DevicePolicyManagerService.java revision 735f22850edcb5c2447c37cb96f048de8a742907
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.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES; 21 22import android.accessibilityservice.AccessibilityServiceInfo; 23import android.accounts.AccountManager; 24import android.app.Activity; 25import android.app.ActivityManagerNative; 26import android.app.AlarmManager; 27import android.app.AppGlobals; 28import android.app.IActivityManager; 29import android.app.Notification; 30import android.app.NotificationManager; 31import android.app.PendingIntent; 32import android.app.admin.DeviceAdminInfo; 33import android.app.admin.DeviceAdminReceiver; 34import android.app.admin.DevicePolicyManager; 35import android.app.admin.DevicePolicyManagerInternal; 36import android.app.admin.IDevicePolicyManager; 37import android.content.BroadcastReceiver; 38import android.content.ComponentName; 39import android.content.ContentResolver; 40import android.content.Context; 41import android.content.Intent; 42import android.content.IntentFilter; 43import android.content.pm.ApplicationInfo; 44import android.content.pm.IPackageManager; 45import android.content.pm.PackageManager; 46import android.content.pm.PackageManager.NameNotFoundException; 47import android.content.pm.ResolveInfo; 48import android.content.pm.UserInfo; 49import android.database.ContentObserver; 50import android.hardware.usb.UsbManager; 51import android.media.AudioManager; 52import android.media.IAudioService; 53import android.net.ConnectivityManager; 54import android.net.ProxyInfo; 55import android.net.Uri; 56import android.os.AsyncTask; 57import android.os.Binder; 58import android.os.Bundle; 59import android.os.Environment; 60import android.os.Handler; 61import android.os.IBinder; 62import android.os.PersistableBundle; 63import android.os.PowerManager; 64import android.os.PowerManagerInternal; 65import android.os.Process; 66import android.os.RecoverySystem; 67import android.os.RemoteCallback; 68import android.os.RemoteException; 69import android.os.ServiceManager; 70import android.os.SystemClock; 71import android.os.SystemProperties; 72import android.os.UserHandle; 73import android.os.UserManager; 74import android.provider.Settings; 75import android.security.Credentials; 76import android.security.IKeyChainService; 77import android.security.KeyChain; 78import android.security.KeyChain.KeyChainConnection; 79import android.util.Log; 80import android.util.PrintWriterPrinter; 81import android.util.Printer; 82import android.util.Slog; 83import android.util.SparseArray; 84import android.util.Xml; 85import android.view.accessibility.AccessibilityManager; 86import android.view.accessibility.IAccessibilityManager; 87import android.view.inputmethod.InputMethodInfo; 88import android.view.inputmethod.InputMethodManager; 89import android.view.IWindowManager; 90 91import com.android.internal.R; 92import com.android.internal.os.storage.ExternalStorageFormatter; 93import com.android.internal.util.FastXmlSerializer; 94import com.android.internal.util.JournaledFile; 95import com.android.internal.util.XmlUtils; 96import com.android.internal.widget.LockPatternUtils; 97import com.android.org.conscrypt.TrustedCertificateStore; 98import com.android.server.LocalServices; 99import com.android.server.SystemService; 100import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 101 102import org.xmlpull.v1.XmlPullParser; 103 104import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 105import static org.xmlpull.v1.XmlPullParser.END_TAG; 106import static org.xmlpull.v1.XmlPullParser.TEXT; 107 108import org.xmlpull.v1.XmlPullParserException; 109import org.xmlpull.v1.XmlSerializer; 110 111import java.io.ByteArrayInputStream; 112import java.io.File; 113import java.io.FileDescriptor; 114import java.io.FileInputStream; 115import java.io.FileNotFoundException; 116import java.io.FileOutputStream; 117import java.io.IOException; 118import java.io.PrintWriter; 119import java.security.cert.CertificateEncodingException; 120import java.security.cert.CertificateException; 121import java.security.cert.CertificateFactory; 122import java.security.cert.X509Certificate; 123import java.text.DateFormat; 124import java.util.ArrayList; 125import java.util.Collections; 126import java.util.Date; 127import java.util.HashMap; 128import java.util.HashSet; 129import java.util.List; 130import java.util.Map.Entry; 131import java.util.Set; 132 133/** 134 * Implementation of the device policy APIs. 135 */ 136public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 137 138 private static final String LOG_TAG = "DevicePolicyManagerService"; 139 140 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 141 142 private static final String LOCK_TASK_COMPONENTS_XML = "lock-task-component"; 143 144 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 145 146 private static final long MS_PER_DAY = 86400 * 1000; 147 148 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 149 150 protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 151 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 152 153 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 154 155 private static final boolean DBG = false; 156 157 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 158 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 159 160 private static final Set<String> DEVICE_OWNER_USER_RESTRICTIONS; 161 static { 162 DEVICE_OWNER_USER_RESTRICTIONS = new HashSet(); 163 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_USB_FILE_TRANSFER); 164 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_TETHERING); 165 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_FACTORY_RESET); 166 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADD_USER); 167 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_CELL_BROADCASTS); 168 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS); 169 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_MOUNT_PHYSICAL_MEDIA); 170 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_UNMUTE_MICROPHONE); 171 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADJUST_VOLUME); 172 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SMS); 173 } 174 175 private static final Set<String> SECURE_SETTINGS_WHITELIST; 176 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 177 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 178 static { 179 SECURE_SETTINGS_WHITELIST = new HashSet(); 180 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 181 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 182 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 183 184 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new HashSet(); 185 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 186 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 187 188 GLOBAL_SETTINGS_WHITELIST = new HashSet(); 189 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 190 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 191 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 192 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.BLUETOOTH_ON); 193 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 194 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 195 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.MODE_RINGER); 196 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.NETWORK_PREFERENCE); 197 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 198 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_ON); 199 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 200 } 201 202 final Context mContext; 203 final UserManager mUserManager; 204 final PowerManager.WakeLock mWakeLock; 205 206 final LocalService mLocalService; 207 208 final PowerManager mPowerManager; 209 final PowerManagerInternal mPowerManagerInternal; 210 211 IWindowManager mIWindowManager; 212 NotificationManager mNotificationManager; 213 214 // Stores and loads state on device and profile owners. 215 private DeviceOwner mDeviceOwner; 216 217 /** 218 * Whether or not device admin feature is supported. If it isn't return defaults for all 219 * public methods. 220 */ 221 private boolean mHasFeature; 222 223 public static final class Lifecycle extends SystemService { 224 private DevicePolicyManagerService mService; 225 226 public Lifecycle(Context context) { 227 super(context); 228 mService = new DevicePolicyManagerService(context); 229 } 230 231 @Override 232 public void onStart() { 233 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 234 } 235 236 @Override 237 public void onBootPhase(int phase) { 238 if (phase == PHASE_LOCK_SETTINGS_READY) { 239 mService.systemReady(); 240 } 241 } 242 } 243 244 public static class DevicePolicyData { 245 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 246 int mActivePasswordLength = 0; 247 int mActivePasswordUpperCase = 0; 248 int mActivePasswordLowerCase = 0; 249 int mActivePasswordLetters = 0; 250 int mActivePasswordNumeric = 0; 251 int mActivePasswordSymbols = 0; 252 int mActivePasswordNonLetter = 0; 253 int mFailedPasswordAttempts = 0; 254 255 int mUserHandle; 256 int mPasswordOwner = -1; 257 long mLastMaximumTimeToLock = -1; 258 boolean mUserSetupComplete = false; 259 260 final HashMap<ComponentName, ActiveAdmin> mAdminMap 261 = new HashMap<ComponentName, ActiveAdmin>(); 262 final ArrayList<ActiveAdmin> mAdminList 263 = new ArrayList<ActiveAdmin>(); 264 265 // This is the list of component allowed to start lock task mode. 266 final List<String> mLockTaskPackages = new ArrayList<String>(); 267 268 ComponentName mRestrictionsProvider; 269 270 public DevicePolicyData(int userHandle) { 271 mUserHandle = userHandle; 272 } 273 } 274 275 final SparseArray<DevicePolicyData> mUserData = new SparseArray<DevicePolicyData>(); 276 277 Handler mHandler = new Handler(); 278 279 BroadcastReceiver mReceiver = new BroadcastReceiver() { 280 @Override 281 public void onReceive(Context context, Intent intent) { 282 final String action = intent.getAction(); 283 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 284 getSendingUserId()); 285 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 286 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 287 if (DBG) Slog.v(LOG_TAG, "Sending password expiration notifications for action " 288 + action + " for user " + userHandle); 289 mHandler.post(new Runnable() { 290 public void run() { 291 handlePasswordExpirationNotification(userHandle); 292 } 293 }); 294 } 295 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 296 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 297 new MonitoringCertNotificationTask().execute(intent); 298 } 299 if (Intent.ACTION_USER_REMOVED.equals(action)) { 300 removeUserData(userHandle); 301 } else if (Intent.ACTION_USER_STARTED.equals(action) 302 || Intent.ACTION_PACKAGE_CHANGED.equals(action) 303 || Intent.ACTION_PACKAGE_REMOVED.equals(action) 304 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 305 306 if (Intent.ACTION_USER_STARTED.equals(action)) { 307 // Reset the policy data 308 synchronized (DevicePolicyManagerService.this) { 309 mUserData.remove(userHandle); 310 } 311 } 312 313 handlePackagesChanged(userHandle); 314 } 315 } 316 }; 317 318 static class ActiveAdmin { 319 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 320 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 321 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 322 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 323 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 324 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 325 private static final String TAG_ACCOUNT_TYPE = "account-type"; 326 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 327 = "permitted-accessiblity-services"; 328 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 329 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 330 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 331 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 332 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 333 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 334 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 335 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 336 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 337 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 338 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 339 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 340 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 341 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 342 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 343 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 344 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 345 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 346 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 347 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 348 private static final String ATTR_VALUE = "value"; 349 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 350 private static final String TAG_POLICIES = "policies"; 351 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 352 "cross-profile-widget-providers"; 353 private static final String TAG_PROVIDER = "provider"; 354 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 355 356 final DeviceAdminInfo info; 357 358 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 359 360 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 361 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 362 363 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 364 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 365 366 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 367 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 368 369 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 370 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 371 372 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 373 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 374 375 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 376 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 377 378 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 379 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 380 381 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 382 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 383 384 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 385 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 386 387 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 388 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 389 390 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 391 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 392 393 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 394 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 395 396 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 397 398 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 399 400 boolean encryptionRequested = false; 401 boolean disableCamera = false; 402 boolean disableCallerId = false; 403 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 404 boolean requireAutoTime = false; // Can only be set by a device owner. 405 406 static class TrustAgentInfo { 407 public PersistableBundle options; 408 TrustAgentInfo(PersistableBundle bundle) { 409 options = bundle; 410 } 411 } 412 413 Set<String> accountTypesWithManagementDisabled = new HashSet<String>(); 414 415 // The list of permitted accessibility services package namesas set by a profile 416 // or device owner. Null means all accessibility services are allowed, empty means 417 // none except system services are allowed. 418 List<String> permittedAccessiblityServices; 419 420 // The list of permitted input methods package names as set by a profile or device owner. 421 // Null means all input methods are allowed, empty means none except system imes are 422 // allowed. 423 List<String> permittedInputMethods; 424 425 // TODO: review implementation decisions with frameworks team 426 boolean specifiesGlobalProxy = false; 427 String globalProxySpec = null; 428 String globalProxyExclusionList = null; 429 430 HashMap<String, TrustAgentInfo> trustAgentInfos = new HashMap<String, TrustAgentInfo>(); 431 432 List<String> crossProfileWidgetProviders; 433 434 ActiveAdmin(DeviceAdminInfo _info) { 435 info = _info; 436 } 437 438 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 439 440 public UserHandle getUserHandle() { 441 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 442 } 443 444 void writeToXml(XmlSerializer out) 445 throws IllegalArgumentException, IllegalStateException, IOException { 446 out.startTag(null, TAG_POLICIES); 447 info.writePoliciesToXml(out); 448 out.endTag(null, TAG_POLICIES); 449 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 450 out.startTag(null, TAG_PASSWORD_QUALITY); 451 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 452 out.endTag(null, TAG_PASSWORD_QUALITY); 453 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 454 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 455 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 456 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 457 } 458 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 459 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 460 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 461 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 462 } 463 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 464 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 465 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 466 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 467 } 468 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 469 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 470 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 471 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 472 } 473 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 474 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 475 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 476 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 477 } 478 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 479 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 480 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 481 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 482 } 483 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 484 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 485 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 486 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 487 } 488 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 489 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 490 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 491 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 492 } 493 } 494 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 495 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 496 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 497 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 498 } 499 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 500 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 501 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 502 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 503 } 504 if (specifiesGlobalProxy) { 505 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 506 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 507 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 508 if (globalProxySpec != null) { 509 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 510 out.attribute(null, ATTR_VALUE, globalProxySpec); 511 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 512 } 513 if (globalProxyExclusionList != null) { 514 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 515 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 516 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 517 } 518 } 519 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 520 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 521 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 522 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 523 } 524 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 525 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 526 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 527 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 528 } 529 if (encryptionRequested) { 530 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 531 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 532 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 533 } 534 if (disableCamera) { 535 out.startTag(null, TAG_DISABLE_CAMERA); 536 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 537 out.endTag(null, TAG_DISABLE_CAMERA); 538 } 539 if (disableCallerId) { 540 out.startTag(null, TAG_DISABLE_CALLER_ID); 541 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 542 out.endTag(null, TAG_DISABLE_CALLER_ID); 543 } 544 if (disableScreenCapture) { 545 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 546 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 547 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 548 } 549 if (requireAutoTime) { 550 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 551 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 552 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 553 } 554 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 555 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 556 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 557 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 558 } 559 if (!accountTypesWithManagementDisabled.isEmpty()) { 560 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 561 for (String ac : accountTypesWithManagementDisabled) { 562 out.startTag(null, TAG_ACCOUNT_TYPE); 563 out.attribute(null, ATTR_VALUE, ac); 564 out.endTag(null, TAG_ACCOUNT_TYPE); 565 } 566 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 567 } 568 if (!trustAgentInfos.isEmpty()) { 569 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 570 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 571 for (Entry<String, TrustAgentInfo> entry : set) { 572 TrustAgentInfo trustAgentInfo = entry.getValue(); 573 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 574 out.attribute(null, ATTR_VALUE, entry.getKey()); 575 if (trustAgentInfo.options != null) { 576 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 577 try { 578 trustAgentInfo.options.saveToXml(out); 579 } catch (XmlPullParserException e) { 580 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 581 } 582 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 583 } 584 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 585 } 586 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 587 } 588 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 589 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 590 final int providerCount = crossProfileWidgetProviders.size(); 591 for (int i = 0; i < providerCount; i++) { 592 String provider = crossProfileWidgetProviders.get(i); 