrate for POs. We have a few more exceptions. 1423 final Set<String> normalExceptionList = Sets.newArraySet( 1424 UserManager.DISALLOW_OUTGOING_CALLS, 1425 UserManager.DISALLOW_SMS); 1426 1427 final Set<String> managedExceptionList = new ArraySet<>(normalExceptionList.size() + 1); 1428 managedExceptionList.addAll(normalExceptionList); 1429 managedExceptionList.add(UserManager.DISALLOW_WALLPAPER); 1430 1431 for (UserInfo ui : mUserManager.getUsers()) { 1432 final int userId = ui.id; 1433 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1434 if (userId != UserHandle.USER_SYSTEM) { 1435 if (VERBOSE_LOG) { 1436 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1437 } 1438 migrated = true; 1439 1440 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1441 1442 final Set<String> exceptionList = 1443 ui.isManagedProfile() ? managedExceptionList : normalExceptionList; 1444 1445 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1446 exceptionList); 1447 1448 // Note if a secondary user has no PO but has a DA that disables camera, we 1449 // don't get here and won't push the camera user restriction to UserManager 1450 // here. That's okay because we'll push user restrictions anyway when a user 1451 // starts. But we still do it because we want to let user manager persist 1452 // upon migration. 1453 pushUserRestrictions(userId); 1454 } 1455 1456 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1457 } 1458 } 1459 if (VERBOSE_LOG && migrated) { 1460 Log.v(LOG_TAG, "User restrictions migrated."); 1461 } 1462 } 1463 1464 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1465 Set<String> exceptionList) { 1466 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1467 user.getIdentifier()); 1468 1469 final Bundle newBaseRestrictions = new Bundle(); 1470 final Bundle newOwnerRestrictions = new Bundle(); 1471 1472 for (String key : origRestrictions.keySet()) { 1473 if (!origRestrictions.getBoolean(key)) { 1474 continue; 1475 } 1476 if (exceptionList!= null && exceptionList.contains(key)) { 1477 newBaseRestrictions.putBoolean(key, true); 1478 } else { 1479 newOwnerRestrictions.putBoolean(key, true); 1480 } 1481 } 1482 1483 if (VERBOSE_LOG) { 1484 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1485 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 1486 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1487 } 1488 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1489 newBaseRestrictions); 1490 1491 if (admin != null) { 1492 admin.ensureUserRestrictions().clear(); 1493 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1494 } else { 1495 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1496 } 1497 saveSettingsLocked(user.getIdentifier()); 1498 } 1499 1500 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1501 final DevicePolicyData policy = getUserData(userId); 1502 final int n = policy.mAdminList.size(); 1503 ComponentName found = null; 1504 int nFound = 0; 1505 for (int i = 0; i < n; i++) { 1506 final ActiveAdmin admin = policy.mAdminList.get(i); 1507 if (packageName.equals(admin.info.getPackageName())) { 1508 // Found! 1509 if (nFound == 0) { 1510 found = admin.info.getComponent(); 1511 } 1512 nFound++; 1513 } 1514 } 1515 if (nFound > 1) { 1516 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1517 } 1518 return found; 1519 } 1520 1521 /** 1522 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1523 * reminders. Clears alarm if no expirations are configured. 1524 */ 1525 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1526 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1527 final long now = System.currentTimeMillis(); 1528 final long timeToExpire = expiration - now; 1529 final long alarmTime; 1530 if (expiration == 0) { 1531 // No expirations are currently configured: Cancel alarm. 1532 alarmTime = 0; 1533 } else if (timeToExpire <= 0) { 1534 // The password has already expired: Repeat every 24 hours. 1535 alarmTime = now + MS_PER_DAY; 1536 } else { 1537 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1538 // the expiration time. 1539 long alarmInterval = timeToExpire % MS_PER_DAY; 1540 if (alarmInterval == 0) { 1541 alarmInterval = MS_PER_DAY; 1542 } 1543 alarmTime = now + alarmInterval; 1544 } 1545 1546 long token = mInjector.binderClearCallingIdentity(); 1547 try { 1548 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1549 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1550 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1551 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1552 new UserHandle(policy.mUserHandle)); 1553 am.cancel(pi); 1554 if (alarmTime != 0) { 1555 am.set(AlarmManager.RTC, alarmTime, pi); 1556 } 1557 } finally { 1558 mInjector.binderRestoreCallingIdentity(token); 1559 } 1560 } 1561 1562 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1563 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1564 if (admin != null 1565 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1566 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1567 return admin; 1568 } 1569 return null; 1570 } 1571 1572 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1573 throws SecurityException { 1574 final int callingUid = mInjector.binderGetCallingUid(); 1575 1576 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1577 if (result != null) { 1578 return result; 1579 } 1580 1581 if (who != null) { 1582 final int userId = UserHandle.getUserId(callingUid); 1583 final DevicePolicyData policy = getUserData(userId); 1584 ActiveAdmin admin = policy.mAdminMap.get(who); 1585 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1586 throw new SecurityException("Admin " + admin.info.getComponent() 1587 + " does not own the device"); 1588 } 1589 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1590 throw new SecurityException("Admin " + admin.info.getComponent() 1591 + " does not own the profile"); 1592 } 1593 throw new SecurityException("Admin " + admin.info.getComponent() 1594 + " did not specify uses-policy for: " 1595 + admin.info.getTagForPolicy(reqPolicy)); 1596 } else { 1597 throw new SecurityException("No active admin owned by uid " 1598 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 1599 } 1600 } 1601 1602 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1603 int uid) { 1604 // Try to find an admin which can use reqPolicy 1605 final int userId = UserHandle.getUserId(uid); 1606 final DevicePolicyData policy = getUserData(userId); 1607 if (who != null) { 1608 ActiveAdmin admin = policy.mAdminMap.get(who); 1609 if (admin == null) { 1610 throw new SecurityException("No active admin " + who); 1611 } 1612 if (admin.getUid() != uid) { 1613 throw new SecurityException("Admin " + who + " is not owned by uid " 1614 + mInjector.binderGetCallingUid()); 1615 } 1616 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 1617 return admin; 1618 } 1619 } else { 1620 for (ActiveAdmin admin : policy.mAdminList) { 1621 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 1622 userId)) { 1623 return admin; 1624 } 1625 } 1626 } 1627 1628 return null; 1629 } 1630 1631 @VisibleForTesting 1632 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 1633 int userId) { 1634 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 1635 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 1636 1637 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1638 return ownsDevice; 1639 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1640 // DO always has the PO power. 1641 return ownsDevice || ownsProfile; 1642 } else { 1643 return admin.info.usesPolicy(reqPolicy); 1644 } 1645 } 1646 1647 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1648 sendAdminCommandLocked(admin, action, null); 1649 } 1650 1651 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1652 sendAdminCommandLocked(admin, action, null, result); 1653 } 1654 1655 /** 1656 * Send an update to one specific admin, get notified when that admin returns a result. 1657 */ 1658 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1659 BroadcastReceiver result) { 1660 Intent intent = new Intent(action); 1661 intent.setComponent(admin.info.getComponent()); 1662 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1663 intent.putExtra("expiration", admin.passwordExpirationDate); 1664 } 1665 if (adminExtras != null) { 1666 intent.putExtras(adminExtras); 1667 } 1668 if (result != null) { 1669 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1670 null, result, mHandler, Activity.RESULT_OK, null, null); 1671 } else { 1672 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1673 } 1674 } 1675 1676 /** 1677 * Send an update to all admins of a user that enforce a specified policy. 1678 */ 1679 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1680 final DevicePolicyData policy = getUserData(userHandle); 1681 final int count = policy.mAdminList.size(); 1682 if (count > 0) { 1683 for (int i = 0; i < count; i++) { 1684 final ActiveAdmin admin = policy.mAdminList.get(i); 1685 if (admin.info.usesPolicy(reqPolicy)) { 1686 sendAdminCommandLocked(admin, action); 1687 } 1688 } 1689 } 1690 } 1691 1692 /** 1693 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1694 * enforce a specified policy. 1695 */ 1696 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1697 int userHandle) { 1698 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1699 for (UserInfo ui : profiles) { 1700 int id = ui.id; 1701 sendAdminCommandLocked(action, reqPolicy, id); 1702 } 1703 } 1704 1705 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 1706 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1707 if (admin != null) { 1708 synchronized (this) { 1709 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 1710 } 1711 sendAdminCommandLocked(admin, 1712 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1713 new BroadcastReceiver() { 1714 @Override 1715 public void onReceive(Context context, Intent intent) { 1716 synchronized (DevicePolicyManagerService.this) { 1717 int userHandle = admin.getUserHandle().getIdentifier(); 1718 DevicePolicyData policy = getUserData(userHandle); 1719 boolean doProxyCleanup = admin.info.usesPolicy( 1720 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1721 policy.mAdminList.remove(admin); 1722 policy.mAdminMap.remove(adminReceiver); 1723 validatePasswordOwnerLocked(policy); 1724 if (doProxyCleanup) { 1725 resetGlobalProxyLocked(getUserData(userHandle)); 1726 } 1727 saveSettingsLocked(userHandle); 1728 updateMaximumTimeToLockLocked(policy); 1729 policy.mRemovingAdmins.remove(adminReceiver); 1730 } 1731 // The removed admin might have disabled camera, so update user 1732 // restrictions. 1733 pushUserRestrictions(userHandle); 1734 } 1735 }); 1736 } 1737 } 1738 1739 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 1740 boolean throwForMissiongPermission) { 1741 if (!mHasFeature) { 1742 return null; 1743 } 1744 enforceCrossUserPermission(userHandle); 1745 Intent resolveIntent = new Intent(); 1746 resolveIntent.setComponent(adminName); 1747 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1748 resolveIntent, 1749 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1750 userHandle); 1751 if (infos == null || infos.size() <= 0) { 1752 throw new IllegalArgumentException("Unknown admin: " + adminName); 1753 } 1754 1755 final ResolveInfo ri = infos.get(0); 1756 1757 if (!permission.BIND_DEVICE_ADMIN.equals(ri.activityInfo.permission)) { 1758 final String message = "DeviceAdminReceiver " + adminName + " must be protected with" 1759 + permission.BIND_DEVICE_ADMIN; 1760 Slog.w(LOG_TAG, message); 1761 if (throwForMissiongPermission && 1762 ri.activityInfo.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 1763 throw new IllegalArgumentException(message); 1764 } 1765 } 1766 1767 try { 1768 return new DeviceAdminInfo(mContext, ri); 1769 } catch (XmlPullParserException | IOException e) { 1770 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1771 e); 1772 return null; 1773 } 1774 } 1775 1776 private JournaledFile makeJournaledFile(int userHandle) { 1777 final String base = userHandle == UserHandle.USER_SYSTEM 1778 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 1779 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1780 DEVICE_POLICIES_XML).getAbsolutePath(); 1781 if (VERBOSE_LOG) { 1782 Log.v(LOG_TAG, "Opening " + base); 1783 } 1784 return new JournaledFile(new File(base), new File(base + ".tmp")); 1785 } 1786 1787 private void saveSettingsLocked(int userHandle) { 1788 DevicePolicyData policy = getUserData(userHandle); 1789 JournaledFile journal = makeJournaledFile(userHandle); 1790 FileOutputStream stream = null; 1791 try { 1792 stream = new FileOutputStream(journal.chooseForWrite(), false); 1793 XmlSerializer out = new FastXmlSerializer(); 1794 out.setOutput(stream, StandardCharsets.UTF_8.name()); 1795 out.startDocument(null, true); 1796 1797 out.startTag(null, "policies"); 1798 if (policy.mRestrictionsProvider != null) { 1799 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1800 policy.mRestrictionsProvider.flattenToString()); 1801 } 1802 if (policy.mUserSetupComplete) { 1803 out.attribute(null, ATTR_SETUP_COMPLETE, 1804 Boolean.toString(true)); 1805 } 1806 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 1807 out.attribute(null, ATTR_PERMISSION_POLICY, 1808 Integer.toString(policy.mPermissionPolicy)); 1809 } 1810 if (policy.mDelegatedCertInstallerPackage != null) { 1811 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 1812 policy.mDelegatedCertInstallerPackage); 1813 } 1814 if (policy.mApplicationRestrictionsManagingPackage != null) { 1815 out.attribute(null, ATTR_APPLICATION_RESTRICTIONS_MANAGER, 1816 policy.mApplicationRestrictionsManagingPackage); 1817 } 1818 1819 final int N = policy.mAdminList.size(); 1820 for (int i=0; i<N; i++) { 1821 ActiveAdmin ap = policy.mAdminList.get(i); 1822 if (ap != null) { 1823 out.startTag(null, "admin"); 1824 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1825 ap.writeToXml(out); 1826 out.endTag(null, "admin"); 1827 } 1828 } 1829 1830 if (policy.mPasswordOwner >= 0) { 1831 out.startTag(null, "password-owner"); 1832 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1833 out.endTag(null, "password-owner"); 1834 } 1835 1836 if (policy.mFailedPasswordAttempts != 0) { 1837 out.startTag(null, "failed-password-attempts"); 1838 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1839 out.endTag(null, "failed-password-attempts"); 1840 } 1841 1842 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1843 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1844 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1845 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1846 out.startTag(null, "active-password"); 1847 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1848 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1849 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1850 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1851 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1852 out.attribute(null, "numeric", Integer 1853 .toString(policy.mActivePasswordNumeric)); 1854 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1855 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1856 out.endTag(null, "active-password"); 1857 } 1858 1859 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1860 String component = policy.mLockTaskPackages.get(i); 1861 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 1862 out.attribute(null, "name", component); 1863 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 1864 } 1865 1866 if (policy.mStatusBarDisabled) { 1867 out.startTag(null, TAG_STATUS_BAR); 1868 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 1869 out.endTag(null, TAG_STATUS_BAR); 1870 } 1871 1872 if (policy.doNotAskCredentialsOnBoot) { 1873 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1874 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 1875 } 1876 1877 out.endTag(null, "policies"); 1878 1879 out.endDocument(); 1880 stream.flush(); 1881 FileUtils.sync(stream); 1882 stream.close(); 1883 journal.commit(); 1884 sendChangedNotification(userHandle); 1885 } catch (IOException e) { 1886 Slog.w(LOG_TAG, "failed writing file", e); 1887 try { 1888 if (stream != null) { 1889 stream.close(); 1890 } 1891 } catch (IOException ex) { 1892 // Ignore 1893 } 1894 journal.rollback(); 1895 } 1896 } 1897 1898 private void sendChangedNotification(int userHandle) { 1899 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1900 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1901 long ident = mInjector.binderClearCallingIdentity(); 1902 try { 1903 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1904 } finally { 1905 mInjector.binderRestoreCallingIdentity(ident); 1906 } 1907 } 1908 1909 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1910 JournaledFile journal = makeJournaledFile(userHandle); 1911 FileInputStream stream = null; 1912 File file = journal.chooseForRead(); 1913 try { 1914 stream = new FileInputStream(file); 1915 XmlPullParser parser = Xml.newPullParser(); 1916 parser.setInput(stream, StandardCharsets.UTF_8.name()); 1917 1918 int type; 1919 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1920 && type != XmlPullParser.START_TAG) { 1921 } 1922 String tag = parser.getName(); 1923 if (!"policies".equals(tag)) { 1924 throw new XmlPullParserException( 1925 "Settings do not start with policies tag: found " + tag); 1926 } 1927 1928 // Extract the permission provider component name if available 1929 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1930 if (permissionProvider != null) { 1931 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1932 } 1933 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1934 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1935 policy.mUserSetupComplete = true; 1936 } 1937 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 1938 if (!TextUtils.isEmpty(permissionPolicy)) { 1939 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 1940 } 1941 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 1942 ATTR_DELEGATED_CERT_INSTALLER); 1943 policy.mApplicationRestrictionsManagingPackage = parser.getAttributeValue(null, 1944 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 1945 1946 type = parser.next(); 1947 int outerDepth = parser.getDepth(); 1948 policy.mLockTaskPackages.clear(); 1949 policy.mAdminList.clear(); 1950 policy.mAdminMap.clear(); 1951 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1952 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1953 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1954 continue; 1955 } 1956 tag = parser.getName(); 1957 if ("admin".equals(tag)) { 1958 String name = parser.getAttributeValue(null, "name"); 1959 try { 1960 DeviceAdminInfo dai = findAdmin( 1961 ComponentName.unflattenFromString(name), userHandle, 1962 /* throwForMissionPermission= */ false); 1963 if (VERBOSE_LOG 1964 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1965 != userHandle)) { 1966 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1967 + dai.getActivityInfo().applicationInfo.uid + " for user " 1968 + userHandle); 1969 } 1970 if (dai != null) { 1971 ActiveAdmin ap = new ActiveAdmin(dai); 1972 ap.readFromXml(parser); 1973 policy.mAdminMap.put(ap.info.getComponent(), ap); 1974 } 1975 } catch (RuntimeException e) { 1976 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1977 } 1978 } else if ("failed-password-attempts".equals(tag)) { 1979 policy.mFailedPasswordAttempts = Integer.parseInt( 1980 parser.getAttributeValue(null, "value")); 1981 } else if ("password-owner".equals(tag)) { 1982 policy.mPasswordOwner = Integer.parseInt( 1983 parser.getAttributeValue(null, "value")); 1984 } else if ("active-password".equals(tag)) { 1985 policy.mActivePasswordQuality = Integer.parseInt( 1986 parser.getAttributeValue(null, "quality")); 1987 policy.mActivePasswordLength = Integer.parseInt( 1988 parser.getAttributeValue(null, "length")); 1989 policy.mActivePasswordUpperCase = Integer.parseInt( 1990 parser.getAttributeValue(null, "uppercase")); 1991 policy.mActivePasswordLowerCase = Integer.parseInt( 1992 parser.getAttributeValue(null, "lowercase")); 1993 policy.mActivePasswordLetters = Integer.parseInt( 1994 parser.getAttributeValue(null, "letters")); 1995 policy.mActivePasswordNumeric = Integer.parseInt( 1996 parser.getAttributeValue(null, "numeric")); 1997 policy.mActivePasswordSymbols = Integer.parseInt( 1998 parser.getAttributeValue(null, "symbols")); 1999 policy.mActivePasswordNonLetter = Integer.parseInt( 2000 parser.getAttributeValue(null, "nonletter")); 2001 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2002 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2003 } else if (TAG_STATUS_BAR.equals(tag)) { 2004 policy.mStatusBarDisabled = Boolean.parseBoolean( 2005 parser.getAttributeValue(null, ATTR_DISABLED)); 2006 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2007 policy.doNotAskCredentialsOnBoot = true; 2008 } else { 2009 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2010 XmlUtils.skipCurrentTag(parser); 2011 } 2012 } 2013 } catch (FileNotFoundException e) { 2014 // Don't be noisy, this is normal if we haven't defined any policies. 2015 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2016 | IndexOutOfBoundsException e) { 2017 Slog.w(LOG_TAG, "failed parsing " + file, e); 2018 } 2019 try { 2020 if (stream != null) { 2021 stream.close(); 2022 } 2023 } catch (IOException e) { 2024 // Ignore 2025 } 2026 2027 // Generate a list of admins from the admin map 2028 policy.mAdminList.addAll(policy.mAdminMap.values()); 2029 2030 // Validate that what we stored for the password quality matches 2031 // sufficiently what is currently set. Note that this is only 2032 // a sanity check in case the two get out of sync; this should 2033 // never normally happen. 2034 final long identity = mInjector.binderClearCallingIdentity(); 2035 try { 2036 LockPatternUtils utils = mInjector.newLockPatternUtils(); 2037 if (utils.getActivePasswordQuality(userHandle) < policy.mActivePasswordQuality) { 2038 Slog.w(LOG_TAG, "Active password quality 0x" 2039 + Integer.toHexString(policy.mActivePasswordQuality) 2040 + " does not match actual quality 0x" 2041 + Integer.toHexString(utils.getActivePasswordQuality(userHandle))); 2042 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2043 policy.mActivePasswordLength = 0; 2044 policy.mActivePasswordUpperCase = 0; 2045 policy.mActivePasswordLowerCase = 0; 2046 policy.mActivePasswordLetters = 0; 2047 policy.mActivePasswordNumeric = 0; 2048 policy.mActivePasswordSymbols = 0; 2049 policy.mActivePasswordNonLetter = 0; 2050 } 2051 } finally { 2052 mInjector.binderRestoreCallingIdentity(identity); 2053 } 2054 2055 validatePasswordOwnerLocked(policy); 2056 updateMaximumTimeToLockLocked(policy); 2057 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2058 if (policy.mStatusBarDisabled) { 2059 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2060 } 2061 } 2062 2063 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2064 long ident = mInjector.binderClearCallingIdentity(); 2065 try { 2066 mInjector.getIActivityManager() 2067 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2068 } catch (RemoteException e) { 2069 // Not gonna happen. 2070 } finally { 2071 mInjector.binderRestoreCallingIdentity(ident); 2072 } 2073 } 2074 2075 private void updateDeviceOwnerLocked() { 2076 long ident = mInjector.binderClearCallingIdentity(); 2077 try { 2078 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2079 // user id and also protect all other DAs too. 2080 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2081 if (deviceOwnerComponent != null) { 2082 mInjector.getIActivityManager() 2083 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2084 } 2085 } catch (RemoteException e) { 2086 // Not gonna happen. 