DevicePolicyManagerService.java revision abc03c7ae8c9c628de319819a10ce2cbaedf1c86
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.devicepolicy; 18 19import static android.Manifest.permission.MANAGE_CA_CERTIFICATES; 20import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 21import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 22import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES; 23 24import android.accessibilityservice.AccessibilityServiceInfo; 25import android.accounts.AccountManager; 26import android.app.Activity; 27import android.app.ActivityManagerNative; 28import android.app.AlarmManager; 29import android.app.AppGlobals; 30import android.app.IActivityManager; 31import android.app.Notification; 32import android.app.NotificationManager; 33import android.app.PendingIntent; 34import android.app.admin.DeviceAdminInfo; 35import android.app.admin.DeviceAdminReceiver; 36import android.app.admin.DevicePolicyManager; 37import android.app.admin.DevicePolicyManagerInternal; 38import android.app.admin.IDevicePolicyManager; 39import android.app.backup.IBackupManager; 40import android.content.BroadcastReceiver; 41import android.content.ComponentName; 42import android.content.ContentResolver; 43import android.content.Context; 44import android.content.Intent; 45import android.content.IntentFilter; 46import android.content.pm.ApplicationInfo; 47import android.content.pm.IPackageManager; 48import android.content.pm.PackageManager; 49import android.content.pm.PackageManager.NameNotFoundException; 50import android.content.pm.ResolveInfo; 51import android.content.pm.ServiceInfo; 52import android.content.pm.UserInfo; 53import android.database.ContentObserver; 54import android.hardware.usb.UsbManager; 55import android.media.AudioManager; 56import android.media.IAudioService; 57import android.net.ConnectivityManager; 58import android.net.ProxyInfo; 59import android.net.Uri; 60import android.os.AsyncTask; 61import android.os.Binder; 62import android.os.Bundle; 63import android.os.Environment; 64import android.os.FileUtils; 65import android.os.Handler; 66import android.os.IBinder; 67import android.os.PersistableBundle; 68import android.os.PowerManager; 69import android.os.PowerManagerInternal; 70import android.os.Process; 71import android.os.RecoverySystem; 72import android.os.RemoteCallback; 73import android.os.RemoteException; 74import android.os.ServiceManager; 75import android.os.SystemClock; 76import android.os.SystemProperties; 77import android.os.UserHandle; 78import android.os.UserManager; 79import android.provider.Settings; 80import android.security.Credentials; 81import android.security.IKeyChainAliasCallback; 82import android.security.IKeyChainService; 83import android.security.KeyChain; 84import android.security.KeyChain.KeyChainConnection; 85import android.text.TextUtils; 86import android.service.persistentdata.PersistentDataBlockManager; 87import android.util.Log; 88import android.util.PrintWriterPrinter; 89import android.util.Printer; 90import android.util.Slog; 91import android.util.SparseArray; 92import android.util.Xml; 93import android.view.accessibility.AccessibilityManager; 94import android.view.accessibility.IAccessibilityManager; 95import android.view.inputmethod.InputMethodInfo; 96import android.view.inputmethod.InputMethodManager; 97import android.view.IWindowManager; 98 99import com.android.internal.R; 100import com.android.internal.os.storage.ExternalStorageFormatter; 101import com.android.internal.util.FastXmlSerializer; 102import com.android.internal.util.JournaledFile; 103import com.android.internal.util.Preconditions; 104import com.android.internal.util.XmlUtils; 105import com.android.internal.widget.LockPatternUtils; 106import com.android.server.LocalServices; 107import com.android.server.SystemService; 108import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 109 110import org.xmlpull.v1.XmlPullParser; 111 112import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 113import static org.xmlpull.v1.XmlPullParser.END_TAG; 114import static org.xmlpull.v1.XmlPullParser.TEXT; 115 116import org.xmlpull.v1.XmlPullParserException; 117import org.xmlpull.v1.XmlSerializer; 118 119import java.io.ByteArrayInputStream; 120import java.io.File; 121import java.io.FileDescriptor; 122import java.io.FileInputStream; 123import java.io.FileNotFoundException; 124import java.io.FileOutputStream; 125import java.io.IOException; 126import java.io.PrintWriter; 127import java.security.cert.CertificateException; 128import java.security.cert.CertificateFactory; 129import java.security.cert.X509Certificate; 130import java.text.DateFormat; 131import java.util.ArrayList; 132import java.util.Collections; 133import java.util.Date; 134import java.util.HashMap; 135import java.util.HashSet; 136import java.util.List; 137import java.util.Map.Entry; 138import java.util.Set; 139 140/** 141 * Implementation of the device policy APIs. 142 */ 143public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 144 145 private static final String LOG_TAG = "DevicePolicyManagerService"; 146 147 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 148 149 private static final String LOCK_TASK_COMPONENTS_XML = "lock-task-component"; 150 151 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 152 153 private static final long MS_PER_DAY = 86400 * 1000; 154 155 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 156 157 protected static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 158 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 159 160 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 161 162 private static final boolean DBG = false; 163 164 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 165 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 166 167 private static final Set<String> DEVICE_OWNER_USER_RESTRICTIONS; 168 static { 169 DEVICE_OWNER_USER_RESTRICTIONS = new HashSet(); 170 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_USB_FILE_TRANSFER); 171 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_TETHERING); 172 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_FACTORY_RESET); 173 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADD_USER); 174 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_CELL_BROADCASTS); 175 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS); 176 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_MOUNT_PHYSICAL_MEDIA); 177 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_UNMUTE_MICROPHONE); 178 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_ADJUST_VOLUME); 179 DEVICE_OWNER_USER_RESTRICTIONS.add(UserManager.DISALLOW_SMS); 180 } 181 182 private static final Set<String> SECURE_SETTINGS_WHITELIST; 183 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 184 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 185 static { 186 SECURE_SETTINGS_WHITELIST = new HashSet(); 187 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 188 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 189 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 190 191 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new HashSet(); 192 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 193 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 194 195 GLOBAL_SETTINGS_WHITELIST = new HashSet(); 196 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 197 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 198 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 199 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 200 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 201 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.MODE_RINGER); 202 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.NETWORK_PREFERENCE); 203 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 204 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 205 } 206 207 final Context mContext; 208 final UserManager mUserManager; 209 final PowerManager.WakeLock mWakeLock; 210 211 final LocalService mLocalService; 212 213 final PowerManager mPowerManager; 214 final PowerManagerInternal mPowerManagerInternal; 215 216 IWindowManager mIWindowManager; 217 NotificationManager mNotificationManager; 218 219 // Stores and loads state on device and profile owners. 220 private DeviceOwner mDeviceOwner; 221 222 /** 223 * Whether or not device admin feature is supported. If it isn't return defaults for all 224 * public methods. 225 */ 226 private boolean mHasFeature; 227 228 public static final class Lifecycle extends SystemService { 229 private DevicePolicyManagerService mService; 230 231 public Lifecycle(Context context) { 232 super(context); 233 mService = new DevicePolicyManagerService(context); 234 } 235 236 @Override 237 public void onStart() { 238 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 239 } 240 241 @Override 242 public void onBootPhase(int phase) { 243 if (phase == PHASE_LOCK_SETTINGS_READY) { 244 mService.systemReady(); 245 } 246 } 247 } 248 249 public static class DevicePolicyData { 250 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 251 int mActivePasswordLength = 0; 252 int mActivePasswordUpperCase = 0; 253 int mActivePasswordLowerCase = 0; 254 int mActivePasswordLetters = 0; 255 int mActivePasswordNumeric = 0; 256 int mActivePasswordSymbols = 0; 257 int mActivePasswordNonLetter = 0; 258 int mFailedPasswordAttempts = 0; 259 260 int mUserHandle; 261 int mPasswordOwner = -1; 262 long mLastMaximumTimeToLock = -1; 263 boolean mUserSetupComplete = false; 264 265 final HashMap<ComponentName, ActiveAdmin> mAdminMap 266 = new HashMap<ComponentName, ActiveAdmin>(); 267 final ArrayList<ActiveAdmin> mAdminList 268 = new ArrayList<ActiveAdmin>(); 269 final ArrayList<ComponentName> mRemovingAdmins 270 = new ArrayList<ComponentName>(); 271 272 // This is the list of component allowed to start lock task mode. 273 final List<String> mLockTaskPackages = new ArrayList<String>(); 274 275 ComponentName mRestrictionsProvider; 276 277 public DevicePolicyData(int userHandle) { 278 mUserHandle = userHandle; 279 } 280 } 281 282 final SparseArray<DevicePolicyData> mUserData = new SparseArray<DevicePolicyData>(); 283 284 Handler mHandler = new Handler(); 285 286 BroadcastReceiver mReceiver = new BroadcastReceiver() { 287 @Override 288 public void onReceive(Context context, Intent intent) { 289 final String action = intent.getAction(); 290 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 291 getSendingUserId()); 292 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 293 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 294 if (DBG) Slog.v(LOG_TAG, "Sending password expiration notifications for action " 295 + action + " for user " + userHandle); 296 mHandler.post(new Runnable() { 297 public void run() { 298 handlePasswordExpirationNotification(userHandle); 299 } 300 }); 301 } 302 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 303 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 304 new MonitoringCertNotificationTask().execute(intent); 305 } 306 if (Intent.ACTION_USER_REMOVED.equals(action)) { 307 removeUserData(userHandle); 308 } else if (Intent.ACTION_USER_STARTED.equals(action) 309 || Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 310 311 if (Intent.ACTION_USER_STARTED.equals(action)) { 312 // Reset the policy data 313 synchronized (DevicePolicyManagerService.this) { 314 mUserData.remove(userHandle); 315 } 316 } 317 handlePackagesChanged(null /* check all admins */, userHandle); 318 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 319 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 320 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 321 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 322 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 323 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 324 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 325 } 326 } 327 }; 328 329 static class ActiveAdmin { 330 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 331 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 332 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 333 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 334 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 335 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 336 private static final String TAG_ACCOUNT_TYPE = "account-type"; 337 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 338 = "permitted-accessiblity-services"; 339 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 340 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 341 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 342 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 343 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 344 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 345 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 346 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 347 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 348 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 349 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 350 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 351 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 352 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 353 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 354 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 355 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 356 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 357 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 358 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 359 private static final String ATTR_VALUE = "value"; 360 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 361 private static final String TAG_POLICIES = "policies"; 362 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 363 "cross-profile-widget-providers"; 364 private static final String TAG_PROVIDER = "provider"; 365 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 366 367 final DeviceAdminInfo info; 368 369 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 370 371 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 372 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 373 374 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 375 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 376 377 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 378 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 379 380 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 381 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 382 383 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 384 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 385 386 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 387 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 388 389 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 390 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 391 392 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 393 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 394 395 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 396 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 397 398 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 399 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 400 401 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 402 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 403 404 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 405 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 406 407 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 408 409 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 410 411 boolean encryptionRequested = false; 412 boolean disableCamera = false; 413 boolean disableCallerId = false; 414 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 415 boolean requireAutoTime = false; // Can only be set by a device owner. 416 417 static class TrustAgentInfo { 418 public PersistableBundle options; 419 TrustAgentInfo(PersistableBundle bundle) { 420 options = bundle; 421 } 422 } 423 424 Set<String> accountTypesWithManagementDisabled = new HashSet<String>(); 425 426 // The list of permitted accessibility services package namesas set by a profile 427 // or device owner. Null means all accessibility services are allowed, empty means 428 // none except system services are allowed. 429 List<String> permittedAccessiblityServices; 430 431 // The list of permitted input methods package names as set by a profile or device owner. 432 // Null means all input methods are allowed, empty means none except system imes are 433 // allowed. 434 List<String> permittedInputMethods; 435 436 // TODO: review implementation decisions with frameworks team 437 boolean specifiesGlobalProxy = false; 438 String globalProxySpec = null; 439 String globalProxyExclusionList = null; 440 441 HashMap<String, TrustAgentInfo> trustAgentInfos = new HashMap<String, TrustAgentInfo>(); 442 443 List<String> crossProfileWidgetProviders; 444 445 ActiveAdmin(DeviceAdminInfo _info) { 446 info = _info; 447 } 448 449 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 450 451 public UserHandle getUserHandle() { 452 return new UserHandle(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 453 } 454 455 void writeToXml(XmlSerializer out) 456 throws IllegalArgumentException, IllegalStateException, IOException { 457 out.startTag(null, TAG_POLICIES); 458 info.writePoliciesToXml(out); 459 out.endTag(null, TAG_POLICIES); 460 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 461 out.startTag(null, TAG_PASSWORD_QUALITY); 462 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 463 out.endTag(null, TAG_PASSWORD_QUALITY); 464 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 465 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 466 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 467 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 468 } 469 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 470 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 471 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 472 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 473 } 474 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 475 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 476 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 477 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 478 } 479 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 480 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 481 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 482 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 483 } 484 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 485 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 486 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 487 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 488 } 489 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 490 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 491 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 492 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 493 } 494 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 495 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 496 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 497 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 498 } 499 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 500 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 501 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 502 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 503 } 504 } 505 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 506 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 507 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 508 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 509 } 510 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 511 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 512 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 513 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 514 } 515 if (specifiesGlobalProxy) { 516 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 517 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 518 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 519 if (globalProxySpec != null) { 520 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 521 out.attribute(null, ATTR_VALUE, globalProxySpec); 522 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 523 } 524 if (globalProxyExclusionList != null) { 525 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 526 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 527 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 528 } 529 } 530 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 531 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 532 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 533 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 534 } 535 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 536 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 537 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 538 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 539 } 540 if (encryptionRequested) { 541 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 542 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 543 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 544 } 545 if (disableCamera) { 546 out.startTag(null, TAG_DISABLE_CAMERA); 547 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 548 out.endTag(null, TAG_DISABLE_CAMERA); 549 } 550 if (disableCallerId) { 551 out.startTag(null, TAG_DISABLE_CALLER_ID); 552 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 553 out.endTag(null, TAG_DISABLE_CALLER_ID); 554 } 555 if (disableScreenCapture) { 556 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 557 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 558 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 559 } 560 if (requireAutoTime) { 561 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 562 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 563 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 564 } 565 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 566 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 567 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 568 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 569 } 570 if (!accountTypesWithManagementDisabled.isEmpty()) { 571 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 572 for (String ac : accountTypesWithManagementDisabled) { 573 out.startTag(null, TAG_ACCOUNT_TYPE); 574 out.attribute(null, ATTR_VALUE, ac); 575 out.endTag(null, TAG_ACCOUNT_TYPE); 576 } 577 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 578 } 579 if (!trustAgentInfos.isEmpty()) { 580 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 581 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 582 for (Entry<String, TrustAgentInfo> entry : set) { 583 TrustAgentInfo trustAgentInfo = entry.getValue(); 584 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 585 out.attribute(null, ATTR_VALUE, entry.getKey()); 586 if (trustAgentInfo.options != null) { 587 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 588 try { 589 trustAgentInfo.options.saveToXml(out); 590 } catch (XmlPullParserException e) { 591 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 592 } 593 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 594 } 595 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 596 } 597 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 598 } 599 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 600 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 601 final int providerCount = crossProfileWidgetProviders.size(); 