593 out.startTag(null, TAG_PROVIDER); 594 out.attribute(null, ATTR_VALUE, provider); 595 out.endTag(null, TAG_PROVIDER); 596 } 597 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 598 } 599 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 600 permittedAccessiblityServices); 601 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 602 } 603 604 void writePackageListToXml(XmlSerializer out, String outerTag, 605 List<String> packageList) 606 throws IllegalArgumentException, IllegalStateException, IOException { 607 if (packageList == null) { 608 return; 609 } 610 611 out.startTag(null, outerTag); 612 for (String packageName : packageList) { 613 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 614 out.attribute(null, ATTR_VALUE, packageName); 615 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 616 } 617 out.endTag(null, outerTag); 618 } 619 620 void readFromXml(XmlPullParser parser) 621 throws XmlPullParserException, IOException { 622 int outerDepth = parser.getDepth(); 623 int type; 624 while ((type=parser.next()) != END_DOCUMENT 625 && (type != END_TAG || parser.getDepth() > outerDepth)) { 626 if (type == END_TAG || type == TEXT) { 627 continue; 628 } 629 String tag = parser.getName(); 630 if (TAG_POLICIES.equals(tag)) { 631 info.readPoliciesFromXml(parser); 632 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 633 passwordQuality = Integer.parseInt( 634 parser.getAttributeValue(null, ATTR_VALUE)); 635 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 636 minimumPasswordLength = Integer.parseInt( 637 parser.getAttributeValue(null, ATTR_VALUE)); 638 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 639 passwordHistoryLength = Integer.parseInt( 640 parser.getAttributeValue(null, ATTR_VALUE)); 641 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 642 minimumPasswordUpperCase = Integer.parseInt( 643 parser.getAttributeValue(null, ATTR_VALUE)); 644 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 645 minimumPasswordLowerCase = Integer.parseInt( 646 parser.getAttributeValue(null, ATTR_VALUE)); 647 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 648 minimumPasswordLetters = Integer.parseInt( 649 parser.getAttributeValue(null, ATTR_VALUE)); 650 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 651 minimumPasswordNumeric = Integer.parseInt( 652 parser.getAttributeValue(null, ATTR_VALUE)); 653 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 654 minimumPasswordSymbols = Integer.parseInt( 655 parser.getAttributeValue(null, ATTR_VALUE)); 656 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 657 minimumPasswordNonLetter = Integer.parseInt( 658 parser.getAttributeValue(null, ATTR_VALUE)); 659 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 660 maximumTimeToUnlock = Long.parseLong( 661 parser.getAttributeValue(null, ATTR_VALUE)); 662 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 663 maximumFailedPasswordsForWipe = Integer.parseInt( 664 parser.getAttributeValue(null, ATTR_VALUE)); 665 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 666 specifiesGlobalProxy = Boolean.parseBoolean( 667 parser.getAttributeValue(null, ATTR_VALUE)); 668 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 669 globalProxySpec = 670 parser.getAttributeValue(null, ATTR_VALUE); 671 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 672 globalProxyExclusionList = 673 parser.getAttributeValue(null, ATTR_VALUE); 674 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 675 passwordExpirationTimeout = Long.parseLong( 676 parser.getAttributeValue(null, ATTR_VALUE)); 677 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 678 passwordExpirationDate = Long.parseLong( 679 parser.getAttributeValue(null, ATTR_VALUE)); 680 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 681 encryptionRequested = Boolean.parseBoolean( 682 parser.getAttributeValue(null, ATTR_VALUE)); 683 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 684 disableCamera = Boolean.parseBoolean( 685 parser.getAttributeValue(null, ATTR_VALUE)); 686 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 687 disableCallerId = Boolean.parseBoolean( 688 parser.getAttributeValue(null, ATTR_VALUE)); 689 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 690 disableScreenCapture = Boolean.parseBoolean( 691 parser.getAttributeValue(null, ATTR_VALUE)); 692 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 693 requireAutoTime= Boolean.parseBoolean( 694 parser.getAttributeValue(null, ATTR_VALUE)); 695 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 696 disabledKeyguardFeatures = Integer.parseInt( 697 parser.getAttributeValue(null, ATTR_VALUE)); 698 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 699 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 700 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 701 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 702 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 703 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 704 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 705 permittedAccessiblityServices = readPackageList(parser, tag); 706 } else if (TAG_PERMITTED_IMES.equals(tag)) { 707 permittedInputMethods = readPackageList(parser, tag); 708 } else { 709 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 710 } 711 XmlUtils.skipCurrentTag(parser); 712 } 713 } 714 715 private List<String> readPackageList(XmlPullParser parser, 716 String tag) throws XmlPullParserException, IOException { 717 List<String> result = new ArrayList<String>(); 718 int outerDepth = parser.getDepth(); 719 int outerType; 720 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 721 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 722 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 723 continue; 724 } 725 String outerTag = parser.getName(); 726 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 727 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 728 if (packageName != null) { 729 result.add(packageName); 730 } else { 731 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 732 } 733 } else { 734 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 735 } 736 } 737 return result; 738 } 739 740 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 741 throws XmlPullParserException, IOException { 742 int outerDepthDAM = parser.getDepth(); 743 int typeDAM; 744 Set<String> result = new HashSet<String>(); 745 while ((typeDAM=parser.next()) != END_DOCUMENT 746 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 747 if (typeDAM == END_TAG || typeDAM == TEXT) { 748 continue; 749 } 750 String tagDAM = parser.getName(); 751 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 752 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 753 } else { 754 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 755 } 756 } 757 return result; 758 } 759 760 private HashMap<String, TrustAgentInfo> getAllTrustAgentInfos( 761 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 762 int outerDepthDAM = parser.getDepth(); 763 int typeDAM; 764 HashMap<String, TrustAgentInfo> result = new HashMap<String, TrustAgentInfo>(); 765 while ((typeDAM=parser.next()) != END_DOCUMENT 766 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 767 if (typeDAM == END_TAG || typeDAM == TEXT) { 768 continue; 769 } 770 String tagDAM = parser.getName(); 771 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 772 final String component = parser.getAttributeValue(null, ATTR_VALUE); 773 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 774 result.put(component, trustAgentInfo); 775 } else { 776 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 777 } 778 } 779 return result; 780 } 781 782 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 783 throws XmlPullParserException, IOException { 784 int outerDepthDAM = parser.getDepth(); 785 int typeDAM; 786 TrustAgentInfo result = new TrustAgentInfo(null); 787 while ((typeDAM=parser.next()) != END_DOCUMENT 788 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 789 if (typeDAM == END_TAG || typeDAM == TEXT) { 790 continue; 791 } 792 String tagDAM = parser.getName(); 793 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 794 PersistableBundle bundle = new PersistableBundle(); 795 bundle.restoreFromXml(parser); 796 result.options = bundle; 797 } else { 798 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 799 } 800 } 801 return result; 802 } 803 804 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 805 throws XmlPullParserException, IOException { 806 int outerDepthDAM = parser.getDepth(); 807 int typeDAM; 808 ArrayList<String> result = null; 809 while ((typeDAM=parser.next()) != END_DOCUMENT 810 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 811 if (typeDAM == END_TAG || typeDAM == TEXT) { 812 continue; 813 } 814 String tagDAM = parser.getName(); 815 if (TAG_PROVIDER.equals(tagDAM)) { 816 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 817 if (result == null) { 818 result = new ArrayList<>(); 819 } 820 result.add(provider); 821 } else { 822 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 823 } 824 } 825 return result; 826 } 827 828 void dump(String prefix, PrintWriter pw) { 829 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 830 pw.print(prefix); pw.println("policies:"); 831 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 832 if (pols != null) { 833 for (int i=0; i<pols.size(); i++) { 834 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 835 } 836 } 837 pw.print(prefix); pw.print("passwordQuality=0x"); 838 pw.println(Integer.toHexString(passwordQuality)); 839 pw.print(prefix); pw.print("minimumPasswordLength="); 840 pw.println(minimumPasswordLength); 841 pw.print(prefix); pw.print("passwordHistoryLength="); 842 pw.println(passwordHistoryLength); 843 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 844 pw.println(minimumPasswordUpperCase); 845 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 846 pw.println(minimumPasswordLowerCase); 847 pw.print(prefix); pw.print("minimumPasswordLetters="); 848 pw.println(minimumPasswordLetters); 849 pw.print(prefix); pw.print("minimumPasswordNumeric="); 850 pw.println(minimumPasswordNumeric); 851 pw.print(prefix); pw.print("minimumPasswordSymbols="); 852 pw.println(minimumPasswordSymbols); 853 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 854 pw.println(minimumPasswordNonLetter); 855 pw.print(prefix); pw.print("maximumTimeToUnlock="); 856 pw.println(maximumTimeToUnlock); 857 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 858 pw.println(maximumFailedPasswordsForWipe); 859 pw.print(prefix); pw.print("specifiesGlobalProxy="); 860 pw.println(specifiesGlobalProxy); 861 pw.print(prefix); pw.print("passwordExpirationTimeout="); 862 pw.println(passwordExpirationTimeout); 863 pw.print(prefix); pw.print("passwordExpirationDate="); 864 pw.println(passwordExpirationDate); 865 if (globalProxySpec != null) { 866 pw.print(prefix); pw.print("globalProxySpec="); 867 pw.println(globalProxySpec); 868 } 869 if (globalProxyExclusionList != null) { 870 pw.print(prefix); pw.print("globalProxyEclusionList="); 871 pw.println(globalProxyExclusionList); 872 } 873 pw.print(prefix); pw.print("encryptionRequested="); 874 pw.println(encryptionRequested); 875 pw.print(prefix); pw.print("disableCamera="); 876 pw.println(disableCamera); 877 pw.print(prefix); pw.print("disableCallerId="); 878 pw.println(disableCallerId); 879 pw.print(prefix); pw.print("disableScreenCapture="); 880 pw.println(disableScreenCapture); 881 pw.print(prefix); pw.print("requireAutoTime="); 882 pw.println(requireAutoTime); 883 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 884 pw.println(disabledKeyguardFeatures); 885 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 886 pw.println(crossProfileWidgetProviders); 887 if (!(permittedAccessiblityServices == null)) { 888 pw.print(prefix); pw.print("permittedAccessibilityServices="); 889 pw.println(permittedAccessiblityServices.toString()); 890 } 891 if (!(permittedInputMethods == null)) { 892 pw.print(prefix); pw.print("permittedInputMethods="); 893 pw.println(permittedInputMethods.toString()); 894 } 895 } 896 } 897 898 private void handlePackagesChanged(int userHandle) { 899 boolean removed = false; 900 if (DBG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 901 DevicePolicyData policy = getUserData(userHandle); 902 IPackageManager pm = AppGlobals.getPackageManager(); 903 synchronized (this) { 904 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 905 ActiveAdmin aa = policy.mAdminList.get(i); 906 try { 907 if (pm.getPackageInfo(aa.info.getPackageName(), 0, userHandle) == null 908 || pm.getReceiverInfo(aa.info.getComponent(), 0, userHandle) == null) { 909 removed = true; 910 policy.mAdminList.remove(i); 911 policy.mAdminMap.remove(aa.info.getComponent()); 912 } 913 } catch (RemoteException re) { 914 // Shouldn't happen 915 } 916 } 917 if (removed) { 918 validatePasswordOwnerLocked(policy); 919 syncDeviceCapabilitiesLocked(policy); 920 saveSettingsLocked(policy.mUserHandle); 921 } 922 } 923 } 924 925 /** 926 * Instantiates the service. 927 */ 928 public DevicePolicyManagerService(Context context) { 929 mContext = context; 930 mUserManager = UserManager.get(mContext); 931 mHasFeature = context.getPackageManager().hasSystemFeature( 932 PackageManager.FEATURE_DEVICE_ADMIN); 933 mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE); 934 mPowerManagerInternal = LocalServices.getService(PowerManagerInternal.class); 935 mWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "DPM"); 936 mLocalService = new LocalService(); 937 if (!mHasFeature) { 938 // Skip the rest of the initialization 939 return; 940 } 941 IntentFilter filter = new IntentFilter(); 942 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 943 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 944 filter.addAction(Intent.ACTION_USER_REMOVED); 945 filter.addAction(Intent.ACTION_USER_STARTED); 946 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 947 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 948 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 949 filter = new IntentFilter(); 950 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 951 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 952 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 953 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 954 filter.addDataScheme("package"); 955 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 956 957 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 958 } 959 960 /** 961 * Creates and loads the policy data from xml. 962 * @param userHandle the user for whom to load the policy data 963 * @return 964 */ 965 DevicePolicyData getUserData(int userHandle) { 966 synchronized (this) { 967 DevicePolicyData policy = mUserData.get(userHandle); 968 if (policy == null) { 969 policy = new DevicePolicyData(userHandle); 970 mUserData.append(userHandle, policy); 971 loadSettingsLocked(policy, userHandle); 972 } 973 return policy; 974 } 975 } 976 977 void removeUserData(int userHandle) { 978 synchronized (this) { 979 if (userHandle == UserHandle.USER_OWNER) { 980 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 981 return; 982 } 983 if (mDeviceOwner != null) { 984 mDeviceOwner.removeProfileOwner(userHandle); 985 mDeviceOwner.writeOwnerFile(); 986 } 987 988 DevicePolicyData policy = mUserData.get(userHandle); 989 if (policy != null) { 990 mUserData.remove(userHandle); 991 } 992 File policyFile = new File(Environment.getUserSystemDirectory(userHandle), 993 DEVICE_POLICIES_XML); 994 policyFile.delete(); 995 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 996 } 997 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 998 } 999 1000 void loadDeviceOwner() { 1001 synchronized (this) { 1002 mDeviceOwner = DeviceOwner.load(); 1003 } 1004 } 1005 1006 /** 1007 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1008 * reminders. Clears alarm if no expirations are configured. 1009 */ 1010 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1011 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1012 final long now = System.currentTimeMillis(); 1013 final long timeToExpire = expiration - now; 1014 final long alarmTime; 1015 if (expiration == 0) { 1016 // No expirations are currently configured: Cancel alarm. 1017 alarmTime = 0; 1018 } else if (timeToExpire <= 0) { 1019 // The password has already expired: Repeat every 24 hours. 1020 alarmTime = now + MS_PER_DAY; 1021 } else { 1022 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1023 // the expiration time. 1024 long alarmInterval = timeToExpire % MS_PER_DAY; 1025 if (alarmInterval == 0) { 1026 alarmInterval = MS_PER_DAY; 1027 } 1028 alarmTime = now + alarmInterval; 1029 } 1030 1031 long token = Binder.clearCallingIdentity(); 1032 try { 1033 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1034 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1035 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1036 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1037 new UserHandle(policy.mUserHandle)); 1038 am.cancel(pi); 1039 if (alarmTime != 0) { 1040 am.set(AlarmManager.RTC, alarmTime, pi); 1041 } 1042 } finally { 1043 Binder.restoreCallingIdentity(token); 1044 } 1045 } 1046 1047 private IWindowManager getWindowManager() { 1048 if (mIWindowManager == null) { 1049 IBinder b = ServiceManager.getService(Context.WINDOW_SERVICE); 1050 mIWindowManager = IWindowManager.Stub.asInterface(b); 1051 } 1052 return mIWindowManager; 1053 } 1054 1055 private NotificationManager getNotificationManager() { 1056 if (mNotificationManager == null) { 1057 mNotificationManager = 1058 (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE); 1059 } 1060 return mNotificationManager; 1061 } 1062 1063 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1064 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1065 if (admin != null 1066 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1067 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1068 return admin; 1069 } 1070 return null; 1071 } 1072 1073 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1074 throws SecurityException { 1075 final int callingUid = Binder.getCallingUid(); 1076 final int userHandle = UserHandle.getUserId(callingUid); 1077 final DevicePolicyData policy = getUserData(userHandle); 1078 1079 List<ActiveAdmin> candidates = new ArrayList<ActiveAdmin>(); 1080 1081 // Build a list of admins for this uid matching the given ComponentName 1082 if (who != null) { 1083 ActiveAdmin admin = policy.mAdminMap.get(who); 1084 if (admin == null) { 1085 throw new SecurityException("No active admin " + who); 1086 } 1087 if (admin.getUid() != callingUid) { 1088 throw new SecurityException("Admin " + who + " is not owned by uid " 1089 + Binder.getCallingUid()); 1090 } 1091 candidates.add(admin); 1092 } else { 1093 for (ActiveAdmin admin : policy.mAdminList) { 1094 if (admin.getUid() == callingUid) { 1095 candidates.add(admin); 1096 } 1097 } 1098 } 1099 1100 // Try to find an admin which can use reqPolicy 1101 for (ActiveAdmin admin : candidates) { 1102 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 1103 boolean ownsProfile = (getProfileOwner(userHandle) != null 1104 && getProfileOwner(userHandle).getPackageName() 1105 .equals(admin.info.getPackageName())); 1106 1107 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1108 if (ownsDevice) { 1109 return admin; 1110 } 1111 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1112 if (ownsDevice || ownsProfile) { 1113 return admin; 1114 } 1115 } else { 1116 if (admin.info.usesPolicy(reqPolicy)) { 1117 return admin; 1118 } 1119 } 1120 } 1121 1122 if (who != null) { 1123 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1124 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1125 + " does not own the device"); 1126 } 1127 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1128 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1129 + " does not own the profile"); 1130 } 1131 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1132 + " did not specify uses-policy for: " 1133 + candidates.get(0).info.getTagForPolicy(reqPolicy)); 1134 } else { 1135 throw new SecurityException("No active admin owned by uid " 1136 + Binder.getCallingUid() + " for policy #" + reqPolicy); 1137 } 1138 } 1139 1140 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1141 sendAdminCommandLocked(admin, action, null); 1142 } 1143 1144 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1145 sendAdminCommandLocked(admin, action, null, result); 1146 } 1147 1148 /** 1149 * Send an update to one specific admin, get notified when that admin returns a result. 1150 */ 1151 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1152 BroadcastReceiver result) { 1153 Intent intent = new Intent(action); 1154 intent.setComponent(admin.info.getComponent()); 1155 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1156 intent.putExtra("expiration", admin.passwordExpirationDate); 1157 } 1158 if (adminExtras != null) { 1159 intent.putExtras(adminExtras); 1160 } 1161 if (result != null) { 1162 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1163 null, result, mHandler, Activity.RESULT_OK, null, null); 1164 } else { 1165 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1166 } 1167 } 1168 1169 /** 1170 * Send an update to all admins of a user that enforce a specified policy. 1171 */ 1172 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1173 final DevicePolicyData policy = getUserData(userHandle); 1174 final int count = policy.mAdminList.size(); 1175 if (count > 0) { 1176 for (int i = 0; i < count; i++) { 1177 final ActiveAdmin admin = policy.mAdminList.get(i); 1178 if (admin.info.usesPolicy(reqPolicy)) { 1179 sendAdminCommandLocked(admin, action); 1180 } 1181 } 1182 } 1183 } 1184 1185 /** 1186 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1187 * enforce a specified policy. 