2087 } finally { 2088 mInjector.binderRestoreCallingIdentity(ident); 2089 } 2090 } 2091 2092 static void validateQualityConstant(int quality) { 2093 switch (quality) { 2094 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2095 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2096 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2097 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2098 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2099 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2100 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2101 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2102 return; 2103 } 2104 throw new IllegalArgumentException("Invalid quality constant: 0x" 2105 + Integer.toHexString(quality)); 2106 } 2107 2108 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2109 if (policy.mPasswordOwner >= 0) { 2110 boolean haveOwner = false; 2111 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2112 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2113 haveOwner = true; 2114 break; 2115 } 2116 } 2117 if (!haveOwner) { 2118 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2119 + " no longer active; disabling"); 2120 policy.mPasswordOwner = -1; 2121 } 2122 } 2123 } 2124 2125 @VisibleForTesting 2126 void systemReady(int phase) { 2127 if (!mHasFeature) { 2128 return; 2129 } 2130 switch (phase) { 2131 case SystemService.PHASE_LOCK_SETTINGS_READY: 2132 onLockSettingsReady(); 2133 break; 2134 case SystemService.PHASE_BOOT_COMPLETED: 2135 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2136 break; 2137 } 2138 } 2139 2140 private void onLockSettingsReady() { 2141 getUserData(UserHandle.USER_SYSTEM); 2142 loadOwners(); 2143 cleanUpOldUsers(); 2144 2145 onStartUser(UserHandle.USER_SYSTEM); 2146 2147 // Register an observer for watching for user setup complete. 2148 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 2149 // Initialize the user setup state, to handle the upgrade case. 2150 updateUserSetupComplete(); 2151 2152 List<String> packageList; 2153 synchronized (this) { 2154 packageList = getKeepUninstalledPackagesLocked(); 2155 } 2156 if (packageList != null) { 2157 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2158 } 2159 } 2160 2161 private void ensureDeviceOwnerUserStarted() { 2162 final int userId; 2163 synchronized (this) { 2164 if (!mOwners.hasDeviceOwner()) { 2165 return; 2166 } 2167 userId = mOwners.getDeviceOwnerUserId(); 2168 } 2169 if (VERBOSE_LOG) { 2170 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2171 } 2172 if (userId != UserHandle.USER_SYSTEM) { 2173 try { 2174 mInjector.getIActivityManager().startUserInBackground(userId); 2175 2176 // STOPSHIP Prevent the DO user from being killed. 2177 2178 } catch (RemoteException e) { 2179 Slog.w(LOG_TAG, "Exception starting user", e); 2180 } 2181 } 2182 } 2183 2184 private void onStartUser(int userId) { 2185 updateScreenCaptureDisabledInWindowManager(userId, 2186 getScreenCaptureDisabled(null, userId)); 2187 pushUserRestrictions(userId); 2188 } 2189 2190 private void cleanUpOldUsers() { 2191 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2192 // before reboot 2193 Set<Integer> usersWithProfileOwners; 2194 Set<Integer> usersWithData; 2195 synchronized(this) { 2196 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2197 usersWithData = new ArraySet<>(); 2198 for (int i = 0; i < mUserData.size(); i++) { 2199 usersWithData.add(mUserData.keyAt(i)); 2200 } 2201 } 2202 List<UserInfo> allUsers = mUserManager.getUsers(); 2203 2204 Set<Integer> deletedUsers = new ArraySet<>(); 2205 deletedUsers.addAll(usersWithProfileOwners); 2206 deletedUsers.addAll(usersWithData); 2207 for (UserInfo userInfo : allUsers) { 2208 deletedUsers.remove(userInfo.id); 2209 } 2210 for (Integer userId : deletedUsers) { 2211 removeUserData(userId); 2212 } 2213 } 2214 2215 private void handlePasswordExpirationNotification(int userHandle) { 2216 synchronized (this) { 2217 final long now = System.currentTimeMillis(); 2218 2219 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2220 for (UserInfo ui : profiles) { 2221 int profileUserHandle = ui.id; 2222 final DevicePolicyData policy = getUserData(profileUserHandle); 2223 final int count = policy.mAdminList.size(); 2224 if (count > 0) { 2225 for (int i = 0; i < count; i++) { 2226 final ActiveAdmin admin = policy.mAdminList.get(i); 2227 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2228 && admin.passwordExpirationTimeout > 0L 2229 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2230 && admin.passwordExpirationDate > 0L) { 2231 sendAdminCommandLocked(admin, 2232 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2233 } 2234 } 2235 } 2236 } 2237 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2238 } 2239 } 2240 2241 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 2242 @Override 2243 protected Void doInBackground(Intent... params) { 2244 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 2245 2246 if (userHandle == UserHandle.USER_ALL) { 2247 for (UserInfo userInfo : mUserManager.getUsers()) { 2248 manageNotification(userInfo.getUserHandle()); 2249 } 2250 } else { 2251 manageNotification(new UserHandle(userHandle)); 2252 } 2253 return null; 2254 } 2255 2256 private void manageNotification(UserHandle userHandle) { 2257 if (!mUserManager.isUserRunning(userHandle)) { 2258 return; 2259 } 2260 2261 // Call out to KeyChain to check for user-added CAs 2262 boolean hasCert = false; 2263 try { 2264 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 2265 try { 2266 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 2267 hasCert = true; 2268 } 2269 } catch (RemoteException e) { 2270 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2271 } finally { 2272 kcs.close(); 2273 } 2274 } catch (InterruptedException e) { 2275 Thread.currentThread().interrupt(); 2276 } catch (RuntimeException e) { 2277 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2278 } 2279 if (!hasCert) { 2280 mInjector.getNotificationManager().cancelAsUser( 2281 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2282 return; 2283 } 2284 2285 // Build and show a warning notification 2286 int smallIconId; 2287 String contentText; 2288 // TODO Why does it use the DO name? The cert APIs are all for PO. b/25772443 2289 final String ownerName = getDeviceOwnerName(); 2290 if (isManagedProfile(userHandle.getIdentifier())) { 2291 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 2292 smallIconId = R.drawable.stat_sys_certificate_info; 2293 } else if (ownerName != null) { 2294 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 2295 smallIconId = R.drawable.stat_sys_certificate_info; 2296 } else { 2297 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2298 smallIconId = android.R.drawable.stat_sys_warning; 2299 } 2300 2301 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2302 dialogIntent.setFlags( 2303 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2304 dialogIntent.setPackage("com.android.settings"); 2305 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2306 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 2307 2308 final Context userContext; 2309 try { 2310 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 2311 } catch (PackageManager.NameNotFoundException e) { 2312 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2313 return; 2314 } 2315 final Notification noti = new Notification.Builder(userContext) 2316 .setSmallIcon(smallIconId) 2317 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 2318 .setContentText(contentText) 2319 .setContentIntent(notifyIntent) 2320 .setPriority(Notification.PRIORITY_HIGH) 2321 .setShowWhen(false) 2322 .setColor(mContext.getColor( 2323 com.android.internal.R.color.system_notification_accent_color)) 2324 .build(); 2325 2326 mInjector.getNotificationManager().notifyAsUser( 2327 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2328 } 2329 } 2330 2331 /** 2332 * @param adminReceiver The admin to add 2333 * @param refreshing true = update an active admin, no error 2334 */ 2335 @Override 2336 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2337 if (!mHasFeature) { 2338 return; 2339 } 2340 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2341 } 2342 2343 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2344 Bundle onEnableData) { 2345 mContext.enforceCallingOrSelfPermission( 2346 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2347 enforceCrossUserPermission(userHandle); 2348 2349 DevicePolicyData policy = getUserData(userHandle); 2350 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 2351 /* throwForMissionPermission= */ true); 2352 if (info == null) { 2353 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2354 } 2355 synchronized (this) { 2356 long ident = mInjector.binderClearCallingIdentity(); 2357 try { 2358 if (!refreshing 2359 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 2360 throw new IllegalArgumentException("Admin is already added"); 2361 } 2362 ActiveAdmin newAdmin = new ActiveAdmin(info); 2363 policy.mAdminMap.put(adminReceiver, newAdmin); 2364 int replaceIndex = -1; 2365 final int N = policy.mAdminList.size(); 2366 for (int i=0; i < N; i++) { 2367 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2368 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2369 replaceIndex = i; 2370 break; 2371 } 2372 } 2373 if (replaceIndex == -1) { 2374 policy.mAdminList.add(newAdmin); 2375 enableIfNecessary(info.getPackageName(), userHandle); 2376 } else { 2377 policy.mAdminList.set(replaceIndex, newAdmin); 2378 } 2379 saveSettingsLocked(userHandle); 2380 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2381 onEnableData, null); 2382 } finally { 2383 mInjector.binderRestoreCallingIdentity(ident); 2384 } 2385 } 2386 } 2387 2388 @Override 2389 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2390 if (!mHasFeature) { 2391 return false; 2392 } 2393 enforceCrossUserPermission(userHandle); 2394 synchronized (this) { 2395 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2396 } 2397 } 2398 2399 @Override 2400 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2401 if (!mHasFeature) { 2402 return false; 2403 } 2404 enforceCrossUserPermission(userHandle); 2405 synchronized (this) { 2406 DevicePolicyData policyData = getUserData(userHandle); 2407 return policyData.mRemovingAdmins.contains(adminReceiver); 2408 } 2409 } 2410 2411 @Override 2412 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2413 if (!mHasFeature) { 2414 return false; 2415 } 2416 enforceCrossUserPermission(userHandle); 2417 synchronized (this) { 2418 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2419 if (administrator == null) { 2420 throw new SecurityException("No active admin " + adminReceiver); 2421 } 2422 return administrator.info.usesPolicy(policyId); 2423 } 2424 } 2425 2426 @Override 2427 @SuppressWarnings("unchecked") 2428 public List<ComponentName> getActiveAdmins(int userHandle) { 2429 if (!mHasFeature) { 2430 return Collections.EMPTY_LIST; 2431 } 2432 2433 enforceCrossUserPermission(userHandle); 2434 synchronized (this) { 2435 DevicePolicyData policy = getUserData(userHandle); 2436 final int N = policy.mAdminList.size(); 2437 if (N <= 0) { 2438 return null; 2439 } 2440 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2441 for (int i=0; i<N; i++) { 2442 res.add(policy.mAdminList.get(i).info.getComponent()); 2443 } 2444 return res; 2445 } 2446 } 2447 2448 @Override 2449 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2450 if (!mHasFeature) { 2451 return false; 2452 } 2453 enforceCrossUserPermission(userHandle); 2454 synchronized (this) { 2455 DevicePolicyData policy = getUserData(userHandle); 2456 final int N = policy.mAdminList.size(); 2457 for (int i=0; i<N; i++) { 2458 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2459 return true; 2460 } 2461 } 2462 return false; 2463 } 2464 } 2465 2466 @Override 2467 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 2468 if (!mHasFeature) { 2469 return; 2470 } 2471 enforceCrossUserPermission(userHandle); 2472 synchronized (this) { 2473 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2474 if (admin == null) { 2475 return; 2476 } 2477 if (admin.getUid() != mInjector.binderGetCallingUid()) { 2478 // Active device/profile owners must remain active admins. 2479 if (isDeviceOwner(adminReceiver, userHandle) 2480 || isProfileOwner(adminReceiver, userHandle)) { 2481 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 2482 adminReceiver); 2483 return; 2484 } 2485 mContext.enforceCallingOrSelfPermission( 2486 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2487 } 2488 long ident = mInjector.binderClearCallingIdentity(); 2489 try { 2490 removeActiveAdminLocked(adminReceiver, userHandle); 2491 } finally { 2492 mInjector.binderRestoreCallingIdentity(ident); 2493 } 2494 } 2495 } 2496 2497 @Override 2498 public void setPasswordQuality(ComponentName who, int quality) { 2499 if (!mHasFeature) { 2500 return; 2501 } 2502 Preconditions.checkNotNull(who, "ComponentName is null"); 2503 final int userHandle = UserHandle.getCallingUserId(); 2504 validateQualityConstant(quality); 2505 2506 synchronized (this) { 2507 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2508 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2509 if (ap.passwordQuality != quality) { 2510 ap.passwordQuality = quality; 2511 saveSettingsLocked(userHandle); 2512 } 2513 } 2514 } 2515 2516 @Override 2517 public int getPasswordQuality(ComponentName who, int userHandle) { 2518 if (!mHasFeature) { 2519 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2520 } 2521 enforceCrossUserPermission(userHandle); 2522 synchronized (this) { 2523 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2524 2525 if (who != null) { 2526 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2527 return admin != null ? admin.passwordQuality : mode; 2528 } 2529 2530 // Return strictest policy for this user and profiles that are visible from this user. 2531 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2532 for (UserInfo userInfo : profiles) { 2533 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2534 final int N = policy.mAdminList.size(); 2535 for (int i=0; i<N; i++) { 2536 ActiveAdmin admin = policy.mAdminList.get(i); 2537 if (mode < admin.passwordQuality) { 2538 mode = admin.passwordQuality; 2539 } 2540 } 2541 } 2542 return mode; 2543 } 2544 } 2545 2546 @Override 2547 public void setPasswordMinimumLength(ComponentName who, int length) { 2548 if (!mHasFeature) { 2549 return; 2550 } 2551 Preconditions.checkNotNull(who, "ComponentName is null"); 2552 final int userHandle = UserHandle.getCallingUserId(); 2553 synchronized (this) { 2554 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2555 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2556 if (ap.minimumPasswordLength != length) { 2557 ap.minimumPasswordLength = length; 2558 saveSettingsLocked(userHandle); 2559 } 2560 } 2561 } 2562 2563 @Override 2564 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 2565 if (!mHasFeature) { 2566 return 0; 2567 } 2568 enforceCrossUserPermission(userHandle); 2569 synchronized (this) { 2570 int length = 0; 2571 2572 if (who != null) { 2573 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2574 return admin != null ? admin.minimumPasswordLength : length; 2575 } 2576 2577 // Return strictest policy for this user and profiles that are visible from this user. 2578 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2579 for (UserInfo userInfo : profiles) { 2580 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2581 final int N = policy.mAdminList.size(); 2582 for (int i=0; i<N; i++) { 2583 ActiveAdmin admin = policy.mAdminList.get(i); 2584 if (length < admin.minimumPasswordLength) { 2585 length = admin.minimumPasswordLength; 2586 } 2587 } 2588 } 2589 return length; 2590 } 2591 } 2592 2593 @Override 2594 public void setPasswordHistoryLength(ComponentName who, int length) { 2595 if (!mHasFeature) { 2596 return; 2597 } 2598 Preconditions.checkNotNull(who, "ComponentName is null"); 2599 final int userHandle = UserHandle.getCallingUserId(); 2600 synchronized (this) { 2601 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2602 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2603 if (ap.passwordHistoryLength != length) { 2604 ap.passwordHistoryLength = length; 2605 saveSettingsLocked(userHandle); 2606 } 2607 } 2608 } 2609 2610 @Override 2611 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 2612 if (!mHasFeature) { 2613 return 0; 2614 } 2615 enforceCrossUserPermission(userHandle); 2616 synchronized (this) { 2617 int length = 0; 2618 2619 if (who != null) { 2620 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2621 return admin != null ? admin.passwordHistoryLength : length; 2622 } 2623 2624 // Return strictest policy for this user and profiles that are visible from this user. 2625 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2626 for (UserInfo userInfo : profiles) { 2627 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2628 final int N = policy.mAdminList.size(); 2629 for (int i = 0; i < N; i++) { 2630 ActiveAdmin admin = policy.mAdminList.get(i); 2631 if (length < admin.passwordHistoryLength) { 2632 length = admin.passwordHistoryLength; 2633 } 2634 } 2635 } 2636 return length; 2637 } 2638 } 2639 2640 @Override 2641 public void setPasswordExpirationTimeout(ComponentName who, long timeout) { 2642 if (!mHasFeature) { 2643 return; 2644 } 2645 Preconditions.checkNotNull(who, "ComponentName is null"); 2646 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 2647 final int userHandle = UserHandle.getCallingUserId(); 2648 synchronized (this) { 2649 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2650 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2651 // Calling this API automatically bumps the expiration date 2652 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2653 ap.passwordExpirationDate = expiration; 2654 ap.passwordExpirationTimeout = timeout; 2655 if (timeout > 0L) { 2656 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2657 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2658 .format(new Date(expiration))); 2659 } 2660 saveSettingsLocked(userHandle); 2661 // in case this is the first one 2662 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2663 } 2664 } 2665 2666 /** 2667 * Return a single admin's expiration cycle time, or the min of all cycle times. 2668 * Returns 0 if not configured. 2669 */ 2670 @Override 2671 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2672 if (!mHasFeature) { 2673 return 0L; 2674 } 2675 enforceCrossUserPermission(userHandle); 2676 synchronized (this) { 2677 long timeout = 0L; 2678 2679 if (who != null) { 2680 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2681 return admin != null ? admin.passwordExpirationTimeout : timeout; 2682 } 2683 2684 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2685 for (UserInfo userInfo : profiles) { 2686 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2687 final int N = policy.mAdminList.size(); 2688 for (int i = 0; i < N; i++) { 2689 ActiveAdmin admin = policy.mAdminList.get(i); 2690 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2691 && timeout > admin.passwordExpirationTimeout)) { 2692 timeout = admin.passwordExpirationTimeout; 2693 } 2694 } 2695 } 2696 return timeout; 2697 } 2698 } 2699 2700 @Override 2701 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2702 final int userId = UserHandle.getCallingUserId(); 2703 List<String> changedProviders = null; 2704 2705 synchronized (this) { 2706 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2707 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2708 if (activeAdmin.crossProfileWidgetProviders == null) { 2709 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2710 } 2711 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2712 if (!providers.contains(packageName)) { 2713 providers.add(packageName); 2714 changedProviders = new ArrayList<>(providers); 2715 saveSettingsLocked(userId); 2716 } 2717 } 2718 2719 if (changedProviders != null) { 2720 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2721 return true; 2722 } 2723 2724 return false; 2725 } 2726 2727 @Override 2728 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2729 final int userId = UserHandle.getCallingUserId(); 2730 List<String> changedProviders = null; 2731 2732 synchronized (this) { 2733 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2734 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2735 if (activeAdmin.crossProfileWidgetProviders == null) { 2736 return false; 2737 } 2738 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2739 if (providers.remove(packageName)) { 2740 changedProviders = new ArrayList<>(providers); 2741 saveSettingsLocked(userId); 2742 } 2743 } 2744 2745 if (changedProviders != null) { 2746 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2747 return true; 2748 } 2749 2750 return false; 2751 } 2752 2753 @Override 2754 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2755 synchronized (this) { 2756 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2757 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2758 if (activeAdmin.crossProfileWidgetProviders == null 2759 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2760 return null; 2761 } 2762 if (mInjector.binderIsCallingUidMyUid()) { 2763 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2764 } else { 2765 return activeAdmin.crossProfileWidgetProviders; 2766 } 2767 } 2768 } 2769 2770 /** 2771 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2772 * Returns 0 if not configured. 