DevicePolicyManagerService.java revision 16c9c249d5f06014442aa5c78254b702f6a034c5
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; 24 25import android.accessibilityservice.AccessibilityServiceInfo; 26import android.accounts.AccountManager; 27import android.app.Activity; 28import android.app.ActivityManagerNative; 29import android.app.AlarmManager; 30import android.app.AppGlobals; 31import android.app.IActivityManager; 32import android.app.Notification; 33import android.app.NotificationManager; 34import android.app.PendingIntent; 35import android.app.admin.DeviceAdminInfo; 36import android.app.admin.DeviceAdminReceiver; 37import android.app.admin.DevicePolicyManager; 38import android.app.admin.DevicePolicyManagerInternal; 39import android.app.admin.IDevicePolicyManager; 40import android.app.backup.IBackupManager; 41import android.content.BroadcastReceiver; 42import android.content.ComponentName; 43import android.content.ContentResolver; 44import android.content.Context; 45import android.content.Intent; 46import android.content.IntentFilter; 47import android.content.pm.ApplicationInfo; 48import android.content.pm.IPackageManager; 49import android.content.pm.PackageManager; 50import android.content.pm.PackageManager.NameNotFoundException; 51import android.content.pm.ResolveInfo; 52import android.content.pm.ServiceInfo; 53import android.content.pm.UserInfo; 54import android.database.ContentObserver; 55import android.graphics.Bitmap; 56import android.hardware.usb.UsbManager; 57import android.media.AudioManager; 58import android.media.IAudioService; 59import android.net.ConnectivityManager; 60import android.net.ProxyInfo; 61import android.net.Uri; 62import android.os.AsyncTask; 63import android.os.Binder; 64import android.os.Bundle; 65import android.os.Environment; 66import android.os.FileUtils; 67import android.os.Handler; 68import android.os.IBinder; 69import android.os.PersistableBundle; 70import android.os.PowerManager; 71import android.os.PowerManagerInternal; 72import android.os.Process; 73import android.os.RecoverySystem; 74import android.os.RemoteCallback; 75import android.os.RemoteException; 76import android.os.ServiceManager; 77import android.os.SystemClock; 78import android.os.SystemProperties; 79import android.os.UserHandle; 80import android.os.UserManager; 81import android.provider.ContactsContract.QuickContact; 82import android.provider.ContactsInternal; 83import android.provider.Settings; 84import android.security.Credentials; 85import android.security.IKeyChainAliasCallback; 86import android.security.IKeyChainService; 87import android.security.KeyChain; 88import android.security.KeyChain.KeyChainConnection; 89import android.text.TextUtils; 90import android.service.persistentdata.PersistentDataBlockManager; 91import android.util.Log; 92import android.util.PrintWriterPrinter; 93import android.util.Printer; 94import android.util.Slog; 95import android.util.SparseArray; 96import android.util.Xml; 97import android.view.accessibility.AccessibilityManager; 98import android.view.accessibility.IAccessibilityManager; 99import android.view.inputmethod.InputMethodInfo; 100import android.view.inputmethod.InputMethodManager; 101import android.view.IWindowManager; 102 103import com.android.internal.R; 104import com.android.internal.os.storage.ExternalStorageFormatter; 105import com.android.internal.util.FastXmlSerializer; 106import com.android.internal.util.JournaledFile; 107import com.android.internal.util.Preconditions; 108import com.android.internal.util.XmlUtils; 109import com.android.internal.widget.LockPatternUtils; 110import com.android.server.LocalServices; 111import com.android.server.SystemService; 112import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 113 114import org.xmlpull.v1.XmlPullParser; 115 116import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 117import static org.xmlpull.v1.XmlPullParser.END_TAG; 118import static org.xmlpull.v1.XmlPullParser.TEXT; 119 120import org.xmlpull.v1.XmlPullParserException; 121import org.xmlpull.v1.XmlSerializer; 122 123import java.io.ByteArrayInputStream; 124import java.io.File; 125import java.io.FileDescriptor; 126import java.io.FileInputStream; 127import java.io.FileNotFoundException; 128import java.io.FileOutputStream; 129import java.io.IOException; 130import java.io.PrintWriter; 131import java.security.cert.CertificateException; 132import java.security.cert.CertificateFactory; 133import java.security.cert.X509Certificate; 134import java.text.DateFormat; 135import java.util.ArrayList; 136import java.util.Collections; 137import java.util.Date; 138import java.util.HashMap; 139import java.util.HashSet; 140import java.util.List; 141import java.util.Map.Entry; 142import java.util.Set; 143 144/** 145 * Implementation of the device policy APIs. 146 */ 147public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 148 149 private static final String LOG_TAG = "DevicePolicyManagerService"; 150 151 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 152 153 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 154 155 private static final String LOCK_TASK_COMPONENTS_XML = "lock-task-component"; 156 157 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 158 159 private static final long MS_PER_DAY = 86400 * 1000; 160 161 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 162 163 protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 164 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 165 166 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 167 168 private static final boolean DBG = false; 169 170 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 171 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 172 173 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 174 175 private static final Set<String> DEVICE_OWNER_USER_RESTRICTIONS; 176 static { 177 DEVICE_OWNER_USER_RESTRICTIONS = new HashSet(); 178 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_USB_FILE_TRANSFER); 179 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_TETHERING); 180 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_FACTORY_RESET); 181 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADD_USER); 182 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_CELL_BROADCASTS); 183 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS); 184 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_MOUNT_PHYSICAL_MEDIA); 185 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_UNMUTE_MICROPHONE); 186 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADJUST_VOLUME); 187 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SMS); 188 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SAFE_BOOT); 189 } 190 191 // The following user restrictions cannot be changed by any active admin, including device 192 // owner and profile owner. 193 private static final Set<String> IMMUTABLE_USER_RESTRICTIONS; 194 static { 195 IMMUTABLE_USER_RESTRICTIONS = new HashSet(); 196 IMMUTABLE_USER_RESTRICTIONS.add(UserManager.DISALLOW_WALLPAPER); 197 } 198 199 private static final Set<String> SECURE_SETTINGS_WHITELIST; 200 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 201 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 202 static { 203 SECURE_SETTINGS_WHITELIST = new HashSet(); 204 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 205 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 206 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 207 208 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new HashSet(); 209 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 210 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 211 212 GLOBAL_SETTINGS_WHITELIST = new HashSet(); 213 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 214 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 215 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 216 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 217 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 218 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.MODE_RINGER); 219 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.NETWORK_PREFERENCE); 220 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 221 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 222 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 223 } 224 225 final Context mContext; 226 final UserManager mUserManager; 227 final PowerManager.WakeLock mWakeLock; 228 229 final LocalService mLocalService; 230 231 final PowerManager mPowerManager; 232 final PowerManagerInternal mPowerManagerInternal; 233 234 IWindowManager mIWindowManager; 235 NotificationManager mNotificationManager; 236 237 // Stores and loads state on device and profile owners. 238 private DeviceOwner mDeviceOwner; 239 240 /** 241 * Whether or not device admin feature is supported. If it isn't return defaults for all 242 * public methods. 243 */ 244 private boolean mHasFeature; 245 246 public static final class Lifecycle extends SystemService { 247 private DevicePolicyManagerService mService; 248 249 public Lifecycle(Context context) { 250 super(context); 251 mService = new DevicePolicyManagerService(context); 252 } 253 254 @Override 255 public void onStart() { 256 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 257 } 258 259 @Override 260 public void onBootPhase(int phase) { 261 if (phase == PHASE_LOCK_SETTINGS_READY) { 262 mService.systemReady(); 263 } 264 } 265 } 266 267 public static class DevicePolicyData { 268 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 269 int mActivePasswordLength = 0; 270 int mActivePasswordUpperCase = 0; 271 int mActivePasswordLowerCase = 0; 272 int mActivePasswordLetters = 0; 273 int mActivePasswordNumeric = 0; 274 int mActivePasswordSymbols = 0; 275 int mActivePasswordNonLetter = 0; 276 int mFailedPasswordAttempts = 0; 277 278 int mUserHandle; 279 int mPasswordOwner = -1; 280 long mLastMaximumTimeToLock = -1; 281 boolean mUserSetupComplete = false; 282 283 final HashMap<ComponentName, ActiveAdmin> mAdminMap 284 = new HashMap<ComponentName, ActiveAdmin>(); 285 final ArrayList<ActiveAdmin> mAdminList 286 = new ArrayList<ActiveAdmin>(); 287 final ArrayList<ComponentName> mRemovingAdmins 288 = new ArrayList<ComponentName>(); 289 290 // This is the list of component allowed to start lock task mode. 291 final List<String> mLockTaskPackages = new ArrayList<String>(); 292 293 ComponentName mRestrictionsProvider; 294 295 String mDelegatedCertInstallerPackage; 296 297 public DevicePolicyData(int userHandle) { 298 mUserHandle = userHandle; 299 } 300 } 301 302 final SparseArray<DevicePolicyData> mUserData = new SparseArray<DevicePolicyData>(); 303 304 Handler mHandler = new Handler(); 305 306 BroadcastReceiver mReceiver = new BroadcastReceiver() { 307 @Override 308 public void onReceive(Context context, Intent intent) { 309 final String action = intent.getAction(); 310 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 311 getSendingUserId()); 312 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 313 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 314 if (DBG) Slog.v(LOG_TAG, "Sending password expiration notifications for action " 315 + action + " for user " + userHandle); 316 mHandler.post(new Runnable() { 317 public void run() { 318 handlePasswordExpirationNotification(userHandle); 319 } 320 }); 321 } 322 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 323 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 324 new MonitoringCertNotificationTask().execute(intent); 325 } 326 if (Intent.ACTION_USER_REMOVED.equals(action)) { 327 removeUserData(userHandle); 328 } else if (Intent.ACTION_USER_STARTED.equals(action) 329 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 330 331 if (Intent.ACTION_USER_STARTED.equals(action)) { 332 // Reset the policy data 333 synchronized (DevicePolicyManagerService.this) { 334 mUserData.remove(userHandle); 335 } 336 } 337 handlePackagesChanged(null /* check all admins */, userHandle); 338 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 339 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 340 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 341 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 342 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 343 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 344 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 345 } 346 } 347 }; 348 349 static class ActiveAdmin { 350 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 351 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 352 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 353 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 354 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 355 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 356 private static final String TAG_ACCOUNT_TYPE = "account-type"; 357 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 358 = "permitted-accessiblity-services"; 359 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 360 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 361 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 362 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 363 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 364 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 365 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 366 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 367 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 368 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 369 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 370 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 371 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 372 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 373 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 374 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 375 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 376 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 377 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 378 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 379 private static final String ATTR_VALUE = "value"; 380 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 381 private static final String TAG_POLICIES = "policies"; 382 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 383 "cross-profile-widget-providers"; 384 private static final String TAG_PROVIDER = "provider"; 385 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 386 387 final DeviceAdminInfo info; 388 389 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 390 391 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 392 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 393 394 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 395 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 396 397 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 398 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 399 400 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 401 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 402 403 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 404 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 405 406 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 407 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 408 409 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 410 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 411 412 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 413 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 414 415 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 416 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 417 418 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 419 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 420 421 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 422 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 423 424 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 425 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 426 427 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 428 429 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 430 431 boolean encryptionRequested = false; 432 boolean disableCamera = false; 433 boolean disableCallerId = false; 434 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 435 boolean requireAutoTime = false; // Can only be set by a device owner. 436 437 static class TrustAgentInfo { 438 public PersistableBundle options; 439 TrustAgentInfo(PersistableBundle bundle) { 440 options = bundle; 441 } 442 } 443 444 Set<String> accountTypesWithManagementDisabled = new HashSet<String>(); 445 446 // The list of permitted accessibility services package namesas set by a profile 447 // or device owner. Null means all accessibility services are allowed, empty means 448 // none except system services are allowed. 449 List<String> permittedAccessiblityServices; 450 451 // The list of permitted input methods package names as set by a profile or device owner. 452 // Null means all input methods are allowed, empty means none except system imes are 453 // allowed. 454 List<String> permittedInputMethods; 455 456 // TODO: review implementation decisions with frameworks team 457 boolean specifiesGlobalProxy = false; 458 String globalProxySpec = null; 459 String globalProxyExclusionList = null; 460 461 HashMap<String, TrustAgentInfo> trustAgentInfos = new HashMap<String, TrustAgentInfo>(); 462 463 List<String> crossProfileWidgetProviders; 464 465 ActiveAdmin(DeviceAdminInfo _info) { 466 info = _info; 467 } 468 469 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 470 471 public UserHandle getUserHandle() { 472 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 473 } 474 475 void writeToXml(XmlSerializer out) 476 throws IllegalArgumentException, IllegalStateException, IOException { 477 out.startTag(null, TAG_POLICIES); 478 info.writePoliciesToXml(out); 479 out.endTag(null, TAG_POLICIES); 480 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 481 out.startTag(null, TAG_PASSWORD_QUALITY); 482 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 483 out.endTag(null, TAG_PASSWORD_QUALITY); 484 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 485 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 486 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 487 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 488 } 489 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 490 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 491 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 492 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 493 } 494 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 495 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 496 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 497 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 498 } 499 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 500 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 501 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 502 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 503 } 504 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 505 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 506 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 507 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 508 } 509 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 510 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 511 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 512 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 513 } 514 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 515 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 516 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 517 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 518 } 519 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 520 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 521 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 522 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 523 } 524 } 525 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 526 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 527 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 528 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 529 } 530 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 531 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 532 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 533 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 534 } 535 if (specifiesGlobalProxy) { 536 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 537 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 538 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 539 if (globalProxySpec != null) { 540 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 541 out.attribute(null, ATTR_VALUE, globalProxySpec); 542 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 543 } 544 if (globalProxyExclusionList != null) { 545 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 546 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 547 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 548 } 549 } 550 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 551 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 552 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 553 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 554 } 555 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 556 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 557 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 558 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 559 } 560 if (encryptionRequested) { 561 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 562 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 563 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 564 } 565 if (disableCamera) { 566 out.startTag(null, TAG_DISABLE_CAMERA); 567 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 568 out.endTag(null, TAG_DISABLE_CAMERA); 569 } 570 if (disableCallerId) { 571 out.startTag(null, TAG_DISABLE_CALLER_ID); 572 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 573 out.endTag(null, TAG_DISABLE_CALLER_ID); 574 } 575 if (disableScreenCapture) { 576 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 577 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 578 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 579 } 580 if (requireAutoTime) { 581 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 582 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 583 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 584 } 585 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 586 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 587 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 588 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 589 } 590 if (!accountTypesWithManagementDisabled.isEmpty()) { 591 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 592 for (String ac : accountTypesWithManagementDisabled) { 593 out.startTag(null, TAG_ACCOUNT_TYPE); 594 out.attribute(null, ATTR_VALUE, ac); 595 out.endTag(null, TAG_ACCOUNT_TYPE); 596 } 597 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 598 } 599 if (!trustAgentInfos.isEmpty()) { 600 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 601 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 602 for (Entry<String, TrustAgentInfo> entry : set) { 603 TrustAgentInfo trustAgentInfo = entry.getValue(); 604 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 605 out.attribute(null, ATTR_VALUE, entry.getKey()); 606 if (trustAgentInfo.options != null) { 607 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 608 try { 609 trustAgentInfo.options.saveToXml(out); 610 } catch (XmlPullParserException e) { 611 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 612 } 613 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 614 } 615 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 616 } 617 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 618 } 619 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 620 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 621 final int providerCount = crossProfileWidgetProviders.size(); 622 for (int i = 0; i < providerCount; i++) { 623 String provider = crossProfileWidgetProviders.get(i); 624 out.startTag(null, TAG_PROVIDER); 625 out.attribute(null, ATTR_VALUE, provider); 626 out.endTag(null, TAG_PROVIDER); 627 } 628 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 629 } 630 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 631 permittedAccessiblityServices); 632 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 633 } 634 635 void writePackageListToXml(XmlSerializer out, String outerTag, 636 List<String> packageList) 637 throws IllegalArgumentException, IllegalStateException, IOException { 638 if (packageList == null) { 639 return; 640 } 641 642 out.startTag(null, outerTag); 643 for (String packageName : packageList) { 644 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 645 out.attribute(null, ATTR_VALUE, packageName); 646 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 647 } 648 out.endTag(null, outerTag); 649 } 650 651 void readFromXml(XmlPullParser parser) 652 throws XmlPullParserException, IOException { 653 int outerDepth = parser.getDepth(); 654 int type; 655 while ((type=parser.next()) != END_DOCUMENT 656 && (type != END_TAG || parser.getDepth() > outerDepth)) { 657 if (type == END_TAG || type == TEXT) { 658 continue; 659 } 660 String tag = parser.getName(); 661 if (TAG_POLICIES.equals(tag)) { 662 info.readPoliciesFromXml(parser); 663 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 664 passwordQuality = Integer.parseInt( 665 parser.getAttributeValue(null, ATTR_VALUE)); 666 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 667 minimumPasswordLength = Integer.parseInt( 668 parser.getAttributeValue(null, ATTR_VALUE)); 669 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 670 passwordHistoryLength = Integer.parseInt( 671 parser.getAttributeValue(null, ATTR_VALUE)); 672 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 673 minimumPasswordUpperCase = Integer.parseInt( 674 parser.getAttributeValue(null, ATTR_VALUE)); 675 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 676 minimumPasswordLowerCase = Integer.parseInt( 677 parser.getAttributeValue(null, ATTR_VALUE)); 678 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 679 minimumPasswordLetters = Integer.parseInt( 680 parser.getAttributeValue(null, ATTR_VALUE)); 681 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 682 minimumPasswordNumeric = Integer.parseInt( 683 parser.getAttributeValue(null, ATTR_VALUE)); 684 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 685 minimumPasswordSymbols = Integer.parseInt( 686 parser.getAttributeValue(null, ATTR_VALUE)); 687 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 688 minimumPasswordNonLetter = Integer.parseInt( 689 parser.getAttributeValue(null, ATTR_VALUE)); 690 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 691 maximumTimeToUnlock = Long.parseLong( 692 parser.getAttributeValue(null, ATTR_VALUE)); 693 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 694 maximumFailedPasswordsForWipe = Integer.parseInt( 695 parser.getAttributeValue(null, ATTR_VALUE)); 696 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 697 specifiesGlobalProxy = Boolean.parseBoolean( 698 parser.getAttributeValue(null, ATTR_VALUE)); 699 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 700 globalProxySpec = 701 parser.getAttributeValue(null, ATTR_VALUE); 702 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 703 globalProxyExclusionList = 704 parser.getAttributeValue(null, ATTR_VALUE); 705 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 706 passwordExpirationTimeout = Long.parseLong( 707 parser.getAttributeValue(null, ATTR_VALUE)); 708 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 709 passwordExpirationDate = Long.parseLong( 710 parser.getAttributeValue(null, ATTR_VALUE)); 711 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 712 encryptionRequested = Boolean.parseBoolean( 713 parser.getAttributeValue(null, ATTR_VALUE)); 714 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 715 disableCamera = Boolean.parseBoolean( 716 parser.getAttributeValue(null, ATTR_VALUE)); 717 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 718 disableCallerId = Boolean.parseBoolean( 719 parser.getAttributeValue(null, ATTR_VALUE)); 720 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 721 disableScreenCapture = Boolean.parseBoolean( 722 parser.getAttributeValue(null, ATTR_VALUE)); 723 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 724 requireAutoTime= Boolean.parseBoolean( 725 parser.getAttributeValue(null, ATTR_VALUE)); 726 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 727 disabledKeyguardFeatures = Integer.parseInt( 728 parser.getAttributeValue(null, ATTR_VALUE)); 729 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 730 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 731 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 732 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 733 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 734 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 735 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 736 permittedAccessiblityServices = readPackageList(parser, tag); 737 } else if (TAG_PERMITTED_IMES.equals(tag)) { 738 permittedInputMethods = readPackageList(parser, tag); 739 } else { 740 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 741 } 742 XmlUtils.skipCurrentTag(parser); 743 } 744 } 745 746 private List<String> readPackageList(XmlPullParser parser, 747 String tag) throws XmlPullParserException, IOException { 748 List<String> result = new ArrayList<String>(); 749 int outerDepth = parser.getDepth(); 750 int outerType; 751 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 752 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 753 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 754 continue; 755 } 756 String outerTag = parser.getName(); 757 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 758 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 759 if (packageName != null) { 760 result.add(packageName); 761 } else { 762 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 763 } 764 } else { 765 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 766 } 767 } 768 return result; 769 } 770 771 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 772 throws XmlPullParserException, IOException { 773 int outerDepthDAM = parser.getDepth(); 774 int typeDAM; 775 Set<String> result = new HashSet<String>(); 776 while ((typeDAM=parser.next()) != END_DOCUMENT 777 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 778 if (typeDAM == END_TAG || typeDAM == TEXT) { 779 continue; 780 } 781 String tagDAM = parser.getName(); 782 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 783 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 784 } else { 785 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 786 } 787 } 788 return result; 789 } 790 791 private HashMap<String, TrustAgentInfo> getAllTrustAgentInfos( 792 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 793 int outerDepthDAM = parser.getDepth(); 794 int typeDAM; 795 HashMap<String, TrustAgentInfo> result = new HashMap<String, TrustAgentInfo>(); 796 while ((typeDAM=parser.next()) != END_DOCUMENT 797 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 798 if (typeDAM == END_TAG || typeDAM == TEXT) { 799 continue; 800 } 801 String tagDAM = parser.getName(); 802 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 803 final String component = parser.getAttributeValue(null, ATTR_VALUE); 804 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 805 result.put(component, trustAgentInfo); 806 } else { 807 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 808 } 809 } 810 return result; 811 } 812 813 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 814 throws XmlPullParserException, IOException { 815 int outerDepthDAM = parser.getDepth(); 816 int typeDAM; 817 TrustAgentInfo result = new TrustAgentInfo(null); 818 while ((typeDAM=parser.next()) != END_DOCUMENT 819 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 820 if (typeDAM == END_TAG || typeDAM == TEXT) { 821 continue; 822 } 823 String tagDAM = parser.getName(); 824 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 825 PersistableBundle bundle = new PersistableBundle(); 826 bundle.restoreFromXml(parser); 827 result.options = bundle; 828 } else { 829 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 830 } 831 } 832 return result; 833 } 834 835 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 836 throws XmlPullParserException, IOException { 837 int outerDepthDAM = parser.getDepth(); 838 int typeDAM; 839 ArrayList<String> result = null; 840 while ((typeDAM=parser.next()) != END_DOCUMENT 841 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 842 if (typeDAM == END_TAG || typeDAM == TEXT) { 843 continue; 844 } 845 String tagDAM = parser.getName(); 846 if (TAG_PROVIDER.equals(tagDAM)) { 847 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 848 if (result == null) { 849 result = new ArrayList<>(); 850 } 851 result.add(provider); 852 } else { 853 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 854 } 855 } 856 return result; 857 } 858 859 void dump(String prefix, PrintWriter pw) { 860 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 861 pw.print(prefix); pw.println("policies:"); 862 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 863 if (pols != null) { 864 for (int i=0; i<pols.size(); i++) { 865 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 866 } 867 } 868 pw.print(prefix); pw.print("passwordQuality=0x"); 869 pw.println(Integer.toHexString(passwordQuality)); 870 pw.print(prefix); pw.print("minimumPasswordLength="); 871 pw.println(minimumPasswordLength); 872 pw.print(prefix); pw.print("passwordHistoryLength="); 873 pw.println(passwordHistoryLength); 874 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 875 pw.println(minimumPasswordUpperCase); 876 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 877 pw.println(minimumPasswordLowerCase); 878 pw.print(prefix); pw.print("minimumPasswordLetters="); 879 pw.println(minimumPasswordLetters); 880 pw.print(prefix); pw.print("minimumPasswordNumeric="); 881 pw.println(minimumPasswordNumeric); 882 pw.print(prefix); pw.print("minimumPasswordSymbols="); 883 pw.println(minimumPasswordSymbols); 884 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 885 pw.println(minimumPasswordNonLetter); 886 pw.print(prefix); pw.print("maximumTimeToUnlock="); 887 pw.println(maximumTimeToUnlock); 888 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 889 pw.println(maximumFailedPasswordsForWipe); 890 pw.print(prefix); pw.print("specifiesGlobalProxy="); 891 pw.println(specifiesGlobalProxy); 892 pw.print(prefix); pw.print("passwordExpirationTimeout="); 893 pw.println(passwordExpirationTimeout); 894 pw.print(prefix); pw.print("passwordExpirationDate="); 895 pw.println(passwordExpirationDate); 896 if (globalProxySpec != null) { 897 pw.print(prefix); pw.print("globalProxySpec="); 898 pw.println(globalProxySpec); 899 } 900 if (globalProxyExclusionList != null) { 901 pw.print(prefix); pw.print("globalProxyEclusionList="); 902 pw.println(globalProxyExclusionList); 903 } 904 pw.print(prefix); pw.print("encryptionRequested="); 905 pw.println(encryptionRequested); 906 pw.print(prefix); pw.print("disableCamera="); 907 pw.println(disableCamera); 908 pw.print(prefix); pw.print("disableCallerId="); 909 pw.println(disableCallerId); 910 pw.print(prefix); pw.print("disableScreenCapture="); 911 pw.println(disableScreenCapture); 912 pw.print(prefix); pw.print("requireAutoTime="); 913 pw.println(requireAutoTime); 914 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 915 pw.println(disabledKeyguardFeatures); 916 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 917 pw.println(crossProfileWidgetProviders); 918 if (!(permittedAccessiblityServices == null)) { 919 pw.print(prefix); pw.print("permittedAccessibilityServices="); 920 pw.println(permittedAccessiblityServices.toString()); 921 } 922 if (!(permittedInputMethods == null)) { 923 pw.print(prefix); pw.print("permittedInputMethods="); 924 pw.println(permittedInputMethods.toString()); 925 } 926 } 927 } 928 929 private void handlePackagesChanged(String packageName, int userHandle) { 930 boolean removed = false; 931 if (DBG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 932 DevicePolicyData policy = getUserData(userHandle); 933 IPackageManager pm = AppGlobals.getPackageManager(); 934 synchronized (this) { 935 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 936 ActiveAdmin aa = policy.mAdminList.get(i); 937 try { 938 // If we're checking all packages or if the specific one we're checking matches, 939 // then check if the package and receiver still exist. 940 final String adminPackage = aa.info.getPackageName(); 941 if (packageName == null || packageName.equals(adminPackage)) { 942 if (pm.getPackageInfo(adminPackage, 0, userHandle) == null 943 || pm.getReceiverInfo(aa.info.getComponent(), 0, userHandle) 944 == null) { 945 removed = true; 946 policy.mAdminList.remove(i); 947 policy.mAdminMap.remove(aa.info.getComponent()); 948 } 949 } 950 } catch (RemoteException re) { 951 // Shouldn't happen 952 } 953 } 954 if (removed) { 955 validatePasswordOwnerLocked(policy); 956 syncDeviceCapabilitiesLocked(policy); 957 saveSettingsLocked(policy.mUserHandle); 958 } 959 960 if (policy.mDelegatedCertInstallerPackage != null && 961 (packageName == null 962 || packageName.equals(policy.mDelegatedCertInstallerPackage))) { 963 try { 964 // Check if delegated cert installer package is removed. 965 if (pm.getPackageInfo( 966 policy.mDelegatedCertInstallerPackage, 0, userHandle) == null) { 967 policy.mDelegatedCertInstallerPackage = null; 968 saveSettingsLocked(policy.mUserHandle); 969 } 970 } catch (RemoteException e) { 971 // Shouldn't happen 972 } 973 } 974 } 975 } 976 977 /** 978 * Instantiates the service. 979 */ 980 public DevicePolicyManagerService(Context context) { 981 mContext = context; 982 mUserManager = UserManager.get(mContext); 983 mHasFeature = context.getPackageManager().hasSystemFeature( 984 PackageManager.FEATURE_DEVICE_ADMIN); 985 mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE); 986 mPowerManagerInternal = LocalServices.getService(PowerManagerInternal.class); 987 mWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "DPM"); 988 mLocalService = new LocalService(); 989 if (!mHasFeature) { 990 // Skip the rest of the initialization 991 return; 992 } 993 IntentFilter filter = new IntentFilter(); 994 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 995 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 996 filter.addAction(Intent.ACTION_USER_REMOVED); 997 filter.addAction(Intent.ACTION_USER_STARTED); 998 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 999 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1000 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1001 filter = new IntentFilter(); 1002 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1003 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1004 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1005 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1006 filter.addDataScheme("package"); 1007 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1008 1009 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1010 } 1011 1012 /** 1013 * Creates and loads the policy data from xml. 1014 * @param userHandle the user for whom to load the policy data 1015 * @return 1016 */ 1017 DevicePolicyData getUserData(int userHandle) { 1018 synchronized (this) { 1019 DevicePolicyData policy = mUserData.get(userHandle); 1020 if (policy == null) { 1021 policy = new DevicePolicyData(userHandle); 1022 mUserData.append(userHandle, policy); 1023 loadSettingsLocked(policy, userHandle); 1024 } 1025 return policy; 1026 } 1027 } 1028 1029 /** 1030 * Creates and loads the policy data from xml for data that is shared between 1031 * various profiles of a user. In contrast to {@link #getUserData(int)} 1032 * it allows access to data of users other than the calling user. 1033 * 1034 * This function should only be used for shared data, e.g. everything regarding 1035 * passwords and should be removed once multiple screen locks are present. 1036 * @param userHandle the user for whom to load the policy data 1037 * @return 1038 */ 1039 DevicePolicyData getUserDataUnchecked(int userHandle) { 1040 long ident = Binder.clearCallingIdentity(); 1041 try { 1042 return getUserData(userHandle); 1043 } finally { 1044 Binder.restoreCallingIdentity(ident); 1045 } 1046 } 1047 1048 void removeUserData(int userHandle) { 1049 synchronized (this) { 1050 if (userHandle == UserHandle.USER_OWNER) { 1051 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1052 return; 1053 } 1054 if (mDeviceOwner != null) { 1055 mDeviceOwner.removeProfileOwner(userHandle); 1056 mDeviceOwner.writeOwnerFile(); 1057 } 1058 1059 DevicePolicyData policy = mUserData.get(userHandle); 1060 if (policy != null) { 1061 mUserData.remove(userHandle); 1062 } 1063 File policyFile = new File(Environment.getUserSystemDirectory(userHandle), 1064 DEVICE_POLICIES_XML); 1065 policyFile.delete(); 1066 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1067 } 1068 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1069 } 1070 1071 void loadDeviceOwner() { 1072 synchronized (this) { 1073 mDeviceOwner = DeviceOwner.load(); 1074 } 1075 } 1076 1077 /** 1078 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1079 * reminders. Clears alarm if no expirations are configured. 1080 */ 1081 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1082 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1083 final long now = System.currentTimeMillis(); 1084 final long timeToExpire = expiration - now; 1085 final long alarmTime; 1086 if (expiration == 0) { 1087 // No expirations are currently configured: Cancel alarm. 1088 alarmTime = 0; 1089 } else if (timeToExpire <= 0) { 1090 // The password has already expired: Repeat every 24 hours. 1091 alarmTime = now + MS_PER_DAY; 1092 } else { 1093 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1094 // the expiration time. 1095 long alarmInterval = timeToExpire % MS_PER_DAY; 1096 if (alarmInterval == 0) { 1097 alarmInterval = MS_PER_DAY; 1098 } 1099 alarmTime = now + alarmInterval; 1100 } 1101 1102 long token = Binder.clearCallingIdentity(); 1103 try { 1104 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1105 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1106 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1107 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1108 new UserHandle(policy.mUserHandle)); 1109 am.cancel(pi); 1110 if (alarmTime != 0) { 1111 am.set(AlarmManager.RTC, alarmTime, pi); 1112 } 1113 } finally { 1114 Binder.restoreCallingIdentity(token); 1115 } 1116 } 1117 1118 private IWindowManager getWindowManager() { 1119 if (mIWindowManager == null) { 1120 IBinder b = ServiceManager.getService(Context.WINDOW_SERVICE); 1121 mIWindowManager = IWindowManager.Stub.asInterface(b); 1122 } 1123 return mIWindowManager; 1124 } 1125 1126 private NotificationManager getNotificationManager() { 1127 if (mNotificationManager == null) { 1128 mNotificationManager = 1129 (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE); 1130 } 1131 return mNotificationManager; 1132 } 1133 1134 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1135 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1136 if (admin != null 1137 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1138 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1139 return admin; 1140 } 1141 return null; 1142 } 1143 1144 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1145 throws SecurityException { 1146 final int callingUid = Binder.getCallingUid(); 1147 1148 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1149 if (result != null) { 1150 return result; 1151 } 1152 1153 if (who != null) { 1154 final int userId = UserHandle.getUserId(callingUid); 1155 final DevicePolicyData policy = getUserData(userId); 1156 ActiveAdmin admin = policy.mAdminMap.get(who); 1157 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1158 throw new SecurityException("Admin " + admin.info.getComponent() 1159 + " does not own the device"); 1160 } 1161 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1162 throw new SecurityException("Admin " + admin.info.getComponent() 1163 + " does not own the profile"); 1164 } 1165 throw new SecurityException("Admin " + admin.info.getComponent() 1166 + " did not specify uses-policy for: " 1167 + admin.info.getTagForPolicy(reqPolicy)); 1168 } else { 1169 throw new SecurityException("No active admin owned by uid " 1170 + Binder.getCallingUid() + " for policy #" + reqPolicy); 1171 } 1172 } 1173 1174 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1175 int uid) { 1176 // Try to find an admin which can use reqPolicy 1177 final int userId = UserHandle.getUserId(uid); 1178 final DevicePolicyData policy = getUserData(userId); 1179 if (who != null) { 1180 ActiveAdmin admin = policy.mAdminMap.get(who); 1181 if (admin == null) { 1182 throw new SecurityException("No active admin " + who); 1183 } 1184 if (admin.getUid() != uid) { 1185 throw new SecurityException("Admin " + who + " is not owned by uid " 1186 + Binder.getCallingUid()); 1187 } 1188 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 1189 return admin; 1190 } 1191 } else { 1192 for (ActiveAdmin admin : policy.mAdminList) { 1193 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 1194 userId)) { 1195 return admin; 1196 } 1197 } 1198 } 1199 1200 return null; 1201 } 1202 1203 private boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 1204 int userId) { 1205 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 1206 boolean ownsProfile = (getProfileOwner(userId) != null 1207 && getProfileOwner(userId).getPackageName() 1208 .equals(admin.info.getPackageName())); 1209 boolean ownsInitialization = isDeviceInitializer(admin.info.getPackageName()) 1210 && !hasUserSetupCompleted(userId); 1211 1212 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1213 if (ownsDevice || (userId == UserHandle.USER_OWNER && ownsInitialization)) { 1214 return true; 1215 } 1216 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1217 if (ownsDevice || ownsProfile || ownsInitialization) { 1218 return true; 1219 } 1220 } else { 1221 if (admin.info.usesPolicy(reqPolicy)) { 1222 return true; 1223 } 1224 } 1225 return false; 1226 } 1227 1228 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1229 sendAdminCommandLocked(admin, action, null); 1230 } 1231 1232 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1233 sendAdminCommandLocked(admin, action, null, result); 1234 } 1235 1236 /** 1237 * Send an update to one specific admin, get notified when that admin returns a result. 1238 */ 1239 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1240 BroadcastReceiver result) { 1241 Intent intent = new Intent(action); 1242 intent.setComponent(admin.info.getComponent()); 1243 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1244 intent.putExtra("expiration", admin.passwordExpirationDate); 1245 } 1246 if (adminExtras != null) { 1247 intent.putExtras(adminExtras); 1248 } 1249 if (result != null) { 1250 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1251 null, result, mHandler, Activity.RESULT_OK, null, null); 1252 } else { 1253 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1254 } 1255 } 1256 1257 /** 1258 * Send an update to all admins of a user that enforce a specified policy. 1259 */ 1260 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1261 final DevicePolicyData policy = getUserData(userHandle); 1262 final int count = policy.mAdminList.size(); 1263 if (count > 0) { 1264 for (int i = 0; i < count; i++) { 1265 final ActiveAdmin admin = policy.mAdminList.get(i); 1266 if (admin.info.usesPolicy(reqPolicy)) { 1267 sendAdminCommandLocked(admin, action); 1268 } 1269 } 1270 } 1271 } 1272 1273 /** 1274 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1275 * enforce a specified policy. 