602 for (int i = 0; i < providerCount; i++) { 603 String provider = crossProfileWidgetProviders.get(i); 604 out.startTag(null, TAG_PROVIDER); 605 out.attribute(null, ATTR_VALUE, provider); 606 out.endTag(null, TAG_PROVIDER); 607 } 608 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 609 } 610 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 611 permittedAccessiblityServices); 612 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 613 } 614 615 void writePackageListToXml(XmlSerializer out, String outerTag, 616 List<String> packageList) 617 throws IllegalArgumentException, IllegalStateException, IOException { 618 if (packageList == null) { 619 return; 620 } 621 622 out.startTag(null, outerTag); 623 for (String packageName : packageList) { 624 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 625 out.attribute(null, ATTR_VALUE, packageName); 626 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 627 } 628 out.endTag(null, outerTag); 629 } 630 631 void readFromXml(XmlPullParser parser) 632 throws XmlPullParserException, IOException { 633 int outerDepth = parser.getDepth(); 634 int type; 635 while ((type=parser.next()) != END_DOCUMENT 636 && (type != END_TAG || parser.getDepth() > outerDepth)) { 637 if (type == END_TAG || type == TEXT) { 638 continue; 639 } 640 String tag = parser.getName(); 641 if (TAG_POLICIES.equals(tag)) { 642 info.readPoliciesFromXml(parser); 643 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 644 passwordQuality = Integer.parseInt( 645 parser.getAttributeValue(null, ATTR_VALUE)); 646 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 647 minimumPasswordLength = Integer.parseInt( 648 parser.getAttributeValue(null, ATTR_VALUE)); 649 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 650 passwordHistoryLength = Integer.parseInt( 651 parser.getAttributeValue(null, ATTR_VALUE)); 652 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 653 minimumPasswordUpperCase = Integer.parseInt( 654 parser.getAttributeValue(null, ATTR_VALUE)); 655 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 656 minimumPasswordLowerCase = Integer.parseInt( 657 parser.getAttributeValue(null, ATTR_VALUE)); 658 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 659 minimumPasswordLetters = Integer.parseInt( 660 parser.getAttributeValue(null, ATTR_VALUE)); 661 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 662 minimumPasswordNumeric = Integer.parseInt( 663 parser.getAttributeValue(null, ATTR_VALUE)); 664 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 665 minimumPasswordSymbols = Integer.parseInt( 666 parser.getAttributeValue(null, ATTR_VALUE)); 667 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 668 minimumPasswordNonLetter = Integer.parseInt( 669 parser.getAttributeValue(null, ATTR_VALUE)); 670 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 671 maximumTimeToUnlock = Long.parseLong( 672 parser.getAttributeValue(null, ATTR_VALUE)); 673 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 674 maximumFailedPasswordsForWipe = Integer.parseInt( 675 parser.getAttributeValue(null, ATTR_VALUE)); 676 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 677 specifiesGlobalProxy = Boolean.parseBoolean( 678 parser.getAttributeValue(null, ATTR_VALUE)); 679 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 680 globalProxySpec = 681 parser.getAttributeValue(null, ATTR_VALUE); 682 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 683 globalProxyExclusionList = 684 parser.getAttributeValue(null, ATTR_VALUE); 685 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 686 passwordExpirationTimeout = Long.parseLong( 687 parser.getAttributeValue(null, ATTR_VALUE)); 688 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 689 passwordExpirationDate = Long.parseLong( 690 parser.getAttributeValue(null, ATTR_VALUE)); 691 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 692 encryptionRequested = Boolean.parseBoolean( 693 parser.getAttributeValue(null, ATTR_VALUE)); 694 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 695 disableCamera = Boolean.parseBoolean( 696 parser.getAttributeValue(null, ATTR_VALUE)); 697 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 698 disableCallerId = Boolean.parseBoolean( 699 parser.getAttributeValue(null, ATTR_VALUE)); 700 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 701 disableScreenCapture = Boolean.parseBoolean( 702 parser.getAttributeValue(null, ATTR_VALUE)); 703 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 704 requireAutoTime= Boolean.parseBoolean( 705 parser.getAttributeValue(null, ATTR_VALUE)); 706 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 707 disabledKeyguardFeatures = Integer.parseInt( 708 parser.getAttributeValue(null, ATTR_VALUE)); 709 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 710 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 711 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 712 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 713 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 714 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 715 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 716 permittedAccessiblityServices = readPackageList(parser, tag); 717 } else if (TAG_PERMITTED_IMES.equals(tag)) { 718 permittedInputMethods = readPackageList(parser, tag); 719 } else { 720 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 721 } 722 XmlUtils.skipCurrentTag(parser); 723 } 724 } 725 726 private List<String> readPackageList(XmlPullParser parser, 727 String tag) throws XmlPullParserException, IOException { 728 List<String> result = new ArrayList<String>(); 729 int outerDepth = parser.getDepth(); 730 int outerType; 731 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 732 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 733 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 734 continue; 735 } 736 String outerTag = parser.getName(); 737 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 738 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 739 if (packageName != null) { 740 result.add(packageName); 741 } else { 742 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 743 } 744 } else { 745 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 746 } 747 } 748 return result; 749 } 750 751 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 752 throws XmlPullParserException, IOException { 753 int outerDepthDAM = parser.getDepth(); 754 int typeDAM; 755 Set<String> result = new HashSet<String>(); 756 while ((typeDAM=parser.next()) != END_DOCUMENT 757 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 758 if (typeDAM == END_TAG || typeDAM == TEXT) { 759 continue; 760 } 761 String tagDAM = parser.getName(); 762 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 763 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 764 } else { 765 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 766 } 767 } 768 return result; 769 } 770 771 private HashMap<String, TrustAgentInfo> getAllTrustAgentInfos( 772 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 773 int outerDepthDAM = parser.getDepth(); 774 int typeDAM; 775 HashMap<String, TrustAgentInfo> result = new HashMap<String, TrustAgentInfo>(); 776 while ((typeDAM=parser.next()) != END_DOCUMENT 777 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 778 if (typeDAM == END_TAG || typeDAM == TEXT) { 779 continue; 780 } 781 String tagDAM = parser.getName(); 782 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 783 final String component = parser.getAttributeValue(null, ATTR_VALUE); 784 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 785 result.put(component, trustAgentInfo); 786 } else { 787 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 788 } 789 } 790 return result; 791 } 792 793 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 794 throws XmlPullParserException, IOException { 795 int outerDepthDAM = parser.getDepth(); 796 int typeDAM; 797 TrustAgentInfo result = new TrustAgentInfo(null); 798 while ((typeDAM=parser.next()) != END_DOCUMENT 799 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 800 if (typeDAM == END_TAG || typeDAM == TEXT) { 801 continue; 802 } 803 String tagDAM = parser.getName(); 804 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 805 PersistableBundle bundle = new PersistableBundle(); 806 bundle.restoreFromXml(parser); 807 result.options = bundle; 808 } else { 809 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 810 } 811 } 812 return result; 813 } 814 815 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 816 throws XmlPullParserException, IOException { 817 int outerDepthDAM = parser.getDepth(); 818 int typeDAM; 819 ArrayList<String> result = null; 820 while ((typeDAM=parser.next()) != END_DOCUMENT 821 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 822 if (typeDAM == END_TAG || typeDAM == TEXT) { 823 continue; 824 } 825 String tagDAM = parser.getName(); 826 if (TAG_PROVIDER.equals(tagDAM)) { 827 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 828 if (result == null) { 829 result = new ArrayList<>(); 830 } 831 result.add(provider); 832 } else { 833 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 834 } 835 } 836 return result; 837 } 838 839 void dump(String prefix, PrintWriter pw) { 840 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 841 pw.print(prefix); pw.println("policies:"); 842 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 843 if (pols != null) { 844 for (int i=0; i<pols.size(); i++) { 845 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 846 } 847 } 848 pw.print(prefix); pw.print("passwordQuality=0x"); 849 pw.println(Integer.toHexString(passwordQuality)); 850 pw.print(prefix); pw.print("minimumPasswordLength="); 851 pw.println(minimumPasswordLength); 852 pw.print(prefix); pw.print("passwordHistoryLength="); 853 pw.println(passwordHistoryLength); 854 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 855 pw.println(minimumPasswordUpperCase); 856 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 857 pw.println(minimumPasswordLowerCase); 858 pw.print(prefix); pw.print("minimumPasswordLetters="); 859 pw.println(minimumPasswordLetters); 860 pw.print(prefix); pw.print("minimumPasswordNumeric="); 861 pw.println(minimumPasswordNumeric); 862 pw.print(prefix); pw.print("minimumPasswordSymbols="); 863 pw.println(minimumPasswordSymbols); 864 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 865 pw.println(minimumPasswordNonLetter); 866 pw.print(prefix); pw.print("maximumTimeToUnlock="); 867 pw.println(maximumTimeToUnlock); 868 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 869 pw.println(maximumFailedPasswordsForWipe); 870 pw.print(prefix); pw.print("specifiesGlobalProxy="); 871 pw.println(specifiesGlobalProxy); 872 pw.print(prefix); pw.print("passwordExpirationTimeout="); 873 pw.println(passwordExpirationTimeout); 874 pw.print(prefix); pw.print("passwordExpirationDate="); 875 pw.println(passwordExpirationDate); 876 if (globalProxySpec != null) { 877 pw.print(prefix); pw.print("globalProxySpec="); 878 pw.println(globalProxySpec); 879 } 880 if (globalProxyExclusionList != null) { 881 pw.print(prefix); pw.print("globalProxyEclusionList="); 882 pw.println(globalProxyExclusionList); 883 } 884 pw.print(prefix); pw.print("encryptionRequested="); 885 pw.println(encryptionRequested); 886 pw.print(prefix); pw.print("disableCamera="); 887 pw.println(disableCamera); 888 pw.print(prefix); pw.print("disableCallerId="); 889 pw.println(disableCallerId); 890 pw.print(prefix); pw.print("disableScreenCapture="); 891 pw.println(disableScreenCapture); 892 pw.print(prefix); pw.print("requireAutoTime="); 893 pw.println(requireAutoTime); 894 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 895 pw.println(disabledKeyguardFeatures); 896 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 897 pw.println(crossProfileWidgetProviders); 898 if (!(permittedAccessiblityServices == null)) { 899 pw.print(prefix); pw.print("permittedAccessibilityServices="); 900 pw.println(permittedAccessiblityServices.toString()); 901 } 902 if (!(permittedInputMethods == null)) { 903 pw.print(prefix); pw.print("permittedInputMethods="); 904 pw.println(permittedInputMethods.toString()); 905 } 906 } 907 } 908 909 private void handlePackagesChanged(String packageName, int userHandle) { 910 boolean removed = false; 911 if (DBG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 912 DevicePolicyData policy = getUserData(userHandle); 913 IPackageManager pm = AppGlobals.getPackageManager(); 914 synchronized (this) { 915 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 916 ActiveAdmin aa = policy.mAdminList.get(i); 917 try { 918 // If we're checking all packages or if the specific one we're checking matches, 919 // then check if the package and receiver still exist. 920 final String adminPackage = aa.info.getPackageName(); 921 if (packageName == null || packageName.equals(adminPackage)) { 922 if (pm.getPackageInfo(adminPackage, 0, userHandle) == null 923 || pm.getReceiverInfo(aa.info.getComponent(), 0, userHandle) 924 == null) { 925 removed = true; 926 policy.mAdminList.remove(i); 927 policy.mAdminMap.remove(aa.info.getComponent()); 928 } 929 } 930 } catch (RemoteException re) { 931 // Shouldn't happen 932 } 933 } 934 if (removed) { 935 validatePasswordOwnerLocked(policy); 936 syncDeviceCapabilitiesLocked(policy); 937 saveSettingsLocked(policy.mUserHandle); 938 } 939 } 940 } 941 942 /** 943 * Instantiates the service. 944 */ 945 public DevicePolicyManagerService(Context context) { 946 mContext = context; 947 mUserManager = UserManager.get(mContext); 948 mHasFeature = context.getPackageManager().hasSystemFeature( 949 PackageManager.FEATURE_DEVICE_ADMIN); 950 mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE); 951 mPowerManagerInternal = LocalServices.getService(PowerManagerInternal.class); 952 mWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "DPM"); 953 mLocalService = new LocalService(); 954 if (!mHasFeature) { 955 // Skip the rest of the initialization 956 return; 957 } 958 IntentFilter filter = new IntentFilter(); 959 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 960 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 961 filter.addAction(Intent.ACTION_USER_REMOVED); 962 filter.addAction(Intent.ACTION_USER_STARTED); 963 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 964 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 965 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 966 filter = new IntentFilter(); 967 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 968 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 969 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 970 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 971 filter.addDataScheme("package"); 972 context.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 973 974 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 975 } 976 977 /** 978 * Creates and loads the policy data from xml. 979 * @param userHandle the user for whom to load the policy data 980 * @return 981 */ 982 DevicePolicyData getUserData(int userHandle) { 983 synchronized (this) { 984 DevicePolicyData policy = mUserData.get(userHandle); 985 if (policy == null) { 986 policy = new DevicePolicyData(userHandle); 987 mUserData.append(userHandle, policy); 988 loadSettingsLocked(policy, userHandle); 989 } 990 return policy; 991 } 992 } 993 994 /** 995 * Creates and loads the policy data from xml for data that is shared between 996 * various profiles of a user. In contrast to {@link #getUserData(int)} 997 * it allows access to data of users other than the calling user. 998 * 999 * This function should only be used for shared data, e.g. everything regarding 1000 * passwords and should be removed once multiple screen locks are present. 1001 * @param userHandle the user for whom to load the policy data 1002 * @return 1003 */ 1004 DevicePolicyData getUserDataUnchecked(int userHandle) { 1005 long ident = Binder.clearCallingIdentity(); 1006 try { 1007 return getUserData(userHandle); 1008 } finally { 1009 Binder.restoreCallingIdentity(ident); 1010 } 1011 } 1012 1013 void removeUserData(int userHandle) { 1014 synchronized (this) { 1015 if (userHandle == UserHandle.USER_OWNER) { 1016 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1017 return; 1018 } 1019 if (mDeviceOwner != null) { 1020 mDeviceOwner.removeProfileOwner(userHandle); 1021 mDeviceOwner.writeOwnerFile(); 1022 } 1023 1024 DevicePolicyData policy = mUserData.get(userHandle); 1025 if (policy != null) { 1026 mUserData.remove(userHandle); 1027 } 1028 File policyFile = new File(Environment.getUserSystemDirectory(userHandle), 1029 DEVICE_POLICIES_XML); 1030 policyFile.delete(); 1031 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1032 } 1033 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1034 } 1035 1036 void loadDeviceOwner() { 1037 synchronized (this) { 1038 mDeviceOwner = DeviceOwner.load(); 1039 } 1040 } 1041 1042 /** 1043 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1044 * reminders. Clears alarm if no expirations are configured. 1045 */ 1046 protected void setExpirationAlarmCheckLocked(Context context, DevicePolicyData policy) { 1047 final long expiration = getPasswordExpirationLocked(null, policy.mUserHandle); 1048 final long now = System.currentTimeMillis(); 1049 final long timeToExpire = expiration - now; 1050 final long alarmTime; 1051 if (expiration == 0) { 1052 // No expirations are currently configured: Cancel alarm. 1053 alarmTime = 0; 1054 } else if (timeToExpire <= 0) { 1055 // The password has already expired: Repeat every 24 hours. 1056 alarmTime = now + MS_PER_DAY; 1057 } else { 1058 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1059 // the expiration time. 1060 long alarmInterval = timeToExpire % MS_PER_DAY; 1061 if (alarmInterval == 0) { 1062 alarmInterval = MS_PER_DAY; 1063 } 1064 alarmTime = now + alarmInterval; 1065 } 1066 1067 long token = Binder.clearCallingIdentity(); 1068 try { 1069 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1070 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1071 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1072 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1073 new UserHandle(policy.mUserHandle)); 1074 am.cancel(pi); 1075 if (alarmTime != 0) { 1076 am.set(AlarmManager.RTC, alarmTime, pi); 1077 } 1078 } finally { 1079 Binder.restoreCallingIdentity(token); 1080 } 1081 } 1082 1083 private IWindowManager getWindowManager() { 1084 if (mIWindowManager == null) { 1085 IBinder b = ServiceManager.getService(Context.WINDOW_SERVICE); 1086 mIWindowManager = IWindowManager.Stub.asInterface(b); 1087 } 1088 return mIWindowManager; 1089 } 1090 1091 private NotificationManager getNotificationManager() { 1092 if (mNotificationManager == null) { 1093 mNotificationManager = 1094 (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE); 1095 } 1096 return mNotificationManager; 1097 } 1098 1099 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1100 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1101 if (admin != null 1102 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1103 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1104 return admin; 1105 } 1106 return null; 1107 } 1108 1109 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1110 throws SecurityException { 1111 final int callingUid = Binder.getCallingUid(); 1112 final int userHandle = UserHandle.getUserId(callingUid); 1113 final DevicePolicyData policy = getUserData(userHandle); 1114 1115 List<ActiveAdmin> candidates = new ArrayList<ActiveAdmin>(); 1116 1117 // Build a list of admins for this uid matching the given ComponentName 1118 if (who != null) { 1119 ActiveAdmin admin = policy.mAdminMap.get(who); 1120 if (admin == null) { 1121 throw new SecurityException("No active admin " + who); 1122 } 1123 if (admin.getUid() != callingUid) { 1124 throw new SecurityException("Admin " + who + " is not owned by uid " 1125 + Binder.getCallingUid()); 1126 } 1127 candidates.add(admin); 1128 } else { 1129 for (ActiveAdmin admin : policy.mAdminList) { 1130 if (admin.getUid() == callingUid) { 1131 candidates.add(admin); 1132 } 1133 } 1134 } 1135 1136 // Try to find an admin which can use reqPolicy 1137 for (ActiveAdmin admin : candidates) { 1138 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 1139 boolean ownsProfile = (getProfileOwner(userHandle) != null 1140 && getProfileOwner(userHandle).getPackageName() 1141 .equals(admin.info.getPackageName())); 1142 1143 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1144 if (ownsDevice) { 1145 return admin; 1146 } 1147 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1148 if (ownsDevice || ownsProfile) { 1149 return admin; 1150 } 1151 } else { 1152 if (admin.info.usesPolicy(reqPolicy)) { 1153 return admin; 1154 } 1155 } 1156 } 1157 1158 if (who != null) { 1159 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1160 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1161 + " does not own the device"); 1162 } 1163 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1164 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1165 + " does not own the profile"); 1166 } 1167 throw new SecurityException("Admin " + candidates.get(0).info.getComponent() 1168 + " did not specify uses-policy for: " 1169 + candidates.get(0).info.getTagForPolicy(reqPolicy)); 1170 } else { 1171 throw new SecurityException("No active admin owned by uid " 1172 + Binder.getCallingUid() + " for policy #" + reqPolicy); 1173 } 1174 } 1175 1176 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1177 sendAdminCommandLocked(admin, action, null); 1178 } 1179 1180 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1181 sendAdminCommandLocked(admin, action, null, result); 1182 } 1183 1184 /** 1185 * Send an update to one specific admin, get notified when that admin returns a result. 1186 */ 1187 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1188 BroadcastReceiver result) { 1189 Intent intent = new Intent(action); 1190 intent.setComponent(admin.info.getComponent()); 1191 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1192 intent.putExtra("expiration", admin.passwordExpirationDate); 1193 } 1194 if (adminExtras != null) { 1195 intent.putExtras(adminExtras); 1196 } 1197 if (result != null) { 1198 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1199 null, result, mHandler, Activity.RESULT_OK, null, null); 1200 } else { 1201 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1202 } 1203 } 1204 1205 /** 1206 * Send an update to all admins of a user that enforce a specified policy. 1207 */ 1208 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1209 final DevicePolicyData policy = getUserData(userHandle); 1210 final int count = policy.mAdminList.size(); 1211 if (count > 0) { 1212 for (int i = 0; i < count; i++) { 1213 final ActiveAdmin admin = policy.mAdminList.get(i); 1214 if (admin.info.usesPolicy(reqPolicy)) { 1215 sendAdminCommandLocked(admin, action); 1216 } 1217 } 1218 } 1219 } 1220 1221 /** 1222 * Send an update intent to all admins of a user and its profiles. Only send to admins that 1223 * enforce a specified policy. 