DevicePolicyManagerService.java revision 5ce1cb240b13db98fbdc21e1ef069b5f9cec8d72
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); 182 183 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new HashSet(); 184 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 185 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 186 187 GLOBAL_SETTINGS_WHITELIST = new HashSet(); 188 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 189 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 190 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 191 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.BLUETOOTH_ON); 192 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 193 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 194 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.MODE_RINGER); 195 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.NETWORK_PREFERENCE); 196 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 197 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_ON); 198 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 199 } 200 201 final Context mContext; 202 final UserManager mUserManager; 203 final PowerManager.WakeLock mWakeLock; 204 205 final LocalService mLocalService; 206 207 final PowerManager mPowerManager; 208 final PowerManagerInternal mPowerManagerInternal; 209 210 IWindowManager mIWindowManager; 211 NotificationManager mNotificationManager; 212 213 // Stores and loads state on device and profile owners. 214 private DeviceOwner mDeviceOwner; 215 216 /** 217 * Whether or not device admin feature is supported. If it isn't return defaults for all 218 * public methods. 219 */ 220 private boolean mHasFeature; 221 222 public static final class Lifecycle extends SystemService { 223 private DevicePolicyManagerService mService; 224 225 public Lifecycle(Context context) { 226 super(context); 227 mService = new DevicePolicyManagerService(context); 228 } 229 230 @Override 231 public void onStart() { 232 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 233 } 234 235 @Override 236 public void onBootPhase(int phase) { 237 if (phase == PHASE_LOCK_SETTINGS_READY) { 238 mService.systemReady(); 239 } 240 } 241 } 242 243 public static class DevicePolicyData { 244 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 245 int mActivePasswordLength = 0; 246 int mActivePasswordUpperCase = 0; 247 int mActivePasswordLowerCase = 0; 248 int mActivePasswordLetters = 0; 249 int mActivePasswordNumeric = 0; 250 int mActivePasswordSymbols = 0; 251 int mActivePasswordNonLetter = 0; 252 int mFailedPasswordAttempts = 0; 253 254 int mUserHandle; 255 int mPasswordOwner = -1; 256 long mLastMaximumTimeToLock = -1; 257 boolean mUserSetupComplete = false; 258 259 final HashMap<ComponentName, ActiveAdmin> mAdminMap 260 = new HashMap<ComponentName, ActiveAdmin>(); 261 final ArrayList<ActiveAdmin> mAdminList 262 = new ArrayList<ActiveAdmin>(); 263 264 // This is the list of component allowed to start lock task mode. 265 final List<String> mLockTaskPackages = new ArrayList<String>(); 266 267 ComponentName mRestrictionsProvider; 268 269 public DevicePolicyData(int userHandle) { 270 mUserHandle = userHandle; 271 } 272 } 273 274 final SparseArray<DevicePolicyData> mUserData = new SparseArray<DevicePolicyData>(); 275 276 Handler mHandler = new Handler(); 277 278 BroadcastReceiver mReceiver = new BroadcastReceiver() { 279 @Override 280 public void onReceive(Context context, Intent intent) { 281 final String action = intent.getAction(); 282 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 283 getSendingUserId()); 284 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 285 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 286 if (DBG) Slog.v(LOG_TAG, "Sending password expiration notifications for action " 287 + action + " for user " + userHandle); 288 mHandler.post(new Runnable() { 289 public void run() { 290 handlePasswordExpirationNotification(userHandle); 291 } 292 }); 293 } 294 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 295 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 296 new MonitoringCertNotificationTask().execute(intent); 297 } 298 if (Intent.ACTION_USER_REMOVED.equals(action)) { 299 removeUserData(userHandle); 300 } else if (Intent.ACTION_USER_STARTED.equals(action) 301 || Intent.ACTION_PACKAGE_CHANGED.equals(action) 302 || Intent.ACTION_PACKAGE_REMOVED.equals(action) 303 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 304 305 if (Intent.ACTION_USER_STARTED.equals(action)) { 306 // Reset the policy data 307 synchronized (DevicePolicyManagerService.this) { 308 mUserData.remove(userHandle); 309 } 310 } 311 312 handlePackagesChanged(userHandle); 313 } 314 } 315 }; 316 317 static class ActiveAdmin { 318 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 319 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 320 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 321 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 322 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 323 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 324 private static final String TAG_ACCOUNT_TYPE = "account-type"; 325 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 326 = "permitted-accessiblity-services"; 327 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 328 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 329 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 330 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 331 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 332 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 333 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 334 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 335 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 336 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 337 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 338 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 339 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 340 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 341 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 342 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 343 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 344 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 345 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 346 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 347 private static final String ATTR_VALUE = "value"; 348 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 349 private static final String TAG_POLICIES = "policies"; 350 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 351 "cross-profile-widget-providers"; 352 private static final String TAG_PROVIDER = "provider"; 353 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 354 355 final DeviceAdminInfo info; 356 357 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 358 359 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 360 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 361 362 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 363 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 364 365 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 366 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 367 368 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 369 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 370 371 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 372 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 373 374 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 375 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 376 377 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 378 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 379 380 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 381 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 382 383 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 384 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 385 386 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 387 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 388 389 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 390 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 391 392 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 393 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 394 395 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 396 397 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 398 399 boolean encryptionRequested = false; 400 boolean disableCamera = false; 401 boolean disableCallerId = false; 402 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 403 boolean requireAutoTime = false; // Can only be set by a device owner. 404 405 static class TrustAgentInfo { 406 public PersistableBundle options; 407 TrustAgentInfo(PersistableBundle bundle) { 408 options = bundle; 409 } 410 } 411 412 Set<String> accountTypesWithManagementDisabled = new HashSet<String>(); 413 414 // The list of permitted accessibility services package namesas set by a profile 415 // or device owner. Null means all accessibility services are allowed, empty means 416 // none except system services are allowed. 417 List<String> permittedAccessiblityServices; 418 419 // The list of permitted input methods package names as set by a profile or device owner. 420 // Null means all input methods are allowed, empty means none except system imes are 421 // allowed. 422 List<String> permittedInputMethods; 423 424 // TODO: review implementation decisions with frameworks team 425 boolean specifiesGlobalProxy = false; 426 String globalProxySpec = null; 427 String globalProxyExclusionList = null; 428 429 HashMap<String, TrustAgentInfo> trustAgentInfos = new HashMap<String, TrustAgentInfo>(); 430 431 List<String> crossProfileWidgetProviders; 432 433 ActiveAdmin(DeviceAdminInfo _info) { 434 info = _info; 435 } 436 437 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 438 439 public UserHandle getUserHandle() { 440 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 441 } 442 443 void writeToXml(XmlSerializer out) 444 throws IllegalArgumentException, IllegalStateException, IOException { 445 out.startTag(null, TAG_POLICIES); 446 info.writePoliciesToXml(out); 447 out.endTag(null, TAG_POLICIES); 448 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 449 out.startTag(null, TAG_PASSWORD_QUALITY); 450 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 451 out.endTag(null, TAG_PASSWORD_QUALITY); 452 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 453 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 454 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 455 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 456 } 457 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 458 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 459 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 460 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 461 } 462 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 463 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 464 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 465 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 466 } 467 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 468 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 469 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 470 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 471 } 472 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 473 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 474 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 475 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 476 } 477 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 478 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 479 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 480 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 481 } 482 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 483 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 484 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 485 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 486 } 487 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 488 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 489 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 490 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 491 } 492 } 493 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 494 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 495 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 496 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 497 } 498 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 499 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 500 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 501 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 502 } 503 if (specifiesGlobalProxy) { 504 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 505 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 506 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 507 if (globalProxySpec != null) { 508 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 509 out.attribute(null, ATTR_VALUE, globalProxySpec); 510 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 511 } 512 if (globalProxyExclusionList != null) { 513 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 514 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 515 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 516 } 517 } 518 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 519 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 520 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 521 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 522 } 523 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 524 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 525 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 526 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 527 } 528 if (encryptionRequested) { 529 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 530 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 531 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 532 } 533 if (disableCamera) { 534 out.startTag(null, TAG_DISABLE_CAMERA); 535 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 536 out.endTag(null, TAG_DISABLE_CAMERA); 537 } 538 if (disableCallerId) { 539 out.startTag(null, TAG_DISABLE_CALLER_ID); 540 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 541 out.endTag(null, TAG_DISABLE_CALLER_ID); 542 } 543 if (disableScreenCapture) { 544 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 545 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 546 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 547 } 548 if (requireAutoTime) { 549 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 550 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 551 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 552 } 553 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 554 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 555 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 556 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 557 } 558 if (!accountTypesWithManagementDisabled.isEmpty()) { 559 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 560 for (String ac : accountTypesWithManagementDisabled) { 561 out.startTag(null, TAG_ACCOUNT_TYPE); 562 out.attribute(null, ATTR_VALUE, ac); 563 out.endTag(null, TAG_ACCOUNT_TYPE); 564 } 565 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 566 } 567 if (!trustAgentInfos.isEmpty()) { 568 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 569 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 570 for (Entry<String, TrustAgentInfo> entry : set) { 571 TrustAgentInfo trustAgentInfo = entry.getValue(); 572 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 573 out.attribute(null, ATTR_VALUE, entry.getKey()); 574 if (trustAgentInfo.options != null) { 575 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 576 try { 577 trustAgentInfo.options.saveToXml(out); 578 } catch (XmlPullParserException e) { 579 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 580 } 581 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 582 } 583 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 584 } 585 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 586 } 587 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 588 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 589 final int providerCount = crossProfileWidgetProviders.size(); 590 for (int i = 0; i < providerCount; i++) { 591 String provider = crossProfileWidgetProviders.get(i); 592 out.startTag(null, TAG_PROVIDER); 593 out.attribute(null, ATTR_VALUE, provider); 594 out.endTag(null, TAG_PROVIDER); 595 } 596 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 597 } 598 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 599 permittedAccessiblityServices); 600 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 601 } 602 603 void writePackageListToXml(XmlSerializer out, String outerTag, 604 List<String> packageList) 605 throws IllegalArgumentException, IllegalStateException, IOException { 606 if (packageList == null) { 607 return; 608 } 609 610 out.startTag(null, outerTag); 611 for (String packageName : packageList) { 612 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 613 out.attribute(null, ATTR_VALUE, packageName); 614 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 615 } 616 out.endTag(null, outerTag); 617 } 618 619 void readFromXml(XmlPullParser parser) 620 throws XmlPullParserException, IOException { 621 int outerDepth = parser.getDepth(); 622 int type; 623 while ((type=parser.next()) != END_DOCUMENT 624 && (type != END_TAG || parser.getDepth() > outerDepth)) { 625 if (type == END_TAG || type == TEXT) { 626 continue; 627 } 628 String tag = parser.getName(); 629 if (TAG_POLICIES.equals(tag)) { 630 info.readPoliciesFromXml(parser); 631 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 632 passwordQuality = Integer.parseInt( 633 parser.getAttributeValue(null, ATTR_VALUE)); 634 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 635 minimumPasswordLength = Integer.parseInt( 636 parser.getAttributeValue(null, ATTR_VALUE)); 637 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 638 passwordHistoryLength = Integer.parseInt( 639 parser.getAttributeValue(null, ATTR_VALUE)); 640 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 641 minimumPasswordUpperCase = Integer.parseInt( 642 parser.getAttributeValue(null, ATTR_VALUE)); 643 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 644 minimumPasswordLowerCase = Integer.parseInt( 645 parser.getAttributeValue(null, ATTR_VALUE)); 646 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 647 minimumPasswordLetters = Integer.parseInt( 648 parser.getAttributeValue(null, ATTR_VALUE)); 649 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 650 minimumPasswordNumeric = Integer.parseInt( 651 parser.getAttributeValue(null, ATTR_VALUE)); 652 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 653 minimumPasswordSymbols = Integer.parseInt( 654 parser.getAttributeValue(null, ATTR_VALUE)); 655 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 656 minimumPasswordNonLetter = Integer.parseInt( 657 parser.getAttributeValue(null, ATTR_VALUE)); 658 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 659 maximumTimeToUnlock = Long.parseLong( 660 parser.getAttributeValue(null, ATTR_VALUE)); 661 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 662 maximumFailedPasswordsForWipe = Integer.parseInt( 663 parser.getAttributeValue(null, ATTR_VALUE)); 664 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 665 specifiesGlobalProxy = Boolean.parseBoolean( 666 parser.getAttributeValue(null, ATTR_VALUE)); 667 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 668 globalProxySpec = 669 parser.getAttributeValue(null, ATTR_VALUE); 670 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 671 globalProxyExclusionList = 672 parser.getAttributeValue(null, ATTR_VALUE); 673 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 674 passwordExpirationTimeout = Long.parseLong( 675 parser.getAttributeValue(null, ATTR_VALUE)); 676 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 677 passwordExpirationDate = Long.parseLong( 678 parser.getAttributeValue(null, ATTR_VALUE)); 679 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 680 encryptionRequested = Boolean.parseBoolean( 681 parser.getAttributeValue(null, ATTR_VALUE)); 682 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 683 disableCamera = Boolean.parseBoolean( 684 parser.getAttributeValue(null, ATTR_VALUE)); 685 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 686 disableCallerId = Boolean.parseBoolean( 687 parser.getAttributeValue(null, ATTR_VALUE)); 688 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 689 disableScreenCapture = Boolean.parseBoolean( 690 parser.getAttributeValue(null, ATTR_VALUE)); 691 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 692 requireAutoTime= Boolean.parseBoolean( 693 parser.getAttributeValue(null, ATTR_VALUE)); 694 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 695 disabledKeyguardFeatures = Integer.parseInt( 696 parser.getAttributeValue(null, ATTR_VALUE)); 697 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 698 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 699 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 700 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 701 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 702 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 703 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 704 permittedAccessiblityServices = readPackageList(parser, tag); 705 } else if (TAG_PERMITTED_IMES.equals(tag)) { 706 permittedInputMethods = readPackageList(parser, tag); 707 } else { 708 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 709 } 710 XmlUtils.skipCurrentTag(parser); 711 } 712 } 713 714 private List<String> readPackageList(XmlPullParser parser, 715 String tag) throws XmlPullParserException, IOException { 716 List<String> result = new ArrayList<String>(); 717 int outerDepth = parser.getDepth(); 718 int outerType; 719 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 