1276 */ 1277 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1278 int userHandle) { 1279 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1280 for (UserInfo ui : profiles) { 1281 int id = ui.id; 1282 sendAdminCommandLocked(action, reqPolicy, id); 1283 } 1284 } 1285 1286 void removeActiveAdminLocked(final ComponentName adminReceiver, int userHandle) { 1287 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1288 if (admin != null) { 1289 synchronized (this) { 1290 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 1291 } 1292 sendAdminCommandLocked(admin, 1293 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1294 new BroadcastReceiver() { 1295 @Override 1296 public void onReceive(Context context, Intent intent) { 1297 synchronized (DevicePolicyManagerService.this) { 1298 int userHandle = admin.getUserHandle().getIdentifier(); 1299 DevicePolicyData policy = getUserData(userHandle); 1300 boolean doProxyCleanup = admin.info.usesPolicy( 1301 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1302 policy.mAdminList.remove(admin); 1303 policy.mAdminMap.remove(adminReceiver); 1304 validatePasswordOwnerLocked(policy); 1305 syncDeviceCapabilitiesLocked(policy); 1306 if (doProxyCleanup) { 1307 resetGlobalProxyLocked(getUserData(userHandle)); 1308 } 1309 saveSettingsLocked(userHandle); 1310 updateMaximumTimeToLockLocked(policy); 1311 policy.mRemovingAdmins.remove(adminReceiver); 1312 } 1313 } 1314 }); 1315 } 1316 } 1317 1318 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) { 1319 if (!mHasFeature) { 1320 return null; 1321 } 1322 enforceCrossUserPermission(userHandle); 1323 Intent resolveIntent = new Intent(); 1324 resolveIntent.setComponent(adminName); 1325 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1326 resolveIntent, 1327 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1328 userHandle); 1329 if (infos == null || infos.size() <= 0) { 1330 throw new IllegalArgumentException("Unknown admin: " + adminName); 1331 } 1332 1333 try { 1334 return new DeviceAdminInfo(mContext, infos.get(0)); 1335 } catch (XmlPullParserException e) { 1336 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1337 e); 1338 return null; 1339 } catch (IOException e) { 1340 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1341 e); 1342 return null; 1343 } 1344 } 1345 1346 private static JournaledFile makeJournaledFile(int userHandle) { 1347 final String base = userHandle == 0 1348 ? "/data/system/" + DEVICE_POLICIES_XML 1349 : new File(Environment.getUserSystemDirectory(userHandle), DEVICE_POLICIES_XML) 1350 .getAbsolutePath(); 1351 return new JournaledFile(new File(base), new File(base + ".tmp")); 1352 } 1353 1354 private void saveSettingsLocked(int userHandle) { 1355 DevicePolicyData policy = getUserData(userHandle); 1356 JournaledFile journal = makeJournaledFile(userHandle); 1357 FileOutputStream stream = null; 1358 try { 1359 stream = new FileOutputStream(journal.chooseForWrite(), false); 1360 XmlSerializer out = new FastXmlSerializer(); 1361 out.setOutput(stream, "utf-8"); 1362 out.startDocument(null, true); 1363 1364 out.startTag(null, "policies"); 1365 if (policy.mRestrictionsProvider != null) { 1366 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1367 policy.mRestrictionsProvider.flattenToString()); 1368 } 1369 if (policy.mUserSetupComplete) { 1370 out.attribute(null, ATTR_SETUP_COMPLETE, 1371 Boolean.toString(true)); 1372 } 1373 if (policy.mDelegatedCertInstallerPackage != null) { 1374 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 1375 policy.mDelegatedCertInstallerPackage); 1376 } 1377 1378 1379 final int N = policy.mAdminList.size(); 1380 for (int i=0; i<N; i++) { 1381 ActiveAdmin ap = policy.mAdminList.get(i); 1382 if (ap != null) { 1383 out.startTag(null, "admin"); 1384 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1385 ap.writeToXml(out); 1386 out.endTag(null, "admin"); 1387 } 1388 } 1389 1390 if (policy.mPasswordOwner >= 0) { 1391 out.startTag(null, "password-owner"); 1392 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1393 out.endTag(null, "password-owner"); 1394 } 1395 1396 if (policy.mFailedPasswordAttempts != 0) { 1397 out.startTag(null, "failed-password-attempts"); 1398 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1399 out.endTag(null, "failed-password-attempts"); 1400 } 1401 1402 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1403 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1404 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1405 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1406 out.startTag(null, "active-password"); 1407 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1408 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1409 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1410 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1411 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1412 out.attribute(null, "numeric", Integer 1413 .toString(policy.mActivePasswordNumeric)); 1414 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1415 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1416 out.endTag(null, "active-password"); 1417 } 1418 1419 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1420 String component = policy.mLockTaskPackages.get(i); 1421 out.startTag(null, LOCK_TASK_COMPONENTS_XML); 1422 out.attribute(null, "name", component); 1423 out.endTag(null, LOCK_TASK_COMPONENTS_XML); 1424 } 1425 1426 out.endTag(null, "policies"); 1427 1428 out.endDocument(); 1429 stream.flush(); 1430 FileUtils.sync(stream); 1431 stream.close(); 1432 journal.commit(); 1433 sendChangedNotification(userHandle); 1434 } catch (IOException e) { 1435 try { 1436 if (stream != null) { 1437 stream.close(); 1438 } 1439 } catch (IOException ex) { 1440 // Ignore 1441 } 1442 journal.rollback(); 1443 } 1444 } 1445 1446 private void sendChangedNotification(int userHandle) { 1447 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1448 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1449 long ident = Binder.clearCallingIdentity(); 1450 try { 1451 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1452 } finally { 1453 Binder.restoreCallingIdentity(ident); 1454 } 1455 } 1456 1457 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1458 JournaledFile journal = makeJournaledFile(userHandle); 1459 FileInputStream stream = null; 1460 File file = journal.chooseForRead(); 1461 try { 1462 stream = new FileInputStream(file); 1463 XmlPullParser parser = Xml.newPullParser(); 1464 parser.setInput(stream, null); 1465 1466 int type; 1467 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1468 && type != XmlPullParser.START_TAG) { 1469 } 1470 String tag = parser.getName(); 1471 if (!"policies".equals(tag)) { 1472 throw new XmlPullParserException( 1473 "Settings do not start with policies tag: found " + tag); 1474 } 1475 1476 // Extract the permission provider component name if available 1477 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1478 if (permissionProvider != null) { 1479 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1480 } 1481 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1482 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1483 policy.mUserSetupComplete = true; 1484 } 1485 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 1486 ATTR_DELEGATED_CERT_INSTALLER); 1487 1488 type = parser.next(); 1489 int outerDepth = parser.getDepth(); 1490 policy.mLockTaskPackages.clear(); 1491 policy.mAdminList.clear(); 1492 policy.mAdminMap.clear(); 1493 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1494 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1495 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1496 continue; 1497 } 1498 tag = parser.getName(); 1499 if ("admin".equals(tag)) { 1500 String name = parser.getAttributeValue(null, "name"); 1501 try { 1502 DeviceAdminInfo dai = findAdmin( 1503 ComponentName.unflattenFromString(name), userHandle); 1504 if (DBG && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1505 != userHandle)) { 1506 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1507 + dai.getActivityInfo().applicationInfo.uid + " for user " 1508 + userHandle); 1509 } 1510 if (dai != null) { 1511 ActiveAdmin ap = new ActiveAdmin(dai); 1512 ap.readFromXml(parser); 1513 policy.mAdminMap.put(ap.info.getComponent(), ap); 1514 } 1515 } catch (RuntimeException e) { 1516 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1517 } 1518 } else if ("failed-password-attempts".equals(tag)) { 1519 policy.mFailedPasswordAttempts = Integer.parseInt( 1520 parser.getAttributeValue(null, "value")); 1521 XmlUtils.skipCurrentTag(parser); 1522 } else if ("password-owner".equals(tag)) { 1523 policy.mPasswordOwner = Integer.parseInt( 1524 parser.getAttributeValue(null, "value")); 1525 XmlUtils.skipCurrentTag(parser); 1526 } else if ("active-password".equals(tag)) { 1527 policy.mActivePasswordQuality = Integer.parseInt( 1528 parser.getAttributeValue(null, "quality")); 1529 policy.mActivePasswordLength = Integer.parseInt( 1530 parser.getAttributeValue(null, "length")); 1531 policy.mActivePasswordUpperCase = Integer.parseInt( 1532 parser.getAttributeValue(null, "uppercase")); 1533 policy.mActivePasswordLowerCase = Integer.parseInt( 1534 parser.getAttributeValue(null, "lowercase")); 1535 policy.mActivePasswordLetters = Integer.parseInt( 1536 parser.getAttributeValue(null, "letters")); 1537 policy.mActivePasswordNumeric = Integer.parseInt( 1538 parser.getAttributeValue(null, "numeric")); 1539 policy.mActivePasswordSymbols = Integer.parseInt( 1540 parser.getAttributeValue(null, "symbols")); 1541 policy.mActivePasswordNonLetter = Integer.parseInt( 1542 parser.getAttributeValue(null, "nonletter")); 1543 XmlUtils.skipCurrentTag(parser); 1544 } else if (LOCK_TASK_COMPONENTS_XML.equals(tag)) { 1545 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 1546 XmlUtils.skipCurrentTag(parser); 1547 } else { 1548 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1549 XmlUtils.skipCurrentTag(parser); 1550 } 1551 } 1552 } catch (NullPointerException e) { 1553 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1554 } catch (NumberFormatException e) { 1555 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1556 } catch (XmlPullParserException e) { 1557 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1558 } catch (FileNotFoundException e) { 1559 // Don't be noisy, this is normal if we haven't defined any policies. 1560 } catch (IOException e) { 1561 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1562 } catch (IndexOutOfBoundsException e) { 1563 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1564 } 1565 try { 1566 if (stream != null) { 1567 stream.close(); 1568 } 1569 } catch (IOException e) { 1570 // Ignore 1571 } 1572 1573 // Generate a list of admins from the admin map 1574 policy.mAdminList.addAll(policy.mAdminMap.values()); 1575 1576 // Validate that what we stored for the password quality matches 1577 // sufficiently what is currently set. Note that this is only 1578 // a sanity check in case the two get out of sync; this should 1579 // never normally happen. 1580 LockPatternUtils utils = new LockPatternUtils(mContext); 1581 if (utils.getActivePasswordQuality(userHandle) < policy.mActivePasswordQuality) { 1582 Slog.w(LOG_TAG, "Active password quality 0x" 1583 + Integer.toHexString(policy.mActivePasswordQuality) 1584 + " does not match actual quality 0x" 1585 + Integer.toHexString(utils.getActivePasswordQuality(userHandle))); 1586 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1587 policy.mActivePasswordLength = 0; 1588 policy.mActivePasswordUpperCase = 0; 1589 policy.mActivePasswordLowerCase = 0; 1590 policy.mActivePasswordLetters = 0; 1591 policy.mActivePasswordNumeric = 0; 1592 policy.mActivePasswordSymbols = 0; 1593 policy.mActivePasswordNonLetter = 0; 1594 } 1595 1596 validatePasswordOwnerLocked(policy); 1597 syncDeviceCapabilitiesLocked(policy); 1598 updateMaximumTimeToLockLocked(policy); 1599 } 1600 1601 static void validateQualityConstant(int quality) { 1602 switch (quality) { 1603 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 1604 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 1605 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 1606 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 1607 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 1608 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 1609 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 1610 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 1611 return; 1612 } 1613 throw new IllegalArgumentException("Invalid quality constant: 0x" 1614 + Integer.toHexString(quality)); 1615 } 1616 1617 void validatePasswordOwnerLocked(DevicePolicyData policy) { 1618 if (policy.mPasswordOwner >= 0) { 1619 boolean haveOwner = false; 1620 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1621 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 1622 haveOwner = true; 1623 break; 1624 } 1625 } 1626 if (!haveOwner) { 1627 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 1628 + " no longer active; disabling"); 1629 policy.mPasswordOwner = -1; 1630 } 1631 } 1632 } 1633 1634 /** 1635 * Pushes down policy information to the system for any policies related to general device 1636 * capabilities that need to be enforced by lower level services (e.g. Camera services). 1637 */ 1638 void syncDeviceCapabilitiesLocked(DevicePolicyData policy) { 1639 // Ensure the status of the camera is synced down to the system. Interested native services 1640 // should monitor this value and act accordingly. 1641 String cameraPropertyForUser = SYSTEM_PROP_DISABLE_CAMERA_PREFIX + policy.mUserHandle; 1642 boolean systemState = SystemProperties.getBoolean(cameraPropertyForUser, false); 1643 boolean cameraDisabled = getCameraDisabled(null, policy.mUserHandle); 1644 if (cameraDisabled != systemState) { 1645 long token = Binder.clearCallingIdentity(); 1646 try { 1647 String value = cameraDisabled ? "1" : "0"; 1648 if (DBG) Slog.v(LOG_TAG, "Change in camera state [" 1649 + cameraPropertyForUser + "] = " + value); 1650 SystemProperties.set(cameraPropertyForUser, value); 1651 } finally { 1652 Binder.restoreCallingIdentity(token); 1653 } 1654 } 1655 } 1656 1657 public void systemReady() { 1658 if (!mHasFeature) { 1659 return; 1660 } 1661 getUserData(UserHandle.USER_OWNER); 1662 loadDeviceOwner(); 1663 cleanUpOldUsers(); 1664 // Register an observer for watching for user setup complete. 1665 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 1666 // Initialize the user setup state, to handle the upgrade case. 1667 updateUserSetupComplete(); 1668 1669 // Update the screen capture disabled cache in the window manager 1670 List<UserInfo> users = mUserManager.getUsers(true); 1671 final int N = users.size(); 1672 for (int i = 0; i < N; i++) { 1673 int userHandle = users.get(i).id; 1674 updateScreenCaptureDisabledInWindowManager(userHandle, 1675 getScreenCaptureDisabled(null, userHandle)); 1676 } 1677 1678 } 1679 1680 private void cleanUpOldUsers() { 1681 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 1682 // before reboot 1683 Set<Integer> usersWithProfileOwners; 1684 Set<Integer> usersWithData; 1685 synchronized(this) { 1686 usersWithProfileOwners = mDeviceOwner != null 1687 ? mDeviceOwner.getProfileOwnerKeys() : new HashSet<Integer>(); 1688 usersWithData = new HashSet<Integer>(); 1689 for (int i = 0; i < mUserData.size(); i++) { 1690 usersWithData.add(mUserData.keyAt(i)); 1691 } 1692 } 1693 List<UserInfo> allUsers = mUserManager.getUsers(); 1694 1695 Set<Integer> deletedUsers = new HashSet<Integer>(); 1696 deletedUsers.addAll(usersWithProfileOwners); 1697 deletedUsers.addAll(usersWithData); 1698 for (UserInfo userInfo : allUsers) { 1699 deletedUsers.remove(userInfo.id); 1700 } 1701 for (Integer userId : deletedUsers) { 1702 removeUserData(userId); 1703 } 1704 } 1705 1706 private void handlePasswordExpirationNotification(int userHandle) { 1707 synchronized (this) { 1708 final long now = System.currentTimeMillis(); 1709 1710 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1711 for (UserInfo ui : profiles) { 1712 int profileUserHandle = ui.id; 1713 final DevicePolicyData policy = getUserData(profileUserHandle); 1714 final int count = policy.mAdminList.size(); 1715 if (count > 0) { 1716 for (int i = 0; i < count; i++) { 1717 final ActiveAdmin admin = policy.mAdminList.get(i); 1718 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 1719 && admin.passwordExpirationTimeout > 0L 1720 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 1721 && admin.passwordExpirationDate > 0L) { 1722 sendAdminCommandLocked(admin, 1723 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 1724 } 1725 } 1726 } 1727 } 1728 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 1729 } 1730 } 1731 1732 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 1733 @Override 1734 protected Void doInBackground(Intent... params) { 1735 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 1736 1737 if (userHandle == UserHandle.USER_ALL) { 1738 for (UserInfo userInfo : mUserManager.getUsers()) { 1739 manageNotification(userInfo.getUserHandle()); 1740 } 1741 } else { 1742 manageNotification(new UserHandle(userHandle)); 1743 } 1744 return null; 1745 } 1746 1747 private void manageNotification(UserHandle userHandle) { 1748 if (!mUserManager.isUserRunning(userHandle)) { 1749 return; 1750 } 1751 1752 // Call out to KeyChain to check for user-added CAs 1753 boolean hasCert = false; 1754 try { 1755 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 1756 try { 1757 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 1758 hasCert = true; 1759 } 1760 } catch (RemoteException e) { 1761 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 1762 } finally { 1763 kcs.close(); 1764 } 1765 } catch (InterruptedException e) { 1766 Thread.currentThread().interrupt(); 1767 } catch (RuntimeException e) { 1768 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 1769 } 1770 if (!hasCert) { 1771 getNotificationManager().cancelAsUser( 1772 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 1773 return; 1774 } 1775 1776 // Build and show a warning notification 1777 int smallIconId; 1778 String contentText; 1779 final String ownerName = getDeviceOwnerName(); 1780 if (isManagedProfile(userHandle.getIdentifier())) { 1781 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 1782 smallIconId = R.drawable.stat_sys_certificate_info; 1783 } else if (ownerName != null) { 1784 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 1785 smallIconId = R.drawable.stat_sys_certificate_info; 1786 } else { 1787 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 1788 smallIconId = android.R.drawable.stat_sys_warning; 1789 } 1790 1791 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 1792 dialogIntent.setFlags( 1793 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 1794 dialogIntent.setPackage("com.android.settings"); 1795 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 1796 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 1797 1798 final Context userContext; 1799 try { 1800 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 1801 } catch (PackageManager.NameNotFoundException e) { 1802 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 1803 return; 1804 } 1805 final Notification noti = new Notification.Builder(userContext) 1806 .setSmallIcon(smallIconId) 1807 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 1808 .setContentText(contentText) 1809 .setContentIntent(notifyIntent) 1810 .setPriority(Notification.PRIORITY_HIGH) 1811 .setShowWhen(false) 1812 .setColor(mContext.getColor( 1813 com.android.internal.R.color.system_notification_accent_color)) 1814 .build(); 1815 1816 getNotificationManager().notifyAsUser( 1817 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 1818 } 1819 } 1820 1821 /** 1822 * @param adminReceiver The admin to add 1823 * @param refreshing true = update an active admin, no error 1824 */ 1825 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 1826 if (!mHasFeature) { 1827 return; 1828 } 1829 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 1830 } 1831 1832 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 1833 Bundle onEnableData) { 1834 mContext.enforceCallingOrSelfPermission( 1835 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1836 enforceCrossUserPermission(userHandle); 1837 1838 DevicePolicyData policy = getUserData(userHandle); 1839 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle); 1840 if (info == null) { 1841 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 1842 } 1843 synchronized (this) { 1844 long ident = Binder.clearCallingIdentity(); 1845 try { 1846 if (!refreshing 1847 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 1848 throw new IllegalArgumentException("Admin is already added"); 1849 } 1850 ActiveAdmin newAdmin = new ActiveAdmin(info); 1851 policy.mAdminMap.put(adminReceiver, newAdmin); 1852 int replaceIndex = -1; 1853 final int N = policy.mAdminList.size(); 1854 for (int i=0; i < N; i++) { 1855 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 1856 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 1857 replaceIndex = i; 1858 break; 1859 } 1860 } 1861 if (replaceIndex == -1) { 1862 policy.mAdminList.add(newAdmin); 1863 enableIfNecessary(info.getPackageName(), userHandle); 1864 } else { 1865 policy.mAdminList.set(replaceIndex, newAdmin); 1866 } 1867 saveSettingsLocked(userHandle); 1868 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 1869 onEnableData, null); 1870 } finally { 1871 Binder.restoreCallingIdentity(ident); 1872 } 1873 } 1874 } 1875 1876 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 1877 if (!mHasFeature) { 1878 return false; 1879 } 1880 enforceCrossUserPermission(userHandle); 1881 synchronized (this) { 1882 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 1883 } 1884 } 1885 1886 @Override 1887 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 1888 if (!mHasFeature) { 1889 return false; 1890 } 1891 enforceCrossUserPermission(userHandle); 1892 synchronized (this) { 1893 DevicePolicyData policyData = getUserData(userHandle); 1894 return policyData.mRemovingAdmins.contains(adminReceiver); 1895 } 1896 } 1897 1898 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 1899 if (!mHasFeature) { 1900 return false; 1901 } 1902 enforceCrossUserPermission(userHandle); 1903 synchronized (this) { 1904 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1905 if (administrator == null) { 1906 throw new SecurityException("No active admin " + adminReceiver); 1907 } 1908 return administrator.info.usesPolicy(policyId); 1909 } 1910 } 1911 1912 @SuppressWarnings("unchecked") 1913 public List<ComponentName> getActiveAdmins(int userHandle) { 1914 if (!mHasFeature) { 1915 return Collections.EMPTY_LIST; 1916 } 1917 1918 enforceCrossUserPermission(userHandle); 1919 synchronized (this) { 1920 DevicePolicyData policy = getUserData(userHandle); 1921 final int N = policy.mAdminList.size(); 1922 if (N <= 0) { 1923 return null; 1924 } 1925 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 1926 for (int i=0; i<N; i++) { 1927 res.add(policy.mAdminList.get(i).info.getComponent()); 1928 } 1929 return res; 1930 } 1931 } 1932 1933 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 1934 if (!mHasFeature) { 1935 return false; 1936 } 1937 enforceCrossUserPermission(userHandle); 1938 synchronized (this) { 1939 DevicePolicyData policy = getUserData(userHandle); 1940 final int N = policy.mAdminList.size(); 1941 for (int i=0; i<N; i++) { 1942 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 1943 return true; 1944 } 1945 } 1946 return false; 1947 } 1948 } 1949 1950 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 1951 if (!mHasFeature) { 1952 return; 1953 } 1954 enforceCrossUserPermission(userHandle); 1955 synchronized (this) { 1956 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1957 if (admin == null) { 1958 return; 1959 } 1960 if (admin.getUid() != Binder.getCallingUid()) { 1961 // Active device owners must remain active admins. 1962 if (isDeviceOwner(adminReceiver.getPackageName())) { 1963 return; 1964 } 1965 mContext.enforceCallingOrSelfPermission( 1966 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1967 } 1968 long ident = Binder.clearCallingIdentity(); 1969 try { 1970 removeActiveAdminLocked(adminReceiver, userHandle); 1971 } finally { 1972 Binder.restoreCallingIdentity(ident); 1973 } 1974 } 1975 } 1976 1977 public void setPasswordQuality(ComponentName who, int quality) { 1978 if (!mHasFeature) { 1979 return; 1980 } 1981 Preconditions.checkNotNull(who, "ComponentName is null"); 1982 final int userHandle = UserHandle.getCallingUserId(); 1983 validateQualityConstant(quality); 1984 1985 synchronized (this) { 1986 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1987 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1988 if (ap.passwordQuality != quality) { 1989 ap.passwordQuality = quality; 1990 saveSettingsLocked(userHandle); 1991 } 1992 } 1993 } 1994 1995 public int getPasswordQuality(ComponentName who, int userHandle) { 1996 if (!mHasFeature) { 1997 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1998 } 1999 enforceCrossUserPermission(userHandle); 2000 synchronized (this) { 2001 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2002 2003 if (who != null) { 2004 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2005 return admin != null ? admin.passwordQuality : mode; 2006 } 2007 2008 // Return strictest policy for this user and profiles that are visible from this user. 2009 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2010 for (UserInfo userInfo : profiles) { 2011 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2012 final int N = policy.mAdminList.size(); 2013 for (int i=0; i<N; i++) { 2014 ActiveAdmin admin = policy.mAdminList.get(i); 2015 if (mode < admin.passwordQuality) { 2016 mode = admin.passwordQuality; 2017 } 2018 } 2019 } 2020 return mode; 2021 } 2022 } 2023 2024 public void setPasswordMinimumLength(ComponentName who, int length) { 2025 if (!mHasFeature) { 2026 return; 2027 } 2028 Preconditions.checkNotNull(who, "ComponentName is null"); 2029 final int userHandle = UserHandle.getCallingUserId(); 2030 synchronized (this) { 2031 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2032 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2033 if (ap.minimumPasswordLength != length) { 2034 ap.minimumPasswordLength = length; 2035 saveSettingsLocked(userHandle); 2036 } 2037 } 2038 } 2039 2040 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 2041 if (!mHasFeature) { 2042 return 0; 2043 } 2044 enforceCrossUserPermission(userHandle); 2045 synchronized (this) { 2046 int length = 0; 2047 2048 if (who != null) { 2049 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2050 return admin != null ? admin.minimumPasswordLength : length; 2051 } 2052 2053 // Return strictest policy for this user and profiles that are visible from this user. 2054 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2055 for (UserInfo userInfo : profiles) { 2056 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2057 final int N = policy.mAdminList.size(); 2058 for (int i=0; i<N; i++) { 2059 ActiveAdmin admin = policy.mAdminList.get(i); 2060 if (length < admin.minimumPasswordLength) { 2061 length = admin.minimumPasswordLength; 2062 } 2063 } 2064 } 2065 return length; 2066 } 2067 } 2068 2069 public void setPasswordHistoryLength(ComponentName who, int length) { 2070 if (!mHasFeature) { 2071 return; 2072 } 2073 Preconditions.checkNotNull(who, "ComponentName is null"); 2074 final int userHandle = UserHandle.getCallingUserId(); 2075 synchronized (this) { 2076 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2077 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2078 if (ap.passwordHistoryLength != length) { 2079 ap.passwordHistoryLength = length; 2080 saveSettingsLocked(userHandle); 2081 } 2082 } 2083 } 2084 2085 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 2086 if (!mHasFeature) { 2087 return 0; 2088 } 2089 enforceCrossUserPermission(userHandle); 2090 synchronized (this) { 2091 int length = 0; 2092 2093 if (who != null) { 2094 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2095 return admin != null ? admin.passwordHistoryLength : length; 2096 } 2097 2098 // Return strictest policy for this user and profiles that are visible from this user. 2099 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2100 for (UserInfo userInfo : profiles) { 2101 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2102 final int N = policy.mAdminList.size(); 2103 for (int i = 0; i < N; i++) { 2104 ActiveAdmin admin = policy.mAdminList.get(i); 2105 if (length < admin.passwordHistoryLength) { 2106 length = admin.passwordHistoryLength; 2107 } 2108 } 2109 } 2110 return length; 2111 } 2112 } 2113 2114 public void setPasswordExpirationTimeout(ComponentName who, long timeout) { 2115 if (!mHasFeature) { 2116 return; 2117 } 2118 Preconditions.checkNotNull(who, "ComponentName is null"); 2119 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 2120 final int userHandle = UserHandle.getCallingUserId(); 2121 synchronized (this) { 2122 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2123 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2124 // Calling this API automatically bumps the expiration date 2125 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2126 ap.passwordExpirationDate = expiration; 2127 ap.passwordExpirationTimeout = timeout; 2128 if (timeout > 0L) { 2129 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2130 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2131 .format(new Date(expiration))); 2132 } 2133 saveSettingsLocked(userHandle); 2134 // in case this is the first one 2135 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2136 } 2137 } 2138 2139 /** 2140 * Return a single admin's expiration cycle time, or the min of all cycle times. 