1224 */ 1225 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 1226 int userHandle) { 1227 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1228 for (UserInfo ui : profiles) { 1229 int id = ui.id; 1230 sendAdminCommandLocked(action, reqPolicy, id); 1231 } 1232 } 1233 1234 void removeActiveAdminLocked(final ComponentName adminReceiver, int userHandle) { 1235 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1236 if (admin != null) { 1237 synchronized (this) { 1238 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 1239 } 1240 sendAdminCommandLocked(admin, 1241 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 1242 new BroadcastReceiver() { 1243 @Override 1244 public void onReceive(Context context, Intent intent) { 1245 synchronized (DevicePolicyManagerService.this) { 1246 int userHandle = admin.getUserHandle().getIdentifier(); 1247 DevicePolicyData policy = getUserData(userHandle); 1248 boolean doProxyCleanup = admin.info.usesPolicy( 1249 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 1250 policy.mAdminList.remove(admin); 1251 policy.mAdminMap.remove(adminReceiver); 1252 validatePasswordOwnerLocked(policy); 1253 syncDeviceCapabilitiesLocked(policy); 1254 if (doProxyCleanup) { 1255 resetGlobalProxyLocked(getUserData(userHandle)); 1256 } 1257 saveSettingsLocked(userHandle); 1258 updateMaximumTimeToLockLocked(policy); 1259 policy.mRemovingAdmins.remove(adminReceiver); 1260 } 1261 } 1262 }); 1263 } 1264 } 1265 1266 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle) { 1267 if (!mHasFeature) { 1268 return null; 1269 } 1270 enforceCrossUserPermission(userHandle); 1271 Intent resolveIntent = new Intent(); 1272 resolveIntent.setComponent(adminName); 1273 List<ResolveInfo> infos = mContext.getPackageManager().queryBroadcastReceivers( 1274 resolveIntent, 1275 PackageManager.GET_META_DATA | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 1276 userHandle); 1277 if (infos == null || infos.size() <= 0) { 1278 throw new IllegalArgumentException("Unknown admin: " + adminName); 1279 } 1280 1281 try { 1282 return new DeviceAdminInfo(mContext, infos.get(0)); 1283 } catch (XmlPullParserException e) { 1284 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1285 e); 1286 return null; 1287 } catch (IOException e) { 1288 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 1289 e); 1290 return null; 1291 } 1292 } 1293 1294 private static JournaledFile makeJournaledFile(int userHandle) { 1295 final String base = userHandle == 0 1296 ? "/data/system/" + DEVICE_POLICIES_XML 1297 : new File(Environment.getUserSystemDirectory(userHandle), DEVICE_POLICIES_XML) 1298 .getAbsolutePath(); 1299 return new JournaledFile(new File(base), new File(base + ".tmp")); 1300 } 1301 1302 private void saveSettingsLocked(int userHandle) { 1303 DevicePolicyData policy = getUserData(userHandle); 1304 JournaledFile journal = makeJournaledFile(userHandle); 1305 FileOutputStream stream = null; 1306 try { 1307 stream = new FileOutputStream(journal.chooseForWrite(), false); 1308 XmlSerializer out = new FastXmlSerializer(); 1309 out.setOutput(stream, "utf-8"); 1310 out.startDocument(null, true); 1311 1312 out.startTag(null, "policies"); 1313 if (policy.mRestrictionsProvider != null) { 1314 out.attribute(null, ATTR_PERMISSION_PROVIDER, 1315 policy.mRestrictionsProvider.flattenToString()); 1316 } 1317 if (policy.mUserSetupComplete) { 1318 out.attribute(null, ATTR_SETUP_COMPLETE, 1319 Boolean.toString(true)); 1320 } 1321 1322 final int N = policy.mAdminList.size(); 1323 for (int i=0; i<N; i++) { 1324 ActiveAdmin ap = policy.mAdminList.get(i); 1325 if (ap != null) { 1326 out.startTag(null, "admin"); 1327 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 1328 ap.writeToXml(out); 1329 out.endTag(null, "admin"); 1330 } 1331 } 1332 1333 if (policy.mPasswordOwner >= 0) { 1334 out.startTag(null, "password-owner"); 1335 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 1336 out.endTag(null, "password-owner"); 1337 } 1338 1339 if (policy.mFailedPasswordAttempts != 0) { 1340 out.startTag(null, "failed-password-attempts"); 1341 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 1342 out.endTag(null, "failed-password-attempts"); 1343 } 1344 1345 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 1346 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 1347 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 1348 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 1349 out.startTag(null, "active-password"); 1350 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 1351 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 1352 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 1353 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 1354 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 1355 out.attribute(null, "numeric", Integer 1356 .toString(policy.mActivePasswordNumeric)); 1357 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 1358 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 1359 out.endTag(null, "active-password"); 1360 } 1361 1362 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 1363 String component = policy.mLockTaskPackages.get(i); 1364 out.startTag(null, LOCK_TASK_COMPONENTS_XML); 1365 out.attribute(null, "name", component); 1366 out.endTag(null, LOCK_TASK_COMPONENTS_XML); 1367 } 1368 1369 out.endTag(null, "policies"); 1370 1371 out.endDocument(); 1372 stream.flush(); 1373 FileUtils.sync(stream); 1374 stream.close(); 1375 journal.commit(); 1376 sendChangedNotification(userHandle); 1377 } catch (IOException e) { 1378 try { 1379 if (stream != null) { 1380 stream.close(); 1381 } 1382 } catch (IOException ex) { 1383 // Ignore 1384 } 1385 journal.rollback(); 1386 } 1387 } 1388 1389 private void sendChangedNotification(int userHandle) { 1390 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 1391 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1392 long ident = Binder.clearCallingIdentity(); 1393 try { 1394 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 1395 } finally { 1396 Binder.restoreCallingIdentity(ident); 1397 } 1398 } 1399 1400 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 1401 JournaledFile journal = makeJournaledFile(userHandle); 1402 FileInputStream stream = null; 1403 File file = journal.chooseForRead(); 1404 try { 1405 stream = new FileInputStream(file); 1406 XmlPullParser parser = Xml.newPullParser(); 1407 parser.setInput(stream, null); 1408 1409 int type; 1410 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1411 && type != XmlPullParser.START_TAG) { 1412 } 1413 String tag = parser.getName(); 1414 if (!"policies".equals(tag)) { 1415 throw new XmlPullParserException( 1416 "Settings do not start with policies tag: found " + tag); 1417 } 1418 1419 // Extract the permission provider component name if available 1420 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 1421 if (permissionProvider != null) { 1422 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 1423 } 1424 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 1425 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 1426 policy.mUserSetupComplete = true; 1427 } 1428 1429 type = parser.next(); 1430 int outerDepth = parser.getDepth(); 1431 policy.mLockTaskPackages.clear(); 1432 policy.mAdminList.clear(); 1433 policy.mAdminMap.clear(); 1434 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 1435 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1436 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1437 continue; 1438 } 1439 tag = parser.getName(); 1440 if ("admin".equals(tag)) { 1441 String name = parser.getAttributeValue(null, "name"); 1442 try { 1443 DeviceAdminInfo dai = findAdmin( 1444 ComponentName.unflattenFromString(name), userHandle); 1445 if (DBG && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 1446 != userHandle)) { 1447 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 1448 + dai.getActivityInfo().applicationInfo.uid + " for user " 1449 + userHandle); 1450 } 1451 if (dai != null) { 1452 ActiveAdmin ap = new ActiveAdmin(dai); 1453 ap.readFromXml(parser); 1454 policy.mAdminMap.put(ap.info.getComponent(), ap); 1455 } 1456 } catch (RuntimeException e) { 1457 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 1458 } 1459 } else if ("failed-password-attempts".equals(tag)) { 1460 policy.mFailedPasswordAttempts = Integer.parseInt( 1461 parser.getAttributeValue(null, "value")); 1462 XmlUtils.skipCurrentTag(parser); 1463 } else if ("password-owner".equals(tag)) { 1464 policy.mPasswordOwner = Integer.parseInt( 1465 parser.getAttributeValue(null, "value")); 1466 XmlUtils.skipCurrentTag(parser); 1467 } else if ("active-password".equals(tag)) { 1468 policy.mActivePasswordQuality = Integer.parseInt( 1469 parser.getAttributeValue(null, "quality")); 1470 policy.mActivePasswordLength = Integer.parseInt( 1471 parser.getAttributeValue(null, "length")); 1472 policy.mActivePasswordUpperCase = Integer.parseInt( 1473 parser.getAttributeValue(null, "uppercase")); 1474 policy.mActivePasswordLowerCase = Integer.parseInt( 1475 parser.getAttributeValue(null, "lowercase")); 1476 policy.mActivePasswordLetters = Integer.parseInt( 1477 parser.getAttributeValue(null, "letters")); 1478 policy.mActivePasswordNumeric = Integer.parseInt( 1479 parser.getAttributeValue(null, "numeric")); 1480 policy.mActivePasswordSymbols = Integer.parseInt( 1481 parser.getAttributeValue(null, "symbols")); 1482 policy.mActivePasswordNonLetter = Integer.parseInt( 1483 parser.getAttributeValue(null, "nonletter")); 1484 XmlUtils.skipCurrentTag(parser); 1485 } else if (LOCK_TASK_COMPONENTS_XML.equals(tag)) { 1486 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 1487 XmlUtils.skipCurrentTag(parser); 1488 } else { 1489 Slog.w(LOG_TAG, "Unknown tag: " + tag); 1490 XmlUtils.skipCurrentTag(parser); 1491 } 1492 } 1493 } catch (NullPointerException e) { 1494 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1495 } catch (NumberFormatException e) { 1496 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1497 } catch (XmlPullParserException e) { 1498 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1499 } catch (FileNotFoundException e) { 1500 // Don't be noisy, this is normal if we haven't defined any policies. 1501 } catch (IOException e) { 1502 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1503 } catch (IndexOutOfBoundsException e) { 1504 Slog.w(LOG_TAG, "failed parsing " + file + " " + e); 1505 } 1506 try { 1507 if (stream != null) { 1508 stream.close(); 1509 } 1510 } catch (IOException e) { 1511 // Ignore 1512 } 1513 1514 // Generate a list of admins from the admin map 1515 policy.mAdminList.addAll(policy.mAdminMap.values()); 1516 1517 // Validate that what we stored for the password quality matches 1518 // sufficiently what is currently set. Note that this is only 1519 // a sanity check in case the two get out of sync; this should 1520 // never normally happen. 1521 LockPatternUtils utils = new LockPatternUtils(mContext); 1522 if (utils.getActivePasswordQuality(userHandle) < policy.mActivePasswordQuality) { 1523 Slog.w(LOG_TAG, "Active password quality 0x" 1524 + Integer.toHexString(policy.mActivePasswordQuality) 1525 + " does not match actual quality 0x" 1526 + Integer.toHexString(utils.getActivePasswordQuality(userHandle))); 1527 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1528 policy.mActivePasswordLength = 0; 1529 policy.mActivePasswordUpperCase = 0; 1530 policy.mActivePasswordLowerCase = 0; 1531 policy.mActivePasswordLetters = 0; 1532 policy.mActivePasswordNumeric = 0; 1533 policy.mActivePasswordSymbols = 0; 1534 policy.mActivePasswordNonLetter = 0; 1535 } 1536 1537 validatePasswordOwnerLocked(policy); 1538 syncDeviceCapabilitiesLocked(policy); 1539 updateMaximumTimeToLockLocked(policy); 1540 } 1541 1542 static void validateQualityConstant(int quality) { 1543 switch (quality) { 1544 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 1545 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 1546 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 1547 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 1548 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 1549 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 1550 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 1551 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 1552 return; 1553 } 1554 throw new IllegalArgumentException("Invalid quality constant: 0x" 1555 + Integer.toHexString(quality)); 1556 } 1557 1558 void validatePasswordOwnerLocked(DevicePolicyData policy) { 1559 if (policy.mPasswordOwner >= 0) { 1560 boolean haveOwner = false; 1561 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1562 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 1563 haveOwner = true; 1564 break; 1565 } 1566 } 1567 if (!haveOwner) { 1568 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 1569 + " no longer active; disabling"); 1570 policy.mPasswordOwner = -1; 1571 } 1572 } 1573 } 1574 1575 /** 1576 * Pushes down policy information to the system for any policies related to general device 1577 * capabilities that need to be enforced by lower level services (e.g. Camera services). 1578 */ 1579 void syncDeviceCapabilitiesLocked(DevicePolicyData policy) { 1580 // Ensure the status of the camera is synced down to the system. Interested native services 1581 // should monitor this value and act accordingly. 1582 String cameraPropertyForUser = SYSTEM_PROP_DISABLE_CAMERA_PREFIX + policy.mUserHandle; 1583 boolean systemState = SystemProperties.getBoolean(cameraPropertyForUser, false); 1584 boolean cameraDisabled = getCameraDisabled(null, policy.mUserHandle); 1585 if (cameraDisabled != systemState) { 1586 long token = Binder.clearCallingIdentity(); 1587 try { 1588 String value = cameraDisabled ? "1" : "0"; 1589 if (DBG) Slog.v(LOG_TAG, "Change in camera state [" 1590 + cameraPropertyForUser + "] = " + value); 1591 SystemProperties.set(cameraPropertyForUser, value); 1592 } finally { 1593 Binder.restoreCallingIdentity(token); 1594 } 1595 } 1596 } 1597 1598 public void systemReady() { 1599 if (!mHasFeature) { 1600 return; 1601 } 1602 getUserData(UserHandle.USER_OWNER); 1603 loadDeviceOwner(); 1604 cleanUpOldUsers(); 1605 // Register an observer for watching for user setup complete. 1606 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 1607 // Initialize the user setup state, to handle the upgrade case. 1608 updateUserSetupComplete(); 1609 1610 // Update the screen capture disabled cache in the window manager 1611 List<UserInfo> users = mUserManager.getUsers(true); 1612 final int N = users.size(); 1613 for (int i = 0; i < N; i++) { 1614 int userHandle = users.get(i).id; 1615 updateScreenCaptureDisabledInWindowManager(userHandle, 1616 getScreenCaptureDisabled(null, userHandle)); 1617 } 1618 1619 } 1620 1621 private void cleanUpOldUsers() { 1622 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 1623 // before reboot 1624 Set<Integer> usersWithProfileOwners; 1625 Set<Integer> usersWithData; 1626 synchronized(this) { 1627 usersWithProfileOwners = mDeviceOwner != null 1628 ? mDeviceOwner.getProfileOwnerKeys() : new HashSet<Integer>(); 1629 usersWithData = new HashSet<Integer>(); 1630 for (int i = 0; i < mUserData.size(); i++) { 1631 usersWithData.add(mUserData.keyAt(i)); 1632 } 1633 } 1634 List<UserInfo> allUsers = mUserManager.getUsers(); 1635 1636 Set<Integer> deletedUsers = new HashSet<Integer>(); 1637 deletedUsers.addAll(usersWithProfileOwners); 1638 deletedUsers.addAll(usersWithData); 1639 for (UserInfo userInfo : allUsers) { 1640 deletedUsers.remove(userInfo.id); 1641 } 1642 for (Integer userId : deletedUsers) { 1643 removeUserData(userId); 1644 } 1645 } 1646 1647 private void handlePasswordExpirationNotification(int userHandle) { 1648 synchronized (this) { 1649 final long now = System.currentTimeMillis(); 1650 1651 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1652 for (UserInfo ui : profiles) { 1653 int profileUserHandle = ui.id; 1654 final DevicePolicyData policy = getUserData(profileUserHandle); 1655 final int count = policy.mAdminList.size(); 1656 if (count > 0) { 1657 for (int i = 0; i < count; i++) { 1658 final ActiveAdmin admin = policy.mAdminList.get(i); 1659 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 1660 && admin.passwordExpirationTimeout > 0L 1661 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 1662 && admin.passwordExpirationDate > 0L) { 1663 sendAdminCommandLocked(admin, 1664 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 1665 } 1666 } 1667 } 1668 } 1669 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 1670 } 1671 } 1672 1673 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 1674 @Override 1675 protected Void doInBackground(Intent... params) { 1676 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 1677 1678 if (userHandle == UserHandle.USER_ALL) { 1679 for (UserInfo userInfo : mUserManager.getUsers()) { 1680 manageNotification(userInfo.getUserHandle()); 1681 } 1682 } else { 1683 manageNotification(new UserHandle(userHandle)); 1684 } 1685 return null; 1686 } 1687 1688 private void manageNotification(UserHandle userHandle) { 1689 if (!mUserManager.isUserRunning(userHandle)) { 1690 return; 1691 } 1692 1693 // Call out to KeyChain to check for user-added CAs 1694 boolean hasCert = false; 1695 try { 1696 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 1697 try { 1698 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 1699 hasCert = true; 1700 } 1701 } catch (RemoteException e) { 1702 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 1703 } finally { 1704 kcs.close(); 1705 } 1706 } catch (InterruptedException e) { 1707 Thread.currentThread().interrupt(); 1708 } catch (RuntimeException e) { 1709 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 1710 } 1711 if (!hasCert) { 1712 getNotificationManager().cancelAsUser( 1713 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 1714 return; 1715 } 1716 1717 // Build and show a warning notification 1718 int smallIconId; 1719 String contentText; 1720 final String ownerName = getDeviceOwnerName(); 1721 if (isManagedProfile(userHandle.getIdentifier())) { 1722 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 1723 smallIconId = R.drawable.stat_sys_certificate_info; 1724 } else if (ownerName != null) { 1725 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 1726 smallIconId = R.drawable.stat_sys_certificate_info; 1727 } else { 1728 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 1729 smallIconId = android.R.drawable.stat_sys_warning; 1730 } 1731 1732 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 1733 dialogIntent.setFlags( 1734 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 1735 dialogIntent.setPackage("com.android.settings"); 1736 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 1737 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 1738 1739 final Context userContext; 1740 try { 1741 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 1742 } catch (PackageManager.NameNotFoundException e) { 1743 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 1744 return; 1745 } 1746 final Notification noti = new Notification.Builder(userContext) 1747 .setSmallIcon(smallIconId) 1748 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 1749 .setContentText(contentText) 1750 .setContentIntent(notifyIntent) 1751 .setPriority(Notification.PRIORITY_HIGH) 1752 .setShowWhen(false) 1753 .setColor(mContext.getResources().getColor( 1754 com.android.internal.R.color.system_notification_accent_color)) 1755 .build(); 1756 1757 getNotificationManager().notifyAsUser( 1758 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 1759 } 1760 } 1761 1762 /** 1763 * @param adminReceiver The admin to add 1764 * @param refreshing true = update an active admin, no error 1765 */ 1766 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 1767 if (!mHasFeature) { 1768 return; 1769 } 1770 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 1771 } 1772 1773 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 1774 Bundle onEnableData) { 1775 mContext.enforceCallingOrSelfPermission( 1776 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1777 enforceCrossUserPermission(userHandle); 1778 1779 DevicePolicyData policy = getUserData(userHandle); 1780 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle); 1781 if (info == null) { 1782 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 1783 } 1784 synchronized (this) { 1785 long ident = Binder.clearCallingIdentity(); 1786 try { 1787 if (!refreshing 1788 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 1789 throw new IllegalArgumentException("Admin is already added"); 1790 } 1791 ActiveAdmin newAdmin = new ActiveAdmin(info); 1792 policy.mAdminMap.put(adminReceiver, newAdmin); 1793 int replaceIndex = -1; 1794 final int N = policy.mAdminList.size(); 1795 for (int i=0; i < N; i++) { 1796 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 1797 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 1798 replaceIndex = i; 1799 break; 1800 } 1801 } 1802 if (replaceIndex == -1) { 1803 policy.mAdminList.add(newAdmin); 1804 enableIfNecessary(info.getPackageName(), userHandle); 1805 } else { 1806 policy.mAdminList.set(replaceIndex, newAdmin); 1807 } 1808 saveSettingsLocked(userHandle); 1809 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 1810 onEnableData, null); 1811 } finally { 1812 Binder.restoreCallingIdentity(ident); 1813 } 1814 } 1815 } 1816 1817 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 1818 if (!mHasFeature) { 1819 return false; 1820 } 1821 enforceCrossUserPermission(userHandle); 1822 synchronized (this) { 1823 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 1824 } 1825 } 1826 1827 @Override 1828 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 1829 if (!mHasFeature) { 1830 return false; 1831 } 1832 enforceCrossUserPermission(userHandle); 1833 synchronized (this) { 1834 DevicePolicyData policyData = getUserData(userHandle); 1835 return policyData.mRemovingAdmins.contains(adminReceiver); 1836 } 1837 } 1838 1839 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 1840 if (!mHasFeature) { 1841 return false; 1842 } 1843 enforceCrossUserPermission(userHandle); 1844 synchronized (this) { 1845 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1846 if (administrator == null) { 1847 throw new SecurityException("No active admin " + adminReceiver); 1848 } 1849 return administrator.info.usesPolicy(policyId); 1850 } 1851 } 1852 1853 @SuppressWarnings("unchecked") 1854 public List<ComponentName> getActiveAdmins(int userHandle) { 1855 if (!mHasFeature) { 1856 return Collections.EMPTY_LIST; 1857 } 1858 1859 enforceCrossUserPermission(userHandle); 1860 synchronized (this) { 1861 DevicePolicyData policy = getUserData(userHandle); 1862 final int N = policy.mAdminList.size(); 1863 if (N <= 0) { 1864 return null; 1865 } 1866 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 1867 for (int i=0; i<N; i++) { 1868 res.add(policy.mAdminList.get(i).info.getComponent()); 1869 } 1870 return res; 1871 } 1872 } 1873 1874 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 1875 if (!mHasFeature) { 1876 return false; 1877 } 1878 enforceCrossUserPermission(userHandle); 1879 synchronized (this) { 1880 DevicePolicyData policy = getUserData(userHandle); 1881 final int N = policy.mAdminList.size(); 1882 for (int i=0; i<N; i++) { 1883 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 1884 return true; 1885 } 1886 } 1887 return false; 1888 } 1889 } 1890 1891 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 1892 if (!mHasFeature) { 1893 return; 1894 } 1895 enforceCrossUserPermission(userHandle); 1896 synchronized (this) { 1897 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 1898 if (admin == null) { 1899 return; 1900 } 1901 if (admin.getUid() != Binder.getCallingUid()) { 1902 // If trying to remove device owner, refuse when the caller is not the owner. 