720 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 721 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 722 continue; 723 } 724 String outerTag = parser.getName(); 725 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 726 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 727 if (packageName != null) { 728 result.add(packageName); 729 } else { 730 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 731 } 732 } else { 733 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 734 } 735 } 736 return result; 737 } 738 739 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 740 throws XmlPullParserException, IOException { 741 int outerDepthDAM = parser.getDepth(); 742 int typeDAM; 743 Set<String> result = new HashSet<String>(); 744 while ((typeDAM=parser.next()) != END_DOCUMENT 745 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 746 if (typeDAM == END_TAG || typeDAM == TEXT) { 747 continue; 748 } 749 String tagDAM = parser.getName(); 750 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 751 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 752 } else { 753 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 754 } 755 } 756 return result; 757 } 758 759 private HashMap<String, TrustAgentInfo> getAllTrustAgentInfos( 760 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 761 int outerDepthDAM = parser.getDepth(); 762 int typeDAM; 763 HashMap<String, TrustAgentInfo> result = new HashMap<String, TrustAgentInfo>(); 764 while ((typeDAM=parser.next()) != END_DOCUMENT 765 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 766 if (typeDAM == END_TAG || typeDAM == TEXT) { 767 continue; 768 } 769 String tagDAM = parser.getName(); 770 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 771 final String component = parser.getAttributeValue(null, ATTR_VALUE); 772 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 773 result.put(component, trustAgentInfo); 774 } else { 775 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 776 } 777 } 778 return result; 779 } 780 781 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 782 throws XmlPullParserException, IOException { 783 int outerDepthDAM = parser.getDepth(); 784 int typeDAM; 785 TrustAgentInfo result = new TrustAgentInfo(null); 786 while ((typeDAM=parser.next()) != END_DOCUMENT 787 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 788 if (typeDAM == END_TAG || typeDAM == TEXT) { 789 continue; 790 } 791 String tagDAM = parser.getName(); 792 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 793 PersistableBundle bundle = new PersistableBundle(); 794 bundle.restoreFromXml(parser); 795 result.options = bundle; 796 } else { 797 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 798 } 799 } 800 return result; 801 } 802 803 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 804 throws XmlPullParserException, IOException { 805 int outerDepthDAM = parser.getDepth(); 806 int typeDAM; 807 ArrayList<String> result = null; 808 while ((typeDAM=parser.next()) != END_DOCUMENT 809 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 810 if (typeDAM == END_TAG || typeDAM == TEXT) { 811 continue; 812 } 813 String tagDAM = parser.getName(); 814 if (TAG_PROVIDER.equals(tagDAM)) { 815 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 816 if (result == null) { 817 result = new ArrayList<>(); 818 } 819 result.add(provider); 820 } else { 821 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 822 } 823 } 824 return result; 825 } 826 827 void dump(String prefix, PrintWriter pw) { 828 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 829 pw.print(prefix); pw.println("policies:"); 830 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 831 if (pols != null) { 832 for (int i=0; i<pols.size(); i++) { 833 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 834 } 835 } 836 pw.print(prefix); pw.print("passwordQuality=0x"); 837 pw.println(Integer.toHexString(passwordQuality)); 838 pw.print(prefix); pw.print("minimumPasswordLength="); 839 pw.println(minimumPasswordLength); 840 pw.print(prefix); pw.print("passwordHistoryLength="); 841 pw.println(passwordHistoryLength); 842 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 843 pw.println(minimumPasswordUpperCase); 844 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 845 pw.println(minimumPasswordLowerCase); 846 pw.print(prefix); pw.print("minimumPasswordLetters="); 847 pw.println(minimumPasswordLetters); 848 pw.print(prefix); pw.print("minimumPasswordNumeric="); 849 pw.println(minimumPasswordNumeric); 850 pw.print(prefix); pw.print("minimumPasswordSymbols="); 851 pw.println(minimumPasswordSymbols); 852 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 853 pw.println(minimumPasswordNonLetter); 854 pw.print(prefix); pw.print("maximumTimeToUnlock="); 855 pw.println(maximumTimeToUnlock); 856 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 857 pw.println(maximumFailedPasswordsForWipe); 858 pw.print(prefix); pw.print("specifiesGlobalProxy="); 859 pw.println(specifiesGlobalProxy); 860 pw.print(prefix); pw.print("passwordExpirationTimeout="); 861 pw.println(passwordExpirationTimeout); 862 pw.print(prefix); pw.print("passwordExpirationDate="); 863 pw.println(passwordExpirationDate); 864 if (globalProxySpec != null) { 865 pw.print(prefix); pw.print("globalProxySpec="); 866 pw.println(globalProxySpec); 867 } 868 if (globalProxyExclusionList != null) { 869 pw.print(prefix); pw.print("globalProxyEclusionList="); 870 pw.println(globalProxyExclusionList); 871 } 872 pw.print(prefix); pw.print("encryptionRequested="); 873 pw.println(encryptionRequested); 874 pw.print(prefix); pw.print("disableCamera="); 875 pw.println(disableCamera); 876 pw.print(prefix); pw.print("disableCallerId="); 877 pw.println(disableCallerId); 878 pw.print(prefix); pw.print("disableScreenCapture="); 879 pw.println(disableScreenCapture); 880 pw.print(prefix); pw.print("requireAutoTime="); 881 pw.println(requireAutoTime); 882 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 883 pw.println(disabledKeyguardFeatures); 884 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 885 pw.println(crossProfileWidgetProviders); 886 if (!(permittedAccessiblityServices == null)) { 887 pw.print(prefix); pw.print("permittedAccessibilityServices="); 888 pw.println(permittedAccessiblityServices.toString()); 889 } 890 if (!(permittedInputMethods == null)) { 891 pw.print(prefix); pw.print("permittedInputMethods="); 892 pw.println(permittedInputMethods.toString()); 893 } 894 } 895 } 896 897 private void handlePackagesChanged(int userHandle) { 898 boolean removed = false; 899 if (DBG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 900 DevicePolicyData policy = getUserData(userHandle); 901 IPackageManager pm = AppGlobals.getPackageManager(); 902 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 903 ActiveAdmin aa = policy.mAdminList.get(i); 904 try { 905 if (pm.getPackageInfo(aa.info.getPackageName(), 0, userHandle) == null 906 || pm.getReceiverInfo(aa.info.getComponent(), 0, userHandle) == null) { 907 removed = true; 908 policy.mAdminList.remove(i); 909 policy.mAdminMap.remove(aa.info.getComponent()); 910 } 911 } catch (RemoteException re) { 912 // Shouldn't happen 913 } 914 } 915 if (removed) { 916 validatePasswordOwnerLocked(policy); 917 syncDeviceCapabilitiesLocked(policy); 918 saveSettingsLocked(policy.mUserHandle); 919 } 920 } 921 922 /** 923 * Instantiates the service. 924 */ 925 public DevicePolicyManagerService(Context context) { 926 mContext = context; 927 mUserManager = UserManager.get(mContext); 928 mHasFeature = context.getPackageManager().hasSystemFeature( 929 PackageManager.FEATURE_DEVICE_ADMIN); 930 mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE); 931 mPowerManagerInternal = LocalServices.getService(PowerManagerInternal.class); 932 mWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "DPM"); 933 mLocalService = new LocalService(); 934 if (!mHasFeature) { 935 // Skip the rest of the initialization 936 return; 937 } 938 IntentFilter filter = new IntentFilter(); 939 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 940 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 941 filter.addAction(Intent.ACTION_USER_REMOVED); 942 filter.addAction(Intent.ACTION_USER_STARTED); 943 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 944 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 945 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 946 filter = new IntentFilter(); 947 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 948 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 949 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 950 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 951 filter.addDataScheme("package"); 952 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 953 954 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 955 } 956 957 /** 958 * Creates and loads the policy data from xml. 959 * @param userHandle the user for whom to load the policy data 960 * @return 961 */ 962 DevicePolicyData getUserData(int userHandle) { 963 synchronized (this) { 964 DevicePolicyData policy = mUserData.get(userHandle); 965 if (policy == null) { 966 policy = new DevicePolicyData(userHandle); 967 mUserData.append(userHandle, policy); 968 loadSettingsLocked(policy, userHandle); 969 } 970 return policy; 971 } 972 } 973 974 void removeUserData(int userHandle) { 975 synchronized (this) { 976 if (userHandle == UserHandle.USER_OWNER) { 977 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 978 return; 979 } 980 if (mDeviceOwner != null) { 981 mDeviceOwner.removeProfileOwner(userHandle); 982 mDeviceOwner.writeOwnerFile(); 983 } 984 985 DevicePolicyData policy = mUserData.get(userHandle); 986 if (policy != null) { 987 mUserData.remove(userHandle); 988 } 989 File policyFile = new File(Environment.getUserSystemDirectory(userHandle), 990 DEVICE_POLICIES_XML); 991 policyFile.delete(); 992 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 993 } 994 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 995 } 996 997 void loadDeviceOwner() { 998 synchronized (this) { 999 mDeviceOwner = DeviceOwner.load(); 1000 } 1001 } 1002 1003 /** 1004 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1005 * reminders. Clears alarm if no expirations are configured. 1006 */ 1007 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1008 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1009 final long now = System.currentTimeMillis(); 1010 final long timeToExpire = expiration - now; 1011 final long alarmTime; 1012 if (expiration == 0) { 1013 // No expirations are currently configured: Cancel alarm. 1014 alarmTime = 0; 1015 } else if (timeToExpire <= 0) { 1016 // The password has already expired: Repeat every 24 hours. 1017 alarmTime = now + MS_PER_DAY; 1018 } else { 1019 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1020 // the expiration time. 1021 long alarmInterval = timeToExpire % MS_PER_DAY; 1022 if (alarmInterval == 0) { 1023 alarmInterval = MS_PER_DAY; 1024 } 1025 alarmTime = now + alarmInterval; 1026 } 1027 1028 long token = Binder.clearCallingIdentity(); 1029 try { 1030 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1031 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1032 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1033 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1034 new UserHandle(policy.mUserHandle)); 1035 am.cancel(pi); 1036 if (alarmTime != 0) { 1037 am.set(AlarmManager.RTC, alarmTime, pi); 1038 } 1039 } finally { 1040 Binder.restoreCallingIdentity(token); 1041 } 1042 } 1043 1044 private IWindowManager getWindowManager() { 1045 if (mIWindowManager == null) { 1046 IBinder b = ServiceManager.getService(Context.WINDOW_SERVICE); 1047 mIWindowManager = IWindowManager.Stub.asInterface(b); 1048 } 1049 return mIWindowManager; 1050 } 1051 1052 private NotificationManager getNotificationManager() { 1053 if (mNotificationManager == null) { 1054 mNotificationManager = 1055 (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE); 1056 } 1057 return mNotificationManager; 1058 } 1059 1060 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1061 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1062 if (admin != null 1063 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1064 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1065 return admin; 1066 } 1067 return null; 1068 } 1069 1070 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1071 throws SecurityException { 1072 final int callingUid = Binder.getCallingUid(); 1073 final int userHandle = UserHandle.getUserId(callingUid); 1074 final DevicePolicyData policy = getUserData(userHandle); 1075 1076 List<ActiveAdmin> candidates = new ArrayList<ActiveAdmin>(); 1077 1078 // Build a list of admins for this uid matching the given ComponentName 1079 if (who != null) { 1080 ActiveAdmin admin = policy.mAdminMap.get(who); 1081 if (admin == null) { 1082 throw new SecurityException("No active admin " + who); 1083 } 1084 if (admin.getUid() != callingUid) { 1085 throw new SecurityException("Admin " + who + " is not owned by uid " 1086 + Binder.getCallingUid()); 1087 } 1088 candidates.add(admin); 1089 } else { 1090 for (ActiveAdmin admin : policy.mAdminList) { 1091 if (admin.getUid() == callingUid) { 1092 candidates.add(admin); 1093 } 1094 } 1095 } 1096 1097 // Try to find an admin which can use reqPolicy 1098 for (ActiveAdmin admin : candidates) { 1099 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 1100 boolean ownsProfile = (getProfileOwner(userHandle) != null 1101 && getProfileOwner(userHandle).getPackageName() 1102 .equals(admin.info.getPackageName())); 1103 1104 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1105 if (ownsDevice) { 1106 return admin; 1107 } 1108 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1109 if (ownsDevice || ownsProfile) { 1110 return admin; 1111 } 1112 } else { 1113 if (admin.info.usesPolicy(reqPolicy)) { 1114 return admin; 1115 } 1116 } 1117 } 1118 1119 if (who != null) { 1120 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1121 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1122 + " does not own the device"); 1123 } 1124 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1125 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1126 + " does not own the profile"); 1127 } 1128 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1129 + " did not specify uses-policy for: " 1130 + candidates.get(0).info.getTagForPolicy(reqPolicy)); 1131 } else { 1132 throw new SecurityException("No active admin owned by uid " 1133 + Binder.getCallingUid() + " for policy #" + reqPolicy); 1134 } 1135 } 1136 1137 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1138 sendAdminCommandLocked(admin, action, null); 1139 } 1140 1141 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1142 sendAdminCommandLocked(admin, action, null, result); 1143 } 1144 1145 /** 1146 * Send an update to one specific admin, get notified when that admin returns a result. 1147 */ 1148 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1149 BroadcastReceiver result) { 1150 Intent intent = new Intent(action); 1151 intent.setComponent(admin.info.getComponent()); 1152 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1153 intent.putExtra("expiration", admin.passwordExpirationDate); 1154 } 1155 if (adminExtras != null) { 1156 intent.putExtras(adminExtras); 1157 } 1158 if (result != null) { 1159 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1160 null, result, mHandler, Activity.RESULT_OK, null, null); 1161 } else { 1162 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1163 } 1164 } 1165 1166 /** 1167 * Send an update to all admins of a user that enforce a specified policy. 1168 */ 1169 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1170 final DevicePolicyData policy = getUserData(userHandle); 1171 final int count = policy.mAdminList.size(); 1172 if (count > 0) { 1173 for (int i = 0; i < count; i++) { 1174 final ActiveAdmin admin = policy.mAdminList.get(i); 1175 if (admin.info.usesPolicy(reqPolicy)) { 1176 sendAdminCommandLocked(admin, action); 1177 } 1178 } 1179 } 1180 } 1181 1182 /** 1183 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1184 * enforce a specified policy. 1185 */ 1186 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1187 int userHandle) { 1188 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1189 for (UserInfo ui : profiles) { 1190 int id = ui.id; 1191 sendAdminCommandLocked(action, reqPolicy, id); 1192 } 1193 } 1194 1195 void removeActiveAdminLocked(final ComponentName adminReceiver, int userHandle) { 1196 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1197 if (admin != null) { 1198 sendAdminCommandLocked(admin, 1199 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1200 new BroadcastReceiver() { 1201 @Override 1202 public void onReceive(Context context, Intent intent) { 1203 synchronized (DevicePolicyManagerService.this) { 1204 int userHandle = admin.getUserHandle().getIdentifier(); 1205 DevicePolicyData policy = getUserData(userHandle); 1206 boolean doProxyCleanup = admin.info.usesPolicy( 1207 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1208 policy.mAdminList.remove(admin); 1209 policy.mAdminMap.remove(adminReceiver); 1210 validatePasswordOwnerLocked(policy); 1211 syncDeviceCapabilitiesLocked(policy); 1212 if (doProxyCleanup) { 1213 resetGlobalProxyLocked(getUserData(userHandle)); 1214 } 1215 saveSettingsLocked(userHandle); 1216 updateMaximumTimeToLockLocked(policy); 1217 } 1218 } 1219 }); 1220 } 1221 } 1222 1223 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) { 1224 if (!mHasFeature) { 1225 return null; 1226 } 1227 enforceCrossUserPermission(userHandle); 1228 Intent resolveIntent = new Intent(); 1229 resolveIntent.setComponent(adminName); 1230 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1231 resolveIntent, 1232 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1233 userHandle); 1234 if (infos == null || infos.size() <= 0) { 1235 throw new IllegalArgumentException("Unknown admin: " + adminName); 1236 } 1237 1238 try { 1239 return new DeviceAdminInfo(mContext, infos.get(0)); 1240 } catch (XmlPullParserException e) { 1241 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1242 e); 1243 return null; 1244 } catch (IOException e) { 1245 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1246 e); 1247 return null; 1248 } 1249 } 1250 1251 private static JournaledFile makeJournaledFile(int userHandle) { 1252 final String base = userHandle == 0 1253 ? "/data/system/" + DEVICE_POLICIES_XML 1254 : new File(Environment.getUserSystemDirectory(userHandle), DEVICE_POLICIES_XML) 1255 .getAbsolutePath(); 1256 return new JournaledFile(new File(base), new File(base + ".tmp")); 1257 } 1258 1259 private void saveSettingsLocked(int userHandle) { 1260 DevicePolicyData policy = getUserData(userHandle); 1261 JournaledFile journal = makeJournaledFile(userHandle); 1262 FileOutputStream stream = null; 1263 try { 1264 stream = new FileOutputStream(journal.chooseForWrite(), false); 1265 XmlSerializer out = new FastXmlSerializer(); 1266 out.setOutput(stream, "utf-8"); 1267 out.startDocument(null, true); 1268 1269 out.startTag(null, "policies"); 1270 if (policy.mRestrictionsProvider != null) { 1271 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1272 policy.mRestrictionsProvider.flattenToString()); 1273 } 1274 if (policy.mUserSetupComplete) { 1275 out.attribute(null, ATTR_SETUP_COMPLETE, 1276 Boolean.toString(true)); 1277 } 1278 1279 final int N = policy.mAdminList.size(); 1280 for (int i=0; i<N; i++) { 1281 ActiveAdmin ap = policy.mAdminList.get(i); 1282 if (ap != null) { 1283 out.startTag(null, "admin"); 1284 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1285 ap.writeToXml(out); 1286 out.endTag(null, "admin"); 1287 } 1288 } 1289 1290 if (policy.mPasswordOwner >= 0) { 1291 out.startTag(null, "password-owner"); 1292 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1293 out.endTag(null, "password-owner"); 1294 } 1295 1296 if (policy.mFailedPasswordAttempts != 0) { 1297 out.startTag(null, "failed-password-attempts"); 1298 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1299 out.endTag(null, "failed-password-attempts"); 1300 } 1301 1302 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1303 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1304 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1305 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1306 out.startTag(null, "active-password"); 1307 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1308 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1309 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1310 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1311 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1312 out.attribute(null, "numeric", Integer 1313 .toString(policy.mActivePasswordNumeric)); 1314 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1315 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1316 out.endTag(null, "active-password"); 1317 } 1318 1319 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1320 String component = policy.mLockTaskPackages.get(i); 1321 out.startTag(null, LOCK_TASK_COMPONENTS_XML); 1322 out.attribute(null, "name", component); 1323 out.endTag(null, LOCK_TASK_COMPONENTS_XML); 1324 } 1325 1326 out.endTag(null, "policies"); 1327 1328 out.endDocument(); 1329 stream.close(); 1330 journal.commit(); 1331 sendChangedNotification(userHandle); 1332 } catch (IOException e) { 1333 try { 1334 if (stream != null) { 1335 stream.close(); 1336 } 1337 } catch (IOException ex) { 1338 // Ignore 1339 } 1340 journal.rollback(); 1341 } 1342 } 1343 1344 private void sendChangedNotification(int userHandle) { 1345 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1346 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1347 long ident = Binder.clearCallingIdentity(); 1348 try { 1349 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1350 } finally { 1351 Binder.restoreCallingIdentity(ident); 1352 } 1353 } 1354 1355 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1356 JournaledFile journal = makeJournaledFile(userHandle); 1357 FileInputStream stream = null; 1358 File file = journal.chooseForRead(); 1359 try { 1360 stream = new FileInputStream(file); 1361 XmlPullParser parser = Xml.newPullParser(); 1362 parser.setInput(stream, null); 1363 1364 int type; 1365 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1366 && type != XmlPullParser.START_TAG) { 1367 } 1368 String tag = parser.getName(); 1369 if (!"policies".equals(tag)) { 1370 throw new XmlPullParserException( 1371 "Settings do not start with policies tag: found " + tag); 1372 } 1373 1374 // Extract the permission provider component name if available 1375 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1376 if (permissionProvider != null) { 1377 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1378 } 1379 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1380 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1381 policy.mUserSetupComplete = true; 1382 } 1383 1384 type = parser.next(); 1385 int outerDepth = parser.getDepth(); 1386 policy.mLockTaskPackages.clear(); 1387 policy.mAdminList.clear(); 1388 policy.mAdminMap.clear(); 1389 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1390 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1391 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1392 continue; 1393 } 1394 tag = parser.getName(); 1395 if ("admin".equals(tag)) { 1396 String name = parser.getAttributeValue(null, "name"); 1397 try { 1398 DeviceAdminInfo dai = findAdmin( 1399 ComponentName.unflattenFromString(name), userHandle); 1400 if (DBG && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1401 != userHandle)) { 1402 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1403 + dai.getActivityInfo().applicationInfo.uid + " for user " 1404 + userHandle); 1405 } 1406 if (dai != null) { 1407 ActiveAdmin ap = new ActiveAdmin(dai); 1408 ap.readFromXml(parser); 1409 policy.mAdminMap.put(ap.info.getComponent(), ap); 1410 } 1411 } catch (RuntimeException e) { 1412 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1413 } 1414 } else if ("failed-password-attempts".equals(tag)) { 1415 policy.mFailedPasswordAttempts = Integer.parseInt( 1416 parser.getAttributeValue(null, "value")); 1417 XmlUtils.skipCurrentTag(parser); 1418 } else if ("password-owner".equals(tag)) { 1419 policy.mPasswordOwner = Integer.parseInt( 1420 parser.getAttributeValue(null, "value")); 1421 XmlUtils.skipCurrentTag(parser); 1422 } else if ("active-password".equals(tag)) { 1423 policy.mActivePasswordQuality = Integer.parseInt( 1424 parser.getAttributeValue(null, "quality")); 1425 policy.mActivePasswordLength = Integer.parseInt( 1426 parser.getAttributeValue(null, "length")); 1427 policy.mActivePasswordUpperCase = Integer.parseInt( 1428 parser.getAttributeValue(null, "uppercase")); 1429 policy.mActivePasswordLowerCase = Integer.parseInt( 1430 parser.getAttributeValue(null, "lowercase")); 1431 policy.mActivePasswordLetters = Integer.parseInt( 1432 parser.getAttributeValue(null, "letters")); 1433 policy.mActivePasswordNumeric = Integer.parseInt( 1434 parser.getAttributeValue(null, "numeric")); 1435 policy.mActivePasswordSymbols = Integer.parseInt( 1436 parser.getAttributeValue(null, "symbols")); 1437 policy.mActivePasswordNonLetter = Integer.parseInt( 1438 parser.getAttributeValue(null, "nonletter")); 1439 XmlUtils.skipCurrentTag(parser); 1440 } else if (LOCK_TASK_COMPONENTS_XML.equals(tag)) { 1441 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 1442 XmlUtils.skipCurrentTag(parser); 1443 } else { 1444 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1445 XmlUtils.skipCurrentTag(parser); 1446 } 1447 } 1448 } catch (NullPointerException e) { 1449 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1450 } catch (NumberFormatException e) { 1451 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1452 } catch (XmlPullParserException e) { 1453 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1454 } catch (FileNotFoundException e) { 1455 // Don't be noisy, this is normal if we haven't defined any policies. 1456 } catch (IOException e) { 1457 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1458 } catch (IndexOutOfBoundsException e) { 1459 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1460 } 1461 try { 1462 if (stream != null) { 1463 stream.close(); 1464 } 1465 } catch (IOException e) { 1466 // Ignore 1467 } 1468 1469 // Generate a list of admins from the admin map 1470 policy.mAdminList.addAll(policy.mAdminMap.values()); 1471 1472 // Validate that what we stored for the password quality matches 1473 // sufficiently what is currently set. Note that this is only 1474 // a sanity check in case the two get out of sync; this should 1475 // never normally happen. 1476 LockPatternUtils utils = new LockPatternUtils(mContext); 1477 if (utils.getActivePasswordQuality() < policy.mActivePasswordQuality) { 1478 Slog.w(LOG_TAG, "Active password quality 0x" 1479 + Integer.toHexString(policy.mActivePasswordQuality) 1480 + " does not match actual quality 0x" 1481 + Integer.toHexString(utils.getActivePasswordQuality())); 1482 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1483 policy.mActivePasswordLength = 0; 1484 policy.mActivePasswordUpperCase = 0; 1485 policy.mActivePasswordLowerCase = 0; 1486 policy.mActivePasswordLetters = 0; 1487 policy.mActivePasswordNumeric = 0; 1488 policy.mActivePasswordSymbols = 0; 1489 policy.mActivePasswordNonLetter = 0; 1490 } 1491 1492 validatePasswordOwnerLocked(policy); 1493 syncDeviceCapabilitiesLocked(policy); 1494 updateMaximumTimeToLockLocked(policy); 1495 } 1496 1497 static void validateQualityConstant(int quality) { 1498 switch (quality) { 1499 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 1500 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 1501 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 1502 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 1503 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 1504 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 1505 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 1506 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 1507 return; 1508 } 1509 throw new IllegalArgumentException("Invalid quality constant: 0x" 1510 + Integer.toHexString(quality)); 1511 } 1512 1513 void validatePasswordOwnerLocked(DevicePolicyData policy) { 1514 if (policy.mPasswordOwner >= 0) { 1515 boolean haveOwner = false; 1516 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1517 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 1518 haveOwner = true; 1519 break; 1520 } 1521 } 1522 if (!haveOwner) { 1523 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 1524 + " no longer active; disabling"); 1525 policy.mPasswordOwner = -1; 1526 } 1527 } 1528 } 1529 1530 /** 1531 * Pushes down policy information to the system for any policies related to general device 1532 * capabilities that need to be enforced by lower level services (e.g. Camera services). 1533 */ 1534 void syncDeviceCapabilitiesLocked(DevicePolicyData policy) { 1535 // Ensure the status of the camera is synced down to the system. Interested native services 1536 // should monitor this value and act accordingly. 1537 boolean systemState = SystemProperties.getBoolean(SYSTEM_PROP_DISABLE_CAMERA, false); 1538 boolean cameraDisabled = getCameraDisabled(null, policy.mUserHandle); 1539 if (cameraDisabled != systemState) { 1540 long token = Binder.clearCallingIdentity(); 1541 try { 1542 String value = cameraDisabled ? "1" : "0"; 1543 if (DBG) Slog.v(LOG_TAG, "Change in camera state [" 1544 + SYSTEM_PROP_DISABLE_CAMERA + "] = " + value); 1545 SystemProperties.set(SYSTEM_PROP_DISABLE_CAMERA, value); 1546 } finally { 1547 Binder.restoreCallingIdentity(token); 1548 } 1549 } 1550 } 1551 1552 public void systemReady() { 1553 if (!mHasFeature) { 1554 return; 1555 } 1556 getUserData(UserHandle.USER_OWNER); 1557 loadDeviceOwner(); 1558 cleanUpOldUsers(); 1559 // Register an observer for watching for user setup complete. 1560 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 1561 // Initialize the user setup state, to handle the upgrade case. 1562 updateUserSetupComplete(); 1563 1564 // Update the screen capture disabled cache in the window manager 1565 List<UserInfo> users = mUserManager.getUsers(true); 1566 final int N = users.size(); 1567 for (int i = 0; i < N; i++) { 1568 int userHandle = users.get(i).id; 1569 updateScreenCaptureDisabledInWindowManager(userHandle, 1570 getScreenCaptureDisabled(null, userHandle)); 1571 } 1572 1573 } 1574 1575 private void cleanUpOldUsers() { 1576 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 1577 // before reboot 1578 Set<Integer> usersWithProfileOwners; 1579 Set<Integer> usersWithData; 1580 synchronized(this) { 1581 usersWithProfileOwners = mDeviceOwner != null 1582 ? mDeviceOwner.getProfileOwnerKeys() : new HashSet<Integer>(); 1583 usersWithData = new HashSet<Integer>(); 1584 for (int i = 0; i < mUserData.size(); i++) { 1585 usersWithData.add(mUserData.keyAt(i)); 1586 } 1587 } 1588 List<UserInfo> allUsers = mUserManager.getUsers(); 1589 1590 Set<Integer> deletedUsers = new HashSet<Integer>(); 1591 deletedUsers.addAll(usersWithProfileOwners); 1592 deletedUsers.addAll(usersWithData); 1593 for (UserInfo userInfo : allUsers) { 1594 deletedUsers.remove(userInfo.id); 1595 } 1596 for (Integer userId : deletedUsers) { 1597 removeUserData(userId); 1598 } 1599 } 1600 1601 private void handlePasswordExpirationNotification(int userHandle) { 1602 synchronized (this) { 1603 final long now = System.currentTimeMillis(); 1604 1605 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1606 for (UserInfo ui : profiles) { 1607 int profileUserHandle = ui.id; 1608 final DevicePolicyData policy = getUserData(profileUserHandle); 1609 final int count = policy.mAdminList.size(); 1610 if (count > 0) { 1611 for (int i = 0; i < count; i++) { 1612 final ActiveAdmin admin = policy.mAdminList.get(i); 1613 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 1614 && admin.passwordExpirationTimeout > 0L 1615 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 1616 && admin.passwordExpirationDate > 0L) { 1617 sendAdminCommandLocked(admin, 1618 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 1619 } 1620 } 1621 } 1622 } 1623 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 1624 } 1625 } 1626 1627 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 1628 @Override 1629 protected Void doInBackground(Intent... params) { 1630 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 1631 1632 if (userHandle == UserHandle.USER_ALL) { 1633 for (UserInfo userInfo : mUserManager.getUsers()) { 1634 manageNotification(userInfo.getUserHandle()); 1635 } 1636 } else { 1637 manageNotification(new UserHandle(userHandle)); 1638 } 1639 return null; 1640 } 1641 1642 private void manageNotification(UserHandle userHandle) { 1643 if (!mUserManager.isUserRunning(userHandle)) { 1644 return; 1645 } 1646 1647 boolean hasCert = false; 1648 final long id = Binder.clearCallingIdentity(); 1649 try { 1650 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 1651 try { 1652 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 1653 hasCert = true; 1654 } 1655 } catch (RemoteException e) { 1656 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 1657 } finally { 1658 kcs.close(); 1659 } 1660 } catch (InterruptedException e) { 1661 Thread.currentThread().interrupt(); 1662 } catch (RuntimeException e) { 1663 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 1664 } finally { 1665 Binder.restoreCallingIdentity(id); 1666 } 1667 if (!hasCert) { 1668 getNotificationManager().cancelAsUser( 1669 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 1670 return; 1671 } 1672 1673 int smallIconId; 1674 String contentText; 1675 final String ownerName = getDeviceOwnerName(); 1676 if (ownerName != null) { 1677 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 1678 smallIconId = R.drawable.stat_sys_certificate_info; 1679 } else { 1680 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 1681 smallIconId = android.R.drawable.stat_sys_warning; 1682 } 1683 1684 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 1685 dialogIntent.setFlags( 1686 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 1687 dialogIntent.setPackage("com.android.settings"); 1688 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 1689 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 1690 1691 final Context userContext; 1692 try { 1693 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 1694 } catch (PackageManager.NameNotFoundException e) { 1695 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 1696 return; 1697 } 1698 final Notification noti = new Notification.Builder(userContext) 1699 .setSmallIcon(smallIconId) 1700 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 1701 .setContentText(contentText) 1702 .setContentIntent(notifyIntent) 1703 .setPriority(Notification.PRIORITY_HIGH) 1704 .setShowWhen(false) 1705 .setColor(mContext.getResources().getColor( 1706 com.android.internal.R.color.system_notification_accent_color)) 1707 .build(); 1708 1709 getNotificationManager().notifyAsUser( 1710 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 1711 } 1712 } 1713 1714 /** 1715 * @param adminReceiver The admin to add 1716 * @param refreshing true = update an active admin, no error 1717 */ 1718 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 1719 if (!mHasFeature) { 1720 return; 1721 } 1722 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 1723 } 1724 1725 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 1726 Bundle onEnableData) { 1727 mContext.enforceCallingOrSelfPermission( 1728 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1729 enforceCrossUserPermission(userHandle); 1730 1731 DevicePolicyData policy = getUserData(userHandle); 1732 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle); 1733 if (info == null) { 1734 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 1735 } 1736 synchronized (this) { 1737 long ident = Binder.clearCallingIdentity(); 1738 try { 1739 if (!refreshing 1740 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 1741 throw new IllegalArgumentException("Admin is already added"); 1742 } 1743 ActiveAdmin newAdmin = new ActiveAdmin(info); 1744 policy.mAdminMap.put(adminReceiver, newAdmin); 1745 int replaceIndex = -1; 1746 final int N = policy.mAdminList.size(); 1747 for (int i=0; i < N; i++) { 1748 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 1749 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 1750 replaceIndex = i; 1751 break; 1752 } 1753 } 1754 if (replaceIndex == -1) { 1755 policy.mAdminList.add(newAdmin); 1756 enableIfNecessary(info.getPackageName(), userHandle); 1757 } else { 1758 policy.mAdminList.set(replaceIndex, newAdmin); 1759 } 1760 saveSettingsLocked(userHandle); 1761 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 1762 onEnableData, null); 1763 } finally { 1764 Binder.restoreCallingIdentity(ident); 1765 } 1766 } 1767 } 1768 1769 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 1770 if (!mHasFeature) { 1771 return false; 1772 } 1773 enforceCrossUserPermission(userHandle); 1774 synchronized (this) { 1775 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 1776 } 1777 } 1778 1779 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 1780 if (!mHasFeature) { 1781 return false; 1782 } 1783 enforceCrossUserPermission(userHandle); 1784 synchronized (this) { 1785 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1786 if (administrator == null) { 1787 throw new SecurityException("No active admin " + adminReceiver); 1788 } 1789 return administrator.info.usesPolicy(policyId); 1790 } 1791 } 1792 1793 @SuppressWarnings("unchecked") 1794 public List<ComponentName> getActiveAdmins(int userHandle) { 1795 if (!mHasFeature) { 1796 return Collections.EMPTY_LIST; 1797 } 1798 1799 enforceCrossUserPermission(userHandle); 1800 synchronized (this) { 1801 DevicePolicyData policy = getUserData(userHandle); 1802 final int N = policy.mAdminList.size(); 1803 if (N <= 0) { 1804 return null; 1805 } 1806 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 1807 for (int i=0; i<N; i++) { 1808 res.add(policy.mAdminList.get(i).info.getComponent()); 1809 } 1810 return res; 1811 } 1812 } 1813 1814 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 1815 if (!mHasFeature) { 1816 return false; 1817 } 1818 enforceCrossUserPermission(userHandle); 1819 synchronized (this) { 1820 DevicePolicyData policy = getUserData(userHandle); 1821 final int N = policy.mAdminList.size(); 1822 for (int i=0; i<N; i++) { 1823 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 1824 return true; 1825 } 1826 } 1827 return false; 1828 } 1829 } 1830 1831 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 1832 if (!mHasFeature) { 1833 return; 1834 } 1835 enforceCrossUserPermission(userHandle); 1836 synchronized (this) { 1837 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1838 if (admin == null) { 1839 return; 1840 } 1841 if (admin.getUid() != Binder.getCallingUid()) { 1842 // If trying to remove device owner, refuse when the caller is not the owner. 1843 if (isDeviceOwner(adminReceiver.getPackageName())) { 1844 return; 1845 } 1846 mContext.enforceCallingOrSelfPermission( 1847 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1848 } 1849 long ident = Binder.clearCallingIdentity(); 1850 try { 1851 removeActiveAdminLocked(adminReceiver, userHandle); 1852 } finally { 1853 Binder.restoreCallingIdentity(ident); 1854 } 1855 } 1856 } 1857 1858 public void setPasswordQuality(ComponentName who, int quality, int userHandle) { 1859 if (!mHasFeature) { 1860 return; 1861 } 1862 validateQualityConstant(quality); 1863 enforceCrossUserPermission(userHandle); 1864 1865 synchronized (this) { 1866 if (who == null) { 1867 throw new NullPointerException("ComponentName is null"); 1868 } 1869 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1870 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1871 if (ap.passwordQuality != quality) { 1872 ap.passwordQuality = quality; 1873 saveSettingsLocked(userHandle); 1874 } 1875 } 1876 } 1877 1878 public int getPasswordQuality(ComponentName who, int userHandle) { 1879 if (!mHasFeature) { 1880 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1881 } 1882 enforceCrossUserPermission(userHandle); 1883 synchronized (this) { 1884 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1885 1886 if (who != null) { 1887 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1888 return admin != null ? admin.passwordQuality : mode; 1889 } 1890 1891 // Return strictest policy for this user and profiles that are visible from this user. 1892 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1893 for (UserInfo userInfo : profiles) { 1894 DevicePolicyData policy = getUserData(userInfo.id); 1895 final int N = policy.mAdminList.size(); 1896 for (int i=0; i<N; i++) { 1897 ActiveAdmin admin = policy.mAdminList.get(i); 1898 if (mode < admin.passwordQuality) { 1899 mode = admin.passwordQuality; 1900 } 1901 } 1902 } 1903 return mode; 1904 } 1905 } 1906 1907 public void setPasswordMinimumLength(ComponentName who, int length, int userHandle) { 1908 if (!mHasFeature) { 1909 return; 1910 } 1911 enforceCrossUserPermission(userHandle); 1912 synchronized (this) { 1913 if (who == null) { 1914 throw new NullPointerException("ComponentName is null"); 1915 } 1916 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1917 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1918 if (ap.minimumPasswordLength != length) { 1919 ap.minimumPasswordLength = length; 1920 saveSettingsLocked(userHandle); 1921 } 1922 } 1923 } 1924 1925 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 1926 if (!mHasFeature) { 1927 return 0; 1928 } 1929 enforceCrossUserPermission(userHandle); 1930 synchronized (this) { 1931 int length = 0; 1932 1933 if (who != null) { 1934 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1935 return admin != null ? admin.minimumPasswordLength : length; 1936 } 1937 1938 // Return strictest policy for this user and profiles that are visible from this user. 1939 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1940 for (UserInfo userInfo : profiles) { 1941 DevicePolicyData policy = getUserData(userInfo.id); 1942 final int N = policy.mAdminList.size(); 1943 for (int i=0; i<N; i++) { 1944 ActiveAdmin admin = policy.mAdminList.get(i); 1945 if (length < admin.minimumPasswordLength) { 1946 length = admin.minimumPasswordLength; 1947 } 1948 } 1949 } 1950 return length; 1951 } 1952 } 1953 1954 public void setPasswordHistoryLength(ComponentName who, int length, int userHandle) { 1955 if (!mHasFeature) { 1956 return; 1957 } 1958 enforceCrossUserPermission(userHandle); 1959 synchronized (this) { 1960 if (who == null) { 1961 throw new NullPointerException("ComponentName is null"); 1962 } 1963 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1964 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1965 if (ap.passwordHistoryLength != length) { 1966 ap.passwordHistoryLength = length; 1967 saveSettingsLocked(userHandle); 1968 } 1969 } 1970 } 1971 1972 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 1973 if (!mHasFeature) { 1974 return 0; 1975 } 1976 enforceCrossUserPermission(userHandle); 1977 synchronized (this) { 1978 int length = 0; 1979 1980 if (who != null) { 1981 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1982 return admin != null ? admin.passwordHistoryLength : length; 1983 } 1984 1985 // Return strictest policy for this user and profiles that are visible from this user. 1986 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1987 for (UserInfo userInfo : profiles) { 1988 DevicePolicyData policy = getUserData(userInfo.id); 1989 final int N = policy.mAdminList.size(); 1990 for (int i = 0; i < N; i++) { 1991 ActiveAdmin admin = policy.mAdminList.get(i); 1992 if (length < admin.passwordHistoryLength) { 1993 length = admin.passwordHistoryLength; 1994 } 1995 } 1996 } 1997 return length; 1998 } 1999 } 2000 2001 public void setPasswordExpirationTimeout(ComponentName who, long timeout, int userHandle) { 2002 if (!mHasFeature) { 2003 return; 2004 } 2005 enforceCrossUserPermission(userHandle); 2006 synchronized (this) { 2007 if (who == null) { 2008 throw new NullPointerException("ComponentName is null"); 2009 } 2010 if (timeout < 0) { 2011 throw new IllegalArgumentException("Timeout must be >= 0 ms"); 2012 } 2013 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2014 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2015 // Calling this API automatically bumps the expiration date 2016 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2017 ap.passwordExpirationDate = expiration; 2018 ap.passwordExpirationTimeout = timeout; 2019 if (timeout > 0L) { 2020 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2021 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2022 .format(new Date(expiration))); 2023 } 2024 saveSettingsLocked(userHandle); 2025 // in case this is the first one 2026 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2027 } 2028 } 2029 2030 /** 2031 * Return a single admin's expiration cycle time, or the min of all cycle times. 