2773 */ 2774 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2775 long timeout = 0L; 2776 2777 if (who != null) { 2778 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2779 return admin != null ? admin.passwordExpirationDate : timeout; 2780 } 2781 2782 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2783 for (UserInfo userInfo : profiles) { 2784 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2785 final int N = policy.mAdminList.size(); 2786 for (int i = 0; i < N; i++) { 2787 ActiveAdmin admin = policy.mAdminList.get(i); 2788 if (timeout == 0L || (admin.passwordExpirationDate != 0 2789 && timeout > admin.passwordExpirationDate)) { 2790 timeout = admin.passwordExpirationDate; 2791 } 2792 } 2793 } 2794 return timeout; 2795 } 2796 2797 @Override 2798 public long getPasswordExpiration(ComponentName who, int userHandle) { 2799 if (!mHasFeature) { 2800 return 0L; 2801 } 2802 enforceCrossUserPermission(userHandle); 2803 synchronized (this) { 2804 return getPasswordExpirationLocked(who, userHandle); 2805 } 2806 } 2807 2808 @Override 2809 public void setPasswordMinimumUpperCase(ComponentName who, int length) { 2810 if (!mHasFeature) { 2811 return; 2812 } 2813 Preconditions.checkNotNull(who, "ComponentName is null"); 2814 final int userHandle = UserHandle.getCallingUserId(); 2815 synchronized (this) { 2816 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2817 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2818 if (ap.minimumPasswordUpperCase != length) { 2819 ap.minimumPasswordUpperCase = length; 2820 saveSettingsLocked(userHandle); 2821 } 2822 } 2823 } 2824 2825 @Override 2826 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2827 if (!mHasFeature) { 2828 return 0; 2829 } 2830 enforceCrossUserPermission(userHandle); 2831 synchronized (this) { 2832 int length = 0; 2833 2834 if (who != null) { 2835 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2836 return admin != null ? admin.minimumPasswordUpperCase : length; 2837 } 2838 2839 // Return strictest policy for this user and profiles that are visible from this user. 2840 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2841 for (UserInfo userInfo : profiles) { 2842 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2843 final int N = policy.mAdminList.size(); 2844 for (int i=0; i<N; i++) { 2845 ActiveAdmin admin = policy.mAdminList.get(i); 2846 if (length < admin.minimumPasswordUpperCase) { 2847 length = admin.minimumPasswordUpperCase; 2848 } 2849 } 2850 } 2851 return length; 2852 } 2853 } 2854 2855 @Override 2856 public void setPasswordMinimumLowerCase(ComponentName who, int length) { 2857 Preconditions.checkNotNull(who, "ComponentName is null"); 2858 final int userHandle = UserHandle.getCallingUserId(); 2859 synchronized (this) { 2860 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2861 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2862 if (ap.minimumPasswordLowerCase != length) { 2863 ap.minimumPasswordLowerCase = length; 2864 saveSettingsLocked(userHandle); 2865 } 2866 } 2867 } 2868 2869 @Override 2870 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2871 if (!mHasFeature) { 2872 return 0; 2873 } 2874 enforceCrossUserPermission(userHandle); 2875 synchronized (this) { 2876 int length = 0; 2877 2878 if (who != null) { 2879 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2880 return admin != null ? admin.minimumPasswordLowerCase : length; 2881 } 2882 2883 // Return strictest policy for this user and profiles that are visible from this user. 2884 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2885 for (UserInfo userInfo : profiles) { 2886 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2887 final int N = policy.mAdminList.size(); 2888 for (int i=0; i<N; i++) { 2889 ActiveAdmin admin = policy.mAdminList.get(i); 2890 if (length < admin.minimumPasswordLowerCase) { 2891 length = admin.minimumPasswordLowerCase; 2892 } 2893 } 2894 } 2895 return length; 2896 } 2897 } 2898 2899 @Override 2900 public void setPasswordMinimumLetters(ComponentName who, int length) { 2901 if (!mHasFeature) { 2902 return; 2903 } 2904 Preconditions.checkNotNull(who, "ComponentName is null"); 2905 final int userHandle = UserHandle.getCallingUserId(); 2906 synchronized (this) { 2907 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2908 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2909 if (ap.minimumPasswordLetters != length) { 2910 ap.minimumPasswordLetters = length; 2911 saveSettingsLocked(userHandle); 2912 } 2913 } 2914 } 2915 2916 @Override 2917 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2918 if (!mHasFeature) { 2919 return 0; 2920 } 2921 enforceCrossUserPermission(userHandle); 2922 synchronized (this) { 2923 int length = 0; 2924 2925 if (who != null) { 2926 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2927 return admin != null ? admin.minimumPasswordLetters : length; 2928 } 2929 2930 // Return strictest policy for this user and profiles that are visible from this user. 2931 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2932 for (UserInfo userInfo : profiles) { 2933 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2934 final int N = policy.mAdminList.size(); 2935 for (int i=0; i<N; i++) { 2936 ActiveAdmin admin = policy.mAdminList.get(i); 2937 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2938 continue; 2939 } 2940 if (length < admin.minimumPasswordLetters) { 2941 length = admin.minimumPasswordLetters; 2942 } 2943 } 2944 } 2945 return length; 2946 } 2947 } 2948 2949 @Override 2950 public void setPasswordMinimumNumeric(ComponentName who, int length) { 2951 if (!mHasFeature) { 2952 return; 2953 } 2954 Preconditions.checkNotNull(who, "ComponentName is null"); 2955 final int userHandle = UserHandle.getCallingUserId(); 2956 synchronized (this) { 2957 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2958 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2959 if (ap.minimumPasswordNumeric != length) { 2960 ap.minimumPasswordNumeric = length; 2961 saveSettingsLocked(userHandle); 2962 } 2963 } 2964 } 2965 2966 @Override 2967 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2968 if (!mHasFeature) { 2969 return 0; 2970 } 2971 enforceCrossUserPermission(userHandle); 2972 synchronized (this) { 2973 int length = 0; 2974 2975 if (who != null) { 2976 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2977 return admin != null ? admin.minimumPasswordNumeric : length; 2978 } 2979 2980 // Return strictest policy for this user and profiles that are visible from this user. 2981 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2982 for (UserInfo userInfo : profiles) { 2983 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2984 final int N = policy.mAdminList.size(); 2985 for (int i = 0; i < N; i++) { 2986 ActiveAdmin admin = policy.mAdminList.get(i); 2987 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2988 continue; 2989 } 2990 if (length < admin.minimumPasswordNumeric) { 2991 length = admin.minimumPasswordNumeric; 2992 } 2993 } 2994 } 2995 return length; 2996 } 2997 } 2998 2999 @Override 3000 public void setPasswordMinimumSymbols(ComponentName who, int length) { 3001 if (!mHasFeature) { 3002 return; 3003 } 3004 Preconditions.checkNotNull(who, "ComponentName is null"); 3005 final int userHandle = UserHandle.getCallingUserId(); 3006 synchronized (this) { 3007 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3008 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3009 if (ap.minimumPasswordSymbols != length) { 3010 ap.minimumPasswordSymbols = length; 3011 saveSettingsLocked(userHandle); 3012 } 3013 } 3014 } 3015 3016 @Override 3017 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 3018 if (!mHasFeature) { 3019 return 0; 3020 } 3021 enforceCrossUserPermission(userHandle); 3022 synchronized (this) { 3023 int length = 0; 3024 3025 if (who != null) { 3026 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3027 return admin != null ? admin.minimumPasswordSymbols : length; 3028 } 3029 3030 // Return strictest policy for this user and profiles that are visible from this user. 3031 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3032 for (UserInfo userInfo : profiles) { 3033 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3034 final int N = policy.mAdminList.size(); 3035 for (int i=0; i<N; i++) { 3036 ActiveAdmin admin = policy.mAdminList.get(i); 3037 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3038 continue; 3039 } 3040 if (length < admin.minimumPasswordSymbols) { 3041 length = admin.minimumPasswordSymbols; 3042 } 3043 } 3044 } 3045 return length; 3046 } 3047 } 3048 3049 @Override 3050 public void setPasswordMinimumNonLetter(ComponentName who, int length) { 3051 if (!mHasFeature) { 3052 return; 3053 } 3054 Preconditions.checkNotNull(who, "ComponentName is null"); 3055 final int userHandle = UserHandle.getCallingUserId(); 3056 synchronized (this) { 3057 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3058 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3059 if (ap.minimumPasswordNonLetter != length) { 3060 ap.minimumPasswordNonLetter = length; 3061 saveSettingsLocked(userHandle); 3062 } 3063 } 3064 } 3065 3066 @Override 3067 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 3068 if (!mHasFeature) { 3069 return 0; 3070 } 3071 enforceCrossUserPermission(userHandle); 3072 synchronized (this) { 3073 int length = 0; 3074 3075 if (who != null) { 3076 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3077 return admin != null ? admin.minimumPasswordNonLetter : length; 3078 } 3079 3080 // Return strictest policy for this user and profiles that are visible from this user. 3081 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3082 for (UserInfo userInfo : profiles) { 3083 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3084 final int N = policy.mAdminList.size(); 3085 for (int i=0; i<N; i++) { 3086 ActiveAdmin admin = policy.mAdminList.get(i); 3087 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3088 continue; 3089 } 3090 if (length < admin.minimumPasswordNonLetter) { 3091 length = admin.minimumPasswordNonLetter; 3092 } 3093 } 3094 } 3095 return length; 3096 } 3097 } 3098 3099 @Override 3100 public boolean isActivePasswordSufficient(int userHandle) { 3101 if (!mHasFeature) { 3102 return true; 3103 } 3104 enforceCrossUserPermission(userHandle); 3105 3106 synchronized (this) { 3107 int id = getCredentialOwner(userHandle); 3108 DevicePolicyData policy = getUserDataUnchecked(id); 3109 3110 // This API can only be called by an active device admin, 3111 // so try to retrieve it to check that the caller is one. 3112 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 3113 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 3114 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 3115 return false; 3116 } 3117 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3118 return true; 3119 } 3120 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 3121 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 3122 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 3123 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 3124 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 3125 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 3126 } 3127 } 3128 3129 @Override 3130 public int getCurrentFailedPasswordAttempts(int userHandle) { 3131 synchronized (this) { 3132 // This API can only be called by an active device admin, 3133 // so try to retrieve it to check that the caller is one. 3134 getActiveAdminForCallerLocked(null, 3135 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3136 3137 int credentialOwnerId = getCredentialOwner(userHandle); 3138 DevicePolicyData policy = getUserDataUnchecked(credentialOwnerId); 3139 3140 return policy.mFailedPasswordAttempts; 3141 } 3142 } 3143 3144 @Override 3145 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) { 3146 if (!mHasFeature) { 3147 return; 3148 } 3149 Preconditions.checkNotNull(who, "ComponentName is null"); 3150 final int userHandle = UserHandle.getCallingUserId(); 3151 synchronized (this) { 3152 // This API can only be called by an active device admin, 3153 // so try to retrieve it to check that the caller is one. 3154 getActiveAdminForCallerLocked(who, 3155 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3156 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3157 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 3158 if (ap.maximumFailedPasswordsForWipe != num) { 3159 ap.maximumFailedPasswordsForWipe = num; 3160 saveSettingsLocked(userHandle); 3161 } 3162 } 3163 } 3164 3165 @Override 3166 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 3167 if (!mHasFeature) { 3168 return 0; 3169 } 3170 enforceCrossUserPermission(userHandle); 3171 synchronized (this) { 3172 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 3173 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3174 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3175 } 3176 } 3177 3178 @Override 3179 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle) { 3180 if (!mHasFeature) { 3181 return UserHandle.USER_NULL; 3182 } 3183 enforceCrossUserPermission(userHandle); 3184 synchronized (this) { 3185 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3186 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3187 } 3188 } 3189 3190 /** 3191 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 3192 * profiles that are visible from this user. If the policy for the primary and any other profile 3193 * are equal, it returns the admin for the primary profile. 3194 * Returns {@code null} if none of them have that policy set. 3195 */ 3196 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 3197 int count = 0; 3198 ActiveAdmin strictestAdmin = null; 3199 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3200 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3201 for (ActiveAdmin admin : policy.mAdminList) { 3202 if (admin.maximumFailedPasswordsForWipe == 3203 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3204 continue; // No max number of failed passwords policy set for this profile. 3205 } 3206 3207 // We always favor the primary profile if several profiles have the same value set. 3208 if (count == 0 || 3209 count > admin.maximumFailedPasswordsForWipe || 3210 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 3211 count = admin.maximumFailedPasswordsForWipe; 3212 strictestAdmin = admin; 3213 } 3214 } 3215 } 3216 return strictestAdmin; 3217 } 3218 3219 @Override 3220 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 3221 if (!mHasFeature) { 3222 return false; 3223 } 3224 final int callingUid = mInjector.binderGetCallingUid(); 3225 final int userHandle = mInjector.userHandleGetCallingUserId(); 3226 3227 long ident = mInjector.binderClearCallingIdentity(); 3228 try { 3229 if (getCredentialOwner(userHandle) != userHandle) { 3230 throw new SecurityException("You can not change password for this profile because" 3231 + " it shares the password with the owner profile"); 3232 } 3233 } finally { 3234 mInjector.binderRestoreCallingIdentity(ident); 3235 } 3236 3237 String password = passwordOrNull != null ? passwordOrNull : ""; 3238 3239 int quality; 3240 synchronized (this) { 3241 // If caller has PO (or DO), it can clear the password, so see if that's the case 3242 // first. 3243 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 3244 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 3245 if (admin == null) { 3246 // Otherwise, make sure the caller has any active admin with the right policy. 3247 admin = getActiveAdminForCallerLocked(null, 3248 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3249 } 3250 3251 final ComponentName adminComponent = admin.info.getComponent(); 3252 3253 // As of N, only profile owners and device owners can reset the password. 3254 if (!(isProfileOwner(adminComponent, userHandle) 3255 || isDeviceOwner(adminComponent, userHandle))) { 3256 final boolean preN = getTargetSdk(admin.info.getPackageName(), userHandle) 3257 < android.os.Build.VERSION_CODES.N; 3258 // As of N, password resetting to empty/null is not allowed anymore. 3259 // TODO Should we allow DO/PO to set an empty password? 3260 if (TextUtils.isEmpty(password)) { 3261 if (!preN) { 3262 throw new SecurityException("Cannot call with null password"); 3263 } else { 3264 Slog.e(LOG_TAG, "Cannot call with null password"); 3265 return false; 3266 } 3267 } 3268 // As of N, password cannot be changed by the admin if it is already set. 3269 if (isLockScreenSecureUnchecked(userHandle)) { 3270 if (!preN) { 3271 throw new SecurityException("Admin cannot change current password"); 3272 } else { 3273 Slog.e(LOG_TAG, "Admin cannot change current password"); 3274 return false; 3275 } 3276 } 3277 } 3278 quality = getPasswordQuality(null, userHandle); 3279 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3280 int realQuality = LockPatternUtils.computePasswordQuality(password); 3281 if (realQuality < quality 3282 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3283 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3284 + Integer.toHexString(realQuality) 3285 + " does not meet required quality 0x" 3286 + Integer.toHexString(quality)); 3287 return false; 3288 } 3289 quality = Math.max(realQuality, quality); 3290 } 3291 int length = getPasswordMinimumLength(null, userHandle); 3292 if (password.length() < length) { 3293 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3294 + " does not meet required length " + length); 3295 return false; 3296 } 3297 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3298 int letters = 0; 3299 int uppercase = 0; 3300 int lowercase = 0; 3301 int numbers = 0; 3302 int symbols = 0; 3303 int nonletter = 0; 3304 for (int i = 0; i < password.length(); i++) { 3305 char c = password.charAt(i); 3306 if (c >= 'A' && c <= 'Z') { 3307 letters++; 3308 uppercase++; 3309 } else if (c >= 'a' && c <= 'z') { 3310 letters++; 3311 lowercase++; 3312 } else if (c >= '0' && c <= '9') { 3313 numbers++; 3314 nonletter++; 3315 } else { 3316 symbols++; 3317 nonletter++; 3318 } 3319 } 3320 int neededLetters = getPasswordMinimumLetters(null, userHandle); 3321 if(letters < neededLetters) { 3322 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 3323 + " does not meet required number of letters " + neededLetters); 3324 return false; 3325 } 3326 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 3327 if (numbers < neededNumbers) { 3328 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 3329 + " does not meet required number of numerical digits " 3330 + neededNumbers); 3331 return false; 3332 } 3333 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 3334 if (lowercase < neededLowerCase) { 3335 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 3336 + " does not meet required number of lowercase letters " 3337 + neededLowerCase); 3338 return false; 3339 } 3340 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 3341 if (uppercase < neededUpperCase) { 3342 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 3343 + " does not meet required number of uppercase letters " 3344 + neededUpperCase); 3345 return false; 3346 } 3347 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 3348 if (symbols < neededSymbols) { 3349 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 3350 + " does not meet required number of special symbols " + neededSymbols); 3351 return false; 3352 } 3353 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 3354 if (nonletter < neededNonLetter) { 3355 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 3356 + " does not meet required number of non-letter characters " 3357 + neededNonLetter); 3358 return false; 3359 } 3360 } 3361 } 3362 3363 DevicePolicyData policy = getUserData(userHandle); 3364 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 3365 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 3366 return false; 3367 } 3368 3369 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 3370 boolean doNotAskCredentialsOnBoot = 3371 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 3372 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 3373 setDoNotAskCredentialsOnBoot(); 3374 } 3375 3376 // Don't do this with the lock held, because it is going to call 3377 // back in to the service. 3378 ident = mInjector.binderClearCallingIdentity(); 3379 try { 3380 LockPatternUtils utils = mInjector.newLockPatternUtils(); 3381 if (!TextUtils.isEmpty(password)) { 3382 utils.saveLockPassword(password, null, quality, userHandle); 3383 } else { 3384 utils.clearLock(userHandle); 3385 } 3386 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 3387 if (requireEntry) { 3388 utils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 3389 UserHandle.USER_ALL); 3390 } 3391 synchronized (this) { 3392 int newOwner = requireEntry ? callingUid : -1; 3393 if (policy.mPasswordOwner != newOwner) { 3394 policy.mPasswordOwner = newOwner; 3395 saveSettingsLocked(userHandle); 3396 } 3397 } 3398 } finally { 3399 mInjector.binderRestoreCallingIdentity(ident); 3400 } 3401 3402 return true; 3403 } 3404 3405 private boolean isLockScreenSecureUnchecked(int userId) { 3406 long ident = mInjector.binderClearCallingIdentity(); 3407 try { 3408 return mInjector.newLockPatternUtils().isSecure(userId); 3409 } finally { 3410 mInjector.binderRestoreCallingIdentity(ident); 3411 } 3412 } 3413 3414 private void setDoNotAskCredentialsOnBoot() { 3415 synchronized (this) { 3416 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3417 if (!policyData.doNotAskCredentialsOnBoot) { 3418 policyData.doNotAskCredentialsOnBoot = true; 3419 saveSettingsLocked(UserHandle.USER_SYSTEM); 3420 } 3421 } 3422 } 3423 3424 @Override 3425 public boolean getDoNotAskCredentialsOnBoot() { 3426 mContext.enforceCallingOrSelfPermission( 3427 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 3428 synchronized (this) { 3429 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3430 return policyData.doNotAskCredentialsOnBoot; 3431 } 3432 } 3433 3434 @Override 3435 public void setMaximumTimeToLock(ComponentName who, long timeMs) { 3436 if (!mHasFeature) { 3437 return; 3438 } 3439 Preconditions.checkNotNull(who, "ComponentName is null"); 3440 final int userHandle = UserHandle.getCallingUserId(); 3441 synchronized (this) { 3442 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3443 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3444 if (ap.maximumTimeToUnlock != timeMs) { 3445 ap.maximumTimeToUnlock = timeMs; 3446 saveSettingsLocked(userHandle); 3447 updateMaximumTimeToLockLocked(getUserData(userHandle)); 3448 } 3449 } 3450 } 3451 3452 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 3453 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 3454 if (policy.mLastMaximumTimeToLock == timeMs) { 3455 return; 3456 } 3457 3458 long ident = mInjector.binderClearCallingIdentity(); 3459 try { 3460 if (timeMs <= 0) { 3461 timeMs = Integer.MAX_VALUE; 3462 } else { 3463 // Make sure KEEP_SCREEN_ON is disabled, since that 3464 // would allow bypassing of the maximum time to lock. 3465 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 3466 } 3467 3468 policy.mLastMaximumTimeToLock = timeMs; 3469 // TODO It can overflow. Cap it. 3470 mInjector.getPowerManagerInternal() 3471 .setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 3472 } finally { 3473 mInjector.binderRestoreCallingIdentity(ident); 3474 } 3475 } 3476 3477 @Override 3478 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 3479 if (!mHasFeature) { 3480 return 0; 3481 } 3482 enforceCrossUserPermission(userHandle); 3483 synchronized (this) { 3484 long time = 0; 3485 3486 if (who != null) { 3487 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3488 return admin != null ? admin.maximumTimeToUnlock : time; 3489 } 3490 3491 // Return strictest policy for this user and profiles that are visible from this user. 3492 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3493 for (UserInfo userInfo : profiles) { 3494 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3495 final int N = policy.mAdminList.size(); 3496 for (int i=0; i<N; i++) { 3497 ActiveAdmin admin = policy.mAdminList.get(i); 3498 if (time == 0) { 3499 time = admin.maximumTimeToUnlock; 3500 } else if (admin.maximumTimeToUnlock != 0 3501 && time > admin.maximumTimeToUnlock) { 3502 time = admin.maximumTimeToUnlock; 3503 } 3504 } 3505 } 3506 return time; 3507 } 3508 } 3509 3510 @Override 3511 public void lockNow() { 3512 if (!mHasFeature) { 3513 return; 3514 } 3515 synchronized (this) { 3516 // This API can only be called by an active device admin, 3517 // so try to retrieve it to check that the caller is one. 3518 getActiveAdminForCallerLocked(null, 3519 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 3520 lockNowUnchecked(); 3521 } 3522 } 3523 3524 private void lockNowUnchecked() { 3525 long ident = mInjector.binderClearCallingIdentity(); 3526 try { 3527 // Power off the display 3528 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 3529 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 3530 // Ensure the device is locked 3531 new LockPatternUtils(mContext).requireStrongAuth( 3532 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, UserHandle.USER_ALL); 3533 mInjector.getIWindowManager().lockNow(null); 3534 } catch (RemoteException e) { 3535 } finally { 3536 mInjector.binderRestoreCallingIdentity(ident); 3537 } 3538 } 3539 3540 @Override 3541 public void enforceCanManageCaCerts(ComponentName who) { 3542 if (who == null) { 3543 if (!isCallerDelegatedCertInstaller()) { 3544 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 3545 } 3546 } else { 3547 synchronized (this) { 3548 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3549 } 3550 } 3551 } 3552 3553 private void enforceCanManageInstalledKeys(ComponentName who) { 3554 if (who == null) { 3555 if (!isCallerDelegatedCertInstaller()) { 3556 throw new SecurityException("who == null, but caller is not cert installer"); 3557 } 3558 } else { 3559 synchronized (this) { 3560 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3561 } 3562 } 3563 } 3564 3565 private boolean isCallerDelegatedCertInstaller() { 