1188 */ 1189 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1190 int userHandle) { 1191 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1192 for (UserInfo ui : profiles) { 1193 int id = ui.id; 1194 sendAdminCommandLocked(action, reqPolicy, id); 1195 } 1196 } 1197 1198 void removeActiveAdminLocked(final ComponentName adminReceiver, int userHandle) { 1199 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1200 if (admin != null) { 1201 sendAdminCommandLocked(admin, 1202 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1203 new BroadcastReceiver() { 1204 @Override 1205 public void onReceive(Context context, Intent intent) { 1206 synchronized (DevicePolicyManagerService.this) { 1207 int userHandle = admin.getUserHandle().getIdentifier(); 1208 DevicePolicyData policy = getUserData(userHandle); 1209 boolean doProxyCleanup = admin.info.usesPolicy( 1210 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1211 policy.mAdminList.remove(admin); 1212 policy.mAdminMap.remove(adminReceiver); 1213 validatePasswordOwnerLocked(policy); 1214 syncDeviceCapabilitiesLocked(policy); 1215 if (doProxyCleanup) { 1216 resetGlobalProxyLocked(getUserData(userHandle)); 1217 } 1218 saveSettingsLocked(userHandle); 1219 updateMaximumTimeToLockLocked(policy); 1220 } 1221 } 1222 }); 1223 } 1224 } 1225 1226 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) { 1227 if (!mHasFeature) { 1228 return null; 1229 } 1230 enforceCrossUserPermission(userHandle); 1231 Intent resolveIntent = new Intent(); 1232 resolveIntent.setComponent(adminName); 1233 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1234 resolveIntent, 1235 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1236 userHandle); 1237 if (infos == null || infos.size() <= 0) { 1238 throw new IllegalArgumentException("Unknown admin: " + adminName); 1239 } 1240 1241 try { 1242 return new DeviceAdminInfo(mContext, infos.get(0)); 1243 } catch (XmlPullParserException e) { 1244 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1245 e); 1246 return null; 1247 } catch (IOException e) { 1248 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1249 e); 1250 return null; 1251 } 1252 } 1253 1254 private static JournaledFile makeJournaledFile(int userHandle) { 1255 final String base = userHandle == 0 1256 ? "/data/system/" + DEVICE_POLICIES_XML 1257 : new File(Environment.getUserSystemDirectory(userHandle), DEVICE_POLICIES_XML) 1258 .getAbsolutePath(); 1259 return new JournaledFile(new File(base), new File(base + ".tmp")); 1260 } 1261 1262 private void saveSettingsLocked(int userHandle) { 1263 DevicePolicyData policy = getUserData(userHandle); 1264 JournaledFile journal = makeJournaledFile(userHandle); 1265 FileOutputStream stream = null; 1266 try { 1267 stream = new FileOutputStream(journal.chooseForWrite(), false); 1268 XmlSerializer out = new FastXmlSerializer(); 1269 out.setOutput(stream, "utf-8"); 1270 out.startDocument(null, true); 1271 1272 out.startTag(null, "policies"); 1273 if (policy.mRestrictionsProvider != null) { 1274 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1275 policy.mRestrictionsProvider.flattenToString()); 1276 } 1277 if (policy.mUserSetupComplete) { 1278 out.attribute(null, ATTR_SETUP_COMPLETE, 1279 Boolean.toString(true)); 1280 } 1281 1282 final int N = policy.mAdminList.size(); 1283 for (int i=0; i<N; i++) { 1284 ActiveAdmin ap = policy.mAdminList.get(i); 1285 if (ap != null) { 1286 out.startTag(null, "admin"); 1287 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1288 ap.writeToXml(out); 1289 out.endTag(null, "admin"); 1290 } 1291 } 1292 1293 if (policy.mPasswordOwner >= 0) { 1294 out.startTag(null, "password-owner"); 1295 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1296 out.endTag(null, "password-owner"); 1297 } 1298 1299 if (policy.mFailedPasswordAttempts != 0) { 1300 out.startTag(null, "failed-password-attempts"); 1301 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1302 out.endTag(null, "failed-password-attempts"); 1303 } 1304 1305 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1306 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1307 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1308 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1309 out.startTag(null, "active-password"); 1310 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1311 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1312 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1313 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1314 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1315 out.attribute(null, "numeric", Integer 1316 .toString(policy.mActivePasswordNumeric)); 1317 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1318 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1319 out.endTag(null, "active-password"); 1320 } 1321 1322 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1323 String component = policy.mLockTaskPackages.get(i); 1324 out.startTag(null, LOCK_TASK_COMPONENTS_XML); 1325 out.attribute(null, "name", component); 1326 out.endTag(null, LOCK_TASK_COMPONENTS_XML); 1327 } 1328 1329 out.endTag(null, "policies"); 1330 1331 out.endDocument(); 1332 stream.close(); 1333 journal.commit(); 1334 sendChangedNotification(userHandle); 1335 } catch (IOException e) { 1336 try { 1337 if (stream != null) { 1338 stream.close(); 1339 } 1340 } catch (IOException ex) { 1341 // Ignore 1342 } 1343 journal.rollback(); 1344 } 1345 } 1346 1347 private void sendChangedNotification(int userHandle) { 1348 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1349 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1350 long ident = Binder.clearCallingIdentity(); 1351 try { 1352 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1353 } finally { 1354 Binder.restoreCallingIdentity(ident); 1355 } 1356 } 1357 1358 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1359 JournaledFile journal = makeJournaledFile(userHandle); 1360 FileInputStream stream = null; 1361 File file = journal.chooseForRead(); 1362 try { 1363 stream = new FileInputStream(file); 1364 XmlPullParser parser = Xml.newPullParser(); 1365 parser.setInput(stream, null); 1366 1367 int type; 1368 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1369 && type != XmlPullParser.START_TAG) { 1370 } 1371 String tag = parser.getName(); 1372 if (!"policies".equals(tag)) { 1373 throw new XmlPullParserException( 1374 "Settings do not start with policies tag: found " + tag); 1375 } 1376 1377 // Extract the permission provider component name if available 1378 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1379 if (permissionProvider != null) { 1380 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1381 } 1382 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1383 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1384 policy.mUserSetupComplete = true; 1385 } 1386 1387 type = parser.next(); 1388 int outerDepth = parser.getDepth(); 1389 policy.mLockTaskPackages.clear(); 1390 policy.mAdminList.clear(); 1391 policy.mAdminMap.clear(); 1392 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1393 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1394 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1395 continue; 1396 } 1397 tag = parser.getName(); 1398 if ("admin".equals(tag)) { 1399 String name = parser.getAttributeValue(null, "name"); 1400 try { 1401 DeviceAdminInfo dai = findAdmin( 1402 ComponentName.unflattenFromString(name), userHandle); 1403 if (DBG && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1404 != userHandle)) { 1405 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1406 + dai.getActivityInfo().applicationInfo.uid + " for user " 1407 + userHandle); 1408 } 1409 if (dai != null) { 1410 ActiveAdmin ap = new ActiveAdmin(dai); 1411 ap.readFromXml(parser); 1412 policy.mAdminMap.put(ap.info.getComponent(), ap); 1413 } 1414 } catch (RuntimeException e) { 1415 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1416 } 1417 } else if ("failed-password-attempts".equals(tag)) { 1418 policy.mFailedPasswordAttempts = Integer.parseInt( 1419 parser.getAttributeValue(null, "value")); 1420 XmlUtils.skipCurrentTag(parser); 1421 } else if ("password-owner".equals(tag)) { 1422 policy.mPasswordOwner = Integer.parseInt( 1423 parser.getAttributeValue(null, "value")); 1424 XmlUtils.skipCurrentTag(parser); 1425 } else if ("active-password".equals(tag)) { 1426 policy.mActivePasswordQuality = Integer.parseInt( 1427 parser.getAttributeValue(null, "quality")); 1428 policy.mActivePasswordLength = Integer.parseInt( 1429 parser.getAttributeValue(null, "length")); 1430 policy.mActivePasswordUpperCase = Integer.parseInt( 1431 parser.getAttributeValue(null, "uppercase")); 1432 policy.mActivePasswordLowerCase = Integer.parseInt( 1433 parser.getAttributeValue(null, "lowercase")); 1434 policy.mActivePasswordLetters = Integer.parseInt( 1435 parser.getAttributeValue(null, "letters")); 1436 policy.mActivePasswordNumeric = Integer.parseInt( 1437 parser.getAttributeValue(null, "numeric")); 1438 policy.mActivePasswordSymbols = Integer.parseInt( 1439 parser.getAttributeValue(null, "symbols")); 1440 policy.mActivePasswordNonLetter = Integer.parseInt( 1441 parser.getAttributeValue(null, "nonletter")); 1442 XmlUtils.skipCurrentTag(parser); 1443 } else if (LOCK_TASK_COMPONENTS_XML.equals(tag)) { 1444 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 1445 XmlUtils.skipCurrentTag(parser); 1446 } else { 1447 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1448 XmlUtils.skipCurrentTag(parser); 1449 } 1450 } 1451 } catch (NullPointerException e) { 1452 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1453 } catch (NumberFormatException e) { 1454 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1455 } catch (XmlPullParserException e) { 1456 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1457 } catch (FileNotFoundException e) { 1458 // Don't be noisy, this is normal if we haven't defined any policies. 1459 } catch (IOException e) { 1460 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1461 } catch (IndexOutOfBoundsException e) { 1462 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1463 } 1464 try { 1465 if (stream != null) { 1466 stream.close(); 1467 } 1468 } catch (IOException e) { 1469 // Ignore 1470 } 1471 1472 // Generate a list of admins from the admin map 1473 policy.mAdminList.addAll(policy.mAdminMap.values()); 1474 1475 // Validate that what we stored for the password quality matches 1476 // sufficiently what is currently set. Note that this is only 1477 // a sanity check in case the two get out of sync; this should 1478 // never normally happen. 1479 LockPatternUtils utils = new LockPatternUtils(mContext); 1480 if (utils.getActivePasswordQuality() < policy.mActivePasswordQuality) { 1481 Slog.w(LOG_TAG, "Active password quality 0x" 1482 + Integer.toHexString(policy.mActivePasswordQuality) 1483 + " does not match actual quality 0x" 1484 + Integer.toHexString(utils.getActivePasswordQuality())); 1485 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1486 policy.mActivePasswordLength = 0; 1487 policy.mActivePasswordUpperCase = 0; 1488 policy.mActivePasswordLowerCase = 0; 1489 policy.mActivePasswordLetters = 0; 1490 policy.mActivePasswordNumeric = 0; 1491 policy.mActivePasswordSymbols = 0; 1492 policy.mActivePasswordNonLetter = 0; 1493 } 1494 1495 validatePasswordOwnerLocked(policy); 1496 syncDeviceCapabilitiesLocked(policy); 1497 updateMaximumTimeToLockLocked(policy); 1498 } 1499 1500 static void validateQualityConstant(int quality) { 1501 switch (quality) { 1502 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 1503 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 1504 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 1505 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 1506 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 1507 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 1508 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 1509 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 1510 return; 1511 } 1512 throw new IllegalArgumentException("Invalid quality constant: 0x" 1513 + Integer.toHexString(quality)); 1514 } 1515 1516 void validatePasswordOwnerLocked(DevicePolicyData policy) { 1517 if (policy.mPasswordOwner >= 0) { 1518 boolean haveOwner = false; 1519 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1520 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 1521 haveOwner = true; 1522 break; 1523 } 1524 } 1525 if (!haveOwner) { 1526 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 1527 + " no longer active; disabling"); 1528 policy.mPasswordOwner = -1; 1529 } 1530 } 1531 } 1532 1533 /** 1534 * Pushes down policy information to the system for any policies related to general device 1535 * capabilities that need to be enforced by lower level services (e.g. Camera services). 1536 */ 1537 void syncDeviceCapabilitiesLocked(DevicePolicyData policy) { 1538 // Ensure the status of the camera is synced down to the system. Interested native services 1539 // should monitor this value and act accordingly. 1540 boolean systemState = SystemProperties.getBoolean(SYSTEM_PROP_DISABLE_CAMERA, false); 1541 boolean cameraDisabled = getCameraDisabled(null, policy.mUserHandle); 1542 if (cameraDisabled != systemState) { 1543 long token = Binder.clearCallingIdentity(); 1544 try { 1545 String value = cameraDisabled ? "1" : "0"; 1546 if (DBG) Slog.v(LOG_TAG, "Change in camera state [" 1547 + SYSTEM_PROP_DISABLE_CAMERA + "] = " + value); 1548 SystemProperties.set(SYSTEM_PROP_DISABLE_CAMERA, value); 1549 } finally { 1550 Binder.restoreCallingIdentity(token); 1551 } 1552 } 1553 } 1554 1555 public void systemReady() { 1556 if (!mHasFeature) { 1557 return; 1558 } 1559 getUserData(UserHandle.USER_OWNER); 1560 loadDeviceOwner(); 1561 cleanUpOldUsers(); 1562 // Register an observer for watching for user setup complete. 1563 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 1564 // Initialize the user setup state, to handle the upgrade case. 1565 updateUserSetupComplete(); 1566 1567 // Update the screen capture disabled cache in the window manager 1568 List<UserInfo> users = mUserManager.getUsers(true); 1569 final int N = users.size(); 1570 for (int i = 0; i < N; i++) { 1571 int userHandle = users.get(i).id; 1572 updateScreenCaptureDisabledInWindowManager(userHandle, 1573 getScreenCaptureDisabled(null, userHandle)); 1574 } 1575 1576 } 1577 1578 private void cleanUpOldUsers() { 1579 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 1580 // before reboot 1581 Set<Integer> usersWithProfileOwners; 1582 Set<Integer> usersWithData; 1583 synchronized(this) { 1584 usersWithProfileOwners = mDeviceOwner != null 1585 ? mDeviceOwner.getProfileOwnerKeys() : new HashSet<Integer>(); 1586 usersWithData = new HashSet<Integer>(); 1587 for (int i = 0; i < mUserData.size(); i++) { 1588 usersWithData.add(mUserData.keyAt(i)); 1589 } 1590 } 1591 List<UserInfo> allUsers = mUserManager.getUsers(); 1592 1593 Set<Integer> deletedUsers = new HashSet<Integer>(); 1594 deletedUsers.addAll(usersWithProfileOwners); 1595 deletedUsers.addAll(usersWithData); 1596 for (UserInfo userInfo : allUsers) { 1597 deletedUsers.remove(userInfo.id); 1598 } 1599 for (Integer userId : deletedUsers) { 1600 removeUserData(userId); 1601 } 1602 } 1603 1604 private void handlePasswordExpirationNotification(int userHandle) { 1605 synchronized (this) { 1606 final long now = System.currentTimeMillis(); 1607 1608 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1609 for (UserInfo ui : profiles) { 1610 int profileUserHandle = ui.id; 1611 final DevicePolicyData policy = getUserData(profileUserHandle); 1612 final int count = policy.mAdminList.size(); 1613 if (count > 0) { 1614 for (int i = 0; i < count; i++) { 1615 final ActiveAdmin admin = policy.mAdminList.get(i); 1616 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 1617 && admin.passwordExpirationTimeout > 0L 1618 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 1619 && admin.passwordExpirationDate > 0L) { 1620 sendAdminCommandLocked(admin, 1621 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 1622 } 1623 } 1624 } 1625 } 1626 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 1627 } 1628 } 1629 1630 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 1631 @Override 1632 protected Void doInBackground(Intent... params) { 1633 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 1634 1635 if (userHandle == UserHandle.USER_ALL) { 1636 for (UserInfo userInfo : mUserManager.getUsers()) { 1637 manageNotification(userInfo.getUserHandle()); 1638 } 1639 } else { 1640 manageNotification(new UserHandle(userHandle)); 1641 } 1642 return null; 1643 } 1644 1645 private void manageNotification(UserHandle userHandle) { 1646 if (!mUserManager.isUserRunning(userHandle)) { 1647 return; 1648 } 1649 1650 boolean hasCert = false; 1651 final long id = Binder.clearCallingIdentity(); 1652 try { 1653 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 1654 try { 1655 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 1656 hasCert = true; 1657 } 1658 } catch (RemoteException e) { 1659 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 1660 } finally { 1661 kcs.close(); 1662 } 1663 } catch (InterruptedException e) { 1664 Thread.currentThread().interrupt(); 1665 } catch (RuntimeException e) { 1666 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 1667 } finally { 1668 Binder.restoreCallingIdentity(id); 1669 } 1670 if (!hasCert) { 1671 getNotificationManager().cancelAsUser( 1672 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 1673 return; 1674 } 1675 1676 int smallIconId; 1677 String contentText; 1678 final String ownerName = getDeviceOwnerName(); 1679 if (ownerName != null) { 1680 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 1681 smallIconId = R.drawable.stat_sys_certificate_info; 1682 } else { 1683 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 1684 smallIconId = android.R.drawable.stat_sys_warning; 1685 } 1686 1687 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 1688 dialogIntent.setFlags( 1689 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 1690 dialogIntent.setPackage("com.android.settings"); 1691 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 1692 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 1693 1694 final Context userContext; 1695 try { 1696 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 1697 } catch (PackageManager.NameNotFoundException e) { 1698 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 1699 return; 1700 } 1701 final Notification noti = new Notification.Builder(userContext) 1702 .setSmallIcon(smallIconId) 1703 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 1704 .setContentText(contentText) 1705 .setContentIntent(notifyIntent) 1706 .setPriority(Notification.PRIORITY_HIGH) 1707 .setShowWhen(false) 1708 .setColor(mContext.getResources().getColor( 1709 com.android.internal.R.color.system_notification_accent_color)) 1710 .build(); 1711 1712 getNotificationManager().notifyAsUser( 1713 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 1714 } 1715 } 1716 1717 /** 1718 * @param adminReceiver The admin to add 1719 * @param refreshing true = update an active admin, no error 1720 */ 1721 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 1722 if (!mHasFeature) { 1723 return; 1724 } 1725 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 1726 } 1727 1728 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 1729 Bundle onEnableData) { 1730 mContext.enforceCallingOrSelfPermission( 1731 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1732 enforceCrossUserPermission(userHandle); 1733 1734 DevicePolicyData policy = getUserData(userHandle); 1735 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle); 1736 if (info == null) { 1737 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 1738 } 1739 synchronized (this) { 1740 long ident = Binder.clearCallingIdentity(); 1741 try { 1742 if (!refreshing 1743 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 1744 throw new IllegalArgumentException("Admin is already added"); 1745 } 1746 ActiveAdmin newAdmin = new ActiveAdmin(info); 1747 policy.mAdminMap.put(adminReceiver, newAdmin); 1748 int replaceIndex = -1; 1749 final int N = policy.mAdminList.size(); 1750 for (int i=0; i < N; i++) { 1751 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 1752 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 1753 replaceIndex = i; 1754 break; 1755 } 1756 } 1757 if (replaceIndex == -1) { 1758 policy.mAdminList.add(newAdmin); 1759 enableIfNecessary(info.getPackageName(), userHandle); 1760 } else { 1761 policy.mAdminList.set(replaceIndex, newAdmin); 1762 } 1763 saveSettingsLocked(userHandle); 1764 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 1765 onEnableData, null); 1766 } finally { 1767 Binder.restoreCallingIdentity(ident); 1768 } 1769 } 1770 } 1771 1772 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 1773 if (!mHasFeature) { 1774 return false; 1775 } 1776 enforceCrossUserPermission(userHandle); 1777 synchronized (this) { 1778 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 1779 } 1780 } 1781 1782 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 1783 if (!mHasFeature) { 1784 return false; 1785 } 1786 enforceCrossUserPermission(userHandle); 1787 synchronized (this) { 1788 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1789 if (administrator == null) { 1790 throw new SecurityException("No active admin " + adminReceiver); 1791 } 1792 return administrator.info.usesPolicy(policyId); 1793 } 1794 } 1795 1796 @SuppressWarnings("unchecked") 1797 public List<ComponentName> getActiveAdmins(int userHandle) { 1798 if (!mHasFeature) { 1799 return Collections.EMPTY_LIST; 1800 } 1801 1802 enforceCrossUserPermission(userHandle); 1803 synchronized (this) { 1804 DevicePolicyData policy = getUserData(userHandle); 1805 final int N = policy.mAdminList.size(); 1806 if (N <= 0) { 1807 return null; 1808 } 1809 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 1810 for (int i=0; i<N; i++) { 1811 res.add(policy.mAdminList.get(i).info.getComponent()); 1812 } 1813 return res; 1814 } 1815 } 1816 1817 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 1818 if (!mHasFeature) { 1819 return false; 1820 } 1821 enforceCrossUserPermission(userHandle); 1822 synchronized (this) { 1823 DevicePolicyData policy = getUserData(userHandle); 1824 final int N = policy.mAdminList.size(); 1825 for (int i=0; i<N; i++) { 1826 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 1827 return true; 1828 } 1829 } 1830 return false; 1831 } 1832 } 1833 1834 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 1835 if (!mHasFeature) { 1836 return; 1837 } 1838 enforceCrossUserPermission(userHandle); 1839 synchronized (this) { 1840 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1841 if (admin == null) { 1842 return; 1843 } 1844 if (admin.getUid() != Binder.getCallingUid()) { 1845 // If trying to remove device owner, refuse when the caller is not the owner. 