DevicePolicyManagerService.java revision fadb2b3a27e4c23f5c566e6f7eadfaed9e23e68c
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.WIPE_EXTERNAL_STORAGE; 21import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 22import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES; 23 24import android.accessibilityservice.AccessibilityServiceInfo; 25import android.accounts.AccountManager; 26import android.app.Activity; 27import android.app.ActivityManagerNative; 28import android.app.AlarmManager; 29import android.app.AppGlobals; 30import android.app.IActivityManager; 31import android.app.Notification; 32import android.app.NotificationManager; 33import android.app.PendingIntent; 34import android.app.admin.DeviceAdminInfo; 35import android.app.admin.DeviceAdminReceiver; 36import android.app.admin.DevicePolicyManager; 37import android.app.admin.DevicePolicyManagerInternal; 38import android.app.admin.IDevicePolicyManager; 39import android.app.backup.IBackupManager; 40import android.content.BroadcastReceiver; 41import android.content.ComponentName; 42import android.content.ContentResolver; 43import android.content.Context; 44import android.content.Intent; 45import android.content.IntentFilter; 46import android.content.pm.ApplicationInfo; 47import android.content.pm.IPackageManager; 48import android.content.pm.PackageManager; 49import android.content.pm.PackageManager.NameNotFoundException; 50import android.content.pm.ResolveInfo; 51import android.content.pm.UserInfo; 52import android.database.ContentObserver; 53import android.hardware.usb.UsbManager; 54import android.media.AudioManager; 55import android.media.IAudioService; 56import android.net.ConnectivityManager; 57import android.net.ProxyInfo; 58import android.net.Uri; 59import android.os.AsyncTask; 60import android.os.Binder; 61import android.os.Bundle; 62import android.os.Environment; 63import android.os.Handler; 64import android.os.IBinder; 65import android.os.PersistableBundle; 66import android.os.PowerManager; 67import android.os.PowerManagerInternal; 68import android.os.Process; 69import android.os.RecoverySystem; 70import android.os.RemoteCallback; 71import android.os.RemoteException; 72import android.os.ServiceManager; 73import android.os.SystemClock; 74import android.os.SystemProperties; 75import android.os.UserHandle; 76import android.os.UserManager; 77import android.provider.Settings; 78import android.security.Credentials; 79import android.security.IKeyChainService; 80import android.security.KeyChain; 81import android.security.KeyChain.KeyChainConnection; 82import android.text.TextUtils; 83import android.service.persistentdata.PersistentDataBlockManager; 84import android.util.Log; 85import android.util.PrintWriterPrinter; 86import android.util.Printer; 87import android.util.Slog; 88import android.util.SparseArray; 89import android.util.Xml; 90import android.view.accessibility.AccessibilityManager; 91import android.view.accessibility.IAccessibilityManager; 92import android.view.inputmethod.InputMethodInfo; 93import android.view.inputmethod.InputMethodManager; 94import android.view.IWindowManager; 95 96import com.android.internal.R; 97import com.android.internal.os.storage.ExternalStorageFormatter; 98import com.android.internal.util.FastXmlSerializer; 99import com.android.internal.util.JournaledFile; 100import com.android.internal.util.XmlUtils; 101import com.android.internal.widget.LockPatternUtils; 102import com.android.server.LocalServices; 103import com.android.server.SystemService; 104import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 105 106import org.xmlpull.v1.XmlPullParser; 107 108import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 109import static org.xmlpull.v1.XmlPullParser.END_TAG; 110import static org.xmlpull.v1.XmlPullParser.TEXT; 111 112import org.xmlpull.v1.XmlPullParserException; 113import org.xmlpull.v1.XmlSerializer; 114 115import java.io.ByteArrayInputStream; 116import java.io.File; 117import java.io.FileDescriptor; 118import java.io.FileInputStream; 119import java.io.FileNotFoundException; 120import java.io.FileOutputStream; 121import java.io.IOException; 122import java.io.PrintWriter; 123import java.security.cert.CertificateException; 124import java.security.cert.CertificateFactory; 125import java.security.cert.X509Certificate; 126import java.text.DateFormat; 127import java.util.ArrayList; 128import java.util.Collections; 129import java.util.Date; 130import java.util.HashMap; 131import java.util.HashSet; 132import java.util.List; 133import java.util.Map.Entry; 134import java.util.Set; 135 136/** 137 * Implementation of the device policy APIs. 138 */ 139public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 140 141 private static final String LOG_TAG = "DevicePolicyManagerService"; 142 143 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 144 145 private static final String LOCK_TASK_COMPONENTS_XML = "lock-task-component"; 146 147 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 148 149 private static final long MS_PER_DAY = 86400 * 1000; 150 151 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 152 153 protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 154 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 155 156 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 157 158 private static final boolean DBG = false; 159 160 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 161 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 162 163 private static final Set<String> DEVICE_OWNER_USER_RESTRICTIONS; 164 static { 165 DEVICE_OWNER_USER_RESTRICTIONS = new HashSet(); 166 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_USB_FILE_TRANSFER); 167 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_TETHERING); 168 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_FACTORY_RESET); 169 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADD_USER); 170 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_CELL_BROADCASTS); 171 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS); 172 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_MOUNT_PHYSICAL_MEDIA); 173 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_UNMUTE_MICROPHONE); 174 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADJUST_VOLUME); 175 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SMS); 176 } 177 178 private static final Set<String> SECURE_SETTINGS_WHITELIST; 179 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 180 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 181 static { 182 SECURE_SETTINGS_WHITELIST = new HashSet(); 183 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 184 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 185 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 186 187 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new HashSet(); 188 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 189 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 190 191 GLOBAL_SETTINGS_WHITELIST = new HashSet(); 192 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 193 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 194 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 195 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.BLUETOOTH_ON); 196 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 197 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 198 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.MODE_RINGER); 199 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.NETWORK_PREFERENCE); 200 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 201 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_ON); 202 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 203 } 204 205 final Context mContext; 206 final UserManager mUserManager; 207 final PowerManager.WakeLock mWakeLock; 208 209 final LocalService mLocalService; 210 211 final PowerManager mPowerManager; 212 final PowerManagerInternal mPowerManagerInternal; 213 214 IWindowManager mIWindowManager; 215 NotificationManager mNotificationManager; 216 217 // Stores and loads state on device and profile owners. 218 private DeviceOwner mDeviceOwner; 219 220 /** 221 * Whether or not device admin feature is supported. If it isn't return defaults for all 222 * public methods. 223 */ 224 private boolean mHasFeature; 225 226 public static final class Lifecycle extends SystemService { 227 private DevicePolicyManagerService mService; 228 229 public Lifecycle(Context context) { 230 super(context); 231 mService = new DevicePolicyManagerService(context); 232 } 233 234 @Override 235 public void onStart() { 236 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 237 } 238 239 @Override 240 public void onBootPhase(int phase) { 241 if (phase == PHASE_LOCK_SETTINGS_READY) { 242 mService.systemReady(); 243 } 244 } 245 } 246 247 public static class DevicePolicyData { 248 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 249 int mActivePasswordLength = 0; 250 int mActivePasswordUpperCase = 0; 251 int mActivePasswordLowerCase = 0; 252 int mActivePasswordLetters = 0; 253 int mActivePasswordNumeric = 0; 254 int mActivePasswordSymbols = 0; 255 int mActivePasswordNonLetter = 0; 256 int mFailedPasswordAttempts = 0; 257 258 int mUserHandle; 259 int mPasswordOwner = -1; 260 long mLastMaximumTimeToLock = -1; 261 boolean mUserSetupComplete = false; 262 263 final HashMap<ComponentName, ActiveAdmin> mAdminMap 264 = new HashMap<ComponentName, ActiveAdmin>(); 265 final ArrayList<ActiveAdmin> mAdminList 266 = new ArrayList<ActiveAdmin>(); 267 final ArrayList<ComponentName> mRemovingAdmins 268 = new ArrayList<ComponentName>(); 269 270 // This is the list of component allowed to start lock task mode. 271 final List<String> mLockTaskPackages = new ArrayList<String>(); 272 273 ComponentName mRestrictionsProvider; 274 275 public DevicePolicyData(int userHandle) { 276 mUserHandle = userHandle; 277 } 278 } 279 280 final SparseArray<DevicePolicyData> mUserData = new SparseArray<DevicePolicyData>(); 281 282 Handler mHandler = new Handler(); 283 284 BroadcastReceiver mReceiver = new BroadcastReceiver() { 285 @Override 286 public void onReceive(Context context, Intent intent) { 287 final String action = intent.getAction(); 288 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 289 getSendingUserId()); 290 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 291 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 292 if (DBG) Slog.v(LOG_TAG, "Sending password expiration notifications for action " 293 + action + " for user " + userHandle); 294 mHandler.post(new Runnable() { 295 public void run() { 296 handlePasswordExpirationNotification(userHandle); 297 } 298 }); 299 } 300 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 301 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 302 new MonitoringCertNotificationTask().execute(intent); 303 } 304 if (Intent.ACTION_USER_REMOVED.equals(action)) { 305 removeUserData(userHandle); 306 } else if (Intent.ACTION_USER_STARTED.equals(action) 307 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 308 309 if (Intent.ACTION_USER_STARTED.equals(action)) { 310 // Reset the policy data 311 synchronized (DevicePolicyManagerService.this) { 312 mUserData.remove(userHandle); 313 } 314 } 315 handlePackagesChanged(null /* check all admins */, userHandle); 316 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 317 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 318 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 319 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 320 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 321 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 322 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 323 } 324 } 325 }; 326 327 static class ActiveAdmin { 328 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 329 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 330 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 331 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 332 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 333 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 334 private static final String TAG_ACCOUNT_TYPE = "account-type"; 335 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 336 = "permitted-accessiblity-services"; 337 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 338 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 339 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 340 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 341 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 342 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 343 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 344 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 345 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 346 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 347 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 348 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 349 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 350 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 351 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 352 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 353 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 354 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 355 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 356 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 357 private static final String ATTR_VALUE = "value"; 358 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 359 private static final String TAG_POLICIES = "policies"; 360 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 361 "cross-profile-widget-providers"; 362 private static final String TAG_PROVIDER = "provider"; 363 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 364 365 final DeviceAdminInfo info; 366 367 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 368 369 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 370 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 371 372 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 373 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 374 375 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 376 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 377 378 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 379 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 380 381 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 382 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 383 384 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 385 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 386 387 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 388 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 389 390 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 391 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 392 393 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 394 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 395 396 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 397 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 398 399 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 400 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 401 402 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 403 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 404 405 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 406 407 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 408 409 boolean encryptionRequested = false; 410 boolean disableCamera = false; 411 boolean disableCallerId = false; 412 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 413 boolean requireAutoTime = false; // Can only be set by a device owner. 414 415 static class TrustAgentInfo { 416 public PersistableBundle options; 417 TrustAgentInfo(PersistableBundle bundle) { 418 options = bundle; 419 } 420 } 421 422 Set<String> accountTypesWithManagementDisabled = new HashSet<String>(); 423 424 // The list of permitted accessibility services package namesas set by a profile 425 // or device owner. Null means all accessibility services are allowed, empty means 426 // none except system services are allowed. 427 List<String> permittedAccessiblityServices; 428 429 // The list of permitted input methods package names as set by a profile or device owner. 430 // Null means all input methods are allowed, empty means none except system imes are 431 // allowed. 432 List<String> permittedInputMethods; 433 434 // TODO: review implementation decisions with frameworks team 435 boolean specifiesGlobalProxy = false; 436 String globalProxySpec = null; 437 String globalProxyExclusionList = null; 438 439 HashMap<String, TrustAgentInfo> trustAgentInfos = new HashMap<String, TrustAgentInfo>(); 440 441 List<String> crossProfileWidgetProviders; 442 443 ActiveAdmin(DeviceAdminInfo _info) { 444 info = _info; 445 } 446 447 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 448 449 public UserHandle getUserHandle() { 450 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 451 } 452 453 void writeToXml(XmlSerializer out) 454 throws IllegalArgumentException, IllegalStateException, IOException { 455 out.startTag(null, TAG_POLICIES); 456 info.writePoliciesToXml(out); 457 out.endTag(null, TAG_POLICIES); 458 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 459 out.startTag(null, TAG_PASSWORD_QUALITY); 460 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 461 out.endTag(null, TAG_PASSWORD_QUALITY); 462 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 463 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 464 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 465 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 466 } 467 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 468 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 469 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 470 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 471 } 472 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 473 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 474 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 475 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 476 } 477 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 478 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 479 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 480 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 481 } 482 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 483 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 484 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 485 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 486 } 487 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 488 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 489 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 490 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 491 } 492 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 493 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 494 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 495 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 496 } 497 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 498 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 499 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 500 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 501 } 502 } 503 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 504 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 505 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 506 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 507 } 508 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 509 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 510 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 511 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 512 } 513 if (specifiesGlobalProxy) { 514 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 515 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 516 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 517 if (globalProxySpec != null) { 518 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 519 out.attribute(null, ATTR_VALUE, globalProxySpec); 520 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 521 } 522 if (globalProxyExclusionList != null) { 523 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 524 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 525 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 526 } 527 } 528 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 529 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 530 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 531 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 532 } 533 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 534 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 535 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 536 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 537 } 538 if (encryptionRequested) { 539 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 540 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 541 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 542 } 543 if (disableCamera) { 544 out.startTag(null, TAG_DISABLE_CAMERA); 545 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 546 out.endTag(null, TAG_DISABLE_CAMERA); 547 } 548 if (disableCallerId) { 549 out.startTag(null, TAG_DISABLE_CALLER_ID); 550 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 551 out.endTag(null, TAG_DISABLE_CALLER_ID); 552 } 553 if (disableScreenCapture) { 554 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 555 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 556 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 557 } 558 if (requireAutoTime) { 559 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 560 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 561 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 562 } 563 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 564 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 565 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 566 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 567 } 568 if (!accountTypesWithManagementDisabled.isEmpty()) { 569 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 570 for (String ac : accountTypesWithManagementDisabled) { 571 out.startTag(null, TAG_ACCOUNT_TYPE); 572 out.attribute(null, ATTR_VALUE, ac); 573 out.endTag(null, TAG_ACCOUNT_TYPE); 574 } 575 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 576 } 577 if (!trustAgentInfos.isEmpty()) { 578 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 579 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 580 for (Entry<String, TrustAgentInfo> entry : set) { 581 TrustAgentInfo trustAgentInfo = entry.getValue(); 582 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 583 out.attribute(null, ATTR_VALUE, entry.getKey()); 584 if (trustAgentInfo.options != null) { 585 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 586 try { 587 trustAgentInfo.options.saveToXml(out); 588 } catch (XmlPullParserException e) { 589 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 590 } 591 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 592 } 593 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 594 } 595 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 596 } 597 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 598 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 599 final int providerCount = crossProfileWidgetProviders.size(); 600 for (int i = 0; i < providerCount; i++) { 601 String provider = crossProfileWidgetProviders.get(i); 602 out.startTag(null, TAG_PROVIDER); 603 out.attribute(null, ATTR_VALUE, provider); 604 out.endTag(null, TAG_PROVIDER); 605 } 606 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 607 } 608 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 609 permittedAccessiblityServices); 610 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 611 } 612 613 void writePackageListToXml(XmlSerializer out, String outerTag, 614 List<String> packageList) 615 throws IllegalArgumentException, IllegalStateException, IOException { 616 if (packageList == null) { 617 return; 618 } 619 620 out.startTag(null, outerTag); 621 for (String packageName : packageList) { 622 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 623 out.attribute(null, ATTR_VALUE, packageName); 624 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 625 } 626 out.endTag(null, outerTag); 627 } 628 629 void readFromXml(XmlPullParser parser) 630 throws XmlPullParserException, IOException { 631 int outerDepth = parser.getDepth(); 632 int type; 633 while ((type=parser.next()) != END_DOCUMENT 634 && (type != END_TAG || parser.getDepth() > outerDepth)) { 635 if (type == END_TAG || type == TEXT) { 636 continue; 637 } 638 String tag = parser.getName(); 639 if (TAG_POLICIES.equals(tag)) { 640 info.readPoliciesFromXml(parser); 641 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 642 passwordQuality = Integer.parseInt( 643 parser.getAttributeValue(null, ATTR_VALUE)); 644 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 645 minimumPasswordLength = Integer.parseInt( 646 parser.getAttributeValue(null, ATTR_VALUE)); 647 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 648 passwordHistoryLength = Integer.parseInt( 649 parser.getAttributeValue(null, ATTR_VALUE)); 650 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 651 minimumPasswordUpperCase = Integer.parseInt( 652 parser.getAttributeValue(null, ATTR_VALUE)); 653 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 654 minimumPasswordLowerCase = Integer.parseInt( 655 parser.getAttributeValue(null, ATTR_VALUE)); 656 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 657 minimumPasswordLetters = Integer.parseInt( 658 parser.getAttributeValue(null, ATTR_VALUE)); 659 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 660 minimumPasswordNumeric = Integer.parseInt( 661 parser.getAttributeValue(null, ATTR_VALUE)); 662 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 663 minimumPasswordSymbols = Integer.parseInt( 664 parser.getAttributeValue(null, ATTR_VALUE)); 665 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 666 minimumPasswordNonLetter = Integer.parseInt( 667 parser.getAttributeValue(null, ATTR_VALUE)); 668 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 669 maximumTimeToUnlock = Long.parseLong( 670 parser.getAttributeValue(null, ATTR_VALUE)); 671 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 672 maximumFailedPasswordsForWipe = Integer.parseInt( 673 parser.getAttributeValue(null, ATTR_VALUE)); 674 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 675 specifiesGlobalProxy = Boolean.parseBoolean( 676 parser.getAttributeValue(null, ATTR_VALUE)); 677 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 678 globalProxySpec = 679 parser.getAttributeValue(null, ATTR_VALUE); 680 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 681 globalProxyExclusionList = 682 parser.getAttributeValue(null, ATTR_VALUE); 683 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 684 passwordExpirationTimeout = Long.parseLong( 685 parser.getAttributeValue(null, ATTR_VALUE)); 686 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 687 passwordExpirationDate = Long.parseLong( 688 parser.getAttributeValue(null, ATTR_VALUE)); 689 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 690 encryptionRequested = Boolean.parseBoolean( 691 parser.getAttributeValue(null, ATTR_VALUE)); 692 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 693 disableCamera = Boolean.parseBoolean( 694 parser.getAttributeValue(null, ATTR_VALUE)); 695 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 696 disableCallerId = Boolean.parseBoolean( 697 parser.getAttributeValue(null, ATTR_VALUE)); 698 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 699 disableScreenCapture = Boolean.parseBoolean( 700 parser.getAttributeValue(null, ATTR_VALUE)); 701 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 702 requireAutoTime= Boolean.parseBoolean( 703 parser.getAttributeValue(null, ATTR_VALUE)); 704 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 705 disabledKeyguardFeatures = Integer.parseInt( 706 parser.getAttributeValue(null, ATTR_VALUE)); 707 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 708 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 709 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 710 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 711 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 712 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 713 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 714 permittedAccessiblityServices = readPackageList(parser, tag); 715 } else if (TAG_PERMITTED_IMES.equals(tag)) { 716 permittedInputMethods = readPackageList(parser, tag); 717 } else { 718 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 719 } 720 XmlUtils.skipCurrentTag(parser); 721 } 722 } 723 724 private List<String> readPackageList(XmlPullParser parser, 725 String tag) throws XmlPullParserException, IOException { 726 List<String> result = new ArrayList<String>(); 727 int outerDepth = parser.getDepth(); 728 int outerType; 729 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 730 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 731 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 732 continue; 733 } 734 String outerTag = parser.getName(); 735 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 736 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 737 if (packageName != null) { 738 result.add(packageName); 739 } else { 740 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 741 } 742 } else { 743 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 744 } 745 } 746 return result; 747 } 748 749 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 750 throws XmlPullParserException, IOException { 751 int outerDepthDAM = parser.getDepth(); 752 int typeDAM; 753 Set<String> result = new HashSet<String>(); 754 while ((typeDAM=parser.next()) != END_DOCUMENT 755 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 756 if (typeDAM == END_TAG || typeDAM == TEXT) { 757 continue; 758 } 759 String tagDAM = parser.getName(); 760 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 761 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 762 } else { 763 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 764 } 765 } 766 return result; 767 } 768 769 private HashMap<String, TrustAgentInfo> getAllTrustAgentInfos( 770 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 771 int outerDepthDAM = parser.getDepth(); 772 int typeDAM; 773 HashMap<String, TrustAgentInfo> result = new HashMap<String, TrustAgentInfo>(); 774 while ((typeDAM=parser.next()) != END_DOCUMENT 775 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 776 if (typeDAM == END_TAG || typeDAM == TEXT) { 777 continue; 778 } 779 String tagDAM = parser.getName(); 780 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 781 final String component = parser.getAttributeValue(null, ATTR_VALUE); 782 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 783 result.put(component, trustAgentInfo); 784 } else { 785 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 786 } 787 } 788 return result; 789 } 790 791 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 792 throws XmlPullParserException, IOException { 793 int outerDepthDAM = parser.getDepth(); 794 int typeDAM; 795 TrustAgentInfo result = new TrustAgentInfo(null); 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_OPTIONS.equals(tagDAM)) { 803 PersistableBundle bundle = new PersistableBundle(); 804 bundle.restoreFromXml(parser); 805 result.options = bundle; 806 } else { 807 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 808 } 809 } 810 return result; 811 } 812 813 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 814 throws XmlPullParserException, IOException { 815 int outerDepthDAM = parser.getDepth(); 816 int typeDAM; 817 ArrayList<String> result = 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_PROVIDER.equals(tagDAM)) { 825 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 826 if (result == null) { 827 result = new ArrayList<>(); 828 } 829 result.add(provider); 830 } else { 831 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 832 } 833 } 834 return result; 835 } 836 837 void dump(String prefix, PrintWriter pw) { 838 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 839 pw.print(prefix); pw.println("policies:"); 840 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 841 if (pols != null) { 842 for (int i=0; i<pols.size(); i++) { 843 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 844 } 845 } 846 pw.print(prefix); pw.print("passwordQuality=0x"); 847 pw.println(Integer.toHexString(passwordQuality)); 848 pw.print(prefix); pw.print("minimumPasswordLength="); 849 pw.println(minimumPasswordLength); 850 pw.print(prefix); pw.print("passwordHistoryLength="); 851 pw.println(passwordHistoryLength); 852 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 853 pw.println(minimumPasswordUpperCase); 854 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 855 pw.println(minimumPasswordLowerCase); 856 pw.print(prefix); pw.print("minimumPasswordLetters="); 857 pw.println(minimumPasswordLetters); 858 pw.print(prefix); pw.print("minimumPasswordNumeric="); 859 pw.println(minimumPasswordNumeric); 860 pw.print(prefix); pw.print("minimumPasswordSymbols="); 861 pw.println(minimumPasswordSymbols); 862 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 863 pw.println(minimumPasswordNonLetter); 864 pw.print(prefix); pw.print("maximumTimeToUnlock="); 865 pw.println(maximumTimeToUnlock); 866 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 867 pw.println(maximumFailedPasswordsForWipe); 868 pw.print(prefix); pw.print("specifiesGlobalProxy="); 869 pw.println(specifiesGlobalProxy); 870 pw.print(prefix); pw.print("passwordExpirationTimeout="); 871 pw.println(passwordExpirationTimeout); 872 pw.print(prefix); pw.print("passwordExpirationDate="); 873 pw.println(passwordExpirationDate); 874 if (globalProxySpec != null) { 875 pw.print(prefix); pw.print("globalProxySpec="); 876 pw.println(globalProxySpec); 877 } 878 if (globalProxyExclusionList != null) { 879 pw.print(prefix); pw.print("globalProxyEclusionList="); 880 pw.println(globalProxyExclusionList); 881 } 882 pw.print(prefix); pw.print("encryptionRequested="); 883 pw.println(encryptionRequested); 884 pw.print(prefix); pw.print("disableCamera="); 885 pw.println(disableCamera); 886 pw.print(prefix); pw.print("disableCallerId="); 887 pw.println(disableCallerId); 888 pw.print(prefix); pw.print("disableScreenCapture="); 889 pw.println(disableScreenCapture); 890 pw.print(prefix); pw.print("requireAutoTime="); 891 pw.println(requireAutoTime); 892 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 893 pw.println(disabledKeyguardFeatures); 894 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 895 pw.println(crossProfileWidgetProviders); 896 if (!(permittedAccessiblityServices == null)) { 897 pw.print(prefix); pw.print("permittedAccessibilityServices="); 898 pw.println(permittedAccessiblityServices.toString()); 899 } 900 if (!(permittedInputMethods == null)) { 901 pw.print(prefix); pw.print("permittedInputMethods="); 902 pw.println(permittedInputMethods.toString()); 903 } 904 } 905 } 906 907 private void handlePackagesChanged(String packageName, int userHandle) { 908 boolean removed = false; 909 if (DBG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 910 DevicePolicyData policy = getUserData(userHandle); 911 IPackageManager pm = AppGlobals.getPackageManager(); 912 synchronized (this) { 913 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 914 ActiveAdmin aa = policy.mAdminList.get(i); 915 try { 916 // If we're checking all packages or if the specific one we're checking matches, 917 // then check if the package and receiver still exist. 918 final String adminPackage = aa.info.getPackageName(); 919 if (packageName == null || packageName.equals(adminPackage)) { 920 if (pm.getPackageInfo(adminPackage, 0, userHandle) == null 921 || pm.getReceiverInfo(aa.info.getComponent(), 0, userHandle) 922 == null) { 923 removed = true; 924 policy.mAdminList.remove(i); 925 policy.mAdminMap.remove(aa.info.getComponent()); 926 } 927 } 928 } catch (RemoteException re) { 929 // Shouldn't happen 930 } 931 } 932 if (removed) { 933 validatePasswordOwnerLocked(policy); 934 syncDeviceCapabilitiesLocked(policy); 935 saveSettingsLocked(policy.mUserHandle); 936 } 937 } 938 } 939 940 /** 941 * Instantiates the service. 942 */ 943 public DevicePolicyManagerService(Context context) { 944 mContext = context; 945 mUserManager = UserManager.get(mContext); 946 mHasFeature = context.getPackageManager().hasSystemFeature( 947 PackageManager.FEATURE_DEVICE_ADMIN); 948 mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE); 949 mPowerManagerInternal = LocalServices.getService(PowerManagerInternal.class); 950 mWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "DPM"); 951 mLocalService = new LocalService(); 952 if (!mHasFeature) { 953 // Skip the rest of the initialization 954 return; 955 } 956 IntentFilter filter = new IntentFilter(); 957 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 958 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 959 filter.addAction(Intent.ACTION_USER_REMOVED); 960 filter.addAction(Intent.ACTION_USER_STARTED); 961 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 962 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 963 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 964 filter = new IntentFilter(); 965 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 966 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 967 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 968 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 969 filter.addDataScheme("package"); 970 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 971 972 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 973 } 974 975 /** 976 * Creates and loads the policy data from xml. 977 * @param userHandle the user for whom to load the policy data 978 * @return 979 */ 980 DevicePolicyData getUserData(int userHandle) { 981 synchronized (this) { 982 DevicePolicyData policy = mUserData.get(userHandle); 983 if (policy == null) { 984 policy = new DevicePolicyData(userHandle); 985 mUserData.append(userHandle, policy); 986 loadSettingsLocked(policy, userHandle); 987 } 988 return policy; 989 } 990 } 991 992 /** 993 * Creates and loads the policy data from xml for data that is shared between 994 * various profiles of a user. In contrast to {@link #getUserData(int)} 995 * it allows access to data of users other than the calling user. 996 * 997 * This function should only be used for shared data, e.g. everything regarding 998 * passwords and should be removed once multiple screen locks are present. 999 * @param userHandle the user for whom to load the policy data 1000 * @return 1001 */ 1002 DevicePolicyData getUserDataUnchecked(int userHandle) { 1003 long ident = Binder.clearCallingIdentity(); 1004 try { 1005 return getUserData(userHandle); 1006 } finally { 1007 Binder.restoreCallingIdentity(ident); 1008 } 1009 } 1010 1011 void removeUserData(int userHandle) { 1012 synchronized (this) { 1013 if (userHandle == UserHandle.USER_OWNER) { 1014 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1015 return; 1016 } 1017 if (mDeviceOwner != null) { 1018 mDeviceOwner.removeProfileOwner(userHandle); 1019 mDeviceOwner.writeOwnerFile(); 1020 } 1021 1022 DevicePolicyData policy = mUserData.get(userHandle); 1023 if (policy != null) { 1024 mUserData.remove(userHandle); 1025 } 1026 File policyFile = new File(Environment.getUserSystemDirectory(userHandle), 1027 DEVICE_POLICIES_XML); 1028 policyFile.delete(); 1029 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1030 } 1031 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1032 } 1033 1034 void loadDeviceOwner() { 1035 synchronized (this) { 1036 mDeviceOwner = DeviceOwner.load(); 1037 } 1038 } 1039 1040 /** 1041 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1042 * reminders. Clears alarm if no expirations are configured. 1043 */ 1044 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1045 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1046 final long now = System.currentTimeMillis(); 1047 final long timeToExpire = expiration - now; 1048 final long alarmTime; 1049 if (expiration == 0) { 1050 // No expirations are currently configured: Cancel alarm. 1051 alarmTime = 0; 1052 } else if (timeToExpire <= 0) { 1053 // The password has already expired: Repeat every 24 hours. 1054 alarmTime = now + MS_PER_DAY; 1055 } else { 1056 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1057 // the expiration time. 1058 long alarmInterval = timeToExpire % MS_PER_DAY; 1059 if (alarmInterval == 0) { 1060 alarmInterval = MS_PER_DAY; 1061 } 1062 alarmTime = now + alarmInterval; 1063 } 1064 1065 long token = Binder.clearCallingIdentity(); 1066 try { 1067 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1068 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1069 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1070 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1071 new UserHandle(policy.mUserHandle)); 1072 am.cancel(pi); 1073 if (alarmTime != 0) { 1074 am.set(AlarmManager.RTC, alarmTime, pi); 1075 } 1076 } finally { 1077 Binder.restoreCallingIdentity(token); 1078 } 1079 } 1080 1081 private IWindowManager getWindowManager() { 1082 if (mIWindowManager == null) { 1083 IBinder b = ServiceManager.getService(Context.WINDOW_SERVICE); 1084 mIWindowManager = IWindowManager.Stub.asInterface(b); 1085 } 1086 return mIWindowManager; 1087 } 1088 1089 private NotificationManager getNotificationManager() { 1090 if (mNotificationManager == null) { 1091 mNotificationManager = 1092 (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE); 1093 } 1094 return mNotificationManager; 1095 } 1096 1097 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1098 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1099 if (admin != null 1100 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1101 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1102 return admin; 1103 } 1104 return null; 1105 } 1106 1107 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1108 throws SecurityException { 1109 final int callingUid = Binder.getCallingUid(); 1110 final int userHandle = UserHandle.getUserId(callingUid); 1111 final DevicePolicyData policy = getUserData(userHandle); 1112 1113 List<ActiveAdmin> candidates = new ArrayList<ActiveAdmin>(); 1114 1115 // Build a list of admins for this uid matching the given ComponentName 1116 if (who != null) { 1117 ActiveAdmin admin = policy.mAdminMap.get(who); 1118 if (admin == null) { 1119 throw new SecurityException("No active admin " + who); 1120 } 1121 if (admin.getUid() != callingUid) { 1122 throw new SecurityException("Admin " + who + " is not owned by uid " 1123 + Binder.getCallingUid()); 1124 } 1125 candidates.add(admin); 1126 } else { 1127 for (ActiveAdmin admin : policy.mAdminList) { 1128 if (admin.getUid() == callingUid) { 1129 candidates.add(admin); 1130 } 1131 } 1132 } 1133 1134 // Try to find an admin which can use reqPolicy 1135 for (ActiveAdmin admin : candidates) { 1136 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 1137 boolean ownsProfile = (getProfileOwner(userHandle) != null 1138 && getProfileOwner(userHandle).getPackageName() 1139 .equals(admin.info.getPackageName())); 1140 1141 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1142 if (ownsDevice) { 1143 return admin; 1144 } 1145 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1146 if (ownsDevice || ownsProfile) { 1147 return admin; 1148 } 1149 } else { 1150 if (admin.info.usesPolicy(reqPolicy)) { 1151 return admin; 1152 } 1153 } 1154 } 1155 1156 if (who != null) { 1157 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1158 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1159 + " does not own the device"); 1160 } 1161 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1162 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1163 + " does not own the profile"); 1164 } 1165 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1166 + " did not specify uses-policy for: " 1167 + candidates.get(0).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 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1175 sendAdminCommandLocked(admin, action, null); 1176 } 1177 1178 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1179 sendAdminCommandLocked(admin, action, null, result); 1180 } 1181 1182 /** 1183 * Send an update to one specific admin, get notified when that admin returns a result. 1184 */ 1185 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1186 BroadcastReceiver result) { 1187 Intent intent = new Intent(action); 1188 intent.setComponent(admin.info.getComponent()); 1189 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1190 intent.putExtra("expiration", admin.passwordExpirationDate); 1191 } 1192 if (adminExtras != null) { 1193 intent.putExtras(adminExtras); 1194 } 1195 if (result != null) { 1196 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1197 null, result, mHandler, Activity.RESULT_OK, null, null); 1198 } else { 1199 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1200 } 1201 } 1202 1203 /** 1204 * Send an update to all admins of a user that enforce a specified policy. 1205 */ 1206 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1207 final DevicePolicyData policy = getUserData(userHandle); 1208 final int count = policy.mAdminList.size(); 1209 if (count > 0) { 1210 for (int i = 0; i < count; i++) { 1211 final ActiveAdmin admin = policy.mAdminList.get(i); 1212 if (admin.info.usesPolicy(reqPolicy)) { 1213 sendAdminCommandLocked(admin, action); 1214 } 1215 } 1216 } 1217 } 1218 1219 /** 1220 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1221 * enforce a specified policy. 