3566 final int callingUid = mInjector.binderGetCallingUid(); 3567 final int userHandle = UserHandle.getUserId(callingUid); 3568 synchronized (this) { 3569 final DevicePolicyData policy = getUserData(userHandle); 3570 if (policy.mDelegatedCertInstallerPackage == null) { 3571 return false; 3572 } 3573 3574 try { 3575 int uid = mContext.getPackageManager().getPackageUid( 3576 policy.mDelegatedCertInstallerPackage, userHandle); 3577 return uid == callingUid; 3578 } catch (NameNotFoundException e) { 3579 return false; 3580 } 3581 } 3582 } 3583 3584 @Override 3585 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 3586 enforceCanManageCaCerts(admin); 3587 3588 byte[] pemCert; 3589 try { 3590 X509Certificate cert = parseCert(certBuffer); 3591 pemCert = Credentials.convertToPem(cert); 3592 } catch (CertificateException ce) { 3593 Log.e(LOG_TAG, "Problem converting cert", ce); 3594 return false; 3595 } catch (IOException ioe) { 3596 Log.e(LOG_TAG, "Problem reading cert", ioe); 3597 return false; 3598 } 3599 3600 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3601 final long id = mInjector.binderClearCallingIdentity(); 3602 try { 3603 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3604 try { 3605 keyChainConnection.getService().installCaCertificate(pemCert); 3606 return true; 3607 } catch (RemoteException e) { 3608 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 3609 } finally { 3610 keyChainConnection.close(); 3611 } 3612 } catch (InterruptedException e1) { 3613 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 3614 Thread.currentThread().interrupt(); 3615 } finally { 3616 mInjector.binderRestoreCallingIdentity(id); 3617 } 3618 return false; 3619 } 3620 3621 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 3622 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 3623 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 3624 certBuffer)); 3625 } 3626 3627 @Override 3628 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 3629 enforceCanManageCaCerts(admin); 3630 3631 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3632 final long id = mInjector.binderClearCallingIdentity(); 3633 try { 3634 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3635 try { 3636 for (int i = 0 ; i < aliases.length; i++) { 3637 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 3638 } 3639 } catch (RemoteException e) { 3640 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 3641 } finally { 3642 keyChainConnection.close(); 3643 } 3644 } catch (InterruptedException ie) { 3645 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 3646 Thread.currentThread().interrupt(); 3647 } finally { 3648 mInjector.binderRestoreCallingIdentity(id); 3649 } 3650 } 3651 3652 @Override 3653 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 3654 enforceCanManageInstalledKeys(who); 3655 3656 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3657 final long id = mInjector.binderClearCallingIdentity(); 3658 try { 3659 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3660 try { 3661 IKeyChainService keyChain = keyChainConnection.getService(); 3662 return keyChain.installKeyPair(privKey, cert, alias); 3663 } catch (RemoteException e) { 3664 Log.e(LOG_TAG, "Installing certificate", e); 3665 } finally { 3666 keyChainConnection.close(); 3667 } 3668 } catch (InterruptedException e) { 3669 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 3670 Thread.currentThread().interrupt(); 3671 } finally { 3672 mInjector.binderRestoreCallingIdentity(id); 3673 } 3674 return false; 3675 } 3676 3677 @Override 3678 public boolean removeKeyPair(ComponentName who, String alias) { 3679 enforceCanManageInstalledKeys(who); 3680 3681 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3682 final long id = Binder.clearCallingIdentity(); 3683 try { 3684 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3685 try { 3686 IKeyChainService keyChain = keyChainConnection.getService(); 3687 return keyChain.removeKeyPair(alias); 3688 } catch (RemoteException e) { 3689 Log.e(LOG_TAG, "Removing keypair", e); 3690 } finally { 3691 keyChainConnection.close(); 3692 } 3693 } catch (InterruptedException e) { 3694 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 3695 Thread.currentThread().interrupt(); 3696 } finally { 3697 Binder.restoreCallingIdentity(id); 3698 } 3699 return false; 3700 } 3701 3702 @Override 3703 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 3704 final IBinder response) { 3705 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 3706 if (!UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID)) { 3707 return; 3708 } 3709 3710 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 3711 // If there is a profile owner, redirect to that; otherwise query the device owner. 3712 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 3713 if (aliasChooser == null && caller.isSystem()) { 3714 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 3715 if (deviceOwnerAdmin != null) { 3716 aliasChooser = deviceOwnerAdmin.info.getComponent(); 3717 } 3718 } 3719 if (aliasChooser == null) { 3720 sendPrivateKeyAliasResponse(null, response); 3721 return; 3722 } 3723 3724 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 3725 intent.setComponent(aliasChooser); 3726 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 3727 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 3728 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 3729 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 3730 3731 final long id = mInjector.binderClearCallingIdentity(); 3732 try { 3733 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 3734 @Override 3735 public void onReceive(Context context, Intent intent) { 3736 final String chosenAlias = getResultData(); 3737 sendPrivateKeyAliasResponse(chosenAlias, response); 3738 } 3739 }, null, Activity.RESULT_OK, null, null); 3740 } finally { 3741 mInjector.binderRestoreCallingIdentity(id); 3742 } 3743 } 3744 3745 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 3746 final IKeyChainAliasCallback keyChainAliasResponse = 3747 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 3748 new AsyncTask<Void, Void, Void>() { 3749 @Override 3750 protected Void doInBackground(Void... unused) { 3751 try { 3752 keyChainAliasResponse.alias(alias); 3753 } catch (Exception e) { 3754 // Catch everything (not just RemoteException): caller could throw a 3755 // RuntimeException back across processes. 3756 Log.e(LOG_TAG, "error while responding to callback", e); 3757 } 3758 return null; 3759 } 3760 }.execute(); 3761 } 3762 3763 @Override 3764 public void setCertInstallerPackage(ComponentName who, String installerPackage) 3765 throws SecurityException { 3766 int userHandle = UserHandle.getCallingUserId(); 3767 synchronized (this) { 3768 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3769 DevicePolicyData policy = getUserData(userHandle); 3770 policy.mDelegatedCertInstallerPackage = installerPackage; 3771 saveSettingsLocked(userHandle); 3772 } 3773 } 3774 3775 @Override 3776 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 3777 int userHandle = UserHandle.getCallingUserId(); 3778 synchronized (this) { 3779 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3780 DevicePolicyData policy = getUserData(userHandle); 3781 return policy.mDelegatedCertInstallerPackage; 3782 } 3783 } 3784 3785 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 3786 if (wipeExtRequested) { 3787 StorageManager sm = (StorageManager) mContext.getSystemService( 3788 Context.STORAGE_SERVICE); 3789 sm.wipeAdoptableDisks(); 3790 } 3791 try { 3792 RecoverySystem.rebootWipeUserData(mContext, reason); 3793 } catch (IOException | SecurityException e) { 3794 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 3795 } 3796 } 3797 3798 @Override 3799 public void wipeData(int flags) { 3800 if (!mHasFeature) { 3801 return; 3802 } 3803 final int userHandle = mInjector.userHandleGetCallingUserId(); 3804 enforceCrossUserPermission(userHandle); 3805 synchronized (this) { 3806 // This API can only be called by an active device admin, 3807 // so try to retrieve it to check that the caller is one. 3808 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 3809 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3810 3811 final String source = admin.info.getComponent().flattenToShortString(); 3812 3813 long ident = mInjector.binderClearCallingIdentity(); 3814 try { 3815 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 3816 if (!isDeviceOwner(admin.info.getComponent(), userHandle)) { 3817 throw new SecurityException( 3818 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 3819 } 3820 PersistentDataBlockManager manager = (PersistentDataBlockManager) 3821 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 3822 if (manager != null) { 3823 manager.wipe(); 3824 } 3825 } 3826 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 3827 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 3828 "DevicePolicyManager.wipeData() from " + source); 3829 } finally { 3830 mInjector.binderRestoreCallingIdentity(ident); 3831 } 3832 } 3833 } 3834 3835 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 3836 if (userHandle == UserHandle.USER_SYSTEM) { 3837 wipeDataLocked(wipeExtRequested, reason); 3838 } else { 3839 mHandler.post(new Runnable() { 3840 @Override 3841 public void run() { 3842 try { 3843 IActivityManager am = mInjector.getIActivityManager(); 3844 if (am.getCurrentUser().id == userHandle) { 3845 am.switchUser(UserHandle.USER_SYSTEM); 3846 } 3847 3848 boolean isManagedProfile = isManagedProfile(userHandle); 3849 if (!mUserManager.removeUser(userHandle)) { 3850 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 3851 } else if (isManagedProfile) { 3852 sendWipeProfileNotification(); 3853 } 3854 } catch (RemoteException re) { 3855 // Shouldn't happen 3856 } 3857 } 3858 }); 3859 } 3860 } 3861 3862 private void sendWipeProfileNotification() { 3863 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 3864 Notification notification = new Notification.Builder(mContext) 3865 .setSmallIcon(android.R.drawable.stat_sys_warning) 3866 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 3867 .setContentText(contentText) 3868 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 3869 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 3870 .build(); 3871 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 3872 } 3873 3874 private void clearWipeProfileNotification() { 3875 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 3876 } 3877 3878 @Override 3879 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 3880 if (!mHasFeature) { 3881 return; 3882 } 3883 enforceCrossUserPermission(userHandle); 3884 mContext.enforceCallingOrSelfPermission( 3885 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3886 3887 synchronized (this) { 3888 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 3889 if (admin == null) { 3890 result.sendResult(null); 3891 return; 3892 } 3893 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3894 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3895 intent.setComponent(admin.info.getComponent()); 3896 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3897 null, new BroadcastReceiver() { 3898 @Override 3899 public void onReceive(Context context, Intent intent) { 3900 result.sendResult(getResultExtras(false)); 3901 } 3902 }, null, Activity.RESULT_OK, null, null); 3903 } 3904 } 3905 3906 @Override 3907 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3908 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3909 if (!mHasFeature) { 3910 return; 3911 } 3912 enforceCrossUserPermission(userHandle); 3913 // Managed Profile password can only be changed when per user encryption is present. 3914 if (!LockPatternUtils.isSeparateWorkChallengeEnabled()) { 3915 enforceNotManagedProfile(userHandle, "set the active password"); 3916 } 3917 3918 mContext.enforceCallingOrSelfPermission( 3919 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3920 validateQualityConstant(quality); 3921 3922 DevicePolicyData policy = getUserData(userHandle); 3923 3924 long ident = mInjector.binderClearCallingIdentity(); 3925 try { 3926 synchronized (this) { 3927 policy.mActivePasswordQuality = quality; 3928 policy.mActivePasswordLength = length; 3929 policy.mActivePasswordLetters = letters; 3930 policy.mActivePasswordLowerCase = lowercase; 3931 policy.mActivePasswordUpperCase = uppercase; 3932 policy.mActivePasswordNumeric = numbers; 3933 policy.mActivePasswordSymbols = symbols; 3934 policy.mActivePasswordNonLetter = nonletter; 3935 policy.mFailedPasswordAttempts = 0; 3936 saveSettingsLocked(userHandle); 3937 updatePasswordExpirationsLocked(userHandle); 3938 setExpirationAlarmCheckLocked(mContext, policy); 3939 3940 // Send a broadcast to each profile using this password as its primary unlock. 3941 if (LockPatternUtils.isSeparateWorkChallengeEnabled()) { 3942 sendAdminCommandLocked( 3943 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3944 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3945 } else { 3946 sendAdminCommandToSelfAndProfilesLocked( 3947 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3948 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3949 } 3950 } 3951 } finally { 3952 mInjector.binderRestoreCallingIdentity(ident); 3953 } 3954 } 3955 3956 /** 3957 * Called any time the device password is updated. Resets all password expiration clocks. 3958 */ 3959 private void updatePasswordExpirationsLocked(int userHandle) { 3960 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3961 for (UserInfo userInfo : profiles) { 3962 int profileId = userInfo.id; 3963 DevicePolicyData policy = getUserDataUnchecked(profileId); 3964 final int N = policy.mAdminList.size(); 3965 if (N > 0) { 3966 for (int i=0; i<N; i++) { 3967 ActiveAdmin admin = policy.mAdminList.get(i); 3968 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3969 long timeout = admin.passwordExpirationTimeout; 3970 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3971 admin.passwordExpirationDate = expiration; 3972 } 3973 } 3974 } 3975 saveSettingsLocked(profileId); 3976 } 3977 } 3978 3979 @Override 3980 public void reportFailedPasswordAttempt(int userHandle) { 3981 enforceCrossUserPermission(userHandle); 3982 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3983 mContext.enforceCallingOrSelfPermission( 3984 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3985 3986 long ident = mInjector.binderClearCallingIdentity(); 3987 try { 3988 boolean wipeData = false; 3989 int identifier = 0; 3990 synchronized (this) { 3991 DevicePolicyData policy = getUserData(userHandle); 3992 policy.mFailedPasswordAttempts++; 3993 saveSettingsLocked(userHandle); 3994 if (mHasFeature) { 3995 ActiveAdmin strictestAdmin = 3996 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3997 int max = strictestAdmin != null 3998 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3999 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 4000 // Wipe the user/profile associated with the policy that was violated. This 4001 // is not necessarily calling user: if the policy that fired was from a 4002 // managed profile rather than the main user profile, we wipe former only. 4003 wipeData = true; 4004 identifier = strictestAdmin.getUserHandle().getIdentifier(); 4005 } 4006 sendAdminCommandToSelfAndProfilesLocked( 4007 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 4008 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4009 } 4010 } 4011 if (wipeData) { 4012 // Call without holding lock. 4013 wipeDeviceOrUserLocked(false, identifier, 4014 "reportFailedPasswordAttempt()"); 4015 } 4016 } finally { 4017 mInjector.binderRestoreCallingIdentity(ident); 4018 } 4019 } 4020 4021 @Override 4022 public void reportSuccessfulPasswordAttempt(int userHandle) { 4023 enforceCrossUserPermission(userHandle); 4024 mContext.enforceCallingOrSelfPermission( 4025 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4026 4027 synchronized (this) { 4028 DevicePolicyData policy = getUserData(userHandle); 4029 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 4030 long ident = mInjector.binderClearCallingIdentity(); 4031 try { 4032 policy.mFailedPasswordAttempts = 0; 4033 policy.mPasswordOwner = -1; 4034 saveSettingsLocked(userHandle); 4035 if (mHasFeature) { 4036 sendAdminCommandToSelfAndProfilesLocked( 4037 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 4038 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4039 } 4040 } finally { 4041 mInjector.binderRestoreCallingIdentity(ident); 4042 } 4043 } 4044 } 4045 } 4046 4047 @Override 4048 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 4049 String exclusionList) { 4050 if (!mHasFeature) { 4051 return null; 4052 } 4053 synchronized(this) { 4054 Preconditions.checkNotNull(who, "ComponentName is null"); 4055 4056 // Only check if system user has set global proxy. We don't allow other users to set it. 4057 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4058 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4059 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 4060 4061 // Scan through active admins and find if anyone has already 4062 // set the global proxy. 4063 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 4064 for (ComponentName component : compSet) { 4065 ActiveAdmin ap = policy.mAdminMap.get(component); 4066 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 4067 // Another admin already sets the global proxy 4068 // Return it to the caller. 4069 return component; 4070 } 4071 } 4072 4073 // If the user is not system, don't set the global proxy. Fail silently. 4074 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 4075 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 4076 + UserHandle.getCallingUserId() + " is not permitted."); 4077 return null; 4078 } 4079 if (proxySpec == null) { 4080 admin.specifiesGlobalProxy = false; 4081 admin.globalProxySpec = null; 4082 admin.globalProxyExclusionList = null; 4083 } else { 4084 4085 admin.specifiesGlobalProxy = true; 4086 admin.globalProxySpec = proxySpec; 4087 admin.globalProxyExclusionList = exclusionList; 4088 } 4089 4090 // Reset the global proxy accordingly 4091 // Do this using system permissions, as apps cannot write to secure settings 4092 long origId = mInjector.binderClearCallingIdentity(); 4093 try { 4094 resetGlobalProxyLocked(policy); 4095 } finally { 4096 mInjector.binderRestoreCallingIdentity(origId); 4097 } 4098 return null; 4099 } 4100 } 4101 4102 @Override 4103 public ComponentName getGlobalProxyAdmin(int userHandle) { 4104 if (!mHasFeature) { 4105 return null; 4106 } 4107 enforceCrossUserPermission(userHandle); 4108 synchronized(this) { 4109 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4110 // Scan through active admins and find if anyone has already 4111 // set the global proxy. 4112 final int N = policy.mAdminList.size(); 4113 for (int i = 0; i < N; i++) { 4114 ActiveAdmin ap = policy.mAdminList.get(i); 4115 if (ap.specifiesGlobalProxy) { 4116 // Device admin sets the global proxy 4117 // Return it to the caller. 4118 return ap.info.getComponent(); 4119 } 4120 } 4121 } 4122 // No device admin sets the global proxy. 4123 return null; 4124 } 4125 4126 @Override 4127 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 4128 synchronized (this) { 4129 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4130 } 4131 long token = mInjector.binderClearCallingIdentity(); 4132 try { 4133 ConnectivityManager connectivityManager = (ConnectivityManager) 4134 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4135 connectivityManager.setGlobalProxy(proxyInfo); 4136 } finally { 4137 mInjector.binderRestoreCallingIdentity(token); 4138 } 4139 } 4140 4141 private void resetGlobalProxyLocked(DevicePolicyData policy) { 4142 final int N = policy.mAdminList.size(); 4143 for (int i = 0; i < N; i++) { 4144 ActiveAdmin ap = policy.mAdminList.get(i); 4145 if (ap.specifiesGlobalProxy) { 4146 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 4147 return; 4148 } 4149 } 4150 // No device admins defining global proxies - reset global proxy settings to none 4151 saveGlobalProxyLocked(null, null); 4152 } 4153 4154 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 4155 if (exclusionList == null) { 4156 exclusionList = ""; 4157 } 4158 if (proxySpec == null) { 4159 proxySpec = ""; 4160 } 4161 // Remove white spaces 4162 proxySpec = proxySpec.trim(); 4163 String data[] = proxySpec.split(":"); 4164 int proxyPort = 8080; 4165 if (data.length > 1) { 4166 try { 4167 proxyPort = Integer.parseInt(data[1]); 4168 } catch (NumberFormatException e) {} 4169 } 4170 exclusionList = exclusionList.trim(); 4171 4172 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 4173 if (!proxyProperties.isValid()) { 4174 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 4175 return; 4176 } 4177 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 4178 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 4179 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 4180 exclusionList); 4181 } 4182 4183 /** 4184 * Set the storage encryption request for a single admin. Returns the new total request 4185 * status (for all admins). 4186 */ 4187 @Override 4188 public int setStorageEncryption(ComponentName who, boolean encrypt) { 4189 if (!mHasFeature) { 4190 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4191 } 4192 Preconditions.checkNotNull(who, "ComponentName is null"); 4193 final int userHandle = UserHandle.getCallingUserId(); 4194 synchronized (this) { 4195 // Check for permissions 4196 // Only system user can set storage encryption 4197 if (userHandle != UserHandle.USER_SYSTEM) { 4198 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 4199 + UserHandle.getCallingUserId() + " is not permitted."); 4200 return 0; 4201 } 4202 4203 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4204 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 4205 4206 // Quick exit: If the filesystem does not support encryption, we can exit early. 4207 if (!isEncryptionSupported()) { 4208 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4209 } 4210 4211 // (1) Record the value for the admin so it's sticky 4212 if (ap.encryptionRequested != encrypt) { 4213 ap.encryptionRequested = encrypt; 4214 saveSettingsLocked(userHandle); 4215 } 4216 4217 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4218 // (2) Compute "max" for all admins 4219 boolean newRequested = false; 4220 final int N = policy.mAdminList.size(); 4221 for (int i = 0; i < N; i++) { 4222 newRequested |= policy.mAdminList.get(i).encryptionRequested; 4223 } 4224 4225 // Notify OS of new request 4226 setEncryptionRequested(newRequested); 4227 4228 // Return the new global request status 4229 return newRequested 4230 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4231 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4232 } 4233 } 4234 4235 /** 4236 * Get the current storage encryption request status for a given admin, or aggregate of all 4237 * active admins. 4238 */ 4239 @Override 4240 public boolean getStorageEncryption(ComponentName who, int userHandle) { 4241 if (!mHasFeature) { 4242 return false; 4243 } 4244 enforceCrossUserPermission(userHandle); 4245 synchronized (this) { 4246 // Check for permissions if a particular caller is specified 4247 if (who != null) { 4248 // When checking for a single caller, status is based on caller's request 4249 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 4250 return ap != null ? ap.encryptionRequested : false; 4251 } 4252 4253 // If no particular caller is specified, return the aggregate set of requests. 4254 // This is short circuited by returning true on the first hit. 4255 DevicePolicyData policy = getUserData(userHandle); 4256 final int N = policy.mAdminList.size(); 4257 for (int i = 0; i < N; i++) { 4258 if (policy.mAdminList.get(i).encryptionRequested) { 4259 return true; 4260 } 4261 } 4262 return false; 4263 } 4264 } 4265 4266 /** 4267 * Get the current encryption status of the device. 