2141 * Returns 0 if not configured. 2142 */ 2143 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2144 if (!mHasFeature) { 2145 return 0L; 2146 } 2147 enforceCrossUserPermission(userHandle); 2148 synchronized (this) { 2149 long timeout = 0L; 2150 2151 if (who != null) { 2152 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2153 return admin != null ? admin.passwordExpirationTimeout : timeout; 2154 } 2155 2156 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2157 for (UserInfo userInfo : profiles) { 2158 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2159 final int N = policy.mAdminList.size(); 2160 for (int i = 0; i < N; i++) { 2161 ActiveAdmin admin = policy.mAdminList.get(i); 2162 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2163 && timeout > admin.passwordExpirationTimeout)) { 2164 timeout = admin.passwordExpirationTimeout; 2165 } 2166 } 2167 } 2168 return timeout; 2169 } 2170 } 2171 2172 @Override 2173 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2174 final int userId = UserHandle.getCallingUserId(); 2175 List<String> changedProviders = null; 2176 2177 synchronized (this) { 2178 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2179 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2180 if (activeAdmin.crossProfileWidgetProviders == null) { 2181 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2182 } 2183 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2184 if (!providers.contains(packageName)) { 2185 providers.add(packageName); 2186 changedProviders = new ArrayList<>(providers); 2187 saveSettingsLocked(userId); 2188 } 2189 } 2190 2191 if (changedProviders != null) { 2192 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2193 return true; 2194 } 2195 2196 return false; 2197 } 2198 2199 @Override 2200 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2201 final int userId = UserHandle.getCallingUserId(); 2202 List<String> changedProviders = null; 2203 2204 synchronized (this) { 2205 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2206 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2207 if (activeAdmin.crossProfileWidgetProviders == null) { 2208 return false; 2209 } 2210 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2211 if (providers.remove(packageName)) { 2212 changedProviders = new ArrayList<>(providers); 2213 saveSettingsLocked(userId); 2214 } 2215 } 2216 2217 if (changedProviders != null) { 2218 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2219 return true; 2220 } 2221 2222 return false; 2223 } 2224 2225 @Override 2226 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2227 synchronized (this) { 2228 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2229 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2230 if (activeAdmin.crossProfileWidgetProviders == null 2231 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2232 return null; 2233 } 2234 if (Binder.getCallingUid() == Process.myUid()) { 2235 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2236 } else { 2237 return activeAdmin.crossProfileWidgetProviders; 2238 } 2239 } 2240 } 2241 2242 /** 2243 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2244 * Returns 0 if not configured. 2245 */ 2246 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2247 long timeout = 0L; 2248 2249 if (who != null) { 2250 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2251 return admin != null ? admin.passwordExpirationDate : timeout; 2252 } 2253 2254 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2255 for (UserInfo userInfo : profiles) { 2256 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2257 final int N = policy.mAdminList.size(); 2258 for (int i = 0; i < N; i++) { 2259 ActiveAdmin admin = policy.mAdminList.get(i); 2260 if (timeout == 0L || (admin.passwordExpirationDate != 0 2261 && timeout > admin.passwordExpirationDate)) { 2262 timeout = admin.passwordExpirationDate; 2263 } 2264 } 2265 } 2266 return timeout; 2267 } 2268 2269 public long getPasswordExpiration(ComponentName who, int userHandle) { 2270 if (!mHasFeature) { 2271 return 0L; 2272 } 2273 enforceCrossUserPermission(userHandle); 2274 synchronized (this) { 2275 return getPasswordExpirationLocked(who, userHandle); 2276 } 2277 } 2278 2279 public void setPasswordMinimumUpperCase(ComponentName who, int length) { 2280 if (!mHasFeature) { 2281 return; 2282 } 2283 Preconditions.checkNotNull(who, "ComponentName is null"); 2284 final int userHandle = UserHandle.getCallingUserId(); 2285 synchronized (this) { 2286 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2287 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2288 if (ap.minimumPasswordUpperCase != length) { 2289 ap.minimumPasswordUpperCase = length; 2290 saveSettingsLocked(userHandle); 2291 } 2292 } 2293 } 2294 2295 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2296 if (!mHasFeature) { 2297 return 0; 2298 } 2299 enforceCrossUserPermission(userHandle); 2300 synchronized (this) { 2301 int length = 0; 2302 2303 if (who != null) { 2304 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2305 return admin != null ? admin.minimumPasswordUpperCase : length; 2306 } 2307 2308 // Return strictest policy for this user and profiles that are visible from this user. 2309 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2310 for (UserInfo userInfo : profiles) { 2311 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2312 final int N = policy.mAdminList.size(); 2313 for (int i=0; i<N; i++) { 2314 ActiveAdmin admin = policy.mAdminList.get(i); 2315 if (length < admin.minimumPasswordUpperCase) { 2316 length = admin.minimumPasswordUpperCase; 2317 } 2318 } 2319 } 2320 return length; 2321 } 2322 } 2323 2324 public void setPasswordMinimumLowerCase(ComponentName who, int length) { 2325 Preconditions.checkNotNull(who, "ComponentName is null"); 2326 final int userHandle = UserHandle.getCallingUserId(); 2327 synchronized (this) { 2328 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2329 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2330 if (ap.minimumPasswordLowerCase != length) { 2331 ap.minimumPasswordLowerCase = length; 2332 saveSettingsLocked(userHandle); 2333 } 2334 } 2335 } 2336 2337 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2338 if (!mHasFeature) { 2339 return 0; 2340 } 2341 enforceCrossUserPermission(userHandle); 2342 synchronized (this) { 2343 int length = 0; 2344 2345 if (who != null) { 2346 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2347 return admin != null ? admin.minimumPasswordLowerCase : length; 2348 } 2349 2350 // Return strictest policy for this user and profiles that are visible from this user. 2351 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2352 for (UserInfo userInfo : profiles) { 2353 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2354 final int N = policy.mAdminList.size(); 2355 for (int i=0; i<N; i++) { 2356 ActiveAdmin admin = policy.mAdminList.get(i); 2357 if (length < admin.minimumPasswordLowerCase) { 2358 length = admin.minimumPasswordLowerCase; 2359 } 2360 } 2361 } 2362 return length; 2363 } 2364 } 2365 2366 public void setPasswordMinimumLetters(ComponentName who, int length) { 2367 if (!mHasFeature) { 2368 return; 2369 } 2370 Preconditions.checkNotNull(who, "ComponentName is null"); 2371 final int userHandle = UserHandle.getCallingUserId(); 2372 synchronized (this) { 2373 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2374 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2375 if (ap.minimumPasswordLetters != length) { 2376 ap.minimumPasswordLetters = length; 2377 saveSettingsLocked(userHandle); 2378 } 2379 } 2380 } 2381 2382 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2383 if (!mHasFeature) { 2384 return 0; 2385 } 2386 enforceCrossUserPermission(userHandle); 2387 synchronized (this) { 2388 int length = 0; 2389 2390 if (who != null) { 2391 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2392 return admin != null ? admin.minimumPasswordLetters : length; 2393 } 2394 2395 // Return strictest policy for this user and profiles that are visible from this user. 2396 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2397 for (UserInfo userInfo : profiles) { 2398 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2399 final int N = policy.mAdminList.size(); 2400 for (int i=0; i<N; i++) { 2401 ActiveAdmin admin = policy.mAdminList.get(i); 2402 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2403 continue; 2404 } 2405 if (length < admin.minimumPasswordLetters) { 2406 length = admin.minimumPasswordLetters; 2407 } 2408 } 2409 } 2410 return length; 2411 } 2412 } 2413 2414 public void setPasswordMinimumNumeric(ComponentName who, int length) { 2415 if (!mHasFeature) { 2416 return; 2417 } 2418 Preconditions.checkNotNull(who, "ComponentName is null"); 2419 final int userHandle = UserHandle.getCallingUserId(); 2420 synchronized (this) { 2421 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2422 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2423 if (ap.minimumPasswordNumeric != length) { 2424 ap.minimumPasswordNumeric = length; 2425 saveSettingsLocked(userHandle); 2426 } 2427 } 2428 } 2429 2430 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2431 if (!mHasFeature) { 2432 return 0; 2433 } 2434 enforceCrossUserPermission(userHandle); 2435 synchronized (this) { 2436 int length = 0; 2437 2438 if (who != null) { 2439 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2440 return admin != null ? admin.minimumPasswordNumeric : length; 2441 } 2442 2443 // Return strictest policy for this user and profiles that are visible from this user. 2444 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2445 for (UserInfo userInfo : profiles) { 2446 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2447 final int N = policy.mAdminList.size(); 2448 for (int i = 0; i < N; i++) { 2449 ActiveAdmin admin = policy.mAdminList.get(i); 2450 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2451 continue; 2452 } 2453 if (length < admin.minimumPasswordNumeric) { 2454 length = admin.minimumPasswordNumeric; 2455 } 2456 } 2457 } 2458 return length; 2459 } 2460 } 2461 2462 public void setPasswordMinimumSymbols(ComponentName who, int length) { 2463 if (!mHasFeature) { 2464 return; 2465 } 2466 Preconditions.checkNotNull(who, "ComponentName is null"); 2467 final int userHandle = UserHandle.getCallingUserId(); 2468 synchronized (this) { 2469 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2470 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2471 if (ap.minimumPasswordSymbols != length) { 2472 ap.minimumPasswordSymbols = length; 2473 saveSettingsLocked(userHandle); 2474 } 2475 } 2476 } 2477 2478 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 2479 if (!mHasFeature) { 2480 return 0; 2481 } 2482 enforceCrossUserPermission(userHandle); 2483 synchronized (this) { 2484 int length = 0; 2485 2486 if (who != null) { 2487 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2488 return admin != null ? admin.minimumPasswordSymbols : length; 2489 } 2490 2491 // Return strictest policy for this user and profiles that are visible from this user. 2492 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2493 for (UserInfo userInfo : profiles) { 2494 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2495 final int N = policy.mAdminList.size(); 2496 for (int i=0; i<N; i++) { 2497 ActiveAdmin admin = policy.mAdminList.get(i); 2498 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2499 continue; 2500 } 2501 if (length < admin.minimumPasswordSymbols) { 2502 length = admin.minimumPasswordSymbols; 2503 } 2504 } 2505 } 2506 return length; 2507 } 2508 } 2509 2510 public void setPasswordMinimumNonLetter(ComponentName who, int length) { 2511 if (!mHasFeature) { 2512 return; 2513 } 2514 Preconditions.checkNotNull(who, "ComponentName is null"); 2515 final int userHandle = UserHandle.getCallingUserId(); 2516 synchronized (this) { 2517 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2518 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2519 if (ap.minimumPasswordNonLetter != length) { 2520 ap.minimumPasswordNonLetter = length; 2521 saveSettingsLocked(userHandle); 2522 } 2523 } 2524 } 2525 2526 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 2527 if (!mHasFeature) { 2528 return 0; 2529 } 2530 enforceCrossUserPermission(userHandle); 2531 synchronized (this) { 2532 int length = 0; 2533 2534 if (who != null) { 2535 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2536 return admin != null ? admin.minimumPasswordNonLetter : length; 2537 } 2538 2539 // Return strictest policy for this user and profiles that are visible from this user. 2540 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2541 for (UserInfo userInfo : profiles) { 2542 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2543 final int N = policy.mAdminList.size(); 2544 for (int i=0; i<N; i++) { 2545 ActiveAdmin admin = policy.mAdminList.get(i); 2546 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 2547 continue; 2548 } 2549 if (length < admin.minimumPasswordNonLetter) { 2550 length = admin.minimumPasswordNonLetter; 2551 } 2552 } 2553 } 2554 return length; 2555 } 2556 } 2557 2558 public boolean isActivePasswordSufficient(int userHandle) { 2559 if (!mHasFeature) { 2560 return true; 2561 } 2562 enforceCrossUserPermission(userHandle); 2563 2564 synchronized (this) { 2565 2566 // The active password is stored in the user that runs the launcher 2567 // If the user this is called from is part of a profile group, that is the parent 2568 // of the group. 2569 UserInfo parent = getProfileParent(userHandle); 2570 int id = (parent == null) ? userHandle : parent.id; 2571 DevicePolicyData policy = getUserDataUnchecked(id); 2572 2573 // This API can only be called by an active device admin, 2574 // so try to retrieve it to check that the caller is one. 2575 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2576 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 2577 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 2578 return false; 2579 } 2580 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2581 return true; 2582 } 2583 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 2584 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 2585 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 2586 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 2587 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 2588 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 2589 } 2590 } 2591 2592 public int getCurrentFailedPasswordAttempts(int userHandle) { 2593 synchronized (this) { 2594 // This API can only be called by an active device admin, 2595 // so try to retrieve it to check that the caller is one. 2596 getActiveAdminForCallerLocked(null, 2597 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2598 2599 // The active password is stored in the parent. 2600 UserInfo parent = getProfileParent(userHandle); 2601 int id = (parent == null) ? userHandle : parent.id; 2602 DevicePolicyData policy = getUserDataUnchecked(id); 2603 2604 return policy.mFailedPasswordAttempts; 2605 } 2606 } 2607 2608 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) { 2609 if (!mHasFeature) { 2610 return; 2611 } 2612 Preconditions.checkNotNull(who, "ComponentName is null"); 2613 final int userHandle = UserHandle.getCallingUserId(); 2614 synchronized (this) { 2615 // This API can only be called by an active device admin, 2616 // so try to retrieve it to check that the caller is one. 2617 getActiveAdminForCallerLocked(who, 2618 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 2619 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2620 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2621 if (ap.maximumFailedPasswordsForWipe != num) { 2622 ap.maximumFailedPasswordsForWipe = num; 2623 saveSettingsLocked(userHandle); 2624 } 2625 } 2626 } 2627 2628 @Override 2629 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 2630 if (!mHasFeature) { 2631 return 0; 2632 } 2633 enforceCrossUserPermission(userHandle); 2634 synchronized (this) { 2635 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 2636 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 2637 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 2638 } 2639 } 2640 2641 @Override 2642 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle) { 2643 if (!mHasFeature) { 2644 return UserHandle.USER_NULL; 2645 } 2646 enforceCrossUserPermission(userHandle); 2647 synchronized (this) { 2648 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 2649 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 2650 } 2651 } 2652 2653 /** 2654 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 2655 * profiles that are visible from this user. If the policy for the primary and any other profile 2656 * are equal, it returns the admin for the primary profile. 2657 * Returns {@code null} if none of them have that policy set. 2658 */ 2659 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 2660 int count = 0; 2661 ActiveAdmin strictestAdmin = null; 2662 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 2663 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2664 for (ActiveAdmin admin : policy.mAdminList) { 2665 if (admin.maximumFailedPasswordsForWipe == 2666 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 2667 continue; // No max number of failed passwords policy set for this profile. 2668 } 2669 2670 // We always favor the primary profile if several profiles have the same value set. 2671 if (count == 0 || 2672 count > admin.maximumFailedPasswordsForWipe || 2673 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 2674 count = admin.maximumFailedPasswordsForWipe; 2675 strictestAdmin = admin; 2676 } 2677 } 2678 } 2679 return strictestAdmin; 2680 } 2681 2682 public boolean resetPassword(String passwordOrNull, int flags) { 2683 if (!mHasFeature) { 2684 return false; 2685 } 2686 final int userHandle = UserHandle.getCallingUserId(); 2687 enforceNotManagedProfile(userHandle, "reset the password"); 2688 2689 String password = passwordOrNull != null ? passwordOrNull : ""; 2690 2691 int quality; 2692 synchronized (this) { 2693 // This api can only be called by an active device admin, 2694 // so try to retrieve it to check that the caller is one. 2695 getActiveAdminForCallerLocked(null, 2696 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 2697 quality = getPasswordQuality(null, userHandle); 2698 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 2699 int realQuality = LockPatternUtils.computePasswordQuality(password); 2700 if (realQuality < quality 2701 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2702 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 2703 + Integer.toHexString(realQuality) 2704 + " does not meet required quality 0x" 2705 + Integer.toHexString(quality)); 2706 return false; 2707 } 2708 quality = Math.max(realQuality, quality); 2709 } 2710 int length = getPasswordMinimumLength(null, userHandle); 2711 if (password.length() < length) { 2712 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 2713 + " does not meet required length " + length); 2714 return false; 2715 } 2716 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2717 int letters = 0; 2718 int uppercase = 0; 2719 int lowercase = 0; 2720 int numbers = 0; 2721 int symbols = 0; 2722 int nonletter = 0; 2723 for (int i = 0; i < password.length(); i++) { 2724 char c = password.charAt(i); 2725 if (c >= 'A' && c <= 'Z') { 2726 letters++; 2727 uppercase++; 2728 } else if (c >= 'a' && c <= 'z') { 2729 letters++; 2730 lowercase++; 2731 } else if (c >= '0' && c <= '9') { 2732 numbers++; 2733 nonletter++; 2734 } else { 2735 symbols++; 2736 nonletter++; 2737 } 2738 } 2739 int neededLetters = getPasswordMinimumLetters(null, userHandle); 2740 if(letters < neededLetters) { 2741 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 2742 + " does not meet required number of letters " + neededLetters); 2743 return false; 2744 } 2745 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 2746 if (numbers < neededNumbers) { 2747 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 2748 + " does not meet required number of numerical digits " 2749 + neededNumbers); 2750 return false; 2751 } 2752 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 2753 if (lowercase < neededLowerCase) { 2754 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 2755 + " does not meet required number of lowercase letters " 2756 + neededLowerCase); 2757 return false; 2758 } 2759 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 2760 if (uppercase < neededUpperCase) { 2761 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 2762 + " does not meet required number of uppercase letters " 2763 + neededUpperCase); 2764 return false; 2765 } 2766 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 2767 if (symbols < neededSymbols) { 2768 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 2769 + " does not meet required number of special symbols " + neededSymbols); 2770 return false; 2771 } 2772 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 2773 if (nonletter < neededNonLetter) { 2774 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 2775 + " does not meet required number of non-letter characters " 2776 + neededNonLetter); 2777 return false; 2778 } 2779 } 2780 } 2781 2782 int callingUid = Binder.getCallingUid(); 2783 DevicePolicyData policy = getUserData(userHandle); 2784 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 2785 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 2786 return false; 2787 } 2788 2789 // Don't do this with the lock held, because it is going to call 2790 // back in to the service. 