1222 */ 1223 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1224 int userHandle) { 1225 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1226 for (UserInfo ui : profiles) { 1227 int id = ui.id; 1228 sendAdminCommandLocked(action, reqPolicy, id); 1229 } 1230 } 1231 1232 void removeActiveAdminLocked(final ComponentName adminReceiver, int userHandle) { 1233 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1234 if (admin != null) { 1235 synchronized (this) { 1236 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 1237 } 1238 sendAdminCommandLocked(admin, 1239 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1240 new BroadcastReceiver() { 1241 @Override 1242 public void onReceive(Context context, Intent intent) { 1243 synchronized (DevicePolicyManagerService.this) { 1244 int userHandle = admin.getUserHandle().getIdentifier(); 1245 DevicePolicyData policy = getUserData(userHandle); 1246 boolean doProxyCleanup = admin.info.usesPolicy( 1247 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1248 policy.mAdminList.remove(admin); 1249 policy.mAdminMap.remove(adminReceiver); 1250 validatePasswordOwnerLocked(policy); 1251 syncDeviceCapabilitiesLocked(policy); 1252 if (doProxyCleanup) { 1253 resetGlobalProxyLocked(getUserData(userHandle)); 1254 } 1255 saveSettingsLocked(userHandle); 1256 updateMaximumTimeToLockLocked(policy); 1257 policy.mRemovingAdmins.remove(adminReceiver); 1258 } 1259 } 1260 }); 1261 } 1262 } 1263 1264 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) { 1265 if (!mHasFeature) { 1266 return null; 1267 } 1268 enforceCrossUserPermission(userHandle); 1269 Intent resolveIntent = new Intent(); 1270 resolveIntent.setComponent(adminName); 1271 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1272 resolveIntent, 1273 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1274 userHandle); 1275 if (infos == null || infos.size() <= 0) { 1276 throw new IllegalArgumentException("Unknown admin: " + adminName); 1277 } 1278 1279 try { 1280 return new DeviceAdminInfo(mContext, infos.get(0)); 1281 } catch (XmlPullParserException e) { 1282 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1283 e); 1284 return null; 1285 } catch (IOException e) { 1286 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1287 e); 1288 return null; 1289 } 1290 } 1291 1292 private static JournaledFile makeJournaledFile(int userHandle) { 1293 final String base = userHandle == 0 1294 ? "/data/system/" + DEVICE_POLICIES_XML 1295 : new File(Environment.getUserSystemDirectory(userHandle), DEVICE_POLICIES_XML) 1296 .getAbsolutePath(); 1297 return new JournaledFile(new File(base), new File(base + ".tmp")); 1298 } 1299 1300 private void saveSettingsLocked(int userHandle) { 1301 DevicePolicyData policy = getUserData(userHandle); 1302 JournaledFile journal = makeJournaledFile(userHandle); 1303 FileOutputStream stream = null; 1304 try { 1305 stream = new FileOutputStream(journal.chooseForWrite(), false); 1306 XmlSerializer out = new FastXmlSerializer(); 1307 out.setOutput(stream, "utf-8"); 1308 out.startDocument(null, true); 1309 1310 out.startTag(null, "policies"); 1311 if (policy.mRestrictionsProvider != null) { 1312 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1313 policy.mRestrictionsProvider.flattenToString()); 1314 } 1315 if (policy.mUserSetupComplete) { 1316 out.attribute(null, ATTR_SETUP_COMPLETE, 1317 Boolean.toString(true)); 1318 } 1319 1320 final int N = policy.mAdminList.size(); 1321 for (int i=0; i<N; i++) { 1322 ActiveAdmin ap = policy.mAdminList.get(i); 1323 if (ap != null) { 1324 out.startTag(null, "admin"); 1325 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1326 ap.writeToXml(out); 1327 out.endTag(null, "admin"); 1328 } 1329 } 1330 1331 if (policy.mPasswordOwner >= 0) { 1332 out.startTag(null, "password-owner"); 1333 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1334 out.endTag(null, "password-owner"); 1335 } 1336 1337 if (policy.mFailedPasswordAttempts != 0) { 1338 out.startTag(null, "failed-password-attempts"); 1339 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1340 out.endTag(null, "failed-password-attempts"); 1341 } 1342 1343 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1344 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1345 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1346 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1347 out.startTag(null, "active-password"); 1348 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1349 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1350 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1351 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1352 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1353 out.attribute(null, "numeric", Integer 1354 .toString(policy.mActivePasswordNumeric)); 1355 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1356 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1357 out.endTag(null, "active-password"); 1358 } 1359 1360 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1361 String component = policy.mLockTaskPackages.get(i); 1362 out.startTag(null, LOCK_TASK_COMPONENTS_XML); 1363 out.attribute(null, "name", component); 1364 out.endTag(null, LOCK_TASK_COMPONENTS_XML); 1365 } 1366 1367 out.endTag(null, "policies"); 1368 1369 out.endDocument(); 1370 stream.close(); 1371 journal.commit(); 1372 sendChangedNotification(userHandle); 1373 } catch (IOException e) { 1374 try { 1375 if (stream != null) { 1376 stream.close(); 1377 } 1378 } catch (IOException ex) { 1379 // Ignore 1380 } 1381 journal.rollback(); 1382 } 1383 } 1384 1385 private void sendChangedNotification(int userHandle) { 1386 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1387 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1388 long ident = Binder.clearCallingIdentity(); 1389 try { 1390 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1391 } finally { 1392 Binder.restoreCallingIdentity(ident); 1393 } 1394 } 1395 1396 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1397 JournaledFile journal = makeJournaledFile(userHandle); 1398 FileInputStream stream = null; 1399 File file = journal.chooseForRead(); 1400 try { 1401 stream = new FileInputStream(file); 1402 XmlPullParser parser = Xml.newPullParser(); 1403 parser.setInput(stream, null); 1404 1405 int type; 1406 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1407 && type != XmlPullParser.START_TAG) { 1408 } 1409 String tag = parser.getName(); 1410 if (!"policies".equals(tag)) { 1411 throw new XmlPullParserException( 1412 "Settings do not start with policies tag: found " + tag); 1413 } 1414 1415 // Extract the permission provider component name if available 1416 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1417 if (permissionProvider != null) { 1418 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1419 } 1420 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1421 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1422 policy.mUserSetupComplete = true; 1423 } 1424 1425 type = parser.next(); 1426 int outerDepth = parser.getDepth(); 1427 policy.mLockTaskPackages.clear(); 1428 policy.mAdminList.clear(); 1429 policy.mAdminMap.clear(); 1430 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1431 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1432 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1433 continue; 1434 } 1435 tag = parser.getName(); 1436 if ("admin".equals(tag)) { 1437 String name = parser.getAttributeValue(null, "name"); 1438 try { 1439 DeviceAdminInfo dai = findAdmin( 1440 ComponentName.unflattenFromString(name), userHandle); 1441 if (DBG && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1442 != userHandle)) { 1443 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1444 + dai.getActivityInfo().applicationInfo.uid + " for user " 1445 + userHandle); 1446 } 1447 if (dai != null) { 1448 ActiveAdmin ap = new ActiveAdmin(dai); 1449 ap.readFromXml(parser); 1450 policy.mAdminMap.put(ap.info.getComponent(), ap); 1451 } 1452 } catch (RuntimeException e) { 1453 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1454 } 1455 } else if ("failed-password-attempts".equals(tag)) { 1456 policy.mFailedPasswordAttempts = Integer.parseInt( 1457 parser.getAttributeValue(null, "value")); 1458 XmlUtils.skipCurrentTag(parser); 1459 } else if ("password-owner".equals(tag)) { 1460 policy.mPasswordOwner = Integer.parseInt( 1461 parser.getAttributeValue(null, "value")); 1462 XmlUtils.skipCurrentTag(parser); 1463 } else if ("active-password".equals(tag)) { 1464 policy.mActivePasswordQuality = Integer.parseInt( 1465 parser.getAttributeValue(null, "quality")); 1466 policy.mActivePasswordLength = Integer.parseInt( 1467 parser.getAttributeValue(null, "length")); 1468 policy.mActivePasswordUpperCase = Integer.parseInt( 1469 parser.getAttributeValue(null, "uppercase")); 1470 policy.mActivePasswordLowerCase = Integer.parseInt( 1471 parser.getAttributeValue(null, "lowercase")); 1472 policy.mActivePasswordLetters = Integer.parseInt( 1473 parser.getAttributeValue(null, "letters")); 1474 policy.mActivePasswordNumeric = Integer.parseInt( 1475 parser.getAttributeValue(null, "numeric")); 1476 policy.mActivePasswordSymbols = Integer.parseInt( 1477 parser.getAttributeValue(null, "symbols")); 1478 policy.mActivePasswordNonLetter = Integer.parseInt( 1479 parser.getAttributeValue(null, "nonletter")); 1480 XmlUtils.skipCurrentTag(parser); 1481 } else if (LOCK_TASK_COMPONENTS_XML.equals(tag)) { 1482 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 1483 XmlUtils.skipCurrentTag(parser); 1484 } else { 1485 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1486 XmlUtils.skipCurrentTag(parser); 1487 } 1488 } 1489 } catch (NullPointerException e) { 1490 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1491 } catch (NumberFormatException e) { 1492 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1493 } catch (XmlPullParserException e) { 1494 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1495 } catch (FileNotFoundException e) { 1496 // Don't be noisy, this is normal if we haven't defined any policies. 1497 } catch (IOException e) { 1498 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1499 } catch (IndexOutOfBoundsException e) { 1500 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1501 } 1502 try { 1503 if (stream != null) { 1504 stream.close(); 1505 } 1506 } catch (IOException e) { 1507 // Ignore 1508 } 1509 1510 // Generate a list of admins from the admin map 1511 policy.mAdminList.addAll(policy.mAdminMap.values()); 1512 1513 // Validate that what we stored for the password quality matches 1514 // sufficiently what is currently set. Note that this is only 1515 // a sanity check in case the two get out of sync; this should 1516 // never normally happen. 1517 LockPatternUtils utils = new LockPatternUtils(mContext); 1518 if (utils.getActivePasswordQuality() < policy.mActivePasswordQuality) { 1519 Slog.w(LOG_TAG, "Active password quality 0x" 1520 + Integer.toHexString(policy.mActivePasswordQuality) 1521 + " does not match actual quality 0x" 1522 + Integer.toHexString(utils.getActivePasswordQuality())); 1523 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1524 policy.mActivePasswordLength = 0; 1525 policy.mActivePasswordUpperCase = 0; 1526 policy.mActivePasswordLowerCase = 0; 1527 policy.mActivePasswordLetters = 0; 1528 policy.mActivePasswordNumeric = 0; 1529 policy.mActivePasswordSymbols = 0; 1530 policy.mActivePasswordNonLetter = 0; 1531 } 1532 1533 validatePasswordOwnerLocked(policy); 1534 syncDeviceCapabilitiesLocked(policy); 1535 updateMaximumTimeToLockLocked(policy); 1536 } 1537 1538 static void validateQualityConstant(int quality) { 1539 switch (quality) { 1540 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 1541 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 1542 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 1543 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 1544 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 1545 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 1546 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 1547 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 1548 return; 1549 } 1550 throw new IllegalArgumentException("Invalid quality constant: 0x" 1551 + Integer.toHexString(quality)); 1552 } 1553 1554 void validatePasswordOwnerLocked(DevicePolicyData policy) { 1555 if (policy.mPasswordOwner >= 0) { 1556 boolean haveOwner = false; 1557 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1558 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 1559 haveOwner = true; 1560 break; 1561 } 1562 } 1563 if (!haveOwner) { 1564 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 1565 + " no longer active; disabling"); 1566 policy.mPasswordOwner = -1; 1567 } 1568 } 1569 } 1570 1571 /** 1572 * Pushes down policy information to the system for any policies related to general device 1573 * capabilities that need to be enforced by lower level services (e.g. Camera services). 1574 */ 1575 void syncDeviceCapabilitiesLocked(DevicePolicyData policy) { 1576 // Ensure the status of the camera is synced down to the system. Interested native services 1577 // should monitor this value and act accordingly. 1578 boolean systemState = SystemProperties.getBoolean(SYSTEM_PROP_DISABLE_CAMERA, false); 1579 boolean cameraDisabled = getCameraDisabled(null, policy.mUserHandle); 1580 if (cameraDisabled != systemState) { 1581 long token = Binder.clearCallingIdentity(); 1582 try { 1583 String value = cameraDisabled ? "1" : "0"; 1584 if (DBG) Slog.v(LOG_TAG, "Change in camera state [" 1585 + SYSTEM_PROP_DISABLE_CAMERA + "] = " + value); 1586 SystemProperties.set(SYSTEM_PROP_DISABLE_CAMERA, value); 1587 } finally { 1588 Binder.restoreCallingIdentity(token); 1589 } 1590 } 1591 } 1592 1593 public void systemReady() { 1594 if (!mHasFeature) { 1595 return; 1596 } 1597 getUserData(UserHandle.USER_OWNER); 1598 loadDeviceOwner(); 1599 cleanUpOldUsers(); 1600 // Register an observer for watching for user setup complete. 1601 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 1602 // Initialize the user setup state, to handle the upgrade case. 1603 updateUserSetupComplete(); 1604 1605 // Update the screen capture disabled cache in the window manager 1606 List<UserInfo> users = mUserManager.getUsers(true); 1607 final int N = users.size(); 1608 for (int i = 0; i < N; i++) { 1609 int userHandle = users.get(i).id; 1610 updateScreenCaptureDisabledInWindowManager(userHandle, 1611 getScreenCaptureDisabled(null, userHandle)); 1612 } 1613 1614 } 1615 1616 private void cleanUpOldUsers() { 1617 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 1618 // before reboot 1619 Set<Integer> usersWithProfileOwners; 1620 Set<Integer> usersWithData; 1621 synchronized(this) { 1622 usersWithProfileOwners = mDeviceOwner != null 1623 ? mDeviceOwner.getProfileOwnerKeys() : new HashSet<Integer>(); 1624 usersWithData = new HashSet<Integer>(); 1625 for (int i = 0; i < mUserData.size(); i++) { 1626 usersWithData.add(mUserData.keyAt(i)); 1627 } 1628 } 1629 List<UserInfo> allUsers = mUserManager.getUsers(); 1630 1631 Set<Integer> deletedUsers = new HashSet<Integer>(); 1632 deletedUsers.addAll(usersWithProfileOwners); 1633 deletedUsers.addAll(usersWithData); 1634 for (UserInfo userInfo : allUsers) { 1635 deletedUsers.remove(userInfo.id); 1636 } 1637 for (Integer userId : deletedUsers) { 1638 removeUserData(userId); 1639 } 1640 } 1641 1642 private void handlePasswordExpirationNotification(int userHandle) { 1643 synchronized (this) { 1644 final long now = System.currentTimeMillis(); 1645 1646 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1647 for (UserInfo ui : profiles) { 1648 int profileUserHandle = ui.id; 1649 final DevicePolicyData policy = getUserData(profileUserHandle); 1650 final int count = policy.mAdminList.size(); 1651 if (count > 0) { 1652 for (int i = 0; i < count; i++) { 1653 final ActiveAdmin admin = policy.mAdminList.get(i); 1654 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 1655 && admin.passwordExpirationTimeout > 0L 1656 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 1657 && admin.passwordExpirationDate > 0L) { 1658 sendAdminCommandLocked(admin, 1659 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 1660 } 1661 } 1662 } 1663 } 1664 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 1665 } 1666 } 1667 1668 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 1669 @Override 1670 protected Void doInBackground(Intent... params) { 1671 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 1672 1673 if (userHandle == UserHandle.USER_ALL) { 1674 for (UserInfo userInfo : mUserManager.getUsers()) { 1675 manageNotification(userInfo.getUserHandle()); 1676 } 1677 } else { 1678 manageNotification(new UserHandle(userHandle)); 1679 } 1680 return null; 1681 } 1682 1683 private void manageNotification(UserHandle userHandle) { 1684 if (!mUserManager.isUserRunning(userHandle)) { 1685 return; 1686 } 1687 1688 // Call out to KeyChain to check for user-added CAs 1689 boolean hasCert = false; 1690 try { 1691 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 1692 try { 1693 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 1694 hasCert = true; 1695 } 1696 } catch (RemoteException e) { 1697 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 1698 } finally { 1699 kcs.close(); 1700 } 1701 } catch (InterruptedException e) { 1702 Thread.currentThread().interrupt(); 1703 } catch (RuntimeException e) { 1704 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 1705 } 1706 if (!hasCert) { 1707 getNotificationManager().cancelAsUser( 1708 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 1709 return; 1710 } 1711 1712 // Build and show a warning notification 1713 int smallIconId; 1714 String contentText; 1715 final String ownerName = getDeviceOwnerName(); 1716 if (isManagedProfile(userHandle.getIdentifier())) { 1717 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 1718 smallIconId = R.drawable.stat_sys_certificate_info; 1719 } else if (ownerName != null) { 1720 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 1721 smallIconId = R.drawable.stat_sys_certificate_info; 1722 } else { 1723 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 1724 smallIconId = android.R.drawable.stat_sys_warning; 1725 } 1726 1727 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 1728 dialogIntent.setFlags( 1729 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 1730 dialogIntent.setPackage("com.android.settings"); 1731 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 1732 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 1733 1734 final Context userContext; 1735 try { 1736 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 1737 } catch (PackageManager.NameNotFoundException e) { 1738 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 1739 return; 1740 } 1741 final Notification noti = new Notification.Builder(userContext) 1742 .setSmallIcon(smallIconId) 1743 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 1744 .setContentText(contentText) 1745 .setContentIntent(notifyIntent) 1746 .setPriority(Notification.PRIORITY_HIGH) 1747 .setShowWhen(false) 1748 .setColor(mContext.getResources().getColor( 1749 com.android.internal.R.color.system_notification_accent_color)) 1750 .build(); 1751 1752 getNotificationManager().notifyAsUser( 1753 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 1754 } 1755 } 1756 1757 /** 1758 * @param adminReceiver The admin to add 1759 * @param refreshing true = update an active admin, no error 1760 */ 1761 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 1762 if (!mHasFeature) { 1763 return; 1764 } 1765 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 1766 } 1767 1768 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 1769 Bundle onEnableData) { 1770 mContext.enforceCallingOrSelfPermission( 1771 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1772 enforceCrossUserPermission(userHandle); 1773 1774 DevicePolicyData policy = getUserData(userHandle); 1775 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle); 1776 if (info == null) { 1777 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 1778 } 1779 synchronized (this) { 1780 long ident = Binder.clearCallingIdentity(); 1781 try { 1782 if (!refreshing 1783 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 1784 throw new IllegalArgumentException("Admin is already added"); 1785 } 1786 ActiveAdmin newAdmin = new ActiveAdmin(info); 1787 policy.mAdminMap.put(adminReceiver, newAdmin); 1788 int replaceIndex = -1; 1789 final int N = policy.mAdminList.size(); 1790 for (int i=0; i < N; i++) { 1791 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 1792 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 1793 replaceIndex = i; 1794 break; 1795 } 1796 } 1797 if (replaceIndex == -1) { 1798 policy.mAdminList.add(newAdmin); 1799 enableIfNecessary(info.getPackageName(), userHandle); 1800 } else { 1801 policy.mAdminList.set(replaceIndex, newAdmin); 1802 } 1803 saveSettingsLocked(userHandle); 1804 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 1805 onEnableData, null); 1806 } finally { 1807 Binder.restoreCallingIdentity(ident); 1808 } 1809 } 1810 } 1811 1812 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 1813 if (!mHasFeature) { 1814 return false; 1815 } 1816 enforceCrossUserPermission(userHandle); 1817 synchronized (this) { 1818 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 1819 } 1820 } 1821 1822 @Override 1823 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 1824 if (!mHasFeature) { 1825 return false; 1826 } 1827 enforceCrossUserPermission(userHandle); 1828 synchronized (this) { 1829 DevicePolicyData policyData = getUserData(userHandle); 1830 return policyData.mRemovingAdmins.contains(adminReceiver); 1831 } 1832 } 1833 1834 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 1835 if (!mHasFeature) { 1836 return false; 1837 } 1838 enforceCrossUserPermission(userHandle); 1839 synchronized (this) { 1840 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1841 if (administrator == null) { 1842 throw new SecurityException("No active admin " + adminReceiver); 1843 } 1844 return administrator.info.usesPolicy(policyId); 1845 } 1846 } 1847 1848 @SuppressWarnings("unchecked") 1849 public List<ComponentName> getActiveAdmins(int userHandle) { 1850 if (!mHasFeature) { 1851 return Collections.EMPTY_LIST; 1852 } 1853 1854 enforceCrossUserPermission(userHandle); 1855 synchronized (this) { 1856 DevicePolicyData policy = getUserData(userHandle); 1857 final int N = policy.mAdminList.size(); 1858 if (N <= 0) { 1859 return null; 1860 } 1861 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 1862 for (int i=0; i<N; i++) { 1863 res.add(policy.mAdminList.get(i).info.getComponent()); 1864 } 1865 return res; 1866 } 1867 } 1868 1869 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 1870 if (!mHasFeature) { 1871 return false; 1872 } 1873 enforceCrossUserPermission(userHandle); 1874 synchronized (this) { 1875 DevicePolicyData policy = getUserData(userHandle); 1876 final int N = policy.mAdminList.size(); 1877 for (int i=0; i<N; i++) { 1878 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 1879 return true; 1880 } 1881 } 1882 return false; 1883 } 1884 } 1885 1886 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 1887 if (!mHasFeature) { 1888 return; 1889 } 1890 enforceCrossUserPermission(userHandle); 1891 synchronized (this) { 1892 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1893 if (admin == null) { 1894 return; 1895 } 1896 if (admin.getUid() != Binder.getCallingUid()) { 1897 // If trying to remove device owner, refuse when the caller is not the owner. 