1846 if (isDeviceOwner(adminReceiver.getPackageName())) { 1847 return; 1848 } 1849 mContext.enforceCallingOrSelfPermission( 1850 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1851 } 1852 long ident = Binder.clearCallingIdentity(); 1853 try { 1854 removeActiveAdminLocked(adminReceiver, userHandle); 1855 } finally { 1856 Binder.restoreCallingIdentity(ident); 1857 } 1858 } 1859 } 1860 1861 public void setPasswordQuality(ComponentName who, int quality, int userHandle) { 1862 if (!mHasFeature) { 1863 return; 1864 } 1865 validateQualityConstant(quality); 1866 enforceCrossUserPermission(userHandle); 1867 1868 synchronized (this) { 1869 if (who == null) { 1870 throw new NullPointerException("ComponentName is null"); 1871 } 1872 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1873 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1874 if (ap.passwordQuality != quality) { 1875 ap.passwordQuality = quality; 1876 saveSettingsLocked(userHandle); 1877 } 1878 } 1879 } 1880 1881 public int getPasswordQuality(ComponentName who, int userHandle) { 1882 if (!mHasFeature) { 1883 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1884 } 1885 enforceCrossUserPermission(userHandle); 1886 synchronized (this) { 1887 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1888 1889 if (who != null) { 1890 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1891 return admin != null ? admin.passwordQuality : mode; 1892 } 1893 1894 // Return strictest policy for this user and profiles that are visible from this user. 1895 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1896 for (UserInfo userInfo : profiles) { 1897 DevicePolicyData policy = getUserData(userInfo.id); 1898 final int N = policy.mAdminList.size(); 1899 for (int i=0; i<N; i++) { 1900 ActiveAdmin admin = policy.mAdminList.get(i); 1901 if (mode < admin.passwordQuality) { 1902 mode = admin.passwordQuality; 1903 } 1904 } 1905 } 1906 return mode; 1907 } 1908 } 1909 1910 public void setPasswordMinimumLength(ComponentName who, int length, int userHandle) { 1911 if (!mHasFeature) { 1912 return; 1913 } 1914 enforceCrossUserPermission(userHandle); 1915 synchronized (this) { 1916 if (who == null) { 1917 throw new NullPointerException("ComponentName is null"); 1918 } 1919 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1920 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1921 if (ap.minimumPasswordLength != length) { 1922 ap.minimumPasswordLength = length; 1923 saveSettingsLocked(userHandle); 1924 } 1925 } 1926 } 1927 1928 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 1929 if (!mHasFeature) { 1930 return 0; 1931 } 1932 enforceCrossUserPermission(userHandle); 1933 synchronized (this) { 1934 int length = 0; 1935 1936 if (who != null) { 1937 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1938 return admin != null ? admin.minimumPasswordLength : length; 1939 } 1940 1941 // Return strictest policy for this user and profiles that are visible from this user. 1942 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1943 for (UserInfo userInfo : profiles) { 1944 DevicePolicyData policy = getUserData(userInfo.id); 1945 final int N = policy.mAdminList.size(); 1946 for (int i=0; i<N; i++) { 1947 ActiveAdmin admin = policy.mAdminList.get(i); 1948 if (length < admin.minimumPasswordLength) { 1949 length = admin.minimumPasswordLength; 1950 } 1951 } 1952 } 1953 return length; 1954 } 1955 } 1956 1957 public void setPasswordHistoryLength(ComponentName who, int length, int userHandle) { 1958 if (!mHasFeature) { 1959 return; 1960 } 1961 enforceCrossUserPermission(userHandle); 1962 synchronized (this) { 1963 if (who == null) { 1964 throw new NullPointerException("ComponentName is null"); 1965 } 1966 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1967 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1968 if (ap.passwordHistoryLength != length) { 1969 ap.passwordHistoryLength = length; 1970 saveSettingsLocked(userHandle); 1971 } 1972 } 1973 } 1974 1975 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 1976 if (!mHasFeature) { 1977 return 0; 1978 } 1979 enforceCrossUserPermission(userHandle); 1980 synchronized (this) { 1981 int length = 0; 1982 1983 if (who != null) { 1984 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1985 return admin != null ? admin.passwordHistoryLength : length; 1986 } 1987 1988 // Return strictest policy for this user and profiles that are visible from this user. 1989 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1990 for (UserInfo userInfo : profiles) { 1991 DevicePolicyData policy = getUserData(userInfo.id); 1992 final int N = policy.mAdminList.size(); 1993 for (int i = 0; i < N; i++) { 1994 ActiveAdmin admin = policy.mAdminList.get(i); 1995 if (length < admin.passwordHistoryLength) { 1996 length = admin.passwordHistoryLength; 1997 } 1998 } 1999 } 2000 return length; 2001 } 2002 } 2003 2004 public void setPasswordExpirationTimeout(ComponentName who, long timeout, int userHandle) { 2005 if (!mHasFeature) { 2006 return; 2007 } 2008 enforceCrossUserPermission(userHandle); 2009 synchronized (this) { 2010 if (who == null) { 2011 throw new NullPointerException("ComponentName is null"); 2012 } 2013 if (timeout < 0) { 2014 throw new IllegalArgumentException("Timeout must be >= 0 ms"); 2015 } 2016 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2017 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2018 // Calling this API automatically bumps the expiration date 2019 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2020 ap.passwordExpirationDate = expiration; 2021 ap.passwordExpirationTimeout = timeout; 2022 if (timeout > 0L) { 2023 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2024 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2025 .format(new Date(expiration))); 2026 } 2027 saveSettingsLocked(userHandle); 2028 // in case this is the first one 2029 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2030 } 2031 } 2032 2033 /** 2034 * Return a single admin's expiration cycle time, or the min of all cycle times. 2035 * Returns 0 if not configured. 2036 */ 2037 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2038 if (!mHasFeature) { 2039 return 0L; 2040 } 2041 enforceCrossUserPermission(userHandle); 2042 synchronized (this) { 2043 long timeout = 0L; 2044 2045 if (who != null) { 2046 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2047 return admin != null ? admin.passwordExpirationTimeout : timeout; 2048 } 2049 2050 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2051 for (UserInfo userInfo : profiles) { 2052 DevicePolicyData policy = getUserData(userInfo.id); 2053 final int N = policy.mAdminList.size(); 2054 for (int i = 0; i < N; i++) { 2055 ActiveAdmin admin = policy.mAdminList.get(i); 2056 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2057 && timeout > admin.passwordExpirationTimeout)) { 2058 timeout = admin.passwordExpirationTimeout; 2059 } 2060 } 2061 } 2062 return timeout; 2063 } 2064 } 2065 2066 @Override 2067 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2068 final int userId = UserHandle.getCallingUserId(); 2069 List<String> changedProviders = null; 2070 2071 synchronized (this) { 2072 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2073 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2074 if (activeAdmin.crossProfileWidgetProviders == null) { 2075 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2076 } 2077 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2078 if (!providers.contains(packageName)) { 2079 providers.add(packageName); 2080 changedProviders = new ArrayList<>(providers); 2081 saveSettingsLocked(userId); 2082 } 2083 } 2084 2085 if (changedProviders != null) { 2086 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2087 return true; 2088 } 2089 2090 return false; 2091 } 2092 2093 @Override 2094 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2095 final int userId = UserHandle.getCallingUserId(); 2096 List<String> changedProviders = null; 2097 2098 synchronized (this) { 2099 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2100 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2101 if (activeAdmin.crossProfileWidgetProviders == null) { 2102 return false; 2103 } 2104 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2105 if (providers.remove(packageName)) { 2106 changedProviders = new ArrayList<>(providers); 2107 saveSettingsLocked(userId); 2108 } 2109 } 2110 2111 if (changedProviders != null) { 2112 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2113 return true; 2114 } 2115 2116 return false; 2117 } 2118 2119 @Override 2120 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2121 synchronized (this) { 2122 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2123 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2124 if (activeAdmin.crossProfileWidgetProviders == null 2125 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2126 return null; 2127 } 2128 if (Binder.getCallingUid() == Process.myUid()) { 2129 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2130 } else { 2131 return activeAdmin.crossProfileWidgetProviders; 2132 } 2133 } 2134 } 2135 2136 /** 2137 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2138 * Returns 0 if not configured. 2139 */ 2140 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2141 long timeout = 0L; 2142 2143 if (who != null) { 2144 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2145 return admin != null ? admin.passwordExpirationDate : timeout; 2146 } 2147 2148 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2149 for (UserInfo userInfo : profiles) { 2150 DevicePolicyData policy = getUserData(userInfo.id); 2151 final int N = policy.mAdminList.size(); 2152 for (int i = 0; i < N; i++) { 2153 ActiveAdmin admin = policy.mAdminList.get(i); 2154 if (timeout == 0L || (admin.passwordExpirationDate != 0 2155 && timeout > admin.passwordExpirationDate)) { 2156 timeout = admin.passwordExpirationDate; 2157 } 2158 } 2159 } 2160 return timeout; 2161 } 2162 2163 public long getPasswordExpiration(ComponentName who, int userHandle) { 2164 if (!mHasFeature) { 2165 return 0L; 2166 } 2167 enforceCrossUserPermission(userHandle); 2168 synchronized (this) { 2169 return getPasswordExpirationLocked(who, userHandle); 2170 } 2171 } 2172 2173 public void setPasswordMinimumUpperCase(ComponentName who, int length, int userHandle) { 2174 if (!mHasFeature) { 2175 return; 2176 } 2177 enforceCrossUserPermission(userHandle); 2178 synchronized (this) { 2179 if (who == null) { 2180 throw new NullPointerException("ComponentName is null"); 2181 } 2182 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2183 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2184 if (ap.minimumPasswordUpperCase != length) { 2185 ap.minimumPasswordUpperCase = length; 2186 saveSettingsLocked(userHandle); 2187 } 2188 } 2189 } 2190 2191 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2192 if (!mHasFeature) { 2193 return 0; 2194 } 2195 enforceCrossUserPermission(userHandle); 2196 synchronized (this) { 2197 int length = 0; 2198 2199 if (who != null) { 2200 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2201 return admin != null ? admin.minimumPasswordUpperCase : length; 2202 } 2203 2204 // Return strictest policy for this user and profiles that are visible from this user. 2205 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2206 for (UserInfo userInfo : profiles) { 2207 DevicePolicyData policy = getUserData(userInfo.id); 2208 final int N = policy.mAdminList.size(); 2209 for (int i=0; i<N; i++) { 2210 ActiveAdmin admin = policy.mAdminList.get(i); 2211 if (length < admin.minimumPasswordUpperCase) { 2212 length = admin.minimumPasswordUpperCase; 2213 } 2214 } 2215 } 2216 return length; 2217 } 2218 } 2219 2220 public void setPasswordMinimumLowerCase(ComponentName who, int length, int userHandle) { 2221 enforceCrossUserPermission(userHandle); 2222 synchronized (this) { 2223 if (who == null) { 2224 throw new NullPointerException("ComponentName is null"); 2225 } 2226 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2227 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2228 if (ap.minimumPasswordLowerCase != length) { 2229 ap.minimumPasswordLowerCase = length; 2230 saveSettingsLocked(userHandle); 2231 } 2232 } 2233 } 2234 2235 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2236 if (!mHasFeature) { 2237 return 0; 2238 } 2239 enforceCrossUserPermission(userHandle); 2240 synchronized (this) { 2241 int length = 0; 2242 2243 if (who != null) { 2244 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2245 return admin != null ? admin.minimumPasswordLowerCase : length; 2246 } 2247 2248 // Return strictest policy for this user and profiles that are visible from this user. 2249 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2250 for (UserInfo userInfo : profiles) { 2251 DevicePolicyData policy = getUserData(userInfo.id); 2252 final int N = policy.mAdminList.size(); 2253 for (int i=0; i<N; i++) { 2254 ActiveAdmin admin = policy.mAdminList.get(i); 2255 if (length < admin.minimumPasswordLowerCase) { 2256 length = admin.minimumPasswordLowerCase; 2257 } 2258 } 2259 } 2260 return length; 2261 } 2262 } 2263 2264 public void setPasswordMinimumLetters(ComponentName who, int length, int userHandle) { 2265 if (!mHasFeature) { 2266 return; 2267 } 2268 enforceCrossUserPermission(userHandle); 2269 synchronized (this) { 2270 if (who == null) { 2271 throw new NullPointerException("ComponentName is null"); 2272 } 2273 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2274 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2275 if (ap.minimumPasswordLetters != length) { 2276 ap.minimumPasswordLetters = length; 2277 saveSettingsLocked(userHandle); 2278 } 2279 } 2280 } 2281 2282 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2283 if (!mHasFeature) { 2284 return 0; 2285 } 2286 enforceCrossUserPermission(userHandle); 2287 synchronized (this) { 2288 int length = 0; 2289 2290 if (who != null) { 2291 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2292 return admin != null ? admin.minimumPasswordLetters : length; 2293 } 2294 2295 // Return strictest policy for this user and profiles that are visible from this user. 2296 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2297 for (UserInfo userInfo : profiles) { 2298 DevicePolicyData policy = getUserData(userInfo.id); 2299 final int N = policy.mAdminList.size(); 2300 for (int i=0; i<N; i++) { 2301 ActiveAdmin admin = policy.mAdminList.get(i); 2302 if (length < admin.minimumPasswordLetters) { 2303 length = admin.minimumPasswordLetters; 2304 } 2305 } 2306 } 2307 return length; 2308 } 2309 } 2310 2311 public void setPasswordMinimumNumeric(ComponentName who, int length, int userHandle) { 2312 if (!mHasFeature) { 2313 return; 2314 } 2315 enforceCrossUserPermission(userHandle); 2316 synchronized (this) { 2317 if (who == null) { 2318 throw new NullPointerException("ComponentName is null"); 2319 } 2320 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2321 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2322 if (ap.minimumPasswordNumeric != length) { 2323 ap.minimumPasswordNumeric = length; 2324 saveSettingsLocked(userHandle); 2325 } 2326 } 2327 } 2328 2329 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2330 if (!mHasFeature) { 2331 return 0; 2332 } 2333 enforceCrossUserPermission(userHandle); 2334 synchronized (this) { 2335 int length = 0; 2336 2337 if (who != null) { 2338 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2339 return admin != null ? admin.minimumPasswordNumeric : length; 2340 } 2341 2342 // Return strictest policy for this user and profiles that are visible from this user. 2343 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2344 for (UserInfo userInfo : profiles) { 2345 DevicePolicyData policy = getUserData(userInfo.id); 2346 final int N = policy.mAdminList.size(); 2347 for (int i = 0; i < N; i++) { 2348 ActiveAdmin admin = policy.mAdminList.get(i); 2349 if (length < admin.minimumPasswordNumeric) { 2350 length = admin.minimumPasswordNumeric; 2351 } 2352 } 2353 } 2354 return length; 2355 } 2356 } 2357 2358 public void setPasswordMinimumSymbols(ComponentName who, int length, int userHandle) { 2359 if (!mHasFeature) { 2360 return; 2361 } 2362 enforceCrossUserPermission(userHandle); 2363 synchronized (this) { 2364 if (who == null) { 2365 throw new NullPointerException("ComponentName is null"); 2366 } 2367 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2368 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2369 if (ap.minimumPasswordSymbols != length) { 2370 ap.minimumPasswordSymbols = length; 2371 saveSettingsLocked(userHandle); 2372 } 2373 } 2374 } 2375 2376 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 2377 if (!mHasFeature) { 2378 return 0; 2379 } 2380 enforceCrossUserPermission(userHandle); 2381 synchronized (this) { 2382 int length = 0; 2383 2384 if (who != null) { 2385 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2386 return admin != null ? admin.minimumPasswordSymbols : length; 2387 } 2388 2389 // Return strictest policy for this user and profiles that are visible from this user. 2390 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2391 for (UserInfo userInfo : profiles) { 2392 DevicePolicyData policy = getUserData(userInfo.id); 2393 final int N = policy.mAdminList.size(); 2394 for (int i=0; i<N; i++) { 2395 ActiveAdmin admin = policy.mAdminList.get(i); 2396 if (length < admin.minimumPasswordSymbols) { 2397 length = admin.minimumPasswordSymbols; 2398 } 2399 } 2400 } 2401 return length; 2402 } 2403 } 2404 2405 public void setPasswordMinimumNonLetter(ComponentName who, int length, int userHandle) { 2406 if (!mHasFeature) { 2407 return; 2408 } 2409 enforceCrossUserPermission(userHandle); 2410 synchronized (this) { 2411 if (who == null) { 2412 throw new NullPointerException("ComponentName is null"); 2413 } 2414 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2415 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2416 if (ap.minimumPasswordNonLetter != length) { 2417 ap.minimumPasswordNonLetter = length; 2418 saveSettingsLocked(userHandle); 2419 } 2420 } 2421 } 2422 2423 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 2424 if (!mHasFeature) { 2425 return 0; 2426 } 2427 enforceCrossUserPermission(userHandle); 2428 synchronized (this) { 2429 int length = 0; 2430 2431 if (who != null) { 2432 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2433 return admin != null ? admin.minimumPasswordNonLetter : length; 2434 } 2435 2436 // Return strictest policy for this user and profiles that are visible from this user. 2437 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2438 for (UserInfo userInfo : profiles) { 2439 DevicePolicyData policy = getUserData(userInfo.id); 2440 final int N = policy.mAdminList.size(); 2441 for (int i=0; i<N; i++) { 2442 ActiveAdmin admin = policy.mAdminList.get(i); 2443 if (length < admin.minimumPasswordNonLetter) { 2444 length = admin.minimumPasswordNonLetter; 2445 } 2446 } 2447 } 2448 return length; 2449 } 2450 } 2451 2452 public boolean isActivePasswordSufficient(int userHandle) { 2453 if (!mHasFeature) { 2454 return true; 2455 } 2456 enforceCrossUserPermission(userHandle); 2457 2458 synchronized (this) { 2459 2460 // The active password is stored in the user that runs the launcher 2461 // If the user this is called from is part of a profile group, that is the parent 2462 // of the group. 2463 UserInfo parent = getProfileParent(userHandle); 2464 int id = parent == null ? userHandle : parent.id; 2465 DevicePolicyData policy = getUserData(id); 2466 2467 // This API can only be called by an active device admin, 2468 // so try to retrieve it to check that the caller is one. 2469 getActiveAdminForCallerLocked(null, 2470 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2471 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 2472 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 2473 return false; 2474 } 2475 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2476 return true; 2477 } 2478 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 2479 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 2480 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 2481 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 2482 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 2483 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 2484 } 2485 } 2486 2487 public int getCurrentFailedPasswordAttempts(int userHandle) { 2488 synchronized (this) { 2489 // This API can only be called by an active device admin, 2490 // so try to retrieve it to check that the caller is one. 2491 getActiveAdminForCallerLocked(null, 2492 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2493 2494 // The active password is stored in the parent. 2495 DevicePolicyData policy = getUserData(getProfileParent(userHandle).id); 2496 2497 return policy.mFailedPasswordAttempts; 2498 } 2499 } 2500 2501 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, int userHandle) { 2502 if (!mHasFeature) { 2503 return; 2504 } 2505 enforceCrossUserPermission(userHandle); 2506 synchronized (this) { 2507 if (who == null) { 2508 throw new NullPointerException("ComponentName is null"); 2509 } 2510 // This API can only be called by an active device admin, 2511 // so try to retrieve it to check that the caller is one. 2512 getActiveAdminForCallerLocked(who, 2513 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 2514 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2515 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2516 if (ap.maximumFailedPasswordsForWipe != num) { 2517 ap.maximumFailedPasswordsForWipe = num; 2518 saveSettingsLocked(userHandle); 2519 } 2520 } 2521 } 2522 2523 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 2524 if (!mHasFeature) { 2525 return 0; 2526 } 2527 enforceCrossUserPermission(userHandle); 2528 synchronized (this) { 2529 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 2530 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 2531 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 2532 } 2533 } 2534 2535 /** 2536 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 2537 * profiles that are visible from this user. If the policy for the primary and any other profile 2538 * are equal, it returns the admin for the primary profile. 2539 * Returns {@code null} if none of them have that policy set. 2540 */ 2541 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 2542 int count = 0; 2543 ActiveAdmin strictestAdmin = null; 2544 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 2545 DevicePolicyData policy = getUserData(userInfo.id); 2546 for (ActiveAdmin admin : policy.mAdminList) { 2547 if (admin.maximumFailedPasswordsForWipe == 2548 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 2549 continue; // No max number of failed passwords policy set for this profile. 