1903 if (isDeviceOwner(adminReceiver.getPackageName())) { 1904 return; 1905 } 1906 mContext.enforceCallingOrSelfPermission( 1907 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 1908 } 1909 long ident = Binder.clearCallingIdentity(); 1910 try { 1911 removeActiveAdminLocked(adminReceiver, userHandle); 1912 } finally { 1913 Binder.restoreCallingIdentity(ident); 1914 } 1915 } 1916 } 1917 1918 public void setPasswordQuality(ComponentName who, int quality) { 1919 if (!mHasFeature) { 1920 return; 1921 } 1922 Preconditions.checkNotNull(who, "ComponentName is null"); 1923 final int userHandle = UserHandle.getCallingUserId(); 1924 validateQualityConstant(quality); 1925 1926 synchronized (this) { 1927 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1928 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1929 if (ap.passwordQuality != quality) { 1930 ap.passwordQuality = quality; 1931 saveSettingsLocked(userHandle); 1932 } 1933 } 1934 } 1935 1936 public int getPasswordQuality(ComponentName who, int userHandle) { 1937 if (!mHasFeature) { 1938 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1939 } 1940 enforceCrossUserPermission(userHandle); 1941 synchronized (this) { 1942 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 1943 1944 if (who != null) { 1945 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1946 return admin != null ? admin.passwordQuality : mode; 1947 } 1948 1949 // Return strictest policy for this user and profiles that are visible from this user. 1950 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1951 for (UserInfo userInfo : profiles) { 1952 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 1953 final int N = policy.mAdminList.size(); 1954 for (int i=0; i<N; i++) { 1955 ActiveAdmin admin = policy.mAdminList.get(i); 1956 if (mode < admin.passwordQuality) { 1957 mode = admin.passwordQuality; 1958 } 1959 } 1960 } 1961 return mode; 1962 } 1963 } 1964 1965 public void setPasswordMinimumLength(ComponentName who, int length) { 1966 if (!mHasFeature) { 1967 return; 1968 } 1969 Preconditions.checkNotNull(who, "ComponentName is null"); 1970 final int userHandle = UserHandle.getCallingUserId(); 1971 synchronized (this) { 1972 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 1973 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 1974 if (ap.minimumPasswordLength != length) { 1975 ap.minimumPasswordLength = length; 1976 saveSettingsLocked(userHandle); 1977 } 1978 } 1979 } 1980 1981 public int getPasswordMinimumLength(ComponentName who, int userHandle) { 1982 if (!mHasFeature) { 1983 return 0; 1984 } 1985 enforceCrossUserPermission(userHandle); 1986 synchronized (this) { 1987 int length = 0; 1988 1989 if (who != null) { 1990 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1991 return admin != null ? admin.minimumPasswordLength : length; 1992 } 1993 1994 // Return strictest policy for this user and profiles that are visible from this user. 1995 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 1996 for (UserInfo userInfo : profiles) { 1997 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 1998 final int N = policy.mAdminList.size(); 1999 for (int i=0; i<N; i++) { 2000 ActiveAdmin admin = policy.mAdminList.get(i); 2001 if (length < admin.minimumPasswordLength) { 2002 length = admin.minimumPasswordLength; 2003 } 2004 } 2005 } 2006 return length; 2007 } 2008 } 2009 2010 public void setPasswordHistoryLength(ComponentName who, int length) { 2011 if (!mHasFeature) { 2012 return; 2013 } 2014 Preconditions.checkNotNull(who, "ComponentName is null"); 2015 final int userHandle = UserHandle.getCallingUserId(); 2016 synchronized (this) { 2017 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2018 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2019 if (ap.passwordHistoryLength != length) { 2020 ap.passwordHistoryLength = length; 2021 saveSettingsLocked(userHandle); 2022 } 2023 } 2024 } 2025 2026 public int getPasswordHistoryLength(ComponentName who, int userHandle) { 2027 if (!mHasFeature) { 2028 return 0; 2029 } 2030 enforceCrossUserPermission(userHandle); 2031 synchronized (this) { 2032 int length = 0; 2033 2034 if (who != null) { 2035 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2036 return admin != null ? admin.passwordHistoryLength : length; 2037 } 2038 2039 // Return strictest policy for this user and profiles that are visible from this user. 2040 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2041 for (UserInfo userInfo : profiles) { 2042 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2043 final int N = policy.mAdminList.size(); 2044 for (int i = 0; i < N; i++) { 2045 ActiveAdmin admin = policy.mAdminList.get(i); 2046 if (length < admin.passwordHistoryLength) { 2047 length = admin.passwordHistoryLength; 2048 } 2049 } 2050 } 2051 return length; 2052 } 2053 } 2054 2055 public void setPasswordExpirationTimeout(ComponentName who, long timeout) { 2056 if (!mHasFeature) { 2057 return; 2058 } 2059 Preconditions.checkNotNull(who, "ComponentName is null"); 2060 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 2061 final int userHandle = UserHandle.getCallingUserId(); 2062 synchronized (this) { 2063 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2064 DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD); 2065 // Calling this API automatically bumps the expiration date 2066 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 2067 ap.passwordExpirationDate = expiration; 2068 ap.passwordExpirationTimeout = timeout; 2069 if (timeout > 0L) { 2070 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 2071 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 2072 .format(new Date(expiration))); 2073 } 2074 saveSettingsLocked(userHandle); 2075 // in case this is the first one 2076 setExpirationAlarmCheckLocked(mContext, getUserData(userHandle)); 2077 } 2078 } 2079 2080 /** 2081 * Return a single admin's expiration cycle time, or the min of all cycle times. 2082 * Returns 0 if not configured. 2083 */ 2084 public long getPasswordExpirationTimeout(ComponentName who, int userHandle) { 2085 if (!mHasFeature) { 2086 return 0L; 2087 } 2088 enforceCrossUserPermission(userHandle); 2089 synchronized (this) { 2090 long timeout = 0L; 2091 2092 if (who != null) { 2093 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2094 return admin != null ? admin.passwordExpirationTimeout : timeout; 2095 } 2096 2097 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2098 for (UserInfo userInfo : profiles) { 2099 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2100 final int N = policy.mAdminList.size(); 2101 for (int i = 0; i < N; i++) { 2102 ActiveAdmin admin = policy.mAdminList.get(i); 2103 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 2104 && timeout > admin.passwordExpirationTimeout)) { 2105 timeout = admin.passwordExpirationTimeout; 2106 } 2107 } 2108 } 2109 return timeout; 2110 } 2111 } 2112 2113 @Override 2114 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2115 final int userId = UserHandle.getCallingUserId(); 2116 List<String> changedProviders = null; 2117 2118 synchronized (this) { 2119 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2120 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2121 if (activeAdmin.crossProfileWidgetProviders == null) { 2122 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 2123 } 2124 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2125 if (!providers.contains(packageName)) { 2126 providers.add(packageName); 2127 changedProviders = new ArrayList<>(providers); 2128 saveSettingsLocked(userId); 2129 } 2130 } 2131 2132 if (changedProviders != null) { 2133 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2134 return true; 2135 } 2136 2137 return false; 2138 } 2139 2140 @Override 2141 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 2142 final int userId = UserHandle.getCallingUserId(); 2143 List<String> changedProviders = null; 2144 2145 synchronized (this) { 2146 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2147 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2148 if (activeAdmin.crossProfileWidgetProviders == null) { 2149 return false; 2150 } 2151 List<String> providers = activeAdmin.crossProfileWidgetProviders; 2152 if (providers.remove(packageName)) { 2153 changedProviders = new ArrayList<>(providers); 2154 saveSettingsLocked(userId); 2155 } 2156 } 2157 2158 if (changedProviders != null) { 2159 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 2160 return true; 2161 } 2162 2163 return false; 2164 } 2165 2166 @Override 2167 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 2168 synchronized (this) { 2169 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 2170 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2171 if (activeAdmin.crossProfileWidgetProviders == null 2172 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 2173 return null; 2174 } 2175 if (Binder.getCallingUid() == Process.myUid()) { 2176 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 2177 } else { 2178 return activeAdmin.crossProfileWidgetProviders; 2179 } 2180 } 2181 } 2182 2183 /** 2184 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 2185 * Returns 0 if not configured. 2186 */ 2187 private long getPasswordExpirationLocked(ComponentName who, int userHandle) { 2188 long timeout = 0L; 2189 2190 if (who != null) { 2191 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2192 return admin != null ? admin.passwordExpirationDate : timeout; 2193 } 2194 2195 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2196 for (UserInfo userInfo : profiles) { 2197 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2198 final int N = policy.mAdminList.size(); 2199 for (int i = 0; i < N; i++) { 2200 ActiveAdmin admin = policy.mAdminList.get(i); 2201 if (timeout == 0L || (admin.passwordExpirationDate != 0 2202 && timeout > admin.passwordExpirationDate)) { 2203 timeout = admin.passwordExpirationDate; 2204 } 2205 } 2206 } 2207 return timeout; 2208 } 2209 2210 public long getPasswordExpiration(ComponentName who, int userHandle) { 2211 if (!mHasFeature) { 2212 return 0L; 2213 } 2214 enforceCrossUserPermission(userHandle); 2215 synchronized (this) { 2216 return getPasswordExpirationLocked(who, userHandle); 2217 } 2218 } 2219 2220 public void setPasswordMinimumUpperCase(ComponentName who, int length) { 2221 if (!mHasFeature) { 2222 return; 2223 } 2224 Preconditions.checkNotNull(who, "ComponentName is null"); 2225 final int userHandle = UserHandle.getCallingUserId(); 2226 synchronized (this) { 2227 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2228 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2229 if (ap.minimumPasswordUpperCase != length) { 2230 ap.minimumPasswordUpperCase = length; 2231 saveSettingsLocked(userHandle); 2232 } 2233 } 2234 } 2235 2236 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle) { 2237 if (!mHasFeature) { 2238 return 0; 2239 } 2240 enforceCrossUserPermission(userHandle); 2241 synchronized (this) { 2242 int length = 0; 2243 2244 if (who != null) { 2245 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2246 return admin != null ? admin.minimumPasswordUpperCase : length; 2247 } 2248 2249 // Return strictest policy for this user and profiles that are visible from this user. 2250 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2251 for (UserInfo userInfo : profiles) { 2252 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2253 final int N = policy.mAdminList.size(); 2254 for (int i=0; i<N; i++) { 2255 ActiveAdmin admin = policy.mAdminList.get(i); 2256 if (length < admin.minimumPasswordUpperCase) { 2257 length = admin.minimumPasswordUpperCase; 2258 } 2259 } 2260 } 2261 return length; 2262 } 2263 } 2264 2265 public void setPasswordMinimumLowerCase(ComponentName who, int length) { 2266 Preconditions.checkNotNull(who, "ComponentName is null"); 2267 final int userHandle = UserHandle.getCallingUserId(); 2268 synchronized (this) { 2269 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2270 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2271 if (ap.minimumPasswordLowerCase != length) { 2272 ap.minimumPasswordLowerCase = length; 2273 saveSettingsLocked(userHandle); 2274 } 2275 } 2276 } 2277 2278 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle) { 2279 if (!mHasFeature) { 2280 return 0; 2281 } 2282 enforceCrossUserPermission(userHandle); 2283 synchronized (this) { 2284 int length = 0; 2285 2286 if (who != null) { 2287 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2288 return admin != null ? admin.minimumPasswordLowerCase : length; 2289 } 2290 2291 // Return strictest policy for this user and profiles that are visible from this user. 2292 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2293 for (UserInfo userInfo : profiles) { 2294 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2295 final int N = policy.mAdminList.size(); 2296 for (int i=0; i<N; i++) { 2297 ActiveAdmin admin = policy.mAdminList.get(i); 2298 if (length < admin.minimumPasswordLowerCase) { 2299 length = admin.minimumPasswordLowerCase; 2300 } 2301 } 2302 } 2303 return length; 2304 } 2305 } 2306 2307 public void setPasswordMinimumLetters(ComponentName who, int length) { 2308 if (!mHasFeature) { 2309 return; 2310 } 2311 Preconditions.checkNotNull(who, "ComponentName is null"); 2312 final int userHandle = UserHandle.getCallingUserId(); 2313 synchronized (this) { 2314 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2315 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2316 if (ap.minimumPasswordLetters != length) { 2317 ap.minimumPasswordLetters = length; 2318 saveSettingsLocked(userHandle); 2319 } 2320 } 2321 } 2322 2323 public int getPasswordMinimumLetters(ComponentName who, int userHandle) { 2324 if (!mHasFeature) { 2325 return 0; 2326 } 2327 enforceCrossUserPermission(userHandle); 2328 synchronized (this) { 2329 int length = 0; 2330 2331 if (who != null) { 2332 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2333 return admin != null ? admin.minimumPasswordLetters : length; 2334 } 2335 2336 // Return strictest policy for this user and profiles that are visible from this user. 2337 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2338 for (UserInfo userInfo : profiles) { 2339 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2340 final int N = policy.mAdminList.size(); 2341 for (int i=0; i<N; i++) { 2342 ActiveAdmin admin = policy.mAdminList.get(i); 2343 if (length < admin.minimumPasswordLetters) { 2344 length = admin.minimumPasswordLetters; 2345 } 2346 } 2347 } 2348 return length; 2349 } 2350 } 2351 2352 public void setPasswordMinimumNumeric(ComponentName who, int length) { 2353 if (!mHasFeature) { 2354 return; 2355 } 2356 Preconditions.checkNotNull(who, "ComponentName is null"); 2357 final int userHandle = UserHandle.getCallingUserId(); 2358 synchronized (this) { 2359 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2360 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2361 if (ap.minimumPasswordNumeric != length) { 2362 ap.minimumPasswordNumeric = length; 2363 saveSettingsLocked(userHandle); 2364 } 2365 } 2366 } 2367 2368 public int getPasswordMinimumNumeric(ComponentName who, int userHandle) { 2369 if (!mHasFeature) { 2370 return 0; 2371 } 2372 enforceCrossUserPermission(userHandle); 2373 synchronized (this) { 2374 int length = 0; 2375 2376 if (who != null) { 2377 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2378 return admin != null ? admin.minimumPasswordNumeric : length; 2379 } 2380 2381 // Return strictest policy for this user and profiles that are visible from this user. 2382 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2383 for (UserInfo userInfo : profiles) { 2384 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2385 final int N = policy.mAdminList.size(); 2386 for (int i = 0; i < N; i++) { 2387 ActiveAdmin admin = policy.mAdminList.get(i); 2388 if (length < admin.minimumPasswordNumeric) { 2389 length = admin.minimumPasswordNumeric; 2390 } 2391 } 2392 } 2393 return length; 2394 } 2395 } 2396 2397 public void setPasswordMinimumSymbols(ComponentName who, int length) { 2398 if (!mHasFeature) { 2399 return; 2400 } 2401 Preconditions.checkNotNull(who, "ComponentName is null"); 2402 final int userHandle = UserHandle.getCallingUserId(); 2403 synchronized (this) { 2404 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2405 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2406 if (ap.minimumPasswordSymbols != length) { 2407 ap.minimumPasswordSymbols = length; 2408 saveSettingsLocked(userHandle); 2409 } 2410 } 2411 } 2412 2413 public int getPasswordMinimumSymbols(ComponentName who, int userHandle) { 2414 if (!mHasFeature) { 2415 return 0; 2416 } 2417 enforceCrossUserPermission(userHandle); 2418 synchronized (this) { 2419 int length = 0; 2420 2421 if (who != null) { 2422 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2423 return admin != null ? admin.minimumPasswordSymbols : length; 2424 } 2425 2426 // Return strictest policy for this user and profiles that are visible from this user. 2427 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2428 for (UserInfo userInfo : profiles) { 2429 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2430 final int N = policy.mAdminList.size(); 2431 for (int i=0; i<N; i++) { 2432 ActiveAdmin admin = policy.mAdminList.get(i); 2433 if (length < admin.minimumPasswordSymbols) { 2434 length = admin.minimumPasswordSymbols; 2435 } 2436 } 2437 } 2438 return length; 2439 } 2440 } 2441 2442 public void setPasswordMinimumNonLetter(ComponentName who, int length) { 2443 if (!mHasFeature) { 2444 return; 2445 } 2446 Preconditions.checkNotNull(who, "ComponentName is null"); 2447 final int userHandle = UserHandle.getCallingUserId(); 2448 synchronized (this) { 2449 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2450 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2451 if (ap.minimumPasswordNonLetter != length) { 2452 ap.minimumPasswordNonLetter = length; 2453 saveSettingsLocked(userHandle); 2454 } 2455 } 2456 } 2457 2458 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle) { 2459 if (!mHasFeature) { 2460 return 0; 2461 } 2462 enforceCrossUserPermission(userHandle); 2463 synchronized (this) { 2464 int length = 0; 2465 2466 if (who != null) { 2467 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2468 return admin != null ? admin.minimumPasswordNonLetter : length; 2469 } 2470 2471 // Return strictest policy for this user and profiles that are visible from this user. 2472 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2473 for (UserInfo userInfo : profiles) { 2474 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2475 final int N = policy.mAdminList.size(); 2476 for (int i=0; i<N; i++) { 2477 ActiveAdmin admin = policy.mAdminList.get(i); 2478 if (length < admin.minimumPasswordNonLetter) { 2479 length = admin.minimumPasswordNonLetter; 2480 } 2481 } 2482 } 2483 return length; 2484 } 2485 } 2486 2487 public boolean isActivePasswordSufficient(int userHandle) { 2488 if (!mHasFeature) { 2489 return true; 2490 } 2491 enforceCrossUserPermission(userHandle); 2492 2493 synchronized (this) { 2494 2495 // The active password is stored in the user that runs the launcher 2496 // If the user this is called from is part of a profile group, that is the parent 2497 // of the group. 2498 UserInfo parent = getProfileParent(userHandle); 2499 int id = (parent == null) ? userHandle : parent.id; 2500 DevicePolicyData policy = getUserDataUnchecked(id); 2501 2502 // This API can only be called by an active device admin, 2503 // so try to retrieve it to check that the caller is one. 2504 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 2505 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle) 2506 || policy.mActivePasswordLength < getPasswordMinimumLength(null, userHandle)) { 2507 return false; 2508 } 2509 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2510 return true; 2511 } 2512 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase(null, userHandle) 2513 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase(null, userHandle) 2514 && policy.mActivePasswordLetters >= getPasswordMinimumLetters(null, userHandle) 2515 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric(null, userHandle) 2516 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols(null, userHandle) 2517 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter(null, userHandle); 2518 } 2519 } 2520 2521 public int getCurrentFailedPasswordAttempts(int userHandle) { 2522 synchronized (this) { 2523 // This API can only be called by an active device admin, 2524 // so try to retrieve it to check that the caller is one. 2525 getActiveAdminForCallerLocked(null, 2526 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2527 2528 // The active password is stored in the parent. 2529 UserInfo parent = getProfileParent(userHandle); 2530 int id = (parent == null) ? userHandle : parent.id; 2531 DevicePolicyData policy = getUserDataUnchecked(id); 2532 2533 return policy.mFailedPasswordAttempts; 2534 } 2535 } 2536 2537 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num) { 2538 if (!mHasFeature) { 2539 return; 2540 } 2541 Preconditions.checkNotNull(who, "ComponentName is null"); 2542 final int userHandle = UserHandle.getCallingUserId(); 2543 synchronized (this) { 2544 // This API can only be called by an active device admin, 2545 // so try to retrieve it to check that the caller is one. 2546 getActiveAdminForCallerLocked(who, 2547 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 2548 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2549 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN); 2550 if (ap.maximumFailedPasswordsForWipe != num) { 2551 ap.maximumFailedPasswordsForWipe = num; 2552 saveSettingsLocked(userHandle); 2553 } 2554 } 2555 } 2556 2557 @Override 2558 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle) { 2559 if (!mHasFeature) { 2560 return 0; 2561 } 2562 enforceCrossUserPermission(userHandle); 2563 synchronized (this) { 2564 ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle) 2565 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 2566 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 2567 } 2568 } 2569 2570 @Override 2571 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle) { 2572 if (!mHasFeature) { 2573 return UserHandle.USER_NULL; 2574 } 2575 enforceCrossUserPermission(userHandle); 2576 synchronized (this) { 2577 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 2578 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 2579 } 2580 } 2581 2582 /** 2583 * Returns the admin with the strictest policy on maximum failed passwords for this user and all 2584 * profiles that are visible from this user. If the policy for the primary and any other profile 2585 * are equal, it returns the admin for the primary profile. 2586 * Returns {@code null} if none of them have that policy set. 2587 */ 2588 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) { 2589 int count = 0; 2590 ActiveAdmin strictestAdmin = null; 2591 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 2592 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2593 for (ActiveAdmin admin : policy.mAdminList) { 2594 if (admin.maximumFailedPasswordsForWipe == 2595 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 2596 continue; // No max number of failed passwords policy set for this profile. 