2032 * Returns 0 if not configured. 2033 */ 2034 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2035 if (!mHasFeature) { 2036 return 0L; 2037 } 2038 enforceCrossUserPermission(userHandle); 2039 synchronized (this) { 2040 long timeout = 0L; 2041 2042 if (who != null) { 2043 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2044 return admin != null ? admin.passwordExpirationTimeout : timeout; 2045 } 2046 2047 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2048 for (UserInfo userInfo : profiles) { 2049 DevicePolicyData policy = getUserData(userInfo.id); 2050 final int N = policy.mAdminList.size(); 2051 for (int i = 0; i < N; i++) { 2052 ActiveAdmin admin = policy.mAdminList.get(i); 2053 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2054 && timeout > admin.passwordExpirationTimeout)) { 2055 timeout = admin.passwordExpirationTimeout; 2056 } 2057 } 2058 } 2059 return timeout; 2060 } 2061 } 2062 2063 @Override 2064 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2065 final int userId = UserHandle.getCallingUserId(); 2066 List<String> changedProviders = null; 2067 2068 synchronized (this) { 2069 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2070 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2071 if (activeAdmin.crossProfileWidgetProviders == null) { 2072 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2073 } 2074 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2075 if (!providers.contains(packageName)) { 2076 providers.add(packageName); 2077 changedProviders = new ArrayList<>(providers); 2078 saveSettingsLocked(userId); 2079 } 2080 } 2081 2082 if (changedProviders != null) { 2083 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2084 return true; 2085 } 2086 2087 return false; 2088 } 2089 2090 @Override 2091 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2092 final int userId = UserHandle.getCallingUserId(); 2093 List<String> changedProviders = null; 2094 2095 synchronized (this) { 2096 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2097 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2098 if (activeAdmin.crossProfileWidgetProviders == null) { 2099 return false; 2100 } 2101 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2102 if (providers.remove(packageName)) { 2103 changedProviders = new ArrayList<>(providers); 2104 saveSettingsLocked(userId); 2105 } 2106 } 2107 2108 if (changedProviders != null) { 2109 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2110 return true; 2111 } 2112 2113 return false; 2114 } 2115 2116 @Override 2117 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2118 synchronized (this) { 2119 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2120 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2121 if (activeAdmin.crossProfileWidgetProviders == null 2122 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2123 return null; 2124 } 2125 if (Binder.getCallingUid() == Process.myUid()) { 2126 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2127 } else { 2128 return activeAdmin.crossProfileWidgetProviders; 2129 } 2130 } 2131 } 2132 2133 /** 2134 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2135 * Returns 0 if not configured. 2136 */ 2137 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2138 long timeout = 0L; 2139 2140 if (who != null) { 2141 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2142 return admin != null ? admin.passwordExpirationDate : timeout; 2143 } 2144 2145 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2146 for (UserInfo userInfo : profiles) { 2147 DevicePolicyData policy = getUserData(userInfo.id); 2148 final int N = policy.mAdminList.size(); 2149 for (int i = 0; i < N; i++) { 2150 ActiveAdmin admin = policy.mAdminList.get(i); 2151 if (timeout == 0L || (admin.passwordExpirationDate != 0 2152 && timeout > admin.passwordExpirationDate)) { 2153 timeout = admin.passwordExpirationDate; 2154 } 2155 } 2156 } 2157 return timeout; 2158 } 2159 2160 public long getPasswordExpiration(ComponentName who, int userHandle) { 2161 if (!mHasFeature) { 2162 return 0L; 2163 } 2164 enforceCrossUserPermission(userHandle); 2165 synchronized (this) { 2166 return getPasswordExpirationLocked(who, userHandle); 2167 } 2168 } 2169 2170 public void setPasswordMinimumUpperCase(ComponentName who, int length, int userHandle) { 2171 if (!mHasFeature) { 2172 return; 2173 } 2174 enforceCrossUserPermission(userHandle); 2175 synchronized (this) { 2176 if (who == null) { 2177 throw new NullPointerException("ComponentName is null"); 2178 } 2179 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2180 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2181 if (ap.minimumPasswordUpperCase != length) { 2182 ap.minimumPasswordUpperCase = length; 2183 saveSettingsLocked(userHandle); 2184 } 2185 } 2186 } 2187 2188 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2189 if (!mHasFeature) { 2190 return 0; 2191 } 2192 enforceCrossUserPermission(userHandle); 2193 synchronized (this) { 2194 int length = 0; 2195 2196 if (who != null) { 2197 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2198 return admin != null ? admin.minimumPasswordUpperCase : length; 2199 } 2200 2201 // Return strictest policy for this user and profiles that are visible from this user. 2202 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2203 for (UserInfo userInfo : profiles) { 2204 DevicePolicyData policy = getUserData(userInfo.id); 2205 final int N = policy.mAdminList.size(); 2206 for (int i=0; i<N; i++) { 2207 ActiveAdmin admin = policy.mAdminList.get(i); 2208 if (length < admin.minimumPasswordUpperCase) { 2209 length = admin.minimumPasswordUpperCase; 2210 } 2211 } 2212 } 2213 return length; 2214 } 2215 } 2216 2217 public void setPasswordMinimumLowerCase(ComponentName who, int length, int userHandle) { 2218 enforceCrossUserPermission(userHandle); 2219 synchronized (this) { 2220 if (who == null) { 2221 throw new NullPointerException("ComponentName is null"); 2222 } 2223 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2224 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2225 if (ap.minimumPasswordLowerCase != length) { 2226 ap.minimumPasswordLowerCase = length; 2227 saveSettingsLocked(userHandle); 2228 } 2229 } 2230 } 2231 2232 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2233 if (!mHasFeature) { 2234 return 0; 2235 } 2236 enforceCrossUserPermission(userHandle); 2237 synchronized (this) { 2238 int length = 0; 2239 2240 if (who != null) { 2241 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2242 return admin != null ? admin.minimumPasswordLowerCase : length; 2243 } 2244 2245 // Return strictest policy for this user and profiles that are visible from this user. 2246 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2247 for (UserInfo userInfo : profiles) { 2248 DevicePolicyData policy = getUserData(userInfo.id); 2249 final int N = policy.mAdminList.size(); 2250 for (int i=0; i<N; i++) { 2251 ActiveAdmin admin = policy.mAdminList.get(i); 2252 if (length < admin.minimumPasswordLowerCase) { 2253 length = admin.minimumPasswordLowerCase; 2254 } 2255 } 2256 } 2257 return length; 2258 } 2259 } 2260 2261 public void setPasswordMinimumLetters(ComponentName who, int length, int userHandle) { 2262 if (!mHasFeature) { 2263 return; 2264 } 2265 enforceCrossUserPermission(userHandle); 2266 synchronized (this) { 2267 if (who == null) { 2268 throw new NullPointerException("ComponentName is null"); 2269 } 2270 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2271 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2272 if (ap.minimumPasswordLetters != length) { 2273 ap.minimumPasswordLetters = length; 2274 saveSettingsLocked(userHandle); 2275 } 2276 } 2277 } 2278 2279 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2280 if (!mHasFeature) { 2281 return 0; 2282 } 2283 enforceCrossUserPermission(userHandle); 2284 synchronized (this) { 2285 int length = 0; 2286 2287 if (who != null) { 2288 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2289 return admin != null ? admin.minimumPasswordLetters : length; 2290 } 2291 2292 // Return strictest policy for this user and profiles that are visible from this user. 2293 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2294 for (UserInfo userInfo : profiles) { 2295 DevicePolicyData policy = getUserData(userInfo.id); 2296 final int N = policy.mAdminList.size(); 2297 for (int i=0; i<N; i++) { 2298 ActiveAdmin admin = policy.mAdminList.get(i); 2299 if (length < admin.minimumPasswordLetters) { 2300 length = admin.minimumPasswordLetters; 2301 } 2302 } 2303 } 2304 return length; 2305 } 2306 } 2307 2308 public void setPasswordMinimumNumeric(ComponentName who, int length, int userHandle) { 2309 if (!mHasFeature) { 2310 return; 2311 } 2312 enforceCrossUserPermission(userHandle); 2313 synchronized (this) { 2314 if (who == null) { 2315 throw new NullPointerException("ComponentName is null"); 2316 } 2317 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2318 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2319 if (ap.minimumPasswordNumeric != length) { 2320 ap.minimumPasswordNumeric = length; 2321 saveSettingsLocked(userHandle); 2322 } 2323 } 2324 } 2325 2326 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2327 if (!mHasFeature) { 2328 return 0; 2329 } 2330 enforceCrossUserPermission(userHandle); 2331 synchronized (this) { 2332 int length = 0; 2333 2334 if (who != null) { 2335 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2336 return admin != null ? admin.minimumPasswordNumeric : length; 2337 } 2338 2339 // Return strictest policy for this user and profiles that are visible from this user. 2340 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2341 for (UserInfo userInfo : profiles) { 2342 DevicePolicyData policy = getUserData(userInfo.id); 2343 final int N = policy.mAdminList.size(); 2344 for (int i = 0; i < N; i++) { 2345 ActiveAdmin admin = policy.mAdminList.get(i); 2346 if (length < admin.minimumPasswordNumeric) { 2347 length = admin.minimumPasswordNumeric; 2348 } 2349 } 2350 } 2351 return length; 2352 } 2353 } 2354 2355 public void setPasswordMinimumSymbols(ComponentName who, int length, int userHandle) { 2356 if (!mHasFeature) { 2357 return; 2358 } 2359 enforceCrossUserPermission(userHandle); 2360 synchronized (this) { 2361 if (who == null) { 2362 throw new NullPointerException("ComponentName is null"); 2363 } 2364 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2365 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2366 if (ap.minimumPasswordSymbols != length) { 2367 ap.minimumPasswordSymbols = length; 2368 saveSettingsLocked(userHandle); 2369 } 2370 } 2371 } 2372 2373 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 2374 if (!mHasFeature) { 2375 return 0; 2376 } 2377 enforceCrossUserPermission(userHandle); 2378 synchronized (this) { 2379 int length = 0; 2380 2381 if (who != null) { 2382 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2383 return admin != null ? admin.minimumPasswordSymbols : length; 2384 } 2385 2386 // Return strictest policy for this user and profiles that are visible from this user. 2387 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2388 for (UserInfo userInfo : profiles) { 2389 DevicePolicyData policy = getUserData(userInfo.id); 2390 final int N = policy.mAdminList.size(); 2391 for (int i=0; i<N; i++) { 2392 ActiveAdmin admin = policy.mAdminList.get(i); 2393 if (length < admin.minimumPasswordSymbols) { 2394 length = admin.minimumPasswordSymbols; 2395 } 2396 } 2397 } 2398 return length; 2399 } 2400 } 2401 2402 public void setPasswordMinimumNonLetter(ComponentName who, int length, int userHandle) { 2403 if (!mHasFeature) { 2404 return; 2405 } 2406 enforceCrossUserPermission(userHandle); 2407 synchronized (this) { 2408 if (who == null) { 2409 throw new NullPointerException("ComponentName is null"); 2410 } 2411 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2412 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2413 if (ap.minimumPasswordNonLetter != length) { 2414 ap.minimumPasswordNonLetter = length; 2415 saveSettingsLocked(userHandle); 2416 } 2417 } 2418 } 2419 2420 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 2421 if (!mHasFeature) { 2422 return 0; 2423 } 2424 enforceCrossUserPermission(userHandle); 2425 synchronized (this) { 2426 int length = 0; 2427 2428 if (who != null) { 2429 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2430 return admin != null ? admin.minimumPasswordNonLetter : length; 2431 } 2432 2433 // Return strictest policy for this user and profiles that are visible from this user. 2434 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2435 for (UserInfo userInfo : profiles) { 2436 DevicePolicyData policy = getUserData(userInfo.id); 2437 final int N = policy.mAdminList.size(); 2438 for (int i=0; i<N; i++) { 2439 ActiveAdmin admin = policy.mAdminList.get(i); 2440 if (length < admin.minimumPasswordNonLetter) { 2441 length = admin.minimumPasswordNonLetter; 2442 } 2443 } 2444 } 2445 return length; 2446 } 2447 } 2448 2449 public boolean isActivePasswordSufficient(int userHandle) { 2450 if (!mHasFeature) { 2451 return true; 2452 } 2453 enforceCrossUserPermission(userHandle); 2454 2455 synchronized (this) { 2456 2457 // The active password is stored in the user that runs the launcher 2458 // If the user this is called from is part of a profile group, that is the parent 2459 // of the group. 2460 UserInfo parent = getProfileParent(userHandle); 2461 int id = parent == null ? userHandle : parent.id; 2462 DevicePolicyData policy = getUserData(id); 2463 2464 // This API can only be called by an active device admin, 2465 // so try to retrieve it to check that the caller is one. 2466 getActiveAdminForCallerLocked(null, 2467 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2468 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 2469 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 2470 return false; 2471 } 2472 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2473 return true; 2474 } 2475 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 2476 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 2477 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 2478 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 2479 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 2480 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 2481 } 2482 } 2483 2484 public int getCurrentFailedPasswordAttempts(int userHandle) { 2485 synchronized (this) { 2486 // This API can only be called by an active device admin, 2487 // so try to retrieve it to check that the caller is one. 2488 getActiveAdminForCallerLocked(null, 2489 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2490 2491 // The active password is stored in the parent. 2492 DevicePolicyData policy = getUserData(getProfileParent(userHandle).id); 2493 2494 return policy.mFailedPasswordAttempts; 2495 } 2496 } 2497 2498 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, int userHandle) { 2499 if (!mHasFeature) { 2500 return; 2501 } 2502 enforceCrossUserPermission(userHandle); 2503 synchronized (this) { 2504 if (who == null) { 2505 throw new NullPointerException("ComponentName is null"); 2506 } 2507 // This API can only be called by an active device admin, 2508 // so try to retrieve it to check that the caller is one. 2509 getActiveAdminForCallerLocked(who, 2510 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 2511 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2512 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2513 if (ap.maximumFailedPasswordsForWipe != num) { 2514 ap.maximumFailedPasswordsForWipe = num; 2515 saveSettingsLocked(userHandle); 2516 } 2517 } 2518 } 2519 2520 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 2521 if (!mHasFeature) { 2522 return 0; 2523 } 2524 enforceCrossUserPermission(userHandle); 2525 synchronized (this) { 2526 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 2527 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 2528 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 2529 } 2530 } 2531 2532 /** 2533 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 2534 * profiles that are visible from this user. If the policy for the primary and any other profile 2535 * are equal, it returns the admin for the primary profile. 2536 * Returns {@code null} if none of them have that policy set. 2537 */ 2538 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 2539 int count = 0; 2540 ActiveAdmin strictestAdmin = null; 2541 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 2542 DevicePolicyData policy = getUserData(userInfo.id); 2543 for (ActiveAdmin admin : policy.mAdminList) { 2544 if (admin.maximumFailedPasswordsForWipe == 2545 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 2546 continue; // No max number of failed passwords policy set for this profile. 2547 } 2548 2549 // We always favor the primary profile if several profiles have the same value set. 2550 if (count == 0 || 2551 count > admin.maximumFailedPasswordsForWipe || 2552 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 2553 count = admin.maximumFailedPasswordsForWipe; 2554 strictestAdmin = admin; 2555 } 2556 } 2557 } 2558 return strictestAdmin; 2559 } 2560 2561 public boolean resetPassword(String password, int flags, int userHandle) { 2562 if (!mHasFeature) { 2563 return false; 2564 } 2565 enforceCrossUserPermission(userHandle); 2566 enforceNotManagedProfile(userHandle, "reset the password"); 2567 2568 int quality; 2569 synchronized (this) { 2570 // This api can only be called by an active device admin, 2571 // so try to retrieve it to check that the caller is one. 2572 getActiveAdminForCallerLocked(null, 2573 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 2574 quality = getPasswordQuality(null, userHandle); 2575 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 2576 int realQuality = LockPatternUtils.computePasswordQuality(password); 2577 if (realQuality < quality 2578 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2579 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 2580 + Integer.toHexString(realQuality) 2581 + " does not meet required quality 0x" 2582 + Integer.toHexString(quality)); 2583 return false; 2584 } 2585 quality = Math.max(realQuality, quality); 2586 } 2587 int length = getPasswordMinimumLength(null, userHandle); 2588 if (password.length() < length) { 2589 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 2590 + " does not meet required length " + length); 2591 return false; 2592 } 2593 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2594 int letters = 0; 2595 int uppercase = 0; 2596 int lowercase = 0; 2597 int numbers = 0; 2598 int symbols = 0; 2599 int nonletter = 0; 2600 for (int i = 0; i < password.length(); i++) { 2601 char c = password.charAt(i); 2602 if (c >= 'A' && c <= 'Z') { 2603 letters++; 2604 uppercase++; 2605 } else if (c >= 'a' && c <= 'z') { 2606 letters++; 2607 lowercase++; 2608 } else if (c >= '0' && c <= '9') { 2609 numbers++; 2610 nonletter++; 2611 } else { 2612 symbols++; 2613 nonletter++; 2614 } 2615 } 2616 int neededLetters = getPasswordMinimumLetters(null, userHandle); 2617 if(letters < neededLetters) { 2618 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 2619 + " does not meet required number of letters " + neededLetters); 2620 return false; 2621 } 2622 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 2623 if (numbers < neededNumbers) { 2624 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 2625 + " does not meet required number of numerical digits " 2626 + neededNumbers); 2627 return false; 2628 } 2629 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 2630 if (lowercase < neededLowerCase) { 2631 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 2632 + " does not meet required number of lowercase letters " 2633 + neededLowerCase); 2634 return false; 2635 } 2636 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 2637 if (uppercase < neededUpperCase) { 2638 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 2639 + " does not meet required number of uppercase letters " 2640 + neededUpperCase); 2641 return false; 2642 } 2643 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 2644 if (symbols < neededSymbols) { 2645 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 2646 + " does not meet required number of special symbols " + neededSymbols); 2647 return false; 2648 } 2649 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 2650 if (nonletter < neededNonLetter) { 2651 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 2652 + " does not meet required number of non-letter characters " 2653 + neededNonLetter); 2654 return false; 2655 } 2656 } 2657 } 2658 2659 int callingUid = Binder.getCallingUid(); 2660 DevicePolicyData policy = getUserData(userHandle); 2661 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 2662 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 2663 return false; 2664 } 2665 2666 // Don't do this with the lock held, because it is going to call 2667 // back in to the service. 