2550 } 2551 2552 // We always favor the primary profile if several profiles have the same value set. 2553 if (count == 0 || 2554 count > admin.maximumFailedPasswordsForWipe || 2555 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 2556 count = admin.maximumFailedPasswordsForWipe; 2557 strictestAdmin = admin; 2558 } 2559 } 2560 } 2561 return strictestAdmin; 2562 } 2563 2564 public boolean resetPassword(String password, int flags, int userHandle) { 2565 if (!mHasFeature) { 2566 return false; 2567 } 2568 enforceCrossUserPermission(userHandle); 2569 enforceNotManagedProfile(userHandle, "reset the password"); 2570 2571 int quality; 2572 synchronized (this) { 2573 // This api can only be called by an active device admin, 2574 // so try to retrieve it to check that the caller is one. 2575 getActiveAdminForCallerLocked(null, 2576 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 2577 quality = getPasswordQuality(null, userHandle); 2578 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 2579 int realQuality = LockPatternUtils.computePasswordQuality(password); 2580 if (realQuality < quality 2581 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2582 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 2583 + Integer.toHexString(realQuality) 2584 + " does not meet required quality 0x" 2585 + Integer.toHexString(quality)); 2586 return false; 2587 } 2588 quality = Math.max(realQuality, quality); 2589 } 2590 int length = getPasswordMinimumLength(null, userHandle); 2591 if (password.length() < length) { 2592 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 2593 + " does not meet required length " + length); 2594 return false; 2595 } 2596 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2597 int letters = 0; 2598 int uppercase = 0; 2599 int lowercase = 0; 2600 int numbers = 0; 2601 int symbols = 0; 2602 int nonletter = 0; 2603 for (int i = 0; i < password.length(); i++) { 2604 char c = password.charAt(i); 2605 if (c >= 'A' && c <= 'Z') { 2606 letters++; 2607 uppercase++; 2608 } else if (c >= 'a' && c <= 'z') { 2609 letters++; 2610 lowercase++; 2611 } else if (c >= '0' && c <= '9') { 2612 numbers++; 2613 nonletter++; 2614 } else { 2615 symbols++; 2616 nonletter++; 2617 } 2618 } 2619 int neededLetters = getPasswordMinimumLetters(null, userHandle); 2620 if(letters < neededLetters) { 2621 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 2622 + " does not meet required number of letters " + neededLetters); 2623 return false; 2624 } 2625 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 2626 if (numbers < neededNumbers) { 2627 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 2628 + " does not meet required number of numerical digits " 2629 + neededNumbers); 2630 return false; 2631 } 2632 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 2633 if (lowercase < neededLowerCase) { 2634 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 2635 + " does not meet required number of lowercase letters " 2636 + neededLowerCase); 2637 return false; 2638 } 2639 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 2640 if (uppercase < neededUpperCase) { 2641 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 2642 + " does not meet required number of uppercase letters " 2643 + neededUpperCase); 2644 return false; 2645 } 2646 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 2647 if (symbols < neededSymbols) { 2648 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 2649 + " does not meet required number of special symbols " + neededSymbols); 2650 return false; 2651 } 2652 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 2653 if (nonletter < neededNonLetter) { 2654 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 2655 + " does not meet required number of non-letter characters " 2656 + neededNonLetter); 2657 return false; 2658 } 2659 } 2660 } 2661 2662 int callingUid = Binder.getCallingUid(); 2663 DevicePolicyData policy = getUserData(userHandle); 2664 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 2665 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 2666 return false; 2667 } 2668 2669 // Don't do this with the lock held, because it is going to call 2670 // back in to the service. 2671 long ident = Binder.clearCallingIdentity(); 2672 try { 2673 LockPatternUtils utils = new LockPatternUtils(mContext); 2674 utils.saveLockPassword(password, quality, false, userHandle); 2675 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 2676 if (requireEntry) { 2677 utils.requireCredentialEntry(UserHandle.USER_ALL); 2678 } 2679 synchronized (this) { 2680 int newOwner = requireEntry ? callingUid : -1; 2681 if (policy.mPasswordOwner != newOwner) { 2682 policy.mPasswordOwner = newOwner; 2683 saveSettingsLocked(userHandle); 2684 } 2685 } 2686 } finally { 2687 Binder.restoreCallingIdentity(ident); 2688 } 2689 2690 return true; 2691 } 2692 2693 public void setMaximumTimeToLock(ComponentName who, long timeMs, int userHandle) { 2694 if (!mHasFeature) { 2695 return; 2696 } 2697 enforceCrossUserPermission(userHandle); 2698 synchronized (this) { 2699 if (who == null) { 2700 throw new NullPointerException("ComponentName is null"); 2701 } 2702 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2703 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2704 if (ap.maximumTimeToUnlock != timeMs) { 2705 ap.maximumTimeToUnlock = timeMs; 2706 saveSettingsLocked(userHandle); 2707 updateMaximumTimeToLockLocked(getUserData(userHandle)); 2708 } 2709 } 2710 } 2711 2712 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 2713 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 2714 if (policy.mLastMaximumTimeToLock == timeMs) { 2715 return; 2716 } 2717 2718 long ident = Binder.clearCallingIdentity(); 2719 try { 2720 if (timeMs <= 0) { 2721 timeMs = Integer.MAX_VALUE; 2722 } else { 2723 // Make sure KEEP_SCREEN_ON is disabled, since that 2724 // would allow bypassing of the maximum time to lock. 2725 Settings.Global.putInt(mContext.getContentResolver(), 2726 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 2727 } 2728 2729 policy.mLastMaximumTimeToLock = timeMs; 2730 mPowerManagerInternal.setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 2731 } finally { 2732 Binder.restoreCallingIdentity(ident); 2733 } 2734 } 2735 2736 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 2737 if (!mHasFeature) { 2738 return 0; 2739 } 2740 enforceCrossUserPermission(userHandle); 2741 synchronized (this) { 2742 long time = 0; 2743 2744 if (who != null) { 2745 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2746 return admin != null ? admin.maximumTimeToUnlock : time; 2747 } 2748 2749 // Return strictest policy for this user and profiles that are visible from this user. 2750 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2751 for (UserInfo userInfo : profiles) { 2752 DevicePolicyData policy = getUserData(userInfo.id); 2753 final int N = policy.mAdminList.size(); 2754 for (int i=0; i<N; i++) { 2755 ActiveAdmin admin = policy.mAdminList.get(i); 2756 if (time == 0) { 2757 time = admin.maximumTimeToUnlock; 2758 } else if (admin.maximumTimeToUnlock != 0 2759 && time > admin.maximumTimeToUnlock) { 2760 time = admin.maximumTimeToUnlock; 2761 } 2762 } 2763 } 2764 return time; 2765 } 2766 } 2767 2768 public void lockNow() { 2769 if (!mHasFeature) { 2770 return; 2771 } 2772 synchronized (this) { 2773 // This API can only be called by an active device admin, 2774 // so try to retrieve it to check that the caller is one. 2775 getActiveAdminForCallerLocked(null, 2776 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2777 lockNowUnchecked(); 2778 } 2779 } 2780 2781 private void lockNowUnchecked() { 2782 long ident = Binder.clearCallingIdentity(); 2783 try { 2784 // Power off the display 2785 mPowerManager.goToSleep(SystemClock.uptimeMillis(), 2786 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 2787 // Ensure the device is locked 2788 new LockPatternUtils(mContext).requireCredentialEntry(UserHandle.USER_ALL); 2789 getWindowManager().lockNow(null); 2790 } catch (RemoteException e) { 2791 } finally { 2792 Binder.restoreCallingIdentity(ident); 2793 } 2794 } 2795 2796 private boolean isExtStorageEncrypted() { 2797 String state = SystemProperties.get("vold.decrypt"); 2798 return !"".equals(state); 2799 } 2800 2801 @Override 2802 public void enforceCanManageCaCerts(ComponentName who) { 2803 if (who == null) { 2804 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 2805 } else { 2806 synchronized (this) { 2807 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2808 } 2809 } 2810 } 2811 2812 @Override 2813 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 2814 enforceCanManageCaCerts(admin); 2815 2816 byte[] pemCert; 2817 try { 2818 X509Certificate cert = parseCert(certBuffer); 2819 pemCert = Credentials.convertToPem(cert); 2820 } catch (CertificateException ce) { 2821 Log.e(LOG_TAG, "Problem converting cert", ce); 2822 return false; 2823 } catch (IOException ioe) { 2824 Log.e(LOG_TAG, "Problem reading cert", ioe); 2825 return false; 2826 } 2827 2828 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2829 final long id = Binder.clearCallingIdentity(); 2830 try { 2831 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2832 try { 2833 keyChainConnection.getService().installCaCertificate(pemCert); 2834 return true; 2835 } catch (RemoteException e) { 2836 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 2837 } finally { 2838 keyChainConnection.close(); 2839 } 2840 } catch (InterruptedException e1) { 2841 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 2842 Thread.currentThread().interrupt(); 2843 } finally { 2844 Binder.restoreCallingIdentity(id); 2845 } 2846 return false; 2847 } 2848 2849 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 2850 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 2851 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 2852 certBuffer)); 2853 } 2854 2855 @Override 2856 public void uninstallCaCert(ComponentName admin, String alias) { 2857 enforceCanManageCaCerts(admin); 2858 2859 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2860 final long id = Binder.clearCallingIdentity(); 2861 try { 2862 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2863 try { 2864 keyChainConnection.getService().deleteCaCertificate(alias); 2865 } catch (RemoteException e) { 2866 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 2867 } finally { 2868 keyChainConnection.close(); 2869 } 2870 } catch (InterruptedException ie) { 2871 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 2872 Thread.currentThread().interrupt(); 2873 } finally { 2874 Binder.restoreCallingIdentity(id); 2875 } 2876 } 2877 2878 @Override 2879 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 2880 if (who == null) { 2881 throw new NullPointerException("ComponentName is null"); 2882 } 2883 synchronized (this) { 2884 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2885 } 2886 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2887 final long id = Binder.clearCallingIdentity(); 2888 try { 2889 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2890 try { 2891 IKeyChainService keyChain = keyChainConnection.getService(); 2892 return keyChain.installKeyPair(privKey, cert, alias); 2893 } catch (RemoteException e) { 2894 Log.e(LOG_TAG, "Installing certificate", e); 2895 } finally { 2896 keyChainConnection.close(); 2897 } 2898 } catch (InterruptedException e) { 2899 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 2900 Thread.currentThread().interrupt(); 2901 } finally { 2902 Binder.restoreCallingIdentity(id); 2903 } 2904 return false; 2905 } 2906 2907 void wipeDataLocked(int flags, String reason) { 2908 // If the SD card is encrypted and non-removable, we have to force a wipe. 2909 boolean forceExtWipe = !Environment.isExternalStorageRemovable() && isExtStorageEncrypted(); 2910 boolean wipeExtRequested = (flags&DevicePolicyManager.WIPE_EXTERNAL_STORAGE) != 0; 2911 2912 // Note: we can only do the wipe via ExternalStorageFormatter if the volume is not emulated. 2913 if ((forceExtWipe || wipeExtRequested) && !Environment.isExternalStorageEmulated()) { 2914 Intent intent = new Intent(ExternalStorageFormatter.FORMAT_AND_FACTORY_RESET); 2915 intent.putExtra(ExternalStorageFormatter.EXTRA_ALWAYS_RESET, true); 2916 intent.putExtra(Intent.EXTRA_REASON, reason); 2917 intent.setComponent(ExternalStorageFormatter.COMPONENT_NAME); 2918 mWakeLock.acquire(10000); 2919 mContext.startService(intent); 2920 } else { 2921 try { 2922 RecoverySystem.rebootWipeUserData(mContext, reason); 2923 } catch (IOException e) { 2924 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 2925 } catch (SecurityException e) { 2926 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 2927 } 2928 } 2929 } 2930 2931 @Override 2932 public void wipeData(int flags, final int userHandle) { 2933 if (!mHasFeature) { 2934 return; 2935 } 2936 enforceCrossUserPermission(userHandle); 2937 synchronized (this) { 2938 // This API can only be called by an active device admin, 2939 // so try to retrieve it to check that the caller is one. 2940 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 2941 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 2942 2943 final String source; 2944 if (admin != null && admin.info != null) { 2945 final ComponentName cname = admin.info.getComponent(); 2946 if (cname != null) { 2947 source = cname.flattenToShortString(); 2948 } else { 2949 source = admin.info.getPackageName(); 2950 } 2951 } else { 2952 source = "?"; 2953 } 2954 2955 long ident = Binder.clearCallingIdentity(); 2956 try { 2957 wipeDeviceOrUserLocked(flags, userHandle, 2958 "DevicePolicyManager.wipeData() from " + source); 2959 } finally { 2960 Binder.restoreCallingIdentity(ident); 2961 } 2962 } 2963 } 2964 2965 private void wipeDeviceOrUserLocked(int flags, final int userHandle, String reason) { 2966 if (userHandle == UserHandle.USER_OWNER) { 2967 wipeDataLocked(flags, reason); 2968 } else { 2969 mHandler.post(new Runnable() { 2970 public void run() { 2971 try { 2972 ActivityManagerNative.getDefault().switchUser(UserHandle.USER_OWNER); 2973 if (!mUserManager.removeUser(userHandle)) { 2974 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 2975 } 2976 } catch (RemoteException re) { 2977 // Shouldn't happen 2978 } 2979 } 2980 }); 2981 } 2982 } 2983 2984 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 2985 if (!mHasFeature) { 2986 return; 2987 } 2988 enforceCrossUserPermission(userHandle); 2989 mContext.enforceCallingOrSelfPermission( 2990 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 2991 2992 synchronized (this) { 2993 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 2994 if (admin == null) { 2995 try { 2996 result.sendResult(null); 2997 } catch (RemoteException e) { 2998 } 2999 return; 3000 } 3001 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3002 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3003 intent.setComponent(admin.info.getComponent()); 3004 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3005 null, new BroadcastReceiver() { 3006 @Override 3007 public void onReceive(Context context, Intent intent) { 3008 try { 3009 result.sendResult(getResultExtras(false)); 3010 } catch (RemoteException e) { 3011 } 3012 } 3013 }, null, Activity.RESULT_OK, null, null); 3014 } 3015 } 3016 3017 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3018 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3019 if (!mHasFeature) { 3020 return; 3021 } 3022 enforceCrossUserPermission(userHandle); 3023 enforceNotManagedProfile(userHandle, "set the active password"); 3024 3025 mContext.enforceCallingOrSelfPermission( 3026 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3027 DevicePolicyData p = getUserData(userHandle); 3028 3029 validateQualityConstant(quality); 3030 3031 synchronized (this) { 3032 if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length 3033 || p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters 3034 || p.mActivePasswordUpperCase != uppercase 3035 || p.mActivePasswordLowerCase != lowercase 3036 || p.mActivePasswordNumeric != numbers 3037 || p.mActivePasswordSymbols != symbols 3038 || p.mActivePasswordNonLetter != nonletter) { 3039 long ident = Binder.clearCallingIdentity(); 3040 try { 3041 p.mActivePasswordQuality = quality; 3042 p.mActivePasswordLength = length; 3043 p.mActivePasswordLetters = letters; 3044 p.mActivePasswordLowerCase = lowercase; 3045 p.mActivePasswordUpperCase = uppercase; 3046 p.mActivePasswordNumeric = numbers; 3047 p.mActivePasswordSymbols = symbols; 3048 p.mActivePasswordNonLetter = nonletter; 3049 p.mFailedPasswordAttempts = 0; 3050 saveSettingsLocked(userHandle); 3051 updatePasswordExpirationsLocked(userHandle); 3052 setExpirationAlarmCheckLocked(mContext, p); 3053 sendAdminCommandToSelfAndProfilesLocked( 3054 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3055 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3056 } finally { 3057 Binder.restoreCallingIdentity(ident); 3058 } 3059 } 3060 } 3061 } 3062 3063 /** 3064 * Called any time the device password is updated. Resets all password expiration clocks. 3065 */ 3066 private void updatePasswordExpirationsLocked(int userHandle) { 3067 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3068 for (UserInfo userInfo : profiles) { 3069 int profileId = userInfo.id; 3070 DevicePolicyData policy = getUserData(profileId); 3071 final int N = policy.mAdminList.size(); 3072 if (N > 0) { 3073 for (int i=0; i<N; i++) { 3074 ActiveAdmin admin = policy.mAdminList.get(i); 3075 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3076 long timeout = admin.passwordExpirationTimeout; 3077 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3078 admin.passwordExpirationDate = expiration; 3079 } 3080 } 3081 } 3082 saveSettingsLocked(profileId); 3083 } 3084 } 3085 3086 public void reportFailedPasswordAttempt(int userHandle) { 3087 enforceCrossUserPermission(userHandle); 3088 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3089 mContext.enforceCallingOrSelfPermission( 3090 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3091 3092 long ident = Binder.clearCallingIdentity(); 3093 try { 3094 boolean wipeData = false; 3095 int identifier = 0; 3096 synchronized (this) { 3097 DevicePolicyData policy = getUserData(userHandle); 3098 policy.mFailedPasswordAttempts++; 3099 saveSettingsLocked(userHandle); 3100 if (mHasFeature) { 3101 ActiveAdmin strictestAdmin = 3102 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3103 int max = strictestAdmin != null 3104 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3105 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 3106 // Wipe the user/profile associated with the policy that was violated. This 3107 // is not necessarily calling user: if the policy that fired was from a 3108 // managed profile rather than the main user profile, we wipe former only. 3109 wipeData = true; 3110 identifier = strictestAdmin.getUserHandle().getIdentifier(); 3111 } 3112 sendAdminCommandToSelfAndProfilesLocked( 3113 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 3114 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3115 } 3116 } 3117 if (wipeData) { 3118 // Call without holding lock. 3119 wipeDeviceOrUserLocked(0, identifier, "reportFailedPasswordAttempt()"); 3120 } 3121 } finally { 3122 Binder.restoreCallingIdentity(ident); 3123 } 3124 } 3125 3126 public void reportSuccessfulPasswordAttempt(int userHandle) { 3127 enforceCrossUserPermission(userHandle); 3128 mContext.enforceCallingOrSelfPermission( 3129 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3130 3131 synchronized (this) { 3132 DevicePolicyData policy = getUserData(userHandle); 3133 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 3134 long ident = Binder.clearCallingIdentity(); 3135 try { 3136 policy.mFailedPasswordAttempts = 0; 3137 policy.mPasswordOwner = -1; 3138 saveSettingsLocked(userHandle); 3139 if (mHasFeature) { 3140 sendAdminCommandToSelfAndProfilesLocked( 3141 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 3142 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3143 } 3144 } finally { 3145 Binder.restoreCallingIdentity(ident); 3146 } 3147 } 3148 } 3149 } 3150 3151 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 3152 String exclusionList, int userHandle) { 3153 if (!mHasFeature) { 3154 return null; 3155 } 3156 enforceCrossUserPermission(userHandle); 3157 synchronized(this) { 3158 if (who == null) { 3159 throw new NullPointerException("ComponentName is null"); 3160 } 3161 3162 // Only check if owner has set global proxy. We don't allow other users to set it. 3163 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3164 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3165 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 3166 3167 // Scan through active admins and find if anyone has already 3168 // set the global proxy. 3169 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 3170 for (ComponentName component : compSet) { 3171 ActiveAdmin ap = policy.mAdminMap.get(component); 3172 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 3173 // Another admin already sets the global proxy 3174 // Return it to the caller. 3175 return component; 3176 } 3177 } 3178 3179 // If the user is not the owner, don't set the global proxy. Fail silently. 3180 if (UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 3181 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 3182 + userHandle + " is not permitted."); 3183 return null; 3184 } 3185 if (proxySpec == null) { 3186 admin.specifiesGlobalProxy = false; 3187 admin.globalProxySpec = null; 3188 admin.globalProxyExclusionList = null; 3189 } else { 3190 3191 admin.specifiesGlobalProxy = true; 3192 admin.globalProxySpec = proxySpec; 3193 admin.globalProxyExclusionList = exclusionList; 3194 } 3195 3196 // Reset the global proxy accordingly 3197 // Do this using system permissions, as apps cannot write to secure settings 3198 long origId = Binder.clearCallingIdentity(); 3199 try { 3200 resetGlobalProxyLocked(policy); 3201 } finally { 3202 Binder.restoreCallingIdentity(origId); 3203 } 3204 return null; 3205 } 3206 } 3207 3208 public ComponentName getGlobalProxyAdmin(int userHandle) { 3209 if (!mHasFeature) { 3210 return null; 3211 } 3212 enforceCrossUserPermission(userHandle); 3213 synchronized(this) { 3214 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3215 // Scan through active admins and find if anyone has already 3216 // set the global proxy. 3217 final int N = policy.mAdminList.size(); 3218 for (int i = 0; i < N; i++) { 3219 ActiveAdmin ap = policy.mAdminList.get(i); 3220 if (ap.specifiesGlobalProxy) { 3221 // Device admin sets the global proxy 3222 // Return it to the caller. 3223 return ap.info.getComponent(); 3224 } 3225 } 3226 } 3227 // No device admin sets the global proxy. 3228 return null; 3229 } 3230 3231 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 3232 synchronized (this) { 3233 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3234 } 3235 long token = Binder.clearCallingIdentity(); 3236 try { 3237 ConnectivityManager connectivityManager = (ConnectivityManager) 3238 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 3239 connectivityManager.setGlobalProxy(proxyInfo); 3240 } finally { 3241 Binder.restoreCallingIdentity(token); 3242 } 3243 } 3244 3245 private void resetGlobalProxyLocked(DevicePolicyData policy) { 3246 final int N = policy.mAdminList.size(); 3247 for (int i = 0; i < N; i++) { 3248 ActiveAdmin ap = policy.mAdminList.get(i); 3249 if (ap.specifiesGlobalProxy) { 3250 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 3251 return; 3252 } 3253 } 3254 // No device admins defining global proxies - reset global proxy settings to none 3255 saveGlobalProxyLocked(null, null); 3256 } 3257 3258 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 3259 if (exclusionList == null) { 3260 exclusionList = ""; 3261 } 3262 if (proxySpec == null) { 3263 proxySpec = ""; 3264 } 3265 // Remove white spaces 3266 proxySpec = proxySpec.trim(); 3267 String data[] = proxySpec.split(":"); 3268 int proxyPort = 8080; 3269 if (data.length > 1) { 3270 try { 3271 proxyPort = Integer.parseInt(data[1]); 3272 } catch (NumberFormatException e) {} 3273 } 3274 exclusionList = exclusionList.trim(); 3275 ContentResolver res = mContext.getContentResolver(); 3276 3277 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 3278 if (!proxyProperties.isValid()) { 3279 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3280 return; 3281 } 3282 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 3283 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 3284 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 3285 exclusionList); 3286 } 3287 3288 /** 3289 * Set the storage encryption request for a single admin. Returns the new total request 3290 * status (for all admins). 