2597 } 2598 2599 // We always favor the primary profile if several profiles have the same value set. 2600 if (count == 0 || 2601 count > admin.maximumFailedPasswordsForWipe || 2602 (userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) { 2603 count = admin.maximumFailedPasswordsForWipe; 2604 strictestAdmin = admin; 2605 } 2606 } 2607 } 2608 return strictestAdmin; 2609 } 2610 2611 public boolean resetPassword(String passwordOrNull, int flags) { 2612 if (!mHasFeature) { 2613 return false; 2614 } 2615 final int userHandle = UserHandle.getCallingUserId(); 2616 enforceNotManagedProfile(userHandle, "reset the password"); 2617 2618 String password = passwordOrNull != null ? passwordOrNull : ""; 2619 2620 int quality; 2621 synchronized (this) { 2622 // This api can only be called by an active device admin, 2623 // so try to retrieve it to check that the caller is one. 2624 getActiveAdminForCallerLocked(null, 2625 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 2626 quality = getPasswordQuality(null, userHandle); 2627 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 2628 int realQuality = LockPatternUtils.computePasswordQuality(password); 2629 if (realQuality < quality 2630 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2631 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 2632 + Integer.toHexString(realQuality) 2633 + " does not meet required quality 0x" 2634 + Integer.toHexString(quality)); 2635 return false; 2636 } 2637 quality = Math.max(realQuality, quality); 2638 } 2639 int length = getPasswordMinimumLength(null, userHandle); 2640 if (password.length() < length) { 2641 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 2642 + " does not meet required length " + length); 2643 return false; 2644 } 2645 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 2646 int letters = 0; 2647 int uppercase = 0; 2648 int lowercase = 0; 2649 int numbers = 0; 2650 int symbols = 0; 2651 int nonletter = 0; 2652 for (int i = 0; i < password.length(); i++) { 2653 char c = password.charAt(i); 2654 if (c >= 'A' && c <= 'Z') { 2655 letters++; 2656 uppercase++; 2657 } else if (c >= 'a' && c <= 'z') { 2658 letters++; 2659 lowercase++; 2660 } else if (c >= '0' && c <= '9') { 2661 numbers++; 2662 nonletter++; 2663 } else { 2664 symbols++; 2665 nonletter++; 2666 } 2667 } 2668 int neededLetters = getPasswordMinimumLetters(null, userHandle); 2669 if(letters < neededLetters) { 2670 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 2671 + " does not meet required number of letters " + neededLetters); 2672 return false; 2673 } 2674 int neededNumbers = getPasswordMinimumNumeric(null, userHandle); 2675 if (numbers < neededNumbers) { 2676 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 2677 + " does not meet required number of numerical digits " 2678 + neededNumbers); 2679 return false; 2680 } 2681 int neededLowerCase = getPasswordMinimumLowerCase(null, userHandle); 2682 if (lowercase < neededLowerCase) { 2683 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 2684 + " does not meet required number of lowercase letters " 2685 + neededLowerCase); 2686 return false; 2687 } 2688 int neededUpperCase = getPasswordMinimumUpperCase(null, userHandle); 2689 if (uppercase < neededUpperCase) { 2690 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 2691 + " does not meet required number of uppercase letters " 2692 + neededUpperCase); 2693 return false; 2694 } 2695 int neededSymbols = getPasswordMinimumSymbols(null, userHandle); 2696 if (symbols < neededSymbols) { 2697 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 2698 + " does not meet required number of special symbols " + neededSymbols); 2699 return false; 2700 } 2701 int neededNonLetter = getPasswordMinimumNonLetter(null, userHandle); 2702 if (nonletter < neededNonLetter) { 2703 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 2704 + " does not meet required number of non-letter characters " 2705 + neededNonLetter); 2706 return false; 2707 } 2708 } 2709 } 2710 2711 int callingUid = Binder.getCallingUid(); 2712 DevicePolicyData policy = getUserData(userHandle); 2713 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 2714 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 2715 return false; 2716 } 2717 2718 // Don't do this with the lock held, because it is going to call 2719 // back in to the service. 2720 long ident = Binder.clearCallingIdentity(); 2721 try { 2722 LockPatternUtils utils = new LockPatternUtils(mContext); 2723 if (!TextUtils.isEmpty(password)) { 2724 utils.saveLockPassword(password, quality, userHandle); 2725 } else { 2726 utils.clearLock(userHandle); 2727 } 2728 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 2729 if (requireEntry) { 2730 utils.requireCredentialEntry(UserHandle.USER_ALL); 2731 } 2732 synchronized (this) { 2733 int newOwner = requireEntry ? callingUid : -1; 2734 if (policy.mPasswordOwner != newOwner) { 2735 policy.mPasswordOwner = newOwner; 2736 saveSettingsLocked(userHandle); 2737 } 2738 } 2739 } finally { 2740 Binder.restoreCallingIdentity(ident); 2741 } 2742 2743 return true; 2744 } 2745 2746 public void setMaximumTimeToLock(ComponentName who, long timeMs) { 2747 if (!mHasFeature) { 2748 return; 2749 } 2750 Preconditions.checkNotNull(who, "ComponentName is null"); 2751 final int userHandle = UserHandle.getCallingUserId(); 2752 synchronized (this) { 2753 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 2754 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2755 if (ap.maximumTimeToUnlock != timeMs) { 2756 ap.maximumTimeToUnlock = timeMs; 2757 saveSettingsLocked(userHandle); 2758 updateMaximumTimeToLockLocked(getUserData(userHandle)); 2759 } 2760 } 2761 } 2762 2763 void updateMaximumTimeToLockLocked(DevicePolicyData policy) { 2764 long timeMs = getMaximumTimeToLock(null, policy.mUserHandle); 2765 if (policy.mLastMaximumTimeToLock == timeMs) { 2766 return; 2767 } 2768 2769 long ident = Binder.clearCallingIdentity(); 2770 try { 2771 if (timeMs <= 0) { 2772 timeMs = Integer.MAX_VALUE; 2773 } else { 2774 // Make sure KEEP_SCREEN_ON is disabled, since that 2775 // would allow bypassing of the maximum time to lock. 2776 Settings.Global.putInt(mContext.getContentResolver(), 2777 Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 2778 } 2779 2780 policy.mLastMaximumTimeToLock = timeMs; 2781 mPowerManagerInternal.setMaximumScreenOffTimeoutFromDeviceAdmin((int)timeMs); 2782 } finally { 2783 Binder.restoreCallingIdentity(ident); 2784 } 2785 } 2786 2787 public long getMaximumTimeToLock(ComponentName who, int userHandle) { 2788 if (!mHasFeature) { 2789 return 0; 2790 } 2791 enforceCrossUserPermission(userHandle); 2792 synchronized (this) { 2793 long time = 0; 2794 2795 if (who != null) { 2796 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2797 return admin != null ? admin.maximumTimeToUnlock : time; 2798 } 2799 2800 // Return strictest policy for this user and profiles that are visible from this user. 2801 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2802 for (UserInfo userInfo : profiles) { 2803 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 2804 final int N = policy.mAdminList.size(); 2805 for (int i=0; i<N; i++) { 2806 ActiveAdmin admin = policy.mAdminList.get(i); 2807 if (time == 0) { 2808 time = admin.maximumTimeToUnlock; 2809 } else if (admin.maximumTimeToUnlock != 0 2810 && time > admin.maximumTimeToUnlock) { 2811 time = admin.maximumTimeToUnlock; 2812 } 2813 } 2814 } 2815 return time; 2816 } 2817 } 2818 2819 public void lockNow() { 2820 if (!mHasFeature) { 2821 return; 2822 } 2823 synchronized (this) { 2824 // This API can only be called by an active device admin, 2825 // so try to retrieve it to check that the caller is one. 2826 getActiveAdminForCallerLocked(null, 2827 DeviceAdminInfo.USES_POLICY_FORCE_LOCK); 2828 lockNowUnchecked(); 2829 } 2830 } 2831 2832 private void lockNowUnchecked() { 2833 long ident = Binder.clearCallingIdentity(); 2834 try { 2835 // Power off the display 2836 mPowerManager.goToSleep(SystemClock.uptimeMillis(), 2837 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 2838 // Ensure the device is locked 2839 new LockPatternUtils(mContext).requireCredentialEntry(UserHandle.USER_ALL); 2840 getWindowManager().lockNow(null); 2841 } catch (RemoteException e) { 2842 } finally { 2843 Binder.restoreCallingIdentity(ident); 2844 } 2845 } 2846 2847 private boolean isExtStorageEncrypted() { 2848 String state = SystemProperties.get("vold.decrypt"); 2849 return !"".equals(state); 2850 } 2851 2852 @Override 2853 public void enforceCanManageCaCerts(ComponentName who) { 2854 if (who == null) { 2855 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 2856 } else { 2857 synchronized (this) { 2858 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2859 } 2860 } 2861 } 2862 2863 @Override 2864 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 2865 enforceCanManageCaCerts(admin); 2866 2867 byte[] pemCert; 2868 try { 2869 X509Certificate cert = parseCert(certBuffer); 2870 pemCert = Credentials.convertToPem(cert); 2871 } catch (CertificateException ce) { 2872 Log.e(LOG_TAG, "Problem converting cert", ce); 2873 return false; 2874 } catch (IOException ioe) { 2875 Log.e(LOG_TAG, "Problem reading cert", ioe); 2876 return false; 2877 } 2878 2879 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2880 final long id = Binder.clearCallingIdentity(); 2881 try { 2882 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2883 try { 2884 keyChainConnection.getService().installCaCertificate(pemCert); 2885 return true; 2886 } catch (RemoteException e) { 2887 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 2888 } finally { 2889 keyChainConnection.close(); 2890 } 2891 } catch (InterruptedException e1) { 2892 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 2893 Thread.currentThread().interrupt(); 2894 } finally { 2895 Binder.restoreCallingIdentity(id); 2896 } 2897 return false; 2898 } 2899 2900 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 2901 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 2902 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 2903 certBuffer)); 2904 } 2905 2906 @Override 2907 public void uninstallCaCert(ComponentName admin, String alias) { 2908 enforceCanManageCaCerts(admin); 2909 2910 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2911 final long id = Binder.clearCallingIdentity(); 2912 try { 2913 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2914 try { 2915 keyChainConnection.getService().deleteCaCertificate(alias); 2916 } catch (RemoteException e) { 2917 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 2918 } finally { 2919 keyChainConnection.close(); 2920 } 2921 } catch (InterruptedException ie) { 2922 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 2923 Thread.currentThread().interrupt(); 2924 } finally { 2925 Binder.restoreCallingIdentity(id); 2926 } 2927 } 2928 2929 @Override 2930 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias) { 2931 Preconditions.checkNotNull(who, "ComponentName is null"); 2932 synchronized (this) { 2933 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 2934 } 2935 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 2936 final long id = Binder.clearCallingIdentity(); 2937 try { 2938 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 2939 try { 2940 IKeyChainService keyChain = keyChainConnection.getService(); 2941 return keyChain.installKeyPair(privKey, cert, alias); 2942 } catch (RemoteException e) { 2943 Log.e(LOG_TAG, "Installing certificate", e); 2944 } finally { 2945 keyChainConnection.close(); 2946 } 2947 } catch (InterruptedException e) { 2948 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 2949 Thread.currentThread().interrupt(); 2950 } finally { 2951 Binder.restoreCallingIdentity(id); 2952 } 2953 return false; 2954 } 2955 2956 @Override 2957 public void choosePrivateKeyAlias(final int uid, final String host, int port, final String url, 2958 final String alias, final IBinder response) { 2959 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 2960 if (UserHandle.getAppId(Binder.getCallingUid()) != Process.SYSTEM_UID) { 2961 return; 2962 } 2963 2964 final UserHandle caller = Binder.getCallingUserHandle(); 2965 final ComponentName profileOwner = getProfileOwner(caller.getIdentifier()); 2966 2967 if (profileOwner == null) { 2968 sendPrivateKeyAliasResponse(null, response); 2969 return; 2970 } 2971 2972 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 2973 intent.setComponent(profileOwner); 2974 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 2975 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_HOST, host); 2976 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_PORT, port); 2977 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URL, url); 2978 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 2979 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 2980 2981 final long id = Binder.clearCallingIdentity(); 2982 try { 2983 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 2984 @Override 2985 public void onReceive(Context context, Intent intent) { 2986 final String chosenAlias = getResultData(); 2987 sendPrivateKeyAliasResponse(chosenAlias, response); 2988 } 2989 }, null, Activity.RESULT_OK, null, null); 2990 } finally { 2991 Binder.restoreCallingIdentity(id); 2992 } 2993 } 2994 2995 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 2996 final IKeyChainAliasCallback keyChainAliasResponse = 2997 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 2998 new AsyncTask<Void, Void, Void>() { 2999 @Override 3000 protected Void doInBackground(Void... unused) { 3001 try { 3002 keyChainAliasResponse.alias(alias); 3003 } catch (Exception e) { 3004 // Catch everything (not just RemoteException): caller could throw a 3005 // RuntimeException back across processes. 3006 Log.e(LOG_TAG, "error while responding to callback", e); 3007 } 3008 return null; 3009 } 3010 }.execute(); 3011 } 3012 3013 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 3014 // If the SD card is encrypted and non-removable, we have to force a wipe. 3015 boolean forceExtWipe = !Environment.isExternalStorageRemovable() && isExtStorageEncrypted(); 3016 3017 // Note: we can only do the wipe via ExternalStorageFormatter if the volume is not emulated. 3018 if ((forceExtWipe || wipeExtRequested) && !Environment.isExternalStorageEmulated()) { 3019 Intent intent = new Intent(ExternalStorageFormatter.FORMAT_AND_FACTORY_RESET); 3020 intent.putExtra(ExternalStorageFormatter.EXTRA_ALWAYS_RESET, true); 3021 intent.putExtra(Intent.EXTRA_REASON, reason); 3022 intent.setComponent(ExternalStorageFormatter.COMPONENT_NAME); 3023 mWakeLock.acquire(10000); 3024 mContext.startService(intent); 3025 } else { 3026 try { 3027 RecoverySystem.rebootWipeUserData(mContext, reason); 3028 } catch (IOException | SecurityException e) { 3029 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 3030 } 3031 } 3032 } 3033 3034 @Override 3035 public void wipeData(int flags, final int userHandle) { 3036 if (!mHasFeature) { 3037 return; 3038 } 3039 enforceCrossUserPermission(userHandle); 3040 synchronized (this) { 3041 // This API can only be called by an active device admin, 3042 // so try to retrieve it to check that the caller is one. 3043 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 3044 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 3045 3046 final String source; 3047 final ComponentName cname = admin.info.getComponent(); 3048 if (cname != null) { 3049 source = cname.flattenToShortString(); 3050 } else { 3051 source = admin.info.getPackageName(); 3052 } 3053 3054 long ident = Binder.clearCallingIdentity(); 3055 try { 3056 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 3057 if (userHandle != UserHandle.USER_OWNER 3058 || !isDeviceOwner(admin.info.getPackageName())) { 3059 throw new SecurityException( 3060 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 3061 } 3062 PersistentDataBlockManager manager = (PersistentDataBlockManager) 3063 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 3064 manager.wipe(); 3065 } 3066 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 3067 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 3068 "DevicePolicyManager.wipeData() from " + source); 3069 } finally { 3070 Binder.restoreCallingIdentity(ident); 3071 } 3072 } 3073 } 3074 3075 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 3076 if (userHandle == UserHandle.USER_OWNER) { 3077 wipeDataLocked(wipeExtRequested, reason); 3078 } else { 3079 mHandler.post(new Runnable() { 3080 public void run() { 3081 try { 3082 IActivityManager am = ActivityManagerNative.getDefault(); 3083 if (am.getCurrentUser().id == userHandle) { 3084 am.switchUser(UserHandle.USER_OWNER); 3085 } 3086 if (!mUserManager.removeUser(userHandle)) { 3087 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 3088 } 3089 } catch (RemoteException re) { 3090 // Shouldn't happen 3091 } 3092 } 3093 }); 3094 } 3095 } 3096 3097 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 3098 if (!mHasFeature) { 3099 return; 3100 } 3101 enforceCrossUserPermission(userHandle); 3102 mContext.enforceCallingOrSelfPermission( 3103 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3104 3105 synchronized (this) { 3106 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 3107 if (admin == null) { 3108 try { 3109 result.sendResult(null); 3110 } catch (RemoteException e) { 3111 } 3112 return; 3113 } 3114 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 3115 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 3116 intent.setComponent(admin.info.getComponent()); 3117 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 3118 null, new BroadcastReceiver() { 3119 @Override 3120 public void onReceive(Context context, Intent intent) { 3121 try { 3122 result.sendResult(getResultExtras(false)); 3123 } catch (RemoteException e) { 3124 } 3125 } 3126 }, null, Activity.RESULT_OK, null, null); 3127 } 3128 } 3129 3130 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 3131 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 3132 if (!mHasFeature) { 3133 return; 3134 } 3135 enforceCrossUserPermission(userHandle); 3136 enforceNotManagedProfile(userHandle, "set the active password"); 3137 3138 mContext.enforceCallingOrSelfPermission( 3139 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3140 DevicePolicyData p = getUserData(userHandle); 3141 3142 validateQualityConstant(quality); 3143 3144 synchronized (this) { 3145 if (p.mActivePasswordQuality != quality || p.mActivePasswordLength != length 3146 || p.mFailedPasswordAttempts != 0 || p.mActivePasswordLetters != letters 3147 || p.mActivePasswordUpperCase != uppercase 3148 || p.mActivePasswordLowerCase != lowercase 3149 || p.mActivePasswordNumeric != numbers 3150 || p.mActivePasswordSymbols != symbols 3151 || p.mActivePasswordNonLetter != nonletter) { 3152 long ident = Binder.clearCallingIdentity(); 3153 try { 3154 p.mActivePasswordQuality = quality; 3155 p.mActivePasswordLength = length; 3156 p.mActivePasswordLetters = letters; 3157 p.mActivePasswordLowerCase = lowercase; 3158 p.mActivePasswordUpperCase = uppercase; 3159 p.mActivePasswordNumeric = numbers; 3160 p.mActivePasswordSymbols = symbols; 3161 p.mActivePasswordNonLetter = nonletter; 3162 p.mFailedPasswordAttempts = 0; 3163 saveSettingsLocked(userHandle); 3164 updatePasswordExpirationsLocked(userHandle); 3165 setExpirationAlarmCheckLocked(mContext, p); 3166 sendAdminCommandToSelfAndProfilesLocked( 3167 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 3168 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 3169 } finally { 3170 Binder.restoreCallingIdentity(ident); 3171 } 3172 } 3173 } 3174 } 3175 3176 /** 3177 * Called any time the device password is updated. Resets all password expiration clocks. 3178 */ 3179 private void updatePasswordExpirationsLocked(int userHandle) { 3180 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3181 for (UserInfo userInfo : profiles) { 3182 int profileId = userInfo.id; 3183 DevicePolicyData policy = getUserDataUnchecked(profileId); 3184 final int N = policy.mAdminList.size(); 3185 if (N > 0) { 3186 for (int i=0; i<N; i++) { 3187 ActiveAdmin admin = policy.mAdminList.get(i); 3188 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 3189 long timeout = admin.passwordExpirationTimeout; 3190 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3191 admin.passwordExpirationDate = expiration; 3192 } 3193 } 3194 } 3195 saveSettingsLocked(profileId); 3196 } 3197 } 3198 3199 public void reportFailedPasswordAttempt(int userHandle) { 3200 enforceCrossUserPermission(userHandle); 3201 enforceNotManagedProfile(userHandle, "report failed password attempt"); 3202 mContext.enforceCallingOrSelfPermission( 3203 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3204 3205 long ident = Binder.clearCallingIdentity(); 3206 try { 3207 boolean wipeData = false; 3208 int identifier = 0; 3209 synchronized (this) { 3210 DevicePolicyData policy = getUserData(userHandle); 3211 policy.mFailedPasswordAttempts++; 3212 saveSettingsLocked(userHandle); 3213 if (mHasFeature) { 3214 ActiveAdmin strictestAdmin = 3215 getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle); 3216 int max = strictestAdmin != null 3217 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 3218 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 3219 // Wipe the user/profile associated with the policy that was violated. This 3220 // is not necessarily calling user: if the policy that fired was from a 3221 // managed profile rather than the main user profile, we wipe former only. 3222 wipeData = true; 3223 identifier = strictestAdmin.getUserHandle().getIdentifier(); 3224 } 3225 sendAdminCommandToSelfAndProfilesLocked( 3226 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 3227 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3228 } 3229 } 3230 if (wipeData) { 3231 // Call without holding lock. 3232 wipeDeviceOrUserLocked(false, identifier, 3233 "reportFailedPasswordAttempt()"); 3234 } 3235 } finally { 3236 Binder.restoreCallingIdentity(ident); 3237 } 3238 } 3239 3240 public void reportSuccessfulPasswordAttempt(int userHandle) { 3241 enforceCrossUserPermission(userHandle); 3242 mContext.enforceCallingOrSelfPermission( 3243 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 3244 3245 synchronized (this) { 3246 DevicePolicyData policy = getUserData(userHandle); 3247 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 3248 long ident = Binder.clearCallingIdentity(); 3249 try { 3250 policy.mFailedPasswordAttempts = 0; 3251 policy.mPasswordOwner = -1; 3252 saveSettingsLocked(userHandle); 3253 if (mHasFeature) { 3254 sendAdminCommandToSelfAndProfilesLocked( 3255 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 3256 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 3257 } 3258 } finally { 3259 Binder.restoreCallingIdentity(ident); 3260 } 3261 } 3262 } 3263 } 3264 3265 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 3266 String exclusionList) { 3267 if (!mHasFeature) { 3268 return null; 3269 } 3270 synchronized(this) { 3271 Preconditions.checkNotNull(who, "ComponentName is null"); 3272 3273 // Only check if owner has set global proxy. We don't allow other users to set it. 3274 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3275 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3276 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 3277 3278 // Scan through active admins and find if anyone has already 3279 // set the global proxy. 3280 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 3281 for (ComponentName component : compSet) { 3282 ActiveAdmin ap = policy.mAdminMap.get(component); 3283 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 3284 // Another admin already sets the global proxy 3285 // Return it to the caller. 3286 return component; 3287 } 3288 } 3289 3290 // If the user is not the owner, don't set the global proxy. Fail silently. 3291 if (UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 3292 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 3293 + UserHandle.getCallingUserId() + " is not permitted."); 3294 return null; 3295 } 3296 if (proxySpec == null) { 3297 admin.specifiesGlobalProxy = false; 3298 admin.globalProxySpec = null; 3299 admin.globalProxyExclusionList = null; 3300 } else { 3301 3302 admin.specifiesGlobalProxy = true; 3303 admin.globalProxySpec = proxySpec; 3304 admin.globalProxyExclusionList = exclusionList; 3305 } 3306 3307 // Reset the global proxy accordingly 3308 // Do this using system permissions, as apps cannot write to secure settings 3309 long origId = Binder.clearCallingIdentity(); 3310 try { 3311 resetGlobalProxyLocked(policy); 3312 } finally { 3313 Binder.restoreCallingIdentity(origId); 3314 } 3315 return null; 3316 } 3317 } 3318 3319 public ComponentName getGlobalProxyAdmin(int userHandle) { 3320 if (!mHasFeature) { 3321 return null; 3322 } 3323 enforceCrossUserPermission(userHandle); 3324 synchronized(this) { 3325 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3326 // Scan through active admins and find if anyone has already 3327 // set the global proxy. 