1898 if (isDeviceOwner(adminReceiver.getPackageName())) { 1899 return; 1900 } 1901 mContext.enforceCallingOrSelfPermission( 1902 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1903 } 1904 long ident = Binder.clearCallingIdentity(); 1905 try { 1906 removeActiveAdminLocked(adminReceiver, userHandle); 1907 } finally { 1908 Binder.restoreCallingIdentity(ident); 1909 } 1910 } 1911 } 1912 1913 public void setPasswordQuality(ComponentName who, int quality, int userHandle) { 1914 if (!mHasFeature) { 1915 return; 1916 } 1917 validateQualityConstant(quality); 1918 enforceCrossUserPermission(userHandle); 1919 1920 synchronized (this) { 1921 if (who == null) { 1922 throw new NullPointerException("ComponentName is null"); 1923 } 1924 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1925 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1926 if (ap.passwordQuality != quality) { 1927 ap.passwordQuality = quality; 1928 saveSettingsLocked(userHandle); 1929 } 1930 } 1931 } 1932 1933 public int getPasswordQuality(ComponentName who, int userHandle) { 1934 if (!mHasFeature) { 1935 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1936 } 1937 enforceCrossUserPermission(userHandle); 1938 synchronized (this) { 1939 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1940 1941 if (who != null) { 1942 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1943 return admin != null ? admin.passwordQuality : mode; 1944 } 1945 1946 // Return strictest policy for this user and profiles that are visible from this user. 1947 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1948 for (UserInfo userInfo : profiles) { 1949 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 1950 final int N = policy.mAdminList.size(); 1951 for (int i=0; i<N; i++) { 1952 ActiveAdmin admin = policy.mAdminList.get(i); 1953 if (mode < admin.passwordQuality) { 1954 mode = admin.passwordQuality; 1955 } 1956 } 1957 } 1958 return mode; 1959 } 1960 } 1961 1962 public void setPasswordMinimumLength(ComponentName who, int length, int userHandle) { 1963 if (!mHasFeature) { 1964 return; 1965 } 1966 enforceCrossUserPermission(userHandle); 1967 synchronized (this) { 1968 if (who == null) { 1969 throw new NullPointerException("ComponentName is null"); 1970 } 1971 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1972 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1973 if (ap.minimumPasswordLength != length) { 1974 ap.minimumPasswordLength = length; 1975 saveSettingsLocked(userHandle); 1976 } 1977 } 1978 } 1979 1980 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 1981 if (!mHasFeature) { 1982 return 0; 1983 } 1984 enforceCrossUserPermission(userHandle); 1985 synchronized (this) { 1986 int length = 0; 1987 1988 if (who != null) { 1989 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1990 return admin != null ? admin.minimumPasswordLength : length; 1991 } 1992 1993 // Return strictest policy for this user and profiles that are visible from this user. 1994 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1995 for (UserInfo userInfo : profiles) { 1996 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 1997 final int N = policy.mAdminList.size(); 1998 for (int i=0; i<N; i++) { 1999 ActiveAdmin admin = policy.mAdminList.get(i); 2000 if (length < admin.minimumPasswordLength) { 2001 length = admin.minimumPasswordLength; 2002 } 2003 } 2004 } 2005 return length; 2006 } 2007 } 2008 2009 public void setPasswordHistoryLength(ComponentName who, int length, int userHandle) { 2010 if (!mHasFeature) { 2011 return; 2012 } 2013 enforceCrossUserPermission(userHandle); 2014 synchronized (this) { 2015 if (who == null) { 2016 throw new NullPointerException("ComponentName is null"); 2017 } 2018 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2019 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2020 if (ap.passwordHistoryLength != length) { 2021 ap.passwordHistoryLength = length; 2022 saveSettingsLocked(userHandle); 2023 } 2024 } 2025 } 2026 2027 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 2028 if (!mHasFeature) { 2029 return 0; 2030 } 2031 enforceCrossUserPermission(userHandle); 2032 synchronized (this) { 2033 int length = 0; 2034 2035 if (who != null) { 2036 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2037 return admin != null ? admin.passwordHistoryLength : length; 2038 } 2039 2040 // Return strictest policy for this user and profiles that are visible from this user. 2041 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2042 for (UserInfo userInfo : profiles) { 2043 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2044 final int N = policy.mAdminList.size(); 2045 for (int i = 0; i < N; i++) { 2046 ActiveAdmin admin = policy.mAdminList.get(i); 2047 if (length < admin.passwordHistoryLength) { 2048 length = admin.passwordHistoryLength; 2049 } 2050 } 2051 } 2052 return length; 2053 } 2054 } 2055 2056 public void setPasswordExpirationTimeout(ComponentName who, long timeout, int userHandle) { 2057 if (!mHasFeature) { 2058 return; 2059 } 2060 enforceCrossUserPermission(userHandle); 2061 synchronized (this) { 2062 if (who == null) { 2063 throw new NullPointerException("ComponentName is null"); 2064 } 2065 if (timeout < 0) { 2066 throw new IllegalArgumentException("Timeout must be >= 0 ms"); 2067 } 2068 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2069 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2070 // Calling this API automatically bumps the expiration date 2071 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2072 ap.passwordExpirationDate = expiration; 2073 ap.passwordExpirationTimeout = timeout; 2074 if (timeout > 0L) { 2075 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2076 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2077 .format(new Date(expiration))); 2078 } 2079 saveSettingsLocked(userHandle); 2080 // in case this is the first one 2081 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2082 } 2083 } 2084 2085 /** 2086 * Return a single admin's expiration cycle time, or the min of all cycle times. 2087 * Returns 0 if not configured. 2088 */ 2089 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2090 if (!mHasFeature) { 2091 return 0L; 2092 } 2093 enforceCrossUserPermission(userHandle); 2094 synchronized (this) { 2095 long timeout = 0L; 2096 2097 if (who != null) { 2098 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2099 return admin != null ? admin.passwordExpirationTimeout : timeout; 2100 } 2101 2102 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2103 for (UserInfo userInfo : profiles) { 2104 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2105 final int N = policy.mAdminList.size(); 2106 for (int i = 0; i < N; i++) { 2107 ActiveAdmin admin = policy.mAdminList.get(i); 2108 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2109 && timeout > admin.passwordExpirationTimeout)) { 2110 timeout = admin.passwordExpirationTimeout; 2111 } 2112 } 2113 } 2114 return timeout; 2115 } 2116 } 2117 2118 @Override 2119 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2120 final int userId = UserHandle.getCallingUserId(); 2121 List<String> changedProviders = null; 2122 2123 synchronized (this) { 2124 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2125 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2126 if (activeAdmin.crossProfileWidgetProviders == null) { 2127 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2128 } 2129 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2130 if (!providers.contains(packageName)) { 2131 providers.add(packageName); 2132 changedProviders = new ArrayList<>(providers); 2133 saveSettingsLocked(userId); 2134 } 2135 } 2136 2137 if (changedProviders != null) { 2138 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2139 return true; 2140 } 2141 2142 return false; 2143 } 2144 2145 @Override 2146 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2147 final int userId = UserHandle.getCallingUserId(); 2148 List<String> changedProviders = null; 2149 2150 synchronized (this) { 2151 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2152 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2153 if (activeAdmin.crossProfileWidgetProviders == null) { 2154 return false; 2155 } 2156 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2157 if (providers.remove(packageName)) { 2158 changedProviders = new ArrayList<>(providers); 2159 saveSettingsLocked(userId); 2160 } 2161 } 2162 2163 if (changedProviders != null) { 2164 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2165 return true; 2166 } 2167 2168 return false; 2169 } 2170 2171 @Override 2172 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2173 synchronized (this) { 2174 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2175 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2176 if (activeAdmin.crossProfileWidgetProviders == null 2177 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2178 return null; 2179 } 2180 if (Binder.getCallingUid() == Process.myUid()) { 2181 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2182 } else { 2183 return activeAdmin.crossProfileWidgetProviders; 2184 } 2185 } 2186 } 2187 2188 /** 2189 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2190 * Returns 0 if not configured. 2191 */ 2192 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2193 long timeout = 0L; 2194 2195 if (who != null) { 2196 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2197 return admin != null ? admin.passwordExpirationDate : timeout; 2198 } 2199 2200 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2201 for (UserInfo userInfo : profiles) { 2202 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2203 final int N = policy.mAdminList.size(); 2204 for (int i = 0; i < N; i++) { 2205 ActiveAdmin admin = policy.mAdminList.get(i); 2206 if (timeout == 0L || (admin.passwordExpirationDate != 0 2207 && timeout > admin.passwordExpirationDate)) { 2208 timeout = admin.passwordExpirationDate; 2209 } 2210 } 2211 } 2212 return timeout; 2213 } 2214 2215 public long getPasswordExpiration(ComponentName who, int userHandle) { 2216 if (!mHasFeature) { 2217 return 0L; 2218 } 2219 enforceCrossUserPermission(userHandle); 2220 synchronized (this) { 2221 return getPasswordExpirationLocked(who, userHandle); 2222 } 2223 } 2224 2225 public void setPasswordMinimumUpperCase(ComponentName who, int length, int userHandle) { 2226 if (!mHasFeature) { 2227 return; 2228 } 2229 enforceCrossUserPermission(userHandle); 2230 synchronized (this) { 2231 if (who == null) { 2232 throw new NullPointerException("ComponentName is null"); 2233 } 2234 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2235 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2236 if (ap.minimumPasswordUpperCase != length) { 2237 ap.minimumPasswordUpperCase = length; 2238 saveSettingsLocked(userHandle); 2239 } 2240 } 2241 } 2242 2243 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2244 if (!mHasFeature) { 2245 return 0; 2246 } 2247 enforceCrossUserPermission(userHandle); 2248 synchronized (this) { 2249 int length = 0; 2250 2251 if (who != null) { 2252 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2253 return admin != null ? admin.minimumPasswordUpperCase : length; 2254 } 2255 2256 // Return strictest policy for this user and profiles that are visible from this user. 2257 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2258 for (UserInfo userInfo : profiles) { 2259 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2260 final int N = policy.mAdminList.size(); 2261 for (int i=0; i<N; i++) { 2262 ActiveAdmin admin = policy.mAdminList.get(i); 2263 if (length < admin.minimumPasswordUpperCase) { 2264 length = admin.minimumPasswordUpperCase; 2265 } 2266 } 2267 } 2268 return length; 2269 } 2270 } 2271 2272 public void setPasswordMinimumLowerCase(ComponentName who, int length, int userHandle) { 2273 enforceCrossUserPermission(userHandle); 2274 synchronized (this) { 2275 if (who == null) { 2276 throw new NullPointerException("ComponentName is null"); 2277 } 2278 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2279 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2280 if (ap.minimumPasswordLowerCase != length) { 2281 ap.minimumPasswordLowerCase = length; 2282 saveSettingsLocked(userHandle); 2283 } 2284 } 2285 } 2286 2287 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2288 if (!mHasFeature) { 2289 return 0; 2290 } 2291 enforceCrossUserPermission(userHandle); 2292 synchronized (this) { 2293 int length = 0; 2294 2295 if (who != null) { 2296 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2297 return admin != null ? admin.minimumPasswordLowerCase : length; 2298 } 2299 2300 // Return strictest policy for this user and profiles that are visible from this user. 2301 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2302 for (UserInfo userInfo : profiles) { 2303 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2304 final int N = policy.mAdminList.size(); 2305 for (int i=0; i<N; i++) { 2306 ActiveAdmin admin = policy.mAdminList.get(i); 2307 if (length < admin.minimumPasswordLowerCase) { 2308 length = admin.minimumPasswordLowerCase; 2309 } 2310 } 2311 } 2312 return length; 2313 } 2314 } 2315 2316 public void setPasswordMinimumLetters(ComponentName who, int length, int userHandle) { 2317 if (!mHasFeature) { 2318 return; 2319 } 2320 enforceCrossUserPermission(userHandle); 2321 synchronized (this) { 2322 if (who == null) { 2323 throw new NullPointerException("ComponentName is null"); 2324 } 2325 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2326 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2327 if (ap.minimumPasswordLetters != length) { 2328 ap.minimumPasswordLetters = length; 2329 saveSettingsLocked(userHandle); 2330 } 2331 } 2332 } 2333 2334 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2335 if (!mHasFeature) { 2336 return 0; 2337 } 2338 enforceCrossUserPermission(userHandle); 2339 synchronized (this) { 2340 int length = 0; 2341 2342 if (who != null) { 2343 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2344 return admin != null ? admin.minimumPasswordLetters : length; 2345 } 2346 2347 // Return strictest policy for this user and profiles that are visible from this user. 2348 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2349 for (UserInfo userInfo : profiles) { 2350 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2351 final int N = policy.mAdminList.size(); 2352 for (int i=0; i<N; i++) { 2353 ActiveAdmin admin = policy.mAdminList.get(i); 2354 if (length < admin.minimumPasswordLetters) { 2355 length = admin.minimumPasswordLetters; 2356 } 2357 } 2358 } 2359 return length; 2360 } 2361 } 2362 2363 public void setPasswordMinimumNumeric(ComponentName who, int length, int userHandle) { 2364 if (!mHasFeature) { 2365 return; 2366 } 2367 enforceCrossUserPermission(userHandle); 2368 synchronized (this) { 2369 if (who == null) { 2370 throw new NullPointerException("ComponentName is null"); 2371 } 2372 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2373 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2374 if (ap.minimumPasswordNumeric != length) { 2375 ap.minimumPasswordNumeric = length; 2376 saveSettingsLocked(userHandle); 2377 } 2378 } 2379 } 2380 2381 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2382 if (!mHasFeature) { 2383 return 0; 2384 } 2385 enforceCrossUserPermission(userHandle); 2386 synchronized (this) { 2387 int length = 0; 2388 2389 if (who != null) { 2390 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2391 return admin != null ? admin.minimumPasswordNumeric : length; 2392 } 2393 2394 // Return strictest policy for this user and profiles that are visible from this user. 2395 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2396 for (UserInfo userInfo : profiles) { 2397 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2398 final int N = policy.mAdminList.size(); 2399 for (int i = 0; i < N; i++) { 2400 ActiveAdmin admin = policy.mAdminList.get(i); 2401 if (length < admin.minimumPasswordNumeric) { 2402 length = admin.minimumPasswordNumeric; 2403 } 2404 } 2405 } 2406 return length; 2407 } 2408 } 2409 2410 public void setPasswordMinimumSymbols(ComponentName who, int length, int userHandle) { 2411 if (!mHasFeature) { 2412 return; 2413 } 2414 enforceCrossUserPermission(userHandle); 2415 synchronized (this) { 2416 if (who == null) { 2417 throw new NullPointerException("ComponentName is null"); 2418 } 2419 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2420 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2421 if (ap.minimumPasswordSymbols != length) { 2422 ap.minimumPasswordSymbols = length; 2423 saveSettingsLocked(userHandle); 2424 } 2425 } 2426 } 2427 2428 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 2429 if (!mHasFeature) { 2430 return 0; 2431 } 2432 enforceCrossUserPermission(userHandle); 2433 synchronized (this) { 2434 int length = 0; 2435 2436 if (who != null) { 2437 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2438 return admin != null ? admin.minimumPasswordSymbols : length; 2439 } 2440 2441 // Return strictest policy for this user and profiles that are visible from this user. 2442 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2443 for (UserInfo userInfo : profiles) { 2444 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2445 final int N = policy.mAdminList.size(); 2446 for (int i=0; i<N; i++) { 2447 ActiveAdmin admin = policy.mAdminList.get(i); 2448 if (length < admin.minimumPasswordSymbols) { 2449 length = admin.minimumPasswordSymbols; 2450 } 2451 } 2452 } 2453 return length; 2454 } 2455 } 2456 2457 public void setPasswordMinimumNonLetter(ComponentName who, int length, int userHandle) { 2458 if (!mHasFeature) { 2459 return; 2460 } 2461 enforceCrossUserPermission(userHandle); 2462 synchronized (this) { 2463 if (who == null) { 2464 throw new NullPointerException("ComponentName is null"); 2465 } 2466 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2467 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2468 if (ap.minimumPasswordNonLetter != length) { 2469 ap.minimumPasswordNonLetter = length; 2470 saveSettingsLocked(userHandle); 2471 } 2472 } 2473 } 2474 2475 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 2476 if (!mHasFeature) { 2477 return 0; 2478 } 2479 enforceCrossUserPermission(userHandle); 2480 synchronized (this) { 2481 int length = 0; 2482 2483 if (who != null) { 2484 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2485 return admin != null ? admin.minimumPasswordNonLetter : length; 2486 } 2487 2488 // Return strictest policy for this user and profiles that are visible from this user. 2489 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2490 for (UserInfo userInfo : profiles) { 2491 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2492 final int N = policy.mAdminList.size(); 2493 for (int i=0; i<N; i++) { 2494 ActiveAdmin admin = policy.mAdminList.get(i); 2495 if (length < admin.minimumPasswordNonLetter) { 2496 length = admin.minimumPasswordNonLetter; 2497 } 2498 } 2499 } 2500 return length; 2501 } 2502 } 2503 2504 public boolean isActivePasswordSufficient(int userHandle) { 2505 if (!mHasFeature) { 2506 return true; 2507 } 2508 enforceCrossUserPermission(userHandle); 2509 2510 synchronized (this) { 2511 2512 // The active password is stored in the user that runs the launcher 2513 // If the user this is called from is part of a profile group, that is the parent 2514 // of the group. 2515 UserInfo parent = getProfileParent(userHandle); 2516 int id = (parent == null) ? userHandle : parent.id; 2517 DevicePolicyData policy = getUserDataUnchecked(id); 2518 2519 // This API can only be called by an active device admin, 2520 // so try to retrieve it to check that the caller is one. 2521 getActiveAdminForCallerLocked(null, 2522 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2523 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 2524 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 2525 return false; 2526 } 2527 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2528 return true; 2529 } 2530 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 2531 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 2532 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 2533 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 2534 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 2535 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 2536 } 2537 } 2538 2539 public int getCurrentFailedPasswordAttempts(int userHandle) { 2540 synchronized (this) { 2541 // This API can only be called by an active device admin, 2542 // so try to retrieve it to check that the caller is one. 2543 getActiveAdminForCallerLocked(null, 2544 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2545 2546 // The active password is stored in the parent. 2547 UserInfo parent = getProfileParent(userHandle); 2548 int id = (parent == null) ? userHandle : parent.id; 2549 DevicePolicyData policy = getUserDataUnchecked(id); 2550 2551 return policy.mFailedPasswordAttempts; 2552 } 2553 } 2554 2555 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, int userHandle) { 2556 if (!mHasFeature) { 2557 return; 2558 } 2559 enforceCrossUserPermission(userHandle); 2560 synchronized (this) { 2561 if (who == null) { 2562 throw new NullPointerException("ComponentName is null"); 2563 } 2564 // This API can only be called by an active device admin, 2565 // so try to retrieve it to check that the caller is one. 2566 getActiveAdminForCallerLocked(who, 2567 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 2568 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2569 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2570 if (ap.maximumFailedPasswordsForWipe != num) { 2571 ap.maximumFailedPasswordsForWipe = num; 2572 saveSettingsLocked(userHandle); 2573 } 2574 } 2575 } 2576 2577 @Override 2578 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 2579 if (!mHasFeature) { 2580 return 0; 2581 } 2582 enforceCrossUserPermission(userHandle); 2583 synchronized (this) { 2584 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 2585 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 2586 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 2587 } 2588 } 2589 2590 @Override 2591 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle) { 2592 if (!mHasFeature) { 2593 return UserHandle.USER_NULL; 2594 } 2595 enforceCrossUserPermission(userHandle); 2596 synchronized (this) { 2597 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 2598 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 2599 } 2600 } 2601 2602 /** 2603 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 2604 * profiles that are visible from this user. If the policy for the primary and any other profile 2605 * are equal, it returns the admin for the primary profile. 2606 * Returns {@code null} if none of them have that policy set. 2607 */ 2608 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 2609 int count = 0; 2610 ActiveAdmin strictestAdmin = null; 2611 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 2612 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2613 for (ActiveAdmin admin : policy.mAdminList) { 2614 if (admin.maximumFailedPasswordsForWipe == 2615 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 2616 continue; // No max number of failed passwords policy set for this profile. 