3291 */ 3292 public int setStorageEncryption(ComponentName who, boolean encrypt, int userHandle) { 3293 if (!mHasFeature) { 3294 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3295 } 3296 enforceCrossUserPermission(userHandle); 3297 synchronized (this) { 3298 // Check for permissions 3299 if (who == null) { 3300 throw new NullPointerException("ComponentName is null"); 3301 } 3302 // Only owner can set storage encryption 3303 if (userHandle != UserHandle.USER_OWNER 3304 || UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 3305 Slog.w(LOG_TAG, "Only owner is allowed to set storage encryption. User " 3306 + UserHandle.getCallingUserId() + " is not permitted."); 3307 return 0; 3308 } 3309 3310 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3311 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 3312 3313 // Quick exit: If the filesystem does not support encryption, we can exit early. 3314 if (!isEncryptionSupported()) { 3315 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3316 } 3317 3318 // (1) Record the value for the admin so it's sticky 3319 if (ap.encryptionRequested != encrypt) { 3320 ap.encryptionRequested = encrypt; 3321 saveSettingsLocked(userHandle); 3322 } 3323 3324 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3325 // (2) Compute "max" for all admins 3326 boolean newRequested = false; 3327 final int N = policy.mAdminList.size(); 3328 for (int i = 0; i < N; i++) { 3329 newRequested |= policy.mAdminList.get(i).encryptionRequested; 3330 } 3331 3332 // Notify OS of new request 3333 setEncryptionRequested(newRequested); 3334 3335 // Return the new global request status 3336 return newRequested 3337 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3338 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3339 } 3340 } 3341 3342 /** 3343 * Get the current storage encryption request status for a given admin, or aggregate of all 3344 * active admins. 3345 */ 3346 public boolean getStorageEncryption(ComponentName who, int userHandle) { 3347 if (!mHasFeature) { 3348 return false; 3349 } 3350 enforceCrossUserPermission(userHandle); 3351 synchronized (this) { 3352 // Check for permissions if a particular caller is specified 3353 if (who != null) { 3354 // When checking for a single caller, status is based on caller's request 3355 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 3356 return ap != null ? ap.encryptionRequested : false; 3357 } 3358 3359 // If no particular caller is specified, return the aggregate set of requests. 3360 // This is short circuited by returning true on the first hit. 3361 DevicePolicyData policy = getUserData(userHandle); 3362 final int N = policy.mAdminList.size(); 3363 for (int i = 0; i < N; i++) { 3364 if (policy.mAdminList.get(i).encryptionRequested) { 3365 return true; 3366 } 3367 } 3368 return false; 3369 } 3370 } 3371 3372 /** 3373 * Get the current encryption status of the device. 3374 */ 3375 public int getStorageEncryptionStatus(int userHandle) { 3376 if (!mHasFeature) { 3377 // Ok to return current status. 3378 } 3379 enforceCrossUserPermission(userHandle); 3380 return getEncryptionStatus(); 3381 } 3382 3383 /** 3384 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 3385 */ 3386 private boolean isEncryptionSupported() { 3387 // Note, this can be implemented as 3388 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3389 // But is provided as a separate internal method if there's a faster way to do a 3390 // simple check for supported-or-not. 3391 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3392 } 3393 3394 /** 3395 * Hook to low-levels: Reporting the current status of encryption. 3396 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED} or 3397 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE} or 3398 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 3399 */ 3400 private int getEncryptionStatus() { 3401 String status = SystemProperties.get("ro.crypto.state", "unsupported"); 3402 if ("encrypted".equalsIgnoreCase(status)) { 3403 final long token = Binder.clearCallingIdentity(); 3404 try { 3405 return LockPatternUtils.isDeviceEncrypted() 3406 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3407 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3408 } finally { 3409 Binder.restoreCallingIdentity(token); 3410 } 3411 } else if ("unencrypted".equalsIgnoreCase(status)) { 3412 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3413 } else { 3414 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3415 } 3416 } 3417 3418 /** 3419 * Hook to low-levels: If needed, record the new admin setting for encryption. 3420 */ 3421 private void setEncryptionRequested(boolean encrypt) { 3422 } 3423 3424 3425 /** 3426 * Set whether the screen capture is disabled for the user managed by the specified admin. 3427 */ 3428 public void setScreenCaptureDisabled(ComponentName who, int userHandle, boolean disabled) { 3429 if (!mHasFeature) { 3430 return; 3431 } 3432 enforceCrossUserPermission(userHandle); 3433 synchronized (this) { 3434 if (who == null) { 3435 throw new NullPointerException("ComponentName is null"); 3436 } 3437 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3438 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3439 if (ap.disableScreenCapture != disabled) { 3440 ap.disableScreenCapture = disabled; 3441 saveSettingsLocked(userHandle); 3442 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 3443 } 3444 } 3445 } 3446 3447 /** 3448 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 3449 * active admin (if given admin is null). 3450 */ 3451 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 3452 if (!mHasFeature) { 3453 return false; 3454 } 3455 synchronized (this) { 3456 if (who != null) { 3457 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3458 return (admin != null) ? admin.disableScreenCapture : false; 3459 } 3460 3461 DevicePolicyData policy = getUserData(userHandle); 3462 final int N = policy.mAdminList.size(); 3463 for (int i = 0; i < N; i++) { 3464 ActiveAdmin admin = policy.mAdminList.get(i); 3465 if (admin.disableScreenCapture) { 3466 return true; 3467 } 3468 } 3469 return false; 3470 } 3471 } 3472 3473 private void updateScreenCaptureDisabledInWindowManager(int userHandle, boolean disabled) { 3474 long ident = Binder.clearCallingIdentity(); 3475 try { 3476 getWindowManager().setScreenCaptureDisabled(userHandle, disabled); 3477 } catch (RemoteException e) { 3478 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 3479 } finally { 3480 Binder.restoreCallingIdentity(ident); 3481 } 3482 } 3483 3484 /** 3485 * Set whether auto time is required by the specified admin (must be device owner). 3486 */ 3487 public void setAutoTimeRequired(ComponentName who, int userHandle, boolean required) { 3488 if (!mHasFeature) { 3489 return; 3490 } 3491 enforceCrossUserPermission(userHandle); 3492 synchronized (this) { 3493 if (who == null) { 3494 throw new NullPointerException("ComponentName is null"); 3495 } 3496 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3497 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3498 if (admin.requireAutoTime != required) { 3499 admin.requireAutoTime = required; 3500 saveSettingsLocked(userHandle); 3501 } 3502 } 3503 3504 // Turn AUTO_TIME on in settings if it is required 3505 if (required) { 3506 long ident = Binder.clearCallingIdentity(); 3507 try { 3508 Settings.Global.putInt(mContext.getContentResolver(), 3509 Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 3510 } finally { 3511 Binder.restoreCallingIdentity(ident); 3512 } 3513 } 3514 } 3515 3516 /** 3517 * Returns whether or not auto time is required by the device owner. 3518 */ 3519 public boolean getAutoTimeRequired() { 3520 if (!mHasFeature) { 3521 return false; 3522 } 3523 synchronized (this) { 3524 ActiveAdmin deviceOwner = getDeviceOwnerAdmin(); 3525 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 3526 } 3527 } 3528 3529 /** 3530 * The system property used to share the state of the camera. The native camera service 3531 * is expected to read this property and act accordingly. 3532 */ 3533 public static final String SYSTEM_PROP_DISABLE_CAMERA = "sys.secpolicy.camera.disabled"; 3534 3535 /** 3536 * Disables all device cameras according to the specified admin. 3537 */ 3538 public void setCameraDisabled(ComponentName who, boolean disabled, int userHandle) { 3539 if (!mHasFeature) { 3540 return; 3541 } 3542 enforceCrossUserPermission(userHandle); 3543 synchronized (this) { 3544 if (who == null) { 3545 throw new NullPointerException("ComponentName is null"); 3546 } 3547 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3548 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 3549 if (ap.disableCamera != disabled) { 3550 ap.disableCamera = disabled; 3551 saveSettingsLocked(userHandle); 3552 } 3553 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 3554 } 3555 } 3556 3557 /** 3558 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 3559 * active admins. 3560 */ 3561 public boolean getCameraDisabled(ComponentName who, int userHandle) { 3562 if (!mHasFeature) { 3563 return false; 3564 } 3565 synchronized (this) { 3566 if (who != null) { 3567 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3568 return (admin != null) ? admin.disableCamera : false; 3569 } 3570 3571 DevicePolicyData policy = getUserData(userHandle); 3572 // Determine whether or not the device camera is disabled for any active admins. 3573 final int N = policy.mAdminList.size(); 3574 for (int i = 0; i < N; i++) { 3575 ActiveAdmin admin = policy.mAdminList.get(i); 3576 if (admin.disableCamera) { 3577 return true; 3578 } 3579 } 3580 return false; 3581 } 3582 } 3583 3584 /** 3585 * Selectively disable keyguard features. 3586 */ 3587 public void setKeyguardDisabledFeatures(ComponentName who, int which, int userHandle) { 3588 if (!mHasFeature) { 3589 return; 3590 } 3591 enforceCrossUserPermission(userHandle); 3592 enforceNotManagedProfile(userHandle, "disable keyguard features"); 3593 synchronized (this) { 3594 if (who == null) { 3595 throw new NullPointerException("ComponentName is null"); 3596 } 3597 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3598 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 3599 if (ap.disabledKeyguardFeatures != which) { 3600 ap.disabledKeyguardFeatures = which; 3601 saveSettingsLocked(userHandle); 3602 } 3603 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 3604 } 3605 } 3606 3607 /** 3608 * Gets the disabled state for features in keyguard for the given admin, 3609 * or the aggregate of all active admins if who is null. 3610 */ 3611 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 3612 if (!mHasFeature) { 3613 return 0; 3614 } 3615 enforceCrossUserPermission(userHandle); 3616 synchronized (this) { 3617 if (who != null) { 3618 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3619 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 3620 } 3621 3622 // Determine which keyguard features are disabled for any active admins. 3623 DevicePolicyData policy = getUserData(userHandle); 3624 final int N = policy.mAdminList.size(); 3625 int which = 0; 3626 for (int i = 0; i < N; i++) { 3627 ActiveAdmin admin = policy.mAdminList.get(i); 3628 which |= admin.disabledKeyguardFeatures; 3629 } 3630 return which; 3631 } 3632 } 3633 3634 @Override 3635 public boolean setDeviceOwner(String packageName, String ownerName) { 3636 if (!mHasFeature) { 3637 return false; 3638 } 3639 if (packageName == null 3640 || !DeviceOwner.isInstalled(packageName, mContext.getPackageManager())) { 3641 throw new IllegalArgumentException("Invalid package name " + packageName 3642 + " for device owner"); 3643 } 3644 synchronized (this) { 3645 if (!allowedToSetDeviceOwnerOnDevice()) { 3646 throw new IllegalStateException( 3647 "Trying to set device owner but device is already provisioned."); 3648 } 3649 3650 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3651 throw new IllegalStateException( 3652 "Trying to set device owner but device owner is already set."); 3653 } 3654 3655 if (mDeviceOwner == null) { 3656 // Device owner is not set and does not exist, set it. 3657 mDeviceOwner = DeviceOwner.createWithDeviceOwner(packageName, ownerName); 3658 mDeviceOwner.writeOwnerFile(); 3659 return true; 3660 } else { 3661 // Device owner is not set but a profile owner exists, update Device owner state. 3662 mDeviceOwner.setDeviceOwner(packageName, ownerName); 3663 mDeviceOwner.writeOwnerFile(); 3664 return true; 3665 } 3666 } 3667 } 3668 3669 @Override 3670 public boolean isDeviceOwner(String packageName) { 3671 if (!mHasFeature) { 3672 return false; 3673 } 3674 synchronized (this) { 3675 return mDeviceOwner != null 3676 && mDeviceOwner.hasDeviceOwner() 3677 && mDeviceOwner.getDeviceOwnerPackageName().equals(packageName); 3678 } 3679 } 3680 3681 @Override 3682 public String getDeviceOwner() { 3683 if (!mHasFeature) { 3684 return null; 3685 } 3686 synchronized (this) { 3687 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3688 return mDeviceOwner.getDeviceOwnerPackageName(); 3689 } 3690 } 3691 return null; 3692 } 3693 3694 @Override 3695 public String getDeviceOwnerName() { 3696 if (!mHasFeature) { 3697 return null; 3698 } 3699 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3700 synchronized (this) { 3701 if (mDeviceOwner != null) { 3702 return mDeviceOwner.getDeviceOwnerName(); 3703 } 3704 } 3705 return null; 3706 } 3707 3708 // Returns the active device owner or null if there is no device owner. 3709 private ActiveAdmin getDeviceOwnerAdmin() { 3710 String deviceOwnerPackageName = getDeviceOwner(); 3711 if (deviceOwnerPackageName == null) { 3712 return null; 3713 } 3714 3715 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3716 final int n = policy.mAdminList.size(); 3717 for (int i = 0; i < n; i++) { 3718 ActiveAdmin admin = policy.mAdminList.get(i); 3719 if (deviceOwnerPackageName.equals(admin.info.getPackageName())) { 3720 return admin; 3721 } 3722 } 3723 return null; 3724 } 3725 3726 @Override 3727 public void clearDeviceOwner(String packageName) { 3728 if (packageName == null) { 3729 throw new NullPointerException("packageName is null"); 3730 } 3731 try { 3732 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 3733 if (uid != Binder.getCallingUid()) { 3734 throw new SecurityException("Invalid packageName"); 3735 } 3736 } catch (NameNotFoundException e) { 3737 throw new SecurityException(e); 3738 } 3739 if (!isDeviceOwner(packageName)) { 3740 throw new SecurityException("clearDeviceOwner can only be called by the device owner"); 3741 } 3742 synchronized (this) { 3743 long ident = Binder.clearCallingIdentity(); 3744 try { 3745 clearUserRestrictions(new UserHandle(UserHandle.USER_OWNER)); 3746 if (mDeviceOwner != null) { 3747 mDeviceOwner.clearDeviceOwner(); 3748 mDeviceOwner.writeOwnerFile(); 3749 } 3750 } finally { 3751 Binder.restoreCallingIdentity(ident); 3752 } 3753 } 3754 } 3755 3756 @Override 3757 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 3758 if (!mHasFeature) { 3759 return false; 3760 } 3761 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3762 3763 UserInfo info = mUserManager.getUserInfo(userHandle); 3764 if (info == null) { 3765 // User doesn't exist. 3766 throw new IllegalArgumentException( 3767 "Attempted to set profile owner for invalid userId: " + userHandle); 3768 } 3769 if (info.isGuest()) { 3770 throw new IllegalStateException("Cannot set a profile owner on a guest"); 3771 } 3772 3773 if (who == null 3774 || !DeviceOwner.isInstalledForUser(who.getPackageName(), userHandle)) { 3775 throw new IllegalArgumentException("Component " + who 3776 + " not installed for userId:" + userHandle); 3777 } 3778 synchronized (this) { 3779 // Only SYSTEM_UID can override the userSetupComplete 3780 if (UserHandle.getAppId(Binder.getCallingUid()) != Process.SYSTEM_UID 3781 && hasUserSetupCompleted(userHandle)) { 3782 throw new IllegalStateException( 3783 "Trying to set profile owner but user is already set-up."); 3784 } 3785 3786 if (mDeviceOwner == null) { 3787 // Device owner state does not exist, create it. 3788 mDeviceOwner = DeviceOwner.createWithProfileOwner(who, ownerName, 3789 userHandle); 3790 mDeviceOwner.writeOwnerFile(); 3791 return true; 3792 } else { 3793 // Device owner already exists, update it. 3794 mDeviceOwner.setProfileOwner(who, ownerName, userHandle); 3795 mDeviceOwner.writeOwnerFile(); 3796 return true; 3797 } 3798 } 3799 } 3800 3801 @Override 3802 public void clearProfileOwner(ComponentName who) { 3803 if (!mHasFeature) { 3804 return; 3805 } 3806 UserHandle callingUser = Binder.getCallingUserHandle(); 3807 // Check if this is the profile owner who is calling 3808 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3809 synchronized (this) { 3810 long ident = Binder.clearCallingIdentity(); 3811 try { 3812 clearUserRestrictions(callingUser); 3813 if (mDeviceOwner != null) { 3814 mDeviceOwner.removeProfileOwner(callingUser.getIdentifier()); 3815 mDeviceOwner.writeOwnerFile(); 3816 } 3817 } finally { 3818 Binder.restoreCallingIdentity(ident); 3819 } 3820 } 3821 } 3822 3823 private void clearUserRestrictions(UserHandle userHandle) { 3824 AudioManager audioManager = 3825 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 3826 Bundle userRestrictions = mUserManager.getUserRestrictions(); 3827 mUserManager.setUserRestrictions(new Bundle(), userHandle); 3828 if (userRestrictions.getBoolean(UserManager.DISALLOW_ADJUST_VOLUME)) { 3829 audioManager.setMasterMute(false); 3830 } 3831 if (userRestrictions.getBoolean(UserManager.DISALLOW_UNMUTE_MICROPHONE)) { 3832 audioManager.setMicrophoneMute(false); 3833 } 3834 } 3835 3836 @Override 3837 public boolean hasUserSetupCompleted() { 3838 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 3839 } 3840 3841 private boolean hasUserSetupCompleted(int userHandle) { 3842 if (!mHasFeature) { 3843 return true; 3844 } 3845 DevicePolicyData policy = getUserData(userHandle); 3846 // If policy is null, return true, else check if the setup has completed. 3847 return policy == null || policy.mUserSetupComplete; 3848 } 3849 3850 @Override 3851 public void setProfileEnabled(ComponentName who) { 3852 if (!mHasFeature) { 3853 return; 3854 } 3855 final int userHandle = UserHandle.getCallingUserId(); 3856 synchronized (this) { 3857 // Check for permissions 3858 if (who == null) { 3859 throw new NullPointerException("ComponentName is null"); 3860 } 3861 // Check if this is the profile owner who is calling 3862 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3863 int userId = UserHandle.getCallingUserId(); 3864 3865 long id = Binder.clearCallingIdentity(); 3866 try { 3867 mUserManager.setUserEnabled(userId); 3868 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 3869 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 3870 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 3871 Intent.FLAG_RECEIVER_FOREGROUND); 3872 // TODO This should send to parent of profile (which is always owner at the moment). 3873 mContext.sendBroadcastAsUser(intent, UserHandle.OWNER); 3874 } finally { 3875 restoreCallingIdentity(id); 3876 } 3877 } 3878 } 3879 3880 @Override 3881 public void setProfileName(ComponentName who, String profileName) { 3882 int userId = UserHandle.getCallingUserId(); 3883 3884 if (who == null) { 3885 throw new NullPointerException("ComponentName is null"); 3886 } 3887 3888 // Check if this is the profile owner (includes device owner). 3889 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3890 3891 long id = Binder.clearCallingIdentity(); 3892 try { 3893 mUserManager.setUserName(userId, profileName); 3894 } finally { 3895 restoreCallingIdentity(id); 3896 } 3897 } 3898 3899 @Override 3900 public ComponentName getProfileOwner(int userHandle) { 3901 if (!mHasFeature) { 3902 return null; 3903 } 3904 3905 synchronized (this) { 3906 if (mDeviceOwner != null) { 3907 return mDeviceOwner.getProfileOwnerComponent(userHandle); 3908 } 3909 } 3910 return null; 3911 } 3912 3913 // Returns the active profile owner for this user or null if the current user has no 3914 // profile owner. 3915 private ActiveAdmin getProfileOwnerAdmin(int userHandle) { 3916 ComponentName profileOwner = 3917 mDeviceOwner != null ? mDeviceOwner.getProfileOwnerComponent(userHandle) : null; 3918 if (profileOwner == null) { 3919 return null; 3920 } 3921 3922 DevicePolicyData policy = getUserData(userHandle); 3923 final int n = policy.mAdminList.size(); 3924 for (int i = 0; i < n; i++) { 3925 ActiveAdmin admin = policy.mAdminList.get(i); 3926 if (profileOwner.equals(admin.info.getComponent())) { 3927 return admin; 3928 } 3929 } 3930 return null; 3931 } 3932 3933 @Override 3934 public String getProfileOwnerName(int userHandle) { 3935 if (!mHasFeature) { 3936 return null; 3937 } 3938 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3939 3940 synchronized (this) { 3941 if (mDeviceOwner != null) { 3942 return mDeviceOwner.getProfileOwnerName(userHandle); 3943 } 3944 } 3945 return null; 3946 } 3947 3948 /** 3949 * Device owner can only be set on an unprovisioned device, unless it was initiated by "adb", in 3950 * which case we allow it if no account is associated with the device. 