4268 */ 4269 @Override 4270 public int getStorageEncryptionStatus(int userHandle) { 4271 if (!mHasFeature) { 4272 // Ok to return current status. 4273 } 4274 enforceCrossUserPermission(userHandle); 4275 return getEncryptionStatus(); 4276 } 4277 4278 /** 4279 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 4280 */ 4281 private boolean isEncryptionSupported() { 4282 // Note, this can be implemented as 4283 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4284 // But is provided as a separate internal method if there's a faster way to do a 4285 // simple check for supported-or-not. 4286 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4287 } 4288 4289 /** 4290 * Hook to low-levels: Reporting the current status of encryption. 4291 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 4292 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 4293 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, or 4294 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 4295 */ 4296 private int getEncryptionStatus() { 4297 String status = mInjector.systemPropertiesGet("ro.crypto.state", "unsupported"); 4298 if ("encrypted".equalsIgnoreCase(status)) { 4299 final long token = mInjector.binderClearCallingIdentity(); 4300 try { 4301 return LockPatternUtils.isDeviceEncrypted() 4302 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4303 : DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 4304 } finally { 4305 mInjector.binderRestoreCallingIdentity(token); 4306 } 4307 } else if ("unencrypted".equalsIgnoreCase(status)) { 4308 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4309 } else { 4310 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4311 } 4312 } 4313 4314 /** 4315 * Hook to low-levels: If needed, record the new admin setting for encryption. 4316 */ 4317 private void setEncryptionRequested(boolean encrypt) { 4318 } 4319 4320 4321 /** 4322 * Set whether the screen capture is disabled for the user managed by the specified admin. 4323 */ 4324 @Override 4325 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 4326 if (!mHasFeature) { 4327 return; 4328 } 4329 Preconditions.checkNotNull(who, "ComponentName is null"); 4330 final int userHandle = UserHandle.getCallingUserId(); 4331 synchronized (this) { 4332 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4333 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4334 if (ap.disableScreenCapture != disabled) { 4335 ap.disableScreenCapture = disabled; 4336 saveSettingsLocked(userHandle); 4337 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 4338 } 4339 } 4340 } 4341 4342 /** 4343 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 4344 * active admin (if given admin is null). 4345 */ 4346 @Override 4347 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 4348 if (!mHasFeature) { 4349 return false; 4350 } 4351 synchronized (this) { 4352 if (who != null) { 4353 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4354 return (admin != null) ? admin.disableScreenCapture : false; 4355 } 4356 4357 DevicePolicyData policy = getUserData(userHandle); 4358 final int N = policy.mAdminList.size(); 4359 for (int i = 0; i < N; i++) { 4360 ActiveAdmin admin = policy.mAdminList.get(i); 4361 if (admin.disableScreenCapture) { 4362 return true; 4363 } 4364 } 4365 return false; 4366 } 4367 } 4368 4369 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 4370 final boolean disabled) { 4371 mHandler.post(new Runnable() { 4372 @Override 4373 public void run() { 4374 try { 4375 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 4376 } catch (RemoteException e) { 4377 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 4378 } 4379 } 4380 }); 4381 } 4382 4383 /** 4384 * Set whether auto time is required by the specified admin (must be device owner). 4385 */ 4386 @Override 4387 public void setAutoTimeRequired(ComponentName who, boolean required) { 4388 if (!mHasFeature) { 4389 return; 4390 } 4391 Preconditions.checkNotNull(who, "ComponentName is null"); 4392 final int userHandle = UserHandle.getCallingUserId(); 4393 synchronized (this) { 4394 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4395 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4396 if (admin.requireAutoTime != required) { 4397 admin.requireAutoTime = required; 4398 saveSettingsLocked(userHandle); 4399 } 4400 } 4401 4402 // Turn AUTO_TIME on in settings if it is required 4403 if (required) { 4404 long ident = mInjector.binderClearCallingIdentity(); 4405 try { 4406 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 4407 } finally { 4408 mInjector.binderRestoreCallingIdentity(ident); 4409 } 4410 } 4411 } 4412 4413 /** 4414 * Returns whether or not auto time is required by the device owner. 4415 */ 4416 @Override 4417 public boolean getAutoTimeRequired() { 4418 if (!mHasFeature) { 4419 return false; 4420 } 4421 synchronized (this) { 4422 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4423 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 4424 } 4425 } 4426 4427 /** 4428 * Disables all device cameras according to the specified admin. 4429 */ 4430 @Override 4431 public void setCameraDisabled(ComponentName who, boolean disabled) { 4432 if (!mHasFeature) { 4433 return; 4434 } 4435 Preconditions.checkNotNull(who, "ComponentName is null"); 4436 final int userHandle = mInjector.userHandleGetCallingUserId(); 4437 synchronized (this) { 4438 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4439 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 4440 if (ap.disableCamera != disabled) { 4441 ap.disableCamera = disabled; 4442 saveSettingsLocked(userHandle); 4443 } 4444 } 4445 // Tell the user manager that the restrictions have changed. 4446 pushUserRestrictions(userHandle); 4447 } 4448 4449 /** 4450 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 4451 * active admins. 4452 */ 4453 @Override 4454 public boolean getCameraDisabled(ComponentName who, int userHandle) { 4455 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 4456 } 4457 4458 private boolean getCameraDisabled(ComponentName who, int userHandle, 4459 boolean mergeDeviceOwnerRestriction) { 4460 if (!mHasFeature) { 4461 return false; 4462 } 4463 synchronized (this) { 4464 if (who != null) { 4465 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4466 return (admin != null) ? admin.disableCamera : false; 4467 } 4468 // First, see if DO has set it. If so, it's device-wide. 4469 if (mergeDeviceOwnerRestriction) { 4470 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4471 if (deviceOwner != null && deviceOwner.disableCamera) { 4472 return true; 4473 } 4474 } 4475 4476 // Then check each device admin on the user. 4477 DevicePolicyData policy = getUserData(userHandle); 4478 // Determine whether or not the device camera is disabled for any active admins. 4479 final int N = policy.mAdminList.size(); 4480 for (int i = 0; i < N; i++) { 4481 ActiveAdmin admin = policy.mAdminList.get(i); 4482 if (admin.disableCamera) { 4483 return true; 4484 } 4485 } 4486 return false; 4487 } 4488 } 4489 4490 /** 4491 * Selectively disable keyguard features. 4492 */ 4493 @Override 4494 public void setKeyguardDisabledFeatures(ComponentName who, int which) { 4495 if (!mHasFeature) { 4496 return; 4497 } 4498 Preconditions.checkNotNull(who, "ComponentName is null"); 4499 final int userHandle = UserHandle.getCallingUserId(); 4500 if (isManagedProfile(userHandle)) { 4501 which = which & PROFILE_KEYGUARD_FEATURES; 4502 } 4503 synchronized (this) { 4504 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4505 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4506 if (ap.disabledKeyguardFeatures != which) { 4507 ap.disabledKeyguardFeatures = which; 4508 saveSettingsLocked(userHandle); 4509 } 4510 } 4511 } 4512 4513 /** 4514 * Gets the disabled state for features in keyguard for the given admin, 4515 * or the aggregate of all active admins if who is null. 4516 */ 4517 @Override 4518 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 4519 if (!mHasFeature) { 4520 return 0; 4521 } 4522 enforceCrossUserPermission(userHandle); 4523 long ident = mInjector.binderClearCallingIdentity(); 4524 try { 4525 synchronized (this) { 4526 if (who != null) { 4527 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4528 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 4529 } 4530 4531 UserInfo user = mUserManager.getUserInfo(userHandle); 4532 final List<UserInfo> profiles; 4533 if (user.isManagedProfile() || LockPatternUtils.isSeparateWorkChallengeEnabled()) { 4534 // If we are being asked about a managed profile or the main user profile has a 4535 // separate lock from the work profile, just return keyguard features disabled 4536 // by admins in the profile. 4537 profiles = Collections.singletonList(user); 4538 } else { 4539 // Otherwise return those set by admins in the user 4540 // and its profiles. 4541 profiles = mUserManager.getProfiles(userHandle); 4542 } 4543 4544 // Determine which keyguard features are disabled by any active admin. 4545 int which = 0; 4546 for (UserInfo userInfo : profiles) { 4547 DevicePolicyData policy = getUserData(userInfo.id); 4548 final int N = policy.mAdminList.size(); 4549 for (int i = 0; i < N; i++) { 4550 ActiveAdmin admin = policy.mAdminList.get(i); 4551 if (userInfo.id == userHandle || !userInfo.isManagedProfile()) { 4552 // If we are being asked explictly about this user 4553 // return all disabled features even if its a managed profile. 4554 which |= admin.disabledKeyguardFeatures; 4555 } else { 4556 // Otherwise a managed profile is only allowed to disable 4557 // some features on the parent user. 4558 which |= (admin.disabledKeyguardFeatures 4559 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 4560 } 4561 } 4562 } 4563 return which; 4564 } 4565 } finally { 4566 mInjector.binderRestoreCallingIdentity(ident); 4567 } 4568 } 4569 4570 @Override 4571 public void setKeepUninstalledPackages(ComponentName who, List<String> packageList) { 4572 if (!mHasFeature) { 4573 return; 4574 } 4575 Preconditions.checkNotNull(who, "ComponentName is null"); 4576 Preconditions.checkNotNull(packageList, "packageList is null"); 4577 final int userHandle = UserHandle.getCallingUserId(); 4578 synchronized (this) { 4579 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4580 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4581 admin.keepUninstalledPackages = packageList; 4582 saveSettingsLocked(userHandle); 4583 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 4584 } 4585 } 4586 4587 @Override 4588 public List<String> getKeepUninstalledPackages(ComponentName who) { 4589 Preconditions.checkNotNull(who, "ComponentName is null"); 4590 if (!mHasFeature) { 4591 return null; 4592 } 4593 // TODO In split system user mode, allow apps on user 0 to query the list 4594 synchronized (this) { 4595 // Check if this is the device owner who is calling 4596 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4597 return getKeepUninstalledPackagesLocked(); 4598 } 4599 } 4600 4601 private List<String> getKeepUninstalledPackagesLocked() { 4602 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4603 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 4604 } 4605 4606 @Override 4607 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 4608 if (!mHasFeature) { 4609 return false; 4610 } 4611 if (admin == null 4612 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 4613 throw new IllegalArgumentException("Invalid component " + admin 4614 + " for device owner"); 4615 } 4616 synchronized (this) { 4617 enforceCanSetDeviceOwnerLocked(userId); 4618 4619 // Shutting down backup manager service permanently. 4620 long ident = mInjector.binderClearCallingIdentity(); 4621 try { 4622 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, false); 4623 } catch (RemoteException e) { 4624 throw new IllegalStateException("Failed deactivating backup service.", e); 4625 } finally { 4626 mInjector.binderRestoreCallingIdentity(ident); 4627 } 4628 4629 mOwners.setDeviceOwner(admin, ownerName, userId); 4630 mOwners.writeDeviceOwner(); 4631 updateDeviceOwnerLocked(); 4632 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 4633 4634 ident = mInjector.binderClearCallingIdentity(); 4635 try { 4636 // TODO Send to system too? 4637 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 4638 } finally { 4639 mInjector.binderRestoreCallingIdentity(ident); 4640 } 4641 return true; 4642 } 4643 } 4644 4645 public boolean isDeviceOwner(ComponentName who, int userId) { 4646 synchronized (this) { 4647 return mOwners.hasDeviceOwner() 4648 && mOwners.getDeviceOwnerUserId() == userId 4649 && mOwners.getDeviceOwnerComponent().equals(who); 4650 } 4651 } 4652 4653 public boolean isProfileOwner(ComponentName who, int userId) { 4654 final ComponentName profileOwner = getProfileOwner(userId); 4655 return who != null && who.equals(profileOwner); 4656 } 4657 4658 @Override 4659 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 4660 if (!mHasFeature) { 4661 return null; 4662 } 4663 if (!callingUserOnly) { 4664 enforceManageUsers(); 4665 } 4666 synchronized (this) { 4667 if (!mOwners.hasDeviceOwner()) { 4668 return null; 4669 } 4670 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 4671 mOwners.getDeviceOwnerUserId()) { 4672 return null; 4673 } 4674 return mOwners.getDeviceOwnerComponent(); 4675 } 4676 } 4677 4678 @Override 4679 public int getDeviceOwnerUserId() { 4680 if (!mHasFeature) { 4681 return UserHandle.USER_NULL; 4682 } 4683 enforceManageUsers(); 4684 synchronized (this) { 4685 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 4686 } 4687 } 4688 4689 /** 4690 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 4691 * MANAGE_USERS. 4692 */ 4693 @Override 4694 public String getDeviceOwnerName() { 4695 if (!mHasFeature) { 4696 return null; 4697 } 4698 enforceManageUsers(); 4699 synchronized (this) { 4700 if (!mOwners.hasDeviceOwner()) { 4701 return null; 4702 } 4703 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 4704 // Should setDeviceOwner/ProfileOwner still take a name? 4705 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 4706 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 4707 } 4708 } 4709 4710 // Returns the active device owner or null if there is no device owner. 4711 @VisibleForTesting 4712 ActiveAdmin getDeviceOwnerAdminLocked() { 4713 ComponentName component = mOwners.getDeviceOwnerComponent(); 4714 if (component == null) { 4715 return null; 4716 } 4717 4718 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 4719 final int n = policy.mAdminList.size(); 4720 for (int i = 0; i < n; i++) { 4721 ActiveAdmin admin = policy.mAdminList.get(i); 4722 if (component.equals(admin.info.getComponent())) { 4723 return admin; 4724 } 4725 } 4726 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 4727 return null; 4728 } 4729 4730 @Override 4731 public void clearDeviceOwner(String packageName) { 4732 Preconditions.checkNotNull(packageName, "packageName is null"); 4733 final int callingUid = mInjector.binderGetCallingUid(); 4734 try { 4735 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 4736 if (uid != callingUid) { 4737 throw new SecurityException("Invalid packageName"); 4738 } 4739 } catch (NameNotFoundException e) { 4740 throw new SecurityException(e); 4741 } 4742 synchronized (this) { 4743 if (!mOwners.hasDeviceOwner() 4744 || !mOwners.getDeviceOwnerComponent().getPackageName().equals(packageName) 4745 || (mOwners.getDeviceOwnerUserId() != UserHandle.getUserId(callingUid))) { 4746 throw new SecurityException( 4747 "clearDeviceOwner can only be called by the device owner"); 4748 } 4749 4750 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 4751 if (admin != null) { 4752 admin.disableCamera = false; 4753 admin.userRestrictions = null; 4754 } 4755 4756 clearUserPoliciesLocked(new UserHandle(UserHandle.USER_SYSTEM)); 4757 4758 mOwners.clearDeviceOwner(); 4759 mOwners.writeDeviceOwner(); 4760 updateDeviceOwnerLocked(); 4761 // Reactivate backup service. 4762 long ident = mInjector.binderClearCallingIdentity(); 4763 try { 4764 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 4765 } catch (RemoteException e) { 4766 throw new IllegalStateException("Failed reactivating backup service.", e); 4767 } finally { 4768 mInjector.binderRestoreCallingIdentity(ident); 4769 } 4770 } 4771 } 4772 4773 @Override 4774 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 4775 if (!mHasFeature) { 4776 return false; 4777 } 4778 if (who == null 4779 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 4780 throw new IllegalArgumentException("Component " + who 4781 + " not installed for userId:" + userHandle); 4782 } 4783 synchronized (this) { 4784 enforceCanSetProfileOwnerLocked(userHandle); 4785 mOwners.setProfileOwner(who, ownerName, userHandle); 4786 mOwners.writeProfileOwner(userHandle); 4787 return true; 4788 } 4789 } 4790 4791 @Override 4792 public void clearProfileOwner(ComponentName who) { 4793 if (!mHasFeature) { 4794 return; 4795 } 4796 UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 4797 // Check if this is the profile owner who is calling 4798 final ActiveAdmin admin = 4799 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4800 synchronized (this) { 4801 admin.disableCamera = false; 4802 admin.userRestrictions = null; 4803 clearUserPoliciesLocked(callingUser); 4804 final int userId = callingUser.getIdentifier(); 4805 mOwners.removeProfileOwner(userId); 4806 mOwners.writeProfileOwner(userId); 4807 } 4808 } 4809 4810 @Override 4811 public boolean setDeviceOwnerLockScreenInfo(ComponentName who, String info) { 4812 Preconditions.checkNotNull(who, "ComponentName is null"); 4813 if (!mHasFeature) { 4814 return false; 4815 } 4816 4817 synchronized (this) { 4818 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4819 long token = mInjector.binderClearCallingIdentity(); 4820 try { 4821 new LockPatternUtils(mContext).setDeviceOwnerInfo(info); 4822 } finally { 4823 mInjector.binderRestoreCallingIdentity(token); 4824 } 4825 return true; 4826 } 4827 } 4828 4829 @Override 4830 public String getDeviceOwnerLockScreenInfo() { 4831 return new LockPatternUtils(mContext).getDeviceOwnerInfo(); 4832 } 4833 4834 private void clearUserPoliciesLocked(UserHandle userHandle) { 4835 int userId = userHandle.getIdentifier(); 4836 // Reset some of the user-specific policies 4837 DevicePolicyData policy = getUserData(userId); 4838 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 4839 policy.mDelegatedCertInstallerPackage = null; 4840 policy.mApplicationRestrictionsManagingPackage = null; 4841 policy.mStatusBarDisabled = false; 4842 saveSettingsLocked(userId); 4843 4844 final long ident = mInjector.binderClearCallingIdentity(); 4845 try { 4846 mIPackageManager.updatePermissionFlagsForAllApps( 4847 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 4848 0 /* flagValues */, userHandle.getIdentifier()); 4849 pushUserRestrictions(userHandle.getIdentifier()); 4850 } catch (RemoteException re) { 4851 } finally { 4852 mInjector.binderRestoreCallingIdentity(ident); 4853 } 4854 } 4855 4856 @Override 4857 public boolean hasUserSetupCompleted() { 4858 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 4859 } 4860 4861 private boolean hasUserSetupCompleted(int userHandle) { 4862 if (!mHasFeature) { 4863 return true; 4864 } 4865 return getUserData(userHandle).mUserSetupComplete; 4866 } 4867 4868 @Override 4869 public void setProfileEnabled(ComponentName who) { 4870 if (!mHasFeature) { 4871 return; 4872 } 4873 Preconditions.checkNotNull(who, "ComponentName is null"); 4874 final int userHandle = UserHandle.getCallingUserId(); 4875 synchronized (this) { 4876 // Check if this is the profile owner who is calling 4877 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4878 int userId = UserHandle.getCallingUserId(); 4879 4880 long id = mInjector.binderClearCallingIdentity(); 4881 try { 4882 mUserManager.setUserEnabled(userId); 4883 UserInfo parent = mUserManager.getProfileParent(userId); 4884 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 4885 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 4886 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 4887 Intent.FLAG_RECEIVER_FOREGROUND); 4888 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 4889 } finally { 4890 mInjector.binderRestoreCallingIdentity(id); 4891 } 4892 } 4893 } 4894 4895 @Override 4896 public void setProfileName(ComponentName who, String profileName) { 4897 Preconditions.checkNotNull(who, "ComponentName is null"); 4898 int userId = UserHandle.getCallingUserId(); 4899 // Check if this is the profile owner (includes device owner). 4900 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4901 4902 long id = mInjector.binderClearCallingIdentity(); 4903 try { 4904 mUserManager.setUserName(userId, profileName); 4905 } finally { 4906 mInjector.binderRestoreCallingIdentity(id); 4907 } 4908 } 4909 4910 @Override 4911 public ComponentName getProfileOwner(int userHandle) { 4912 if (!mHasFeature) { 4913 return null; 4914 } 4915 4916 synchronized (this) { 4917 return mOwners.getProfileOwnerComponent(userHandle); 4918 } 4919 } 4920 4921 // Returns the active profile owner for this user or null if the current user has no 4922 // profile owner. 4923 @VisibleForTesting 4924 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 4925 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 4926 if (profileOwner == null) { 4927 return null; 4928 } 4929 DevicePolicyData policy = getUserData(userHandle); 4930 final int n = policy.mAdminList.size(); 4931 for (int i = 0; i < n; i++) { 4932 ActiveAdmin admin = policy.mAdminList.get(i); 4933 if (profileOwner.equals(admin.info.getComponent())) { 4934 return admin; 4935 } 4936 } 4937 return null; 4938 } 4939 4940 @Override 4941 public String getProfileOwnerName(int userHandle) { 4942 if (!mHasFeature) { 4943 return null; 4944 } 4945 enforceManageUsers(); 4946 ComponentName profileOwner = getProfileOwner(userHandle); 4947 if (profileOwner == null) { 4948 return null; 4949 } 4950 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 4951 } 4952 4953 /** 4954 * Canonical name for a given package. 4955 */ 4956 private String getApplicationLabel(String packageName, int userHandle) { 4957 long token = mInjector.binderClearCallingIdentity(); 4958 try { 4959 final Context userContext; 4960 try { 4961 UserHandle handle = new UserHandle(userHandle); 4962 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 4963 } catch (PackageManager.NameNotFoundException nnfe) { 4964 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 4965 return null; 4966 } 4967 ApplicationInfo appInfo = userContext.getApplicationInfo(); 4968 CharSequence result = null; 4969 if (appInfo != null) { 4970 PackageManager pm = userContext.getPackageManager(); 4971 result = pm.getApplicationLabel(appInfo); 4972 } 4973 return result != null ? result.toString() : null; 4974 } finally { 4975 mInjector.binderRestoreCallingIdentity(token); 4976 } 4977 } 4978 4979 /** 4980 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 4981 * permission. 4982 * The profile owner can only be set before the user setup phase has completed, 4983 * except for: 4984 * - SYSTEM_UID 4985 * - adb if there are not accounts. 4986 */ 4987 private void enforceCanSetProfileOwnerLocked(int userHandle) { 4988 UserInfo info = mUserManager.getUserInfo(userHandle); 4989 if (info == null) { 4990 // User doesn't exist. 