2617 } 2618 2619 // We always favor the primary profile if several profiles have the same value set. 2620 if (count == 0 || 2621 count > admin.maximumFailedPasswordsForWipe || 2622 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 2623 count = admin.maximumFailedPasswordsForWipe; 2624 strictestAdmin = admin; 2625 } 2626 } 2627 } 2628 return strictestAdmin; 2629 } 2630 2631 public boolean resetPassword(String passwordOrNull, int flags, int userHandle) { 2632 if (!mHasFeature) { 2633 return false; 2634 } 2635 enforceCrossUserPermission(userHandle); 2636 enforceNotManagedProfile(userHandle, "reset the password"); 2637 2638 String password = passwordOrNull != null ? passwordOrNull : ""; 2639 2640 int quality; 2641 synchronized (this) { 2642 // This api can only be called by an active device admin, 2643 // so try to retrieve it to check that the caller is one. 2644 getActiveAdminForCallerLocked(null, 2645 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 2646 quality = getPasswordQuality(null, userHandle); 2647 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 2648 int realQuality = LockPatternUtils.computePasswordQuality(password); 2649 if (realQuality < quality 2650 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2651 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 2652 + Integer.toHexString(realQuality) 2653 + " does not meet required quality 0x" 2654 + Integer.toHexString(quality)); 2655 return false; 2656 } 2657 quality = Math.max(realQuality, quality); 2658 } 2659 int length = getPasswordMinimumLength(null, userHandle); 2660 if (password.length() < length) { 2661 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 2662 + " does not meet required length " + length); 2663 return false; 2664 } 2665 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2666 int letters = 0; 2667 int uppercase = 0; 2668 int lowercase = 0; 2669 int numbers = 0; 2670 int symbols = 0; 2671 int nonletter = 0; 2672 for (int i = 0; i < password.length(); i++) { 2673 char c = password.charAt(i); 2674 if (c >= 'A' && c <= 'Z') { 2675 letters++; 2676 uppercase++; 2677 } else if (c >= 'a' && c <= 'z') { 2678 letters++; 2679 lowercase++; 2680 } else if (c >= '0' && c <= '9') { 2681 numbers++; 2682 nonletter++; 2683 } else { 2684 symbols++; 2685 nonletter++; 2686 } 2687 } 2688 int neededLetters = getPasswordMinimumLetters(null, userHandle); 2689 if(letters < neededLetters) { 2690 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 2691 + " does not meet required number of letters " + neededLetters); 2692 return false; 2693 } 2694 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 2695 if (numbers < neededNumbers) { 2696 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 2697 + " does not meet required number of numerical digits " 2698 + neededNumbers); 2699 return false; 2700 } 2701 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 2702 if (lowercase < neededLowerCase) { 2703 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 2704 + " does not meet required number of lowercase letters " 2705 + neededLowerCase); 2706 return false; 2707 } 2708 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 2709 if (uppercase < neededUpperCase) { 2710 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 2711 + " does not meet required number of uppercase letters " 2712 + neededUpperCase); 2713 return false; 2714 } 2715 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 2716 if (symbols < neededSymbols) { 2717 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 2718 + " does not meet required number of special symbols " + neededSymbols); 2719 return false; 2720 } 2721 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 2722 if (nonletter < neededNonLetter) { 2723 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 2724 + " does not meet required number of non-letter characters " 2725 + neededNonLetter); 2726 return false; 2727 } 2728 } 2729 } 2730 2731 int callingUid = Binder.getCallingUid(); 2732 DevicePolicyData policy = getUserData(userHandle); 2733 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 2734 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 2735 return false; 2736 } 2737 2738 // Don't do this with the lock held, because it is going to call 2739 // back in to the service. 2740 long ident = Binder.clearCallingIdentity(); 2741 try { 2742 LockPatternUtils utils = new LockPatternUtils(mContext); 2743 if (!TextUtils.isEmpty(password)) { 2744 utils.saveLockPassword(password, quality, false, userHandle); 2745 } else { 2746 utils.clearLock(false, userHandle); 2747 } 2748 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 2749 if (requireEntry) { 2750 utils.requireCredentialEntry(UserHandle.USER_ALL); 2751 } 2752 synchronized (this) { 2753 int newOwner = requireEntry ? callingUid : -1; 2754 if (policy.mPasswordOwner != newOwner) { 2755 policy.mPasswordOwner = newOwner; 2756 saveSettingsLocked(userHandle); 2757 } 2758 } 2759 } finally { 2760 Binder.restoreCallingIdentity(ident); 2761 } 2762 2763 return true; 2764 } 2765 2766 public void setMaximumTimeToLock(ComponentName who, long timeMs, int userHandle) { 2767 if (!mHasFeature) { 2768 return; 2769 } 2770 enforceCrossUserPermission(userHandle); 2771 synchronized (this) { 2772 if (who == null) { 2773 throw new NullPointerException("ComponentName is null"); 2774 } 2775 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2776 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2777 if (ap.maximumTimeToUnlock != timeMs) { 2778 ap.maximumTimeToUnlock = timeMs; 2779 saveSettingsLocked(userHandle); 2780 updateMaximumTimeToLockLocked(getUserData(userHandle)); 2781 } 2782 } 2783 } 2784 2785 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 2786 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 2787 if (policy.mLastMaximumTimeToLock == timeMs) { 2788 return; 2789 } 2790 2791 long ident = Binder.clearCallingIdentity(); 2792 try { 2793 if (timeMs <= 0) { 2794 timeMs = Integer.MAX_VALUE; 2795 } else { 2796 // Make sure KEEP_SCREEN_ON is disabled, since that 2797 // would allow bypassing of the maximum time to lock. 2798 Settings.Global.putInt(mContext.getContentResolver(), 2799 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 2800 } 2801 2802 policy.mLastMaximumTimeToLock = timeMs; 2803 mPowerManagerInternal.setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 2804 } finally { 2805 Binder.restoreCallingIdentity(ident); 2806 } 2807 } 2808 2809 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 2810 if (!mHasFeature) { 2811 return 0; 2812 } 2813 enforceCrossUserPermission(userHandle); 2814 synchronized (this) { 2815 long time = 0; 2816 2817 if (who != null) { 2818 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2819 return admin != null ? admin.maximumTimeToUnlock : time; 2820 } 2821 2822 // Return strictest policy for this user and profiles that are visible from this user. 2823 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2824 for (UserInfo userInfo : profiles) { 2825 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2826 final int N = policy.mAdminList.size(); 2827 for (int i=0; i<N; i++) { 2828 ActiveAdmin admin = policy.mAdminList.get(i); 2829 if (time == 0) { 2830 time = admin.maximumTimeToUnlock; 2831 } else if (admin.maximumTimeToUnlock != 0 2832 && time > admin.maximumTimeToUnlock) { 2833 time = admin.maximumTimeToUnlock; 2834 } 2835 } 2836 } 2837 return time; 2838 } 2839 } 2840 2841 public void lockNow() { 2842 if (!mHasFeature) { 2843 return; 2844 } 2845 synchronized (this) { 2846 // This API can only be called by an active device admin, 2847 // so try to retrieve it to check that the caller is one. 2848 getActiveAdminForCallerLocked(null, 2849 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2850 lockNowUnchecked(); 2851 } 2852 } 2853 2854 private void lockNowUnchecked() { 2855 long ident = Binder.clearCallingIdentity(); 2856 try { 2857 // Power off the display 2858 mPowerManager.goToSleep(SystemClock.uptimeMillis(), 2859 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 2860 // Ensure the device is locked 2861 new LockPatternUtils(mContext).requireCredentialEntry(UserHandle.USER_ALL); 2862 getWindowManager().lockNow(null); 2863 } catch (RemoteException e) { 2864 } finally { 2865 Binder.restoreCallingIdentity(ident); 2866 } 2867 } 2868 2869 private boolean isExtStorageEncrypted() { 2870 String state = SystemProperties.get("vold.decrypt"); 2871 return !"".equals(state); 2872 } 2873 2874 @Override 2875 public void enforceCanManageCaCerts(ComponentName who) { 2876 if (who == null) { 2877 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 2878 } else { 2879 synchronized (this) { 2880 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2881 } 2882 } 2883 } 2884 2885 @Override 2886 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 2887 enforceCanManageCaCerts(admin); 2888 2889 byte[] pemCert; 2890 try { 2891 X509Certificate cert = parseCert(certBuffer); 2892 pemCert = Credentials.convertToPem(cert); 2893 } catch (CertificateException ce) { 2894 Log.e(LOG_TAG, "Problem converting cert", ce); 2895 return false; 2896 } catch (IOException ioe) { 2897 Log.e(LOG_TAG, "Problem reading cert", ioe); 2898 return false; 2899 } 2900 2901 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2902 final long id = Binder.clearCallingIdentity(); 2903 try { 2904 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2905 try { 2906 keyChainConnection.getService().installCaCertificate(pemCert); 2907 return true; 2908 } catch (RemoteException e) { 2909 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 2910 } finally { 2911 keyChainConnection.close(); 2912 } 2913 } catch (InterruptedException e1) { 2914 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 2915 Thread.currentThread().interrupt(); 2916 } finally { 2917 Binder.restoreCallingIdentity(id); 2918 } 2919 return false; 2920 } 2921 2922 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 2923 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 2924 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 2925 certBuffer)); 2926 } 2927 2928 @Override 2929 public void uninstallCaCert(ComponentName admin, String alias) { 2930 enforceCanManageCaCerts(admin); 2931 2932 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2933 final long id = Binder.clearCallingIdentity(); 2934 try { 2935 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2936 try { 2937 keyChainConnection.getService().deleteCaCertificate(alias); 2938 } catch (RemoteException e) { 2939 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 2940 } finally { 2941 keyChainConnection.close(); 2942 } 2943 } catch (InterruptedException ie) { 2944 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 2945 Thread.currentThread().interrupt(); 2946 } finally { 2947 Binder.restoreCallingIdentity(id); 2948 } 2949 } 2950 2951 @Override 2952 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 2953 if (who == null) { 2954 throw new NullPointerException("ComponentName is null"); 2955 } 2956 synchronized (this) { 2957 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2958 } 2959 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2960 final long id = Binder.clearCallingIdentity(); 2961 try { 2962 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2963 try { 2964 IKeyChainService keyChain = keyChainConnection.getService(); 2965 return keyChain.installKeyPair(privKey, cert, alias); 2966 } catch (RemoteException e) { 2967 Log.e(LOG_TAG, "Installing certificate", e); 2968 } finally { 2969 keyChainConnection.close(); 2970 } 2971 } catch (InterruptedException e) { 2972 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 2973 Thread.currentThread().interrupt(); 2974 } finally { 2975 Binder.restoreCallingIdentity(id); 2976 } 2977 return false; 2978 } 2979 2980 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 2981 // If the SD card is encrypted and non-removable, we have to force a wipe. 2982 boolean forceExtWipe = !Environment.isExternalStorageRemovable() && isExtStorageEncrypted(); 2983 2984 // Note: we can only do the wipe via ExternalStorageFormatter if the volume is not emulated. 2985 if ((forceExtWipe || wipeExtRequested) && !Environment.isExternalStorageEmulated()) { 2986 Intent intent = new Intent(ExternalStorageFormatter.FORMAT_AND_FACTORY_RESET); 2987 intent.putExtra(ExternalStorageFormatter.EXTRA_ALWAYS_RESET, true); 2988 intent.putExtra(Intent.EXTRA_REASON, reason); 2989 intent.setComponent(ExternalStorageFormatter.COMPONENT_NAME); 2990 mWakeLock.acquire(10000); 2991 mContext.startService(intent); 2992 } else { 2993 try { 2994 RecoverySystem.rebootWipeUserData(mContext, reason); 2995 } catch (IOException | SecurityException e) { 2996 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 2997 } 2998 } 2999 } 3000 3001 @Override 3002 public void wipeData(int flags, final int userHandle) { 3003 if (!mHasFeature) { 3004 return; 3005 } 3006 enforceCrossUserPermission(userHandle); 3007 synchronized (this) { 3008 // This API can only be called by an active device admin, 3009 // so try to retrieve it to check that the caller is one. 3010 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 3011 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3012 3013 final String source; 3014 final ComponentName cname = admin.info.getComponent(); 3015 if (cname != null) { 3016 source = cname.flattenToShortString(); 3017 } else { 3018 source = admin.info.getPackageName(); 3019 } 3020 3021 long ident = Binder.clearCallingIdentity(); 3022 try { 3023 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 3024 if (userHandle != UserHandle.USER_OWNER 3025 || !isDeviceOwner(admin.info.getPackageName())) { 3026 throw new SecurityException( 3027 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 3028 } 3029 PersistentDataBlockManager manager = (PersistentDataBlockManager) 3030 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 3031 manager.wipe(); 3032 } 3033 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 3034 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 3035 "DevicePolicyManager.wipeData() from " + source); 3036 } finally { 3037 Binder.restoreCallingIdentity(ident); 3038 } 3039 } 3040 } 3041 3042 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 3043 if (userHandle == UserHandle.USER_OWNER) { 3044 wipeDataLocked(wipeExtRequested, reason); 3045 } else { 3046 mHandler.post(new Runnable() { 3047 public void run() { 3048 try { 3049 ActivityManagerNative.getDefault().switchUser(UserHandle.USER_OWNER); 3050 if (!mUserManager.removeUser(userHandle)) { 3051 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 3052 } 3053 } catch (RemoteException re) { 3054 // Shouldn't happen 3055 } 3056 } 3057 }); 3058 } 3059 } 3060 3061 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 3062 if (!mHasFeature) { 3063 return; 3064 } 3065 enforceCrossUserPermission(userHandle); 3066 mContext.enforceCallingOrSelfPermission( 3067 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3068 3069 synchronized (this) { 3070 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 3071 if (admin == null) { 3072 try { 3073 result.sendResult(null); 3074 } catch (RemoteException e) { 3075 } 3076 return; 3077 } 3078 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3079 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3080 intent.setComponent(admin.info.getComponent()); 3081 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3082 null, new BroadcastReceiver() { 3083 @Override 3084 public void onReceive(Context context, Intent intent) { 3085 try { 3086 result.sendResult(getResultExtras(false)); 3087 } catch (RemoteException e) { 3088 } 3089 } 3090 }, null, Activity.RESULT_OK, null, null); 3091 } 3092 } 3093 3094 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3095 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3096 if (!mHasFeature) { 3097 return; 3098 } 3099 enforceCrossUserPermission(userHandle); 3100 enforceNotManagedProfile(userHandle, "set the active password"); 3101 3102 mContext.enforceCallingOrSelfPermission( 3103 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3104 DevicePolicyData p = getUserData(userHandle); 3105 3106 validateQualityConstant(quality); 3107 3108 synchronized (this) { 3109 if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length 3110 || p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters 3111 || p.mActivePasswordUpperCase != uppercase 3112 || p.mActivePasswordLowerCase != lowercase 3113 || p.mActivePasswordNumeric != numbers 3114 || p.mActivePasswordSymbols != symbols 3115 || p.mActivePasswordNonLetter != nonletter) { 3116 long ident = Binder.clearCallingIdentity(); 3117 try { 3118 p.mActivePasswordQuality = quality; 3119 p.mActivePasswordLength = length; 3120 p.mActivePasswordLetters = letters; 3121 p.mActivePasswordLowerCase = lowercase; 3122 p.mActivePasswordUpperCase = uppercase; 3123 p.mActivePasswordNumeric = numbers; 3124 p.mActivePasswordSymbols = symbols; 3125 p.mActivePasswordNonLetter = nonletter; 3126 p.mFailedPasswordAttempts = 0; 3127 saveSettingsLocked(userHandle); 3128 updatePasswordExpirationsLocked(userHandle); 3129 setExpirationAlarmCheckLocked(mContext, p); 3130 sendAdminCommandToSelfAndProfilesLocked( 3131 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3132 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3133 } finally { 3134 Binder.restoreCallingIdentity(ident); 3135 } 3136 } 3137 } 3138 } 3139 3140 /** 3141 * Called any time the device password is updated. Resets all password expiration clocks. 3142 */ 3143 private void updatePasswordExpirationsLocked(int userHandle) { 3144 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3145 for (UserInfo userInfo : profiles) { 3146 int profileId = userInfo.id; 3147 DevicePolicyData policy = getUserDataUnchecked(profileId); 3148 final int N = policy.mAdminList.size(); 3149 if (N > 0) { 3150 for (int i=0; i<N; i++) { 3151 ActiveAdmin admin = policy.mAdminList.get(i); 3152 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3153 long timeout = admin.passwordExpirationTimeout; 3154 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3155 admin.passwordExpirationDate = expiration; 3156 } 3157 } 3158 } 3159 saveSettingsLocked(profileId); 3160 } 3161 } 3162 3163 public void reportFailedPasswordAttempt(int userHandle) { 3164 enforceCrossUserPermission(userHandle); 3165 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3166 mContext.enforceCallingOrSelfPermission( 3167 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3168 3169 long ident = Binder.clearCallingIdentity(); 3170 try { 3171 boolean wipeData = false; 3172 int identifier = 0; 3173 synchronized (this) { 3174 DevicePolicyData policy = getUserData(userHandle); 3175 policy.mFailedPasswordAttempts++; 3176 saveSettingsLocked(userHandle); 3177 if (mHasFeature) { 3178 ActiveAdmin strictestAdmin = 3179 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3180 int max = strictestAdmin != null 3181 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3182 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 3183 // Wipe the user/profile associated with the policy that was violated. This 3184 // is not necessarily calling user: if the policy that fired was from a 3185 // managed profile rather than the main user profile, we wipe former only. 3186 wipeData = true; 3187 identifier = strictestAdmin.getUserHandle().getIdentifier(); 3188 } 3189 sendAdminCommandToSelfAndProfilesLocked( 3190 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 3191 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3192 } 3193 } 3194 if (wipeData) { 3195 // Call without holding lock. 3196 wipeDeviceOrUserLocked(false, identifier, 3197 "reportFailedPasswordAttempt()"); 3198 } 3199 } finally { 3200 Binder.restoreCallingIdentity(ident); 3201 } 3202 } 3203 3204 public void reportSuccessfulPasswordAttempt(int userHandle) { 3205 enforceCrossUserPermission(userHandle); 3206 mContext.enforceCallingOrSelfPermission( 3207 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3208 3209 synchronized (this) { 3210 DevicePolicyData policy = getUserData(userHandle); 3211 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 3212 long ident = Binder.clearCallingIdentity(); 3213 try { 3214 policy.mFailedPasswordAttempts = 0; 3215 policy.mPasswordOwner = -1; 3216 saveSettingsLocked(userHandle); 3217 if (mHasFeature) { 3218 sendAdminCommandToSelfAndProfilesLocked( 3219 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 3220 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3221 } 3222 } finally { 3223 Binder.restoreCallingIdentity(ident); 3224 } 3225 } 3226 } 3227 } 3228 3229 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 3230 String exclusionList, int userHandle) { 3231 if (!mHasFeature) { 3232 return null; 3233 } 3234 enforceCrossUserPermission(userHandle); 3235 synchronized(this) { 3236 if (who == null) { 3237 throw new NullPointerException("ComponentName is null"); 3238 } 3239 3240 // Only check if owner has set global proxy. We don't allow other users to set it. 3241 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3242 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3243 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 3244 3245 // Scan through active admins and find if anyone has already 3246 // set the global proxy. 3247 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 3248 for (ComponentName component : compSet) { 3249 ActiveAdmin ap = policy.mAdminMap.get(component); 3250 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 3251 // Another admin already sets the global proxy 3252 // Return it to the caller. 3253 return component; 3254 } 3255 } 3256 3257 // If the user is not the owner, don't set the global proxy. Fail silently. 3258 if (UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 3259 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 3260 + userHandle + " is not permitted."); 3261 return null; 3262 } 3263 if (proxySpec == null) { 3264 admin.specifiesGlobalProxy = false; 3265 admin.globalProxySpec = null; 3266 admin.globalProxyExclusionList = null; 3267 } else { 3268 3269 admin.specifiesGlobalProxy = true; 3270 admin.globalProxySpec = proxySpec; 3271 admin.globalProxyExclusionList = exclusionList; 3272 } 3273 3274 // Reset the global proxy accordingly 3275 // Do this using system permissions, as apps cannot write to secure settings 3276 long origId = Binder.clearCallingIdentity(); 3277 try { 3278 resetGlobalProxyLocked(policy); 3279 } finally { 3280 Binder.restoreCallingIdentity(origId); 3281 } 3282 return null; 3283 } 3284 } 3285 3286 public ComponentName getGlobalProxyAdmin(int userHandle) { 3287 if (!mHasFeature) { 3288 return null; 3289 } 3290 enforceCrossUserPermission(userHandle); 3291 synchronized(this) { 3292 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3293 // Scan through active admins and find if anyone has already 3294 // set the global proxy. 3295 final int N = policy.mAdminList.size(); 3296 for (int i = 0; i < N; i++) { 3297 ActiveAdmin ap = policy.mAdminList.get(i); 3298 if (ap.specifiesGlobalProxy) { 3299 // Device admin sets the global proxy 3300 // Return it to the caller. 3301 return ap.info.getComponent(); 3302 } 3303 } 3304 } 3305 // No device admin sets the global proxy. 3306 return null; 3307 } 3308 3309 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 3310 synchronized (this) { 3311 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3312 } 3313 long token = Binder.clearCallingIdentity(); 3314 try { 3315 ConnectivityManager connectivityManager = (ConnectivityManager) 3316 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 3317 connectivityManager.setGlobalProxy(proxyInfo); 3318 } finally { 3319 Binder.restoreCallingIdentity(token); 3320 } 3321 } 3322 3323 private void resetGlobalProxyLocked(DevicePolicyData policy) { 3324 final int N = policy.mAdminList.size(); 3325 for (int i = 0; i < N; i++) { 3326 ActiveAdmin ap = policy.mAdminList.get(i); 3327 if (ap.specifiesGlobalProxy) { 3328 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 3329 return; 3330 } 3331 } 3332 // No device admins defining global proxies - reset global proxy settings to none 3333 saveGlobalProxyLocked(null, null); 3334 } 3335 3336 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 3337 if (exclusionList == null) { 3338 exclusionList = ""; 3339 } 3340 if (proxySpec == null) { 3341 proxySpec = ""; 3342 } 3343 // Remove white spaces 3344 proxySpec = proxySpec.trim(); 3345 String data[] = proxySpec.split(":"); 3346 int proxyPort = 8080; 3347 if (data.length > 1) { 3348 try { 3349 proxyPort = Integer.parseInt(data[1]); 3350 } catch (NumberFormatException e) {} 3351 } 3352 exclusionList = exclusionList.trim(); 3353 ContentResolver res = mContext.getContentResolver(); 3354 3355 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 3356 if (!proxyProperties.isValid()) { 3357 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3358 return; 3359 } 3360 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 3361 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 3362 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 3363 exclusionList); 3364 } 3365 3366 /** 3367 * Set the storage encryption request for a single admin. Returns the new total request 3368 * status (for all admins). 