3328 final int N = policy.mAdminList.size(); 3329 for (int i = 0; i < N; i++) { 3330 ActiveAdmin ap = policy.mAdminList.get(i); 3331 if (ap.specifiesGlobalProxy) { 3332 // Device admin sets the global proxy 3333 // Return it to the caller. 3334 return ap.info.getComponent(); 3335 } 3336 } 3337 } 3338 // No device admin sets the global proxy. 3339 return null; 3340 } 3341 3342 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 3343 synchronized (this) { 3344 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3345 } 3346 long token = Binder.clearCallingIdentity(); 3347 try { 3348 ConnectivityManager connectivityManager = (ConnectivityManager) 3349 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 3350 connectivityManager.setGlobalProxy(proxyInfo); 3351 } finally { 3352 Binder.restoreCallingIdentity(token); 3353 } 3354 } 3355 3356 private void resetGlobalProxyLocked(DevicePolicyData policy) { 3357 final int N = policy.mAdminList.size(); 3358 for (int i = 0; i < N; i++) { 3359 ActiveAdmin ap = policy.mAdminList.get(i); 3360 if (ap.specifiesGlobalProxy) { 3361 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 3362 return; 3363 } 3364 } 3365 // No device admins defining global proxies - reset global proxy settings to none 3366 saveGlobalProxyLocked(null, null); 3367 } 3368 3369 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 3370 if (exclusionList == null) { 3371 exclusionList = ""; 3372 } 3373 if (proxySpec == null) { 3374 proxySpec = ""; 3375 } 3376 // Remove white spaces 3377 proxySpec = proxySpec.trim(); 3378 String data[] = proxySpec.split(":"); 3379 int proxyPort = 8080; 3380 if (data.length > 1) { 3381 try { 3382 proxyPort = Integer.parseInt(data[1]); 3383 } catch (NumberFormatException e) {} 3384 } 3385 exclusionList = exclusionList.trim(); 3386 ContentResolver res = mContext.getContentResolver(); 3387 3388 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 3389 if (!proxyProperties.isValid()) { 3390 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 3391 return; 3392 } 3393 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 3394 Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 3395 Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 3396 exclusionList); 3397 } 3398 3399 /** 3400 * Set the storage encryption request for a single admin. Returns the new total request 3401 * status (for all admins). 3402 */ 3403 public int setStorageEncryption(ComponentName who, boolean encrypt) { 3404 if (!mHasFeature) { 3405 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3406 } 3407 Preconditions.checkNotNull(who, "ComponentName is null"); 3408 final int userHandle = UserHandle.getCallingUserId(); 3409 synchronized (this) { 3410 // Check for permissions 3411 // Only owner can set storage encryption 3412 if (userHandle != UserHandle.USER_OWNER 3413 || UserHandle.getCallingUserId() != UserHandle.USER_OWNER) { 3414 Slog.w(LOG_TAG, "Only owner is allowed to set storage encryption. User " 3415 + UserHandle.getCallingUserId() + " is not permitted."); 3416 return 0; 3417 } 3418 3419 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3420 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 3421 3422 // Quick exit: If the filesystem does not support encryption, we can exit early. 3423 if (!isEncryptionSupported()) { 3424 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3425 } 3426 3427 // (1) Record the value for the admin so it's sticky 3428 if (ap.encryptionRequested != encrypt) { 3429 ap.encryptionRequested = encrypt; 3430 saveSettingsLocked(userHandle); 3431 } 3432 3433 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3434 // (2) Compute "max" for all admins 3435 boolean newRequested = false; 3436 final int N = policy.mAdminList.size(); 3437 for (int i = 0; i < N; i++) { 3438 newRequested |= policy.mAdminList.get(i).encryptionRequested; 3439 } 3440 3441 // Notify OS of new request 3442 setEncryptionRequested(newRequested); 3443 3444 // Return the new global request status 3445 return newRequested 3446 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3447 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3448 } 3449 } 3450 3451 /** 3452 * Get the current storage encryption request status for a given admin, or aggregate of all 3453 * active admins. 3454 */ 3455 public boolean getStorageEncryption(ComponentName who, int userHandle) { 3456 if (!mHasFeature) { 3457 return false; 3458 } 3459 enforceCrossUserPermission(userHandle); 3460 synchronized (this) { 3461 // Check for permissions if a particular caller is specified 3462 if (who != null) { 3463 // When checking for a single caller, status is based on caller's request 3464 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 3465 return ap != null ? ap.encryptionRequested : false; 3466 } 3467 3468 // If no particular caller is specified, return the aggregate set of requests. 3469 // This is short circuited by returning true on the first hit. 3470 DevicePolicyData policy = getUserData(userHandle); 3471 final int N = policy.mAdminList.size(); 3472 for (int i = 0; i < N; i++) { 3473 if (policy.mAdminList.get(i).encryptionRequested) { 3474 return true; 3475 } 3476 } 3477 return false; 3478 } 3479 } 3480 3481 /** 3482 * Get the current encryption status of the device. 3483 */ 3484 public int getStorageEncryptionStatus(int userHandle) { 3485 if (!mHasFeature) { 3486 // Ok to return current status. 3487 } 3488 enforceCrossUserPermission(userHandle); 3489 return getEncryptionStatus(); 3490 } 3491 3492 /** 3493 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 3494 */ 3495 private boolean isEncryptionSupported() { 3496 // Note, this can be implemented as 3497 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3498 // But is provided as a separate internal method if there's a faster way to do a 3499 // simple check for supported-or-not. 3500 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3501 } 3502 3503 /** 3504 * Hook to low-levels: Reporting the current status of encryption. 3505 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED} or 3506 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE} or 3507 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 3508 */ 3509 private int getEncryptionStatus() { 3510 String status = SystemProperties.get("ro.crypto.state", "unsupported"); 3511 if ("encrypted".equalsIgnoreCase(status)) { 3512 final long token = Binder.clearCallingIdentity(); 3513 try { 3514 return LockPatternUtils.isDeviceEncrypted() 3515 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 3516 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3517 } finally { 3518 Binder.restoreCallingIdentity(token); 3519 } 3520 } else if ("unencrypted".equalsIgnoreCase(status)) { 3521 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 3522 } else { 3523 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 3524 } 3525 } 3526 3527 /** 3528 * Hook to low-levels: If needed, record the new admin setting for encryption. 3529 */ 3530 private void setEncryptionRequested(boolean encrypt) { 3531 } 3532 3533 3534 /** 3535 * Set whether the screen capture is disabled for the user managed by the specified admin. 3536 */ 3537 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 3538 if (!mHasFeature) { 3539 return; 3540 } 3541 Preconditions.checkNotNull(who, "ComponentName is null"); 3542 final int userHandle = UserHandle.getCallingUserId(); 3543 synchronized (this) { 3544 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3545 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3546 if (ap.disableScreenCapture != disabled) { 3547 ap.disableScreenCapture = disabled; 3548 saveSettingsLocked(userHandle); 3549 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 3550 } 3551 } 3552 } 3553 3554 /** 3555 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 3556 * active admin (if given admin is null). 3557 */ 3558 public boolean getScreenCaptureDisabled(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.disableScreenCapture : false; 3566 } 3567 3568 DevicePolicyData policy = getUserData(userHandle); 3569 final int N = policy.mAdminList.size(); 3570 for (int i = 0; i < N; i++) { 3571 ActiveAdmin admin = policy.mAdminList.get(i); 3572 if (admin.disableScreenCapture) { 3573 return true; 3574 } 3575 } 3576 return false; 3577 } 3578 } 3579 3580 private void updateScreenCaptureDisabledInWindowManager(int userHandle, boolean disabled) { 3581 long ident = Binder.clearCallingIdentity(); 3582 try { 3583 getWindowManager().setScreenCaptureDisabled(userHandle, disabled); 3584 } catch (RemoteException e) { 3585 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 3586 } finally { 3587 Binder.restoreCallingIdentity(ident); 3588 } 3589 } 3590 3591 /** 3592 * Set whether auto time is required by the specified admin (must be device owner). 3593 */ 3594 public void setAutoTimeRequired(ComponentName who, boolean required) { 3595 if (!mHasFeature) { 3596 return; 3597 } 3598 Preconditions.checkNotNull(who, "ComponentName is null"); 3599 final int userHandle = UserHandle.getCallingUserId(); 3600 synchronized (this) { 3601 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 3602 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 3603 if (admin.requireAutoTime != required) { 3604 admin.requireAutoTime = required; 3605 saveSettingsLocked(userHandle); 3606 } 3607 } 3608 3609 // Turn AUTO_TIME on in settings if it is required 3610 if (required) { 3611 long ident = Binder.clearCallingIdentity(); 3612 try { 3613 Settings.Global.putInt(mContext.getContentResolver(), 3614 Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 3615 } finally { 3616 Binder.restoreCallingIdentity(ident); 3617 } 3618 } 3619 } 3620 3621 /** 3622 * Returns whether or not auto time is required by the device owner. 3623 */ 3624 public boolean getAutoTimeRequired() { 3625 if (!mHasFeature) { 3626 return false; 3627 } 3628 synchronized (this) { 3629 ActiveAdmin deviceOwner = getDeviceOwnerAdmin(); 3630 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 3631 } 3632 } 3633 3634 /** 3635 * The system property used to share the state of the camera. The native camera service 3636 * is expected to read this property and act accordingly. The userId should be appended 3637 * to this key. 3638 */ 3639 public static final String SYSTEM_PROP_DISABLE_CAMERA_PREFIX = "sys.secpolicy.camera.off_"; 3640 3641 /** 3642 * Disables all device cameras according to the specified admin. 3643 */ 3644 public void setCameraDisabled(ComponentName who, boolean disabled) { 3645 if (!mHasFeature) { 3646 return; 3647 } 3648 Preconditions.checkNotNull(who, "ComponentName is null"); 3649 final int userHandle = UserHandle.getCallingUserId(); 3650 synchronized (this) { 3651 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3652 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 3653 if (ap.disableCamera != disabled) { 3654 ap.disableCamera = disabled; 3655 saveSettingsLocked(userHandle); 3656 } 3657 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 3658 } 3659 } 3660 3661 /** 3662 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 3663 * active admins. 3664 */ 3665 public boolean getCameraDisabled(ComponentName who, int userHandle) { 3666 if (!mHasFeature) { 3667 return false; 3668 } 3669 synchronized (this) { 3670 if (who != null) { 3671 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3672 return (admin != null) ? admin.disableCamera : false; 3673 } 3674 3675 DevicePolicyData policy = getUserData(userHandle); 3676 // Determine whether or not the device camera is disabled for any active admins. 3677 final int N = policy.mAdminList.size(); 3678 for (int i = 0; i < N; i++) { 3679 ActiveAdmin admin = policy.mAdminList.get(i); 3680 if (admin.disableCamera) { 3681 return true; 3682 } 3683 } 3684 return false; 3685 } 3686 } 3687 3688 /** 3689 * Selectively disable keyguard features. 3690 */ 3691 public void setKeyguardDisabledFeatures(ComponentName who, int which) { 3692 if (!mHasFeature) { 3693 return; 3694 } 3695 Preconditions.checkNotNull(who, "ComponentName is null"); 3696 final int userHandle = UserHandle.getCallingUserId(); 3697 enforceNotManagedProfile(userHandle, "disable keyguard features"); 3698 synchronized (this) { 3699 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 3700 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 3701 if (ap.disabledKeyguardFeatures != which) { 3702 ap.disabledKeyguardFeatures = which; 3703 saveSettingsLocked(userHandle); 3704 } 3705 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 3706 } 3707 } 3708 3709 /** 3710 * Gets the disabled state for features in keyguard for the given admin, 3711 * or the aggregate of all active admins if who is null. 3712 */ 3713 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle) { 3714 if (!mHasFeature) { 3715 return 0; 3716 } 3717 enforceCrossUserPermission(userHandle); 3718 synchronized (this) { 3719 if (who != null) { 3720 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3721 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 3722 } 3723 3724 // Determine which keyguard features are disabled for any active admins. 3725 DevicePolicyData policy = getUserData(userHandle); 3726 final int N = policy.mAdminList.size(); 3727 int which = 0; 3728 for (int i = 0; i < N; i++) { 3729 ActiveAdmin admin = policy.mAdminList.get(i); 3730 which |= admin.disabledKeyguardFeatures; 3731 } 3732 return which; 3733 } 3734 } 3735 3736 @Override 3737 public boolean setDeviceOwner(String packageName, String ownerName) { 3738 if (!mHasFeature) { 3739 return false; 3740 } 3741 if (packageName == null 3742 || !DeviceOwner.isInstalled(packageName, mContext.getPackageManager())) { 3743 throw new IllegalArgumentException("Invalid package name " + packageName 3744 + " for device owner"); 3745 } 3746 synchronized (this) { 3747 if (!allowedToSetDeviceOwnerOnDevice()) { 3748 throw new IllegalStateException( 3749 "Trying to set device owner but device is already provisioned."); 3750 } 3751 3752 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3753 throw new IllegalStateException( 3754 "Trying to set device owner but device owner is already set."); 3755 } 3756 3757 // Shutting down backup manager service permanently. 3758 long ident = Binder.clearCallingIdentity(); 3759 try { 3760 IBackupManager ibm = IBackupManager.Stub.asInterface( 3761 ServiceManager.getService(Context.BACKUP_SERVICE)); 3762 ibm.setBackupServiceActive(UserHandle.USER_OWNER, false); 3763 } catch (RemoteException e) { 3764 throw new IllegalStateException("Failed deactivating backup service.", e); 3765 } finally { 3766 Binder.restoreCallingIdentity(ident); 3767 } 3768 3769 if (mDeviceOwner == null) { 3770 // Device owner is not set and does not exist, set it. 3771 mDeviceOwner = DeviceOwner.createWithDeviceOwner(packageName, ownerName); 3772 mDeviceOwner.writeOwnerFile(); 3773 return true; 3774 } else { 3775 // Device owner is not set but a profile owner exists, update Device owner state. 3776 mDeviceOwner.setDeviceOwner(packageName, ownerName); 3777 mDeviceOwner.writeOwnerFile(); 3778 return true; 3779 } 3780 } 3781 } 3782 3783 @Override 3784 public boolean isDeviceOwner(String packageName) { 3785 if (!mHasFeature) { 3786 return false; 3787 } 3788 synchronized (this) { 3789 return mDeviceOwner != null 3790 && mDeviceOwner.hasDeviceOwner() 3791 && mDeviceOwner.getDeviceOwnerPackageName().equals(packageName); 3792 } 3793 } 3794 3795 @Override 3796 public String getDeviceOwner() { 3797 if (!mHasFeature) { 3798 return null; 3799 } 3800 synchronized (this) { 3801 if (mDeviceOwner != null && mDeviceOwner.hasDeviceOwner()) { 3802 return mDeviceOwner.getDeviceOwnerPackageName(); 3803 } 3804 } 3805 return null; 3806 } 3807 3808 @Override 3809 public String getDeviceOwnerName() { 3810 if (!mHasFeature) { 3811 return null; 3812 } 3813 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3814 synchronized (this) { 3815 if (mDeviceOwner != null) { 3816 return mDeviceOwner.getDeviceOwnerName(); 3817 } 3818 } 3819 return null; 3820 } 3821 3822 // Returns the active device owner or null if there is no device owner. 3823 private ActiveAdmin getDeviceOwnerAdmin() { 3824 String deviceOwnerPackageName = getDeviceOwner(); 3825 if (deviceOwnerPackageName == null) { 3826 return null; 3827 } 3828 3829 DevicePolicyData policy = getUserData(UserHandle.USER_OWNER); 3830 final int n = policy.mAdminList.size(); 3831 for (int i = 0; i < n; i++) { 3832 ActiveAdmin admin = policy.mAdminList.get(i); 3833 if (deviceOwnerPackageName.equals(admin.info.getPackageName())) { 3834 return admin; 3835 } 3836 } 3837 return null; 3838 } 3839 3840 @Override 3841 public void clearDeviceOwner(String packageName) { 3842 Preconditions.checkNotNull(packageName, "packageName is null"); 3843 try { 3844 int uid = mContext.getPackageManager().getPackageUid(packageName, 0); 3845 if (uid != Binder.getCallingUid()) { 3846 throw new SecurityException("Invalid packageName"); 3847 } 3848 } catch (NameNotFoundException e) { 3849 throw new SecurityException(e); 3850 } 3851 if (!isDeviceOwner(packageName)) { 3852 throw new SecurityException("clearDeviceOwner can only be called by the device owner"); 3853 } 3854 synchronized (this) { 3855 long ident = Binder.clearCallingIdentity(); 3856 try { 3857 clearUserRestrictions(new UserHandle(UserHandle.USER_OWNER)); 3858 if (mDeviceOwner != null) { 3859 mDeviceOwner.clearDeviceOwner(); 3860 mDeviceOwner.writeOwnerFile(); 3861 } 3862 } finally { 3863 Binder.restoreCallingIdentity(ident); 3864 } 3865 } 3866 } 3867 3868 @Override 3869 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 3870 if (!mHasFeature) { 3871 return false; 3872 } 3873 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 3874 3875 UserInfo info = mUserManager.getUserInfo(userHandle); 3876 if (info == null) { 3877 // User doesn't exist. 3878 throw new IllegalArgumentException( 3879 "Attempted to set profile owner for invalid userId: " + userHandle); 3880 } 3881 if (info.isGuest()) { 3882 throw new IllegalStateException("Cannot set a profile owner on a guest"); 3883 } 3884 3885 if (who == null 3886 || !DeviceOwner.isInstalledForUser(who.getPackageName(), userHandle)) { 3887 throw new IllegalArgumentException("Component " + who 3888 + " not installed for userId:" + userHandle); 3889 } 3890 synchronized (this) { 3891 // Only SYSTEM_UID can override the userSetupComplete 3892 if (UserHandle.getAppId(Binder.getCallingUid()) != Process.SYSTEM_UID 3893 && hasUserSetupCompleted(userHandle)) { 3894 throw new IllegalStateException( 3895 "Trying to set profile owner but user is already set-up."); 3896 } 3897 3898 if (mDeviceOwner == null) { 3899 // Device owner state does not exist, create it. 3900 mDeviceOwner = DeviceOwner.createWithProfileOwner(who, ownerName, 3901 userHandle); 3902 mDeviceOwner.writeOwnerFile(); 3903 return true; 3904 } else { 3905 // Device owner already exists, update it. 3906 mDeviceOwner.setProfileOwner(who, ownerName, userHandle); 3907 mDeviceOwner.writeOwnerFile(); 3908 return true; 3909 } 3910 } 3911 } 3912 3913 @Override 3914 public void clearProfileOwner(ComponentName who) { 3915 if (!mHasFeature) { 3916 return; 3917 } 3918 UserHandle callingUser = Binder.getCallingUserHandle(); 3919 // Check if this is the profile owner who is calling 3920 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3921 synchronized (this) { 3922 long ident = Binder.clearCallingIdentity(); 3923 try { 3924 clearUserRestrictions(callingUser); 3925 if (mDeviceOwner != null) { 3926 mDeviceOwner.removeProfileOwner(callingUser.getIdentifier()); 3927 mDeviceOwner.writeOwnerFile(); 3928 } 3929 } finally { 3930 Binder.restoreCallingIdentity(ident); 3931 } 3932 } 3933 } 3934 3935 private void clearUserRestrictions(UserHandle userHandle) { 3936 AudioManager audioManager = 3937 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 3938 Bundle userRestrictions = mUserManager.getUserRestrictions(); 3939 mUserManager.setUserRestrictions(new Bundle(), userHandle); 3940 if (userRestrictions.getBoolean(UserManager.DISALLOW_ADJUST_VOLUME)) { 3941 audioManager.adjustMasterVolume(AudioManager.ADJUST_UNMUTE, 0); 3942 } 3943 if (userRestrictions.getBoolean(UserManager.DISALLOW_UNMUTE_MICROPHONE)) { 3944 audioManager.setMicrophoneMute(false); 3945 } 3946 } 3947 3948 @Override 3949 public boolean hasUserSetupCompleted() { 3950 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 3951 } 3952 3953 private boolean hasUserSetupCompleted(int userHandle) { 3954 if (!mHasFeature) { 3955 return true; 3956 } 3957 DevicePolicyData policy = getUserData(userHandle); 3958 // If policy is null, return true, else check if the setup has completed. 3959 return policy == null || policy.mUserSetupComplete; 3960 } 3961 3962 @Override 3963 public void setProfileEnabled(ComponentName who) { 3964 if (!mHasFeature) { 3965 return; 3966 } 3967 Preconditions.checkNotNull(who, "ComponentName is null"); 3968 final int userHandle = UserHandle.getCallingUserId(); 3969 synchronized (this) { 3970 // Check if this is the profile owner who is calling 3971 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3972 int userId = UserHandle.getCallingUserId(); 3973 3974 long id = Binder.clearCallingIdentity(); 3975 try { 3976 mUserManager.setUserEnabled(userId); 3977 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 3978 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userHandle)); 3979 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 3980 Intent.FLAG_RECEIVER_FOREGROUND); 3981 // TODO This should send to parent of profile (which is always owner at the moment). 3982 mContext.sendBroadcastAsUser(intent, UserHandle.OWNER); 3983 } finally { 3984 restoreCallingIdentity(id); 3985 } 3986 } 3987 } 3988 3989 @Override 3990 public void setProfileName(ComponentName who, String profileName) { 3991 Preconditions.checkNotNull(who, "ComponentName is null"); 3992 int userId = UserHandle.getCallingUserId(); 3993 // Check if this is the profile owner (includes device owner). 3994 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3995 3996 long id = Binder.clearCallingIdentity(); 3997 try { 3998 mUserManager.setUserName(userId, profileName); 3999 } finally { 4000 restoreCallingIdentity(id); 4001 } 4002 } 4003 4004 @Override 4005 public ComponentName getProfileOwner(int userHandle) { 4006 if (!mHasFeature) { 4007 return null; 4008 } 4009 4010 synchronized (this) { 4011 if (mDeviceOwner != null) { 4012 return mDeviceOwner.getProfileOwnerComponent(userHandle); 4013 } 4014 } 4015 return null; 4016 } 4017 4018 // Returns the active profile owner for this user or null if the current user has no 4019 // profile owner. 4020 private ActiveAdmin getProfileOwnerAdmin(int userHandle) { 4021 ComponentName profileOwner = 4022 mDeviceOwner != null ? mDeviceOwner.getProfileOwnerComponent(userHandle) : null; 4023 if (profileOwner == null) { 4024 return null; 4025 } 4026 4027 DevicePolicyData policy = getUserData(userHandle); 4028 final int n = policy.mAdminList.size(); 4029 for (int i = 0; i < n; i++) { 4030 ActiveAdmin admin = policy.mAdminList.get(i); 4031 if (profileOwner.equals(admin.info.getComponent())) { 4032 return admin; 4033 } 4034 } 4035 return null; 4036 } 4037 4038 @Override 4039 public String getProfileOwnerName(int userHandle) { 4040 if (!mHasFeature) { 4041 return null; 4042 } 4043 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 4044 4045 synchronized (this) { 4046 if (mDeviceOwner != null) { 4047 return mDeviceOwner.getProfileOwnerName(userHandle); 4048 } 4049 } 4050 return null; 4051 } 4052 4053 /** 4054 * Device owner can only be set on an unprovisioned device. However, if initiated via "adb", 4055 * we also allow it if no accounts or additional users are present on the device. 