2791 long ident = Binder.clearCallingIdentity(); 2792 try { 2793 LockPatternUtils utils = new LockPatternUtils(mContext); 2794 if (!TextUtils.isEmpty(password)) { 2795 utils.saveLockPassword(password, quality, userHandle); 2796 } else { 2797 utils.clearLock(userHandle); 2798 } 2799 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 2800 if (requireEntry) { 2801 utils.requireCredentialEntry(UserHandle.USER_ALL); 2802 } 2803 synchronized (this) { 2804 int newOwner = requireEntry ? callingUid : -1; 2805 if (policy.mPasswordOwner != newOwner) { 2806 policy.mPasswordOwner = newOwner; 2807 saveSettingsLocked(userHandle); 2808 } 2809 } 2810 } finally { 2811 Binder.restoreCallingIdentity(ident); 2812 } 2813 2814 return true; 2815 } 2816 2817 public void setMaximumTimeToLock(ComponentName who, long timeMs) { 2818 if (!mHasFeature) { 2819 return; 2820 } 2821 Preconditions.checkNotNull(who, "ComponentName is null"); 2822 final int userHandle = UserHandle.getCallingUserId(); 2823 synchronized (this) { 2824 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2825 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2826 if (ap.maximumTimeToUnlock != timeMs) { 2827 ap.maximumTimeToUnlock = timeMs; 2828 saveSettingsLocked(userHandle); 2829 updateMaximumTimeToLockLocked(getUserData(userHandle)); 2830 } 2831 } 2832 } 2833 2834 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 2835 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 2836 if (policy.mLastMaximumTimeToLock == timeMs) { 2837 return; 2838 } 2839 2840 long ident = Binder.clearCallingIdentity(); 2841 try { 2842 if (timeMs <= 0) { 2843 timeMs = Integer.MAX_VALUE; 2844 } else { 2845 // Make sure KEEP_SCREEN_ON is disabled, since that 2846 // would allow bypassing of the maximum time to lock. 2847 Settings.Global.putInt(mContext.getContentResolver(), 2848 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 2849 } 2850 2851 policy.mLastMaximumTimeToLock = timeMs; 2852 mPowerManagerInternal.setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 2853 } finally { 2854 Binder.restoreCallingIdentity(ident); 2855 } 2856 } 2857 2858 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 2859 if (!mHasFeature) { 2860 return 0; 2861 } 2862 enforceCrossUserPermission(userHandle); 2863 synchronized (this) { 2864 long time = 0; 2865 2866 if (who != null) { 2867 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2868 return admin != null ? admin.maximumTimeToUnlock : time; 2869 } 2870 2871 // Return strictest policy for this user and profiles that are visible from this user. 2872 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2873 for (UserInfo userInfo : profiles) { 2874 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2875 final int N = policy.mAdminList.size(); 2876 for (int i=0; i<N; i++) { 2877 ActiveAdmin admin = policy.mAdminList.get(i); 2878 if (time == 0) { 2879 time = admin.maximumTimeToUnlock; 2880 } else if (admin.maximumTimeToUnlock != 0 2881 && time > admin.maximumTimeToUnlock) { 2882 time = admin.maximumTimeToUnlock; 2883 } 2884 } 2885 } 2886 return time; 2887 } 2888 } 2889 2890 public void lockNow() { 2891 if (!mHasFeature) { 2892 return; 2893 } 2894 synchronized (this) { 2895 // This API can only be called by an active device admin, 2896 // so try to retrieve it to check that the caller is one. 2897 getActiveAdminForCallerLocked(null, 2898 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2899 lockNowUnchecked(); 2900 } 2901 } 2902 2903 private void lockNowUnchecked() { 2904 long ident = Binder.clearCallingIdentity(); 2905 try { 2906 // Power off the display 2907 mPowerManager.goToSleep(SystemClock.uptimeMillis(), 2908 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 2909 // Ensure the device is locked 2910 new LockPatternUtils(mContext).requireCredentialEntry(UserHandle.USER_ALL); 2911 getWindowManager().lockNow(null); 2912 } catch (RemoteException e) { 2913 } finally { 2914 Binder.restoreCallingIdentity(ident); 2915 } 2916 } 2917 2918 private boolean isExtStorageEncrypted() { 2919 String state = SystemProperties.get("vold.decrypt"); 2920 return !"".equals(state); 2921 } 2922 2923 @Override 2924 public void enforceCanManageCaCerts(ComponentName who) { 2925 if (who == null) { 2926 if (!isCallerDelegatedCertInstaller()) { 2927 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 2928 } 2929 } else { 2930 synchronized (this) { 2931 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2932 } 2933 } 2934 } 2935 2936 private boolean isCallerDelegatedCertInstaller() { 2937 final int callingUid = Binder.getCallingUid(); 2938 final int userHandle = UserHandle.getUserId(callingUid); 2939 synchronized (this) { 2940 final DevicePolicyData policy = getUserData(userHandle); 2941 if (policy.mDelegatedCertInstallerPackage == null) { 2942 return false; 2943 } 2944 2945 try { 2946 int uid = mContext.getPackageManager().getPackageUid( 2947 policy.mDelegatedCertInstallerPackage, userHandle); 2948 return uid == callingUid; 2949 } catch (NameNotFoundException e) { 2950 return false; 2951 } 2952 } 2953 } 2954 2955 @Override 2956 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 2957 enforceCanManageCaCerts(admin); 2958 2959 byte[] pemCert; 2960 try { 2961 X509Certificate cert = parseCert(certBuffer); 2962 pemCert = Credentials.convertToPem(cert); 2963 } catch (CertificateException ce) { 2964 Log.e(LOG_TAG, "Problem converting cert", ce); 2965 return false; 2966 } catch (IOException ioe) { 2967 Log.e(LOG_TAG, "Problem reading cert", ioe); 2968 return false; 2969 } 2970 2971 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2972 final long id = Binder.clearCallingIdentity(); 2973 try { 2974 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2975 try { 2976 keyChainConnection.getService().installCaCertificate(pemCert); 2977 return true; 2978 } catch (RemoteException e) { 2979 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 2980 } finally { 2981 keyChainConnection.close(); 2982 } 2983 } catch (InterruptedException e1) { 2984 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 2985 Thread.currentThread().interrupt(); 2986 } finally { 2987 Binder.restoreCallingIdentity(id); 2988 } 2989 return false; 2990 } 2991 2992 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 2993 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 2994 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 2995 certBuffer)); 2996 } 2997 2998 @Override 2999 public void uninstallCaCert(ComponentName admin, String alias) { 3000 enforceCanManageCaCerts(admin); 3001 3002 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3003 final long id = Binder.clearCallingIdentity(); 3004 try { 3005 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3006 try { 3007 keyChainConnection.getService().deleteCaCertificate(alias); 3008 } catch (RemoteException e) { 3009 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 3010 } finally { 3011 keyChainConnection.close(); 3012 } 3013 } catch (InterruptedException ie) { 3014 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 3015 Thread.currentThread().interrupt(); 3016 } finally { 3017 Binder.restoreCallingIdentity(id); 3018 } 3019 } 3020 3021 @Override 3022 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 3023 Preconditions.checkNotNull(who, "ComponentName is null"); 3024 synchronized (this) { 3025 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3026 } 3027 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 3028 final long id = Binder.clearCallingIdentity(); 3029 try { 3030 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 3031 try { 3032 IKeyChainService keyChain = keyChainConnection.getService(); 3033 return keyChain.installKeyPair(privKey, cert, alias); 3034 } catch (RemoteException e) { 3035 Log.e(LOG_TAG, "Installing certificate", e); 3036 } finally { 3037 keyChainConnection.close(); 3038 } 3039 } catch (InterruptedException e) { 3040 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 3041 Thread.currentThread().interrupt(); 3042 } finally { 3043 Binder.restoreCallingIdentity(id); 3044 } 3045 return false; 3046 } 3047 3048 @Override 3049 public void choosePrivateKeyAlias(final int uid, final String host, int port, final String url, 3050 final String alias, final IBinder response) { 3051 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 3052 if (UserHandle.getAppId(Binder.getCallingUid()) != Process.SYSTEM_UID) { 3053 return; 3054 } 3055 3056 final UserHandle caller = Binder.getCallingUserHandle(); 3057 final ComponentName profileOwner = getProfileOwner(caller.getIdentifier()); 3058 3059 if (profileOwner == null) { 3060 sendPrivateKeyAliasResponse(null, response); 3061 return; 3062 } 3063 3064 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 3065 intent.setComponent(profileOwner); 3066 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 3067 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_HOST, host); 3068 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_PORT, port); 3069 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URL, url); 3070 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 3071 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 3072 3073 final long id = Binder.clearCallingIdentity(); 3074 try { 3075 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 3076 @Override 3077 public void onReceive(Context context, Intent intent) { 3078 final String chosenAlias = getResultData(); 3079 sendPrivateKeyAliasResponse(chosenAlias, response); 3080 } 3081 }, null, Activity.RESULT_OK, null, null); 3082 } finally { 3083 Binder.restoreCallingIdentity(id); 3084 } 3085 } 3086 3087 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 3088 final IKeyChainAliasCallback keyChainAliasResponse = 3089 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 3090 new AsyncTask<Void, Void, Void>() { 3091 @Override 3092 protected Void doInBackground(Void... unused) { 3093 try { 3094 keyChainAliasResponse.alias(alias); 3095 } catch (Exception e) { 3096 // Catch everything (not just RemoteException): caller could throw a 3097 // RuntimeException back across processes. 3098 Log.e(LOG_TAG, "error while responding to callback", e); 3099 } 3100 return null; 3101 } 3102 }.execute(); 3103 } 3104 3105 @Override 3106 public void setCertInstallerPackage(ComponentName who, String installerPackage) 3107 throws SecurityException { 3108 int userHandle = UserHandle.getCallingUserId(); 3109 synchronized (this) { 3110 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3111 DevicePolicyData policy = getUserData(userHandle); 3112 policy.mDelegatedCertInstallerPackage = installerPackage; 3113 saveSettingsLocked(userHandle); 3114 } 3115 } 3116 3117 @Override 3118 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 3119 int userHandle = UserHandle.getCallingUserId(); 3120 synchronized (this) { 3121 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3122 DevicePolicyData policy = getUserData(userHandle); 3123 return policy.mDelegatedCertInstallerPackage; 3124 } 3125 } 3126 3127 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 3128 // TODO: wipe all public volumes on device 3129 3130 // If the SD card is encrypted and non-removable, we have to force a wipe. 3131 boolean forceExtWipe = !Environment.isExternalStorageRemovable() && isExtStorageEncrypted(); 3132 3133 // Note: we can only do the wipe via ExternalStorageFormatter if the volume is not emulated. 3134 if ((forceExtWipe || wipeExtRequested) && !Environment.isExternalStorageEmulated()) { 3135 Intent intent = new Intent(ExternalStorageFormatter.FORMAT_AND_FACTORY_RESET); 3136 intent.putExtra(ExternalStorageFormatter.EXTRA_ALWAYS_RESET, true); 3137 intent.putExtra(Intent.EXTRA_REASON, reason); 3138 intent.setComponent(ExternalStorageFormatter.COMPONENT_NAME); 3139 mWakeLock.acquire(10000); 3140 mContext.startService(intent); 3141 } else { 3142 try { 3143 RecoverySystem.rebootWipeUserData(mContext, reason); 3144 } catch (IOException | SecurityException e) { 3145 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 3146 } 3147 } 3148 } 3149 3150 @Override 3151 public void wipeData(int flags, final int userHandle) { 3152 if (!mHasFeature) { 3153 return; 3154 } 3155 enforceCrossUserPermission(userHandle); 3156 synchronized (this) { 3157 // This API can only be called by an active device admin, 3158 // so try to retrieve it to check that the caller is one. 3159 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 3160 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3161 3162 final String source; 3163 final ComponentName cname = admin.info.getComponent(); 3164 if (cname != null) { 3165 source = cname.flattenToShortString(); 3166 } else { 3167 source = admin.info.getPackageName(); 3168 } 3169 3170 long ident = Binder.clearCallingIdentity(); 3171 try { 3172 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 3173 boolean ownsInitialization = isDeviceInitializer(admin.info.getPackageName()) 3174 && !hasUserSetupCompleted(userHandle); 3175 if (userHandle != UserHandle.USER_OWNER 3176 || !(isDeviceOwner(admin.info.getPackageName()) 3177 || ownsInitialization)) { 3178 throw new SecurityException( 3179 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 3180 } 3181 PersistentDataBlockManager manager = (PersistentDataBlockManager) 3182 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 3183 if (manager != null) { 3184 manager.wipe(); 3185 } 3186 } 3187 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 3188 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 3189 "DevicePolicyManager.wipeData() from " + source); 3190 } finally { 3191 Binder.restoreCallingIdentity(ident); 3192 } 3193 } 3194 } 3195 3196 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 3197 if (userHandle == UserHandle.USER_OWNER) { 3198 wipeDataLocked(wipeExtRequested, reason); 3199 } else { 3200 mHandler.post(new Runnable() { 3201 public void run() { 3202 try { 3203 IActivityManager am = ActivityManagerNative.getDefault(); 3204 if (am.getCurrentUser().id == userHandle) { 3205 am.switchUser(UserHandle.USER_OWNER); 3206 } 3207 if (!mUserManager.removeUser(userHandle)) { 3208 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 3209 } 3210 } catch (RemoteException re) { 3211 // Shouldn't happen 3212 } 3213 } 3214 }); 3215 } 3216 } 3217 3218 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 3219 if (!mHasFeature) { 3220 return; 3221 } 3222 enforceCrossUserPermission(userHandle); 3223 mContext.enforceCallingOrSelfPermission( 3224 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3225 3226 synchronized (this) { 3227 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 3228 if (admin == null) { 3229 try { 3230 result.sendResult(null); 3231 } catch (RemoteException e) { 3232 } 3233 return; 3234 } 3235 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3236 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3237 intent.setComponent(admin.info.getComponent()); 3238 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3239 null, new BroadcastReceiver() { 3240 @Override 3241 public void onReceive(Context context, Intent intent) { 3242 try { 3243 result.sendResult(getResultExtras(false)); 3244 } catch (RemoteException e) { 3245 } 3246 } 3247 }, null, Activity.RESULT_OK, null, null); 3248 } 3249 } 3250 3251 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3252 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3253 if (!mHasFeature) { 3254 return; 3255 } 3256 enforceCrossUserPermission(userHandle); 3257 enforceNotManagedProfile(userHandle, "set the active password"); 3258 3259 mContext.enforceCallingOrSelfPermission( 3260 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3261 DevicePolicyData p = getUserData(userHandle); 3262 3263 validateQualityConstant(quality); 3264 3265 synchronized (this) { 3266 if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length 3267 || p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters 3268 || p.mActivePasswordUpperCase != uppercase 3269 || p.mActivePasswordLowerCase != lowercase 3270 || p.mActivePasswordNumeric != numbers 3271 || p.mActivePasswordSymbols != symbols 3272 || p.mActivePasswordNonLetter != nonletter) { 3273 long ident = Binder.clearCallingIdentity(); 3274 try { 3275 p.mActivePasswordQuality = quality; 3276 p.mActivePasswordLength = length; 3277 p.mActivePasswordLetters = letters; 3278 p.mActivePasswordLowerCase = lowercase; 3279 p.mActivePasswordUpperCase = uppercase; 3280 p.mActivePasswordNumeric = numbers; 3281 p.mActivePasswordSymbols = symbols; 3282 p.mActivePasswordNonLetter = nonletter; 3283 p.mFailedPasswordAttempts = 0; 3284 saveSettingsLocked(userHandle); 3285 updatePasswordExpirationsLocked(userHandle); 3286 setExpirationAlarmCheckLocked(mContext, p); 3287 sendAdminCommandToSelfAndProfilesLocked( 3288 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3289 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3290 } finally { 3291 Binder.restoreCallingIdentity(ident); 3292 } 3293 } 3294 } 3295 } 3296 3297 /** 3298 * Called any time the device password is updated. Resets all password expiration clocks. 3299 */ 3300 private void updatePasswordExpirationsLocked(int userHandle) { 3301 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3302 for (UserInfo userInfo : profiles) { 3303 int profileId = userInfo.id; 3304 DevicePolicyData policy = getUserDataUnchecked(profileId); 3305 final int N = policy.mAdminList.size(); 3306 if (N > 0) { 3307 for (int i=0; i<N; i++) { 3308 ActiveAdmin admin = policy.mAdminList.get(i); 3309 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3310 long timeout = admin.passwordExpirationTimeout; 3311 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3312 admin.passwordExpirationDate = expiration; 3313 } 3314 } 3315 } 3316 saveSettingsLocked(profileId); 3317 } 3318 } 3319 3320 public void reportFailedPasswordAttempt(int userHandle) { 3321 enforceCrossUserPermission(userHandle); 3322 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3323 mContext.enforceCallingOrSelfPermission( 3324 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3325 3326 long ident = Binder.clearCallingIdentity(); 3327 try { 3328 boolean wipeData = false; 3329 int identifier = 0; 3330 synchronized (this) { 3331 DevicePolicyData policy = getUserData(userHandle); 3332 policy.mFailedPasswordAttempts++; 3333 saveSettingsLocked(userHandle); 3334 if (mHasFeature) { 3335 ActiveAdmin strictestAdmin = 3336 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3337 int max = strictestAdmin != null 3338 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3339 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 3340 // Wipe the user/profile associated with the policy that was violated. This 3341 // is not necessarily calling user: if the policy that fired was from a 3342 // managed profile rather than the main user profile, we wipe former only. 3343 wipeData = true; 3344 identifier = strictestAdmin.getUserHandle().getIdentifier(); 3345 } 3346 sendAdminCommandToSelfAndProfilesLocked( 3347 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 3348 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3349 } 3350 } 3351 if (wipeData) { 3352 // Call without holding lock. 3353 wipeDeviceOrUserLocked(false, identifier, 3354 "reportFailedPasswordAttempt()"); 3355 } 3356 } finally { 3357 Binder.restoreCallingIdentity(ident); 3358 } 3359 } 3360 3361 public void reportSuccessfulPasswordAttempt(int userHandle) { 3362 enforceCrossUserPermission(userHandle); 3363 mContext.enforceCallingOrSelfPermission( 3364 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3365 3366 synchronized (this) { 3367 DevicePolicyData policy = getUserData(userHandle); 3368 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 3369 long ident = Binder.clearCallingIdentity(); 3370 try { 3371 policy.mFailedPasswordAttempts = 0; 3372 policy.mPasswordOwner = -1; 3373 saveSettingsLocked(userHandle); 3374 if (mHasFeature) { 3375 sendAdminCommandToSelfAndProfilesLocked( 3376 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 3377 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3378 } 3379 } finally { 3380 Binder.restoreCallingIdentity(ident); 3381 } 3382 } 3383 } 3384 } 3385 3386 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 3387 String exclusionList) { 3388 if (!mHasFeature) { 3389 return null; 3390 } 3391 synchronized(this) { 3392 Preconditions.checkNotNull(who, "ComponentName is null"); 3393 3394 // Only check if owner has set global proxy. We don't allow other users to set it. 3395 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3396 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3397 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 3398 3399 // Scan through active admins and find if anyone has already 3400 // set the global proxy. 3401 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 3402 for (ComponentName component : compSet) { 3403 ActiveAdmin ap = policy.mAdminMap.get(component); 3404 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 3405 // Another admin already sets the global proxy 3406 // Return it to the caller. 3407 return component; 3408 } 3409 } 3410 3411 // If the user is not the owner, don't set the global proxy. Fail silently. 3412 if (UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 3413 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 3414 + UserHandle.getCallingUserId() + " is not permitted."); 3415 return null; 3416 } 3417 if (proxySpec == null) { 3418 admin.specifiesGlobalProxy = false; 3419 admin.globalProxySpec = null; 3420 admin.globalProxyExclusionList = null; 3421 } else { 3422 3423 admin.specifiesGlobalProxy = true; 3424 admin.globalProxySpec = proxySpec; 3425 admin.globalProxyExclusionList = exclusionList; 3426 } 3427 3428 // Reset the global proxy accordingly 3429 // Do this using system permissions, as apps cannot write to secure settings 3430 long origId = Binder.clearCallingIdentity(); 3431 try { 3432 resetGlobalProxyLocked(policy); 3433 } finally { 3434 Binder.restoreCallingIdentity(origId); 3435 } 3436 return null; 3437 } 3438 } 3439 3440 public ComponentName getGlobalProxyAdmin(int userHandle) { 3441 if (!mHasFeature) { 3442 return null; 3443 } 3444 enforceCrossUserPermission(userHandle); 3445 synchronized(this) { 3446 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3447 // Scan through active admins and find if anyone has already 3448 // set the global proxy. 3449 final int N = policy.mAdminList.size(); 3450 for (int i = 0; i < N; i++) { 3451 ActiveAdmin ap = policy.mAdminList.get(i); 3452 if (ap.specifiesGlobalProxy) { 3453 // Device admin sets the global proxy 3454 // Return it to the caller. 3455 return ap.info.getComponent(); 3456 } 3457 } 3458 } 3459 // No device admin sets the global proxy. 3460 return null; 3461 } 3462 3463 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 3464 synchronized (this) { 3465 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3466 } 3467 long token = Binder.clearCallingIdentity(); 3468 try { 3469 ConnectivityManager connectivityManager = (ConnectivityManager) 3470 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 3471 connectivityManager.setGlobalProxy(proxyInfo); 3472 } finally { 3473 Binder.restoreCallingIdentity(token); 3474 } 3475 } 3476 3477 private void resetGlobalProxyLocked(DevicePolicyData policy) { 3478 final int N = policy.mAdminList.size(); 3479 for (int i = 0; i < N; i++) { 3480 ActiveAdmin ap = policy.mAdminList.get(i); 3481 if (ap.specifiesGlobalProxy) { 3482 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 3483 return; 3484 } 3485 } 3486 // No device admins defining global proxies - reset global proxy settings to none 3487 saveGlobalProxyLocked(null, null); 3488 } 3489 3490 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 3491 if (exclusionList == null) { 3492 exclusionList = ""; 3493 } 3494 if (proxySpec == null) { 3495 proxySpec = ""; 3496 } 3497 // Remove white spaces 3498 proxySpec = proxySpec.trim(); 3499 String data[] = proxySpec.split(":"); 3500 int proxyPort = 8080; 3501 if (data.length > 1) { 3502 try { 3503 proxyPort = Integer.parseInt(data[1]); 3504 } catch (NumberFormatException e) {} 3505 } 3506 exclusionList = exclusionList.trim(); 3507 ContentResolver res = mContext.getContentResolver(); 3508 3509 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 3510 if (!proxyProperties.isValid()) { 3511 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3512 return; 3513 } 3514 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 3515 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 3516 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 3517 exclusionList); 3518 } 3519 3520 /** 3521 * Set the storage encryption request for a single admin. Returns the new total request 3522 * status (for all admins). 3523 */ 3524 public int setStorageEncryption(ComponentName who, boolean encrypt) { 3525 if (!mHasFeature) { 3526 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3527 } 3528 Preconditions.checkNotNull(who, "ComponentName is null"); 3529 final int userHandle = UserHandle.getCallingUserId(); 3530 synchronized (this) { 3531 // Check for permissions 3532 // Only owner can set storage encryption 3533 if (userHandle != UserHandle.USER_OWNER 3534 || UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 3535 Slog.w(LOG_TAG, "Only owner is allowed to set storage encryption. User " 3536 + UserHandle.getCallingUserId() + " is not permitted."); 3537 return 0; 3538 } 3539 3540 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3541 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 3542 3543 // Quick exit: If the filesystem does not support encryption, we can exit early. 3544 if (!isEncryptionSupported()) { 3545 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3546 } 3547 3548 // (1) Record the value for the admin so it's sticky 3549 if (ap.encryptionRequested != encrypt) { 3550 ap.encryptionRequested = encrypt; 3551 saveSettingsLocked(userHandle); 3552 } 3553 3554 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3555 // (2) Compute "max" for all admins 3556 boolean newRequested = false; 3557 final int N = policy.mAdminList.size(); 3558 for (int i = 0; i < N; i++) { 3559 newRequested |= policy.mAdminList.get(i).encryptionRequested; 3560 } 3561 3562 // Notify OS of new request 3563 setEncryptionRequested(newRequested); 3564 3565 // Return the new global request status 3566 return newRequested 3567 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3568 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3569 } 3570 } 3571 3572 /** 3573 * Get the current storage encryption request status for a given admin, or aggregate of all 3574 * active admins. 