4991 throw new IllegalArgumentException( 4992 "Attempted to set profile owner for invalid userId: " + userHandle); 4993 } 4994 if (info.isGuest()) { 4995 throw new IllegalStateException("Cannot set a profile owner on a guest"); 4996 } 4997 if (mOwners.hasProfileOwner(userHandle)) { 4998 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 4999 + "is already set."); 5000 } 5001 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 5002 throw new IllegalStateException("Trying to set the profile owner, but the user " 5003 + "already has a device owner."); 5004 } 5005 int callingUid = mInjector.binderGetCallingUid(); 5006 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 5007 if (hasUserSetupCompleted(userHandle) && 5008 AccountManager.get(mContext).getAccountsAsUser(userHandle).length > 0) { 5009 throw new IllegalStateException("Not allowed to set the profile owner because " 5010 + "there are already some accounts on the profile"); 5011 } 5012 return; 5013 } 5014 mContext.enforceCallingOrSelfPermission( 5015 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 5016 if (hasUserSetupCompleted(userHandle) 5017 && !UserHandle.isSameApp(callingUid, Process.SYSTEM_UID)) { 5018 throw new IllegalStateException("Cannot set the profile owner on a user which is " 5019 + "already set-up"); 5020 } 5021 } 5022 5023 /** 5024 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 5025 * permission. 5026 * The device owner can only be set before the setup phase of the primary user has completed, 5027 * except for adb if no accounts or additional users are present on the device. 5028 */ 5029 private void enforceCanSetDeviceOwnerLocked(int userId) { 5030 if (mOwners.hasDeviceOwner()) { 5031 throw new IllegalStateException("Trying to set the device owner, but device owner " 5032 + "is already set."); 5033 } 5034 if (mOwners.hasProfileOwner(userId)) { 5035 throw new IllegalStateException("Trying to set the device owner, but the user already " 5036 + "has a profile owner."); 5037 } 5038 if (!mUserManager.isUserRunning(new UserHandle(userId))) { 5039 throw new IllegalStateException("User not running: " + userId); 5040 } 5041 5042 int callingUid = mInjector.binderGetCallingUid(); 5043 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 5044 if (!hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 5045 return; 5046 } 5047 // STOPSHIP Do proper check in split user mode 5048 if (!mInjector.userManagerIsSplitSystemUser()) { 5049 if (mUserManager.getUserCount() > 1) { 5050 throw new IllegalStateException( 5051 "Not allowed to set the device owner because there " 5052 + "are already several users on the device"); 5053 } 5054 if (AccountManager.get(mContext).getAccounts().length > 0) { 5055 throw new IllegalStateException( 5056 "Not allowed to set the device owner because there " 5057 + "are already some accounts on the device"); 5058 } 5059 } 5060 return; 5061 } 5062 // STOPSHIP check the caller UID with userId 5063 5064 mContext.enforceCallingOrSelfPermission( 5065 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 5066 // STOPSHIP Do proper check in split user mode 5067 if (!mInjector.userManagerIsSplitSystemUser()) { 5068 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 5069 throw new IllegalStateException("Cannot set the device owner if the device is " 5070 + "already set-up"); 5071 } 5072 } 5073 } 5074 5075 private void enforceManageUsers() { 5076 final int callingUid = mInjector.binderGetCallingUid(); 5077 if (!(UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 5078 || callingUid == Process.ROOT_UID)) { 5079 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 5080 } 5081 } 5082 5083 private void enforceCrossUserPermission(int userHandle) { 5084 if (userHandle < 0) { 5085 throw new IllegalArgumentException("Invalid userId " + userHandle); 5086 } 5087 final int callingUid = mInjector.binderGetCallingUid(); 5088 if (userHandle == UserHandle.getUserId(callingUid)) return; 5089 if (!(UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 5090 || callingUid == Process.ROOT_UID)) { 5091 mContext.enforceCallingOrSelfPermission( 5092 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 5093 + " INTERACT_ACROSS_USERS_FULL permission"); 5094 } 5095 } 5096 5097 private void enforceNotManagedProfile(int userHandle, String message) { 5098 if(isManagedProfile(userHandle)) { 5099 throw new SecurityException("You can not " + message + " for a managed profile. "); 5100 } 5101 } 5102 5103 private int getCredentialOwner(int userHandle) { 5104 long ident = mInjector.binderClearCallingIdentity(); 5105 try { 5106 return mUserManager.getCredentialOwnerProfile(userHandle); 5107 } finally { 5108 mInjector.binderRestoreCallingIdentity(ident); 5109 } 5110 } 5111 5112 private boolean isManagedProfile(int userHandle) { 5113 long ident = mInjector.binderClearCallingIdentity(); 5114 try { 5115 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 5116 } finally { 5117 mInjector.binderRestoreCallingIdentity(ident); 5118 } 5119 } 5120 5121 private void enableIfNecessary(String packageName, int userId) { 5122 try { 5123 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 5124 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 5125 userId); 5126 if (ai.enabledSetting 5127 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 5128 mIPackageManager.setApplicationEnabledSetting(packageName, 5129 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 5130 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 5131 } 5132 } catch (RemoteException e) { 5133 } 5134 } 5135 5136 @Override 5137 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 5138 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 5139 != PackageManager.PERMISSION_GRANTED) { 5140 5141 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 5142 + mInjector.binderGetCallingPid() 5143 + ", uid=" + mInjector.binderGetCallingUid()); 5144 return; 5145 } 5146 5147 synchronized (this) { 5148 pw.println("Current Device Policy Manager state:"); 5149 mOwners.dump(" ", pw); 5150 int userCount = mUserData.size(); 5151 for (int u = 0; u < userCount; u++) { 5152 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 5153 pw.println(); 5154 pw.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 5155 final int N = policy.mAdminList.size(); 5156 for (int i=0; i<N; i++) { 5157 ActiveAdmin ap = policy.mAdminList.get(i); 5158 if (ap != null) { 5159 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 5160 pw.println(":"); 5161 ap.dump(" ", pw); 5162 } 5163 } 5164 if (!policy.mRemovingAdmins.isEmpty()) { 5165 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 5166 + policy.mRemovingAdmins); 5167 } 5168 5169 pw.println(" "); 5170 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 5171 } 5172 } 5173 } 5174 5175 @Override 5176 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 5177 ComponentName activity) { 5178 Preconditions.checkNotNull(who, "ComponentName is null"); 5179 final int userHandle = UserHandle.getCallingUserId(); 5180 synchronized (this) { 5181 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5182 5183 long id = mInjector.binderClearCallingIdentity(); 5184 try { 5185 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 5186 } catch (RemoteException re) { 5187 // Shouldn't happen 5188 } finally { 5189 mInjector.binderRestoreCallingIdentity(id); 5190 } 5191 } 5192 } 5193 5194 @Override 5195 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 5196 Preconditions.checkNotNull(who, "ComponentName is null"); 5197 final int userHandle = UserHandle.getCallingUserId(); 5198 synchronized (this) { 5199 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5200 5201 long id = mInjector.binderClearCallingIdentity(); 5202 try { 5203 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 5204 } catch (RemoteException re) { 5205 // Shouldn't happen 5206 } finally { 5207 mInjector.binderRestoreCallingIdentity(id); 5208 } 5209 } 5210 } 5211 5212 @Override 5213 public void setApplicationRestrictionsManagingPackage(ComponentName admin, String packageName) { 5214 final int userHandle = mInjector.userHandleGetCallingUserId(); 5215 synchronized (this) { 5216 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5217 DevicePolicyData policy = getUserData(userHandle); 5218 policy.mApplicationRestrictionsManagingPackage = packageName; 5219 saveSettingsLocked(userHandle); 5220 } 5221 } 5222 5223 @Override 5224 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 5225 final int userHandle = mInjector.userHandleGetCallingUserId(); 5226 synchronized (this) { 5227 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5228 DevicePolicyData policy = getUserData(userHandle); 5229 return policy.mApplicationRestrictionsManagingPackage; 5230 } 5231 } 5232 5233 @Override 5234 public boolean isCallerApplicationRestrictionsManagingPackage() { 5235 final int callingUid = mInjector.binderGetCallingUid(); 5236 final int userHandle = UserHandle.getUserId(callingUid); 5237 synchronized (this) { 5238 final DevicePolicyData policy = getUserData(userHandle); 5239 if (policy.mApplicationRestrictionsManagingPackage == null) { 5240 return false; 5241 } 5242 5243 try { 5244 int uid = mContext.getPackageManager().getPackageUid( 5245 policy.mApplicationRestrictionsManagingPackage, userHandle); 5246 return uid == callingUid; 5247 } catch (NameNotFoundException e) { 5248 return false; 5249 } 5250 } 5251 } 5252 5253 private void enforceCanManageApplicationRestrictions(ComponentName who) { 5254 if (who != null) { 5255 synchronized (this) { 5256 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5257 } 5258 } else if (!isCallerApplicationRestrictionsManagingPackage()) { 5259 throw new SecurityException( 5260 "No admin component given, and caller cannot manage application restrictions " 5261 + "for other apps."); 5262 } 5263 } 5264 5265 @Override 5266 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 5267 enforceCanManageApplicationRestrictions(who); 5268 5269 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 5270 final long id = mInjector.binderClearCallingIdentity(); 5271 try { 5272 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 5273 } finally { 5274 mInjector.binderRestoreCallingIdentity(id); 5275 } 5276 } 5277 5278 @Override 5279 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 5280 PersistableBundle args) { 5281 if (!mHasFeature) { 5282 return; 5283 } 5284 Preconditions.checkNotNull(admin, "admin is null"); 5285 Preconditions.checkNotNull(agent, "agent is null"); 5286 final int userHandle = UserHandle.getCallingUserId(); 5287 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 5288 synchronized (this) { 5289 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 5290 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 5291 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 5292 saveSettingsLocked(userHandle); 5293 } 5294 } 5295 5296 @Override 5297 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 5298 ComponentName agent, int userHandle) { 5299 if (!mHasFeature) { 5300 return null; 5301 } 5302 Preconditions.checkNotNull(agent, "agent null"); 5303 enforceCrossUserPermission(userHandle); 5304 5305 synchronized (this) { 5306 final String componentName = agent.flattenToString(); 5307 if (admin != null) { 5308 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 5309 if (ap == null) return null; 5310 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 5311 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 5312 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 5313 result.add(trustAgentInfo.options); 5314 return result; 5315 } 5316 5317 // Return strictest policy for this user and profiles that are visible from this user. 5318 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 5319 List<PersistableBundle> result = null; 5320 5321 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 5322 // of the options. If any admin doesn't have options, discard options for the rest 5323 // and return null. 5324 boolean allAdminsHaveOptions = true; 5325 for (UserInfo userInfo : profiles) { 5326 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 5327 final int N = policy.mAdminList.size(); 5328 for (int i=0; i < N; i++) { 5329 final ActiveAdmin active = policy.mAdminList.get(i); 5330 final boolean disablesTrust = (active.disabledKeyguardFeatures 5331 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 5332 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 5333 if (info != null && info.options != null && !info.options.isEmpty()) { 5334 if (disablesTrust) { 5335 if (result == null) { 5336 result = new ArrayList<PersistableBundle>(); 5337 } 5338 result.add(info.options); 5339 } else { 5340 Log.w(LOG_TAG, "Ignoring admin " + active.info 5341 + " because it has trust options but doesn't declare " 5342 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 5343 } 5344 } else if (disablesTrust) { 5345 allAdminsHaveOptions = false; 5346 break; 5347 } 5348 } 5349 } 5350 return allAdminsHaveOptions ? result : null; 5351 } 5352 } 5353 5354 @Override 5355 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 5356 Preconditions.checkNotNull(who, "ComponentName is null"); 5357 synchronized (this) { 5358 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5359 5360 int userHandle = UserHandle.getCallingUserId(); 5361 DevicePolicyData userData = getUserData(userHandle); 5362 userData.mRestrictionsProvider = permissionProvider; 5363 saveSettingsLocked(userHandle); 5364 } 5365 } 5366 5367 @Override 5368 public ComponentName getRestrictionsProvider(int userHandle) { 5369 synchronized (this) { 5370 if (!UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID)) { 5371 throw new SecurityException("Only the system can query the permission provider"); 5372 } 5373 DevicePolicyData userData = getUserData(userHandle); 5374 return userData != null ? userData.mRestrictionsProvider : null; 5375 } 5376 } 5377 5378 @Override 5379 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 5380 Preconditions.checkNotNull(who, "ComponentName is null"); 5381 int callingUserId = UserHandle.getCallingUserId(); 5382 synchronized (this) { 5383 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5384 5385 long id = mInjector.binderClearCallingIdentity(); 5386 try { 5387 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5388 if (parent == null) { 5389 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 5390 + "parent"); 5391 return; 5392 } 5393 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 5394 mIPackageManager.addCrossProfileIntentFilter( 5395 filter, who.getPackageName(), callingUserId, parent.id, 0); 5396 } 5397 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 5398 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 5399 parent.id, callingUserId, 0); 5400 } 5401 } catch (RemoteException re) { 5402 // Shouldn't happen 5403 } finally { 5404 mInjector.binderRestoreCallingIdentity(id); 5405 } 5406 } 5407 } 5408 5409 @Override 5410 public void clearCrossProfileIntentFilters(ComponentName who) { 5411 Preconditions.checkNotNull(who, "ComponentName is null"); 5412 int callingUserId = UserHandle.getCallingUserId(); 5413 synchronized (this) { 5414 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5415 long id = mInjector.binderClearCallingIdentity(); 5416 try { 5417 UserInfo parent = mUserManager.getProfileParent(callingUserId); 5418 if (parent == null) { 5419 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 5420 + "parent"); 5421 return; 5422 } 5423 // Removing those that go from the managed profile to the parent. 5424 mIPackageManager.clearCrossProfileIntentFilters( 5425 callingUserId, who.getPackageName()); 5426 // And those that go from the parent to the managed profile. 5427 // If we want to support multiple managed profiles, we will have to only remove 5428 // those that have callingUserId as their target. 5429 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 5430 } catch (RemoteException re) { 5431 // Shouldn't happen 5432 } finally { 5433 mInjector.binderRestoreCallingIdentity(id); 5434 } 5435 } 5436 } 5437 5438 /** 5439 * @return true if all packages in enabledPackages are either in the list 5440 * permittedList or are a system app. 5441 */ 5442 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 5443 List<String> permittedList) { 5444 int userIdToCheck = UserHandle.getCallingUserId(); 5445 long id = mInjector.binderClearCallingIdentity(); 5446 try { 5447 // If we have an enabled packages list for a managed profile the packages 5448 // we should check are installed for the parent user. 5449 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 5450 if (user.isManagedProfile()) { 5451 userIdToCheck = user.profileGroupId; 5452 } 5453 5454 for (String enabledPackage : enabledPackages) { 5455 boolean systemService = false; 5456 try { 5457 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 5458 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 5459 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5460 } catch (RemoteException e) { 5461 Log.i(LOG_TAG, "Can't talk to package managed", e); 5462 } 5463 if (!systemService && !permittedList.contains(enabledPackage)) { 5464 return false; 5465 } 5466 } 5467 } finally { 5468 mInjector.binderRestoreCallingIdentity(id); 5469 } 5470 return true; 5471 } 5472 5473 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 5474 // Not using AccessibilityManager.getInstance because that guesses 5475 // at the user you require based on callingUid and caches for a given 5476 // process. 5477 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 5478 IAccessibilityManager service = iBinder == null 5479 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 5480 return new AccessibilityManager(mContext, service, userId); 5481 } 5482 5483 @Override 5484 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 5485 if (!mHasFeature) { 5486 return false; 5487 } 5488 Preconditions.checkNotNull(who, "ComponentName is null"); 5489 5490 if (packageList != null) { 5491 int userId = UserHandle.getCallingUserId(); 5492 List<AccessibilityServiceInfo> enabledServices = null; 5493 long id = mInjector.binderClearCallingIdentity(); 5494 try { 5495 UserInfo user = mUserManager.getUserInfo(userId); 5496 if (user.isManagedProfile()) { 5497 userId = user.profileGroupId; 5498 } 5499 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 5500 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 5501 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 5502 } finally { 5503 mInjector.binderRestoreCallingIdentity(id); 5504 } 5505 5506 if (enabledServices != null) { 5507 List<String> enabledPackages = new ArrayList<String>(); 5508 for (AccessibilityServiceInfo service : enabledServices) { 5509 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 5510 } 5511 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5512 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 5513 + "because it contains already enabled accesibility services."); 5514 return false; 5515 } 5516 } 5517 } 5518 5519 synchronized (this) { 5520 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5521 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5522 admin.permittedAccessiblityServices = packageList; 5523 saveSettingsLocked(UserHandle.getCallingUserId()); 5524 } 5525 return true; 5526 } 5527 5528 @Override 5529 public List getPermittedAccessibilityServices(ComponentName who) { 5530 if (!mHasFeature) { 5531 return null; 5532 } 5533 Preconditions.checkNotNull(who, "ComponentName is null"); 5534 5535 synchronized (this) { 5536 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5537 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5538 return admin.permittedAccessiblityServices; 5539 } 5540 } 5541 5542 @Override 5543 public List getPermittedAccessibilityServicesForUser(int userId) { 5544 if (!mHasFeature) { 5545 return null; 5546 } 5547 synchronized (this) { 5548 List<String> result = null; 5549 // If we have multiple profiles we return the intersection of the 5550 // permitted lists. This can happen in cases where we have a device 5551 // and profile owner. 5552 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5553 final int PROFILES_SIZE = profiles.size(); 5554 for (int i = 0; i < PROFILES_SIZE; ++i) { 5555 // Just loop though all admins, only device or profiles 5556 // owners can have permitted lists set. 5557 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5558 final int N = policy.mAdminList.size(); 5559 for (int j = 0; j < N; j++) { 5560 ActiveAdmin admin = policy.mAdminList.get(j); 5561 List<String> fromAdmin = admin.permittedAccessiblityServices; 5562 if (fromAdmin != null) { 5563 if (result == null) { 5564 result = new ArrayList<String>(fromAdmin); 5565 } else { 5566 result.retainAll(fromAdmin); 5567 } 5568 } 5569 } 5570 } 5571 5572 // If we have a permitted list add all system accessibility services. 5573 if (result != null) { 5574 long id = mInjector.binderClearCallingIdentity(); 5575 try { 5576 UserInfo user = mUserManager.getUserInfo(userId); 5577 if (user.isManagedProfile()) { 5578 userId = user.profileGroupId; 5579 } 5580 AccessibilityManager accessibilityManager = 5581 getAccessibilityManagerForUser(userId); 5582 List<AccessibilityServiceInfo> installedServices = 5583 accessibilityManager.getInstalledAccessibilityServiceList(); 5584 5585 if (installedServices != null) { 5586 for (AccessibilityServiceInfo service : installedServices) { 5587 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 5588 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5589 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5590 result.add(serviceInfo.packageName); 5591 } 5592 } 5593 } 5594 } finally { 5595 mInjector.binderRestoreCallingIdentity(id); 5596 } 5597 } 5598 5599 return result; 5600 } 5601 } 5602 5603 private boolean checkCallerIsCurrentUserOrProfile() { 5604 int callingUserId = UserHandle.getCallingUserId(); 5605 long token = mInjector.binderClearCallingIdentity(); 5606 try { 5607 UserInfo currentUser; 5608 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 5609 try { 5610 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5611 } catch (RemoteException e) { 5612 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 5613 return false; 5614 } 5615 5616 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 5617 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 5618 + "of a user that isn't the foreground user."); 5619 return false; 5620 } 5621 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 5622 Slog.e(LOG_TAG, "Cannot set permitted input methods " 5623 + "of a user that isn't the foreground user."); 5624 return false; 5625 } 5626 } finally { 5627 mInjector.binderRestoreCallingIdentity(token); 5628 } 5629 return true; 5630 } 5631 5632 @Override 5633 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 5634 if (!mHasFeature) { 5635 return false; 5636 } 5637 Preconditions.checkNotNull(who, "ComponentName is null"); 5638 5639 // TODO When InputMethodManager supports per user calls remove 5640 // this restriction. 5641 if (!checkCallerIsCurrentUserOrProfile()) { 5642 return false; 5643 } 5644 5645 if (packageList != null) { 5646 // InputMethodManager fetches input methods for current user. 5647 // So this can only be set when calling user is the current user 5648 // or parent is current user in case of managed profiles. 