3951 */ 3952 private boolean allowedToSetDeviceOwnerOnDevice() { 3953 int callingId = Binder.getCallingUid(); 3954 if (callingId == Process.SHELL_UID || callingId == Process.ROOT_UID) { 3955 return AccountManager.get(mContext).getAccounts().length == 0; 3956 } else { 3957 return !hasUserSetupCompleted(UserHandle.USER_OWNER); 3958 } 3959 } 3960 3961 private void enforceCrossUserPermission(int userHandle) { 3962 if (userHandle < 0) { 3963 throw new IllegalArgumentException("Invalid userId " + userHandle); 3964 } 3965 final int callingUid = Binder.getCallingUid(); 3966 if (userHandle == UserHandle.getUserId(callingUid)) return; 3967 if (callingUid != Process.SYSTEM_UID && callingUid != 0) { 3968 mContext.enforceCallingOrSelfPermission( 3969 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 3970 + " INTERACT_ACROSS_USERS_FULL permission"); 3971 } 3972 } 3973 3974 private void enforceSystemProcess(String message) { 3975 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 3976 throw new SecurityException(message); 3977 } 3978 } 3979 3980 private void enforceNotManagedProfile(int userHandle, String message) { 3981 if(isManagedProfile(userHandle)) { 3982 throw new SecurityException("You can not " + message + " for a managed profile. "); 3983 } 3984 } 3985 3986 private UserInfo getProfileParent(int userHandle) { 3987 long ident = Binder.clearCallingIdentity(); 3988 try { 3989 return mUserManager.getProfileParent(userHandle); 3990 } finally { 3991 Binder.restoreCallingIdentity(ident); 3992 } 3993 } 3994 3995 private boolean isManagedProfile(int userHandle) { 3996 long ident = Binder.clearCallingIdentity(); 3997 try { 3998 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 3999 } finally { 4000 Binder.restoreCallingIdentity(ident); 4001 } 4002 } 4003 4004 private void enableIfNecessary(String packageName, int userId) { 4005 try { 4006 IPackageManager ipm = AppGlobals.getPackageManager(); 4007 ApplicationInfo ai = ipm.getApplicationInfo(packageName, 4008 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 4009 userId); 4010 if (ai.enabledSetting 4011 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 4012 ipm.setApplicationEnabledSetting(packageName, 4013 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 4014 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 4015 } 4016 } catch (RemoteException e) { 4017 } 4018 } 4019 4020 @Override 4021 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 4022 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 4023 != PackageManager.PERMISSION_GRANTED) { 4024 4025 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 4026 + Binder.getCallingPid() 4027 + ", uid=" + Binder.getCallingUid()); 4028 return; 4029 } 4030 4031 final Printer p = new PrintWriterPrinter(pw); 4032 4033 synchronized (this) { 4034 p.println("Current Device Policy Manager state:"); 4035 4036 int userCount = mUserData.size(); 4037 for (int u = 0; u < userCount; u++) { 4038 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 4039 p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 4040 final int N = policy.mAdminList.size(); 4041 for (int i=0; i<N; i++) { 4042 ActiveAdmin ap = policy.mAdminList.get(i); 4043 if (ap != null) { 4044 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 4045 pw.println(":"); 4046 ap.dump(" ", pw); 4047 } 4048 } 4049 4050 pw.println(" "); 4051 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 4052 } 4053 } 4054 } 4055 4056 @Override 4057 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 4058 ComponentName activity) { 4059 final int userHandle = UserHandle.getCallingUserId(); 4060 4061 synchronized (this) { 4062 if (who == null) { 4063 throw new NullPointerException("ComponentName is null"); 4064 } 4065 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4066 4067 IPackageManager pm = AppGlobals.getPackageManager(); 4068 long id = Binder.clearCallingIdentity(); 4069 try { 4070 pm.addPersistentPreferredActivity(filter, activity, userHandle); 4071 } catch (RemoteException re) { 4072 // Shouldn't happen 4073 } finally { 4074 restoreCallingIdentity(id); 4075 } 4076 } 4077 } 4078 4079 @Override 4080 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 4081 final int userHandle = UserHandle.getCallingUserId(); 4082 4083 synchronized (this) { 4084 if (who == null) { 4085 throw new NullPointerException("ComponentName is null"); 4086 } 4087 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4088 4089 IPackageManager pm = AppGlobals.getPackageManager(); 4090 long id = Binder.clearCallingIdentity(); 4091 try { 4092 pm.clearPackagePersistentPreferredActivities(packageName, userHandle); 4093 } catch (RemoteException re) { 4094 // Shouldn't happen 4095 } finally { 4096 restoreCallingIdentity(id); 4097 } 4098 } 4099 } 4100 4101 @Override 4102 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 4103 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4104 4105 synchronized (this) { 4106 if (who == null) { 4107 throw new NullPointerException("ComponentName is null"); 4108 } 4109 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4110 4111 long id = Binder.clearCallingIdentity(); 4112 try { 4113 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 4114 } finally { 4115 restoreCallingIdentity(id); 4116 } 4117 } 4118 } 4119 4120 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 4121 PersistableBundle args, int userHandle) { 4122 if (!mHasFeature) { 4123 return; 4124 } 4125 enforceCrossUserPermission(userHandle); 4126 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 4127 synchronized (this) { 4128 if (admin == null) { 4129 throw new NullPointerException("admin is null"); 4130 } 4131 if (agent == null) { 4132 throw new NullPointerException("agent is null"); 4133 } 4134 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 4135 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4136 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 4137 saveSettingsLocked(userHandle); 4138 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 4139 } 4140 } 4141 4142 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 4143 ComponentName agent, int userHandle) { 4144 if (!mHasFeature) { 4145 return null; 4146 } 4147 enforceCrossUserPermission(userHandle); 4148 if (agent == null) { 4149 throw new NullPointerException("agent is null"); 4150 } 4151 4152 synchronized (this) { 4153 final String componentName = agent.flattenToString(); 4154 if (admin != null) { 4155 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 4156 if (ap == null) return null; 4157 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 4158 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 4159 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 4160 result.add(trustAgentInfo.options); 4161 return result; 4162 } 4163 4164 // Return strictest policy for this user and profiles that are visible from this user. 4165 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 4166 List<PersistableBundle> result = null; 4167 4168 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 4169 // of the options. If any admin doesn't have options, discard options for the rest 4170 // and return null. 4171 boolean allAdminsHaveOptions = true; 4172 for (UserInfo userInfo : profiles) { 4173 DevicePolicyData policy = getUserData(userInfo.id); 4174 final int N = policy.mAdminList.size(); 4175 for (int i=0; i < N; i++) { 4176 final ActiveAdmin active = policy.mAdminList.get(i); 4177 final boolean disablesTrust = (active.disabledKeyguardFeatures 4178 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 4179 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 4180 if (info != null && info.options != null && !info.options.isEmpty()) { 4181 if (disablesTrust) { 4182 if (result == null) { 4183 result = new ArrayList<PersistableBundle>(); 4184 } 4185 result.add(info.options); 4186 } else { 4187 Log.w(LOG_TAG, "Ignoring admin " + active.info 4188 + " because it has trust options but doesn't declare " 4189 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 4190 } 4191 } else if (disablesTrust) { 4192 allAdminsHaveOptions = false; 4193 break; 4194 } 4195 } 4196 } 4197 return allAdminsHaveOptions ? result : null; 4198 } 4199 } 4200 4201 @Override 4202 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 4203 synchronized (this) { 4204 if (who == null) { 4205 throw new NullPointerException("ComponentName is null"); 4206 } 4207 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4208 4209 int userHandle = UserHandle.getCallingUserId(); 4210 DevicePolicyData userData = getUserData(userHandle); 4211 userData.mRestrictionsProvider = permissionProvider; 4212 saveSettingsLocked(userHandle); 4213 } 4214 } 4215 4216 @Override 4217 public ComponentName getRestrictionsProvider(int userHandle) { 4218 synchronized (this) { 4219 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4220 throw new SecurityException("Only the system can query the permission provider"); 4221 } 4222 DevicePolicyData userData = getUserData(userHandle); 4223 return userData != null ? userData.mRestrictionsProvider : null; 4224 } 4225 } 4226 4227 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 4228 int callingUserId = UserHandle.getCallingUserId(); 4229 synchronized (this) { 4230 if (who == null) { 4231 throw new NullPointerException("ComponentName is null"); 4232 } 4233 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4234 4235 IPackageManager pm = AppGlobals.getPackageManager(); 4236 long id = Binder.clearCallingIdentity(); 4237 try { 4238 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 4239 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), 4240 mContext.getUserId(), callingUserId, UserHandle.USER_OWNER, 0); 4241 } 4242 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 4243 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), 4244 mContext.getUserId(), UserHandle.USER_OWNER, callingUserId, 0); 4245 } 4246 } catch (RemoteException re) { 4247 // Shouldn't happen 4248 } finally { 4249 restoreCallingIdentity(id); 4250 } 4251 } 4252 } 4253 4254 public void clearCrossProfileIntentFilters(ComponentName who) { 4255 int callingUserId = UserHandle.getCallingUserId(); 4256 synchronized (this) { 4257 if (who == null) { 4258 throw new NullPointerException("ComponentName is null"); 4259 } 4260 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4261 IPackageManager pm = AppGlobals.getPackageManager(); 4262 long id = Binder.clearCallingIdentity(); 4263 try { 4264 pm.clearCrossProfileIntentFilters(callingUserId, who.getPackageName(), 4265 callingUserId); 4266 // If we want to support multiple managed profiles, we will have to only remove 4267 // those that have callingUserId as their target. 4268 pm.clearCrossProfileIntentFilters(UserHandle.USER_OWNER, who.getPackageName(), 4269 callingUserId); 4270 } catch (RemoteException re) { 4271 // Shouldn't happen 4272 } finally { 4273 restoreCallingIdentity(id); 4274 } 4275 } 4276 } 4277 4278 /** 4279 * @return true if all packages in enabledPackages are either in the list 4280 * permittedList or are a system app. 4281 */ 4282 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 4283 List<String> permittedList) { 4284 int userIdToCheck = UserHandle.getCallingUserId(); 4285 long id = Binder.clearCallingIdentity(); 4286 try { 4287 // If we have an enabled packages list for a managed profile the packages 4288 // we should check are installed for the parent user. 4289 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 4290 if (user.isManagedProfile()) { 4291 userIdToCheck = user.profileGroupId; 4292 } 4293 4294 IPackageManager pm = AppGlobals.getPackageManager(); 4295 for (String enabledPackage : enabledPackages) { 4296 boolean systemService = false; 4297 try { 4298 ApplicationInfo applicationInfo = pm.getApplicationInfo(enabledPackage, 4299 PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 4300 systemService = (applicationInfo.flags 4301 & ApplicationInfo.FLAG_SYSTEM) != 0; 4302 } catch (RemoteException e) { 4303 Log.i(LOG_TAG, "Can't talk to package managed", e); 4304 } 4305 if (!systemService && !permittedList.contains(enabledPackage)) { 4306 return false; 4307 } 4308 } 4309 } finally { 4310 restoreCallingIdentity(id); 4311 } 4312 return true; 4313 } 4314 4315 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 4316 // Not using AccessibilityManager.getInstance because that guesses 4317 // at the user you require based on callingUid and caches for a given 4318 // process. 4319 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 4320 IAccessibilityManager service = iBinder == null 4321 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 4322 return new AccessibilityManager(mContext, service, userId); 4323 } 4324 4325 @Override 4326 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 4327 if (!mHasFeature) { 4328 return false; 4329 } 4330 if (who == null) { 4331 throw new NullPointerException("ComponentName is null"); 4332 } 4333 4334 if (packageList != null) { 4335 int userId = UserHandle.getCallingUserId(); 4336 List<AccessibilityServiceInfo> enabledServices = null; 4337 long id = Binder.clearCallingIdentity(); 4338 try { 4339 UserInfo user = mUserManager.getUserInfo(userId); 4340 if (user.isManagedProfile()) { 4341 userId = user.profileGroupId; 4342 } 4343 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 4344 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 4345 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 4346 } finally { 4347 restoreCallingIdentity(id); 4348 } 4349 4350 if (enabledServices != null) { 4351 List<String> enabledPackages = new ArrayList<String>(); 4352 for (AccessibilityServiceInfo service : enabledServices) { 4353 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 4354 } 4355 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 4356 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 4357 + "because it contains already enabled accesibility services."); 4358 return false; 4359 } 4360 } 4361 } 4362 4363 synchronized (this) { 4364 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4365 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4366 admin.permittedAccessiblityServices = packageList; 4367 saveSettingsLocked(UserHandle.getCallingUserId()); 4368 } 4369 return true; 4370 } 4371 4372 @Override 4373 public List getPermittedAccessibilityServices(ComponentName who) { 4374 if (!mHasFeature) { 4375 return null; 4376 } 4377 4378 if (who == null) { 4379 throw new NullPointerException("ComponentName is null"); 4380 } 4381 4382 synchronized (this) { 4383 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4384 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4385 return admin.permittedAccessiblityServices; 4386 } 4387 } 4388 4389 @Override 4390 public List getPermittedAccessibilityServicesForUser(int userId) { 4391 if (!mHasFeature) { 4392 return null; 4393 } 4394 synchronized (this) { 4395 List<String> result = null; 4396 // If we have multiple profiles we return the intersection of the 4397 // permitted lists. This can happen in cases where we have a device 4398 // and profile owner. 4399 List<UserInfo> profiles = mUserManager.getProfiles(userId); 4400 final int PROFILES_SIZE = profiles.size(); 4401 for (int i = 0; i < PROFILES_SIZE; ++i) { 4402 // Just loop though all admins, only device or profiles 4403 // owners can have permitted lists set. 4404 DevicePolicyData policy = getUserData(profiles.get(i).id); 4405 final int N = policy.mAdminList.size(); 4406 for (int j = 0; j < N; j++) { 4407 ActiveAdmin admin = policy.mAdminList.get(j); 4408 List<String> fromAdmin = admin.permittedAccessiblityServices; 4409 if (fromAdmin != null) { 4410 if (result == null) { 4411 result = new ArrayList<String>(fromAdmin); 4412 } else { 4413 result.retainAll(fromAdmin); 4414 } 4415 } 4416 } 4417 } 4418 4419 // If we have a permitted list add all system accessibility services. 4420 if (result != null) { 4421 long id = Binder.clearCallingIdentity(); 4422 try { 4423 UserInfo user = mUserManager.getUserInfo(userId); 4424 if (user.isManagedProfile()) { 4425 userId = user.profileGroupId; 4426 } 4427 AccessibilityManager accessibilityManager = 4428 getAccessibilityManagerForUser(userId); 4429 List<AccessibilityServiceInfo> installedServices = 4430 accessibilityManager.getInstalledAccessibilityServiceList(); 4431 4432 IPackageManager pm = AppGlobals.getPackageManager(); 4433 if (installedServices != null) { 4434 for (AccessibilityServiceInfo service : installedServices) { 4435 String packageName = service.getResolveInfo().serviceInfo.packageName; 4436 try { 4437 ApplicationInfo applicationInfo = pm.getApplicationInfo(packageName, 4438 PackageManager.GET_UNINSTALLED_PACKAGES, userId); 4439 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 4440 result.add(packageName); 4441 } 4442 } catch (RemoteException e) { 4443 Log.i(LOG_TAG, "Accessibility service in missing package", e); 4444 } 4445 } 4446 } 4447 } finally { 4448 restoreCallingIdentity(id); 4449 } 4450 } 4451 4452 return result; 4453 } 4454 } 4455 4456 private boolean checkCallerIsCurrentUserOrProfile() { 4457 int callingUserId = UserHandle.getCallingUserId(); 4458 long token = Binder.clearCallingIdentity(); 4459 try { 4460 UserInfo currentUser; 4461 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 4462 try { 4463 currentUser = ActivityManagerNative.getDefault().getCurrentUser(); 4464 } catch (RemoteException e) { 4465 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 4466 return false; 4467 } 4468 4469 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 4470 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 4471 + "of a user that isn't the foreground user."); 4472 return false; 4473 } 4474 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 4475 Slog.e(LOG_TAG, "Cannot set permitted input methods " 4476 + "of a user that isn't the foreground user."); 4477 return false; 4478 } 4479 } finally { 4480 Binder.restoreCallingIdentity(token); 4481 } 4482 return true; 4483 } 4484 4485 @Override 4486 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 4487 if (!mHasFeature) { 4488 return false; 4489 } 4490 if (who == null) { 4491 throw new NullPointerException("ComponentName is null"); 4492 } 4493 4494 // TODO When InputMethodManager supports per user calls remove 4495 // this restriction. 4496 if (!checkCallerIsCurrentUserOrProfile()) { 4497 return false; 4498 } 4499 4500 if (packageList != null) { 4501 // InputMethodManager fetches input methods for current user. 4502 // So this can only be set when calling user is the current user 4503 // or parent is current user in case of managed profiles. 4504 InputMethodManager inputMethodManager = (InputMethodManager) mContext 4505 .getSystemService(Context.INPUT_METHOD_SERVICE); 4506 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 4507 4508 if (enabledImes != null) { 4509 List<String> enabledPackages = new ArrayList<String>(); 4510 for (InputMethodInfo ime : enabledImes) { 4511 enabledPackages.add(ime.getPackageName()); 4512 } 4513 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 4514 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 4515 + "because it contains already enabled input method."); 4516 return false; 4517 } 4518 } 4519 } 4520 4521 synchronized (this) { 4522 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4523 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4524 admin.permittedInputMethods = packageList; 4525 saveSettingsLocked(UserHandle.getCallingUserId()); 4526 } 4527 return true; 4528 } 4529 4530 @Override 4531 public List getPermittedInputMethods(ComponentName who) { 4532 if (!mHasFeature) { 4533 return null; 4534 } 4535 4536 if (who == null) { 4537 throw new NullPointerException("ComponentName is null"); 4538 } 4539 4540 synchronized (this) { 4541 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4542 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4543 return admin.permittedInputMethods; 4544 } 4545 } 4546 4547 @Override 4548 public List getPermittedInputMethodsForCurrentUser() { 4549 UserInfo currentUser; 4550 try { 4551 currentUser = ActivityManagerNative.getDefault().getCurrentUser(); 4552 } catch (RemoteException e) { 4553 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 4554 // Activity managed is dead, just allow all IMEs 4555 return null; 4556 } 4557 4558 int userId = currentUser.id; 4559 synchronized (this) { 4560 List<String> result = null; 4561 // If we have multiple profiles we return the intersection of the 4562 // permitted lists. This can happen in cases where we have a device 4563 // and profile owner. 4564 List<UserInfo> profiles = mUserManager.getProfiles(userId); 4565 final int PROFILES_SIZE = profiles.size(); 4566 for (int i = 0; i < PROFILES_SIZE; ++i) { 4567 // Just loop though all admins, only device or profiles 4568 // owners can have permitted lists set. 4569 DevicePolicyData policy = getUserData(profiles.get(i).id); 4570 final int N = policy.mAdminList.size(); 4571 for (int j = 0; j < N; j++) { 4572 ActiveAdmin admin = policy.mAdminList.get(j); 4573 List<String> fromAdmin = admin.permittedInputMethods; 4574 if (fromAdmin != null) { 4575 if (result == null) { 4576 result = new ArrayList<String>(fromAdmin); 4577 } else { 4578 result.retainAll(fromAdmin); 4579 } 4580 } 4581 } 4582 } 4583 4584 // If we have a permitted list add all system input methods. 4585 if (result != null) { 4586 InputMethodManager inputMethodManager = (InputMethodManager) mContext 4587 .getSystemService(Context.INPUT_METHOD_SERVICE); 4588 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 4589 long id = Binder.clearCallingIdentity(); 4590 try { 4591 IPackageManager pm = AppGlobals.getPackageManager(); 4592 if (imes != null) { 4593 for (InputMethodInfo ime : imes) { 4594 String packageName = ime.getPackageName(); 4595 try { 4596 ApplicationInfo applicationInfo = pm.getApplicationInfo( 4597 packageName, PackageManager.GET_UNINSTALLED_PACKAGES, 4598 userId); 4599 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 4600 result.add(packageName); 4601 } 4602 } catch (RemoteException e) { 4603 Log.i(LOG_TAG, "Input method for missing package", e); 4604 } 4605 } 4606 } 4607 } finally { 4608 restoreCallingIdentity(id); 4609 } 4610 } 4611 return result; 4612 } 4613 } 4614 4615 @Override 4616 public UserHandle createUser(ComponentName who, String name) { 4617 synchronized (this) { 4618 if (who == null) { 4619 throw new NullPointerException("ComponentName is null"); 4620 } 4621 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4622 4623 long id = Binder.clearCallingIdentity(); 4624 try { 4625 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 4626 if (userInfo != null) { 4627 return userInfo.getUserHandle(); 4628 } 4629 return null; 4630 } finally { 4631 restoreCallingIdentity(id); 4632 } 4633 } 4634 } 4635 4636 @Override 4637 public UserHandle createAndInitializeUser(ComponentName who, String name, 4638 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 4639 UserHandle user = createUser(who, name); 4640 long id = Binder.clearCallingIdentity(); 4641 try { 4642 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 4643 final IPackageManager ipm = AppGlobals.getPackageManager(); 4644 IActivityManager activityManager = ActivityManagerNative.getDefault(); 4645 4646 try { 4647 // Install the profile owner if not present. 4648 if (!ipm.isPackageAvailable(profileOwnerPkg, user.getIdentifier())) { 4649 ipm.installExistingPackageAsUser(profileOwnerPkg, user.getIdentifier()); 4650 } 4651 4652 // Start user in background. 