3369 */ 3370 public int setStorageEncryption(ComponentName who, boolean encrypt, int userHandle) { 3371 if (!mHasFeature) { 3372 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3373 } 3374 enforceCrossUserPermission(userHandle); 3375 synchronized (this) { 3376 // Check for permissions 3377 if (who == null) { 3378 throw new NullPointerException("ComponentName is null"); 3379 } 3380 // Only owner can set storage encryption 3381 if (userHandle != UserHandle.USER_OWNER 3382 || UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 3383 Slog.w(LOG_TAG, "Only owner is allowed to set storage encryption. User " 3384 + UserHandle.getCallingUserId() + " is not permitted."); 3385 return 0; 3386 } 3387 3388 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3389 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 3390 3391 // Quick exit: If the filesystem does not support encryption, we can exit early. 3392 if (!isEncryptionSupported()) { 3393 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3394 } 3395 3396 // (1) Record the value for the admin so it's sticky 3397 if (ap.encryptionRequested != encrypt) { 3398 ap.encryptionRequested = encrypt; 3399 saveSettingsLocked(userHandle); 3400 } 3401 3402 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3403 // (2) Compute "max" for all admins 3404 boolean newRequested = false; 3405 final int N = policy.mAdminList.size(); 3406 for (int i = 0; i < N; i++) { 3407 newRequested |= policy.mAdminList.get(i).encryptionRequested; 3408 } 3409 3410 // Notify OS of new request 3411 setEncryptionRequested(newRequested); 3412 3413 // Return the new global request status 3414 return newRequested 3415 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3416 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3417 } 3418 } 3419 3420 /** 3421 * Get the current storage encryption request status for a given admin, or aggregate of all 3422 * active admins. 3423 */ 3424 public boolean getStorageEncryption(ComponentName who, int userHandle) { 3425 if (!mHasFeature) { 3426 return false; 3427 } 3428 enforceCrossUserPermission(userHandle); 3429 synchronized (this) { 3430 // Check for permissions if a particular caller is specified 3431 if (who != null) { 3432 // When checking for a single caller, status is based on caller's request 3433 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 3434 return ap != null ? ap.encryptionRequested : false; 3435 } 3436 3437 // If no particular caller is specified, return the aggregate set of requests. 3438 // This is short circuited by returning true on the first hit. 3439 DevicePolicyData policy = getUserData(userHandle); 3440 final int N = policy.mAdminList.size(); 3441 for (int i = 0; i < N; i++) { 3442 if (policy.mAdminList.get(i).encryptionRequested) { 3443 return true; 3444 } 3445 } 3446 return false; 3447 } 3448 } 3449 3450 /** 3451 * Get the current encryption status of the device. 3452 */ 3453 public int getStorageEncryptionStatus(int userHandle) { 3454 if (!mHasFeature) { 3455 // Ok to return current status. 3456 } 3457 enforceCrossUserPermission(userHandle); 3458 return getEncryptionStatus(); 3459 } 3460 3461 /** 3462 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 3463 */ 3464 private boolean isEncryptionSupported() { 3465 // Note, this can be implemented as 3466 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3467 // But is provided as a separate internal method if there's a faster way to do a 3468 // simple check for supported-or-not. 3469 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3470 } 3471 3472 /** 3473 * Hook to low-levels: Reporting the current status of encryption. 3474 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED} or 3475 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE} or 3476 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 3477 */ 3478 private int getEncryptionStatus() { 3479 String status = SystemProperties.get("ro.crypto.state", "unsupported"); 3480 if ("encrypted".equalsIgnoreCase(status)) { 3481 final long token = Binder.clearCallingIdentity(); 3482 try { 3483 return LockPatternUtils.isDeviceEncrypted() 3484 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3485 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3486 } finally { 3487 Binder.restoreCallingIdentity(token); 3488 } 3489 } else if ("unencrypted".equalsIgnoreCase(status)) { 3490 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3491 } else { 3492 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3493 } 3494 } 3495 3496 /** 3497 * Hook to low-levels: If needed, record the new admin setting for encryption. 3498 */ 3499 private void setEncryptionRequested(boolean encrypt) { 3500 } 3501 3502 3503 /** 3504 * Set whether the screen capture is disabled for the user managed by the specified admin. 3505 */ 3506 public void setScreenCaptureDisabled(ComponentName who, int userHandle, boolean disabled) { 3507 if (!mHasFeature) { 3508 return; 3509 } 3510 enforceCrossUserPermission(userHandle); 3511 synchronized (this) { 3512 if (who == null) { 3513 throw new NullPointerException("ComponentName is null"); 3514 } 3515 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3516 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3517 if (ap.disableScreenCapture != disabled) { 3518 ap.disableScreenCapture = disabled; 3519 saveSettingsLocked(userHandle); 3520 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 3521 } 3522 } 3523 } 3524 3525 /** 3526 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 3527 * active admin (if given admin is null). 3528 */ 3529 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 3530 if (!mHasFeature) { 3531 return false; 3532 } 3533 synchronized (this) { 3534 if (who != null) { 3535 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3536 return (admin != null) ? admin.disableScreenCapture : false; 3537 } 3538 3539 DevicePolicyData policy = getUserData(userHandle); 3540 final int N = policy.mAdminList.size(); 3541 for (int i = 0; i < N; i++) { 3542 ActiveAdmin admin = policy.mAdminList.get(i); 3543 if (admin.disableScreenCapture) { 3544 return true; 3545 } 3546 } 3547 return false; 3548 } 3549 } 3550 3551 private void updateScreenCaptureDisabledInWindowManager(int userHandle, boolean disabled) { 3552 long ident = Binder.clearCallingIdentity(); 3553 try { 3554 getWindowManager().setScreenCaptureDisabled(userHandle, disabled); 3555 } catch (RemoteException e) { 3556 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 3557 } finally { 3558 Binder.restoreCallingIdentity(ident); 3559 } 3560 } 3561 3562 /** 3563 * Set whether auto time is required by the specified admin (must be device owner). 3564 */ 3565 public void setAutoTimeRequired(ComponentName who, int userHandle, boolean required) { 3566 if (!mHasFeature) { 3567 return; 3568 } 3569 enforceCrossUserPermission(userHandle); 3570 synchronized (this) { 3571 if (who == null) { 3572 throw new NullPointerException("ComponentName is null"); 3573 } 3574 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3575 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3576 if (admin.requireAutoTime != required) { 3577 admin.requireAutoTime = required; 3578 saveSettingsLocked(userHandle); 3579 } 3580 } 3581 3582 // Turn AUTO_TIME on in settings if it is required 3583 if (required) { 3584 long ident = Binder.clearCallingIdentity(); 3585 try { 3586 Settings.Global.putInt(mContext.getContentResolver(), 3587 Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 3588 } finally { 3589 Binder.restoreCallingIdentity(ident); 3590 } 3591 } 3592 } 3593 3594 /** 3595 * Returns whether or not auto time is required by the device owner. 3596 */ 3597 public boolean getAutoTimeRequired() { 3598 if (!mHasFeature) { 3599 return false; 3600 } 3601 synchronized (this) { 3602 ActiveAdmin deviceOwner = getDeviceOwnerAdmin(); 3603 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 3604 } 3605 } 3606 3607 /** 3608 * The system property used to share the state of the camera. The native camera service 3609 * is expected to read this property and act accordingly. 3610 */ 3611 public static final String SYSTEM_PROP_DISABLE_CAMERA = "sys.secpolicy.camera.disabled"; 3612 3613 /** 3614 * Disables all device cameras according to the specified admin. 3615 */ 3616 public void setCameraDisabled(ComponentName who, boolean disabled, int userHandle) { 3617 if (!mHasFeature) { 3618 return; 3619 } 3620 enforceCrossUserPermission(userHandle); 3621 synchronized (this) { 3622 if (who == null) { 3623 throw new NullPointerException("ComponentName is null"); 3624 } 3625 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3626 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 3627 if (ap.disableCamera != disabled) { 3628 ap.disableCamera = disabled; 3629 saveSettingsLocked(userHandle); 3630 } 3631 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 3632 } 3633 } 3634 3635 /** 3636 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 3637 * active admins. 3638 */ 3639 public boolean getCameraDisabled(ComponentName who, int userHandle) { 3640 if (!mHasFeature) { 3641 return false; 3642 } 3643 synchronized (this) { 3644 if (who != null) { 3645 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3646 return (admin != null) ? admin.disableCamera : false; 3647 } 3648 3649 DevicePolicyData policy = getUserData(userHandle); 3650 // Determine whether or not the device camera is disabled for any active admins. 3651 final int N = policy.mAdminList.size(); 3652 for (int i = 0; i < N; i++) { 3653 ActiveAdmin admin = policy.mAdminList.get(i); 3654 if (admin.disableCamera) { 3655 return true; 3656 } 3657 } 3658 return false; 3659 } 3660 } 3661 3662 /** 3663 * Selectively disable keyguard features. 3664 */ 3665 public void setKeyguardDisabledFeatures(ComponentName who, int which, int userHandle) { 3666 if (!mHasFeature) { 3667 return; 3668 } 3669 enforceCrossUserPermission(userHandle); 3670 enforceNotManagedProfile(userHandle, "disable keyguard features"); 3671 synchronized (this) { 3672 if (who == null) { 3673 throw new NullPointerException("ComponentName is null"); 3674 } 3675 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3676 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 3677 if (ap.disabledKeyguardFeatures != which) { 3678 ap.disabledKeyguardFeatures = which; 3679 saveSettingsLocked(userHandle); 3680 } 3681 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 3682 } 3683 } 3684 3685 /** 3686 * Gets the disabled state for features in keyguard for the given admin, 3687 * or the aggregate of all active admins if who is null. 3688 */ 3689 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 3690 if (!mHasFeature) { 3691 return 0; 3692 } 3693 enforceCrossUserPermission(userHandle); 3694 synchronized (this) { 3695 if (who != null) { 3696 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3697 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 3698 } 3699 3700 // Determine which keyguard features are disabled for any active admins. 3701 DevicePolicyData policy = getUserData(userHandle); 3702 final int N = policy.mAdminList.size(); 3703 int which = 0; 3704 for (int i = 0; i < N; i++) { 3705 ActiveAdmin admin = policy.mAdminList.get(i); 3706 which |= admin.disabledKeyguardFeatures; 3707 } 3708 return which; 3709 } 3710 } 3711 3712 @Override 3713 public boolean setDeviceOwner(String packageName, String ownerName) { 3714 if (!mHasFeature) { 3715 return false; 3716 } 3717 if (packageName == null 3718 || !DeviceOwner.isInstalled(packageName, mContext.getPackageManager())) { 3719 throw new IllegalArgumentException("Invalid package name " + packageName 3720 + " for device owner"); 3721 } 3722 synchronized (this) { 3723 if (!allowedToSetDeviceOwnerOnDevice()) { 3724 throw new IllegalStateException( 3725 "Trying to set device owner but device is already provisioned."); 3726 } 3727 3728 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3729 throw new IllegalStateException( 3730 "Trying to set device owner but device owner is already set."); 3731 } 3732 3733 // Shutting down backup manager service permanently. 3734 long ident = Binder.clearCallingIdentity(); 3735 try { 3736 IBackupManager ibm = IBackupManager.Stub.asInterface( 3737 ServiceManager.getService(Context.BACKUP_SERVICE)); 3738 ibm.setBackupServiceActive(UserHandle.USER_OWNER, false); 3739 } catch (RemoteException e) { 3740 throw new IllegalStateException("Failed deactivating backup service.", e); 3741 } finally { 3742 Binder.restoreCallingIdentity(ident); 3743 } 3744 3745 if (mDeviceOwner == null) { 3746 // Device owner is not set and does not exist, set it. 3747 mDeviceOwner = DeviceOwner.createWithDeviceOwner(packageName, ownerName); 3748 mDeviceOwner.writeOwnerFile(); 3749 return true; 3750 } else { 3751 // Device owner is not set but a profile owner exists, update Device owner state. 3752 mDeviceOwner.setDeviceOwner(packageName, ownerName); 3753 mDeviceOwner.writeOwnerFile(); 3754 return true; 3755 } 3756 } 3757 } 3758 3759 @Override 3760 public boolean isDeviceOwner(String packageName) { 3761 if (!mHasFeature) { 3762 return false; 3763 } 3764 synchronized (this) { 3765 return mDeviceOwner != null 3766 && mDeviceOwner.hasDeviceOwner() 3767 && mDeviceOwner.getDeviceOwnerPackageName().equals(packageName); 3768 } 3769 } 3770 3771 @Override 3772 public String getDeviceOwner() { 3773 if (!mHasFeature) { 3774 return null; 3775 } 3776 synchronized (this) { 3777 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3778 return mDeviceOwner.getDeviceOwnerPackageName(); 3779 } 3780 } 3781 return null; 3782 } 3783 3784 @Override 3785 public String getDeviceOwnerName() { 3786 if (!mHasFeature) { 3787 return null; 3788 } 3789 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3790 synchronized (this) { 3791 if (mDeviceOwner != null) { 3792 return mDeviceOwner.getDeviceOwnerName(); 3793 } 3794 } 3795 return null; 3796 } 3797 3798 // Returns the active device owner or null if there is no device owner. 3799 private ActiveAdmin getDeviceOwnerAdmin() { 3800 String deviceOwnerPackageName = getDeviceOwner(); 3801 if (deviceOwnerPackageName == null) { 3802 return null; 3803 } 3804 3805 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3806 final int n = policy.mAdminList.size(); 3807 for (int i = 0; i < n; i++) { 3808 ActiveAdmin admin = policy.mAdminList.get(i); 3809 if (deviceOwnerPackageName.equals(admin.info.getPackageName())) { 3810 return admin; 3811 } 3812 } 3813 return null; 3814 } 3815 3816 @Override 3817 public void clearDeviceOwner(String packageName) { 3818 if (packageName == null) { 3819 throw new NullPointerException("packageName is null"); 3820 } 3821 try { 3822 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 3823 if (uid != Binder.getCallingUid()) { 3824 throw new SecurityException("Invalid packageName"); 3825 } 3826 } catch (NameNotFoundException e) { 3827 throw new SecurityException(e); 3828 } 3829 if (!isDeviceOwner(packageName)) { 3830 throw new SecurityException("clearDeviceOwner can only be called by the device owner"); 3831 } 3832 synchronized (this) { 3833 long ident = Binder.clearCallingIdentity(); 3834 try { 3835 clearUserRestrictions(new UserHandle(UserHandle.USER_OWNER)); 3836 if (mDeviceOwner != null) { 3837 mDeviceOwner.clearDeviceOwner(); 3838 mDeviceOwner.writeOwnerFile(); 3839 } 3840 } finally { 3841 Binder.restoreCallingIdentity(ident); 3842 } 3843 } 3844 } 3845 3846 @Override 3847 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 3848 if (!mHasFeature) { 3849 return false; 3850 } 3851 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3852 3853 UserInfo info = mUserManager.getUserInfo(userHandle); 3854 if (info == null) { 3855 // User doesn't exist. 3856 throw new IllegalArgumentException( 3857 "Attempted to set profile owner for invalid userId: " + userHandle); 3858 } 3859 if (info.isGuest()) { 3860 throw new IllegalStateException("Cannot set a profile owner on a guest"); 3861 } 3862 3863 if (who == null 3864 || !DeviceOwner.isInstalledForUser(who.getPackageName(), userHandle)) { 3865 throw new IllegalArgumentException("Component " + who 3866 + " not installed for userId:" + userHandle); 3867 } 3868 synchronized (this) { 3869 // Only SYSTEM_UID can override the userSetupComplete 3870 if (UserHandle.getAppId(Binder.getCallingUid()) != Process.SYSTEM_UID 3871 && hasUserSetupCompleted(userHandle)) { 3872 throw new IllegalStateException( 3873 "Trying to set profile owner but user is already set-up."); 3874 } 3875 3876 if (mDeviceOwner == null) { 3877 // Device owner state does not exist, create it. 3878 mDeviceOwner = DeviceOwner.createWithProfileOwner(who, ownerName, 3879 userHandle); 3880 mDeviceOwner.writeOwnerFile(); 3881 return true; 3882 } else { 3883 // Device owner already exists, update it. 3884 mDeviceOwner.setProfileOwner(who, ownerName, userHandle); 3885 mDeviceOwner.writeOwnerFile(); 3886 return true; 3887 } 3888 } 3889 } 3890 3891 @Override 3892 public void clearProfileOwner(ComponentName who) { 3893 if (!mHasFeature) { 3894 return; 3895 } 3896 UserHandle callingUser = Binder.getCallingUserHandle(); 3897 // Check if this is the profile owner who is calling 3898 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3899 synchronized (this) { 3900 long ident = Binder.clearCallingIdentity(); 3901 try { 3902 clearUserRestrictions(callingUser); 3903 if (mDeviceOwner != null) { 3904 mDeviceOwner.removeProfileOwner(callingUser.getIdentifier()); 3905 mDeviceOwner.writeOwnerFile(); 3906 } 3907 } finally { 3908 Binder.restoreCallingIdentity(ident); 3909 } 3910 } 3911 } 3912 3913 private void clearUserRestrictions(UserHandle userHandle) { 3914 AudioManager audioManager = 3915 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 3916 Bundle userRestrictions = mUserManager.getUserRestrictions(); 3917 mUserManager.setUserRestrictions(new Bundle(), userHandle); 3918 if (userRestrictions.getBoolean(UserManager.DISALLOW_ADJUST_VOLUME)) { 3919 audioManager.setMasterMute(false); 3920 } 3921 if (userRestrictions.getBoolean(UserManager.DISALLOW_UNMUTE_MICROPHONE)) { 3922 audioManager.setMicrophoneMute(false); 3923 } 3924 } 3925 3926 @Override 3927 public boolean hasUserSetupCompleted() { 3928 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 3929 } 3930 3931 private boolean hasUserSetupCompleted(int userHandle) { 3932 if (!mHasFeature) { 3933 return true; 3934 } 3935 DevicePolicyData policy = getUserData(userHandle); 3936 // If policy is null, return true, else check if the setup has completed. 3937 return policy == null || policy.mUserSetupComplete; 3938 } 3939 3940 @Override 3941 public void setProfileEnabled(ComponentName who) { 3942 if (!mHasFeature) { 3943 return; 3944 } 3945 final int userHandle = UserHandle.getCallingUserId(); 3946 synchronized (this) { 3947 // Check for permissions 3948 if (who == null) { 3949 throw new NullPointerException("ComponentName is null"); 3950 } 3951 // Check if this is the profile owner who is calling 3952 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3953 int userId = UserHandle.getCallingUserId(); 3954 3955 long id = Binder.clearCallingIdentity(); 3956 try { 3957 mUserManager.setUserEnabled(userId); 3958 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 3959 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 3960 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 3961 Intent.FLAG_RECEIVER_FOREGROUND); 3962 // TODO This should send to parent of profile (which is always owner at the moment). 3963 mContext.sendBroadcastAsUser(intent, UserHandle.OWNER); 3964 } finally { 3965 restoreCallingIdentity(id); 3966 } 3967 } 3968 } 3969 3970 @Override 3971 public void setProfileName(ComponentName who, String profileName) { 3972 int userId = UserHandle.getCallingUserId(); 3973 3974 if (who == null) { 3975 throw new NullPointerException("ComponentName is null"); 3976 } 3977 3978 // Check if this is the profile owner (includes device owner). 3979 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3980 3981 long id = Binder.clearCallingIdentity(); 3982 try { 3983 mUserManager.setUserName(userId, profileName); 3984 } finally { 3985 restoreCallingIdentity(id); 3986 } 3987 } 3988 3989 @Override 3990 public ComponentName getProfileOwner(int userHandle) { 3991 if (!mHasFeature) { 3992 return null; 3993 } 3994 3995 synchronized (this) { 3996 if (mDeviceOwner != null) { 3997 return mDeviceOwner.getProfileOwnerComponent(userHandle); 3998 } 3999 } 4000 return null; 4001 } 4002 4003 // Returns the active profile owner for this user or null if the current user has no 4004 // profile owner. 4005 private ActiveAdmin getProfileOwnerAdmin(int userHandle) { 4006 ComponentName profileOwner = 4007 mDeviceOwner != null ? mDeviceOwner.getProfileOwnerComponent(userHandle) : null; 4008 if (profileOwner == null) { 4009 return null; 4010 } 4011 4012 DevicePolicyData policy = getUserData(userHandle); 4013 final int n = policy.mAdminList.size(); 4014 for (int i = 0; i < n; i++) { 4015 ActiveAdmin admin = policy.mAdminList.get(i); 4016 if (profileOwner.equals(admin.info.getComponent())) { 4017 return admin; 4018 } 4019 } 4020 return null; 4021 } 4022 4023 @Override 4024 public String getProfileOwnerName(int userHandle) { 4025 if (!mHasFeature) { 4026 return null; 4027 } 4028 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4029 4030 synchronized (this) { 4031 if (mDeviceOwner != null) { 4032 return mDeviceOwner.getProfileOwnerName(userHandle); 4033 } 4034 } 4035 return null; 4036 } 4037 4038 /** 4039 * Device owner can only be set on an unprovisioned device, unless it was initiated by "adb", in 4040 * which case we allow it if no account is associated with the device. 