4056 */ 4057 private boolean allowedToSetDeviceOwnerOnDevice() { 4058 if (!hasUserSetupCompleted(UserHandle.USER_OWNER)) { 4059 return true; 4060 } 4061 4062 int callingId = Binder.getCallingUid(); 4063 return (callingId == Process.SHELL_UID || callingId == Process.ROOT_UID) 4064 && mUserManager.getUserCount() == 1 4065 && AccountManager.get(mContext).getAccounts().length == 0; 4066 } 4067 4068 private void enforceCrossUserPermission(int userHandle) { 4069 if (userHandle < 0) { 4070 throw new IllegalArgumentException("Invalid userId " + userHandle); 4071 } 4072 final int callingUid = Binder.getCallingUid(); 4073 if (userHandle == UserHandle.getUserId(callingUid)) return; 4074 if (callingUid != Process.SYSTEM_UID && callingUid != 0) { 4075 mContext.enforceCallingOrSelfPermission( 4076 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL, "Must be system or have" 4077 + " INTERACT_ACROSS_USERS_FULL permission"); 4078 } 4079 } 4080 4081 private void enforceSystemProcess(String message) { 4082 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4083 throw new SecurityException(message); 4084 } 4085 } 4086 4087 private void enforceNotManagedProfile(int userHandle, String message) { 4088 if(isManagedProfile(userHandle)) { 4089 throw new SecurityException("You can not " + message + " for a managed profile. "); 4090 } 4091 } 4092 4093 private UserInfo getProfileParent(int userHandle) { 4094 long ident = Binder.clearCallingIdentity(); 4095 try { 4096 return mUserManager.getProfileParent(userHandle); 4097 } finally { 4098 Binder.restoreCallingIdentity(ident); 4099 } 4100 } 4101 4102 private boolean isManagedProfile(int userHandle) { 4103 long ident = Binder.clearCallingIdentity(); 4104 try { 4105 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 4106 } finally { 4107 Binder.restoreCallingIdentity(ident); 4108 } 4109 } 4110 4111 private void enableIfNecessary(String packageName, int userId) { 4112 try { 4113 IPackageManager ipm = AppGlobals.getPackageManager(); 4114 ApplicationInfo ai = ipm.getApplicationInfo(packageName, 4115 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 4116 userId); 4117 if (ai.enabledSetting 4118 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 4119 ipm.setApplicationEnabledSetting(packageName, 4120 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 4121 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 4122 } 4123 } catch (RemoteException e) { 4124 } 4125 } 4126 4127 @Override 4128 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 4129 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 4130 != PackageManager.PERMISSION_GRANTED) { 4131 4132 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 4133 + Binder.getCallingPid() 4134 + ", uid=" + Binder.getCallingUid()); 4135 return; 4136 } 4137 4138 final Printer p = new PrintWriterPrinter(pw); 4139 4140 synchronized (this) { 4141 p.println("Current Device Policy Manager state:"); 4142 if (mDeviceOwner != null) { 4143 mDeviceOwner.dump(" ", pw); 4144 } 4145 int userCount = mUserData.size(); 4146 for (int u = 0; u < userCount; u++) { 4147 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 4148 p.println(" Enabled Device Admins (User " + policy.mUserHandle + "):"); 4149 final int N = policy.mAdminList.size(); 4150 for (int i=0; i<N; i++) { 4151 ActiveAdmin ap = policy.mAdminList.get(i); 4152 if (ap != null) { 4153 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 4154 pw.println(":"); 4155 ap.dump(" ", pw); 4156 } 4157 } 4158 if (!policy.mRemovingAdmins.isEmpty()) { 4159 p.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 4160 + policy.mRemovingAdmins); 4161 } 4162 4163 pw.println(" "); 4164 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 4165 } 4166 } 4167 } 4168 4169 @Override 4170 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 4171 ComponentName activity) { 4172 Preconditions.checkNotNull(who, "ComponentName is null"); 4173 final int userHandle = UserHandle.getCallingUserId(); 4174 synchronized (this) { 4175 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4176 4177 IPackageManager pm = AppGlobals.getPackageManager(); 4178 long id = Binder.clearCallingIdentity(); 4179 try { 4180 pm.addPersistentPreferredActivity(filter, activity, userHandle); 4181 } catch (RemoteException re) { 4182 // Shouldn't happen 4183 } finally { 4184 restoreCallingIdentity(id); 4185 } 4186 } 4187 } 4188 4189 @Override 4190 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 4191 Preconditions.checkNotNull(who, "ComponentName is null"); 4192 final int userHandle = UserHandle.getCallingUserId(); 4193 synchronized (this) { 4194 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4195 4196 IPackageManager pm = AppGlobals.getPackageManager(); 4197 long id = Binder.clearCallingIdentity(); 4198 try { 4199 pm.clearPackagePersistentPreferredActivities(packageName, userHandle); 4200 } catch (RemoteException re) { 4201 // Shouldn't happen 4202 } finally { 4203 restoreCallingIdentity(id); 4204 } 4205 } 4206 } 4207 4208 @Override 4209 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 4210 Preconditions.checkNotNull(who, "ComponentName is null"); 4211 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4212 synchronized (this) { 4213 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4214 4215 long id = Binder.clearCallingIdentity(); 4216 try { 4217 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 4218 } finally { 4219 restoreCallingIdentity(id); 4220 } 4221 } 4222 } 4223 4224 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 4225 PersistableBundle args) { 4226 if (!mHasFeature) { 4227 return; 4228 } 4229 Preconditions.checkNotNull(admin, "admin is null"); 4230 Preconditions.checkNotNull(agent, "agent is null"); 4231 final int userHandle = UserHandle.getCallingUserId(); 4232 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 4233 synchronized (this) { 4234 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 4235 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 4236 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 4237 saveSettingsLocked(userHandle); 4238 syncDeviceCapabilitiesLocked(getUserData(userHandle)); 4239 } 4240 } 4241 4242 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 4243 ComponentName agent, int userHandle) { 4244 if (!mHasFeature) { 4245 return null; 4246 } 4247 Preconditions.checkNotNull(agent, "agent null"); 4248 enforceCrossUserPermission(userHandle); 4249 4250 synchronized (this) { 4251 final String componentName = agent.flattenToString(); 4252 if (admin != null) { 4253 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 4254 if (ap == null) return null; 4255 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 4256 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 4257 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 4258 result.add(trustAgentInfo.options); 4259 return result; 4260 } 4261 4262 // Return strictest policy for this user and profiles that are visible from this user. 4263 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 4264 List<PersistableBundle> result = null; 4265 4266 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 4267 // of the options. If any admin doesn't have options, discard options for the rest 4268 // and return null. 4269 boolean allAdminsHaveOptions = true; 4270 for (UserInfo userInfo : profiles) { 4271 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 4272 final int N = policy.mAdminList.size(); 4273 for (int i=0; i < N; i++) { 4274 final ActiveAdmin active = policy.mAdminList.get(i); 4275 final boolean disablesTrust = (active.disabledKeyguardFeatures 4276 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 4277 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 4278 if (info != null && info.options != null && !info.options.isEmpty()) { 4279 if (disablesTrust) { 4280 if (result == null) { 4281 result = new ArrayList<PersistableBundle>(); 4282 } 4283 result.add(info.options); 4284 } else { 4285 Log.w(LOG_TAG, "Ignoring admin " + active.info 4286 + " because it has trust options but doesn't declare " 4287 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 4288 } 4289 } else if (disablesTrust) { 4290 allAdminsHaveOptions = false; 4291 break; 4292 } 4293 } 4294 } 4295 return allAdminsHaveOptions ? result : null; 4296 } 4297 } 4298 4299 @Override 4300 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 4301 Preconditions.checkNotNull(who, "ComponentName is null"); 4302 synchronized (this) { 4303 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4304 4305 int userHandle = UserHandle.getCallingUserId(); 4306 DevicePolicyData userData = getUserData(userHandle); 4307 userData.mRestrictionsProvider = permissionProvider; 4308 saveSettingsLocked(userHandle); 4309 } 4310 } 4311 4312 @Override 4313 public ComponentName getRestrictionsProvider(int userHandle) { 4314 synchronized (this) { 4315 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 4316 throw new SecurityException("Only the system can query the permission provider"); 4317 } 4318 DevicePolicyData userData = getUserData(userHandle); 4319 return userData != null ? userData.mRestrictionsProvider : null; 4320 } 4321 } 4322 4323 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 4324 Preconditions.checkNotNull(who, "ComponentName is null"); 4325 int callingUserId = UserHandle.getCallingUserId(); 4326 synchronized (this) { 4327 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4328 4329 IPackageManager pm = AppGlobals.getPackageManager(); 4330 long id = Binder.clearCallingIdentity(); 4331 try { 4332 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 4333 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), 4334 mContext.getUserId(), callingUserId, UserHandle.USER_OWNER, 0); 4335 } 4336 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 4337 pm.addCrossProfileIntentFilter(filter, who.getPackageName(), 4338 mContext.getUserId(), UserHandle.USER_OWNER, callingUserId, 0); 4339 } 4340 } catch (RemoteException re) { 4341 // Shouldn't happen 4342 } finally { 4343 restoreCallingIdentity(id); 4344 } 4345 } 4346 } 4347 4348 public void clearCrossProfileIntentFilters(ComponentName who) { 4349 Preconditions.checkNotNull(who, "ComponentName is null"); 4350 int callingUserId = UserHandle.getCallingUserId(); 4351 synchronized (this) { 4352 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4353 IPackageManager pm = AppGlobals.getPackageManager(); 4354 long id = Binder.clearCallingIdentity(); 4355 try { 4356 pm.clearCrossProfileIntentFilters(callingUserId, who.getPackageName(), 4357 callingUserId); 4358 // If we want to support multiple managed profiles, we will have to only remove 4359 // those that have callingUserId as their target. 4360 pm.clearCrossProfileIntentFilters(UserHandle.USER_OWNER, who.getPackageName(), 4361 callingUserId); 4362 } catch (RemoteException re) { 4363 // Shouldn't happen 4364 } finally { 4365 restoreCallingIdentity(id); 4366 } 4367 } 4368 } 4369 4370 /** 4371 * @return true if all packages in enabledPackages are either in the list 4372 * permittedList or are a system app. 4373 */ 4374 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 4375 List<String> permittedList) { 4376 int userIdToCheck = UserHandle.getCallingUserId(); 4377 long id = Binder.clearCallingIdentity(); 4378 try { 4379 // If we have an enabled packages list for a managed profile the packages 4380 // we should check are installed for the parent user. 4381 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 4382 if (user.isManagedProfile()) { 4383 userIdToCheck = user.profileGroupId; 4384 } 4385 4386 IPackageManager pm = AppGlobals.getPackageManager(); 4387 for (String enabledPackage : enabledPackages) { 4388 boolean systemService = false; 4389 try { 4390 ApplicationInfo applicationInfo = pm.getApplicationInfo(enabledPackage, 4391 PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 4392 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 4393 } catch (RemoteException e) { 4394 Log.i(LOG_TAG, "Can't talk to package managed", e); 4395 } 4396 if (!systemService && !permittedList.contains(enabledPackage)) { 4397 return false; 4398 } 4399 } 4400 } finally { 4401 restoreCallingIdentity(id); 4402 } 4403 return true; 4404 } 4405 4406 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 4407 // Not using AccessibilityManager.getInstance because that guesses 4408 // at the user you require based on callingUid and caches for a given 4409 // process. 4410 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 4411 IAccessibilityManager service = iBinder == null 4412 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 4413 return new AccessibilityManager(mContext, service, userId); 4414 } 4415 4416 @Override 4417 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 4418 if (!mHasFeature) { 4419 return false; 4420 } 4421 Preconditions.checkNotNull(who, "ComponentName is null"); 4422 4423 if (packageList != null) { 4424 int userId = UserHandle.getCallingUserId(); 4425 List<AccessibilityServiceInfo> enabledServices = null; 4426 long id = Binder.clearCallingIdentity(); 4427 try { 4428 UserInfo user = mUserManager.getUserInfo(userId); 4429 if (user.isManagedProfile()) { 4430 userId = user.profileGroupId; 4431 } 4432 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 4433 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 4434 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 4435 } finally { 4436 restoreCallingIdentity(id); 4437 } 4438 4439 if (enabledServices != null) { 4440 List<String> enabledPackages = new ArrayList<String>(); 4441 for (AccessibilityServiceInfo service : enabledServices) { 4442 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 4443 } 4444 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 4445 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 4446 + "because it contains already enabled accesibility services."); 4447 return false; 4448 } 4449 } 4450 } 4451 4452 synchronized (this) { 4453 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4454 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4455 admin.permittedAccessiblityServices = packageList; 4456 saveSettingsLocked(UserHandle.getCallingUserId()); 4457 } 4458 return true; 4459 } 4460 4461 @Override 4462 public List getPermittedAccessibilityServices(ComponentName who) { 4463 if (!mHasFeature) { 4464 return null; 4465 } 4466 Preconditions.checkNotNull(who, "ComponentName is null"); 4467 4468 synchronized (this) { 4469 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4470 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4471 return admin.permittedAccessiblityServices; 4472 } 4473 } 4474 4475 @Override 4476 public List getPermittedAccessibilityServicesForUser(int userId) { 4477 if (!mHasFeature) { 4478 return null; 4479 } 4480 synchronized (this) { 4481 List<String> result = null; 4482 // If we have multiple profiles we return the intersection of the 4483 // permitted lists. This can happen in cases where we have a device 4484 // and profile owner. 4485 List<UserInfo> profiles = mUserManager.getProfiles(userId); 4486 final int PROFILES_SIZE = profiles.size(); 4487 for (int i = 0; i < PROFILES_SIZE; ++i) { 4488 // Just loop though all admins, only device or profiles 4489 // owners can have permitted lists set. 4490 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 4491 final int N = policy.mAdminList.size(); 4492 for (int j = 0; j < N; j++) { 4493 ActiveAdmin admin = policy.mAdminList.get(j); 4494 List<String> fromAdmin = admin.permittedAccessiblityServices; 4495 if (fromAdmin != null) { 4496 if (result == null) { 4497 result = new ArrayList<String>(fromAdmin); 4498 } else { 4499 result.retainAll(fromAdmin); 4500 } 4501 } 4502 } 4503 } 4504 4505 // If we have a permitted list add all system accessibility services. 4506 if (result != null) { 4507 long id = Binder.clearCallingIdentity(); 4508 try { 4509 UserInfo user = mUserManager.getUserInfo(userId); 4510 if (user.isManagedProfile()) { 4511 userId = user.profileGroupId; 4512 } 4513 AccessibilityManager accessibilityManager = 4514 getAccessibilityManagerForUser(userId); 4515 List<AccessibilityServiceInfo> installedServices = 4516 accessibilityManager.getInstalledAccessibilityServiceList(); 4517 4518 IPackageManager pm = AppGlobals.getPackageManager(); 4519 if (installedServices != null) { 4520 for (AccessibilityServiceInfo service : installedServices) { 4521 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 4522 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 4523 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 4524 result.add(serviceInfo.packageName); 4525 } 4526 } 4527 } 4528 } finally { 4529 restoreCallingIdentity(id); 4530 } 4531 } 4532 4533 return result; 4534 } 4535 } 4536 4537 private boolean checkCallerIsCurrentUserOrProfile() { 4538 int callingUserId = UserHandle.getCallingUserId(); 4539 long token = Binder.clearCallingIdentity(); 4540 try { 4541 UserInfo currentUser; 4542 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 4543 try { 4544 currentUser = ActivityManagerNative.getDefault().getCurrentUser(); 4545 } catch (RemoteException e) { 4546 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 4547 return false; 4548 } 4549 4550 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 4551 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 4552 + "of a user that isn't the foreground user."); 4553 return false; 4554 } 4555 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 4556 Slog.e(LOG_TAG, "Cannot set permitted input methods " 4557 + "of a user that isn't the foreground user."); 4558 return false; 4559 } 4560 } finally { 4561 Binder.restoreCallingIdentity(token); 4562 } 4563 return true; 4564 } 4565 4566 @Override 4567 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 4568 if (!mHasFeature) { 4569 return false; 4570 } 4571 Preconditions.checkNotNull(who, "ComponentName is null"); 4572 4573 // TODO When InputMethodManager supports per user calls remove 4574 // this restriction. 4575 if (!checkCallerIsCurrentUserOrProfile()) { 4576 return false; 4577 } 4578 4579 if (packageList != null) { 4580 // InputMethodManager fetches input methods for current user. 4581 // So this can only be set when calling user is the current user 4582 // or parent is current user in case of managed profiles. 4583 InputMethodManager inputMethodManager = (InputMethodManager) mContext 4584 .getSystemService(Context.INPUT_METHOD_SERVICE); 4585 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 4586 4587 if (enabledImes != null) { 4588 List<String> enabledPackages = new ArrayList<String>(); 4589 for (InputMethodInfo ime : enabledImes) { 4590 enabledPackages.add(ime.getPackageName()); 4591 } 4592 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList)) { 4593 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 4594 + "because it contains already enabled input method."); 4595 return false; 4596 } 4597 } 4598 } 4599 4600 synchronized (this) { 4601 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4602 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4603 admin.permittedInputMethods = packageList; 4604 saveSettingsLocked(UserHandle.getCallingUserId()); 4605 } 4606 return true; 4607 } 4608 4609 @Override 4610 public List getPermittedInputMethods(ComponentName who) { 4611 if (!mHasFeature) { 4612 return null; 4613 } 4614 Preconditions.checkNotNull(who, "ComponentName is null"); 4615 4616 synchronized (this) { 4617 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4618 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4619 return admin.permittedInputMethods; 4620 } 4621 } 4622 4623 @Override 4624 public List getPermittedInputMethodsForCurrentUser() { 4625 UserInfo currentUser; 4626 try { 4627 currentUser = ActivityManagerNative.getDefault().getCurrentUser(); 4628 } catch (RemoteException e) { 4629 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 4630 // Activity managed is dead, just allow all IMEs 4631 return null; 4632 } 4633 4634 int userId = currentUser.id; 4635 synchronized (this) { 4636 List<String> result = null; 4637 // If we have multiple profiles we return the intersection of the 4638 // permitted lists. This can happen in cases where we have a device 4639 // and profile owner. 4640 List<UserInfo> profiles = mUserManager.getProfiles(userId); 4641 final int PROFILES_SIZE = profiles.size(); 4642 for (int i = 0; i < PROFILES_SIZE; ++i) { 4643 // Just loop though all admins, only device or profiles 4644 // owners can have permitted lists set. 4645 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 4646 final int N = policy.mAdminList.size(); 4647 for (int j = 0; j < N; j++) { 4648 ActiveAdmin admin = policy.mAdminList.get(j); 4649 List<String> fromAdmin = admin.permittedInputMethods; 4650 if (fromAdmin != null) { 4651 if (result == null) { 4652 result = new ArrayList<String>(fromAdmin); 4653 } else { 4654 result.retainAll(fromAdmin); 4655 } 4656 } 4657 } 4658 } 4659 4660 // If we have a permitted list add all system input methods. 4661 if (result != null) { 4662 InputMethodManager inputMethodManager = (InputMethodManager) mContext 4663 .getSystemService(Context.INPUT_METHOD_SERVICE); 4664 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 4665 long id = Binder.clearCallingIdentity(); 4666 try { 4667 IPackageManager pm = AppGlobals.getPackageManager(); 4668 if (imes != null) { 4669 for (InputMethodInfo ime : imes) { 4670 ServiceInfo serviceInfo = ime.getServiceInfo(); 4671 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 4672 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 4673 result.add(serviceInfo.packageName); 4674 } 4675 } 4676 } 4677 } finally { 4678 restoreCallingIdentity(id); 4679 } 4680 } 4681 return result; 4682 } 4683 } 4684 4685 @Override 4686 public UserHandle createUser(ComponentName who, String name) { 4687 Preconditions.checkNotNull(who, "ComponentName is null"); 4688 synchronized (this) { 4689 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4690 4691 long id = Binder.clearCallingIdentity(); 4692 try { 4693 UserInfo userInfo = mUserManager.createUser(name, 0 /* flags */); 4694 if (userInfo != null) { 4695 return userInfo.getUserHandle(); 4696 } 4697 return null; 4698 } finally { 4699 restoreCallingIdentity(id); 4700 } 4701 } 4702 } 4703 4704 @Override 4705 public UserHandle createAndInitializeUser(ComponentName who, String name, 4706 String ownerName, ComponentName profileOwnerComponent, Bundle adminExtras) { 4707 UserHandle user = createUser(who, name); 4708 if (user == null) { 4709 return null; 4710 } 4711 long id = Binder.clearCallingIdentity(); 4712 try { 4713 String profileOwnerPkg = profileOwnerComponent.getPackageName(); 4714 final IPackageManager ipm = AppGlobals.getPackageManager(); 4715 IActivityManager activityManager = ActivityManagerNative.getDefault(); 4716 4717 try { 4718 // Install the profile owner if not present. 4719 if (!ipm.isPackageAvailable(profileOwnerPkg, user.getIdentifier())) { 4720 ipm.installExistingPackageAsUser(profileOwnerPkg, user.getIdentifier()); 4721 } 4722 4723 // Start user in background. 