4653 activityManager.startUserInBackground(user.getIdentifier()); 4654 } catch (RemoteException e) { 4655 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 4656 } 4657 4658 setActiveAdmin(profileOwnerComponent, true, user.getIdentifier(), adminExtras); 4659 setProfileOwner(profileOwnerComponent, ownerName, user.getIdentifier()); 4660 return user; 4661 } finally { 4662 restoreCallingIdentity(id); 4663 } 4664 } 4665 4666 @Override 4667 public boolean removeUser(ComponentName who, UserHandle userHandle) { 4668 synchronized (this) { 4669 if (who == null) { 4670 throw new NullPointerException("ComponentName is null"); 4671 } 4672 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4673 4674 long id = Binder.clearCallingIdentity(); 4675 try { 4676 return mUserManager.removeUser(userHandle.getIdentifier()); 4677 } finally { 4678 restoreCallingIdentity(id); 4679 } 4680 } 4681 } 4682 4683 @Override 4684 public boolean switchUser(ComponentName who, UserHandle userHandle) { 4685 synchronized (this) { 4686 if (who == null) { 4687 throw new NullPointerException("ComponentName is null"); 4688 } 4689 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4690 4691 long id = Binder.clearCallingIdentity(); 4692 try { 4693 int userId = UserHandle.USER_OWNER; 4694 if (userHandle != null) { 4695 userId = userHandle.getIdentifier(); 4696 } 4697 return ActivityManagerNative.getDefault().switchUser(userId); 4698 } catch (RemoteException e) { 4699 Log.e(LOG_TAG, "Couldn't switch user", e); 4700 return false; 4701 } finally { 4702 restoreCallingIdentity(id); 4703 } 4704 } 4705 } 4706 4707 @Override 4708 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 4709 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4710 4711 synchronized (this) { 4712 if (who == null) { 4713 throw new NullPointerException("ComponentName is null"); 4714 } 4715 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4716 4717 long id = Binder.clearCallingIdentity(); 4718 try { 4719 return mUserManager.getApplicationRestrictions(packageName, userHandle); 4720 } finally { 4721 restoreCallingIdentity(id); 4722 } 4723 } 4724 } 4725 4726 @Override 4727 public void setUserRestriction(ComponentName who, String key, boolean enabled) { 4728 final UserHandle user = new UserHandle(UserHandle.getCallingUserId()); 4729 final int userHandle = user.getIdentifier(); 4730 synchronized (this) { 4731 if (who == null) { 4732 throw new NullPointerException("ComponentName is null"); 4733 } 4734 ActiveAdmin activeAdmin = 4735 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4736 boolean isDeviceOwner = isDeviceOwner(activeAdmin.info.getPackageName()); 4737 if (!isDeviceOwner && userHandle != UserHandle.USER_OWNER 4738 && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) { 4739 throw new SecurityException("Profile owners cannot set user restriction " + key); 4740 } 4741 boolean alreadyRestricted = mUserManager.hasUserRestriction(key, user); 4742 4743 IAudioService iAudioService = null; 4744 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key) 4745 || UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4746 iAudioService = IAudioService.Stub.asInterface( 4747 ServiceManager.getService(Context.AUDIO_SERVICE)); 4748 } 4749 4750 if (enabled && !alreadyRestricted) { 4751 try { 4752 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 4753 iAudioService.setMicrophoneMute(true, who.getPackageName()); 4754 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4755 iAudioService.setMasterMute(true, 0, who.getPackageName(), null); 4756 } 4757 } catch (RemoteException re) { 4758 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 4759 } 4760 } 4761 long id = Binder.clearCallingIdentity(); 4762 try { 4763 if (enabled && !alreadyRestricted) { 4764 if (UserManager.DISALLOW_CONFIG_WIFI.equals(key)) { 4765 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4766 Settings.Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON, 0, 4767 userHandle); 4768 } else if (UserManager.DISALLOW_USB_FILE_TRANSFER.equals(key)) { 4769 UsbManager manager = 4770 (UsbManager) mContext.getSystemService(Context.USB_SERVICE); 4771 manager.setCurrentFunction("none", false); 4772 } else if (UserManager.DISALLOW_SHARE_LOCATION.equals(key)) { 4773 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4774 Settings.Secure.LOCATION_MODE, Settings.Secure.LOCATION_MODE_OFF, 4775 userHandle); 4776 Settings.Secure.putStringForUser(mContext.getContentResolver(), 4777 Settings.Secure.LOCATION_PROVIDERS_ALLOWED, "", 4778 userHandle); 4779 } else if (UserManager.DISALLOW_DEBUGGING_FEATURES.equals(key)) { 4780 // Only disable adb if changing for primary user, since it is global 4781 if (userHandle == UserHandle.USER_OWNER) { 4782 Settings.Global.putStringForUser(mContext.getContentResolver(), 4783 Settings.Global.ADB_ENABLED, "0", userHandle); 4784 } 4785 } else if (UserManager.ENSURE_VERIFY_APPS.equals(key)) { 4786 Settings.Global.putStringForUser(mContext.getContentResolver(), 4787 Settings.Global.PACKAGE_VERIFIER_ENABLE, "1", 4788 userHandle); 4789 Settings.Global.putStringForUser(mContext.getContentResolver(), 4790 Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, "1", 4791 userHandle); 4792 } else if (UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES.equals(key)) { 4793 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4794 Settings.Secure.INSTALL_NON_MARKET_APPS, 0, 4795 userHandle); 4796 } 4797 } 4798 mUserManager.setUserRestriction(key, enabled, user); 4799 } finally { 4800 restoreCallingIdentity(id); 4801 } 4802 if (!enabled && alreadyRestricted) { 4803 try { 4804 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 4805 iAudioService.setMicrophoneMute(false, who.getPackageName()); 4806 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4807 iAudioService.setMasterMute(false, 0, who.getPackageName(), null); 4808 } 4809 } catch (RemoteException re) { 4810 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 4811 } 4812 } 4813 sendChangedNotification(userHandle); 4814 } 4815 } 4816 4817 @Override 4818 public boolean setApplicationHidden(ComponentName who, String packageName, 4819 boolean hidden) { 4820 int callingUserId = UserHandle.getCallingUserId(); 4821 synchronized (this) { 4822 if (who == null) { 4823 throw new NullPointerException("ComponentName is null"); 4824 } 4825 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4826 4827 long id = Binder.clearCallingIdentity(); 4828 try { 4829 IPackageManager pm = AppGlobals.getPackageManager(); 4830 return pm.setApplicationHiddenSettingAsUser(packageName, hidden, callingUserId); 4831 } catch (RemoteException re) { 4832 // shouldn't happen 4833 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 4834 } finally { 4835 restoreCallingIdentity(id); 4836 } 4837 return false; 4838 } 4839 } 4840 4841 @Override 4842 public boolean isApplicationHidden(ComponentName who, String packageName) { 4843 int callingUserId = UserHandle.getCallingUserId(); 4844 synchronized (this) { 4845 if (who == null) { 4846 throw new NullPointerException("ComponentName is null"); 4847 } 4848 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4849 4850 long id = Binder.clearCallingIdentity(); 4851 try { 4852 IPackageManager pm = AppGlobals.getPackageManager(); 4853 return pm.getApplicationHiddenSettingAsUser(packageName, callingUserId); 4854 } catch (RemoteException re) { 4855 // shouldn't happen 4856 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 4857 } finally { 4858 restoreCallingIdentity(id); 4859 } 4860 return false; 4861 } 4862 } 4863 4864 @Override 4865 public void enableSystemApp(ComponentName who, String packageName) { 4866 synchronized (this) { 4867 if (who == null) { 4868 throw new NullPointerException("ComponentName is null"); 4869 } 4870 4871 // This API can only be called by an active device admin, 4872 // so try to retrieve it to check that the caller is one. 4873 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4874 4875 int userId = UserHandle.getCallingUserId(); 4876 long id = Binder.clearCallingIdentity(); 4877 4878 try { 4879 if (DBG) { 4880 Slog.v(LOG_TAG, "installing " + packageName + " for " 4881 + userId); 4882 } 4883 4884 UserManager um = UserManager.get(mContext); 4885 UserInfo primaryUser = um.getProfileParent(userId); 4886 4887 // Call did not come from a managed profile 4888 if (primaryUser == null) { 4889 primaryUser = um.getUserInfo(userId); 4890 } 4891 4892 IPackageManager pm = AppGlobals.getPackageManager(); 4893 if (!isSystemApp(pm, packageName, primaryUser.id)) { 4894 throw new IllegalArgumentException("Only system apps can be enabled this way."); 4895 } 4896 4897 // Install the app. 4898 pm.installExistingPackageAsUser(packageName, userId); 4899 4900 } catch (RemoteException re) { 4901 // shouldn't happen 4902 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 4903 } finally { 4904 restoreCallingIdentity(id); 4905 } 4906 } 4907 } 4908 4909 @Override 4910 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 4911 synchronized (this) { 4912 if (who == null) { 4913 throw new NullPointerException("ComponentName is null"); 4914 } 4915 4916 // This API can only be called by an active device admin, 4917 // so try to retrieve it to check that the caller is one. 4918 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4919 4920 int userId = UserHandle.getCallingUserId(); 4921 long id = Binder.clearCallingIdentity(); 4922 4923 try { 4924 UserManager um = UserManager.get(mContext); 4925 UserInfo primaryUser = um.getProfileParent(userId); 4926 4927 // Call did not come from a managed profile. 4928 if (primaryUser == null) { 4929 primaryUser = um.getUserInfo(userId); 4930 } 4931 4932 IPackageManager pm = AppGlobals.getPackageManager(); 4933 List<ResolveInfo> activitiesToEnable = pm.queryIntentActivities(intent, 4934 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 4935 0, // no flags 4936 primaryUser.id); 4937 4938 if (DBG) Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 4939 int numberOfAppsInstalled = 0; 4940 if (activitiesToEnable != null) { 4941 for (ResolveInfo info : activitiesToEnable) { 4942 if (info.activityInfo != null) { 4943 4944 if (!isSystemApp(pm, info.activityInfo.packageName, primaryUser.id)) { 4945 throw new IllegalArgumentException( 4946 "Only system apps can be enabled this way."); 4947 } 4948 4949 4950 numberOfAppsInstalled++; 4951 pm.installExistingPackageAsUser(info.activityInfo.packageName, userId); 4952 } 4953 } 4954 } 4955 return numberOfAppsInstalled; 4956 } catch (RemoteException e) { 4957 // shouldn't happen 4958 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 4959 return 0; 4960 } finally { 4961 restoreCallingIdentity(id); 4962 } 4963 } 4964 } 4965 4966 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 4967 throws RemoteException { 4968 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 4969 userId); 4970 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) > 0; 4971 } 4972 4973 @Override 4974 public void setAccountManagementDisabled(ComponentName who, String accountType, 4975 boolean disabled) { 4976 if (!mHasFeature) { 4977 return; 4978 } 4979 synchronized (this) { 4980 if (who == null) { 4981 throw new NullPointerException("ComponentName is null"); 4982 } 4983 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4984 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4985 if (disabled) { 4986 ap.accountTypesWithManagementDisabled.add(accountType); 4987 } else { 4988 ap.accountTypesWithManagementDisabled.remove(accountType); 4989 } 4990 saveSettingsLocked(UserHandle.getCallingUserId()); 4991 } 4992 } 4993 4994 @Override 4995 public String[] getAccountTypesWithManagementDisabled() { 4996 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 4997 } 4998 4999 @Override 5000 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 5001 enforceCrossUserPermission(userId); 5002 if (!mHasFeature) { 5003 return null; 5004 } 5005 synchronized (this) { 5006 DevicePolicyData policy = getUserData(userId); 5007 final int N = policy.mAdminList.size(); 5008 HashSet<String> resultSet = new HashSet<String>(); 5009 for (int i = 0; i < N; i++) { 5010 ActiveAdmin admin = policy.mAdminList.get(i); 5011 resultSet.addAll(admin.accountTypesWithManagementDisabled); 5012 } 5013 return resultSet.toArray(new String[resultSet.size()]); 5014 } 5015 } 5016 5017 @Override 5018 public void setUninstallBlocked(ComponentName who, String packageName, 5019 boolean uninstallBlocked) { 5020 final int userId = UserHandle.getCallingUserId(); 5021 5022 synchronized (this) { 5023 if (who == null) { 5024 throw new NullPointerException("ComponentName is null"); 5025 } 5026 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5027 5028 long id = Binder.clearCallingIdentity(); 5029 try { 5030 IPackageManager pm = AppGlobals.getPackageManager(); 5031 pm.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 5032 } catch (RemoteException re) { 5033 // Shouldn't happen. 5034 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 5035 } finally { 5036 restoreCallingIdentity(id); 5037 } 5038 } 5039 } 5040 5041 @Override 5042 public boolean isUninstallBlocked(ComponentName who, String packageName) { 5043 // This function should return true if and only if the package is blocked by 5044 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 5045 // when the package is a system app, or when it is an active device admin. 5046 final int userId = UserHandle.getCallingUserId(); 5047 5048 synchronized (this) { 5049 if (who != null) { 5050 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5051 } 5052 5053 long id = Binder.clearCallingIdentity(); 5054 try { 5055 IPackageManager pm = AppGlobals.getPackageManager(); 5056 return pm.getBlockUninstallForUser(packageName, userId); 5057 } catch (RemoteException re) { 5058 // Shouldn't happen. 5059 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 5060 } finally { 5061 restoreCallingIdentity(id); 5062 } 5063 } 5064 return false; 5065 } 5066 5067 @Override 5068 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 5069 if (!mHasFeature) { 5070 return; 5071 } 5072 synchronized (this) { 5073 if (who == null) { 5074 throw new NullPointerException("ComponentName is null"); 5075 } 5076 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5077 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5078 if (admin.disableCallerId != disabled) { 5079 admin.disableCallerId = disabled; 5080 saveSettingsLocked(UserHandle.getCallingUserId()); 5081 } 5082 } 5083 } 5084 5085 @Override 5086 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 5087 if (!mHasFeature) { 5088 return false; 5089 } 5090 5091 synchronized (this) { 5092 if (who == null) { 5093 throw new NullPointerException("ComponentName is null"); 5094 } 5095 5096 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5097 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5098 return admin.disableCallerId; 5099 } 5100 } 5101 5102 @Override 5103 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 5104 // TODO: Should there be a check to make sure this relationship is within a profile group? 5105 //enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 5106 synchronized (this) { 5107 ActiveAdmin admin = getProfileOwnerAdmin(userId); 5108 return (admin != null) ? admin.disableCallerId : false; 5109 } 5110 } 5111 5112 /** 5113 * Sets which packages may enter lock task mode. 5114 * 5115 * This function can only be called by the device owner. 5116 * @param components The list of components allowed to enter lock task mode. 5117 */ 5118 public void setLockTaskPackages(ComponentName who, String[] packages) throws SecurityException { 5119 synchronized (this) { 5120 if (who == null) { 5121 throw new NullPointerException("ComponentName is null"); 5122 } 5123 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5124 5125 int userHandle = Binder.getCallingUserHandle().getIdentifier(); 5126 DevicePolicyData policy = getUserData(userHandle); 5127 policy.mLockTaskPackages.clear(); 5128 if (packages != null) { 5129 for (int j = 0; j < packages.length; j++) { 5130 String pkg = packages[j]; 5131 policy.mLockTaskPackages.add(pkg); 5132 } 5133 } 5134 5135 // Store the settings persistently. 5136 saveSettingsLocked(userHandle); 5137 } 5138 } 5139 5140 /** 5141 * This function returns the list of components allowed to start the task lock mode. 5142 */ 5143 public String[] getLockTaskPackages(ComponentName who) { 5144 synchronized (this) { 5145 if (who == null) { 5146 throw new NullPointerException("ComponentName is null"); 5147 } 5148 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5149 5150 int userHandle = Binder.getCallingUserHandle().getIdentifier(); 5151 DevicePolicyData policy = getUserData(userHandle); 5152 return policy.mLockTaskPackages.toArray(new String[0]); 5153 } 5154 } 5155 5156 /** 5157 * This function lets the caller know whether the given package is allowed to start the 5158 * lock task mode. 5159 * @param pkg The package to check 5160 */ 5161 public boolean isLockTaskPermitted(String pkg) { 5162 // Get current user's devicepolicy 5163 int uid = Binder.getCallingUid(); 5164 int userHandle = UserHandle.getUserId(uid); 5165 DevicePolicyData policy = getUserData(userHandle); 5166 synchronized (this) { 5167 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 5168 String lockTaskPackage = policy.mLockTaskPackages.get(i); 5169 5170 // If the given package equals one of the packages stored our list, 5171 // we allow this package to start lock task mode. 5172 if (lockTaskPackage.equals(pkg)) { 5173 return true; 5174 } 5175 } 5176 } 5177 return false; 5178 } 5179 5180 @Override 5181 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 5182 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 5183 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 5184 } 5185 synchronized (this) { 5186 final DevicePolicyData policy = getUserData(userHandle); 5187 Bundle adminExtras = new Bundle(); 5188 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 5189 for (ActiveAdmin admin : policy.mAdminList) { 5190 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 5191 boolean ownsProfile = (getProfileOwner(userHandle) != null 5192 && getProfileOwner(userHandle).equals(admin.info.getPackageName())); 5193 if (ownsDevice || ownsProfile) { 5194 if (isEnabled) { 5195 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 5196 adminExtras, null); 5197 } else { 5198 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 5199 } 5200 } 5201 } 5202 } 5203 } 5204 5205 @Override 5206 public void setGlobalSetting(ComponentName who, String setting, String value) { 5207 final ContentResolver contentResolver = mContext.getContentResolver(); 5208 5209 synchronized (this) { 5210 if (who == null) { 5211 throw new NullPointerException("ComponentName is null"); 5212 } 5213 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5214 5215 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 5216 throw new SecurityException(String.format( 5217 "Permission denial: device owners cannot update %1$s", setting)); 5218 } 5219 5220 long id = Binder.clearCallingIdentity(); 5221 try { 5222 Settings.Global.putString(contentResolver, setting, value); 5223 } finally { 5224 restoreCallingIdentity(id); 5225 } 5226 } 5227 } 5228 5229 @Override 5230 public void setSecureSetting(ComponentName who, String setting, String value) { 5231 int callingUserId = UserHandle.getCallingUserId(); 5232 final ContentResolver contentResolver = mContext.getContentResolver(); 5233 5234 synchronized (this) { 5235 if (who == null) { 5236 throw new NullPointerException("ComponentName is null"); 5237 } 5238 ActiveAdmin activeAdmin = 5239 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5240 5241 if (isDeviceOwner(activeAdmin.info.getPackageName())) { 5242 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 5243 throw new SecurityException(String.format( 5244 "Permission denial: Device owners cannot update %1$s", setting)); 5245 } 5246 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 5247 throw new SecurityException(String.format( 5248 "Permission denial: Profile owners cannot update %1$s", setting)); 5249 } 5250 5251 long id = Binder.clearCallingIdentity(); 5252 try { 5253 Settings.Secure.putStringForUser(contentResolver, setting, value, callingUserId); 5254 } finally { 5255 restoreCallingIdentity(id); 5256 } 5257 } 5258 } 5259 5260 @Override 5261 public void setMasterVolumeMuted(ComponentName who, boolean on) { 5262 final ContentResolver contentResolver = mContext.getContentResolver(); 5263 5264 synchronized (this) { 5265 if (who == null) { 5266 throw new NullPointerException("ComponentName is null"); 5267 } 5268 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5269 5270 IAudioService iAudioService = IAudioService.Stub.asInterface( 5271 ServiceManager.getService(Context.AUDIO_SERVICE)); 5272 try{ 5273 iAudioService.setMasterMute(on, 0, who.getPackageName(), null); 5274 } catch (RemoteException re) { 5275 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 5276 } 5277 } 5278 } 5279 5280 @Override 5281 public boolean isMasterVolumeMuted(ComponentName who) { 5282 final ContentResolver contentResolver = mContext.getContentResolver(); 5283 5284 synchronized (this) { 5285 if (who == null) { 5286 throw new NullPointerException("ComponentName is null"); 5287 } 5288 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5289 5290 AudioManager audioManager = 5291 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 5292 return audioManager.isMasterMute(); 5293 } 5294 } 5295 5296 /** 5297 * We need to update the internal state of whether a user has completed setup once. After 5298 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 5299 * as we don't trust any apps that might try to reset it. 5300 * <p> 5301 * Unfortunately, we don't know which user's setup state was changed, so we write all of 5302 * them. 5303 */ 5304 void updateUserSetupComplete() { 5305 List<UserInfo> users = mUserManager.getUsers(true); 5306 ContentResolver resolver = mContext.getContentResolver(); 5307 final int N = users.size(); 5308 for (int i = 0; i < N; i++) { 5309 int userHandle = users.get(i).id; 5310 if (Settings.Secure.getIntForUser(resolver, Settings.Secure.USER_SETUP_COMPLETE, 0, 5311 userHandle) != 0) { 5312 DevicePolicyData policy = getUserData(userHandle); 5313 if (!policy.mUserSetupComplete) { 5314 policy.mUserSetupComplete = true; 5315 synchronized (this) { 5316 saveSettingsLocked(userHandle); 5317 } 5318 } 5319 } 5320 } 5321 } 5322 5323 private class SetupContentObserver extends ContentObserver { 5324 5325 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 5326 Settings.Secure.USER_SETUP_COMPLETE); 5327 5328 public SetupContentObserver(Handler handler) { 5329 super(handler); 5330 } 5331 5332 void register(ContentResolver resolver) { 5333 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 5334 } 5335 5336 @Override 5337 public void onChange(boolean selfChange, Uri uri) { 5338 if (mUserSetupComplete.equals(uri)) { 5339 updateUserSetupComplete(); 5340 } 5341 } 5342 } 5343 5344 private final class LocalService extends DevicePolicyManagerInternal { 5345 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 5346 5347 @Override 5348 public List<String> getCrossProfileWidgetProviders(int profileId) { 5349 synchronized (DevicePolicyManagerService.this) { 5350 if (mDeviceOwner == null) { 5351 return Collections.emptyList(); 5352 } 5353 ComponentName ownerComponent = mDeviceOwner.getProfileOwnerComponent(profileId); 5354 if (ownerComponent == null) { 5355 return Collections.emptyList(); 5356 } 5357 5358 DevicePolicyData policy = getUserData(profileId); 5359 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 5360 5361 if (admin == null || admin.crossProfileWidgetProviders == null 5362 || admin.crossProfileWidgetProviders.isEmpty()) { 5363 return Collections.emptyList(); 5364 } 5365 5366 return admin.crossProfileWidgetProviders; 5367 } 5368 } 5369 5370 @Override 5371 public void addOnCrossProfileWidgetProvidersChangeListener( 5372 OnCrossProfileWidgetProvidersChangeListener listener) { 5373 synchronized (DevicePolicyManagerService.this) { 5374 if (mWidgetProviderListeners == null) { 5375 mWidgetProviderListeners = new ArrayList<>(); 5376 } 5377 if (!mWidgetProviderListeners.contains(listener)) { 5378 mWidgetProviderListeners.add(listener); 5379 } 5380 } 5381 } 5382 5383 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 5384 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 5385 synchronized (DevicePolicyManagerService.this) { 5386 listeners = new ArrayList<>(mWidgetProviderListeners); 5387 } 5388 final int listenerCount = listeners.size(); 5389 for (int i = 0; i < listenerCount; i++) { 5390 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 5391 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 5392 } 5393 } 5394 } 5395} 5396