2668 long ident = Binder.clearCallingIdentity(); 2669 try { 2670 LockPatternUtils utils = new LockPatternUtils(mContext); 2671 utils.saveLockPassword(password, quality, false, userHandle); 2672 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 2673 if (requireEntry) { 2674 utils.requireCredentialEntry(UserHandle.USER_ALL); 2675 } 2676 synchronized (this) { 2677 int newOwner = requireEntry ? callingUid : -1; 2678 if (policy.mPasswordOwner != newOwner) { 2679 policy.mPasswordOwner = newOwner; 2680 saveSettingsLocked(userHandle); 2681 } 2682 } 2683 } finally { 2684 Binder.restoreCallingIdentity(ident); 2685 } 2686 2687 return true; 2688 } 2689 2690 public void setMaximumTimeToLock(ComponentName who, long timeMs, int userHandle) { 2691 if (!mHasFeature) { 2692 return; 2693 } 2694 enforceCrossUserPermission(userHandle); 2695 synchronized (this) { 2696 if (who == null) { 2697 throw new NullPointerException("ComponentName is null"); 2698 } 2699 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2700 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2701 if (ap.maximumTimeToUnlock != timeMs) { 2702 ap.maximumTimeToUnlock = timeMs; 2703 saveSettingsLocked(userHandle); 2704 updateMaximumTimeToLockLocked(getUserData(userHandle)); 2705 } 2706 } 2707 } 2708 2709 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 2710 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 2711 if (policy.mLastMaximumTimeToLock == timeMs) { 2712 return; 2713 } 2714 2715 long ident = Binder.clearCallingIdentity(); 2716 try { 2717 if (timeMs <= 0) { 2718 timeMs = Integer.MAX_VALUE; 2719 } else { 2720 // Make sure KEEP_SCREEN_ON is disabled, since that 2721 // would allow bypassing of the maximum time to lock. 2722 Settings.Global.putInt(mContext.getContentResolver(), 2723 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 2724 } 2725 2726 policy.mLastMaximumTimeToLock = timeMs; 2727 mPowerManagerInternal.setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 2728 } finally { 2729 Binder.restoreCallingIdentity(ident); 2730 } 2731 } 2732 2733 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 2734 if (!mHasFeature) { 2735 return 0; 2736 } 2737 enforceCrossUserPermission(userHandle); 2738 synchronized (this) { 2739 long time = 0; 2740 2741 if (who != null) { 2742 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2743 return admin != null ? admin.maximumTimeToUnlock : time; 2744 } 2745 2746 // Return strictest policy for this user and profiles that are visible from this user. 2747 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2748 for (UserInfo userInfo : profiles) { 2749 DevicePolicyData policy = getUserData(userInfo.id); 2750 final int N = policy.mAdminList.size(); 2751 for (int i=0; i<N; i++) { 2752 ActiveAdmin admin = policy.mAdminList.get(i); 2753 if (time == 0) { 2754 time = admin.maximumTimeToUnlock; 2755 } else if (admin.maximumTimeToUnlock != 0 2756 && time > admin.maximumTimeToUnlock) { 2757 time = admin.maximumTimeToUnlock; 2758 } 2759 } 2760 } 2761 return time; 2762 } 2763 } 2764 2765 public void lockNow() { 2766 if (!mHasFeature) { 2767 return; 2768 } 2769 synchronized (this) { 2770 // This API can only be called by an active device admin, 2771 // so try to retrieve it to check that the caller is one. 2772 getActiveAdminForCallerLocked(null, 2773 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2774 lockNowUnchecked(); 2775 } 2776 } 2777 2778 private void lockNowUnchecked() { 2779 long ident = Binder.clearCallingIdentity(); 2780 try { 2781 // Power off the display 2782 mPowerManager.goToSleep(SystemClock.uptimeMillis(), 2783 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 2784 // Ensure the device is locked 2785 new LockPatternUtils(mContext).requireCredentialEntry(UserHandle.USER_ALL); 2786 getWindowManager().lockNow(null); 2787 } catch (RemoteException e) { 2788 } finally { 2789 Binder.restoreCallingIdentity(ident); 2790 } 2791 } 2792 2793 private boolean isExtStorageEncrypted() { 2794 String state = SystemProperties.get("vold.decrypt"); 2795 return !"".equals(state); 2796 } 2797 2798 @Override 2799 public void enforceCanManageCaCerts(ComponentName who) { 2800 if (who == null) { 2801 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 2802 } else { 2803 synchronized (this) { 2804 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2805 } 2806 } 2807 } 2808 2809 @Override 2810 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 2811 enforceCanManageCaCerts(admin); 2812 2813 byte[] pemCert; 2814 try { 2815 X509Certificate cert = parseCert(certBuffer); 2816 pemCert = Credentials.convertToPem(cert); 2817 } catch (CertificateException ce) { 2818 Log.e(LOG_TAG, "Problem converting cert", ce); 2819 return false; 2820 } catch (IOException ioe) { 2821 Log.e(LOG_TAG, "Problem reading cert", ioe); 2822 return false; 2823 } 2824 2825 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2826 final long id = Binder.clearCallingIdentity(); 2827 try { 2828 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2829 try { 2830 keyChainConnection.getService().installCaCertificate(pemCert); 2831 return true; 2832 } catch (RemoteException e) { 2833 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 2834 } finally { 2835 keyChainConnection.close(); 2836 } 2837 } catch (InterruptedException e1) { 2838 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 2839 Thread.currentThread().interrupt(); 2840 } finally { 2841 Binder.restoreCallingIdentity(id); 2842 } 2843 return false; 2844 } 2845 2846 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 2847 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 2848 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 2849 certBuffer)); 2850 } 2851 2852 @Override 2853 public void uninstallCaCert(ComponentName admin, String alias) { 2854 enforceCanManageCaCerts(admin); 2855 2856 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2857 final long id = Binder.clearCallingIdentity(); 2858 try { 2859 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2860 try { 2861 keyChainConnection.getService().deleteCaCertificate(alias); 2862 } catch (RemoteException e) { 2863 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 2864 } finally { 2865 keyChainConnection.close(); 2866 } 2867 } catch (InterruptedException ie) { 2868 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 2869 Thread.currentThread().interrupt(); 2870 } finally { 2871 Binder.restoreCallingIdentity(id); 2872 } 2873 } 2874 2875 @Override 2876 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 2877 if (who == null) { 2878 throw new NullPointerException("ComponentName is null"); 2879 } 2880 synchronized (this) { 2881 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2882 } 2883 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2884 final long id = Binder.clearCallingIdentity(); 2885 try { 2886 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2887 try { 2888 IKeyChainService keyChain = keyChainConnection.getService(); 2889 return keyChain.installKeyPair(privKey, cert, alias); 2890 } catch (RemoteException e) { 2891 Log.e(LOG_TAG, "Installing certificate", e); 2892 } finally { 2893 keyChainConnection.close(); 2894 } 2895 } catch (InterruptedException e) { 2896 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 2897 Thread.currentThread().interrupt(); 2898 } finally { 2899 Binder.restoreCallingIdentity(id); 2900 } 2901 return false; 2902 } 2903 2904 void wipeDataLocked(int flags, String reason) { 2905 // If the SD card is encrypted and non-removable, we have to force a wipe. 2906 boolean forceExtWipe = !Environment.isExternalStorageRemovable() && isExtStorageEncrypted(); 2907 boolean wipeExtRequested = (flags&DevicePolicyManager.WIPE_EXTERNAL_STORAGE) != 0; 2908 2909 // Note: we can only do the wipe via ExternalStorageFormatter if the volume is not emulated. 2910 if ((forceExtWipe || wipeExtRequested) && !Environment.isExternalStorageEmulated()) { 2911 Intent intent = new Intent(ExternalStorageFormatter.FORMAT_AND_FACTORY_RESET); 2912 intent.putExtra(ExternalStorageFormatter.EXTRA_ALWAYS_RESET, true); 2913 intent.putExtra(Intent.EXTRA_REASON, reason); 2914 intent.setComponent(ExternalStorageFormatter.COMPONENT_NAME); 2915 mWakeLock.acquire(10000); 2916 mContext.startService(intent); 2917 } else { 2918 try { 2919 RecoverySystem.rebootWipeUserData(mContext, reason); 2920 } catch (IOException e) { 2921 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 2922 } catch (SecurityException e) { 2923 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 2924 } 2925 } 2926 } 2927 2928 @Override 2929 public void wipeData(int flags, final int userHandle) { 2930 if (!mHasFeature) { 2931 return; 2932 } 2933 enforceCrossUserPermission(userHandle); 2934 synchronized (this) { 2935 // This API can only be called by an active device admin, 2936 // so try to retrieve it to check that the caller is one. 2937 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 2938 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 2939 2940 final String source; 2941 if (admin != null && admin.info != null) { 2942 final ComponentName cname = admin.info.getComponent(); 2943 if (cname != null) { 2944 source = cname.flattenToShortString(); 2945 } else { 2946 source = admin.info.getPackageName(); 2947 } 2948 } else { 2949 source = "?"; 2950 } 2951 2952 long ident = Binder.clearCallingIdentity(); 2953 try { 2954 wipeDeviceOrUserLocked(flags, userHandle, 2955 "DevicePolicyManager.wipeData() from " + source); 2956 } finally { 2957 Binder.restoreCallingIdentity(ident); 2958 } 2959 } 2960 } 2961 2962 private void wipeDeviceOrUserLocked(int flags, final int userHandle, String reason) { 2963 if (userHandle == UserHandle.USER_OWNER) { 2964 wipeDataLocked(flags, reason); 2965 } else { 2966 mHandler.post(new Runnable() { 2967 public void run() { 2968 try { 2969 ActivityManagerNative.getDefault().switchUser(UserHandle.USER_OWNER); 2970 if (!mUserManager.removeUser(userHandle)) { 2971 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 2972 } 2973 } catch (RemoteException re) { 2974 // Shouldn't happen 2975 } 2976 } 2977 }); 2978 } 2979 } 2980 2981 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 2982 if (!mHasFeature) { 2983 return; 2984 } 2985 enforceCrossUserPermission(userHandle); 2986 mContext.enforceCallingOrSelfPermission( 2987 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 2988 2989 synchronized (this) { 2990 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 2991 if (admin == null) { 2992 try { 2993 result.sendResult(null); 2994 } catch (RemoteException e) { 2995 } 2996 return; 2997 } 2998 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 2999 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3000 intent.setComponent(admin.info.getComponent()); 3001 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3002 null, new BroadcastReceiver() { 3003 @Override 3004 public void onReceive(Context context, Intent intent) { 3005 try { 3006 result.sendResult(getResultExtras(false)); 3007 } catch (RemoteException e) { 3008 } 3009 } 3010 }, null, Activity.RESULT_OK, null, null); 3011 } 3012 } 3013 3014 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3015 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3016 if (!mHasFeature) { 3017 return; 3018 } 3019 enforceCrossUserPermission(userHandle); 3020 enforceNotManagedProfile(userHandle, "set the active password"); 3021 3022 mContext.enforceCallingOrSelfPermission( 3023 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3024 DevicePolicyData p = getUserData(userHandle); 3025 3026 validateQualityConstant(quality); 3027 3028 synchronized (this) { 3029 if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length 3030 || p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters 3031 || p.mActivePasswordUpperCase != uppercase 3032 || p.mActivePasswordLowerCase != lowercase 3033 || p.mActivePasswordNumeric != numbers 3034 || p.mActivePasswordSymbols != symbols 3035 || p.mActivePasswordNonLetter != nonletter) { 3036 long ident = Binder.clearCallingIdentity(); 3037 try { 3038 p.mActivePasswordQuality = quality; 3039 p.mActivePasswordLength = length; 3040 p.mActivePasswordLetters = letters; 3041 p.mActivePasswordLowerCase = lowercase; 3042 p.mActivePasswordUpperCase = uppercase; 3043 p.mActivePasswordNumeric = numbers; 3044 p.mActivePasswordSymbols = symbols; 3045 p.mActivePasswordNonLetter = nonletter; 3046 p.mFailedPasswordAttempts = 0; 3047 saveSettingsLocked(userHandle); 3048 updatePasswordExpirationsLocked(userHandle); 3049 setExpirationAlarmCheckLocked(mContext, p); 3050 sendAdminCommandToSelfAndProfilesLocked( 3051 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3052 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3053 } finally { 3054 Binder.restoreCallingIdentity(ident); 3055 } 3056 } 3057 } 3058 } 3059 3060 /** 3061 * Called any time the device password is updated. Resets all password expiration clocks. 3062 */ 3063 private void updatePasswordExpirationsLocked(int userHandle) { 3064 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3065 for (UserInfo userInfo : profiles) { 3066 int profileId = userInfo.id; 3067 DevicePolicyData policy = getUserData(profileId); 3068 final int N = policy.mAdminList.size(); 3069 if (N > 0) { 3070 for (int i=0; i<N; i++) { 3071 ActiveAdmin admin = policy.mAdminList.get(i); 3072 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3073 long timeout = admin.passwordExpirationTimeout; 3074 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3075 admin.passwordExpirationDate = expiration; 3076 } 3077 } 3078 } 3079 saveSettingsLocked(profileId); 3080 } 3081 } 3082 3083 public void reportFailedPasswordAttempt(int userHandle) { 3084 enforceCrossUserPermission(userHandle); 3085 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3086 mContext.enforceCallingOrSelfPermission( 3087 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3088 3089 long ident = Binder.clearCallingIdentity(); 3090 try { 3091 boolean wipeData = false; 3092 int identifier = 0; 3093 synchronized (this) { 3094 DevicePolicyData policy = getUserData(userHandle); 3095 policy.mFailedPasswordAttempts++; 3096 saveSettingsLocked(userHandle); 3097 if (mHasFeature) { 3098 ActiveAdmin strictestAdmin = 3099 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3100 int max = strictestAdmin != null 3101 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3102 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 3103 // Wipe the user/profile associated with the policy that was violated. This 3104 // is not necessarily calling user: if the policy that fired was from a 3105 // managed profile rather than the main user profile, we wipe former only. 3106 wipeData = true; 3107 identifier = strictestAdmin.getUserHandle().getIdentifier(); 3108 } 3109 sendAdminCommandToSelfAndProfilesLocked( 3110 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 3111 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3112 } 3113 } 3114 if (wipeData) { 3115 // Call without holding lock. 3116 wipeDeviceOrUserLocked(0, identifier, "reportFailedPasswordAttempt()"); 3117 } 3118 } finally { 3119 Binder.restoreCallingIdentity(ident); 3120 } 3121 } 3122 3123 public void reportSuccessfulPasswordAttempt(int userHandle) { 3124 enforceCrossUserPermission(userHandle); 3125 mContext.enforceCallingOrSelfPermission( 3126 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3127 3128 synchronized (this) { 3129 DevicePolicyData policy = getUserData(userHandle); 3130 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 3131 long ident = Binder.clearCallingIdentity(); 3132 try { 3133 policy.mFailedPasswordAttempts = 0; 3134 policy.mPasswordOwner = -1; 3135 saveSettingsLocked(userHandle); 3136 if (mHasFeature) { 3137 sendAdminCommandToSelfAndProfilesLocked( 3138 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 3139 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3140 } 3141 } finally { 3142 Binder.restoreCallingIdentity(ident); 3143 } 3144 } 3145 } 3146 } 3147 3148 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 3149 String exclusionList, int userHandle) { 3150 if (!mHasFeature) { 3151 return null; 3152 } 3153 enforceCrossUserPermission(userHandle); 3154 synchronized(this) { 3155 if (who == null) { 3156 throw new NullPointerException("ComponentName is null"); 3157 } 3158 3159 // Only check if owner has set global proxy. We don't allow other users to set it. 3160 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3161 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3162 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 3163 3164 // Scan through active admins and find if anyone has already 3165 // set the global proxy. 3166 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 3167 for (ComponentName component : compSet) { 3168 ActiveAdmin ap = policy.mAdminMap.get(component); 3169 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 3170 // Another admin already sets the global proxy 3171 // Return it to the caller. 3172 return component; 3173 } 3174 } 3175 3176 // If the user is not the owner, don't set the global proxy. Fail silently. 3177 if (UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 3178 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 3179 + userHandle + " is not permitted."); 3180 return null; 3181 } 3182 if (proxySpec == null) { 3183 admin.specifiesGlobalProxy = false; 3184 admin.globalProxySpec = null; 3185 admin.globalProxyExclusionList = null; 3186 } else { 3187 3188 admin.specifiesGlobalProxy = true; 3189 admin.globalProxySpec = proxySpec; 3190 admin.globalProxyExclusionList = exclusionList; 3191 } 3192 3193 // Reset the global proxy accordingly 3194 // Do this using system permissions, as apps cannot write to secure settings 3195 long origId = Binder.clearCallingIdentity(); 3196 try { 3197 resetGlobalProxyLocked(policy); 3198 } finally { 3199 Binder.restoreCallingIdentity(origId); 3200 } 3201 return null; 3202 } 3203 } 3204 3205 public ComponentName getGlobalProxyAdmin(int userHandle) { 3206 if (!mHasFeature) { 3207 return null; 3208 } 3209 enforceCrossUserPermission(userHandle); 3210 synchronized(this) { 3211 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3212 // Scan through active admins and find if anyone has already 3213 // set the global proxy. 3214 final int N = policy.mAdminList.size(); 3215 for (int i = 0; i < N; i++) { 3216 ActiveAdmin ap = policy.mAdminList.get(i); 3217 if (ap.specifiesGlobalProxy) { 3218 // Device admin sets the global proxy 3219 // Return it to the caller. 3220 return ap.info.getComponent(); 3221 } 3222 } 3223 } 3224 // No device admin sets the global proxy. 3225 return null; 3226 } 3227 3228 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 3229 synchronized (this) { 3230 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3231 } 3232 long token = Binder.clearCallingIdentity(); 3233 try { 3234 ConnectivityManager connectivityManager = (ConnectivityManager) 3235 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 3236 connectivityManager.setGlobalProxy(proxyInfo); 3237 } finally { 3238 Binder.restoreCallingIdentity(token); 3239 } 3240 } 3241 3242 private void resetGlobalProxyLocked(DevicePolicyData policy) { 3243 final int N = policy.mAdminList.size(); 3244 for (int i = 0; i < N; i++) { 3245 ActiveAdmin ap = policy.mAdminList.get(i); 3246 if (ap.specifiesGlobalProxy) { 3247 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 3248 return; 3249 } 3250 } 3251 // No device admins defining global proxies - reset global proxy settings to none 3252 saveGlobalProxyLocked(null, null); 3253 } 3254 3255 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 3256 if (exclusionList == null) { 3257 exclusionList = ""; 3258 } 3259 if (proxySpec == null) { 3260 proxySpec = ""; 3261 } 3262 // Remove white spaces 3263 proxySpec = proxySpec.trim(); 3264 String data[] = proxySpec.split(":"); 3265 int proxyPort = 8080; 3266 if (data.length > 1) { 3267 try { 3268 proxyPort = Integer.parseInt(data[1]); 3269 } catch (NumberFormatException e) {} 3270 } 3271 exclusionList = exclusionList.trim(); 3272 ContentResolver res = mContext.getContentResolver(); 3273 3274 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 3275 if (!proxyProperties.isValid()) { 3276 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3277 return; 3278 } 3279 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 3280 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 3281 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 3282 exclusionList); 3283 } 3284 3285 /** 3286 * Set the storage encryption request for a single admin. Returns the new total request 3287 * status (for all admins). 3288 */ 3289 public int setStorageEncryption(ComponentName who, boolean encrypt, int userHandle) { 3290 if (!mHasFeature) { 3291 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3292 } 3293 enforceCrossUserPermission(userHandle); 3294 synchronized (this) { 3295 // Check for permissions 3296 if (who == null) { 3297 throw new NullPointerException("ComponentName is null"); 3298 } 3299 // Only owner can set storage encryption 3300 if (userHandle != UserHandle.USER_OWNER 3301 || UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 3302 Slog.w(LOG_TAG, "Only owner is allowed to set storage encryption. User " 3303 + UserHandle.getCallingUserId() + " is not permitted."); 3304 return 0; 3305 } 3306 3307 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3308 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 3309 3310 // Quick exit: If the filesystem does not support encryption, we can exit early. 3311 if (!isEncryptionSupported()) { 3312 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3313 } 3314 3315 // (1) Record the value for the admin so it's sticky 3316 if (ap.encryptionRequested != encrypt) { 3317 ap.encryptionRequested = encrypt; 3318 saveSettingsLocked(userHandle); 3319 } 3320 3321 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3322 // (2) Compute "max" for all admins 3323 boolean newRequested = false; 3324 final int N = policy.mAdminList.size(); 3325 for (int i = 0; i < N; i++) { 3326 newRequested |= policy.mAdminList.get(i).encryptionRequested; 3327 } 3328 3329 // Notify OS of new request 3330 setEncryptionRequested(newRequested); 3331 3332 // Return the new global request status 3333 return newRequested 3334 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3335 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3336 } 3337 } 3338 3339 /** 3340 * Get the current storage encryption request status for a given admin, or aggregate of all 3341 * active admins. 3342 */ 3343 public boolean getStorageEncryption(ComponentName who, int userHandle) { 3344 if (!mHasFeature) { 3345 return false; 3346 } 3347 enforceCrossUserPermission(userHandle); 3348 synchronized (this) { 3349 // Check for permissions if a particular caller is specified 3350 if (who != null) { 3351 // When checking for a single caller, status is based on caller's request 3352 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 3353 return ap != null ? ap.encryptionRequested : false; 3354 } 3355 3356 // If no particular caller is specified, return the aggregate set of requests. 