5649 InputMethodManager inputMethodManager = 5650 mContext.getSystemService(InputMethodManager.class); 5651 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 5652 5653 if (enabledImes != null) { 5654 List<String> enabledPackages = new ArrayList<String>(); 5655 for (InputMethodInfo ime : enabledImes) { 5656 enabledPackages.add(ime.getPackageName()); 5657 } 5658 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 5659 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 5660 + "because it contains already enabled input method."); 5661 return false; 5662 } 5663 } 5664 } 5665 5666 synchronized (this) { 5667 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5668 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5669 admin.permittedInputMethods = packageList; 5670 saveSettingsLocked(UserHandle.getCallingUserId()); 5671 } 5672 return true; 5673 } 5674 5675 @Override 5676 public List getPermittedInputMethods(ComponentName who) { 5677 if (!mHasFeature) { 5678 return null; 5679 } 5680 Preconditions.checkNotNull(who, "ComponentName is null"); 5681 5682 synchronized (this) { 5683 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5684 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5685 return admin.permittedInputMethods; 5686 } 5687 } 5688 5689 @Override 5690 public List getPermittedInputMethodsForCurrentUser() { 5691 UserInfo currentUser; 5692 try { 5693 currentUser = mInjector.getIActivityManager().getCurrentUser(); 5694 } catch (RemoteException e) { 5695 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 5696 // Activity managed is dead, just allow all IMEs 5697 return null; 5698 } 5699 5700 int userId = currentUser.id; 5701 synchronized (this) { 5702 List<String> result = null; 5703 // If we have multiple profiles we return the intersection of the 5704 // permitted lists. This can happen in cases where we have a device 5705 // and profile owner. 5706 List<UserInfo> profiles = mUserManager.getProfiles(userId); 5707 final int PROFILES_SIZE = profiles.size(); 5708 for (int i = 0; i < PROFILES_SIZE; ++i) { 5709 // Just loop though all admins, only device or profiles 5710 // owners can have permitted lists set. 5711 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 5712 final int N = policy.mAdminList.size(); 5713 for (int j = 0; j < N; j++) { 5714 ActiveAdmin admin = policy.mAdminList.get(j); 5715 List<String> fromAdmin = admin.permittedInputMethods; 5716 if (fromAdmin != null) { 5717 if (result == null) { 5718 result = new ArrayList<String>(fromAdmin); 5719 } else { 5720 result.retainAll(fromAdmin); 5721 } 5722 } 5723 } 5724 } 5725 5726 // If we have a permitted list add all system input methods. 5727 if (result != null) { 5728 InputMethodManager inputMethodManager = 5729 mContext.getSystemService(InputMethodManager.class); 5730 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 5731 long id = mInjector.binderClearCallingIdentity(); 5732 try { 5733 if (imes != null) { 5734 for (InputMethodInfo ime : imes) { 5735 ServiceInfo serviceInfo = ime.getServiceInfo(); 5736 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 5737 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 5738 result.add(serviceInfo.packageName); 5739 } 5740 } 5741 } 5742 } finally { 5743 mInjector.binderRestoreCallingIdentity(id); 5744 } 5745 } 5746 return result; 5747 } 5748 } 5749 5750 @Override 5751 public UserHandle createUser(ComponentName who, String name) { 5752 Preconditions.checkNotNull(who, "ComponentName is null"); 5753 synchronized (this) { 5754 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5755 5756 long id = mInjector.binderClearCallingIdentity(); 5757 try { 5758 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 5759 if (userInfo != null) { 5760 return userInfo.getUserHandle(); 5761 } 5762 return null; 5763 } finally { 5764 mInjector.binderRestoreCallingIdentity(id); 5765 } 5766 } 5767 } 5768 5769 @Override 5770 public UserHandle createAndInitializeUser(ComponentName who, String name, 5771 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 5772 UserHandle user = createUser(who, name); 5773 if (user == null) { 5774 return null; 5775 } 5776 long id = mInjector.binderClearCallingIdentity(); 5777 try { 5778 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 5779 5780 final int userHandle = user.getIdentifier(); 5781 try { 5782 // Install the profile owner if not present. 5783 if (!mIPackageManager.isPackageAvailable(profileOwnerPkg, userHandle)) { 5784 mIPackageManager.installExistingPackageAsUser(profileOwnerPkg, userHandle); 5785 } 5786 5787 // Start user in background. 5788 mInjector.getIActivityManager().startUserInBackground(userHandle); 5789 } catch (RemoteException e) { 5790 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 5791 } 5792 5793 setActiveAdmin(profileOwnerComponent, true, userHandle, adminExtras); 5794 setProfileOwner(profileOwnerComponent, ownerName, userHandle); 5795 return user; 5796 } finally { 5797 mInjector.binderRestoreCallingIdentity(id); 5798 } 5799 } 5800 5801 @Override 5802 public boolean removeUser(ComponentName who, UserHandle userHandle) { 5803 Preconditions.checkNotNull(who, "ComponentName is null"); 5804 synchronized (this) { 5805 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5806 5807 long id = mInjector.binderClearCallingIdentity(); 5808 try { 5809 return mUserManager.removeUser(userHandle.getIdentifier()); 5810 } finally { 5811 mInjector.binderRestoreCallingIdentity(id); 5812 } 5813 } 5814 } 5815 5816 @Override 5817 public boolean switchUser(ComponentName who, UserHandle userHandle) { 5818 Preconditions.checkNotNull(who, "ComponentName is null"); 5819 synchronized (this) { 5820 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5821 5822 long id = mInjector.binderClearCallingIdentity(); 5823 try { 5824 int userId = UserHandle.USER_SYSTEM; 5825 if (userHandle != null) { 5826 userId = userHandle.getIdentifier(); 5827 } 5828 return mInjector.getIActivityManager().switchUser(userId); 5829 } catch (RemoteException e) { 5830 Log.e(LOG_TAG, "Couldn't switch user", e); 5831 return false; 5832 } finally { 5833 mInjector.binderRestoreCallingIdentity(id); 5834 } 5835 } 5836 } 5837 5838 @Override 5839 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 5840 enforceCanManageApplicationRestrictions(who); 5841 5842 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 5843 final long id = mInjector.binderClearCallingIdentity(); 5844 try { 5845 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 5846 // if no restrictions were saved, mUserManager.getApplicationRestrictions 5847 // returns null, but DPM method should return an empty Bundle as per JavaDoc 5848 return bundle != null ? bundle : Bundle.EMPTY; 5849 } finally { 5850 mInjector.binderRestoreCallingIdentity(id); 5851 } 5852 } 5853 5854 @Override 5855 public boolean setPackageSuspended(ComponentName who, String packageName, 5856 boolean suspended) { 5857 Preconditions.checkNotNull(who, "ComponentName is null"); 5858 int callingUserId = UserHandle.getCallingUserId(); 5859 synchronized (this) { 5860 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5861 5862 long id = mInjector.binderClearCallingIdentity(); 5863 try { 5864 return mIPackageManager.setPackageSuspendedAsUser( 5865 packageName, suspended, callingUserId); 5866 } catch (RemoteException re) { 5867 // Shouldn't happen. 5868 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 5869 } finally { 5870 mInjector.binderRestoreCallingIdentity(id); 5871 } 5872 return false; 5873 } 5874 } 5875 5876 @Override 5877 public boolean getPackageSuspended(ComponentName who, String packageName) { 5878 Preconditions.checkNotNull(who, "ComponentName is null"); 5879 int callingUserId = UserHandle.getCallingUserId(); 5880 synchronized (this) { 5881 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5882 5883 long id = mInjector.binderClearCallingIdentity(); 5884 try { 5885 ApplicationInfo appInfo = mIPackageManager.getApplicationInfo( 5886 packageName, 0, callingUserId); 5887 return appInfo != null && 5888 (appInfo.flags & ApplicationInfo.FLAG_SUSPENDED) != 0; 5889 } catch (RemoteException re) { 5890 // Shouldn't happen. 5891 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 5892 } finally { 5893 mInjector.binderRestoreCallingIdentity(id); 5894 } 5895 return false; 5896 } 5897 } 5898 5899 @Override 5900 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 5901 Preconditions.checkNotNull(who, "ComponentName is null"); 5902 final int userHandle = mInjector.userHandleGetCallingUserId(); 5903 synchronized (this) { 5904 ActiveAdmin activeAdmin = 5905 getActiveAdminForCallerLocked(who, 5906 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5907 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 5908 if (isDeviceOwner) { 5909 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 5910 throw new SecurityException("Device owner cannot set user restriction " + key); 5911 } 5912 } else { // profile owner 5913 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 5914 throw new SecurityException("Profile owner cannot set user restriction " + key); 5915 } 5916 } 5917 5918 // Save the restriction to ActiveAdmin. 5919 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 5920 saveSettingsLocked(userHandle); 5921 5922 pushUserRestrictions(userHandle); 5923 5924 sendChangedNotification(userHandle); 5925 } 5926 } 5927 5928 private void pushUserRestrictions(int userId) { 5929 synchronized (this) { 5930 final Bundle global; 5931 final Bundle local = new Bundle(); 5932 if (mOwners.isDeviceOwnerUserId(userId)) { 5933 global = new Bundle(); 5934 5935 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5936 if (deviceOwner == null) { 5937 return; // Shouldn't happen. 5938 } 5939 5940 UserRestrictionsUtils.sortToGlobalAndLocal(deviceOwner.userRestrictions, 5941 global, local); 5942 // DO can disable camera globally. 5943 if (deviceOwner.disableCamera) { 5944 global.putBoolean(UserManager.DISALLOW_CAMERA, true); 5945 } 5946 } else { 5947 global = null; 5948 5949 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 5950 if (profileOwner != null) { 5951 UserRestrictionsUtils.merge(local, profileOwner.userRestrictions); 5952 } 5953 } 5954 // Also merge in *local* camera restriction. 5955 if (getCameraDisabled(/* who= */ null, 5956 userId, /* mergeDeviceOwnerRestriction= */ false)) { 5957 local.putBoolean(UserManager.DISALLOW_CAMERA, true); 5958 } 5959 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, local, global); 5960 } 5961 } 5962 5963 @Override 5964 public Bundle getUserRestrictions(ComponentName who, int userHandle) { 5965 Preconditions.checkNotNull(who, "ComponentName is null"); 5966 enforceCrossUserPermission(userHandle); 5967 synchronized (this) { 5968 ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(who, userHandle); 5969 if (activeAdmin == null) { 5970 throw new SecurityException("No active admin: " + activeAdmin); 5971 } 5972 if (activeAdmin.getUid() != mInjector.binderGetCallingUid()) { 5973 mContext.enforceCallingOrSelfPermission( 5974 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 5975 } 5976 return activeAdmin.userRestrictions; 5977 } 5978 } 5979 5980 @Override 5981 public boolean setApplicationHidden(ComponentName who, String packageName, 5982 boolean hidden) { 5983 Preconditions.checkNotNull(who, "ComponentName is null"); 5984 int callingUserId = UserHandle.getCallingUserId(); 5985 synchronized (this) { 5986 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5987 5988 long id = mInjector.binderClearCallingIdentity(); 5989 try { 5990 return mIPackageManager.setApplicationHiddenSettingAsUser( 5991 packageName, hidden, callingUserId); 5992 } catch (RemoteException re) { 5993 // shouldn't happen 5994 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 5995 } finally { 5996 mInjector.binderRestoreCallingIdentity(id); 5997 } 5998 return false; 5999 } 6000 } 6001 6002 @Override 6003 public boolean isApplicationHidden(ComponentName who, String packageName) { 6004 Preconditions.checkNotNull(who, "ComponentName is null"); 6005 int callingUserId = UserHandle.getCallingUserId(); 6006 synchronized (this) { 6007 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6008 6009 long id = mInjector.binderClearCallingIdentity(); 6010 try { 6011 return mIPackageManager.getApplicationHiddenSettingAsUser( 6012 packageName, callingUserId); 6013 } catch (RemoteException re) { 6014 // shouldn't happen 6015 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 6016 } finally { 6017 mInjector.binderRestoreCallingIdentity(id); 6018 } 6019 return false; 6020 } 6021 } 6022 6023 @Override 6024 public void enableSystemApp(ComponentName who, String packageName) { 6025 Preconditions.checkNotNull(who, "ComponentName is null"); 6026 synchronized (this) { 6027 // This API can only be called by an active device admin, 6028 // so try to retrieve it to check that the caller is one. 6029 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6030 6031 int userId = UserHandle.getCallingUserId(); 6032 long id = mInjector.binderClearCallingIdentity(); 6033 6034 try { 6035 if (VERBOSE_LOG) { 6036 Slog.v(LOG_TAG, "installing " + packageName + " for " 6037 + userId); 6038 } 6039 6040 UserManager um = UserManager.get(mContext); 6041 UserInfo primaryUser = um.getProfileParent(userId); 6042 6043 // Call did not come from a managed profile 6044 if (primaryUser == null) { 6045 primaryUser = um.getUserInfo(userId); 6046 } 6047 6048 if (!isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 6049 throw new IllegalArgumentException("Only system apps can be enabled this way."); 6050 } 6051 6052 // Install the app. 6053 mIPackageManager.installExistingPackageAsUser(packageName, userId); 6054 6055 } catch (RemoteException re) { 6056 // shouldn't happen 6057 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 6058 } finally { 6059 mInjector.binderRestoreCallingIdentity(id); 6060 } 6061 } 6062 } 6063 6064 @Override 6065 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 6066 Preconditions.checkNotNull(who, "ComponentName is null"); 6067 synchronized (this) { 6068 // This API can only be called by an active device admin, 6069 // so try to retrieve it to check that the caller is one. 6070 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6071 6072 int userId = UserHandle.getCallingUserId(); 6073 long id = mInjector.binderClearCallingIdentity(); 6074 6075 try { 6076 UserManager um = UserManager.get(mContext); 6077 UserInfo primaryUser = um.getProfileParent(userId); 6078 6079 // Call did not come from a managed profile. 6080 if (primaryUser == null) { 6081 primaryUser = um.getUserInfo(userId); 6082 } 6083 6084 List<ResolveInfo> activitiesToEnable = mIPackageManager.queryIntentActivities( 6085 intent, 6086 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 6087 0, // no flags 6088 primaryUser.id); 6089 6090 if (VERBOSE_LOG) { 6091 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 6092 } 6093 int numberOfAppsInstalled = 0; 6094 if (activitiesToEnable != null) { 6095 for (ResolveInfo info : activitiesToEnable) { 6096 if (info.activityInfo != null) { 6097 String packageName = info.activityInfo.packageName; 6098 if (isSystemApp(mIPackageManager, packageName, primaryUser.id)) { 6099 numberOfAppsInstalled++; 6100 mIPackageManager.installExistingPackageAsUser(packageName, userId); 6101 } else { 6102 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 6103 + " system app"); 6104 } 6105 } 6106 } 6107 } 6108 return numberOfAppsInstalled; 6109 } catch (RemoteException e) { 6110 // shouldn't happen 6111 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 6112 return 0; 6113 } finally { 6114 mInjector.binderRestoreCallingIdentity(id); 6115 } 6116 } 6117 } 6118 6119 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 6120 throws RemoteException { 6121 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 6122 userId); 6123 if (appInfo == null) { 6124 throw new IllegalArgumentException("The application " + packageName + 6125 " is not present on this device"); 6126 } 6127 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 6128 } 6129 6130 @Override 6131 public void setAccountManagementDisabled(ComponentName who, String accountType, 6132 boolean disabled) { 6133 if (!mHasFeature) { 6134 return; 6135 } 6136 Preconditions.checkNotNull(who, "ComponentName is null"); 6137 synchronized (this) { 6138 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6139 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6140 if (disabled) { 6141 ap.accountTypesWithManagementDisabled.add(accountType); 6142 } else { 6143 ap.accountTypesWithManagementDisabled.remove(accountType); 6144 } 6145 saveSettingsLocked(UserHandle.getCallingUserId()); 6146 } 6147 } 6148 6149 @Override 6150 public String[] getAccountTypesWithManagementDisabled() { 6151 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 6152 } 6153 6154 @Override 6155 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 6156 enforceCrossUserPermission(userId); 6157 if (!mHasFeature) { 6158 return null; 6159 } 6160 synchronized (this) { 6161 DevicePolicyData policy = getUserData(userId); 6162 final int N = policy.mAdminList.size(); 6163 ArraySet<String> resultSet = new ArraySet<>(); 6164 for (int i = 0; i < N; i++) { 6165 ActiveAdmin admin = policy.mAdminList.get(i); 6166 resultSet.addAll(admin.accountTypesWithManagementDisabled); 6167 } 6168 return resultSet.toArray(new String[resultSet.size()]); 6169 } 6170 } 6171 6172 @Override 6173 public void setUninstallBlocked(ComponentName who, String packageName, 6174 boolean uninstallBlocked) { 6175 Preconditions.checkNotNull(who, "ComponentName is null"); 6176 final int userId = UserHandle.getCallingUserId(); 6177 synchronized (this) { 6178 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6179 6180 long id = mInjector.binderClearCallingIdentity(); 6181 try { 6182 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 6183 } catch (RemoteException re) { 6184 // Shouldn't happen. 6185 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 6186 } finally { 6187 mInjector.binderRestoreCallingIdentity(id); 6188 } 6189 } 6190 } 6191 6192 @Override 6193 public boolean isUninstallBlocked(ComponentName who, String packageName) { 6194 // This function should return true if and only if the package is blocked by 6195 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 6196 // when the package is a system app, or when it is an active device admin. 6197 final int userId = UserHandle.getCallingUserId(); 6198 6199 synchronized (this) { 6200 if (who != null) { 6201 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6202 } 6203 6204 long id = mInjector.binderClearCallingIdentity(); 6205 try { 6206 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 6207 } catch (RemoteException re) { 6208 // Shouldn't happen. 6209 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 6210 } finally { 6211 mInjector.binderRestoreCallingIdentity(id); 6212 } 6213 } 6214 return false; 6215 } 6216 6217 @Override 6218 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 6219 if (!mHasFeature) { 6220 return; 6221 } 6222 Preconditions.checkNotNull(who, "ComponentName is null"); 6223 synchronized (this) { 6224 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6225 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6226 if (admin.disableCallerId != disabled) { 6227 admin.disableCallerId = disabled; 6228 saveSettingsLocked(UserHandle.getCallingUserId()); 6229 } 6230 } 6231 } 6232 6233 @Override 6234 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 6235 if (!mHasFeature) { 6236 return false; 6237 } 6238 Preconditions.checkNotNull(who, "ComponentName is null"); 6239 synchronized (this) { 6240 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6241 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6242 return admin.disableCallerId; 6243 } 6244 } 6245 6246 @Override 6247 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 6248 // TODO: Should there be a check to make sure this relationship is within a profile group? 6249 //enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 6250 synchronized (this) { 6251 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 6252 return (admin != null) ? admin.disableCallerId : false; 6253 } 6254 } 6255 6256 @Override 6257 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 6258 long actualDirectoryId, Intent originalIntent) { 6259 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent( 6260 actualLookupKey, actualContactId, actualDirectoryId, originalIntent); 6261 final int callingUserId = UserHandle.getCallingUserId(); 6262 6263 final long ident = mInjector.binderClearCallingIdentity(); 6264 try { 6265 synchronized (this) { 6266 final int managedUserId = getManagedUserId(callingUserId); 6267 if (managedUserId < 0) { 6268 return; 6269 } 6270 if (getCrossProfileCallerIdDisabledForUser(managedUserId)) { 6271 if (VERBOSE_LOG) { 6272 Log.v(LOG_TAG, 6273 "Cross-profile contacts access disabled for user " + managedUserId); 6274 } 6275 return; 6276 } 6277 ContactsInternal.startQuickContactWithErrorToastForUser( 6278 mContext, intent, new UserHandle(managedUserId)); 6279 } 6280 } finally { 6281 mInjector.binderRestoreCallingIdentity(ident); 6282 } 6283 } 6284 6285 /** 6286 * @return the user ID of the managed user that is linked to the current user, if any. 6287 * Otherwise -1. 6288 */ 6289 public int getManagedUserId(int callingUserId) { 6290 if (VERBOSE_LOG) { 6291 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 6292 } 6293 6294 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 6295 if (ui.id == callingUserId || !ui.isManagedProfile()) { 6296 continue; // Caller user self, or not a managed profile. Skip. 6297 } 6298 if (VERBOSE_LOG) { 6299 Log.v(LOG_TAG, "Managed user=" + ui.id); 6300 } 6301 return ui.id; 6302 } 6303 if (VERBOSE_LOG) { 6304 Log.v(LOG_TAG, "Managed user not found."); 6305 } 6306 return -1; 6307 } 6308 6309 @Override 6310 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 6311 if (!mHasFeature) { 6312 return; 6313 } 6314 Preconditions.checkNotNull(who, "ComponentName is null"); 6315 synchronized (this) { 6316 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6317 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6318 if (admin.disableBluetoothContactSharing != disabled) { 6319 admin.disableBluetoothContactSharing = disabled; 6320 saveSettingsLocked(UserHandle.getCallingUserId()); 6321 } 6322 } 6323 } 6324 6325 @Override 6326 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 6327 if (!mHasFeature) { 6328 return false; 6329 } 6330 Preconditions.checkNotNull(who, "ComponentName is null"); 6331 synchronized (this) { 6332 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6333 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6334 return admin.disableBluetoothContactSharing; 6335 } 6336 } 6337 6338 @Override 6339 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 6340 // TODO: Should there be a check to make sure this relationship is 6341 // within a profile group? 6342 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 6343 synchronized (this) { 6344 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 6345 return (admin != null) ? admin.disableBluetoothContactSharing : false; 6346 } 6347 } 6348 6349 /** 6350 * Sets which packages may enter lock task mode. 6351 * 6352 * This function can only be called by the device owner. 6353 * @param packages The list of packages allowed to enter lock task mode. 6354 */ 6355 @Override 6356 public void setLockTaskPackages(ComponentName who, String[] packages) 6357 throws SecurityException { 6358 Preconditions.checkNotNull(who, "ComponentName is null"); 6359 synchronized (this) { 6360 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6361 6362 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6363 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 6364 } 6365 } 6366 6367 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 6368 DevicePolicyData policy = getUserData(userHandle); 6369 policy.mLockTaskPackages = packages; 6370 6371 // Store the settings persistently. 