4041 */ 4042 private boolean allowedToSetDeviceOwnerOnDevice() { 4043 int callingId = Binder.getCallingUid(); 4044 if (callingId == Process.SHELL_UID || callingId == Process.ROOT_UID) { 4045 return AccountManager.get(mContext).getAccounts().length == 0; 4046 } else { 4047 return !hasUserSetupCompleted(UserHandle.USER_OWNER); 4048 } 4049 } 4050 4051 private void enforceCrossUserPermission(int userHandle) { 4052 if (userHandle < 0) { 4053 throw new IllegalArgumentException("Invalid userId " + userHandle); 4054 } 4055 final int callingUid = Binder.getCallingUid(); 4056 if (userHandle == UserHandle.getUserId(callingUid)) return; 4057 if (callingUid != Process.SYSTEM_UID && callingUid != 0) { 4058 mContext.enforceCallingOrSelfPermission( 4059 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 4060 + " INTERACT_ACROSS_USERS_FULL permission"); 4061 } 4062 } 4063 4064 private void enforceSystemProcess(String message) { 4065 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4066 throw new SecurityException(message); 4067 } 4068 } 4069 4070 private void enforceNotManagedProfile(int userHandle, String message) { 4071 if(isManagedProfile(userHandle)) { 4072 throw new SecurityException("You can not " + message + " for a managed profile. "); 4073 } 4074 } 4075 4076 private UserInfo getProfileParent(int userHandle) { 4077 long ident = Binder.clearCallingIdentity(); 4078 try { 4079 return mUserManager.getProfileParent(userHandle); 4080 } finally { 4081 Binder.restoreCallingIdentity(ident); 4082 } 4083 } 4084 4085 private boolean isManagedProfile(int userHandle) { 4086 long ident = Binder.clearCallingIdentity(); 4087 try { 4088 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 4089 } finally { 4090 Binder.restoreCallingIdentity(ident); 4091 } 4092 } 4093 4094 private void enableIfNecessary(String packageName, int userId) { 4095 try { 4096 IPackageManager ipm = AppGlobals.getPackageManager(); 4097 ApplicationInfo ai = ipm.getApplicationInfo(packageName, 4098 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 4099 userId); 4100 if (ai.enabledSetting 4101 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 4102 ipm.setApplicationEnabledSetting(packageName, 4103 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 4104 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 4105 } 4106 } catch (RemoteException e) { 4107 } 4108 } 4109 4110 @Override 4111 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 4112 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 4113 != PackageManager.PERMISSION_GRANTED) { 4114 4115 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 4116 + Binder.getCallingPid() 4117 + ", uid=" + Binder.getCallingUid()); 4118 return; 4119 } 4120 4121 final Printer p = new PrintWriterPrinter(pw); 4122 4123 synchronized (this) { 4124 p.println("Current Device Policy Manager state:"); 4125 4126 int userCount = mUserData.size(); 4127 for (int u = 0; u < userCount; u++) { 4128 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 4129 p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 4130 final int N = policy.mAdminList.size(); 4131 for (int i=0; i<N; i++) { 4132 ActiveAdmin ap = policy.mAdminList.get(i); 4133 if (ap != null) { 4134 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 4135 pw.println(":"); 4136 ap.dump(" ", pw); 4137 } 4138 } 4139 if (!policy.mRemovingAdmins.isEmpty()) { 4140 p.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 4141 + policy.mRemovingAdmins); 4142 } 4143 4144 pw.println(" "); 4145 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 4146 } 4147 } 4148 } 4149 4150 @Override 4151 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 4152 ComponentName activity) { 4153 final int userHandle = UserHandle.getCallingUserId(); 4154 4155 synchronized (this) { 4156 if (who == null) { 4157 throw new NullPointerException("ComponentName is null"); 4158 } 4159 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4160 4161 IPackageManager pm = AppGlobals.getPackageManager(); 4162 long id = Binder.clearCallingIdentity(); 4163 try { 4164 pm.addPersistentPreferredActivity(filter, activity, userHandle); 4165 } catch (RemoteException re) { 4166 // Shouldn't happen 4167 } finally { 4168 restoreCallingIdentity(id); 4169 } 4170 } 4171 } 4172 4173 @Override 4174 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 4175 final int userHandle = UserHandle.getCallingUserId(); 4176 4177 synchronized (this) { 4178 if (who == null) { 4179 throw new NullPointerException("ComponentName is null"); 4180 } 4181 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4182 4183 IPackageManager pm = AppGlobals.getPackageManager(); 4184 long id = Binder.clearCallingIdentity(); 4185 try { 4186 pm.clearPackagePersistentPreferredActivities(packageName, userHandle); 4187 } catch (RemoteException re) { 4188 // Shouldn't happen 4189 } finally { 4190 restoreCallingIdentity(id); 4191 } 4192 } 4193 } 4194 4195 @Override 4196 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 4197 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4198 4199 synchronized (this) { 4200 if (who == null) { 4201 throw new NullPointerException("ComponentName is null"); 4202 } 4203 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4204 4205 long id = Binder.clearCallingIdentity(); 4206 try { 4207 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 4208 } finally { 4209 restoreCallingIdentity(id); 4210 } 4211 } 4212 } 4213 4214 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 4215 PersistableBundle args, int userHandle) { 4216 if (!mHasFeature) { 4217 return; 4218 } 4219 enforceCrossUserPermission(userHandle); 4220 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 4221 synchronized (this) { 4222 if (admin == null) { 4223 throw new NullPointerException("admin is null"); 4224 } 4225 if (agent == null) { 4226 throw new NullPointerException("agent is null"); 4227 } 4228 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 4229 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4230 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 4231 saveSettingsLocked(userHandle); 4232 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 4233 } 4234 } 4235 4236 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 4237 ComponentName agent, int userHandle) { 4238 if (!mHasFeature) { 4239 return null; 4240 } 4241 enforceCrossUserPermission(userHandle); 4242 if (agent == null) { 4243 throw new NullPointerException("agent is null"); 4244 } 4245 4246 synchronized (this) { 4247 final String componentName = agent.flattenToString(); 4248 if (admin != null) { 4249 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 4250 if (ap == null) return null; 4251 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 4252 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 4253 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 4254 result.add(trustAgentInfo.options); 4255 return result; 4256 } 4257 4258 // Return strictest policy for this user and profiles that are visible from this user. 4259 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 4260 List<PersistableBundle> result = null; 4261 4262 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 4263 // of the options. If any admin doesn't have options, discard options for the rest 4264 // and return null. 4265 boolean allAdminsHaveOptions = true; 4266 for (UserInfo userInfo : profiles) { 4267 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 4268 final int N = policy.mAdminList.size(); 4269 for (int i=0; i < N; i++) { 4270 final ActiveAdmin active = policy.mAdminList.get(i); 4271 final boolean disablesTrust = (active.disabledKeyguardFeatures 4272 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 4273 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 4274 if (info != null && info.options != null && !info.options.isEmpty()) { 4275 if (disablesTrust) { 4276 if (result == null) { 4277 result = new ArrayList<PersistableBundle>(); 4278 } 4279 result.add(info.options); 4280 } else { 4281 Log.w(LOG_TAG, "Ignoring admin " + active.info 4282 + " because it has trust options but doesn't declare " 4283 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 4284 } 4285 } else if (disablesTrust) { 4286 allAdminsHaveOptions = false; 4287 break; 4288 } 4289 } 4290 } 4291 return allAdminsHaveOptions ? result : null; 4292 } 4293 } 4294 4295 @Override 4296 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 4297 synchronized (this) { 4298 if (who == null) { 4299 throw new NullPointerException("ComponentName is null"); 4300 } 4301 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4302 4303 int userHandle = UserHandle.getCallingUserId(); 4304 DevicePolicyData userData = getUserData(userHandle); 4305 userData.mRestrictionsProvider = permissionProvider; 4306 saveSettingsLocked(userHandle); 4307 } 4308 } 4309 4310 @Override 4311 public ComponentName getRestrictionsProvider(int userHandle) { 4312 synchronized (this) { 4313 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4314 throw new SecurityException("Only the system can query the permission provider"); 4315 } 4316 DevicePolicyData userData = getUserData(userHandle); 4317 return userData != null ? userData.mRestrictionsProvider : null; 4318 } 4319 } 4320 4321 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 4322 int callingUserId = UserHandle.getCallingUserId(); 4323 synchronized (this) { 4324 if (who == null) { 4325 throw new NullPointerException("ComponentName is null"); 4326 } 4327 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4328 4329 IPackageManager pm = AppGlobals.getPackageManager(); 4330 long id = Binder.clearCallingIdentity(); 4331 try { 4332 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 4333 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), 4334 mContext.getUserId(), callingUserId, UserHandle.USER_OWNER, 0); 4335 } 4336 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 4337 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), 4338 mContext.getUserId(), UserHandle.USER_OWNER, callingUserId, 0); 4339 } 4340 } catch (RemoteException re) { 4341 // Shouldn't happen 4342 } finally { 4343 restoreCallingIdentity(id); 4344 } 4345 } 4346 } 4347 4348 public void clearCrossProfileIntentFilters(ComponentName who) { 4349 int callingUserId = UserHandle.getCallingUserId(); 4350 synchronized (this) { 4351 if (who == null) { 4352 throw new NullPointerException("ComponentName is null"); 4353 } 4354 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4355 IPackageManager pm = AppGlobals.getPackageManager(); 4356 long id = Binder.clearCallingIdentity(); 4357 try { 4358 pm.clearCrossProfileIntentFilters(callingUserId, who.getPackageName(), 4359 callingUserId); 4360 // If we want to support multiple managed profiles, we will have to only remove 4361 // those that have callingUserId as their target. 4362 pm.clearCrossProfileIntentFilters(UserHandle.USER_OWNER, who.getPackageName(), 4363 callingUserId); 4364 } catch (RemoteException re) { 4365 // Shouldn't happen 4366 } finally { 4367 restoreCallingIdentity(id); 4368 } 4369 } 4370 } 4371 4372 /** 4373 * @return true if all packages in enabledPackages are either in the list 4374 * permittedList or are a system app. 4375 */ 4376 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 4377 List<String> permittedList) { 4378 int userIdToCheck = UserHandle.getCallingUserId(); 4379 long id = Binder.clearCallingIdentity(); 4380 try { 4381 // If we have an enabled packages list for a managed profile the packages 4382 // we should check are installed for the parent user. 4383 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 4384 if (user.isManagedProfile()) { 4385 userIdToCheck = user.profileGroupId; 4386 } 4387 4388 IPackageManager pm = AppGlobals.getPackageManager(); 4389 for (String enabledPackage : enabledPackages) { 4390 boolean systemService = false; 4391 try { 4392 ApplicationInfo applicationInfo = pm.getApplicationInfo(enabledPackage, 4393 PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 4394 systemService = (applicationInfo.flags 4395 & ApplicationInfo.FLAG_SYSTEM) != 0; 4396 } catch (RemoteException e) { 4397 Log.i(LOG_TAG, "Can't talk to package managed", e); 4398 } 4399 if (!systemService && !permittedList.contains(enabledPackage)) { 4400 return false; 4401 } 4402 } 4403 } finally { 4404 restoreCallingIdentity(id); 4405 } 4406 return true; 4407 } 4408 4409 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 4410 // Not using AccessibilityManager.getInstance because that guesses 4411 // at the user you require based on callingUid and caches for a given 4412 // process. 4413 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 4414 IAccessibilityManager service = iBinder == null 4415 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 4416 return new AccessibilityManager(mContext, service, userId); 4417 } 4418 4419 @Override 4420 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 4421 if (!mHasFeature) { 4422 return false; 4423 } 4424 if (who == null) { 4425 throw new NullPointerException("ComponentName is null"); 4426 } 4427 4428 if (packageList != null) { 4429 int userId = UserHandle.getCallingUserId(); 4430 List<AccessibilityServiceInfo> enabledServices = null; 4431 long id = Binder.clearCallingIdentity(); 4432 try { 4433 UserInfo user = mUserManager.getUserInfo(userId); 4434 if (user.isManagedProfile()) { 4435 userId = user.profileGroupId; 4436 } 4437 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 4438 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 4439 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 4440 } finally { 4441 restoreCallingIdentity(id); 4442 } 4443 4444 if (enabledServices != null) { 4445 List<String> enabledPackages = new ArrayList<String>(); 4446 for (AccessibilityServiceInfo service : enabledServices) { 4447 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 4448 } 4449 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 4450 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 4451 + "because it contains already enabled accesibility services."); 4452 return false; 4453 } 4454 } 4455 } 4456 4457 synchronized (this) { 4458 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4459 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4460 admin.permittedAccessiblityServices = packageList; 4461 saveSettingsLocked(UserHandle.getCallingUserId()); 4462 } 4463 return true; 4464 } 4465 4466 @Override 4467 public List getPermittedAccessibilityServices(ComponentName who) { 4468 if (!mHasFeature) { 4469 return null; 4470 } 4471 4472 if (who == null) { 4473 throw new NullPointerException("ComponentName is null"); 4474 } 4475 4476 synchronized (this) { 4477 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4478 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4479 return admin.permittedAccessiblityServices; 4480 } 4481 } 4482 4483 @Override 4484 public List getPermittedAccessibilityServicesForUser(int userId) { 4485 if (!mHasFeature) { 4486 return null; 4487 } 4488 synchronized (this) { 4489 List<String> result = null; 4490 // If we have multiple profiles we return the intersection of the 4491 // permitted lists. This can happen in cases where we have a device 4492 // and profile owner. 4493 List<UserInfo> profiles = mUserManager.getProfiles(userId); 4494 final int PROFILES_SIZE = profiles.size(); 4495 for (int i = 0; i < PROFILES_SIZE; ++i) { 4496 // Just loop though all admins, only device or profiles 4497 // owners can have permitted lists set. 4498 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 4499 final int N = policy.mAdminList.size(); 4500 for (int j = 0; j < N; j++) { 4501 ActiveAdmin admin = policy.mAdminList.get(j); 4502 List<String> fromAdmin = admin.permittedAccessiblityServices; 4503 if (fromAdmin != null) { 4504 if (result == null) { 4505 result = new ArrayList<String>(fromAdmin); 4506 } else { 4507 result.retainAll(fromAdmin); 4508 } 4509 } 4510 } 4511 } 4512 4513 // If we have a permitted list add all system accessibility services. 4514 if (result != null) { 4515 long id = Binder.clearCallingIdentity(); 4516 try { 4517 UserInfo user = mUserManager.getUserInfo(userId); 4518 if (user.isManagedProfile()) { 4519 userId = user.profileGroupId; 4520 } 4521 AccessibilityManager accessibilityManager = 4522 getAccessibilityManagerForUser(userId); 4523 List<AccessibilityServiceInfo> installedServices = 4524 accessibilityManager.getInstalledAccessibilityServiceList(); 4525 4526 IPackageManager pm = AppGlobals.getPackageManager(); 4527 if (installedServices != null) { 4528 for (AccessibilityServiceInfo service : installedServices) { 4529 String packageName = service.getResolveInfo().serviceInfo.packageName; 4530 try { 4531 ApplicationInfo applicationInfo = pm.getApplicationInfo(packageName, 4532 PackageManager.GET_UNINSTALLED_PACKAGES, userId); 4533 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 4534 result.add(packageName); 4535 } 4536 } catch (RemoteException e) { 4537 Log.i(LOG_TAG, "Accessibility service in missing package", e); 4538 } 4539 } 4540 } 4541 } finally { 4542 restoreCallingIdentity(id); 4543 } 4544 } 4545 4546 return result; 4547 } 4548 } 4549 4550 private boolean checkCallerIsCurrentUserOrProfile() { 4551 int callingUserId = UserHandle.getCallingUserId(); 4552 long token = Binder.clearCallingIdentity(); 4553 try { 4554 UserInfo currentUser; 4555 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 4556 try { 4557 currentUser = ActivityManagerNative.getDefault().getCurrentUser(); 4558 } catch (RemoteException e) { 4559 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 4560 return false; 4561 } 4562 4563 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 4564 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 4565 + "of a user that isn't the foreground user."); 4566 return false; 4567 } 4568 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 4569 Slog.e(LOG_TAG, "Cannot set permitted input methods " 4570 + "of a user that isn't the foreground user."); 4571 return false; 4572 } 4573 } finally { 4574 Binder.restoreCallingIdentity(token); 4575 } 4576 return true; 4577 } 4578 4579 @Override 4580 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 4581 if (!mHasFeature) { 4582 return false; 4583 } 4584 if (who == null) { 4585 throw new NullPointerException("ComponentName is null"); 4586 } 4587 4588 // TODO When InputMethodManager supports per user calls remove 4589 // this restriction. 4590 if (!checkCallerIsCurrentUserOrProfile()) { 4591 return false; 4592 } 4593 4594 if (packageList != null) { 4595 // InputMethodManager fetches input methods for current user. 4596 // So this can only be set when calling user is the current user 4597 // or parent is current user in case of managed profiles. 4598 InputMethodManager inputMethodManager = (InputMethodManager) mContext 4599 .getSystemService(Context.INPUT_METHOD_SERVICE); 4600 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 4601 4602 if (enabledImes != null) { 4603 List<String> enabledPackages = new ArrayList<String>(); 4604 for (InputMethodInfo ime : enabledImes) { 4605 enabledPackages.add(ime.getPackageName()); 4606 } 4607 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 4608 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 4609 + "because it contains already enabled input method."); 4610 return false; 4611 } 4612 } 4613 } 4614 4615 synchronized (this) { 4616 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4617 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4618 admin.permittedInputMethods = packageList; 4619 saveSettingsLocked(UserHandle.getCallingUserId()); 4620 } 4621 return true; 4622 } 4623 4624 @Override 4625 public List getPermittedInputMethods(ComponentName who) { 4626 if (!mHasFeature) { 4627 return null; 4628 } 4629 4630 if (who == null) { 4631 throw new NullPointerException("ComponentName is null"); 4632 } 4633 4634 synchronized (this) { 4635 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4636 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4637 return admin.permittedInputMethods; 4638 } 4639 } 4640 4641 @Override 4642 public List getPermittedInputMethodsForCurrentUser() { 4643 UserInfo currentUser; 4644 try { 4645 currentUser = ActivityManagerNative.getDefault().getCurrentUser(); 4646 } catch (RemoteException e) { 4647 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 4648 // Activity managed is dead, just allow all IMEs 4649 return null; 4650 } 4651 4652 int userId = currentUser.id; 4653 synchronized (this) { 4654 List<String> result = null; 4655 // If we have multiple profiles we return the intersection of the 4656 // permitted lists. This can happen in cases where we have a device 4657 // and profile owner. 4658 List<UserInfo> profiles = mUserManager.getProfiles(userId); 4659 final int PROFILES_SIZE = profiles.size(); 4660 for (int i = 0; i < PROFILES_SIZE; ++i) { 4661 // Just loop though all admins, only device or profiles 4662 // owners can have permitted lists set. 4663 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 4664 final int N = policy.mAdminList.size(); 4665 for (int j = 0; j < N; j++) { 4666 ActiveAdmin admin = policy.mAdminList.get(j); 4667 List<String> fromAdmin = admin.permittedInputMethods; 4668 if (fromAdmin != null) { 4669 if (result == null) { 4670 result = new ArrayList<String>(fromAdmin); 4671 } else { 4672 result.retainAll(fromAdmin); 4673 } 4674 } 4675 } 4676 } 4677 4678 // If we have a permitted list add all system input methods. 4679 if (result != null) { 4680 InputMethodManager inputMethodManager = (InputMethodManager) mContext 4681 .getSystemService(Context.INPUT_METHOD_SERVICE); 4682 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 4683 long id = Binder.clearCallingIdentity(); 4684 try { 4685 IPackageManager pm = AppGlobals.getPackageManager(); 4686 if (imes != null) { 4687 for (InputMethodInfo ime : imes) { 4688 String packageName = ime.getPackageName(); 4689 try { 4690 ApplicationInfo applicationInfo = pm.getApplicationInfo( 4691 packageName, PackageManager.GET_UNINSTALLED_PACKAGES, 4692 userId); 4693 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 4694 result.add(packageName); 4695 } 4696 } catch (RemoteException e) { 4697 Log.i(LOG_TAG, "Input method for missing package", e); 4698 } 4699 } 4700 } 4701 } finally { 4702 restoreCallingIdentity(id); 4703 } 4704 } 4705 return result; 4706 } 4707 } 4708 4709 @Override 4710 public UserHandle createUser(ComponentName who, String name) { 4711 synchronized (this) { 4712 if (who == null) { 4713 throw new NullPointerException("ComponentName is null"); 4714 } 4715 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4716 4717 long id = Binder.clearCallingIdentity(); 4718 try { 4719 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 4720 if (userInfo != null) { 4721 return userInfo.getUserHandle(); 4722 } 4723 return null; 4724 } finally { 4725 restoreCallingIdentity(id); 4726 } 4727 } 4728 } 4729 4730 @Override 4731 public UserHandle createAndInitializeUser(ComponentName who, String name, 4732 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 4733 UserHandle user = createUser(who, name); 4734 long id = Binder.clearCallingIdentity(); 4735 try { 4736 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 4737 final IPackageManager ipm = AppGlobals.getPackageManager(); 4738 IActivityManager activityManager = ActivityManagerNative.getDefault(); 4739 4740 try { 4741 // Install the profile owner if not present. 4742 if (!ipm.isPackageAvailable(profileOwnerPkg, user.getIdentifier())) { 4743 ipm.installExistingPackageAsUser(profileOwnerPkg, user.getIdentifier()); 4744 } 4745 4746 // Start user in background. 