3357 // This is short circuited by returning true on the first hit. 3358 DevicePolicyData policy = getUserData(userHandle); 3359 final int N = policy.mAdminList.size(); 3360 for (int i = 0; i < N; i++) { 3361 if (policy.mAdminList.get(i).encryptionRequested) { 3362 return true; 3363 } 3364 } 3365 return false; 3366 } 3367 } 3368 3369 /** 3370 * Get the current encryption status of the device. 3371 */ 3372 public int getStorageEncryptionStatus(int userHandle) { 3373 if (!mHasFeature) { 3374 // Ok to return current status. 3375 } 3376 enforceCrossUserPermission(userHandle); 3377 return getEncryptionStatus(); 3378 } 3379 3380 /** 3381 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 3382 */ 3383 private boolean isEncryptionSupported() { 3384 // Note, this can be implemented as 3385 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3386 // But is provided as a separate internal method if there's a faster way to do a 3387 // simple check for supported-or-not. 3388 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3389 } 3390 3391 /** 3392 * Hook to low-levels: Reporting the current status of encryption. 3393 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED} or 3394 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE} or 3395 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 3396 */ 3397 private int getEncryptionStatus() { 3398 String status = SystemProperties.get("ro.crypto.state", "unsupported"); 3399 if ("encrypted".equalsIgnoreCase(status)) { 3400 final long token = Binder.clearCallingIdentity(); 3401 try { 3402 return LockPatternUtils.isDeviceEncrypted() 3403 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3404 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3405 } finally { 3406 Binder.restoreCallingIdentity(token); 3407 } 3408 } else if ("unencrypted".equalsIgnoreCase(status)) { 3409 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3410 } else { 3411 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3412 } 3413 } 3414 3415 /** 3416 * Hook to low-levels: If needed, record the new admin setting for encryption. 3417 */ 3418 private void setEncryptionRequested(boolean encrypt) { 3419 } 3420 3421 3422 /** 3423 * Set whether the screen capture is disabled for the user managed by the specified admin. 3424 */ 3425 public void setScreenCaptureDisabled(ComponentName who, int userHandle, boolean disabled) { 3426 if (!mHasFeature) { 3427 return; 3428 } 3429 enforceCrossUserPermission(userHandle); 3430 synchronized (this) { 3431 if (who == null) { 3432 throw new NullPointerException("ComponentName is null"); 3433 } 3434 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3435 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3436 if (ap.disableScreenCapture != disabled) { 3437 ap.disableScreenCapture = disabled; 3438 saveSettingsLocked(userHandle); 3439 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 3440 } 3441 } 3442 } 3443 3444 /** 3445 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 3446 * active admin (if given admin is null). 3447 */ 3448 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 3449 if (!mHasFeature) { 3450 return false; 3451 } 3452 synchronized (this) { 3453 if (who != null) { 3454 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3455 return (admin != null) ? admin.disableScreenCapture : false; 3456 } 3457 3458 DevicePolicyData policy = getUserData(userHandle); 3459 final int N = policy.mAdminList.size(); 3460 for (int i = 0; i < N; i++) { 3461 ActiveAdmin admin = policy.mAdminList.get(i); 3462 if (admin.disableScreenCapture) { 3463 return true; 3464 } 3465 } 3466 return false; 3467 } 3468 } 3469 3470 private void updateScreenCaptureDisabledInWindowManager(int userHandle, boolean disabled) { 3471 long ident = Binder.clearCallingIdentity(); 3472 try { 3473 getWindowManager().setScreenCaptureDisabled(userHandle, disabled); 3474 } catch (RemoteException e) { 3475 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 3476 } finally { 3477 Binder.restoreCallingIdentity(ident); 3478 } 3479 } 3480 3481 /** 3482 * Set whether auto time is required by the specified admin (must be device owner). 3483 */ 3484 public void setAutoTimeRequired(ComponentName who, int userHandle, boolean required) { 3485 if (!mHasFeature) { 3486 return; 3487 } 3488 enforceCrossUserPermission(userHandle); 3489 synchronized (this) { 3490 if (who == null) { 3491 throw new NullPointerException("ComponentName is null"); 3492 } 3493 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3494 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3495 if (admin.requireAutoTime != required) { 3496 admin.requireAutoTime = required; 3497 saveSettingsLocked(userHandle); 3498 } 3499 } 3500 3501 // Turn AUTO_TIME on in settings if it is required 3502 if (required) { 3503 long ident = Binder.clearCallingIdentity(); 3504 try { 3505 Settings.Global.putInt(mContext.getContentResolver(), 3506 Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 3507 } finally { 3508 Binder.restoreCallingIdentity(ident); 3509 } 3510 } 3511 } 3512 3513 /** 3514 * Returns whether or not auto time is required by the device owner. 3515 */ 3516 public boolean getAutoTimeRequired() { 3517 if (!mHasFeature) { 3518 return false; 3519 } 3520 synchronized (this) { 3521 ActiveAdmin deviceOwner = getDeviceOwnerAdmin(); 3522 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 3523 } 3524 } 3525 3526 /** 3527 * The system property used to share the state of the camera. The native camera service 3528 * is expected to read this property and act accordingly. 3529 */ 3530 public static final String SYSTEM_PROP_DISABLE_CAMERA = "sys.secpolicy.camera.disabled"; 3531 3532 /** 3533 * Disables all device cameras according to the specified admin. 3534 */ 3535 public void setCameraDisabled(ComponentName who, boolean disabled, int userHandle) { 3536 if (!mHasFeature) { 3537 return; 3538 } 3539 enforceCrossUserPermission(userHandle); 3540 synchronized (this) { 3541 if (who == null) { 3542 throw new NullPointerException("ComponentName is null"); 3543 } 3544 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3545 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 3546 if (ap.disableCamera != disabled) { 3547 ap.disableCamera = disabled; 3548 saveSettingsLocked(userHandle); 3549 } 3550 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 3551 } 3552 } 3553 3554 /** 3555 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 3556 * active admins. 3557 */ 3558 public boolean getCameraDisabled(ComponentName who, int userHandle) { 3559 if (!mHasFeature) { 3560 return false; 3561 } 3562 synchronized (this) { 3563 if (who != null) { 3564 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3565 return (admin != null) ? admin.disableCamera : false; 3566 } 3567 3568 DevicePolicyData policy = getUserData(userHandle); 3569 // Determine whether or not the device camera is disabled for any active admins. 3570 final int N = policy.mAdminList.size(); 3571 for (int i = 0; i < N; i++) { 3572 ActiveAdmin admin = policy.mAdminList.get(i); 3573 if (admin.disableCamera) { 3574 return true; 3575 } 3576 } 3577 return false; 3578 } 3579 } 3580 3581 /** 3582 * Selectively disable keyguard features. 3583 */ 3584 public void setKeyguardDisabledFeatures(ComponentName who, int which, int userHandle) { 3585 if (!mHasFeature) { 3586 return; 3587 } 3588 enforceCrossUserPermission(userHandle); 3589 enforceNotManagedProfile(userHandle, "disable keyguard features"); 3590 synchronized (this) { 3591 if (who == null) { 3592 throw new NullPointerException("ComponentName is null"); 3593 } 3594 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3595 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 3596 if (ap.disabledKeyguardFeatures != which) { 3597 ap.disabledKeyguardFeatures = which; 3598 saveSettingsLocked(userHandle); 3599 } 3600 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 3601 } 3602 } 3603 3604 /** 3605 * Gets the disabled state for features in keyguard for the given admin, 3606 * or the aggregate of all active admins if who is null. 3607 */ 3608 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 3609 if (!mHasFeature) { 3610 return 0; 3611 } 3612 enforceCrossUserPermission(userHandle); 3613 synchronized (this) { 3614 if (who != null) { 3615 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3616 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 3617 } 3618 3619 // Determine which keyguard features are disabled for any active admins. 3620 DevicePolicyData policy = getUserData(userHandle); 3621 final int N = policy.mAdminList.size(); 3622 int which = 0; 3623 for (int i = 0; i < N; i++) { 3624 ActiveAdmin admin = policy.mAdminList.get(i); 3625 which |= admin.disabledKeyguardFeatures; 3626 } 3627 return which; 3628 } 3629 } 3630 3631 @Override 3632 public boolean setDeviceOwner(String packageName, String ownerName) { 3633 if (!mHasFeature) { 3634 return false; 3635 } 3636 if (packageName == null 3637 || !DeviceOwner.isInstalled(packageName, mContext.getPackageManager())) { 3638 throw new IllegalArgumentException("Invalid package name " + packageName 3639 + " for device owner"); 3640 } 3641 synchronized (this) { 3642 if (!allowedToSetDeviceOwnerOnDevice()) { 3643 throw new IllegalStateException( 3644 "Trying to set device owner but device is already provisioned."); 3645 } 3646 3647 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3648 throw new IllegalStateException( 3649 "Trying to set device owner but device owner is already set."); 3650 } 3651 3652 if (mDeviceOwner == null) { 3653 // Device owner is not set and does not exist, set it. 3654 mDeviceOwner = DeviceOwner.createWithDeviceOwner(packageName, ownerName); 3655 mDeviceOwner.writeOwnerFile(); 3656 return true; 3657 } else { 3658 // Device owner is not set but a profile owner exists, update Device owner state. 3659 mDeviceOwner.setDeviceOwner(packageName, ownerName); 3660 mDeviceOwner.writeOwnerFile(); 3661 return true; 3662 } 3663 } 3664 } 3665 3666 @Override 3667 public boolean isDeviceOwner(String packageName) { 3668 if (!mHasFeature) { 3669 return false; 3670 } 3671 synchronized (this) { 3672 return mDeviceOwner != null 3673 && mDeviceOwner.hasDeviceOwner() 3674 && mDeviceOwner.getDeviceOwnerPackageName().equals(packageName); 3675 } 3676 } 3677 3678 @Override 3679 public String getDeviceOwner() { 3680 if (!mHasFeature) { 3681 return null; 3682 } 3683 synchronized (this) { 3684 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3685 return mDeviceOwner.getDeviceOwnerPackageName(); 3686 } 3687 } 3688 return null; 3689 } 3690 3691 @Override 3692 public String getDeviceOwnerName() { 3693 if (!mHasFeature) { 3694 return null; 3695 } 3696 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3697 synchronized (this) { 3698 if (mDeviceOwner != null) { 3699 return mDeviceOwner.getDeviceOwnerName(); 3700 } 3701 } 3702 return null; 3703 } 3704 3705 // Returns the active device owner or null if there is no device owner. 3706 private ActiveAdmin getDeviceOwnerAdmin() { 3707 String deviceOwnerPackageName = getDeviceOwner(); 3708 if (deviceOwnerPackageName == null) { 3709 return null; 3710 } 3711 3712 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3713 final int n = policy.mAdminList.size(); 3714 for (int i = 0; i < n; i++) { 3715 ActiveAdmin admin = policy.mAdminList.get(i); 3716 if (deviceOwnerPackageName.equals(admin.info.getPackageName())) { 3717 return admin; 3718 } 3719 } 3720 return null; 3721 } 3722 3723 @Override 3724 public void clearDeviceOwner(String packageName) { 3725 if (packageName == null) { 3726 throw new NullPointerException("packageName is null"); 3727 } 3728 try { 3729 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 3730 if (uid != Binder.getCallingUid()) { 3731 throw new SecurityException("Invalid packageName"); 3732 } 3733 } catch (NameNotFoundException e) { 3734 throw new SecurityException(e); 3735 } 3736 if (!isDeviceOwner(packageName)) { 3737 throw new SecurityException("clearDeviceOwner can only be called by the device owner"); 3738 } 3739 synchronized (this) { 3740 long ident = Binder.clearCallingIdentity(); 3741 try { 3742 clearUserRestrictions(new UserHandle(UserHandle.USER_OWNER)); 3743 if (mDeviceOwner != null) { 3744 mDeviceOwner.clearDeviceOwner(); 3745 mDeviceOwner.writeOwnerFile(); 3746 } 3747 } finally { 3748 Binder.restoreCallingIdentity(ident); 3749 } 3750 } 3751 } 3752 3753 @Override 3754 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 3755 if (!mHasFeature) { 3756 return false; 3757 } 3758 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3759 3760 UserInfo info = mUserManager.getUserInfo(userHandle); 3761 if (info == null) { 3762 // User doesn't exist. 3763 throw new IllegalArgumentException( 3764 "Attempted to set profile owner for invalid userId: " + userHandle); 3765 } 3766 if (info.isGuest()) { 3767 throw new IllegalStateException("Cannot set a profile owner on a guest"); 3768 } 3769 3770 if (who == null 3771 || !DeviceOwner.isInstalledForUser(who.getPackageName(), userHandle)) { 3772 throw new IllegalArgumentException("Component " + who 3773 + " not installed for userId:" + userHandle); 3774 } 3775 synchronized (this) { 3776 // Only SYSTEM_UID can override the userSetupComplete 3777 if (UserHandle.getAppId(Binder.getCallingUid()) != Process.SYSTEM_UID 3778 && hasUserSetupCompleted(userHandle)) { 3779 throw new IllegalStateException( 3780 "Trying to set profile owner but user is already set-up."); 3781 } 3782 3783 if (mDeviceOwner == null) { 3784 // Device owner state does not exist, create it. 3785 mDeviceOwner = DeviceOwner.createWithProfileOwner(who, ownerName, 3786 userHandle); 3787 mDeviceOwner.writeOwnerFile(); 3788 return true; 3789 } else { 3790 // Device owner already exists, update it. 3791 mDeviceOwner.setProfileOwner(who, ownerName, userHandle); 3792 mDeviceOwner.writeOwnerFile(); 3793 return true; 3794 } 3795 } 3796 } 3797 3798 @Override 3799 public void clearProfileOwner(ComponentName who) { 3800 if (!mHasFeature) { 3801 return; 3802 } 3803 UserHandle callingUser = Binder.getCallingUserHandle(); 3804 // Check if this is the profile owner who is calling 3805 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3806 synchronized (this) { 3807 long ident = Binder.clearCallingIdentity(); 3808 try { 3809 clearUserRestrictions(callingUser); 3810 if (mDeviceOwner != null) { 3811 mDeviceOwner.removeProfileOwner(callingUser.getIdentifier()); 3812 mDeviceOwner.writeOwnerFile(); 3813 } 3814 } finally { 3815 Binder.restoreCallingIdentity(ident); 3816 } 3817 } 3818 } 3819 3820 private void clearUserRestrictions(UserHandle userHandle) { 3821 AudioManager audioManager = 3822 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 3823 Bundle userRestrictions = mUserManager.getUserRestrictions(); 3824 mUserManager.setUserRestrictions(new Bundle(), userHandle); 3825 if (userRestrictions.getBoolean(UserManager.DISALLOW_ADJUST_VOLUME)) { 3826 audioManager.setMasterMute(false); 3827 } 3828 if (userRestrictions.getBoolean(UserManager.DISALLOW_UNMUTE_MICROPHONE)) { 3829 audioManager.setMicrophoneMute(false); 3830 } 3831 } 3832 3833 @Override 3834 public boolean hasUserSetupCompleted() { 3835 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 3836 } 3837 3838 private boolean hasUserSetupCompleted(int userHandle) { 3839 if (!mHasFeature) { 3840 return true; 3841 } 3842 DevicePolicyData policy = getUserData(userHandle); 3843 // If policy is null, return true, else check if the setup has completed. 3844 return policy == null || policy.mUserSetupComplete; 3845 } 3846 3847 @Override 3848 public void setProfileEnabled(ComponentName who) { 3849 if (!mHasFeature) { 3850 return; 3851 } 3852 final int userHandle = UserHandle.getCallingUserId(); 3853 synchronized (this) { 3854 // Check for permissions 3855 if (who == null) { 3856 throw new NullPointerException("ComponentName is null"); 3857 } 3858 // Check if this is the profile owner who is calling 3859 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3860 int userId = UserHandle.getCallingUserId(); 3861 3862 long id = Binder.clearCallingIdentity(); 3863 try { 3864 mUserManager.setUserEnabled(userId); 3865 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 3866 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 3867 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 3868 Intent.FLAG_RECEIVER_FOREGROUND); 3869 // TODO This should send to parent of profile (which is always owner at the moment). 3870 mContext.sendBroadcastAsUser(intent, UserHandle.OWNER); 3871 } finally { 3872 restoreCallingIdentity(id); 3873 } 3874 } 3875 } 3876 3877 @Override 3878 public void setProfileName(ComponentName who, String profileName) { 3879 int userId = UserHandle.getCallingUserId(); 3880 3881 if (who == null) { 3882 throw new NullPointerException("ComponentName is null"); 3883 } 3884 3885 // Check if this is the profile owner (includes device owner). 3886 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3887 3888 long id = Binder.clearCallingIdentity(); 3889 try { 3890 mUserManager.setUserName(userId, profileName); 3891 } finally { 3892 restoreCallingIdentity(id); 3893 } 3894 } 3895 3896 @Override 3897 public ComponentName getProfileOwner(int userHandle) { 3898 if (!mHasFeature) { 3899 return null; 3900 } 3901 3902 synchronized (this) { 3903 if (mDeviceOwner != null) { 3904 return mDeviceOwner.getProfileOwnerComponent(userHandle); 3905 } 3906 } 3907 return null; 3908 } 3909 3910 // Returns the active profile owner for this user or null if the current user has no 3911 // profile owner. 3912 private ActiveAdmin getProfileOwnerAdmin(int userHandle) { 3913 ComponentName profileOwner = 3914 mDeviceOwner != null ? mDeviceOwner.getProfileOwnerComponent(userHandle) : null; 3915 if (profileOwner == null) { 3916 return null; 3917 } 3918 3919 DevicePolicyData policy = getUserData(userHandle); 3920 final int n = policy.mAdminList.size(); 3921 for (int i = 0; i < n; i++) { 3922 ActiveAdmin admin = policy.mAdminList.get(i); 3923 if (profileOwner.equals(admin.info)) { 3924 return admin; 3925 } 3926 } 3927 return null; 3928 } 3929 3930 @Override 3931 public String getProfileOwnerName(int userHandle) { 3932 if (!mHasFeature) { 3933 return null; 3934 } 3935 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3936 3937 synchronized (this) { 3938 if (mDeviceOwner != null) { 3939 return mDeviceOwner.getProfileOwnerName(userHandle); 3940 } 3941 } 3942 return null; 3943 } 3944 3945 /** 3946 * Device owner can only be set on an unprovisioned device, unless it was initiated by "adb", in 3947 * which case we allow it if no account is associated with the device. 3948 */ 3949 private boolean allowedToSetDeviceOwnerOnDevice() { 3950 int callingId = Binder.getCallingUid(); 3951 if (callingId == Process.SHELL_UID || callingId == Process.ROOT_UID) { 3952 return AccountManager.get(mContext).getAccounts().length == 0; 3953 } else { 3954 return !hasUserSetupCompleted(UserHandle.USER_OWNER); 3955 } 3956 } 3957 3958 private void enforceCrossUserPermission(int userHandle) { 3959 if (userHandle < 0) { 3960 throw new IllegalArgumentException("Invalid userId " + userHandle); 3961 } 3962 final int callingUid = Binder.getCallingUid(); 3963 if (userHandle == UserHandle.getUserId(callingUid)) return; 3964 if (callingUid != Process.SYSTEM_UID && callingUid != 0) { 3965 mContext.enforceCallingOrSelfPermission( 3966 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 3967 + " INTERACT_ACROSS_USERS_FULL permission"); 3968 } 3969 } 3970 3971 private void enforceSystemProcess(String message) { 3972 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 3973 throw new SecurityException(message); 3974 } 3975 } 3976 3977 private void enforceNotManagedProfile(int userHandle, String message) { 3978 if(isManagedProfile(userHandle)) { 3979 throw new SecurityException("You can not " + message + " for a managed profile. "); 3980 } 3981 } 3982 3983 private UserInfo getProfileParent(int userHandle) { 3984 long ident = Binder.clearCallingIdentity(); 3985 try { 3986 return mUserManager.getProfileParent(userHandle); 3987 } finally { 3988 Binder.restoreCallingIdentity(ident); 3989 } 3990 } 3991 3992 private boolean isManagedProfile(int userHandle) { 3993 long ident = Binder.clearCallingIdentity(); 3994 try { 3995 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 3996 } finally { 3997 Binder.restoreCallingIdentity(ident); 3998 } 3999 } 4000 4001 private void enableIfNecessary(String packageName, int userId) { 4002 try { 4003 IPackageManager ipm = AppGlobals.getPackageManager(); 4004 ApplicationInfo ai = ipm.getApplicationInfo(packageName, 4005 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 4006 userId); 4007 if (ai.enabledSetting 4008 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 4009 ipm.setApplicationEnabledSetting(packageName, 4010 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 4011 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 4012 } 4013 } catch (RemoteException e) { 4014 } 4015 } 4016 4017 @Override 4018 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 4019 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 4020 != PackageManager.PERMISSION_GRANTED) { 4021 4022 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 4023 + Binder.getCallingPid() 4024 + ", uid=" + Binder.getCallingUid()); 4025 return; 4026 } 4027 4028 final Printer p = new PrintWriterPrinter(pw); 4029 4030 synchronized (this) { 4031 p.println("Current Device Policy Manager state:"); 4032 4033 int userCount = mUserData.size(); 4034 for (int u = 0; u < userCount; u++) { 4035 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 4036 p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 4037 final int N = policy.mAdminList.size(); 4038 for (int i=0; i<N; i++) { 4039 ActiveAdmin ap = policy.mAdminList.get(i); 4040 if (ap != null) { 4041 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 4042 pw.println(":"); 4043 ap.dump(" ", pw); 4044 } 4045 } 4046 4047 pw.println(" "); 4048 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 4049 } 4050 } 4051 } 4052 4053 @Override 4054 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 