3575 */ 3576 public boolean getStorageEncryption(ComponentName who, int userHandle) { 3577 if (!mHasFeature) { 3578 return false; 3579 } 3580 enforceCrossUserPermission(userHandle); 3581 synchronized (this) { 3582 // Check for permissions if a particular caller is specified 3583 if (who != null) { 3584 // When checking for a single caller, status is based on caller's request 3585 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 3586 return ap != null ? ap.encryptionRequested : false; 3587 } 3588 3589 // If no particular caller is specified, return the aggregate set of requests. 3590 // This is short circuited by returning true on the first hit. 3591 DevicePolicyData policy = getUserData(userHandle); 3592 final int N = policy.mAdminList.size(); 3593 for (int i = 0; i < N; i++) { 3594 if (policy.mAdminList.get(i).encryptionRequested) { 3595 return true; 3596 } 3597 } 3598 return false; 3599 } 3600 } 3601 3602 /** 3603 * Get the current encryption status of the device. 3604 */ 3605 public int getStorageEncryptionStatus(int userHandle) { 3606 if (!mHasFeature) { 3607 // Ok to return current status. 3608 } 3609 enforceCrossUserPermission(userHandle); 3610 return getEncryptionStatus(); 3611 } 3612 3613 /** 3614 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 3615 */ 3616 private boolean isEncryptionSupported() { 3617 // Note, this can be implemented as 3618 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3619 // But is provided as a separate internal method if there's a faster way to do a 3620 // simple check for supported-or-not. 3621 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3622 } 3623 3624 /** 3625 * Hook to low-levels: Reporting the current status of encryption. 3626 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 3627 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 3628 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, or 3629 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 3630 */ 3631 private int getEncryptionStatus() { 3632 String status = SystemProperties.get("ro.crypto.state", "unsupported"); 3633 if ("encrypted".equalsIgnoreCase(status)) { 3634 final long token = Binder.clearCallingIdentity(); 3635 try { 3636 return LockPatternUtils.isDeviceEncrypted() 3637 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3638 : DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 3639 } finally { 3640 Binder.restoreCallingIdentity(token); 3641 } 3642 } else if ("unencrypted".equalsIgnoreCase(status)) { 3643 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3644 } else { 3645 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3646 } 3647 } 3648 3649 /** 3650 * Hook to low-levels: If needed, record the new admin setting for encryption. 3651 */ 3652 private void setEncryptionRequested(boolean encrypt) { 3653 } 3654 3655 3656 /** 3657 * Set whether the screen capture is disabled for the user managed by the specified admin. 3658 */ 3659 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 3660 if (!mHasFeature) { 3661 return; 3662 } 3663 Preconditions.checkNotNull(who, "ComponentName is null"); 3664 final int userHandle = UserHandle.getCallingUserId(); 3665 synchronized (this) { 3666 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3667 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3668 if (ap.disableScreenCapture != disabled) { 3669 ap.disableScreenCapture = disabled; 3670 saveSettingsLocked(userHandle); 3671 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 3672 } 3673 } 3674 } 3675 3676 /** 3677 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 3678 * active admin (if given admin is null). 3679 */ 3680 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 3681 if (!mHasFeature) { 3682 return false; 3683 } 3684 synchronized (this) { 3685 if (who != null) { 3686 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3687 return (admin != null) ? admin.disableScreenCapture : false; 3688 } 3689 3690 DevicePolicyData policy = getUserData(userHandle); 3691 final int N = policy.mAdminList.size(); 3692 for (int i = 0; i < N; i++) { 3693 ActiveAdmin admin = policy.mAdminList.get(i); 3694 if (admin.disableScreenCapture) { 3695 return true; 3696 } 3697 } 3698 return false; 3699 } 3700 } 3701 3702 private void updateScreenCaptureDisabledInWindowManager(int userHandle, boolean disabled) { 3703 long ident = Binder.clearCallingIdentity(); 3704 try { 3705 getWindowManager().setScreenCaptureDisabled(userHandle, disabled); 3706 } catch (RemoteException e) { 3707 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 3708 } finally { 3709 Binder.restoreCallingIdentity(ident); 3710 } 3711 } 3712 3713 /** 3714 * Set whether auto time is required by the specified admin (must be device owner). 3715 */ 3716 public void setAutoTimeRequired(ComponentName who, boolean required) { 3717 if (!mHasFeature) { 3718 return; 3719 } 3720 Preconditions.checkNotNull(who, "ComponentName is null"); 3721 final int userHandle = UserHandle.getCallingUserId(); 3722 synchronized (this) { 3723 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3724 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3725 if (admin.requireAutoTime != required) { 3726 admin.requireAutoTime = required; 3727 saveSettingsLocked(userHandle); 3728 } 3729 } 3730 3731 // Turn AUTO_TIME on in settings if it is required 3732 if (required) { 3733 long ident = Binder.clearCallingIdentity(); 3734 try { 3735 Settings.Global.putInt(mContext.getContentResolver(), 3736 Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 3737 } finally { 3738 Binder.restoreCallingIdentity(ident); 3739 } 3740 } 3741 } 3742 3743 /** 3744 * Returns whether or not auto time is required by the device owner. 3745 */ 3746 public boolean getAutoTimeRequired() { 3747 if (!mHasFeature) { 3748 return false; 3749 } 3750 synchronized (this) { 3751 ActiveAdmin deviceOwner = getDeviceOwnerAdmin(); 3752 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 3753 } 3754 } 3755 3756 /** 3757 * The system property used to share the state of the camera. The native camera service 3758 * is expected to read this property and act accordingly. The userId should be appended 3759 * to this key. 3760 */ 3761 public static final String SYSTEM_PROP_DISABLE_CAMERA_PREFIX = "sys.secpolicy.camera.off_"; 3762 3763 /** 3764 * Disables all device cameras according to the specified admin. 3765 */ 3766 public void setCameraDisabled(ComponentName who, boolean disabled) { 3767 if (!mHasFeature) { 3768 return; 3769 } 3770 Preconditions.checkNotNull(who, "ComponentName is null"); 3771 final int userHandle = UserHandle.getCallingUserId(); 3772 synchronized (this) { 3773 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3774 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 3775 if (ap.disableCamera != disabled) { 3776 ap.disableCamera = disabled; 3777 saveSettingsLocked(userHandle); 3778 } 3779 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 3780 } 3781 } 3782 3783 /** 3784 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 3785 * active admins. 3786 */ 3787 public boolean getCameraDisabled(ComponentName who, int userHandle) { 3788 if (!mHasFeature) { 3789 return false; 3790 } 3791 synchronized (this) { 3792 if (who != null) { 3793 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3794 return (admin != null) ? admin.disableCamera : false; 3795 } 3796 3797 DevicePolicyData policy = getUserData(userHandle); 3798 // Determine whether or not the device camera is disabled for any active admins. 3799 final int N = policy.mAdminList.size(); 3800 for (int i = 0; i < N; i++) { 3801 ActiveAdmin admin = policy.mAdminList.get(i); 3802 if (admin.disableCamera) { 3803 return true; 3804 } 3805 } 3806 return false; 3807 } 3808 } 3809 3810 /** 3811 * Selectively disable keyguard features. 3812 */ 3813 public void setKeyguardDisabledFeatures(ComponentName who, int which) { 3814 if (!mHasFeature) { 3815 return; 3816 } 3817 Preconditions.checkNotNull(who, "ComponentName is null"); 3818 final int userHandle = UserHandle.getCallingUserId(); 3819 enforceNotManagedProfile(userHandle, "disable keyguard features"); 3820 synchronized (this) { 3821 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3822 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 3823 if (ap.disabledKeyguardFeatures != which) { 3824 ap.disabledKeyguardFeatures = which; 3825 saveSettingsLocked(userHandle); 3826 } 3827 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 3828 } 3829 } 3830 3831 /** 3832 * Gets the disabled state for features in keyguard for the given admin, 3833 * or the aggregate of all active admins if who is null. 3834 */ 3835 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 3836 if (!mHasFeature) { 3837 return 0; 3838 } 3839 enforceCrossUserPermission(userHandle); 3840 synchronized (this) { 3841 if (who != null) { 3842 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3843 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 3844 } 3845 3846 // Determine which keyguard features are disabled for any active admins. 3847 DevicePolicyData policy = getUserData(userHandle); 3848 final int N = policy.mAdminList.size(); 3849 int which = 0; 3850 for (int i = 0; i < N; i++) { 3851 ActiveAdmin admin = policy.mAdminList.get(i); 3852 which |= admin.disabledKeyguardFeatures; 3853 } 3854 return which; 3855 } 3856 } 3857 3858 @Override 3859 public boolean setDeviceOwner(String packageName, String ownerName) { 3860 if (!mHasFeature) { 3861 return false; 3862 } 3863 if (packageName == null 3864 || !DeviceOwner.isInstalled(packageName, mContext.getPackageManager())) { 3865 throw new IllegalArgumentException("Invalid package name " + packageName 3866 + " for device owner"); 3867 } 3868 synchronized (this) { 3869 if (!allowedToSetDeviceOwnerOnDevice()) { 3870 throw new IllegalStateException( 3871 "Trying to set device owner but device is already provisioned."); 3872 } 3873 3874 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3875 throw new IllegalStateException( 3876 "Trying to set device owner but device owner is already set."); 3877 } 3878 3879 // Shutting down backup manager service permanently. 3880 long ident = Binder.clearCallingIdentity(); 3881 try { 3882 IBackupManager ibm = IBackupManager.Stub.asInterface( 3883 ServiceManager.getService(Context.BACKUP_SERVICE)); 3884 ibm.setBackupServiceActive(UserHandle.USER_OWNER, false); 3885 } catch (RemoteException e) { 3886 throw new IllegalStateException("Failed deactivating backup service.", e); 3887 } finally { 3888 Binder.restoreCallingIdentity(ident); 3889 } 3890 3891 if (mDeviceOwner == null) { 3892 // Device owner is not set and does not exist, set it. 3893 mDeviceOwner = DeviceOwner.createWithDeviceOwner(packageName, ownerName); 3894 mDeviceOwner.writeOwnerFile(); 3895 return true; 3896 } else { 3897 // Device owner is not set but a profile owner exists, update Device owner state. 3898 mDeviceOwner.setDeviceOwner(packageName, ownerName); 3899 mDeviceOwner.writeOwnerFile(); 3900 return true; 3901 } 3902 } 3903 } 3904 3905 @Override 3906 public boolean isDeviceOwner(String packageName) { 3907 if (!mHasFeature) { 3908 return false; 3909 } 3910 synchronized (this) { 3911 return mDeviceOwner != null 3912 && mDeviceOwner.hasDeviceOwner() 3913 && mDeviceOwner.getDeviceOwnerPackageName().equals(packageName); 3914 } 3915 } 3916 3917 @Override 3918 public String getDeviceOwner() { 3919 if (!mHasFeature) { 3920 return null; 3921 } 3922 synchronized (this) { 3923 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3924 return mDeviceOwner.getDeviceOwnerPackageName(); 3925 } 3926 } 3927 return null; 3928 } 3929 3930 @Override 3931 public String getDeviceOwnerName() { 3932 if (!mHasFeature) { 3933 return null; 3934 } 3935 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3936 synchronized (this) { 3937 if (mDeviceOwner != null) { 3938 return mDeviceOwner.getDeviceOwnerName(); 3939 } 3940 } 3941 return null; 3942 } 3943 3944 // Returns the active device owner or null if there is no device owner. 3945 private ActiveAdmin getDeviceOwnerAdmin() { 3946 String deviceOwnerPackageName = getDeviceOwner(); 3947 if (deviceOwnerPackageName == null) { 3948 return null; 3949 } 3950 3951 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3952 final int n = policy.mAdminList.size(); 3953 for (int i = 0; i < n; i++) { 3954 ActiveAdmin admin = policy.mAdminList.get(i); 3955 if (deviceOwnerPackageName.equals(admin.info.getPackageName())) { 3956 return admin; 3957 } 3958 } 3959 return null; 3960 } 3961 3962 @Override 3963 public void clearDeviceOwner(String packageName) { 3964 Preconditions.checkNotNull(packageName, "packageName is null"); 3965 try { 3966 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 3967 if (uid != Binder.getCallingUid()) { 3968 throw new SecurityException("Invalid packageName"); 3969 } 3970 } catch (NameNotFoundException e) { 3971 throw new SecurityException(e); 3972 } 3973 if (!isDeviceOwner(packageName)) { 3974 throw new SecurityException("clearDeviceOwner can only be called by the device owner"); 3975 } 3976 synchronized (this) { 3977 long ident = Binder.clearCallingIdentity(); 3978 try { 3979 clearUserRestrictions(new UserHandle(UserHandle.USER_OWNER)); 3980 if (mDeviceOwner != null) { 3981 mDeviceOwner.clearDeviceOwner(); 3982 mDeviceOwner.writeOwnerFile(); 3983 } 3984 } finally { 3985 Binder.restoreCallingIdentity(ident); 3986 } 3987 } 3988 } 3989 3990 @Override 3991 public boolean setDeviceInitializer(ComponentName who, ComponentName initializer, 3992 String ownerName) { 3993 if (!mHasFeature) { 3994 return false; 3995 } 3996 if (initializer == null || !DeviceOwner.isInstalled( 3997 initializer.getPackageName(), mContext.getPackageManager())) { 3998 throw new IllegalArgumentException("Invalid component name " + initializer 3999 + " for device initializer"); 4000 } 4001 synchronized (this) { 4002 enforceCanSetDeviceInitializer(who); 4003 4004 if (mDeviceOwner != null && mDeviceOwner.hasDeviceInitializer()) { 4005 throw new IllegalStateException( 4006 "Trying to set device initializer but device initializer is already set."); 4007 } 4008 4009 if (mDeviceOwner == null) { 4010 // Device owner state does not exist, create it. 4011 mDeviceOwner = DeviceOwner.createWithDeviceInitializer( 4012 initializer, ownerName); 4013 mDeviceOwner.writeOwnerFile(); 4014 return true; 4015 } else { 4016 // Device owner already exists, update it. 4017 mDeviceOwner.setDeviceInitializer(initializer, ownerName); 4018 mDeviceOwner.writeOwnerFile(); 4019 return true; 4020 } 4021 } 4022 } 4023 4024 private void enforceCanSetDeviceInitializer(ComponentName who) { 4025 if (who == null) { 4026 mContext.enforceCallingOrSelfPermission( 4027 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 4028 if (hasUserSetupCompleted(UserHandle.USER_OWNER)) { 4029 throw new IllegalStateException( 4030 "Trying to set device initializer but device is already provisioned."); 4031 } 4032 } else { 4033 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4034 } 4035 } 4036 4037 @Override 4038 public boolean isDeviceInitializer(String packageName) { 4039 if (!mHasFeature) { 4040 return false; 4041 } 4042 synchronized (this) { 4043 return mDeviceOwner != null 4044 && mDeviceOwner.hasDeviceInitializer() 4045 && mDeviceOwner.getDeviceInitializerPackageName().equals(packageName); 4046 } 4047 } 4048 4049 @Override 4050 public String getDeviceInitializer() { 4051 if (!mHasFeature) { 4052 return null; 4053 } 4054 synchronized (this) { 4055 if (mDeviceOwner != null && mDeviceOwner.hasDeviceInitializer()) { 4056 return mDeviceOwner.getDeviceInitializerPackageName(); 4057 } 4058 } 4059 return null; 4060 } 4061 4062 @Override 4063 public ComponentName getDeviceInitializerComponent() { 4064 if (!mHasFeature) { 4065 return null; 4066 } 4067 synchronized (this) { 4068 if (mDeviceOwner != null && mDeviceOwner.hasDeviceInitializer()) { 4069 return mDeviceOwner.getDeviceInitializerComponent(); 4070 } 4071 } 4072 return null; 4073 } 4074 4075 @Override 4076 public void clearDeviceInitializer(ComponentName who) { 4077 if (!mHasFeature) { 4078 return; 4079 } 4080 Preconditions.checkNotNull(who, "ComponentName is null"); 4081 4082 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, UserHandle.getCallingUserId()); 4083 4084 if (admin.getUid() != Binder.getCallingUid()) { 4085 throw new SecurityException("Admin " + who + " is not owned by uid " 4086 + Binder.getCallingUid()); 4087 } 4088 4089 if (!isDeviceInitializer(admin.info.getPackageName()) 4090 && !isDeviceOwner(admin.info.getPackageName())) { 4091 throw new SecurityException( 4092 "clearDeviceInitializer can only be called by the device initializer/owner"); 4093 } 4094 synchronized (this) { 4095 long ident = Binder.clearCallingIdentity(); 4096 try { 4097 if (mDeviceOwner != null) { 4098 mDeviceOwner.clearDeviceInitializer(); 4099 mDeviceOwner.writeOwnerFile(); 4100 } 4101 } finally { 4102 Binder.restoreCallingIdentity(ident); 4103 } 4104 } 4105 } 4106 4107 @Override 4108 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 4109 if (!mHasFeature) { 4110 return false; 4111 } 4112 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4113 4114 UserInfo info = mUserManager.getUserInfo(userHandle); 4115 if (info == null) { 4116 // User doesn't exist. 4117 throw new IllegalArgumentException( 4118 "Attempted to set profile owner for invalid userId: " + userHandle); 4119 } 4120 if (info.isGuest()) { 4121 throw new IllegalStateException("Cannot set a profile owner on a guest"); 4122 } 4123 4124 if (who == null 4125 || !DeviceOwner.isInstalledForUser(who.getPackageName(), userHandle)) { 4126 throw new IllegalArgumentException("Component " + who 4127 + " not installed for userId:" + userHandle); 4128 } 4129 synchronized (this) { 4130 // Only SYSTEM_UID can override the userSetupComplete 4131 if (UserHandle.getAppId(Binder.getCallingUid()) != Process.SYSTEM_UID 4132 && hasUserSetupCompleted(userHandle)) { 4133 throw new IllegalStateException( 4134 "Trying to set profile owner but user is already set-up."); 4135 } 4136 4137 if (mDeviceOwner == null) { 4138 // Device owner state does not exist, create it. 4139 mDeviceOwner = DeviceOwner.createWithProfileOwner(who, ownerName, 4140 userHandle); 4141 mDeviceOwner.writeOwnerFile(); 4142 return true; 4143 } else { 4144 // Device owner already exists, update it. 4145 mDeviceOwner.setProfileOwner(who, ownerName, userHandle); 4146 mDeviceOwner.writeOwnerFile(); 4147 return true; 4148 } 4149 } 4150 } 4151 4152 @Override 4153 public void clearProfileOwner(ComponentName who) { 4154 if (!mHasFeature) { 4155 return; 4156 } 4157 UserHandle callingUser = Binder.getCallingUserHandle(); 4158 // Check if this is the profile owner who is calling 4159 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4160 synchronized (this) { 4161 long ident = Binder.clearCallingIdentity(); 4162 try { 4163 clearUserRestrictions(callingUser); 4164 if (mDeviceOwner != null) { 4165 mDeviceOwner.removeProfileOwner(callingUser.getIdentifier()); 4166 mDeviceOwner.writeOwnerFile(); 4167 } 4168 } finally { 4169 Binder.restoreCallingIdentity(ident); 4170 } 4171 } 4172 } 4173 4174 private void clearUserRestrictions(UserHandle userHandle) { 4175 AudioManager audioManager = 4176 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 4177 Bundle userRestrictions = mUserManager.getUserRestrictions(); 4178 mUserManager.setUserRestrictions(new Bundle(), userHandle); 4179 if (userRestrictions.getBoolean(UserManager.DISALLOW_ADJUST_VOLUME)) { 4180 audioManager.setMasterMute(false, 0); 4181 } 4182 if (userRestrictions.getBoolean(UserManager.DISALLOW_UNMUTE_MICROPHONE)) { 4183 audioManager.setMicrophoneMute(false); 4184 } 4185 } 4186 4187 @Override 4188 public boolean hasUserSetupCompleted() { 4189 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 4190 } 4191 4192 private boolean hasUserSetupCompleted(int userHandle) { 4193 if (!mHasFeature) { 4194 return true; 4195 } 4196 DevicePolicyData policy = getUserData(userHandle); 4197 // If policy is null, return true, else check if the setup has completed. 4198 return policy == null || policy.mUserSetupComplete; 4199 } 4200 4201 @Override 4202 public boolean setUserEnabled(ComponentName who) { 4203 if (!mHasFeature) { 4204 return false; 4205 } 4206 synchronized (this) { 4207 if (who == null) { 4208 throw new NullPointerException("ComponentName is null"); 4209 } 4210 int userId = UserHandle.getCallingUserId(); 4211 4212 ActiveAdmin activeAdmin = 4213 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4214 if (!isDeviceInitializer(activeAdmin.info.getPackageName())) { 4215 throw new SecurityException( 4216 "This method can only be called by device initializers"); 4217 } 4218 4219 long id = Binder.clearCallingIdentity(); 4220 try { 4221 if (!isDeviceOwner(activeAdmin.info.getPackageName())) { 4222 IPackageManager ipm = AppGlobals.getPackageManager(); 4223 ipm.setComponentEnabledSetting(who, 4224 PackageManager.COMPONENT_ENABLED_STATE_DISABLED, 4225 PackageManager.DONT_KILL_APP, userId); 4226 4227 removeActiveAdmin(who, userId); 4228 } 4229 4230 if (userId == UserHandle.USER_OWNER) { 4231 Settings.Global.putInt(mContext.getContentResolver(), 4232 Settings.Global.DEVICE_PROVISIONED, 1); 4233 } 4234 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4235 Settings.Secure.USER_SETUP_COMPLETE, 1, userId); 4236 } catch (RemoteException e) { 4237 Log.i(LOG_TAG, "Can't talk to package manager", e); 4238 return false; 4239 } finally { 4240 restoreCallingIdentity(id); 4241 } 4242 return true; 4243 } 4244 } 4245 4246 @Override 4247 public void setProfileEnabled(ComponentName who) { 4248 if (!mHasFeature) { 4249 return; 4250 } 4251 Preconditions.checkNotNull(who, "ComponentName is null"); 4252 final int userHandle = UserHandle.getCallingUserId(); 4253 synchronized (this) { 4254 // Check if this is the profile owner who is calling 4255 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4256 int userId = UserHandle.getCallingUserId(); 4257 4258 long id = Binder.clearCallingIdentity(); 4259 try { 4260 mUserManager.setUserEnabled(userId); 4261 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 4262 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 4263 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 4264 Intent.FLAG_RECEIVER_FOREGROUND); 4265 // TODO This should send to parent of profile (which is always owner at the moment). 4266 mContext.sendBroadcastAsUser(intent, UserHandle.OWNER); 4267 } finally { 4268 restoreCallingIdentity(id); 4269 } 4270 } 4271 } 4272 4273 @Override 4274 public void setProfileName(ComponentName who, String profileName) { 4275 Preconditions.checkNotNull(who, "ComponentName is null"); 4276 int userId = UserHandle.getCallingUserId(); 4277 // Check if this is the profile owner (includes device owner). 4278 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4279 4280 long id = Binder.clearCallingIdentity(); 4281 try { 4282 mUserManager.setUserName(userId, profileName); 4283 } finally { 4284 restoreCallingIdentity(id); 4285 } 4286 } 4287 4288 @Override 4289 public ComponentName getProfileOwner(int userHandle) { 4290 if (!mHasFeature) { 4291 return null; 4292 } 4293 4294 synchronized (this) { 4295 if (mDeviceOwner != null) { 4296 return mDeviceOwner.getProfileOwnerComponent(userHandle); 4297 } 4298 } 4299 return null; 4300 } 4301 4302 // Returns the active profile owner for this user or null if the current user has no 4303 // profile owner. 4304 private ActiveAdmin getProfileOwnerAdmin(int userHandle) { 4305 ComponentName profileOwner = 4306 mDeviceOwner != null ? mDeviceOwner.getProfileOwnerComponent(userHandle) : null; 4307 if (profileOwner == null) { 4308 return null; 4309 } 4310 4311 DevicePolicyData policy = getUserData(userHandle); 4312 final int n = policy.mAdminList.size(); 4313 for (int i = 0; i < n; i++) { 4314 ActiveAdmin admin = policy.mAdminList.get(i); 4315 if (profileOwner.equals(admin.info.getComponent())) { 4316 return admin; 4317 } 4318 } 4319 return null; 4320 } 4321 4322 @Override 4323 public String getProfileOwnerName(int userHandle) { 4324 if (!mHasFeature) { 4325 return null; 4326 } 4327 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4328 4329 synchronized (this) { 4330 if (mDeviceOwner != null) { 4331 return mDeviceOwner.getProfileOwnerName(userHandle); 4332 } 4333 } 4334 return null; 4335 } 4336 4337 /** 4338 * Device owner can only be set on an unprovisioned device. However, if initiated via "adb", 4339 * we also allow it if no accounts or additional users are present on the device. 