4747 activityManager.startUserInBackground(user.getIdentifier()); 4748 } catch (RemoteException e) { 4749 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 4750 } 4751 4752 setActiveAdmin(profileOwnerComponent, true, user.getIdentifier(), adminExtras); 4753 setProfileOwner(profileOwnerComponent, ownerName, user.getIdentifier()); 4754 return user; 4755 } finally { 4756 restoreCallingIdentity(id); 4757 } 4758 } 4759 4760 @Override 4761 public boolean removeUser(ComponentName who, UserHandle userHandle) { 4762 synchronized (this) { 4763 if (who == null) { 4764 throw new NullPointerException("ComponentName is null"); 4765 } 4766 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4767 4768 long id = Binder.clearCallingIdentity(); 4769 try { 4770 return mUserManager.removeUser(userHandle.getIdentifier()); 4771 } finally { 4772 restoreCallingIdentity(id); 4773 } 4774 } 4775 } 4776 4777 @Override 4778 public boolean switchUser(ComponentName who, UserHandle userHandle) { 4779 synchronized (this) { 4780 if (who == null) { 4781 throw new NullPointerException("ComponentName is null"); 4782 } 4783 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4784 4785 long id = Binder.clearCallingIdentity(); 4786 try { 4787 int userId = UserHandle.USER_OWNER; 4788 if (userHandle != null) { 4789 userId = userHandle.getIdentifier(); 4790 } 4791 return ActivityManagerNative.getDefault().switchUser(userId); 4792 } catch (RemoteException e) { 4793 Log.e(LOG_TAG, "Couldn't switch user", e); 4794 return false; 4795 } finally { 4796 restoreCallingIdentity(id); 4797 } 4798 } 4799 } 4800 4801 @Override 4802 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 4803 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4804 4805 synchronized (this) { 4806 if (who == null) { 4807 throw new NullPointerException("ComponentName is null"); 4808 } 4809 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4810 4811 long id = Binder.clearCallingIdentity(); 4812 try { 4813 return mUserManager.getApplicationRestrictions(packageName, userHandle); 4814 } finally { 4815 restoreCallingIdentity(id); 4816 } 4817 } 4818 } 4819 4820 @Override 4821 public void setUserRestriction(ComponentName who, String key, boolean enabled) { 4822 final UserHandle user = new UserHandle(UserHandle.getCallingUserId()); 4823 final int userHandle = user.getIdentifier(); 4824 synchronized (this) { 4825 if (who == null) { 4826 throw new NullPointerException("ComponentName is null"); 4827 } 4828 ActiveAdmin activeAdmin = 4829 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4830 boolean isDeviceOwner = isDeviceOwner(activeAdmin.info.getPackageName()); 4831 if (!isDeviceOwner && userHandle != UserHandle.USER_OWNER 4832 && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) { 4833 throw new SecurityException("Profile owners cannot set user restriction " + key); 4834 } 4835 boolean alreadyRestricted = mUserManager.hasUserRestriction(key, user); 4836 4837 IAudioService iAudioService = null; 4838 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key) 4839 || UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4840 iAudioService = IAudioService.Stub.asInterface( 4841 ServiceManager.getService(Context.AUDIO_SERVICE)); 4842 } 4843 4844 if (enabled && !alreadyRestricted) { 4845 try { 4846 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 4847 iAudioService.setMicrophoneMute(true, who.getPackageName()); 4848 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4849 iAudioService.setMasterMute(true, 0, who.getPackageName(), null); 4850 } 4851 } catch (RemoteException re) { 4852 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 4853 } 4854 } 4855 long id = Binder.clearCallingIdentity(); 4856 try { 4857 if (enabled && !alreadyRestricted) { 4858 if (UserManager.DISALLOW_CONFIG_WIFI.equals(key)) { 4859 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4860 Settings.Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON, 0, 4861 userHandle); 4862 } else if (UserManager.DISALLOW_USB_FILE_TRANSFER.equals(key)) { 4863 UsbManager manager = 4864 (UsbManager) mContext.getSystemService(Context.USB_SERVICE); 4865 manager.setCurrentFunction("none", false); 4866 } else if (UserManager.DISALLOW_SHARE_LOCATION.equals(key)) { 4867 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4868 Settings.Secure.LOCATION_MODE, Settings.Secure.LOCATION_MODE_OFF, 4869 userHandle); 4870 Settings.Secure.putStringForUser(mContext.getContentResolver(), 4871 Settings.Secure.LOCATION_PROVIDERS_ALLOWED, "", 4872 userHandle); 4873 } else if (UserManager.DISALLOW_DEBUGGING_FEATURES.equals(key)) { 4874 // Only disable adb if changing for primary user, since it is global 4875 if (userHandle == UserHandle.USER_OWNER) { 4876 Settings.Global.putStringForUser(mContext.getContentResolver(), 4877 Settings.Global.ADB_ENABLED, "0", userHandle); 4878 } 4879 } else if (UserManager.ENSURE_VERIFY_APPS.equals(key)) { 4880 Settings.Global.putStringForUser(mContext.getContentResolver(), 4881 Settings.Global.PACKAGE_VERIFIER_ENABLE, "1", 4882 userHandle); 4883 Settings.Global.putStringForUser(mContext.getContentResolver(), 4884 Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, "1", 4885 userHandle); 4886 } else if (UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES.equals(key)) { 4887 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4888 Settings.Secure.INSTALL_NON_MARKET_APPS, 0, 4889 userHandle); 4890 } 4891 } 4892 mUserManager.setUserRestriction(key, enabled, user); 4893 } finally { 4894 restoreCallingIdentity(id); 4895 } 4896 if (!enabled && alreadyRestricted) { 4897 try { 4898 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 4899 iAudioService.setMicrophoneMute(false, who.getPackageName()); 4900 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4901 iAudioService.setMasterMute(false, 0, who.getPackageName(), null); 4902 } 4903 } catch (RemoteException re) { 4904 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 4905 } 4906 } 4907 sendChangedNotification(userHandle); 4908 } 4909 } 4910 4911 @Override 4912 public boolean setApplicationHidden(ComponentName who, String packageName, 4913 boolean hidden) { 4914 int callingUserId = UserHandle.getCallingUserId(); 4915 synchronized (this) { 4916 if (who == null) { 4917 throw new NullPointerException("ComponentName is null"); 4918 } 4919 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4920 4921 long id = Binder.clearCallingIdentity(); 4922 try { 4923 IPackageManager pm = AppGlobals.getPackageManager(); 4924 return pm.setApplicationHiddenSettingAsUser(packageName, hidden, callingUserId); 4925 } catch (RemoteException re) { 4926 // shouldn't happen 4927 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 4928 } finally { 4929 restoreCallingIdentity(id); 4930 } 4931 return false; 4932 } 4933 } 4934 4935 @Override 4936 public boolean isApplicationHidden(ComponentName who, String packageName) { 4937 int callingUserId = UserHandle.getCallingUserId(); 4938 synchronized (this) { 4939 if (who == null) { 4940 throw new NullPointerException("ComponentName is null"); 4941 } 4942 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4943 4944 long id = Binder.clearCallingIdentity(); 4945 try { 4946 IPackageManager pm = AppGlobals.getPackageManager(); 4947 return pm.getApplicationHiddenSettingAsUser(packageName, callingUserId); 4948 } catch (RemoteException re) { 4949 // shouldn't happen 4950 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 4951 } finally { 4952 restoreCallingIdentity(id); 4953 } 4954 return false; 4955 } 4956 } 4957 4958 @Override 4959 public void enableSystemApp(ComponentName who, String packageName) { 4960 synchronized (this) { 4961 if (who == null) { 4962 throw new NullPointerException("ComponentName is null"); 4963 } 4964 4965 // This API can only be called by an active device admin, 4966 // so try to retrieve it to check that the caller is one. 4967 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4968 4969 int userId = UserHandle.getCallingUserId(); 4970 long id = Binder.clearCallingIdentity(); 4971 4972 try { 4973 if (DBG) { 4974 Slog.v(LOG_TAG, "installing " + packageName + " for " 4975 + userId); 4976 } 4977 4978 UserManager um = UserManager.get(mContext); 4979 UserInfo primaryUser = um.getProfileParent(userId); 4980 4981 // Call did not come from a managed profile 4982 if (primaryUser == null) { 4983 primaryUser = um.getUserInfo(userId); 4984 } 4985 4986 IPackageManager pm = AppGlobals.getPackageManager(); 4987 if (!isSystemApp(pm, packageName, primaryUser.id)) { 4988 throw new IllegalArgumentException("Only system apps can be enabled this way."); 4989 } 4990 4991 // Install the app. 4992 pm.installExistingPackageAsUser(packageName, userId); 4993 4994 } catch (RemoteException re) { 4995 // shouldn't happen 4996 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 4997 } finally { 4998 restoreCallingIdentity(id); 4999 } 5000 } 5001 } 5002 5003 @Override 5004 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 5005 synchronized (this) { 5006 if (who == null) { 5007 throw new NullPointerException("ComponentName is null"); 5008 } 5009 5010 // This API can only be called by an active device admin, 5011 // so try to retrieve it to check that the caller is one. 5012 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5013 5014 int userId = UserHandle.getCallingUserId(); 5015 long id = Binder.clearCallingIdentity(); 5016 5017 try { 5018 UserManager um = UserManager.get(mContext); 5019 UserInfo primaryUser = um.getProfileParent(userId); 5020 5021 // Call did not come from a managed profile. 5022 if (primaryUser == null) { 5023 primaryUser = um.getUserInfo(userId); 5024 } 5025 5026 IPackageManager pm = AppGlobals.getPackageManager(); 5027 List<ResolveInfo> activitiesToEnable = pm.queryIntentActivities(intent, 5028 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 5029 0, // no flags 5030 primaryUser.id); 5031 5032 if (DBG) Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 5033 int numberOfAppsInstalled = 0; 5034 if (activitiesToEnable != null) { 5035 for (ResolveInfo info : activitiesToEnable) { 5036 if (info.activityInfo != null) { 5037 5038 if (!isSystemApp(pm, info.activityInfo.packageName, primaryUser.id)) { 5039 throw new IllegalArgumentException( 5040 "Only system apps can be enabled this way."); 5041 } 5042 5043 5044 numberOfAppsInstalled++; 5045 pm.installExistingPackageAsUser(info.activityInfo.packageName, userId); 5046 } 5047 } 5048 } 5049 return numberOfAppsInstalled; 5050 } catch (RemoteException e) { 5051 // shouldn't happen 5052 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 5053 return 0; 5054 } finally { 5055 restoreCallingIdentity(id); 5056 } 5057 } 5058 } 5059 5060 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 5061 throws RemoteException { 5062 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 5063 userId); 5064 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) > 0; 5065 } 5066 5067 @Override 5068 public void setAccountManagementDisabled(ComponentName who, String accountType, 5069 boolean disabled) { 5070 if (!mHasFeature) { 5071 return; 5072 } 5073 synchronized (this) { 5074 if (who == null) { 5075 throw new NullPointerException("ComponentName is null"); 5076 } 5077 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5078 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5079 if (disabled) { 5080 ap.accountTypesWithManagementDisabled.add(accountType); 5081 } else { 5082 ap.accountTypesWithManagementDisabled.remove(accountType); 5083 } 5084 saveSettingsLocked(UserHandle.getCallingUserId()); 5085 } 5086 } 5087 5088 @Override 5089 public String[] getAccountTypesWithManagementDisabled() { 5090 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 5091 } 5092 5093 @Override 5094 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 5095 enforceCrossUserPermission(userId); 5096 if (!mHasFeature) { 5097 return null; 5098 } 5099 synchronized (this) { 5100 DevicePolicyData policy = getUserData(userId); 5101 final int N = policy.mAdminList.size(); 5102 HashSet<String> resultSet = new HashSet<String>(); 5103 for (int i = 0; i < N; i++) { 5104 ActiveAdmin admin = policy.mAdminList.get(i); 5105 resultSet.addAll(admin.accountTypesWithManagementDisabled); 5106 } 5107 return resultSet.toArray(new String[resultSet.size()]); 5108 } 5109 } 5110 5111 @Override 5112 public void setUninstallBlocked(ComponentName who, String packageName, 5113 boolean uninstallBlocked) { 5114 final int userId = UserHandle.getCallingUserId(); 5115 5116 synchronized (this) { 5117 if (who == null) { 5118 throw new NullPointerException("ComponentName is null"); 5119 } 5120 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5121 5122 long id = Binder.clearCallingIdentity(); 5123 try { 5124 IPackageManager pm = AppGlobals.getPackageManager(); 5125 pm.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 5126 } catch (RemoteException re) { 5127 // Shouldn't happen. 5128 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 5129 } finally { 5130 restoreCallingIdentity(id); 5131 } 5132 } 5133 } 5134 5135 @Override 5136 public boolean isUninstallBlocked(ComponentName who, String packageName) { 5137 // This function should return true if and only if the package is blocked by 5138 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 5139 // when the package is a system app, or when it is an active device admin. 5140 final int userId = UserHandle.getCallingUserId(); 5141 5142 synchronized (this) { 5143 if (who != null) { 5144 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5145 } 5146 5147 long id = Binder.clearCallingIdentity(); 5148 try { 5149 IPackageManager pm = AppGlobals.getPackageManager(); 5150 return pm.getBlockUninstallForUser(packageName, userId); 5151 } catch (RemoteException re) { 5152 // Shouldn't happen. 5153 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 5154 } finally { 5155 restoreCallingIdentity(id); 5156 } 5157 } 5158 return false; 5159 } 5160 5161 @Override 5162 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 5163 if (!mHasFeature) { 5164 return; 5165 } 5166 synchronized (this) { 5167 if (who == null) { 5168 throw new NullPointerException("ComponentName is null"); 5169 } 5170 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5171 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5172 if (admin.disableCallerId != disabled) { 5173 admin.disableCallerId = disabled; 5174 saveSettingsLocked(UserHandle.getCallingUserId()); 5175 } 5176 } 5177 } 5178 5179 @Override 5180 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 5181 if (!mHasFeature) { 5182 return false; 5183 } 5184 5185 synchronized (this) { 5186 if (who == null) { 5187 throw new NullPointerException("ComponentName is null"); 5188 } 5189 5190 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5191 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5192 return admin.disableCallerId; 5193 } 5194 } 5195 5196 @Override 5197 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 5198 // TODO: Should there be a check to make sure this relationship is within a profile group? 5199 //enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 5200 synchronized (this) { 5201 ActiveAdmin admin = getProfileOwnerAdmin(userId); 5202 return (admin != null) ? admin.disableCallerId : false; 5203 } 5204 } 5205 5206 /** 5207 * Sets which packages may enter lock task mode. 5208 * 5209 * This function can only be called by the device owner. 5210 * @param components The list of components allowed to enter lock task mode. 5211 */ 5212 public void setLockTaskPackages(ComponentName who, String[] packages) throws SecurityException { 5213 synchronized (this) { 5214 if (who == null) { 5215 throw new NullPointerException("ComponentName is null"); 5216 } 5217 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5218 5219 int userHandle = Binder.getCallingUserHandle().getIdentifier(); 5220 DevicePolicyData policy = getUserData(userHandle); 5221 policy.mLockTaskPackages.clear(); 5222 if (packages != null) { 5223 for (int j = 0; j < packages.length; j++) { 5224 String pkg = packages[j]; 5225 policy.mLockTaskPackages.add(pkg); 5226 } 5227 } 5228 5229 // Store the settings persistently. 5230 saveSettingsLocked(userHandle); 5231 } 5232 } 5233 5234 /** 5235 * This function returns the list of components allowed to start the task lock mode. 5236 */ 5237 public String[] getLockTaskPackages(ComponentName who) { 5238 synchronized (this) { 5239 if (who == null) { 5240 throw new NullPointerException("ComponentName is null"); 5241 } 5242 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5243 5244 int userHandle = Binder.getCallingUserHandle().getIdentifier(); 5245 DevicePolicyData policy = getUserData(userHandle); 5246 return policy.mLockTaskPackages.toArray(new String[0]); 5247 } 5248 } 5249 5250 /** 5251 * This function lets the caller know whether the given package is allowed to start the 5252 * lock task mode. 5253 * @param pkg The package to check 5254 */ 5255 public boolean isLockTaskPermitted(String pkg) { 5256 // Get current user's devicepolicy 5257 int uid = Binder.getCallingUid(); 5258 int userHandle = UserHandle.getUserId(uid); 5259 DevicePolicyData policy = getUserData(userHandle); 5260 synchronized (this) { 5261 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 5262 String lockTaskPackage = policy.mLockTaskPackages.get(i); 5263 5264 // If the given package equals one of the packages stored our list, 5265 // we allow this package to start lock task mode. 5266 if (lockTaskPackage.equals(pkg)) { 5267 return true; 5268 } 5269 } 5270 } 5271 return false; 5272 } 5273 5274 @Override 5275 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 5276 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 5277 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 5278 } 5279 synchronized (this) { 5280 final DevicePolicyData policy = getUserData(userHandle); 5281 Bundle adminExtras = new Bundle(); 5282 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 5283 for (ActiveAdmin admin : policy.mAdminList) { 5284 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 5285 boolean ownsProfile = (getProfileOwner(userHandle) != null 5286 && getProfileOwner(userHandle).equals(admin.info.getPackageName())); 5287 if (ownsDevice || ownsProfile) { 5288 if (isEnabled) { 5289 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 5290 adminExtras, null); 5291 } else { 5292 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 5293 } 5294 } 5295 } 5296 } 5297 } 5298 5299 @Override 5300 public void setGlobalSetting(ComponentName who, String setting, String value) { 5301 final ContentResolver contentResolver = mContext.getContentResolver(); 5302 5303 synchronized (this) { 5304 if (who == null) { 5305 throw new NullPointerException("ComponentName is null"); 5306 } 5307 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5308 5309 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 5310 throw new SecurityException(String.format( 5311 "Permission denial: device owners cannot update %1$s", setting)); 5312 } 5313 5314 long id = Binder.clearCallingIdentity(); 5315 try { 5316 Settings.Global.putString(contentResolver, setting, value); 5317 } finally { 5318 restoreCallingIdentity(id); 5319 } 5320 } 5321 } 5322 5323 @Override 5324 public void setSecureSetting(ComponentName who, String setting, String value) { 5325 int callingUserId = UserHandle.getCallingUserId(); 5326 final ContentResolver contentResolver = mContext.getContentResolver(); 5327 5328 synchronized (this) { 5329 if (who == null) { 5330 throw new NullPointerException("ComponentName is null"); 5331 } 5332 ActiveAdmin activeAdmin = 5333 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5334 5335 if (isDeviceOwner(activeAdmin.info.getPackageName())) { 5336 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 5337 throw new SecurityException(String.format( 5338 "Permission denial: Device owners cannot update %1$s", setting)); 5339 } 5340 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 5341 throw new SecurityException(String.format( 5342 "Permission denial: Profile owners cannot update %1$s", setting)); 5343 } 5344 5345 long id = Binder.clearCallingIdentity(); 5346 try { 5347 Settings.Secure.putStringForUser(contentResolver, setting, value, callingUserId); 5348 } finally { 5349 restoreCallingIdentity(id); 5350 } 5351 } 5352 } 5353 5354 @Override 5355 public void setMasterVolumeMuted(ComponentName who, boolean on) { 5356 final ContentResolver contentResolver = mContext.getContentResolver(); 5357 5358 synchronized (this) { 5359 if (who == null) { 5360 throw new NullPointerException("ComponentName is null"); 5361 } 5362 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5363 5364 IAudioService iAudioService = IAudioService.Stub.asInterface( 5365 ServiceManager.getService(Context.AUDIO_SERVICE)); 5366 try{ 5367 iAudioService.setMasterMute(on, 0, who.getPackageName(), null); 5368 } catch (RemoteException re) { 5369 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 5370 } 5371 } 5372 } 5373 5374 @Override 5375 public boolean isMasterVolumeMuted(ComponentName who) { 5376 final ContentResolver contentResolver = mContext.getContentResolver(); 5377 5378 synchronized (this) { 5379 if (who == null) { 5380 throw new NullPointerException("ComponentName is null"); 5381 } 5382 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5383 5384 AudioManager audioManager = 5385 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 5386 return audioManager.isMasterMute(); 5387 } 5388 } 5389 5390 /** 5391 * We need to update the internal state of whether a user has completed setup once. After 5392 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 5393 * as we don't trust any apps that might try to reset it. 5394 * <p> 5395 * Unfortunately, we don't know which user's setup state was changed, so we write all of 5396 * them. 5397 */ 5398 void updateUserSetupComplete() { 5399 List<UserInfo> users = mUserManager.getUsers(true); 5400 ContentResolver resolver = mContext.getContentResolver(); 5401 final int N = users.size(); 5402 for (int i = 0; i < N; i++) { 5403 int userHandle = users.get(i).id; 5404 if (Settings.Secure.getIntForUser(resolver, Settings.Secure.USER_SETUP_COMPLETE, 0, 5405 userHandle) != 0) { 5406 DevicePolicyData policy = getUserData(userHandle); 5407 if (!policy.mUserSetupComplete) { 5408 policy.mUserSetupComplete = true; 5409 synchronized (this) { 5410 saveSettingsLocked(userHandle); 5411 } 5412 } 5413 } 5414 } 5415 } 5416 5417 private class SetupContentObserver extends ContentObserver { 5418 5419 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 5420 Settings.Secure.USER_SETUP_COMPLETE); 5421 5422 public SetupContentObserver(Handler handler) { 5423 super(handler); 5424 } 5425 5426 void register(ContentResolver resolver) { 5427 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 5428 } 5429 5430 @Override 5431 public void onChange(boolean selfChange, Uri uri) { 5432 if (mUserSetupComplete.equals(uri)) { 5433 updateUserSetupComplete(); 5434 } 5435 } 5436 } 5437 5438 private final class LocalService extends DevicePolicyManagerInternal { 5439 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 5440 5441 @Override 5442 public List<String> getCrossProfileWidgetProviders(int profileId) { 5443 synchronized (DevicePolicyManagerService.this) { 5444 if (mDeviceOwner == null) { 5445 return Collections.emptyList(); 5446 } 5447 ComponentName ownerComponent = mDeviceOwner.getProfileOwnerComponent(profileId); 5448 if (ownerComponent == null) { 5449 return Collections.emptyList(); 5450 } 5451 5452 DevicePolicyData policy = getUserDataUnchecked(profileId); 5453 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 5454 5455 if (admin == null || admin.crossProfileWidgetProviders == null 5456 || admin.crossProfileWidgetProviders.isEmpty()) { 5457 return Collections.emptyList(); 5458 } 5459 5460 return admin.crossProfileWidgetProviders; 5461 } 5462 } 5463 5464 @Override 5465 public void addOnCrossProfileWidgetProvidersChangeListener( 5466 OnCrossProfileWidgetProvidersChangeListener listener) { 5467 synchronized (DevicePolicyManagerService.this) { 5468 if (mWidgetProviderListeners == null) { 5469 mWidgetProviderListeners = new ArrayList<>(); 5470 } 5471 if (!mWidgetProviderListeners.contains(listener)) { 5472 mWidgetProviderListeners.add(listener); 5473 } 5474 } 5475 } 5476 5477 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 5478 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 5479 synchronized (DevicePolicyManagerService.this) { 5480 listeners = new ArrayList<>(mWidgetProviderListeners); 5481 } 5482 final int listenerCount = listeners.size(); 5483 for (int i = 0; i < listenerCount; i++) { 5484 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 5485 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 5486 } 5487 } 5488 } 5489} 5490