4055 ComponentName activity) { 4056 final int userHandle = UserHandle.getCallingUserId(); 4057 4058 synchronized (this) { 4059 if (who == null) { 4060 throw new NullPointerException("ComponentName is null"); 4061 } 4062 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4063 4064 IPackageManager pm = AppGlobals.getPackageManager(); 4065 long id = Binder.clearCallingIdentity(); 4066 try { 4067 pm.addPersistentPreferredActivity(filter, activity, userHandle); 4068 } catch (RemoteException re) { 4069 // Shouldn't happen 4070 } finally { 4071 restoreCallingIdentity(id); 4072 } 4073 } 4074 } 4075 4076 @Override 4077 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 4078 final int userHandle = UserHandle.getCallingUserId(); 4079 4080 synchronized (this) { 4081 if (who == null) { 4082 throw new NullPointerException("ComponentName is null"); 4083 } 4084 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4085 4086 IPackageManager pm = AppGlobals.getPackageManager(); 4087 long id = Binder.clearCallingIdentity(); 4088 try { 4089 pm.clearPackagePersistentPreferredActivities(packageName, userHandle); 4090 } catch (RemoteException re) { 4091 // Shouldn't happen 4092 } finally { 4093 restoreCallingIdentity(id); 4094 } 4095 } 4096 } 4097 4098 @Override 4099 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 4100 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4101 4102 synchronized (this) { 4103 if (who == null) { 4104 throw new NullPointerException("ComponentName is null"); 4105 } 4106 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4107 4108 long id = Binder.clearCallingIdentity(); 4109 try { 4110 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 4111 } finally { 4112 restoreCallingIdentity(id); 4113 } 4114 } 4115 } 4116 4117 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 4118 PersistableBundle args, int userHandle) { 4119 if (!mHasFeature) { 4120 return; 4121 } 4122 enforceCrossUserPermission(userHandle); 4123 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 4124 synchronized (this) { 4125 if (admin == null) { 4126 throw new NullPointerException("admin is null"); 4127 } 4128 if (agent == null) { 4129 throw new NullPointerException("agent is null"); 4130 } 4131 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 4132 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4133 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 4134 saveSettingsLocked(userHandle); 4135 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 4136 } 4137 } 4138 4139 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 4140 ComponentName agent, int userHandle) { 4141 if (!mHasFeature) { 4142 return null; 4143 } 4144 enforceCrossUserPermission(userHandle); 4145 if (agent == null) { 4146 throw new NullPointerException("agent is null"); 4147 } 4148 4149 synchronized (this) { 4150 final String componentName = agent.flattenToString(); 4151 if (admin != null) { 4152 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 4153 if (ap == null) return null; 4154 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 4155 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 4156 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 4157 result.add(trustAgentInfo.options); 4158 return result; 4159 } 4160 4161 // Return strictest policy for this user and profiles that are visible from this user. 4162 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 4163 List<PersistableBundle> result = null; 4164 4165 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 4166 // of the options. If any admin doesn't have options, discard options for the rest 4167 // and return null. 4168 boolean allAdminsHaveOptions = true; 4169 for (UserInfo userInfo : profiles) { 4170 DevicePolicyData policy = getUserData(userInfo.id); 4171 final int N = policy.mAdminList.size(); 4172 for (int i=0; i < N; i++) { 4173 final ActiveAdmin active = policy.mAdminList.get(i); 4174 final boolean disablesTrust = (active.disabledKeyguardFeatures 4175 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 4176 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 4177 if (info != null && info.options != null && !info.options.isEmpty()) { 4178 if (disablesTrust) { 4179 if (result == null) { 4180 result = new ArrayList<PersistableBundle>(); 4181 } 4182 result.add(info.options); 4183 } else { 4184 Log.w(LOG_TAG, "Ignoring admin " + active.info 4185 + " because it has trust options but doesn't declare " 4186 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 4187 } 4188 } else if (disablesTrust) { 4189 allAdminsHaveOptions = false; 4190 break; 4191 } 4192 } 4193 } 4194 return allAdminsHaveOptions ? result : null; 4195 } 4196 } 4197 4198 @Override 4199 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 4200 synchronized (this) { 4201 if (who == null) { 4202 throw new NullPointerException("ComponentName is null"); 4203 } 4204 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4205 4206 int userHandle = UserHandle.getCallingUserId(); 4207 DevicePolicyData userData = getUserData(userHandle); 4208 userData.mRestrictionsProvider = permissionProvider; 4209 saveSettingsLocked(userHandle); 4210 } 4211 } 4212 4213 @Override 4214 public ComponentName getRestrictionsProvider(int userHandle) { 4215 synchronized (this) { 4216 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4217 throw new SecurityException("Only the system can query the permission provider"); 4218 } 4219 DevicePolicyData userData = getUserData(userHandle); 4220 return userData != null ? userData.mRestrictionsProvider : null; 4221 } 4222 } 4223 4224 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 4225 int callingUserId = UserHandle.getCallingUserId(); 4226 synchronized (this) { 4227 if (who == null) { 4228 throw new NullPointerException("ComponentName is null"); 4229 } 4230 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4231 4232 IPackageManager pm = AppGlobals.getPackageManager(); 4233 long id = Binder.clearCallingIdentity(); 4234 try { 4235 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 4236 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), 4237 mContext.getUserId(), callingUserId, UserHandle.USER_OWNER, 0); 4238 } 4239 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 4240 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), 4241 mContext.getUserId(), UserHandle.USER_OWNER, callingUserId, 0); 4242 } 4243 } catch (RemoteException re) { 4244 // Shouldn't happen 4245 } finally { 4246 restoreCallingIdentity(id); 4247 } 4248 } 4249 } 4250 4251 public void clearCrossProfileIntentFilters(ComponentName who) { 4252 int callingUserId = UserHandle.getCallingUserId(); 4253 synchronized (this) { 4254 if (who == null) { 4255 throw new NullPointerException("ComponentName is null"); 4256 } 4257 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4258 IPackageManager pm = AppGlobals.getPackageManager(); 4259 long id = Binder.clearCallingIdentity(); 4260 try { 4261 pm.clearCrossProfileIntentFilters(callingUserId, who.getPackageName(), 4262 callingUserId); 4263 // If we want to support multiple managed profiles, we will have to only remove 4264 // those that have callingUserId as their target. 4265 pm.clearCrossProfileIntentFilters(UserHandle.USER_OWNER, who.getPackageName(), 4266 callingUserId); 4267 } catch (RemoteException re) { 4268 // Shouldn't happen 4269 } finally { 4270 restoreCallingIdentity(id); 4271 } 4272 } 4273 } 4274 4275 /** 4276 * @return true if all packages in enabledPackages are either in the list 4277 * permittedList or are a system app. 4278 */ 4279 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 4280 List<String> permittedList) { 4281 int userIdToCheck = UserHandle.getCallingUserId(); 4282 long id = Binder.clearCallingIdentity(); 4283 try { 4284 // If we have an enabled packages list for a managed profile the packages 4285 // we should check are installed for the parent user. 4286 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 4287 if (user.isManagedProfile()) { 4288 userIdToCheck = user.profileGroupId; 4289 } 4290 4291 IPackageManager pm = AppGlobals.getPackageManager(); 4292 for (String enabledPackage : enabledPackages) { 4293 boolean systemService = false; 4294 try { 4295 ApplicationInfo applicationInfo = pm.getApplicationInfo(enabledPackage, 4296 PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 4297 systemService = (applicationInfo.flags 4298 & ApplicationInfo.FLAG_SYSTEM) != 0; 4299 } catch (RemoteException e) { 4300 Log.i(LOG_TAG, "Can't talk to package managed", e); 4301 } 4302 if (!systemService && !permittedList.contains(enabledPackage)) { 4303 return false; 4304 } 4305 } 4306 } finally { 4307 restoreCallingIdentity(id); 4308 } 4309 return true; 4310 } 4311 4312 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 4313 // Not using AccessibilityManager.getInstance because that guesses 4314 // at the user you require based on callingUid and caches for a given 4315 // process. 4316 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 4317 IAccessibilityManager service = iBinder == null 4318 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 4319 return new AccessibilityManager(mContext, service, userId); 4320 } 4321 4322 @Override 4323 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 4324 if (!mHasFeature) { 4325 return false; 4326 } 4327 if (who == null) { 4328 throw new NullPointerException("ComponentName is null"); 4329 } 4330 4331 if (packageList != null) { 4332 int userId = UserHandle.getCallingUserId(); 4333 List<AccessibilityServiceInfo> enabledServices = null; 4334 long id = Binder.clearCallingIdentity(); 4335 try { 4336 UserInfo user = mUserManager.getUserInfo(userId); 4337 if (user.isManagedProfile()) { 4338 userId = user.profileGroupId; 4339 } 4340 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 4341 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 4342 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 4343 } finally { 4344 restoreCallingIdentity(id); 4345 } 4346 4347 if (enabledServices != null) { 4348 List<String> enabledPackages = new ArrayList<String>(); 4349 for (AccessibilityServiceInfo service : enabledServices) { 4350 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 4351 } 4352 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 4353 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 4354 + "because it contains already enabled accesibility services."); 4355 return false; 4356 } 4357 } 4358 } 4359 4360 synchronized (this) { 4361 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4362 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4363 admin.permittedAccessiblityServices = packageList; 4364 saveSettingsLocked(UserHandle.getCallingUserId()); 4365 } 4366 return true; 4367 } 4368 4369 @Override 4370 public List getPermittedAccessibilityServices(ComponentName who) { 4371 if (!mHasFeature) { 4372 return null; 4373 } 4374 4375 if (who == null) { 4376 throw new NullPointerException("ComponentName is null"); 4377 } 4378 4379 synchronized (this) { 4380 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4381 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4382 return admin.permittedAccessiblityServices; 4383 } 4384 } 4385 4386 @Override 4387 public List getPermittedAccessibilityServicesForUser(int userId) { 4388 if (!mHasFeature) { 4389 return null; 4390 } 4391 synchronized (this) { 4392 List<String> result = null; 4393 // If we have multiple profiles we return the intersection of the 4394 // permitted lists. This can happen in cases where we have a device 4395 // and profile owner. 4396 List<UserInfo> profiles = mUserManager.getProfiles(userId); 4397 final int PROFILES_SIZE = profiles.size(); 4398 for (int i = 0; i < PROFILES_SIZE; ++i) { 4399 // Just loop though all admins, only device or profiles 4400 // owners can have permitted lists set. 4401 DevicePolicyData policy = getUserData(profiles.get(i).id); 4402 final int N = policy.mAdminList.size(); 4403 for (int j = 0; j < N; j++) { 4404 ActiveAdmin admin = policy.mAdminList.get(j); 4405 List<String> fromAdmin = admin.permittedAccessiblityServices; 4406 if (fromAdmin != null) { 4407 if (result == null) { 4408 result = new ArrayList<String>(fromAdmin); 4409 } else { 4410 result.retainAll(fromAdmin); 4411 } 4412 } 4413 } 4414 } 4415 4416 // If we have a permitted list add all system accessibility services. 4417 if (result != null) { 4418 long id = Binder.clearCallingIdentity(); 4419 try { 4420 UserInfo user = mUserManager.getUserInfo(userId); 4421 if (user.isManagedProfile()) { 4422 userId = user.profileGroupId; 4423 } 4424 AccessibilityManager accessibilityManager = 4425 getAccessibilityManagerForUser(userId); 4426 List<AccessibilityServiceInfo> installedServices = 4427 accessibilityManager.getInstalledAccessibilityServiceList(); 4428 4429 IPackageManager pm = AppGlobals.getPackageManager(); 4430 if (installedServices != null) { 4431 for (AccessibilityServiceInfo service : installedServices) { 4432 String packageName = service.getResolveInfo().serviceInfo.packageName; 4433 try { 4434 ApplicationInfo applicationInfo = pm.getApplicationInfo(packageName, 4435 PackageManager.GET_UNINSTALLED_PACKAGES, userId); 4436 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 4437 result.add(packageName); 4438 } 4439 } catch (RemoteException e) { 4440 Log.i(LOG_TAG, "Accessibility service in missing package", e); 4441 } 4442 } 4443 } 4444 } finally { 4445 restoreCallingIdentity(id); 4446 } 4447 } 4448 4449 return result; 4450 } 4451 } 4452 4453 private boolean checkCallerIsCurrentUserOrProfile() { 4454 int callingUserId = UserHandle.getCallingUserId(); 4455 long token = Binder.clearCallingIdentity(); 4456 try { 4457 UserInfo currentUser; 4458 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 4459 try { 4460 currentUser = ActivityManagerNative.getDefault().getCurrentUser(); 4461 } catch (RemoteException e) { 4462 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 4463 return false; 4464 } 4465 4466 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 4467 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 4468 + "of a user that isn't the foreground user."); 4469 return false; 4470 } 4471 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 4472 Slog.e(LOG_TAG, "Cannot set permitted input methods " 4473 + "of a user that isn't the foreground user."); 4474 return false; 4475 } 4476 } finally { 4477 Binder.restoreCallingIdentity(token); 4478 } 4479 return true; 4480 } 4481 4482 @Override 4483 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 4484 if (!mHasFeature) { 4485 return false; 4486 } 4487 if (who == null) { 4488 throw new NullPointerException("ComponentName is null"); 4489 } 4490 4491 // TODO When InputMethodManager supports per user calls remove 4492 // this restriction. 4493 if (!checkCallerIsCurrentUserOrProfile()) { 4494 return false; 4495 } 4496 4497 if (packageList != null) { 4498 // InputMethodManager fetches input methods for current user. 4499 // So this can only be set when calling user is the current user 4500 // or parent is current user in case of managed profiles. 4501 InputMethodManager inputMethodManager = (InputMethodManager) mContext 4502 .getSystemService(Context.INPUT_METHOD_SERVICE); 4503 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 4504 4505 if (enabledImes != null) { 4506 List<String> enabledPackages = new ArrayList<String>(); 4507 for (InputMethodInfo ime : enabledImes) { 4508 enabledPackages.add(ime.getPackageName()); 4509 } 4510 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 4511 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 4512 + "because it contains already enabled input method."); 4513 return false; 4514 } 4515 } 4516 } 4517 4518 synchronized (this) { 4519 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4520 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4521 admin.permittedInputMethods = packageList; 4522 saveSettingsLocked(UserHandle.getCallingUserId()); 4523 } 4524 return true; 4525 } 4526 4527 @Override 4528 public List getPermittedInputMethods(ComponentName who) { 4529 if (!mHasFeature) { 4530 return null; 4531 } 4532 4533 if (who == null) { 4534 throw new NullPointerException("ComponentName is null"); 4535 } 4536 4537 synchronized (this) { 4538 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4539 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4540 return admin.permittedInputMethods; 4541 } 4542 } 4543 4544 @Override 4545 public List getPermittedInputMethodsForCurrentUser() { 4546 UserInfo currentUser; 4547 try { 4548 currentUser = ActivityManagerNative.getDefault().getCurrentUser(); 4549 } catch (RemoteException e) { 4550 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 4551 // Activity managed is dead, just allow all IMEs 4552 return null; 4553 } 4554 4555 int userId = currentUser.id; 4556 synchronized (this) { 4557 List<String> result = null; 4558 // If we have multiple profiles we return the intersection of the 4559 // permitted lists. This can happen in cases where we have a device 4560 // and profile owner. 4561 List<UserInfo> profiles = mUserManager.getProfiles(userId); 4562 final int PROFILES_SIZE = profiles.size(); 4563 for (int i = 0; i < PROFILES_SIZE; ++i) { 4564 // Just loop though all admins, only device or profiles 4565 // owners can have permitted lists set. 4566 DevicePolicyData policy = getUserData(profiles.get(i).id); 4567 final int N = policy.mAdminList.size(); 4568 for (int j = 0; j < N; j++) { 4569 ActiveAdmin admin = policy.mAdminList.get(j); 4570 List<String> fromAdmin = admin.permittedInputMethods; 4571 if (fromAdmin != null) { 4572 if (result == null) { 4573 result = new ArrayList<String>(fromAdmin); 4574 } else { 4575 result.retainAll(fromAdmin); 4576 } 4577 } 4578 } 4579 } 4580 4581 // If we have a permitted list add all system input methods. 4582 if (result != null) { 4583 InputMethodManager inputMethodManager = (InputMethodManager) mContext 4584 .getSystemService(Context.INPUT_METHOD_SERVICE); 4585 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 4586 long id = Binder.clearCallingIdentity(); 4587 try { 4588 IPackageManager pm = AppGlobals.getPackageManager(); 4589 if (imes != null) { 4590 for (InputMethodInfo ime : imes) { 4591 String packageName = ime.getPackageName(); 4592 try { 4593 ApplicationInfo applicationInfo = pm.getApplicationInfo( 4594 packageName, PackageManager.GET_UNINSTALLED_PACKAGES, 4595 userId); 4596 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 4597 result.add(packageName); 4598 } 4599 } catch (RemoteException e) { 4600 Log.i(LOG_TAG, "Input method for missing package", e); 4601 } 4602 } 4603 } 4604 } finally { 4605 restoreCallingIdentity(id); 4606 } 4607 } 4608 return result; 4609 } 4610 } 4611 4612 @Override 4613 public UserHandle createUser(ComponentName who, String name) { 4614 synchronized (this) { 4615 if (who == null) { 4616 throw new NullPointerException("ComponentName is null"); 4617 } 4618 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4619 4620 long id = Binder.clearCallingIdentity(); 4621 try { 4622 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 4623 if (userInfo != null) { 4624 return userInfo.getUserHandle(); 4625 } 4626 return null; 4627 } finally { 4628 restoreCallingIdentity(id); 4629 } 4630 } 4631 } 4632 4633 @Override 4634 public UserHandle createAndInitializeUser(ComponentName who, String name, 4635 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 4636 UserHandle user = createUser(who, name); 4637 long id = Binder.clearCallingIdentity(); 4638 try { 4639 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 4640 final IPackageManager ipm = AppGlobals.getPackageManager(); 4641 IActivityManager activityManager = ActivityManagerNative.getDefault(); 4642 4643 try { 4644 // Install the profile owner if not present. 4645 if (!ipm.isPackageAvailable(profileOwnerPkg, user.getIdentifier())) { 4646 ipm.installExistingPackageAsUser(profileOwnerPkg, user.getIdentifier()); 4647 } 4648 4649 // Start user in background. 4650 activityManager.startUserInBackground(user.getIdentifier()); 4651 } catch (RemoteException e) { 4652 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 4653 } 4654 4655 setActiveAdmin(profileOwnerComponent, true, user.getIdentifier(), adminExtras); 4656 setProfileOwner(profileOwnerComponent, ownerName, user.getIdentifier()); 4657 return user; 4658 } finally { 4659 restoreCallingIdentity(id); 4660 } 4661 } 4662 4663 @Override 4664 public boolean removeUser(ComponentName who, UserHandle userHandle) { 4665 synchronized (this) { 4666 if (who == null) { 4667 throw new NullPointerException("ComponentName is null"); 4668 } 4669 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4670 4671 long id = Binder.clearCallingIdentity(); 4672 try { 4673 return mUserManager.removeUser(userHandle.getIdentifier()); 4674 } finally { 4675 restoreCallingIdentity(id); 4676 } 4677 } 4678 } 4679 4680 @Override 4681 public boolean switchUser(ComponentName who, UserHandle userHandle) { 4682 synchronized (this) { 4683 if (who == null) { 4684 throw new NullPointerException("ComponentName is null"); 4685 } 4686 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4687 4688 long id = Binder.clearCallingIdentity(); 4689 try { 4690 int userId = UserHandle.USER_OWNER; 4691 if (userHandle != null) { 4692 userId = userHandle.getIdentifier(); 4693 } 4694 return ActivityManagerNative.getDefault().switchUser(userId); 4695 } catch (RemoteException e) { 4696 Log.e(LOG_TAG, "Couldn't switch user", e); 4697 return false; 4698 } finally { 4699 restoreCallingIdentity(id); 4700 } 4701 } 4702 } 4703 4704 @Override 4705 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 4706 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4707 4708 synchronized (this) { 4709 if (who == null) { 4710 throw new NullPointerException("ComponentName is null"); 4711 } 4712 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4713 4714 long id = Binder.clearCallingIdentity(); 4715 try { 4716 return mUserManager.getApplicationRestrictions(packageName, userHandle); 4717 } finally { 4718 restoreCallingIdentity(id); 4719 } 4720 } 4721 } 4722 4723 @Override 4724 public void setUserRestriction(ComponentName who, String key, boolean enabled) { 4725 final UserHandle user = new UserHandle(UserHandle.getCallingUserId()); 4726 final int userHandle = user.getIdentifier(); 4727 synchronized (this) { 4728 if (who == null) { 4729 throw new NullPointerException("ComponentName is null"); 4730 } 4731 ActiveAdmin activeAdmin = 4732 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4733 boolean isDeviceOwner = isDeviceOwner(activeAdmin.info.getPackageName()); 4734 if (!isDeviceOwner && userHandle != UserHandle.USER_OWNER 4735 && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) { 4736 throw new SecurityException("Profile owners cannot set user restriction " + key); 4737 } 4738 boolean alreadyRestricted = mUserManager.hasUserRestriction(key, user); 4739 4740 IAudioService iAudioService = null; 4741 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key) 4742 || UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4743 iAudioService = IAudioService.Stub.asInterface( 4744 ServiceManager.getService(Context.AUDIO_SERVICE)); 4745 } 4746 4747 if (enabled && !alreadyRestricted) { 4748 try { 4749 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 4750 iAudioService.setMicrophoneMute(true, who.getPackageName()); 4751 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4752 iAudioService.setMasterMute(true, 0, who.getPackageName(), null); 4753 } 4754 } catch (RemoteException re) { 4755 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 4756 } 4757 } 4758 long id = Binder.clearCallingIdentity(); 4759 try { 4760 if (enabled && !alreadyRestricted) { 4761 if (UserManager.DISALLOW_CONFIG_WIFI.equals(key)) { 4762 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4763 Settings.Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON, 0, 4764 userHandle); 4765 } else if (UserManager.DISALLOW_USB_FILE_TRANSFER.equals(key)) { 4766 UsbManager manager = 4767 (UsbManager) mContext.getSystemService(Context.USB_SERVICE); 4768 manager.setCurrentFunction("none", false); 4769 } else if (UserManager.DISALLOW_SHARE_LOCATION.equals(key)) { 4770 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4771 Settings.Secure.LOCATION_MODE, Settings.Secure.LOCATION_MODE_OFF, 4772 userHandle); 4773 Settings.Secure.putStringForUser(mContext.getContentResolver(), 4774 Settings.Secure.LOCATION_PROVIDERS_ALLOWED, "", 4775 userHandle); 4776 } else if (UserManager.DISALLOW_DEBUGGING_FEATURES.equals(key)) { 4777 // Only disable adb if changing for primary user, since it is global 4778 if (userHandle == UserHandle.USER_OWNER) { 4779 Settings.Global.putStringForUser(mContext.getContentResolver(), 4780 Settings.Global.ADB_ENABLED, "0", userHandle); 4781 } 4782 } else if (UserManager.ENSURE_VERIFY_APPS.equals(key)) { 4783 Settings.Global.putStringForUser(mContext.getContentResolver(), 4784 Settings.Global.PACKAGE_VERIFIER_ENABLE, "1", 4785 userHandle); 4786 Settings.Global.putStringForUser(mContext.getContentResolver(), 4787 Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, "1", 4788 userHandle); 4789 } else if (UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES.equals(key)) { 4790 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4791 Settings.Secure.INSTALL_NON_MARKET_APPS, 0, 4792 userHandle); 4793 } 4794 } 4795 mUserManager.setUserRestriction(key, enabled, user); 4796 } finally { 4797 restoreCallingIdentity(id); 4798 } 4799 if (!enabled && alreadyRestricted) { 4800 try { 4801 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 4802 iAudioService.setMicrophoneMute(false, who.getPackageName()); 4803 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4804 iAudioService.setMasterMute(false, 0, who.getPackageName(), null); 4805 } 4806 } catch (RemoteException re) { 4807 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 4808 } 4809 } 4810 sendChangedNotification(userHandle); 4811 } 4812 } 4813 4814 @Override 4815 public boolean setApplicationHidden(ComponentName who, String packageName, 4816 boolean hidden) { 4817 int callingUserId = UserHandle.getCallingUserId(); 4818 synchronized (this) { 4819 if (who == null) { 4820 throw new NullPointerException("ComponentName is null"); 4821 } 4822 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4823 4824 long id = Binder.clearCallingIdentity(); 4825 try { 4826 IPackageManager pm = AppGlobals.getPackageManager(); 4827 return pm.setApplicationHiddenSettingAsUser(packageName, hidden, callingUserId); 4828 } catch (RemoteException re) { 4829 // shouldn't happen 4830 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 4831 } finally { 4832 restoreCallingIdentity(id); 4833 } 4834 return false; 4835 } 4836 } 4837 4838 @Override 4839 public boolean isApplicationHidden(ComponentName who, String packageName) { 4840 int callingUserId = UserHandle.getCallingUserId(); 4841 synchronized (this) { 4842 if (who == null) { 4843 throw new NullPointerException("ComponentName is null"); 4844 } 4845 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4846 4847 long id = Binder.clearCallingIdentity(); 4848 try { 4849 IPackageManager pm = AppGlobals.getPackageManager(); 4850 return pm.getApplicationHiddenSettingAsUser(packageName, callingUserId); 4851 } catch (RemoteException re) { 4852 // shouldn't happen 4853 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 4854 } finally { 4855 restoreCallingIdentity(id); 4856 } 4857 return false; 4858 } 4859 } 4860 4861 @Override 4862 public void enableSystemApp(ComponentName who, String packageName) { 4863 synchronized (this) { 4864 if (who == null) { 4865 throw new NullPointerException("ComponentName is null"); 4866 } 4867 4868 // This API can only be called by an active device admin, 4869 // so try to retrieve it to check that the caller is one. 4870 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4871 4872 int userId = UserHandle.getCallingUserId(); 4873 long id = Binder.clearCallingIdentity(); 4874 4875 try { 4876 if (DBG) { 4877 Slog.v(LOG_TAG, "installing " + packageName + " for " 4878 + userId); 4879 } 4880 4881 UserManager um = UserManager.get(mContext); 4882 UserInfo primaryUser = um.getProfileParent(userId); 4883 4884 // Call did not come from a managed profile 4885 if (primaryUser == null) { 4886 primaryUser = um.getUserInfo(userId); 4887 } 4888 4889 IPackageManager pm = AppGlobals.getPackageManager(); 4890 if (!isSystemApp(pm, packageName, primaryUser.id)) { 4891 throw new IllegalArgumentException("Only system apps can be enabled this way."); 4892 } 4893 4894 // Install the app. 4895 pm.installExistingPackageAsUser(packageName, userId); 4896 4897 } catch (RemoteException re) { 4898 // shouldn't happen 4899 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 4900 } finally { 4901 restoreCallingIdentity(id); 4902 } 4903 } 4904 } 4905 4906 @Override 4907 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 4908 synchronized (this) { 4909 if (who == null) { 4910 throw new NullPointerException("ComponentName is null"); 4911 } 4912 4913 // This API can only be called by an active device admin, 4914 // so try to retrieve it to check that the caller is one. 4915 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4916 4917 int userId = UserHandle.getCallingUserId(); 4918 long id = Binder.clearCallingIdentity(); 4919 4920 try { 4921 UserManager um = UserManager.get(mContext); 4922 UserInfo primaryUser = um.getProfileParent(userId); 4923 4924 // Call did not come from a managed profile. 4925 if (primaryUser == null) { 4926 primaryUser = um.getUserInfo(userId); 4927 } 4928 4929 IPackageManager pm = AppGlobals.getPackageManager(); 4930 List<ResolveInfo> activitiesToEnable = pm.queryIntentActivities(intent, 4931 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 4932 0, // no flags 4933 primaryUser.id); 4934 4935 if (DBG) Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 4936 int numberOfAppsInstalled = 0; 4937 if (activitiesToEnable != null) { 4938 for (ResolveInfo info : activitiesToEnable) { 4939 if (info.activityInfo != null) { 4940 4941 if (!isSystemApp(pm, info.activityInfo.packageName, primaryUser.id)) { 4942 throw new IllegalArgumentException( 4943 "Only system apps can be enabled this way."); 4944 } 4945 4946 4947 numberOfAppsInstalled++; 4948 pm.installExistingPackageAsUser(info.activityInfo.packageName, userId); 4949 } 4950 } 4951 } 4952 return numberOfAppsInstalled; 4953 } catch (RemoteException e) { 4954 // shouldn't happen 4955 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 4956 return 0; 4957 } finally { 4958 restoreCallingIdentity(id); 4959 } 4960 } 4961 } 4962 4963 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 4964 throws RemoteException { 4965 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 4966 userId); 4967 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) > 0; 4968 } 4969 4970 @Override 4971 public void setAccountManagementDisabled(ComponentName who, String accountType, 4972 boolean disabled) { 4973 if (!mHasFeature) { 4974 return; 4975 } 4976 synchronized (this) { 4977 if (who == null) { 4978 throw new NullPointerException("ComponentName is null"); 4979 } 4980 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4981 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4982 if (disabled) { 4983 ap.accountTypesWithManagementDisabled.add(accountType); 4984 } else { 4985 ap.accountTypesWithManagementDisabled.remove(accountType); 4986 } 4987 saveSettingsLocked(UserHandle.getCallingUserId()); 4988 } 4989 } 4990 4991 @Override 4992 public String[] getAccountTypesWithManagementDisabled() { 4993 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 4994 } 4995 4996 @Override 4997 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 4998 enforceCrossUserPermission(userId); 4999 if (!mHasFeature) { 5000 return null; 5001 } 5002 synchronized (this) { 5003 DevicePolicyData policy = getUserData(userId); 5004 final int N = policy.mAdminList.size(); 5005 HashSet<String> resultSet = new HashSet<String>(); 5006 for (int i = 0; i < N; i++) { 5007 ActiveAdmin admin = policy.mAdminList.get(i); 5008 resultSet.addAll(admin.accountTypesWithManagementDisabled); 5009 } 5010 return resultSet.toArray(new String[resultSet.size()]); 5011 } 5012 } 5013 5014 @Override 5015 public void setUninstallBlocked(ComponentName who, String packageName, 5016 boolean uninstallBlocked) { 5017 final int userId = UserHandle.getCallingUserId(); 5018 5019 synchronized (this) { 5020 if (who == null) { 5021 throw new NullPointerException("ComponentName is null"); 5022 } 5023 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5024 5025 long id = Binder.clearCallingIdentity(); 5026 try { 5027 IPackageManager pm = AppGlobals.getPackageManager(); 5028 pm.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 5029 } catch (RemoteException re) { 5030 // Shouldn't happen. 5031 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 5032 } finally { 5033 restoreCallingIdentity(id); 5034 } 5035 } 5036 } 5037 5038 @Override 5039 public boolean isUninstallBlocked(ComponentName who, String packageName) { 5040 final int userId = UserHandle.getCallingUserId(); 5041 5042 synchronized (this) { 5043 if (who == null) { 5044 throw new NullPointerException("ComponentName is null"); 5045 } 5046 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5047 5048 long id = Binder.clearCallingIdentity(); 5049 try { 5050 IPackageManager pm = AppGlobals.getPackageManager(); 5051 return pm.getBlockUninstallForUser(packageName, userId); 5052 } catch (RemoteException re) { 5053 // Shouldn't happen. 5054 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 5055 } finally { 5056 restoreCallingIdentity(id); 5057 } 5058 } 5059 return false; 5060 } 5061 5062 @Override 5063 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 5064 if (!mHasFeature) { 5065 return; 5066 } 5067 synchronized (this) { 5068 if (who == null) { 5069 throw new NullPointerException("ComponentName is null"); 5070 } 5071 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5072 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5073 if (admin.disableCallerId != disabled) { 5074 admin.disableCallerId = disabled; 5075 saveSettingsLocked(UserHandle.getCallingUserId()); 5076 } 5077 } 5078 } 5079 5080 @Override 5081 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 5082 if (!mHasFeature) { 5083 return false; 5084 } 5085 5086 synchronized (this) { 5087 if (who == null) { 5088 throw new NullPointerException("ComponentName is null"); 5089 } 5090 5091 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5092 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5093 return admin.disableCallerId; 5094 } 5095 } 5096 5097 @Override 5098 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 5099 // TODO: Should there be a check to make sure this relationship is within a profile group? 5100 //enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 5101 synchronized (this) { 5102 ActiveAdmin admin = getProfileOwnerAdmin(userId); 5103 return (admin != null) ? admin.disableCallerId : false; 5104 } 5105 } 5106 5107 /** 5108 * Sets which packages may enter lock task mode. 5109 * 5110 * This function can only be called by the device owner. 5111 * @param components The list of components allowed to enter lock task mode. 5112 */ 5113 public void setLockTaskPackages(ComponentName who, String[] packages) throws SecurityException { 5114 synchronized (this) { 5115 if (who == null) { 5116 throw new NullPointerException("ComponentName is null"); 5117 } 5118 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5119 5120 int userHandle = Binder.getCallingUserHandle().getIdentifier(); 5121 DevicePolicyData policy = getUserData(userHandle); 5122 policy.mLockTaskPackages.clear(); 5123 if (packages != null) { 5124 for (int j = 0; j < packages.length; j++) { 5125 String pkg = packages[j]; 5126 policy.mLockTaskPackages.add(pkg); 5127 } 5128 } 5129 5130 // Store the settings persistently. 5131 saveSettingsLocked(userHandle); 5132 } 5133 } 5134 5135 /** 5136 * This function returns the list of components allowed to start the task lock mode. 5137 */ 5138 public String[] getLockTaskPackages(ComponentName who) { 5139 synchronized (this) { 5140 if (who == null) { 5141 throw new NullPointerException("ComponentName is null"); 5142 } 5143 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5144 5145 int userHandle = Binder.getCallingUserHandle().getIdentifier(); 5146 DevicePolicyData policy = getUserData(userHandle); 5147 return policy.mLockTaskPackages.toArray(new String[0]); 5148 } 5149 } 5150 5151 /** 5152 * This function lets the caller know whether the given package is allowed to start the 5153 * lock task mode. 5154 * @param pkg The package to check 5155 */ 5156 public boolean isLockTaskPermitted(String pkg) { 5157 // Get current user's devicepolicy 5158 int uid = Binder.getCallingUid(); 5159 int userHandle = UserHandle.getUserId(uid); 5160 DevicePolicyData policy = getUserData(userHandle); 5161 synchronized (this) { 5162 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 5163 String lockTaskPackage = policy.mLockTaskPackages.get(i); 5164 5165 // If the given package equals one of the packages stored our list, 5166 // we allow this package to start lock task mode. 5167 if (lockTaskPackage.equals(pkg)) { 5168 return true; 5169 } 5170 } 5171 } 5172 return false; 5173 } 5174 5175 @Override 5176 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 5177 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 5178 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 5179 } 5180 synchronized (this) { 5181 final DevicePolicyData policy = getUserData(userHandle); 5182 Bundle adminExtras = new Bundle(); 5183 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 5184 for (ActiveAdmin admin : policy.mAdminList) { 5185 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 5186 boolean ownsProfile = (getProfileOwner(userHandle) != null 5187 && getProfileOwner(userHandle).equals(admin.info.getPackageName())); 5188 if (ownsDevice || ownsProfile) { 5189 if (isEnabled) { 5190 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 5191 adminExtras, null); 5192 } else { 5193 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 5194 } 5195 } 5196 } 5197 } 5198 } 5199 5200 @Override 5201 public void setGlobalSetting(ComponentName who, String setting, String value) { 5202 final ContentResolver contentResolver = mContext.getContentResolver(); 5203 5204 synchronized (this) { 5205 if (who == null) { 5206 throw new NullPointerException("ComponentName is null"); 5207 } 5208 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5209 5210 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 5211 throw new SecurityException(String.format( 5212 "Permission denial: device owners cannot update %1$s", setting)); 5213 } 5214 5215 long id = Binder.clearCallingIdentity(); 5216 try { 5217 Settings.Global.putString(contentResolver, setting, value); 5218 } finally { 5219 restoreCallingIdentity(id); 5220 } 5221 } 5222 } 5223 5224 @Override 5225 public void setSecureSetting(ComponentName who, String setting, String value) { 5226 int callingUserId = UserHandle.getCallingUserId(); 5227 final ContentResolver contentResolver = mContext.getContentResolver(); 5228 5229 synchronized (this) { 5230 if (who == null) { 5231 throw new NullPointerException("ComponentName is null"); 5232 } 5233 ActiveAdmin activeAdmin = 5234 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5235 5236 if (isDeviceOwner(activeAdmin.info.getPackageName())) { 5237 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 5238 throw new SecurityException(String.format( 5239 "Permission denial: Device owners cannot update %1$s", setting)); 5240 } 5241 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 5242 throw new SecurityException(String.format( 5243 "Permission denial: Profile owners cannot update %1$s", setting)); 5244 } 5245 5246 long id = Binder.clearCallingIdentity(); 5247 try { 5248 Settings.Secure.putStringForUser(contentResolver, setting, value, callingUserId); 5249 } finally { 5250 restoreCallingIdentity(id); 5251 } 5252 } 5253 } 5254 5255 @Override 5256 public void setMasterVolumeMuted(ComponentName who, boolean on) { 5257 final ContentResolver contentResolver = mContext.getContentResolver(); 5258 5259 synchronized (this) { 5260 if (who == null) { 5261 throw new NullPointerException("ComponentName is null"); 5262 } 5263 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5264 5265 IAudioService iAudioService = IAudioService.Stub.asInterface( 5266 ServiceManager.getService(Context.AUDIO_SERVICE)); 5267 try{ 5268 iAudioService.setMasterMute(on, 0, who.getPackageName(), null); 5269 } catch (RemoteException re) { 5270 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 5271 } 5272 } 5273 } 5274 5275 @Override 5276 public boolean isMasterVolumeMuted(ComponentName who) { 5277 final ContentResolver contentResolver = mContext.getContentResolver(); 5278 5279 synchronized (this) { 5280 if (who == null) { 5281 throw new NullPointerException("ComponentName is null"); 5282 } 5283 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5284 5285 AudioManager audioManager = 5286 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 5287 return audioManager.isMasterMute(); 5288 } 5289 } 5290 5291 /** 5292 * We need to update the internal state of whether a user has completed setup once. After 5293 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 5294 * as we don't trust any apps that might try to reset it. 5295 * <p> 5296 * Unfortunately, we don't know which user's setup state was changed, so we write all of 5297 * them. 5298 */ 5299 void updateUserSetupComplete() { 5300 List<UserInfo> users = mUserManager.getUsers(true); 5301 ContentResolver resolver = mContext.getContentResolver(); 5302 final int N = users.size(); 5303 for (int i = 0; i < N; i++) { 5304 int userHandle = users.get(i).id; 5305 if (Settings.Secure.getIntForUser(resolver, Settings.Secure.USER_SETUP_COMPLETE, 0, 5306 userHandle) != 0) { 5307 DevicePolicyData policy = getUserData(userHandle); 5308 if (!policy.mUserSetupComplete) { 5309 policy.mUserSetupComplete = true; 5310 synchronized (this) { 5311 saveSettingsLocked(userHandle); 5312 } 5313 } 5314 } 5315 } 5316 } 5317 5318 private class SetupContentObserver extends ContentObserver { 5319 5320 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 5321 Settings.Secure.USER_SETUP_COMPLETE); 5322 5323 public SetupContentObserver(Handler handler) { 5324 super(handler); 5325 } 5326 5327 void register(ContentResolver resolver) { 5328 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 5329 } 5330 5331 @Override 5332 public void onChange(boolean selfChange, Uri uri) { 5333 if (mUserSetupComplete.equals(uri)) { 5334 updateUserSetupComplete(); 5335 } 5336 } 5337 } 5338 5339 private final class LocalService extends DevicePolicyManagerInternal { 5340 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 5341 5342 @Override 5343 public List<String> getCrossProfileWidgetProviders(int profileId) { 5344 synchronized (DevicePolicyManagerService.this) { 5345 if (mDeviceOwner == null) { 5346 return Collections.emptyList(); 5347 } 5348 ComponentName ownerComponent = mDeviceOwner.getProfileOwnerComponent(profileId); 5349 if (ownerComponent == null) { 5350 return Collections.emptyList(); 5351 } 5352 5353 DevicePolicyData policy = getUserData(profileId); 5354 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 5355 5356 if (admin == null || admin.crossProfileWidgetProviders == null 5357 || admin.crossProfileWidgetProviders.isEmpty()) { 5358 return Collections.emptyList(); 5359 } 5360 5361 return admin.crossProfileWidgetProviders; 5362 } 5363 } 5364 5365 @Override 5366 public void addOnCrossProfileWidgetProvidersChangeListener( 5367 OnCrossProfileWidgetProvidersChangeListener listener) { 5368 synchronized (DevicePolicyManagerService.this) { 5369 if (mWidgetProviderListeners == null) { 5370 mWidgetProviderListeners = new ArrayList<>(); 5371 } 5372 if (!mWidgetProviderListeners.contains(listener)) { 5373 mWidgetProviderListeners.add(listener); 5374 } 5375 } 5376 } 5377 5378 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 5379 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 5380 synchronized (DevicePolicyManagerService.this) { 5381 listeners = new ArrayList<>(mWidgetProviderListeners); 5382 } 5383 final int listenerCount = listeners.size(); 5384 for (int i = 0; i < listenerCount; i++) { 5385 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 5386 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 5387 } 5388 } 5389 } 5390} 5391