4340 */ 4341 private boolean allowedToSetDeviceOwnerOnDevice() { 4342 if (!hasUserSetupCompleted(UserHandle.USER_OWNER)) { 4343 return true; 4344 } 4345 4346 int callingId = Binder.getCallingUid(); 4347 return (callingId == Process.SHELL_UID || callingId == Process.ROOT_UID) 4348 && mUserManager.getUserCount() == 1 4349 && AccountManager.get(mContext).getAccounts().length == 0; 4350 } 4351 4352 private void enforceCrossUserPermission(int userHandle) { 4353 if (userHandle < 0) { 4354 throw new IllegalArgumentException("Invalid userId " + userHandle); 4355 } 4356 final int callingUid = Binder.getCallingUid(); 4357 if (userHandle == UserHandle.getUserId(callingUid)) return; 4358 if (callingUid != Process.SYSTEM_UID && callingUid != 0) { 4359 mContext.enforceCallingOrSelfPermission( 4360 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 4361 + " INTERACT_ACROSS_USERS_FULL permission"); 4362 } 4363 } 4364 4365 private void enforceSystemProcess(String message) { 4366 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4367 throw new SecurityException(message); 4368 } 4369 } 4370 4371 private void enforceNotManagedProfile(int userHandle, String message) { 4372 if(isManagedProfile(userHandle)) { 4373 throw new SecurityException("You can not " + message + " for a managed profile. "); 4374 } 4375 } 4376 4377 private UserInfo getProfileParent(int userHandle) { 4378 long ident = Binder.clearCallingIdentity(); 4379 try { 4380 return mUserManager.getProfileParent(userHandle); 4381 } finally { 4382 Binder.restoreCallingIdentity(ident); 4383 } 4384 } 4385 4386 private boolean isManagedProfile(int userHandle) { 4387 long ident = Binder.clearCallingIdentity(); 4388 try { 4389 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 4390 } finally { 4391 Binder.restoreCallingIdentity(ident); 4392 } 4393 } 4394 4395 private void enableIfNecessary(String packageName, int userId) { 4396 try { 4397 IPackageManager ipm = AppGlobals.getPackageManager(); 4398 ApplicationInfo ai = ipm.getApplicationInfo(packageName, 4399 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 4400 userId); 4401 if (ai.enabledSetting 4402 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 4403 ipm.setApplicationEnabledSetting(packageName, 4404 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 4405 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 4406 } 4407 } catch (RemoteException e) { 4408 } 4409 } 4410 4411 @Override 4412 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 4413 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 4414 != PackageManager.PERMISSION_GRANTED) { 4415 4416 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 4417 + Binder.getCallingPid() 4418 + ", uid=" + Binder.getCallingUid()); 4419 return; 4420 } 4421 4422 final Printer p = new PrintWriterPrinter(pw); 4423 4424 synchronized (this) { 4425 p.println("Current Device Policy Manager state:"); 4426 if (mDeviceOwner != null) { 4427 mDeviceOwner.dump(" ", pw); 4428 } 4429 int userCount = mUserData.size(); 4430 for (int u = 0; u < userCount; u++) { 4431 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 4432 p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 4433 final int N = policy.mAdminList.size(); 4434 for (int i=0; i<N; i++) { 4435 ActiveAdmin ap = policy.mAdminList.get(i); 4436 if (ap != null) { 4437 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 4438 pw.println(":"); 4439 ap.dump(" ", pw); 4440 } 4441 } 4442 if (!policy.mRemovingAdmins.isEmpty()) { 4443 p.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 4444 + policy.mRemovingAdmins); 4445 } 4446 4447 pw.println(" "); 4448 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 4449 } 4450 } 4451 } 4452 4453 @Override 4454 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 4455 ComponentName activity) { 4456 Preconditions.checkNotNull(who, "ComponentName is null"); 4457 final int userHandle = UserHandle.getCallingUserId(); 4458 synchronized (this) { 4459 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4460 4461 IPackageManager pm = AppGlobals.getPackageManager(); 4462 long id = Binder.clearCallingIdentity(); 4463 try { 4464 pm.addPersistentPreferredActivity(filter, activity, userHandle); 4465 } catch (RemoteException re) { 4466 // Shouldn't happen 4467 } finally { 4468 restoreCallingIdentity(id); 4469 } 4470 } 4471 } 4472 4473 @Override 4474 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 4475 Preconditions.checkNotNull(who, "ComponentName is null"); 4476 final int userHandle = UserHandle.getCallingUserId(); 4477 synchronized (this) { 4478 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4479 4480 IPackageManager pm = AppGlobals.getPackageManager(); 4481 long id = Binder.clearCallingIdentity(); 4482 try { 4483 pm.clearPackagePersistentPreferredActivities(packageName, userHandle); 4484 } catch (RemoteException re) { 4485 // Shouldn't happen 4486 } finally { 4487 restoreCallingIdentity(id); 4488 } 4489 } 4490 } 4491 4492 @Override 4493 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 4494 Preconditions.checkNotNull(who, "ComponentName is null"); 4495 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4496 synchronized (this) { 4497 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4498 4499 long id = Binder.clearCallingIdentity(); 4500 try { 4501 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 4502 } finally { 4503 restoreCallingIdentity(id); 4504 } 4505 } 4506 } 4507 4508 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 4509 PersistableBundle args) { 4510 if (!mHasFeature) { 4511 return; 4512 } 4513 Preconditions.checkNotNull(admin, "admin is null"); 4514 Preconditions.checkNotNull(agent, "agent is null"); 4515 final int userHandle = UserHandle.getCallingUserId(); 4516 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 4517 synchronized (this) { 4518 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 4519 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4520 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 4521 saveSettingsLocked(userHandle); 4522 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 4523 } 4524 } 4525 4526 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 4527 ComponentName agent, int userHandle) { 4528 if (!mHasFeature) { 4529 return null; 4530 } 4531 Preconditions.checkNotNull(agent, "agent null"); 4532 enforceCrossUserPermission(userHandle); 4533 4534 synchronized (this) { 4535 final String componentName = agent.flattenToString(); 4536 if (admin != null) { 4537 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 4538 if (ap == null) return null; 4539 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 4540 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 4541 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 4542 result.add(trustAgentInfo.options); 4543 return result; 4544 } 4545 4546 // Return strictest policy for this user and profiles that are visible from this user. 4547 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 4548 List<PersistableBundle> result = null; 4549 4550 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 4551 // of the options. If any admin doesn't have options, discard options for the rest 4552 // and return null. 4553 boolean allAdminsHaveOptions = true; 4554 for (UserInfo userInfo : profiles) { 4555 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 4556 final int N = policy.mAdminList.size(); 4557 for (int i=0; i < N; i++) { 4558 final ActiveAdmin active = policy.mAdminList.get(i); 4559 final boolean disablesTrust = (active.disabledKeyguardFeatures 4560 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 4561 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 4562 if (info != null && info.options != null && !info.options.isEmpty()) { 4563 if (disablesTrust) { 4564 if (result == null) { 4565 result = new ArrayList<PersistableBundle>(); 4566 } 4567 result.add(info.options); 4568 } else { 4569 Log.w(LOG_TAG, "Ignoring admin " + active.info 4570 + " because it has trust options but doesn't declare " 4571 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 4572 } 4573 } else if (disablesTrust) { 4574 allAdminsHaveOptions = false; 4575 break; 4576 } 4577 } 4578 } 4579 return allAdminsHaveOptions ? result : null; 4580 } 4581 } 4582 4583 @Override 4584 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 4585 Preconditions.checkNotNull(who, "ComponentName is null"); 4586 synchronized (this) { 4587 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4588 4589 int userHandle = UserHandle.getCallingUserId(); 4590 DevicePolicyData userData = getUserData(userHandle); 4591 userData.mRestrictionsProvider = permissionProvider; 4592 saveSettingsLocked(userHandle); 4593 } 4594 } 4595 4596 @Override 4597 public ComponentName getRestrictionsProvider(int userHandle) { 4598 synchronized (this) { 4599 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4600 throw new SecurityException("Only the system can query the permission provider"); 4601 } 4602 DevicePolicyData userData = getUserData(userHandle); 4603 return userData != null ? userData.mRestrictionsProvider : null; 4604 } 4605 } 4606 4607 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 4608 Preconditions.checkNotNull(who, "ComponentName is null"); 4609 int callingUserId = UserHandle.getCallingUserId(); 4610 synchronized (this) { 4611 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4612 4613 IPackageManager pm = AppGlobals.getPackageManager(); 4614 long id = Binder.clearCallingIdentity(); 4615 try { 4616 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 4617 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), callingUserId, 4618 UserHandle.USER_OWNER, 0); 4619 } 4620 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 4621 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), 4622 UserHandle.USER_OWNER, callingUserId, 0); 4623 } 4624 } catch (RemoteException re) { 4625 // Shouldn't happen 4626 } finally { 4627 restoreCallingIdentity(id); 4628 } 4629 } 4630 } 4631 4632 public void clearCrossProfileIntentFilters(ComponentName who) { 4633 Preconditions.checkNotNull(who, "ComponentName is null"); 4634 int callingUserId = UserHandle.getCallingUserId(); 4635 synchronized (this) { 4636 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4637 IPackageManager pm = AppGlobals.getPackageManager(); 4638 long id = Binder.clearCallingIdentity(); 4639 try { 4640 // Removing those that go from the managed profile to the primary user. 4641 pm.clearCrossProfileIntentFilters(callingUserId, who.getPackageName()); 4642 // And those that go from the primary user to the managed profile. 4643 // If we want to support multiple managed profiles, we will have to only remove 4644 // those that have callingUserId as their target. 4645 pm.clearCrossProfileIntentFilters(UserHandle.USER_OWNER, who.getPackageName()); 4646 } catch (RemoteException re) { 4647 // Shouldn't happen 4648 } finally { 4649 restoreCallingIdentity(id); 4650 } 4651 } 4652 } 4653 4654 /** 4655 * @return true if all packages in enabledPackages are either in the list 4656 * permittedList or are a system app. 4657 */ 4658 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 4659 List<String> permittedList) { 4660 int userIdToCheck = UserHandle.getCallingUserId(); 4661 long id = Binder.clearCallingIdentity(); 4662 try { 4663 // If we have an enabled packages list for a managed profile the packages 4664 // we should check are installed for the parent user. 4665 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 4666 if (user.isManagedProfile()) { 4667 userIdToCheck = user.profileGroupId; 4668 } 4669 4670 IPackageManager pm = AppGlobals.getPackageManager(); 4671 for (String enabledPackage : enabledPackages) { 4672 boolean systemService = false; 4673 try { 4674 ApplicationInfo applicationInfo = pm.getApplicationInfo(enabledPackage, 4675 PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 4676 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 4677 } catch (RemoteException e) { 4678 Log.i(LOG_TAG, "Can't talk to package managed", e); 4679 } 4680 if (!systemService && !permittedList.contains(enabledPackage)) { 4681 return false; 4682 } 4683 } 4684 } finally { 4685 restoreCallingIdentity(id); 4686 } 4687 return true; 4688 } 4689 4690 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 4691 // Not using AccessibilityManager.getInstance because that guesses 4692 // at the user you require based on callingUid and caches for a given 4693 // process. 4694 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 4695 IAccessibilityManager service = iBinder == null 4696 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 4697 return new AccessibilityManager(mContext, service, userId); 4698 } 4699 4700 @Override 4701 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 4702 if (!mHasFeature) { 4703 return false; 4704 } 4705 Preconditions.checkNotNull(who, "ComponentName is null"); 4706 4707 if (packageList != null) { 4708 int userId = UserHandle.getCallingUserId(); 4709 List<AccessibilityServiceInfo> enabledServices = null; 4710 long id = Binder.clearCallingIdentity(); 4711 try { 4712 UserInfo user = mUserManager.getUserInfo(userId); 4713 if (user.isManagedProfile()) { 4714 userId = user.profileGroupId; 4715 } 4716 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 4717 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 4718 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 4719 } finally { 4720 restoreCallingIdentity(id); 4721 } 4722 4723 if (enabledServices != null) { 4724 List<String> enabledPackages = new ArrayList<String>(); 4725 for (AccessibilityServiceInfo service : enabledServices) { 4726 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 4727 } 4728 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 4729 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 4730 + "because it contains already enabled accesibility services."); 4731 return false; 4732 } 4733 } 4734 } 4735 4736 synchronized (this) { 4737 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4738 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4739 admin.permittedAccessiblityServices = packageList; 4740 saveSettingsLocked(UserHandle.getCallingUserId()); 4741 } 4742 return true; 4743 } 4744 4745 @Override 4746 public List getPermittedAccessibilityServices(ComponentName who) { 4747 if (!mHasFeature) { 4748 return null; 4749 } 4750 Preconditions.checkNotNull(who, "ComponentName is null"); 4751 4752 synchronized (this) { 4753 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4754 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4755 return admin.permittedAccessiblityServices; 4756 } 4757 } 4758 4759 @Override 4760 public List getPermittedAccessibilityServicesForUser(int userId) { 4761 if (!mHasFeature) { 4762 return null; 4763 } 4764 synchronized (this) { 4765 List<String> result = null; 4766 // If we have multiple profiles we return the intersection of the 4767 // permitted lists. This can happen in cases where we have a device 4768 // and profile owner. 4769 List<UserInfo> profiles = mUserManager.getProfiles(userId); 4770 final int PROFILES_SIZE = profiles.size(); 4771 for (int i = 0; i < PROFILES_SIZE; ++i) { 4772 // Just loop though all admins, only device or profiles 4773 // owners can have permitted lists set. 4774 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 4775 final int N = policy.mAdminList.size(); 4776 for (int j = 0; j < N; j++) { 4777 ActiveAdmin admin = policy.mAdminList.get(j); 4778 List<String> fromAdmin = admin.permittedAccessiblityServices; 4779 if (fromAdmin != null) { 4780 if (result == null) { 4781 result = new ArrayList<String>(fromAdmin); 4782 } else { 4783 result.retainAll(fromAdmin); 4784 } 4785 } 4786 } 4787 } 4788 4789 // If we have a permitted list add all system accessibility services. 4790 if (result != null) { 4791 long id = Binder.clearCallingIdentity(); 4792 try { 4793 UserInfo user = mUserManager.getUserInfo(userId); 4794 if (user.isManagedProfile()) { 4795 userId = user.profileGroupId; 4796 } 4797 AccessibilityManager accessibilityManager = 4798 getAccessibilityManagerForUser(userId); 4799 List<AccessibilityServiceInfo> installedServices = 4800 accessibilityManager.getInstalledAccessibilityServiceList(); 4801 4802 IPackageManager pm = AppGlobals.getPackageManager(); 4803 if (installedServices != null) { 4804 for (AccessibilityServiceInfo service : installedServices) { 4805 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 4806 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 4807 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 4808 result.add(serviceInfo.packageName); 4809 } 4810 } 4811 } 4812 } finally { 4813 restoreCallingIdentity(id); 4814 } 4815 } 4816 4817 return result; 4818 } 4819 } 4820 4821 private boolean checkCallerIsCurrentUserOrProfile() { 4822 int callingUserId = UserHandle.getCallingUserId(); 4823 long token = Binder.clearCallingIdentity(); 4824 try { 4825 UserInfo currentUser; 4826 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 4827 try { 4828 currentUser = ActivityManagerNative.getDefault().getCurrentUser(); 4829 } catch (RemoteException e) { 4830 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 4831 return false; 4832 } 4833 4834 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 4835 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 4836 + "of a user that isn't the foreground user."); 4837 return false; 4838 } 4839 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 4840 Slog.e(LOG_TAG, "Cannot set permitted input methods " 4841 + "of a user that isn't the foreground user."); 4842 return false; 4843 } 4844 } finally { 4845 Binder.restoreCallingIdentity(token); 4846 } 4847 return true; 4848 } 4849 4850 @Override 4851 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 4852 if (!mHasFeature) { 4853 return false; 4854 } 4855 Preconditions.checkNotNull(who, "ComponentName is null"); 4856 4857 // TODO When InputMethodManager supports per user calls remove 4858 // this restriction. 4859 if (!checkCallerIsCurrentUserOrProfile()) { 4860 return false; 4861 } 4862 4863 if (packageList != null) { 4864 // InputMethodManager fetches input methods for current user. 4865 // So this can only be set when calling user is the current user 4866 // or parent is current user in case of managed profiles. 4867 InputMethodManager inputMethodManager = (InputMethodManager) mContext 4868 .getSystemService(Context.INPUT_METHOD_SERVICE); 4869 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 4870 4871 if (enabledImes != null) { 4872 List<String> enabledPackages = new ArrayList<String>(); 4873 for (InputMethodInfo ime : enabledImes) { 4874 enabledPackages.add(ime.getPackageName()); 4875 } 4876 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 4877 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 4878 + "because it contains already enabled input method."); 4879 return false; 4880 } 4881 } 4882 } 4883 4884 synchronized (this) { 4885 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4886 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4887 admin.permittedInputMethods = packageList; 4888 saveSettingsLocked(UserHandle.getCallingUserId()); 4889 } 4890 return true; 4891 } 4892 4893 @Override 4894 public List getPermittedInputMethods(ComponentName who) { 4895 if (!mHasFeature) { 4896 return null; 4897 } 4898 Preconditions.checkNotNull(who, "ComponentName is null"); 4899 4900 synchronized (this) { 4901 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4902 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4903 return admin.permittedInputMethods; 4904 } 4905 } 4906 4907 @Override 4908 public List getPermittedInputMethodsForCurrentUser() { 4909 UserInfo currentUser; 4910 try { 4911 currentUser = ActivityManagerNative.getDefault().getCurrentUser(); 4912 } catch (RemoteException e) { 4913 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 4914 // Activity managed is dead, just allow all IMEs 4915 return null; 4916 } 4917 4918 int userId = currentUser.id; 4919 synchronized (this) { 4920 List<String> result = null; 4921 // If we have multiple profiles we return the intersection of the 4922 // permitted lists. This can happen in cases where we have a device 4923 // and profile owner. 4924 List<UserInfo> profiles = mUserManager.getProfiles(userId); 4925 final int PROFILES_SIZE = profiles.size(); 4926 for (int i = 0; i < PROFILES_SIZE; ++i) { 4927 // Just loop though all admins, only device or profiles 4928 // owners can have permitted lists set. 4929 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 4930 final int N = policy.mAdminList.size(); 4931 for (int j = 0; j < N; j++) { 4932 ActiveAdmin admin = policy.mAdminList.get(j); 4933 List<String> fromAdmin = admin.permittedInputMethods; 4934 if (fromAdmin != null) { 4935 if (result == null) { 4936 result = new ArrayList<String>(fromAdmin); 4937 } else { 4938 result.retainAll(fromAdmin); 4939 } 4940 } 4941 } 4942 } 4943 4944 // If we have a permitted list add all system input methods. 4945 if (result != null) { 4946 InputMethodManager inputMethodManager = (InputMethodManager) mContext 4947 .getSystemService(Context.INPUT_METHOD_SERVICE); 4948 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 4949 long id = Binder.clearCallingIdentity(); 4950 try { 4951 IPackageManager pm = AppGlobals.getPackageManager(); 4952 if (imes != null) { 4953 for (InputMethodInfo ime : imes) { 4954 ServiceInfo serviceInfo = ime.getServiceInfo(); 4955 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 4956 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 4957 result.add(serviceInfo.packageName); 4958 } 4959 } 4960 } 4961 } finally { 4962 restoreCallingIdentity(id); 4963 } 4964 } 4965 return result; 4966 } 4967 } 4968 4969 @Override 4970 public UserHandle createUser(ComponentName who, String name) { 4971 Preconditions.checkNotNull(who, "ComponentName is null"); 4972 synchronized (this) { 4973 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4974 4975 long id = Binder.clearCallingIdentity(); 4976 try { 4977 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 4978 if (userInfo != null) { 4979 return userInfo.getUserHandle(); 4980 } 4981 return null; 4982 } finally { 4983 restoreCallingIdentity(id); 4984 } 4985 } 4986 } 4987 4988 @Override 4989 public UserHandle createAndInitializeUser(ComponentName who, String name, 4990 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 4991 UserHandle user = createUser(who, name); 4992 if (user == null) { 4993 return null; 4994 } 4995 long id = Binder.clearCallingIdentity(); 4996 try { 4997 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 4998 final IPackageManager ipm = AppGlobals.getPackageManager(); 4999 IActivityManager activityManager = ActivityManagerNative.getDefault(); 5000 5001 try { 5002 // Install the profile owner if not present. 5003 if (!ipm.isPackageAvailable(profileOwnerPkg, user.getIdentifier())) { 5004 ipm.installExistingPackageAsUser(profileOwnerPkg, user.getIdentifier()); 5005 } 5006 5007 // Start user in background. 5008 activityManager.startUserInBackground(user.getIdentifier()); 5009 } catch (RemoteException e) { 5010 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 5011 } 5012 5013 setActiveAdmin(profileOwnerComponent, true, user.getIdentifier(), adminExtras); 5014 setProfileOwner(profileOwnerComponent, ownerName, user.getIdentifier()); 5015 return user; 5016 } finally { 5017 restoreCallingIdentity(id); 5018 } 5019 } 5020 5021 @Override 5022 public boolean removeUser(ComponentName who, UserHandle userHandle) { 5023 Preconditions.checkNotNull(who, "ComponentName is null"); 5024 synchronized (this) { 5025 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5026 5027 long id = Binder.clearCallingIdentity(); 5028 try { 5029 return mUserManager.removeUser(userHandle.getIdentifier()); 5030 } finally { 5031 restoreCallingIdentity(id); 5032 } 5033 } 5034 } 5035 5036 @Override 5037 public boolean switchUser(ComponentName who, UserHandle userHandle) { 5038 Preconditions.checkNotNull(who, "ComponentName is null"); 5039 synchronized (this) { 5040 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5041 5042 long id = Binder.clearCallingIdentity(); 5043 try { 5044 int userId = UserHandle.USER_OWNER; 5045 if (userHandle != null) { 5046 userId = userHandle.getIdentifier(); 5047 } 5048 return ActivityManagerNative.getDefault().switchUser(userId); 5049 } catch (RemoteException e) { 5050 Log.e(LOG_TAG, "Couldn't switch user", e); 5051 return false; 5052 } finally { 5053 restoreCallingIdentity(id); 5054 } 5055 } 5056 } 5057 5058 @Override 5059 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 5060 Preconditions.checkNotNull(who, "ComponentName is null"); 5061 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5062 5063 synchronized (this) { 5064 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5065 5066 long id = Binder.clearCallingIdentity(); 5067 try { 5068 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 5069 // if no restrictions were saved, mUserManager.getApplicationRestrictions 5070 // returns null, but DPM method should return an empty Bundle as per JavaDoc 5071 return bundle != null ? bundle : Bundle.EMPTY; 5072 } finally { 5073 restoreCallingIdentity(id); 5074 } 5075 } 5076 } 5077 5078 @Override 5079 public void setUserRestriction(ComponentName who, String key, boolean enabled) { 5080 Preconditions.checkNotNull(who, "ComponentName is null"); 5081 final UserHandle user = new UserHandle(UserHandle.getCallingUserId()); 5082 final int userHandle = user.getIdentifier(); 5083 synchronized (this) { 5084 ActiveAdmin activeAdmin = 5085 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5086 boolean isDeviceOwner = isDeviceOwner(activeAdmin.info.getPackageName()); 5087 if (!isDeviceOwner && userHandle != UserHandle.USER_OWNER 5088 && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) { 5089 throw new SecurityException("Profile owners cannot set user restriction " + key); 5090 } 5091 if (IMMUTABLE_USER_RESTRICTIONS.contains(key)) { 5092 throw new SecurityException("User restriction " + key + " cannot be changed"); 5093 } 5094 boolean alreadyRestricted = mUserManager.hasUserRestriction(key, user); 5095 5096 IAudioService iAudioService = null; 5097 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key) 5098 || UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 5099 iAudioService = IAudioService.Stub.asInterface( 5100 ServiceManager.getService(Context.AUDIO_SERVICE)); 5101 } 5102 5103 if (enabled && !alreadyRestricted) { 5104 try { 5105 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 5106 iAudioService.setMicrophoneMute(true, who.getPackageName()); 5107 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 5108 iAudioService.setMasterMute(true, 0, who.getPackageName()); 5109 } 5110 } catch (RemoteException re) { 5111 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 5112 } 5113 } 5114 long id = Binder.clearCallingIdentity(); 5115 try { 5116 if (enabled && !alreadyRestricted) { 5117 if (UserManager.DISALLOW_CONFIG_WIFI.equals(key)) { 5118 Settings.Secure.putIntForUser(mContext.getContentResolver(), 5119 Settings.Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON, 0, 5120 userHandle); 5121 } else if (UserManager.DISALLOW_USB_FILE_TRANSFER.equals(key)) { 5122 UsbManager manager = 5123 (UsbManager) mContext.getSystemService(Context.USB_SERVICE); 5124 manager.setCurrentFunction("none", false); 5125 } else if (UserManager.DISALLOW_SHARE_LOCATION.equals(key)) { 5126 Settings.Secure.putIntForUser(mContext.getContentResolver(), 5127 Settings.Secure.LOCATION_MODE, Settings.Secure.LOCATION_MODE_OFF, 5128 userHandle); 5129 Settings.Secure.putStringForUser(mContext.getContentResolver(), 5130 Settings.Secure.LOCATION_PROVIDERS_ALLOWED, "", 5131 userHandle); 5132 } else if (UserManager.DISALLOW_DEBUGGING_FEATURES.equals(key)) { 5133 // Only disable adb if changing for primary user, since it is global 5134 if (userHandle == UserHandle.USER_OWNER) { 5135 Settings.Global.putStringForUser(mContext.getContentResolver(), 5136 Settings.Global.ADB_ENABLED, "0", userHandle); 5137 } 5138 } else if (UserManager.ENSURE_VERIFY_APPS.equals(key)) { 5139 Settings.Global.putStringForUser(mContext.getContentResolver(), 5140 Settings.Global.PACKAGE_VERIFIER_ENABLE, "1", 5141 userHandle); 5142 Settings.Global.putStringForUser(mContext.getContentResolver(), 5143 Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, "1", 5144 userHandle); 5145 } else if (UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES.equals(key)) { 5146 Settings.Secure.putIntForUser(mContext.getContentResolver(), 5147 Settings.Secure.INSTALL_NON_MARKET_APPS, 0, 5148 userHandle); 5149 } 5150 } 5151 mUserManager.setUserRestriction(key, enabled, user); 5152 if (enabled != alreadyRestricted) { 5153 if (UserManager.DISALLOW_SHARE_LOCATION.equals(key)) { 5154 // Send out notifications however as some clients may want to reread the 5155 // value which actually changed due to a restriction having been applied. 5156 final String property = Settings.Secure.SYS_PROP_SETTING_VERSION; 5157 long version = SystemProperties.getLong(property, 0) + 1; 5158 SystemProperties.set(property, Long.toString(version)); 5159 5160 final String name = Settings.Secure.LOCATION_PROVIDERS_ALLOWED; 5161 Uri url = Uri.withAppendedPath(Settings.Secure.CONTENT_URI, name); 5162 mContext.getContentResolver().notifyChange(url, null, true, userHandle); 5163 } 5164 } 5165 } finally { 5166 restoreCallingIdentity(id); 5167 } 5168 if (!enabled && alreadyRestricted) { 5169 try { 5170 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 5171 iAudioService.setMicrophoneMute(false, who.getPackageName()); 5172 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 5173 iAudioService.setMasterMute(false, 0, who.getPackageName()); 5174 } 5175 } catch (RemoteException re) { 5176 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 5177 } 5178 } 5179 sendChangedNotification(userHandle); 5180 } 5181 } 5182 5183 @Override 5184 public boolean setApplicationHidden(ComponentName who, String packageName, 5185 boolean hidden) { 5186 Preconditions.checkNotNull(who, "ComponentName is null"); 5187 int callingUserId = UserHandle.getCallingUserId(); 5188 synchronized (this) { 5189 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5190 5191 long id = Binder.clearCallingIdentity(); 5192 try { 5193 IPackageManager pm = AppGlobals.getPackageManager(); 5194 return pm.setApplicationHiddenSettingAsUser(packageName, hidden, callingUserId); 5195 } catch (RemoteException re) { 5196 // shouldn't happen 5197 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 5198 } finally { 5199 restoreCallingIdentity(id); 5200 } 5201 return false; 5202 } 5203 } 5204 5205 @Override 5206 public boolean isApplicationHidden(ComponentName who, String packageName) { 5207 Preconditions.checkNotNull(who, "ComponentName is null"); 5208 int callingUserId = UserHandle.getCallingUserId(); 5209 synchronized (this) { 5210 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5211 5212 long id = Binder.clearCallingIdentity(); 5213 try { 5214 IPackageManager pm = AppGlobals.getPackageManager(); 5215 return pm.getApplicationHiddenSettingAsUser(packageName, callingUserId); 5216 } catch (RemoteException re) { 5217 // shouldn't happen 5218 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 5219 } finally { 5220 restoreCallingIdentity(id); 5221 } 5222 return false; 5223 } 5224 } 5225 5226 @Override 5227 public void enableSystemApp(ComponentName who, String packageName) { 5228 Preconditions.checkNotNull(who, "ComponentName is null"); 5229 synchronized (this) { 5230 // This API can only be called by an active device admin, 5231 // so try to retrieve it to check that the caller is one. 5232 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5233 5234 int userId = UserHandle.getCallingUserId(); 5235 long id = Binder.clearCallingIdentity(); 5236 5237 try { 5238 if (DBG) { 5239 Slog.v(LOG_TAG, "installing " + packageName + " for " 5240 + userId); 5241 } 5242 5243 UserManager um = UserManager.get(mContext); 5244 UserInfo primaryUser = um.getProfileParent(userId); 5245 5246 // Call did not come from a managed profile 5247 if (primaryUser == null) { 5248 primaryUser = um.getUserInfo(userId); 5249 } 5250 5251 IPackageManager pm = AppGlobals.getPackageManager(); 5252 if (!isSystemApp(pm, packageName, primaryUser.id)) { 5253 throw new IllegalArgumentException("Only system apps can be enabled this way."); 5254 } 5255 5256 // Install the app. 5257 pm.installExistingPackageAsUser(packageName, userId); 5258 5259 } catch (RemoteException re) { 5260 // shouldn't happen 5261 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 5262 } finally { 5263 restoreCallingIdentity(id); 5264 } 5265 } 5266 } 5267 5268 @Override 5269 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 5270 Preconditions.checkNotNull(who, "ComponentName is null"); 5271 synchronized (this) { 5272 // This API can only be called by an active device admin, 5273 // so try to retrieve it to check that the caller is one. 5274 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5275 5276 int userId = UserHandle.getCallingUserId(); 5277 long id = Binder.clearCallingIdentity(); 5278 5279 try { 5280 UserManager um = UserManager.get(mContext); 5281 UserInfo primaryUser = um.getProfileParent(userId); 5282 5283 // Call did not come from a managed profile. 5284 if (primaryUser == null) { 5285 primaryUser = um.getUserInfo(userId); 5286 } 5287 5288 IPackageManager pm = AppGlobals.getPackageManager(); 5289 List<ResolveInfo> activitiesToEnable = pm.queryIntentActivities(intent, 5290 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 5291 0, // no flags 5292 primaryUser.id); 5293 5294 if (DBG) Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 5295 int numberOfAppsInstalled = 0; 5296 if (activitiesToEnable != null) { 5297 for (ResolveInfo info : activitiesToEnable) { 5298 if (info.activityInfo != null) { 5299 String packageName = info.activityInfo.packageName; 5300 if (isSystemApp(pm, packageName, primaryUser.id)) { 5301 numberOfAppsInstalled++; 5302 pm.installExistingPackageAsUser(packageName, userId); 5303 } else { 5304 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 5305 + " system app"); 5306 } 5307 } 5308 } 5309 } 5310 return numberOfAppsInstalled; 5311 } catch (RemoteException e) { 5312 // shouldn't happen 5313 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 5314 return 0; 5315 } finally { 5316 restoreCallingIdentity(id); 5317 } 5318 } 5319 } 5320 5321 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 5322 throws RemoteException { 5323 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 5324 userId); 5325 if (appInfo == null) { 5326 throw new IllegalArgumentException("The application " + packageName + 5327 " is not present on this device"); 5328 } 5329 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5330 } 5331 5332 @Override 5333 public void setAccountManagementDisabled(ComponentName who, String accountType, 5334 boolean disabled) { 5335 if (!mHasFeature) { 5336 return; 5337 } 5338 Preconditions.checkNotNull(who, "ComponentName is null"); 5339 synchronized (this) { 5340 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5341 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5342 if (disabled) { 5343 ap.accountTypesWithManagementDisabled.add(accountType); 5344 } else { 5345 ap.accountTypesWithManagementDisabled.remove(accountType); 5346 } 5347 saveSettingsLocked(UserHandle.getCallingUserId()); 5348 } 5349 } 5350 5351 @Override 5352 public String[] getAccountTypesWithManagementDisabled() { 5353 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 5354 } 5355 5356 @Override 5357 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 5358 enforceCrossUserPermission(userId); 5359 if (!mHasFeature) { 5360 return null; 5361 } 5362 synchronized (this) { 5363 DevicePolicyData policy = getUserData(userId); 5364 final int N = policy.mAdminList.size(); 5365 HashSet<String> resultSet = new HashSet<String>(); 5366 for (int i = 0; i < N; i++) { 5367 ActiveAdmin admin = policy.mAdminList.get(i); 5368 resultSet.addAll(admin.accountTypesWithManagementDisabled); 5369 } 5370 return resultSet.toArray(new String[resultSet.size()]); 5371 } 5372 } 5373 5374 @Override 5375 public void setUninstallBlocked(ComponentName who, String packageName, 5376 boolean uninstallBlocked) { 5377 Preconditions.checkNotNull(who, "ComponentName is null"); 5378 final int userId = UserHandle.getCallingUserId(); 5379 synchronized (this) { 5380 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5381 5382 long id = Binder.clearCallingIdentity(); 5383 try { 5384 IPackageManager pm = AppGlobals.getPackageManager(); 5385 pm.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 5386 } catch (RemoteException re) { 5387 // Shouldn't happen. 5388 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 5389 } finally { 5390 restoreCallingIdentity(id); 5391 } 5392 } 5393 } 5394 5395 @Override 5396 public boolean isUninstallBlocked(ComponentName who, String packageName) { 5397 // This function should return true if and only if the package is blocked by 5398 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 5399 // when the package is a system app, or when it is an active device admin. 5400 final int userId = UserHandle.getCallingUserId(); 5401 5402 synchronized (this) { 5403 if (who != null) { 5404 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5405 } 5406 5407 long id = Binder.clearCallingIdentity(); 5408 try { 5409 IPackageManager pm = AppGlobals.getPackageManager(); 5410 return pm.getBlockUninstallForUser(packageName, userId); 5411 } catch (RemoteException re) { 5412 // Shouldn't happen. 5413 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 5414 } finally { 5415 restoreCallingIdentity(id); 5416 } 5417 } 5418 return false; 5419 } 5420 5421 @Override 5422 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 5423 if (!mHasFeature) { 5424 return; 5425 } 5426 Preconditions.checkNotNull(who, "ComponentName is null"); 5427 synchronized (this) { 5428 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5429 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5430 if (admin.disableCallerId != disabled) { 5431 admin.disableCallerId = disabled; 5432 saveSettingsLocked(UserHandle.getCallingUserId()); 5433 } 5434 } 5435 } 5436 5437 @Override 5438 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 5439 if (!mHasFeature) { 5440 return false; 5441 } 5442 Preconditions.checkNotNull(who, "ComponentName is null"); 5443 synchronized (this) { 5444 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5445 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5446 return admin.disableCallerId; 5447 } 5448 } 5449 5450 @Override 5451 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 5452 // TODO: Should there be a check to make sure this relationship is within a profile group? 5453 //enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 5454 synchronized (this) { 5455 ActiveAdmin admin = getProfileOwnerAdmin(userId); 5456 return (admin != null) ? admin.disableCallerId : false; 5457 } 5458 } 5459 5460 @Override 5461 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 5462 Intent originalIntent) { 5463 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent( 5464 actualLookupKey, actualContactId, originalIntent); 5465 final int callingUserId = UserHandle.getCallingUserId(); 5466 5467 final long ident = Binder.clearCallingIdentity(); 5468 try { 5469 synchronized (this) { 5470 final int managedUserId = getManagedUserId(callingUserId); 5471 if (managedUserId < 0) { 5472 return; 5473 } 5474 if (getCrossProfileCallerIdDisabledForUser(managedUserId)) { 5475 if (VERBOSE_LOG) { 5476 Log.v(LOG_TAG, 5477 "Cross-profile contacts access disabled for user " + managedUserId); 5478 } 5479 return; 5480 } 5481 ContactsInternal.startQuickContactWithErrorToastForUser( 5482 mContext, intent, new UserHandle(managedUserId)); 5483 } 5484 } finally { 5485 Binder.restoreCallingIdentity(ident); 5486 } 5487 } 5488 5489 /** 5490 * @return the user ID of the managed user that is linked to the current user, if any. 5491 * Otherwise -1. 5492 */ 5493 public int getManagedUserId(int callingUserId) { 5494 if (VERBOSE_LOG) { 5495 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 5496 } 5497 5498 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 5499 if (ui.id == callingUserId || !ui.isManagedProfile()) { 5500 continue; // Caller user self, or not a managed profile. Skip. 5501 } 5502 if (VERBOSE_LOG) { 5503 Log.v(LOG_TAG, "Managed user=" + ui.id); 5504 } 5505 return ui.id; 5506 } 5507 if (VERBOSE_LOG) { 5508 Log.v(LOG_TAG, "Managed user not found."); 5509 } 5510 return -1; 5511 } 5512 5513 /** 5514 * Sets which packages may enter lock task mode. 5515 * 5516 * This function can only be called by the device owner. 5517 * @param packages The list of packages allowed to enter lock task mode. 5518 */ 5519 public void setLockTaskPackages(ComponentName who, String[] packages) throws SecurityException { 5520 Preconditions.checkNotNull(who, "ComponentName is null"); 5521 synchronized (this) { 5522 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5523 5524 int userHandle = Binder.getCallingUserHandle().getIdentifier(); 5525 DevicePolicyData policy = getUserData(userHandle); 5526 policy.mLockTaskPackages.clear(); 5527 if (packages != null) { 5528 for (int j = 0; j < packages.length; j++) { 5529 String pkg = packages[j]; 5530 policy.mLockTaskPackages.add(pkg); 5531 } 5532 } 5533 5534 // Store the settings persistently. 5535 saveSettingsLocked(userHandle); 5536 } 5537 } 5538 5539 /** 5540 * This function returns the list of components allowed to start the task lock mode. 5541 */ 5542 public String[] getLockTaskPackages(ComponentName who) { 5543 Preconditions.checkNotNull(who, "ComponentName is null"); 5544 synchronized (this) { 5545 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5546 5547 int userHandle = Binder.getCallingUserHandle().getIdentifier(); 5548 DevicePolicyData policy = getUserData(userHandle); 5549 return policy.mLockTaskPackages.toArray(new String[policy.mLockTaskPackages.size()]); 5550 } 5551 } 5552 5553 /** 5554 * This function lets the caller know whether the given package is allowed to start the 5555 * lock task mode. 5556 * @param pkg The package to check 5557 */ 5558 public boolean isLockTaskPermitted(String pkg) { 5559 // Get current user's devicepolicy 5560 int uid = Binder.getCallingUid(); 5561 int userHandle = UserHandle.getUserId(uid); 5562 DevicePolicyData policy = getUserData(userHandle); 5563 synchronized (this) { 5564 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 5565 String lockTaskPackage = policy.mLockTaskPackages.get(i); 5566 5567 // If the given package equals one of the packages stored our list, 5568 // we allow this package to start lock task mode. 5569 if (lockTaskPackage.equals(pkg)) { 5570 return true; 5571 } 5572 } 5573 } 5574 return false; 5575 } 5576 5577 @Override 5578 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 5579 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 5580 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 5581 } 5582 synchronized (this) { 5583 final DevicePolicyData policy = getUserData(userHandle); 5584 Bundle adminExtras = new Bundle(); 5585 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 5586 for (ActiveAdmin admin : policy.mAdminList) { 5587 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 5588 boolean ownsProfile = (getProfileOwner(userHandle) != null 5589 && getProfileOwner(userHandle).equals(admin.info.getPackageName())); 5590 if (ownsDevice || ownsProfile) { 5591 if (isEnabled) { 5592 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 5593 adminExtras, null); 5594 } else { 5595 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 5596 } 5597 } 5598 } 5599 } 5600 } 5601 5602 @Override 5603 public void setGlobalSetting(ComponentName who, String setting, String value) { 5604 final ContentResolver contentResolver = mContext.getContentResolver(); 5605 Preconditions.checkNotNull(who, "ComponentName is null"); 5606 5607 synchronized (this) { 5608 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5609 5610 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 5611 // BLUETOOTH_ON and WIFI_ON used to be supported but not any more. We do not want to 5612 // throw a SecurityException not to break apps. 5613 if (!Settings.Global.BLUETOOTH_ON.equals(setting) 5614 && !Settings.Global.WIFI_ON.equals(setting)) { 5615 throw new SecurityException(String.format( 5616 "Permission denial: device owners cannot update %1$s", setting)); 5617 } 5618 } 5619 5620 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 5621 // ignore if it contradicts an existing policy 5622 long timeMs = getMaximumTimeToLock(who, UserHandle.getCallingUserId()); 5623 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 5624 return; 5625 } 5626 } 5627 5628 long id = Binder.clearCallingIdentity(); 5629 try { 5630 Settings.Global.putString(contentResolver, setting, value); 5631 } finally { 5632 restoreCallingIdentity(id); 5633 } 5634 } 5635 } 5636 5637 @Override 5638 public void setSecureSetting(ComponentName who, String setting, String value) { 5639 Preconditions.checkNotNull(who, "ComponentName is null"); 5640 int callingUserId = UserHandle.getCallingUserId(); 5641 final ContentResolver contentResolver = mContext.getContentResolver(); 5642 5643 synchronized (this) { 5644 ActiveAdmin activeAdmin = 5645 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5646 5647 if (isDeviceOwner(activeAdmin.info.getPackageName())) { 5648 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 5649 throw new SecurityException(String.format( 5650 "Permission denial: Device owners cannot update %1$s", setting)); 5651 } 5652 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 5653 throw new SecurityException(String.format( 5654 "Permission denial: Profile owners cannot update %1$s", setting)); 5655 } 5656 5657 long id = Binder.clearCallingIdentity(); 5658 try { 5659 Settings.Secure.putStringForUser(contentResolver, setting, value, callingUserId); 5660 } finally { 5661 restoreCallingIdentity(id); 5662 } 5663 } 5664 } 5665 5666 @Override 5667 public void setMasterVolumeMuted(ComponentName who, boolean on) { 5668 Preconditions.checkNotNull(who, "ComponentName is null"); 5669 synchronized (this) { 5670 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5671 5672 IAudioService iAudioService = IAudioService.Stub.asInterface( 5673 ServiceManager.getService(Context.AUDIO_SERVICE)); 5674 try { 5675 iAudioService.setMasterMute(on, 0, who.getPackageName()); 5676 } catch (RemoteException re) { 5677 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 5678 } 5679 } 5680 } 5681 5682 @Override 5683 public boolean isMasterVolumeMuted(ComponentName who) { 5684 Preconditions.checkNotNull(who, "ComponentName is null"); 5685 synchronized (this) { 5686 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5687 5688 AudioManager audioManager = 5689 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 5690 return audioManager.isMasterMute(); 5691 } 5692 } 5693 5694 @Override 5695 public void setUserIcon(ComponentName who, Bitmap icon) { 5696 synchronized (this) { 5697 Preconditions.checkNotNull(who, "ComponentName is null"); 5698 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5699 5700 int userId = UserHandle.getCallingUserId(); 5701 long id = Binder.clearCallingIdentity(); 5702 try { 5703 mUserManager.setUserIcon(userId, icon); 5704 } finally { 5705 restoreCallingIdentity(id); 5706 } 5707 } 5708 } 5709 5710 /** 5711 * We need to update the internal state of whether a user has completed setup once. After 5712 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 5713 * as we don't trust any apps that might try to reset it. 5714 * <p> 5715 * Unfortunately, we don't know which user's setup state was changed, so we write all of 5716 * them. 5717 */ 5718 void updateUserSetupComplete() { 5719 List<UserInfo> users = mUserManager.getUsers(true); 5720 ContentResolver resolver = mContext.getContentResolver(); 5721 final int N = users.size(); 5722 for (int i = 0; i < N; i++) { 5723 int userHandle = users.get(i).id; 5724 if (Settings.Secure.getIntForUser(resolver, Settings.Secure.USER_SETUP_COMPLETE, 0, 5725 userHandle) != 0) { 5726 DevicePolicyData policy = getUserData(userHandle); 5727 if (!policy.mUserSetupComplete) { 5728 policy.mUserSetupComplete = true; 5729 synchronized (this) { 5730 saveSettingsLocked(userHandle); 5731 } 5732 } 5733 } 5734 } 5735 } 5736 5737 private class SetupContentObserver extends ContentObserver { 5738 5739 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 5740 Settings.Secure.USER_SETUP_COMPLETE); 5741 5742 public SetupContentObserver(Handler handler) { 5743 super(handler); 5744 } 5745 5746 void register(ContentResolver resolver) { 5747 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 5748 } 5749 5750 @Override 5751 public void onChange(boolean selfChange, Uri uri) { 5752 if (mUserSetupComplete.equals(uri)) { 5753 updateUserSetupComplete(); 5754 } 5755 } 5756 } 5757 5758 private final class LocalService extends DevicePolicyManagerInternal { 5759 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 5760 5761 @Override 5762 public List<String> getCrossProfileWidgetProviders(int profileId) { 5763 synchronized (DevicePolicyManagerService.this) { 5764 if (mDeviceOwner == null) { 5765 return Collections.emptyList(); 5766 } 5767 ComponentName ownerComponent = mDeviceOwner.getProfileOwnerComponent(profileId); 5768 if (ownerComponent == null) { 5769 return Collections.emptyList(); 5770 } 5771 5772 DevicePolicyData policy = getUserDataUnchecked(profileId); 5773 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 5774 5775 if (admin == null || admin.crossProfileWidgetProviders == null 5776 || admin.crossProfileWidgetProviders.isEmpty()) { 5777 return Collections.emptyList(); 5778 } 5779 5780 return admin.crossProfileWidgetProviders; 5781 } 5782 } 5783 5784 @Override 5785 public void addOnCrossProfileWidgetProvidersChangeListener( 5786 OnCrossProfileWidgetProvidersChangeListener listener) { 5787 synchronized (DevicePolicyManagerService.this) { 5788 if (mWidgetProviderListeners == null) { 5789 mWidgetProviderListeners = new ArrayList<>(); 5790 } 5791 if (!mWidgetProviderListeners.contains(listener)) { 5792 mWidgetProviderListeners.add(listener); 5793 } 5794 } 5795 } 5796 5797 @Override 5798 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 5799 final int userId = UserHandle.getUserId(uid); 5800 synchronized(DevicePolicyManagerService.this) { 5801 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 5802 } 5803 } 5804 5805 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 5806 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 5807 synchronized (DevicePolicyManagerService.this) { 5808 listeners = new ArrayList<>(mWidgetProviderListeners); 5809 } 5810 final int listenerCount = listeners.size(); 5811 for (int i = 0; i < listenerCount; i++) { 5812 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 5813 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 5814 } 5815 } 5816 } 5817 5818 /** 5819 * Returns true if specified admin is allowed to limit passwords and has a 5820 * {@code passwordQuality} of at least {@code minPasswordQuality} 5821 */ 5822 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 5823 if (admin.passwordQuality < minPasswordQuality) { 5824 return false; 5825 } 5826 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 5827 } 5828} 5829