6372 saveSettingsLocked(userHandle); 6373 updateLockTaskPackagesLocked(packages, userHandle); 6374 } 6375 6376 /** 6377 * This function returns the list of components allowed to start the task lock mode. 6378 */ 6379 @Override 6380 public String[] getLockTaskPackages(ComponentName who) { 6381 Preconditions.checkNotNull(who, "ComponentName is null"); 6382 synchronized (this) { 6383 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6384 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 6385 final List<String> packages = getLockTaskPackagesLocked(userHandle); 6386 return packages.toArray(new String[packages.size()]); 6387 } 6388 } 6389 6390 private List<String> getLockTaskPackagesLocked(int userHandle) { 6391 final DevicePolicyData policy = getUserData(userHandle); 6392 return policy.mLockTaskPackages; 6393 } 6394 6395 /** 6396 * This function lets the caller know whether the given package is allowed to start the 6397 * lock task mode. 6398 * @param pkg The package to check 6399 */ 6400 @Override 6401 public boolean isLockTaskPermitted(String pkg) { 6402 // Get current user's devicepolicy 6403 int uid = mInjector.binderGetCallingUid(); 6404 int userHandle = UserHandle.getUserId(uid); 6405 DevicePolicyData policy = getUserData(userHandle); 6406 synchronized (this) { 6407 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 6408 String lockTaskPackage = policy.mLockTaskPackages.get(i); 6409 6410 // If the given package equals one of the packages stored our list, 6411 // we allow this package to start lock task mode. 6412 if (lockTaskPackage.equals(pkg)) { 6413 return true; 6414 } 6415 } 6416 } 6417 return false; 6418 } 6419 6420 @Override 6421 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 6422 if (!UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID)) { 6423 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 6424 } 6425 synchronized (this) { 6426 final DevicePolicyData policy = getUserData(userHandle); 6427 Bundle adminExtras = new Bundle(); 6428 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 6429 for (ActiveAdmin admin : policy.mAdminList) { 6430 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 6431 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 6432 if (ownsDevice || ownsProfile) { 6433 if (isEnabled) { 6434 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 6435 adminExtras, null); 6436 } else { 6437 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 6438 } 6439 } 6440 } 6441 } 6442 } 6443 6444 @Override 6445 public void setGlobalSetting(ComponentName who, String setting, String value) { 6446 Preconditions.checkNotNull(who, "ComponentName is null"); 6447 6448 synchronized (this) { 6449 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6450 6451 // Some settings are no supported any more. However we do not want to throw a 6452 // SecurityException to avoid breaking apps. 6453 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 6454 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 6455 return; 6456 } 6457 6458 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 6459 throw new SecurityException(String.format( 6460 "Permission denial: device owners cannot update %1$s", setting)); 6461 } 6462 6463 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 6464 // ignore if it contradicts an existing policy 6465 long timeMs = getMaximumTimeToLock(who, UserHandle.getCallingUserId()); 6466 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 6467 return; 6468 } 6469 } 6470 6471 long id = mInjector.binderClearCallingIdentity(); 6472 try { 6473 mInjector.settingsGlobalPutString(setting, value); 6474 } finally { 6475 mInjector.binderRestoreCallingIdentity(id); 6476 } 6477 } 6478 } 6479 6480 @Override 6481 public void setSecureSetting(ComponentName who, String setting, String value) { 6482 Preconditions.checkNotNull(who, "ComponentName is null"); 6483 int callingUserId = mInjector.userHandleGetCallingUserId(); 6484 6485 synchronized (this) { 6486 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6487 6488 if (isDeviceOwner(who, mInjector.userHandleGetCallingUserId())) { 6489 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 6490 throw new SecurityException(String.format( 6491 "Permission denial: Device owners cannot update %1$s", setting)); 6492 } 6493 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 6494 throw new SecurityException(String.format( 6495 "Permission denial: Profile owners cannot update %1$s", setting)); 6496 } 6497 6498 long id = mInjector.binderClearCallingIdentity(); 6499 try { 6500 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 6501 } finally { 6502 mInjector.binderRestoreCallingIdentity(id); 6503 } 6504 } 6505 } 6506 6507 @Override 6508 public void setMasterVolumeMuted(ComponentName who, boolean on) { 6509 Preconditions.checkNotNull(who, "ComponentName is null"); 6510 synchronized (this) { 6511 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6512 int userId = UserHandle.getCallingUserId(); 6513 long identity = mInjector.binderClearCallingIdentity(); 6514 try { 6515 IAudioService iAudioService = IAudioService.Stub.asInterface( 6516 ServiceManager.getService(Context.AUDIO_SERVICE)); 6517 iAudioService.setMasterMute(on, 0, mContext.getPackageName(), userId); 6518 } catch (RemoteException re) { 6519 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 6520 } finally { 6521 mInjector.binderRestoreCallingIdentity(identity); 6522 } 6523 } 6524 } 6525 6526 @Override 6527 public boolean isMasterVolumeMuted(ComponentName who) { 6528 Preconditions.checkNotNull(who, "ComponentName is null"); 6529 synchronized (this) { 6530 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6531 6532 AudioManager audioManager = 6533 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 6534 return audioManager.isMasterMute(); 6535 } 6536 } 6537 6538 @Override 6539 public void setUserIcon(ComponentName who, Bitmap icon) { 6540 synchronized (this) { 6541 Preconditions.checkNotNull(who, "ComponentName is null"); 6542 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6543 6544 int userId = UserHandle.getCallingUserId(); 6545 long id = mInjector.binderClearCallingIdentity(); 6546 try { 6547 mUserManager.setUserIcon(userId, icon); 6548 } finally { 6549 mInjector.binderRestoreCallingIdentity(id); 6550 } 6551 } 6552 } 6553 6554 @Override 6555 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 6556 Preconditions.checkNotNull(who, "ComponentName is null"); 6557 synchronized (this) { 6558 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6559 } 6560 final int userId = UserHandle.getCallingUserId(); 6561 LockPatternUtils utils = new LockPatternUtils(mContext); 6562 6563 long ident = mInjector.binderClearCallingIdentity(); 6564 try { 6565 // disallow disabling the keyguard if a password is currently set 6566 if (disabled && utils.isSecure(userId)) { 6567 return false; 6568 } 6569 utils.setLockScreenDisabled(disabled, userId); 6570 } finally { 6571 mInjector.binderRestoreCallingIdentity(ident); 6572 } 6573 return true; 6574 } 6575 6576 @Override 6577 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 6578 int userId = UserHandle.getCallingUserId(); 6579 synchronized (this) { 6580 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6581 DevicePolicyData policy = getUserData(userId); 6582 if (policy.mStatusBarDisabled != disabled) { 6583 if (!setStatusBarDisabledInternal(disabled, userId)) { 6584 return false; 6585 } 6586 policy.mStatusBarDisabled = disabled; 6587 saveSettingsLocked(userId); 6588 } 6589 } 6590 return true; 6591 } 6592 6593 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 6594 long ident = mInjector.binderClearCallingIdentity(); 6595 try { 6596 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 6597 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 6598 if (statusBarService != null) { 6599 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 6600 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 6601 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 6602 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 6603 return true; 6604 } 6605 } catch (RemoteException e) { 6606 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 6607 } finally { 6608 mInjector.binderRestoreCallingIdentity(ident); 6609 } 6610 return false; 6611 } 6612 6613 /** 6614 * We need to update the internal state of whether a user has completed setup once. After 6615 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 6616 * as we don't trust any apps that might try to reset it. 6617 * <p> 6618 * Unfortunately, we don't know which user's setup state was changed, so we write all of 6619 * them. 6620 */ 6621 void updateUserSetupComplete() { 6622 List<UserInfo> users = mUserManager.getUsers(true); 6623 final int N = users.size(); 6624 for (int i = 0; i < N; i++) { 6625 int userHandle = users.get(i).id; 6626 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 6627 userHandle) != 0) { 6628 DevicePolicyData policy = getUserData(userHandle); 6629 if (!policy.mUserSetupComplete) { 6630 policy.mUserSetupComplete = true; 6631 synchronized (this) { 6632 saveSettingsLocked(userHandle); 6633 } 6634 } 6635 } 6636 } 6637 } 6638 6639 private class SetupContentObserver extends ContentObserver { 6640 6641 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 6642 Settings.Secure.USER_SETUP_COMPLETE); 6643 6644 public SetupContentObserver(Handler handler) { 6645 super(handler); 6646 } 6647 6648 void register(ContentResolver resolver) { 6649 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 6650 } 6651 6652 @Override 6653 public void onChange(boolean selfChange, Uri uri) { 6654 if (mUserSetupComplete.equals(uri)) { 6655 updateUserSetupComplete(); 6656 } 6657 } 6658 } 6659 6660 @VisibleForTesting 6661 final class LocalService extends DevicePolicyManagerInternal { 6662 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 6663 6664 @Override 6665 public List<String> getCrossProfileWidgetProviders(int profileId) { 6666 synchronized (DevicePolicyManagerService.this) { 6667 if (mOwners == null) { 6668 return Collections.emptyList(); 6669 } 6670 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 6671 if (ownerComponent == null) { 6672 return Collections.emptyList(); 6673 } 6674 6675 DevicePolicyData policy = getUserDataUnchecked(profileId); 6676 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 6677 6678 if (admin == null || admin.crossProfileWidgetProviders == null 6679 || admin.crossProfileWidgetProviders.isEmpty()) { 6680 return Collections.emptyList(); 6681 } 6682 6683 return admin.crossProfileWidgetProviders; 6684 } 6685 } 6686 6687 @Override 6688 public void addOnCrossProfileWidgetProvidersChangeListener( 6689 OnCrossProfileWidgetProvidersChangeListener listener) { 6690 synchronized (DevicePolicyManagerService.this) { 6691 if (mWidgetProviderListeners == null) { 6692 mWidgetProviderListeners = new ArrayList<>(); 6693 } 6694 if (!mWidgetProviderListeners.contains(listener)) { 6695 mWidgetProviderListeners.add(listener); 6696 } 6697 } 6698 } 6699 6700 @Override 6701 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 6702 final int userId = UserHandle.getUserId(uid); 6703 synchronized(DevicePolicyManagerService.this) { 6704 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 6705 } 6706 } 6707 6708 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 6709 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 6710 synchronized (DevicePolicyManagerService.this) { 6711 listeners = new ArrayList<>(mWidgetProviderListeners); 6712 } 6713 final int listenerCount = listeners.size(); 6714 for (int i = 0; i < listenerCount; i++) { 6715 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 6716 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 6717 } 6718 } 6719 } 6720 6721 /** 6722 * Returns true if specified admin is allowed to limit passwords and has a 6723 * {@code passwordQuality} of at least {@code minPasswordQuality} 6724 */ 6725 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 6726 if (admin.passwordQuality < minPasswordQuality) { 6727 return false; 6728 } 6729 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 6730 } 6731 6732 @Override 6733 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 6734 if (policy != null && !policy.isValid()) { 6735 throw new IllegalArgumentException("Invalid system update policy."); 6736 } 6737 synchronized (this) { 6738 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6739 if (policy == null) { 6740 mOwners.clearSystemUpdatePolicy(); 6741 } else { 6742 mOwners.setSystemUpdatePolicy(policy); 6743 } 6744 mOwners.writeDeviceOwner(); 6745 } 6746 mContext.sendBroadcastAsUser( 6747 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 6748 UserHandle.SYSTEM); 6749 } 6750 6751 @Override 6752 public SystemUpdatePolicy getSystemUpdatePolicy() { 6753 synchronized (this) { 6754 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 6755 if (policy != null && !policy.isValid()) { 6756 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 6757 return null; 6758 } 6759 return policy; 6760 } 6761 } 6762 6763 /** 6764 * Checks if the caller of the method is the device owner app. 6765 * 6766 * @param callerUid UID of the caller. 6767 * @return true if the caller is the device owner app 6768 */ 6769 @VisibleForTesting 6770 boolean isCallerDeviceOwner(int callerUid) { 6771 synchronized (this) { 6772 if (!mOwners.hasDeviceOwner()) { 6773 return false; 6774 } 6775 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 6776 return false; 6777 } 6778 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 6779 .getPackageName(); 6780 final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 6781 6782 for (String pkg : pkgs) { 6783 if (deviceOwnerPackageName.equals(pkg)) { 6784 return true; 6785 } 6786 } 6787 } 6788 6789 return false; 6790 } 6791 6792 @Override 6793 public void notifyPendingSystemUpdate(long updateReceivedTime) { 6794 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 6795 "Only the system update service can broadcast update information"); 6796 6797 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 6798 Slog.w(LOG_TAG, "Only the system update service in the system user " + 6799 "can broadcast update information."); 6800 return; 6801 } 6802 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 6803 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 6804 updateReceivedTime); 6805 6806 synchronized (this) { 6807 final String deviceOwnerPackage = 6808 mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerComponent().getPackageName() 6809 : null; 6810 if (deviceOwnerPackage == null) { 6811 return; 6812 } 6813 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 6814 6815 ActivityInfo[] receivers = null; 6816 try { 6817 receivers = mContext.getPackageManager().getPackageInfo( 6818 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 6819 } catch (NameNotFoundException e) { 6820 Log.e(LOG_TAG, "Cannot find device owner package", e); 6821 } 6822 if (receivers != null) { 6823 long ident = mInjector.binderClearCallingIdentity(); 6824 try { 6825 for (int i = 0; i < receivers.length; i++) { 6826 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 6827 intent.setComponent(new ComponentName(deviceOwnerPackage, 6828 receivers[i].name)); 6829 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 6830 } 6831 } 6832 } finally { 6833 mInjector.binderRestoreCallingIdentity(ident); 6834 } 6835 } 6836 } 6837 } 6838 6839 @Override 6840 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 6841 int userId = UserHandle.getCallingUserId(); 6842 synchronized (this) { 6843 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6844 DevicePolicyData userPolicy = getUserData(userId); 6845 if (userPolicy.mPermissionPolicy != policy) { 6846 userPolicy.mPermissionPolicy = policy; 6847 saveSettingsLocked(userId); 6848 } 6849 } 6850 } 6851 6852 @Override 6853 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 6854 int userId = UserHandle.getCallingUserId(); 6855 synchronized (this) { 6856 DevicePolicyData userPolicy = getUserData(userId); 6857 return userPolicy.mPermissionPolicy; 6858 } 6859 } 6860 6861 @Override 6862 public boolean setPermissionGrantState(ComponentName admin, String packageName, 6863 String permission, int grantState) throws RemoteException { 6864 UserHandle user = mInjector.binderGetCallingUserHandle(); 6865 synchronized (this) { 6866 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6867 long ident = mInjector.binderClearCallingIdentity(); 6868 try { 6869 if (getTargetSdk(packageName, user.getIdentifier()) 6870 < android.os.Build.VERSION_CODES.M) { 6871 return false; 6872 } 6873 final PackageManager packageManager = mContext.getPackageManager(); 6874 switch (grantState) { 6875 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 6876 packageManager.grantRuntimePermission(packageName, permission, user); 6877 packageManager.updatePermissionFlags(permission, packageName, 6878 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6879 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6880 } break; 6881 6882 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 6883 packageManager.revokeRuntimePermission(packageName, 6884 permission, user); 6885 packageManager.updatePermissionFlags(permission, packageName, 6886 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6887 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 6888 } break; 6889 6890 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 6891 packageManager.updatePermissionFlags(permission, packageName, 6892 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 6893 } break; 6894 } 6895 return true; 6896 } catch (SecurityException se) { 6897 return false; 6898 } finally { 6899 mInjector.binderRestoreCallingIdentity(ident); 6900 } 6901 } 6902 } 6903 6904 @Override 6905 public int getPermissionGrantState(ComponentName admin, String packageName, 6906 String permission) throws RemoteException { 6907 PackageManager packageManager = mContext.getPackageManager(); 6908 6909 UserHandle user = mInjector.binderGetCallingUserHandle(); 6910 synchronized (this) { 6911 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6912 long ident = mInjector.binderClearCallingIdentity(); 6913 try { 6914 int granted = mIPackageManager.checkPermission(permission, 6915 packageName, user.getIdentifier()); 6916 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 6917 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 6918 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 6919 // Not controlled by policy 6920 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 6921 } else { 6922 // Policy controlled so return result based on permission grant state 6923 return granted == PackageManager.PERMISSION_GRANTED 6924 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 6925 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 6926 } 6927 } finally { 6928 mInjector.binderRestoreCallingIdentity(ident); 6929 } 6930 } 6931 } 6932 6933 boolean isPackageInstalledForUser(String packageName, int userHandle) { 6934 try { 6935 PackageInfo pi = mIPackageManager.getPackageInfo(packageName, 0, userHandle); 6936 return (pi != null) && (pi.applicationInfo.flags != 0); 6937 } catch (RemoteException re) { 6938 throw new RuntimeException("Package manager has died", re); 6939 } 6940 } 6941 6942 @Override 6943 public boolean isProvisioningAllowed(String action) { 6944 final int callingUserId = mInjector.userHandleGetCallingUserId(); 6945 if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) { 6946 if (!hasFeatureManagedUsers()) { 6947 return false; 6948 } 6949 synchronized (this) { 6950 if (mOwners.hasDeviceOwner()) { 6951 if (!mInjector.userManagerIsSplitSystemUser()) { 6952 // Only split-system-user systems support managed-profiles in combination with 6953 // device-owner. 6954 return false; 6955 } 6956 if (mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM) { 6957 // Only system device-owner supports managed-profiles. Non-system device-owner 6958 // doesn't. 6959 return false; 6960 } 6961 if (callingUserId == UserHandle.USER_SYSTEM) { 6962 // Managed-profiles cannot be setup on the system user, only regular users. 6963 return false; 6964 } 6965 } 6966 } 6967 if (getProfileOwner(callingUserId) != null) { 6968 // Managed user cannot have a managed profile. 6969 return false; 6970 } 6971 final long ident = mInjector.binderClearCallingIdentity(); 6972 try { 6973 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, true)) { 6974 return false; 6975 } 6976 } finally { 6977 mInjector.binderRestoreCallingIdentity(ident); 6978 } 6979 return true; 6980 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) { 6981 return isDeviceOwnerProvisioningAllowed(callingUserId); 6982 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) { 6983 if (!hasFeatureManagedUsers()) { 6984 return false; 6985 } 6986 if (!mInjector.userManagerIsSplitSystemUser()) { 6987 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 6988 return false; 6989 } 6990 if (callingUserId == UserHandle.USER_SYSTEM) { 6991 // System user cannot be a managed user. 6992 return false; 6993 } 6994 if (hasUserSetupCompleted(callingUserId)) { 6995 return false; 6996 } 6997 return true; 6998 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) { 6999 if (!mInjector.userManagerIsSplitSystemUser()) { 7000 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 7001 return false; 7002 } 7003 return isDeviceOwnerProvisioningAllowed(callingUserId); 7004 } 7005 throw new IllegalArgumentException("Unknown provisioning action " + action); 7006 } 7007 7008 private boolean isDeviceOwnerProvisioningAllowed(int callingUserId) { 7009 synchronized (this) { 7010 if (mOwners.hasDeviceOwner()) { 7011 return false; 7012 } 7013 } 7014 if (getProfileOwner(callingUserId) != null) { 7015 return false; 7016 } 7017 if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0) { 7018 return false; 7019 } 7020 if (callingUserId != UserHandle.USER_SYSTEM) { 7021 // Device owner provisioning can only be initiated from system user. 7022 return false; 7023 } 7024 return true; 7025 } 7026 7027 private boolean hasFeatureManagedUsers() { 7028 try { 7029 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS); 7030 } catch (RemoteException e) { 7031 return false; 7032 } 7033 } 7034 7035 @Override 7036 public String getWifiMacAddress() { 7037 // Make sure caller has DO. 7038 synchronized (this) { 7039 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7040 } 7041 7042 final long ident = mInjector.binderClearCallingIdentity(); 7043 try { 7044 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 7045 if (wifiInfo == null) { 7046 return null; 7047 } 7048 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 7049 } finally { 7050 mInjector.binderRestoreCallingIdentity(ident); 7051 } 7052 } 7053 7054 /** 7055 * Returns the target sdk version number that the given packageName was built for 7056 * in the given user. 7057 */ 7058 private int getTargetSdk(String packageName, int userId) throws RemoteException { 7059 final ApplicationInfo ai = mIPackageManager 7060 .getApplicationInfo(packageName, 0, userId); 7061 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 7062 return targetSdkVersion; 7063 } 7064 7065 @Override 7066 public boolean isManagedProfile(ComponentName admin) { 7067 synchronized (this) { 7068 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7069 } 7070 final int callingUserId = mInjector.userHandleGetCallingUserId(); 7071 final UserInfo user; 7072 long ident = mInjector.binderClearCallingIdentity(); 7073 try { 7074 user = mUserManager.getUserInfo(callingUserId); 7075 } finally { 7076 mInjector.binderRestoreCallingIdentity(ident); 7077 } 7078 return user != null && user.isManagedProfile(); 7079 } 7080 7081 @Override 7082 public boolean isSystemOnlyUser(ComponentName admin) { 7083 synchronized (this) { 7084 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7085 } 7086 final int callingUserId = mInjector.userHandleGetCallingUserId(); 7087 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 7088 } 7089 7090 @Override 7091 public void reboot(ComponentName admin) { 7092 Preconditions.checkNotNull(admin); 7093 // Make sure caller has DO. 7094 synchronized (this) { 7095 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7096 } 7097 long ident = mInjector.binderClearCallingIdentity(); 7098 try { 7099 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 7100 } finally { 7101 mInjector.binderRestoreCallingIdentity(ident); 7102 } 7103 } 7104 7105} 7106