4724 activityManager.startUserInBackground(user.getIdentifier()); 4725 } catch (RemoteException e) { 4726 Slog.e(LOG_TAG, "Failed to make remote calls for configureUser", e); 4727 } 4728 4729 setActiveAdmin(profileOwnerComponent, true, user.getIdentifier(), adminExtras); 4730 setProfileOwner(profileOwnerComponent, ownerName, user.getIdentifier()); 4731 return user; 4732 } finally { 4733 restoreCallingIdentity(id); 4734 } 4735 } 4736 4737 @Override 4738 public boolean removeUser(ComponentName who, UserHandle userHandle) { 4739 Preconditions.checkNotNull(who, "ComponentName is null"); 4740 synchronized (this) { 4741 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4742 4743 long id = Binder.clearCallingIdentity(); 4744 try { 4745 return mUserManager.removeUser(userHandle.getIdentifier()); 4746 } finally { 4747 restoreCallingIdentity(id); 4748 } 4749 } 4750 } 4751 4752 @Override 4753 public boolean switchUser(ComponentName who, UserHandle userHandle) { 4754 Preconditions.checkNotNull(who, "ComponentName is null"); 4755 synchronized (this) { 4756 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4757 4758 long id = Binder.clearCallingIdentity(); 4759 try { 4760 int userId = UserHandle.USER_OWNER; 4761 if (userHandle != null) { 4762 userId = userHandle.getIdentifier(); 4763 } 4764 return ActivityManagerNative.getDefault().switchUser(userId); 4765 } catch (RemoteException e) { 4766 Log.e(LOG_TAG, "Couldn't switch user", e); 4767 return false; 4768 } finally { 4769 restoreCallingIdentity(id); 4770 } 4771 } 4772 } 4773 4774 @Override 4775 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 4776 Preconditions.checkNotNull(who, "ComponentName is null"); 4777 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4778 4779 synchronized (this) { 4780 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4781 4782 long id = Binder.clearCallingIdentity(); 4783 try { 4784 return mUserManager.getApplicationRestrictions(packageName, userHandle); 4785 } finally { 4786 restoreCallingIdentity(id); 4787 } 4788 } 4789 } 4790 4791 @Override 4792 public void setUserRestriction(ComponentName who, String key, boolean enabled) { 4793 Preconditions.checkNotNull(who, "ComponentName is null"); 4794 final UserHandle user = new UserHandle(UserHandle.getCallingUserId()); 4795 final int userHandle = user.getIdentifier(); 4796 synchronized (this) { 4797 ActiveAdmin activeAdmin = 4798 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4799 boolean isDeviceOwner = isDeviceOwner(activeAdmin.info.getPackageName()); 4800 if (!isDeviceOwner && userHandle != UserHandle.USER_OWNER 4801 && DEVICE_OWNER_USER_RESTRICTIONS.contains(key)) { 4802 throw new SecurityException("Profile owners cannot set user restriction " + key); 4803 } 4804 boolean alreadyRestricted = mUserManager.hasUserRestriction(key, user); 4805 4806 IAudioService iAudioService = null; 4807 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key) 4808 || UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4809 iAudioService = IAudioService.Stub.asInterface( 4810 ServiceManager.getService(Context.AUDIO_SERVICE)); 4811 } 4812 4813 if (enabled && !alreadyRestricted) { 4814 try { 4815 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 4816 iAudioService.setMicrophoneMute(true, who.getPackageName()); 4817 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4818 iAudioService.adjustMasterVolume(AudioManager.ADJUST_MUTE, 0, 4819 who.getPackageName()); 4820 } 4821 } catch (RemoteException re) { 4822 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 4823 } 4824 } 4825 long id = Binder.clearCallingIdentity(); 4826 try { 4827 if (enabled && !alreadyRestricted) { 4828 if (UserManager.DISALLOW_CONFIG_WIFI.equals(key)) { 4829 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4830 Settings.Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON, 0, 4831 userHandle); 4832 } else if (UserManager.DISALLOW_USB_FILE_TRANSFER.equals(key)) { 4833 UsbManager manager = 4834 (UsbManager) mContext.getSystemService(Context.USB_SERVICE); 4835 manager.setCurrentFunction("none", false); 4836 } else if (UserManager.DISALLOW_SHARE_LOCATION.equals(key)) { 4837 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4838 Settings.Secure.LOCATION_MODE, Settings.Secure.LOCATION_MODE_OFF, 4839 userHandle); 4840 Settings.Secure.putStringForUser(mContext.getContentResolver(), 4841 Settings.Secure.LOCATION_PROVIDERS_ALLOWED, "", 4842 userHandle); 4843 } else if (UserManager.DISALLOW_DEBUGGING_FEATURES.equals(key)) { 4844 // Only disable adb if changing for primary user, since it is global 4845 if (userHandle == UserHandle.USER_OWNER) { 4846 Settings.Global.putStringForUser(mContext.getContentResolver(), 4847 Settings.Global.ADB_ENABLED, "0", userHandle); 4848 } 4849 } else if (UserManager.ENSURE_VERIFY_APPS.equals(key)) { 4850 Settings.Global.putStringForUser(mContext.getContentResolver(), 4851 Settings.Global.PACKAGE_VERIFIER_ENABLE, "1", 4852 userHandle); 4853 Settings.Global.putStringForUser(mContext.getContentResolver(), 4854 Settings.Global.PACKAGE_VERIFIER_INCLUDE_ADB, "1", 4855 userHandle); 4856 } else if (UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES.equals(key)) { 4857 Settings.Secure.putIntForUser(mContext.getContentResolver(), 4858 Settings.Secure.INSTALL_NON_MARKET_APPS, 0, 4859 userHandle); 4860 } 4861 } 4862 mUserManager.setUserRestriction(key, enabled, user); 4863 if (enabled != alreadyRestricted) { 4864 if (UserManager.DISALLOW_SHARE_LOCATION.equals(key)) { 4865 // Send out notifications however as some clients may want to reread the 4866 // value which actually changed due to a restriction having been applied. 4867 final String property = Settings.Secure.SYS_PROP_SETTING_VERSION; 4868 long version = SystemProperties.getLong(property, 0) + 1; 4869 SystemProperties.set(property, Long.toString(version)); 4870 4871 final String name = Settings.Secure.LOCATION_PROVIDERS_ALLOWED; 4872 Uri url = Uri.withAppendedPath(Settings.Secure.CONTENT_URI, name); 4873 mContext.getContentResolver().notifyChange(url, null, true, userHandle); 4874 } 4875 } 4876 } finally { 4877 restoreCallingIdentity(id); 4878 } 4879 if (!enabled && alreadyRestricted) { 4880 try { 4881 if (UserManager.DISALLOW_UNMUTE_MICROPHONE.equals(key)) { 4882 iAudioService.setMicrophoneMute(false, who.getPackageName()); 4883 } else if (UserManager.DISALLOW_ADJUST_VOLUME.equals(key)) { 4884 iAudioService.adjustMasterVolume(AudioManager.ADJUST_UNMUTE, 0, 4885 who.getPackageName()); 4886 } 4887 } catch (RemoteException re) { 4888 Slog.e(LOG_TAG, "Failed to talk to AudioService.", re); 4889 } 4890 } 4891 sendChangedNotification(userHandle); 4892 } 4893 } 4894 4895 @Override 4896 public boolean setApplicationHidden(ComponentName who, String packageName, 4897 boolean hidden) { 4898 Preconditions.checkNotNull(who, "ComponentName is null"); 4899 int callingUserId = UserHandle.getCallingUserId(); 4900 synchronized (this) { 4901 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4902 4903 long id = Binder.clearCallingIdentity(); 4904 try { 4905 IPackageManager pm = AppGlobals.getPackageManager(); 4906 return pm.setApplicationHiddenSettingAsUser(packageName, hidden, callingUserId); 4907 } catch (RemoteException re) { 4908 // shouldn't happen 4909 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 4910 } finally { 4911 restoreCallingIdentity(id); 4912 } 4913 return false; 4914 } 4915 } 4916 4917 @Override 4918 public boolean isApplicationHidden(ComponentName who, String packageName) { 4919 Preconditions.checkNotNull(who, "ComponentName is null"); 4920 int callingUserId = UserHandle.getCallingUserId(); 4921 synchronized (this) { 4922 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4923 4924 long id = Binder.clearCallingIdentity(); 4925 try { 4926 IPackageManager pm = AppGlobals.getPackageManager(); 4927 return pm.getApplicationHiddenSettingAsUser(packageName, callingUserId); 4928 } catch (RemoteException re) { 4929 // shouldn't happen 4930 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 4931 } finally { 4932 restoreCallingIdentity(id); 4933 } 4934 return false; 4935 } 4936 } 4937 4938 @Override 4939 public void enableSystemApp(ComponentName who, String packageName) { 4940 Preconditions.checkNotNull(who, "ComponentName is null"); 4941 synchronized (this) { 4942 // This API can only be called by an active device admin, 4943 // so try to retrieve it to check that the caller is one. 4944 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4945 4946 int userId = UserHandle.getCallingUserId(); 4947 long id = Binder.clearCallingIdentity(); 4948 4949 try { 4950 if (DBG) { 4951 Slog.v(LOG_TAG, "installing " + packageName + " for " 4952 + userId); 4953 } 4954 4955 UserManager um = UserManager.get(mContext); 4956 UserInfo primaryUser = um.getProfileParent(userId); 4957 4958 // Call did not come from a managed profile 4959 if (primaryUser == null) { 4960 primaryUser = um.getUserInfo(userId); 4961 } 4962 4963 IPackageManager pm = AppGlobals.getPackageManager(); 4964 if (!isSystemApp(pm, packageName, primaryUser.id)) { 4965 throw new IllegalArgumentException("Only system apps can be enabled this way."); 4966 } 4967 4968 // Install the app. 4969 pm.installExistingPackageAsUser(packageName, userId); 4970 4971 } catch (RemoteException re) { 4972 // shouldn't happen 4973 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 4974 } finally { 4975 restoreCallingIdentity(id); 4976 } 4977 } 4978 } 4979 4980 @Override 4981 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 4982 Preconditions.checkNotNull(who, "ComponentName is null"); 4983 synchronized (this) { 4984 // This API can only be called by an active device admin, 4985 // so try to retrieve it to check that the caller is one. 4986 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4987 4988 int userId = UserHandle.getCallingUserId(); 4989 long id = Binder.clearCallingIdentity(); 4990 4991 try { 4992 UserManager um = UserManager.get(mContext); 4993 UserInfo primaryUser = um.getProfileParent(userId); 4994 4995 // Call did not come from a managed profile. 4996 if (primaryUser == null) { 4997 primaryUser = um.getUserInfo(userId); 4998 } 4999 5000 IPackageManager pm = AppGlobals.getPackageManager(); 5001 List<ResolveInfo> activitiesToEnable = pm.queryIntentActivities(intent, 5002 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 5003 0, // no flags 5004 primaryUser.id); 5005 5006 if (DBG) Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 5007 int numberOfAppsInstalled = 0; 5008 if (activitiesToEnable != null) { 5009 for (ResolveInfo info : activitiesToEnable) { 5010 if (info.activityInfo != null) { 5011 String packageName = info.activityInfo.packageName; 5012 if (isSystemApp(pm, packageName, primaryUser.id)) { 5013 numberOfAppsInstalled++; 5014 pm.installExistingPackageAsUser(packageName, userId); 5015 } else { 5016 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 5017 + " system app"); 5018 } 5019 } 5020 } 5021 } 5022 return numberOfAppsInstalled; 5023 } catch (RemoteException e) { 5024 // shouldn't happen 5025 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 5026 return 0; 5027 } finally { 5028 restoreCallingIdentity(id); 5029 } 5030 } 5031 } 5032 5033 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 5034 throws RemoteException { 5035 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 5036 userId); 5037 if (appInfo == null) { 5038 throw new IllegalArgumentException("The application " + packageName + 5039 " is not present on this device"); 5040 } 5041 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 5042 } 5043 5044 @Override 5045 public void setAccountManagementDisabled(ComponentName who, String accountType, 5046 boolean disabled) { 5047 if (!mHasFeature) { 5048 return; 5049 } 5050 Preconditions.checkNotNull(who, "ComponentName is null"); 5051 synchronized (this) { 5052 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5053 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5054 if (disabled) { 5055 ap.accountTypesWithManagementDisabled.add(accountType); 5056 } else { 5057 ap.accountTypesWithManagementDisabled.remove(accountType); 5058 } 5059 saveSettingsLocked(UserHandle.getCallingUserId()); 5060 } 5061 } 5062 5063 @Override 5064 public String[] getAccountTypesWithManagementDisabled() { 5065 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 5066 } 5067 5068 @Override 5069 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 5070 enforceCrossUserPermission(userId); 5071 if (!mHasFeature) { 5072 return null; 5073 } 5074 synchronized (this) { 5075 DevicePolicyData policy = getUserData(userId); 5076 final int N = policy.mAdminList.size(); 5077 HashSet<String> resultSet = new HashSet<String>(); 5078 for (int i = 0; i < N; i++) { 5079 ActiveAdmin admin = policy.mAdminList.get(i); 5080 resultSet.addAll(admin.accountTypesWithManagementDisabled); 5081 } 5082 return resultSet.toArray(new String[resultSet.size()]); 5083 } 5084 } 5085 5086 @Override 5087 public void setUninstallBlocked(ComponentName who, String packageName, 5088 boolean uninstallBlocked) { 5089 Preconditions.checkNotNull(who, "ComponentName is null"); 5090 final int userId = UserHandle.getCallingUserId(); 5091 synchronized (this) { 5092 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5093 5094 long id = Binder.clearCallingIdentity(); 5095 try { 5096 IPackageManager pm = AppGlobals.getPackageManager(); 5097 pm.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 5098 } catch (RemoteException re) { 5099 // Shouldn't happen. 5100 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 5101 } finally { 5102 restoreCallingIdentity(id); 5103 } 5104 } 5105 } 5106 5107 @Override 5108 public boolean isUninstallBlocked(ComponentName who, String packageName) { 5109 // This function should return true if and only if the package is blocked by 5110 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 5111 // when the package is a system app, or when it is an active device admin. 5112 final int userId = UserHandle.getCallingUserId(); 5113 5114 synchronized (this) { 5115 if (who != null) { 5116 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5117 } 5118 5119 long id = Binder.clearCallingIdentity(); 5120 try { 5121 IPackageManager pm = AppGlobals.getPackageManager(); 5122 return pm.getBlockUninstallForUser(packageName, userId); 5123 } catch (RemoteException re) { 5124 // Shouldn't happen. 5125 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 5126 } finally { 5127 restoreCallingIdentity(id); 5128 } 5129 } 5130 return false; 5131 } 5132 5133 @Override 5134 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 5135 if (!mHasFeature) { 5136 return; 5137 } 5138 Preconditions.checkNotNull(who, "ComponentName is null"); 5139 synchronized (this) { 5140 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5141 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5142 if (admin.disableCallerId != disabled) { 5143 admin.disableCallerId = disabled; 5144 saveSettingsLocked(UserHandle.getCallingUserId()); 5145 } 5146 } 5147 } 5148 5149 @Override 5150 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 5151 if (!mHasFeature) { 5152 return false; 5153 } 5154 Preconditions.checkNotNull(who, "ComponentName is null"); 5155 synchronized (this) { 5156 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5157 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5158 return admin.disableCallerId; 5159 } 5160 } 5161 5162 @Override 5163 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 5164 // TODO: Should there be a check to make sure this relationship is within a profile group? 5165 //enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 5166 synchronized (this) { 5167 ActiveAdmin admin = getProfileOwnerAdmin(userId); 5168 return (admin != null) ? admin.disableCallerId : false; 5169 } 5170 } 5171 5172 /** 5173 * Sets which packages may enter lock task mode. 5174 * 5175 * This function can only be called by the device owner. 5176 * @param packages The list of packages allowed to enter lock task mode. 5177 */ 5178 public void setLockTaskPackages(ComponentName who, String[] packages) throws SecurityException { 5179 Preconditions.checkNotNull(who, "ComponentName is null"); 5180 synchronized (this) { 5181 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5182 5183 int userHandle = Binder.getCallingUserHandle().getIdentifier(); 5184 DevicePolicyData policy = getUserData(userHandle); 5185 policy.mLockTaskPackages.clear(); 5186 if (packages != null) { 5187 for (int j = 0; j < packages.length; j++) { 5188 String pkg = packages[j]; 5189 policy.mLockTaskPackages.add(pkg); 5190 } 5191 } 5192 5193 // Store the settings persistently. 5194 saveSettingsLocked(userHandle); 5195 } 5196 } 5197 5198 /** 5199 * This function returns the list of components allowed to start the task lock mode. 5200 */ 5201 public String[] getLockTaskPackages(ComponentName who) { 5202 Preconditions.checkNotNull(who, "ComponentName is null"); 5203 synchronized (this) { 5204 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5205 5206 int userHandle = Binder.getCallingUserHandle().getIdentifier(); 5207 DevicePolicyData policy = getUserData(userHandle); 5208 return policy.mLockTaskPackages.toArray(new String[policy.mLockTaskPackages.size()]); 5209 } 5210 } 5211 5212 /** 5213 * This function lets the caller know whether the given package is allowed to start the 5214 * lock task mode. 5215 * @param pkg The package to check 5216 */ 5217 public boolean isLockTaskPermitted(String pkg) { 5218 // Get current user's devicepolicy 5219 int uid = Binder.getCallingUid(); 5220 int userHandle = UserHandle.getUserId(uid); 5221 DevicePolicyData policy = getUserData(userHandle); 5222 synchronized (this) { 5223 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 5224 String lockTaskPackage = policy.mLockTaskPackages.get(i); 5225 5226 // If the given package equals one of the packages stored our list, 5227 // we allow this package to start lock task mode. 5228 if (lockTaskPackage.equals(pkg)) { 5229 return true; 5230 } 5231 } 5232 } 5233 return false; 5234 } 5235 5236 @Override 5237 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 5238 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 5239 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 5240 } 5241 synchronized (this) { 5242 final DevicePolicyData policy = getUserData(userHandle); 5243 Bundle adminExtras = new Bundle(); 5244 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 5245 for (ActiveAdmin admin : policy.mAdminList) { 5246 boolean ownsDevice = isDeviceOwner(admin.info.getPackageName()); 5247 boolean ownsProfile = (getProfileOwner(userHandle) != null 5248 && getProfileOwner(userHandle).equals(admin.info.getPackageName())); 5249 if (ownsDevice || ownsProfile) { 5250 if (isEnabled) { 5251 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 5252 adminExtras, null); 5253 } else { 5254 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 5255 } 5256 } 5257 } 5258 } 5259 } 5260 5261 @Override 5262 public void setGlobalSetting(ComponentName who, String setting, String value) { 5263 final ContentResolver contentResolver = mContext.getContentResolver(); 5264 Preconditions.checkNotNull(who, "ComponentName is null"); 5265 5266 synchronized (this) { 5267 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5268 5269 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 5270 // BLUETOOTH_ON and WIFI_ON used to be supported but not any more. We do not want to 5271 // throw a SecurityException not to break apps. 5272 if (!Settings.Global.BLUETOOTH_ON.equals(setting) 5273 && !Settings.Global.WIFI_ON.equals(setting)) { 5274 throw new SecurityException(String.format( 5275 "Permission denial: device owners cannot update %1$s", setting)); 5276 } 5277 } 5278 5279 long id = Binder.clearCallingIdentity(); 5280 try { 5281 Settings.Global.putString(contentResolver, setting, value); 5282 } finally { 5283 restoreCallingIdentity(id); 5284 } 5285 } 5286 } 5287 5288 @Override 5289 public void setSecureSetting(ComponentName who, String setting, String value) { 5290 Preconditions.checkNotNull(who, "ComponentName is null"); 5291 int callingUserId = UserHandle.getCallingUserId(); 5292 final ContentResolver contentResolver = mContext.getContentResolver(); 5293 5294 synchronized (this) { 5295 ActiveAdmin activeAdmin = 5296 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5297 5298 if (isDeviceOwner(activeAdmin.info.getPackageName())) { 5299 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 5300 throw new SecurityException(String.format( 5301 "Permission denial: Device owners cannot update %1$s", setting)); 5302 } 5303 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 5304 throw new SecurityException(String.format( 5305 "Permission denial: Profile owners cannot update %1$s", setting)); 5306 } 5307 5308 long id = Binder.clearCallingIdentity(); 5309 try { 5310 Settings.Secure.putStringForUser(contentResolver, setting, value, callingUserId); 5311 } finally { 5312 restoreCallingIdentity(id); 5313 } 5314 } 5315 } 5316 5317 @Override 5318 public void setMasterVolumeMuted(ComponentName who, boolean on) { 5319 Preconditions.checkNotNull(who, "ComponentName is null"); 5320 synchronized (this) { 5321 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5322 5323 IAudioService iAudioService = IAudioService.Stub.asInterface( 5324 ServiceManager.getService(Context.AUDIO_SERVICE)); 5325 try{ 5326 iAudioService.adjustMasterVolume( 5327 on ? AudioManager.ADJUST_MUTE : AudioManager.ADJUST_UNMUTE, 0, 5328 who.getPackageName()); 5329 } catch (RemoteException re) { 5330 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 5331 } 5332 } 5333 } 5334 5335 @Override 5336 public boolean isMasterVolumeMuted(ComponentName who) { 5337 Preconditions.checkNotNull(who, "ComponentName is null"); 5338 synchronized (this) { 5339 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5340 5341 AudioManager audioManager = 5342 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 5343 return audioManager.isMasterMute(); 5344 } 5345 } 5346 5347 /** 5348 * We need to update the internal state of whether a user has completed setup once. After 5349 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 5350 * as we don't trust any apps that might try to reset it. 5351 * <p> 5352 * Unfortunately, we don't know which user's setup state was changed, so we write all of 5353 * them. 5354 */ 5355 void updateUserSetupComplete() { 5356 List<UserInfo> users = mUserManager.getUsers(true); 5357 ContentResolver resolver = mContext.getContentResolver(); 5358 final int N = users.size(); 5359 for (int i = 0; i < N; i++) { 5360 int userHandle = users.get(i).id; 5361 if (Settings.Secure.getIntForUser(resolver, Settings.Secure.USER_SETUP_COMPLETE, 0, 5362 userHandle) != 0) { 5363 DevicePolicyData policy = getUserData(userHandle); 5364 if (!policy.mUserSetupComplete) { 5365 policy.mUserSetupComplete = true; 5366 synchronized (this) { 5367 saveSettingsLocked(userHandle); 5368 } 5369 } 5370 } 5371 } 5372 } 5373 5374 private class SetupContentObserver extends ContentObserver { 5375 5376 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 5377 Settings.Secure.USER_SETUP_COMPLETE); 5378 5379 public SetupContentObserver(Handler handler) { 5380 super(handler); 5381 } 5382 5383 void register(ContentResolver resolver) { 5384 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 5385 } 5386 5387 @Override 5388 public void onChange(boolean selfChange, Uri uri) { 5389 if (mUserSetupComplete.equals(uri)) { 5390 updateUserSetupComplete(); 5391 } 5392 } 5393 } 5394 5395 private final class LocalService extends DevicePolicyManagerInternal { 5396 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 5397 5398 @Override 5399 public List<String> getCrossProfileWidgetProviders(int profileId) { 5400 synchronized (DevicePolicyManagerService.this) { 5401 if (mDeviceOwner == null) { 5402 return Collections.emptyList(); 5403 } 5404 ComponentName ownerComponent = mDeviceOwner.getProfileOwnerComponent(profileId); 5405 if (ownerComponent == null) { 5406 return Collections.emptyList(); 5407 } 5408 5409 DevicePolicyData policy = getUserDataUnchecked(profileId); 5410 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 5411 5412 if (admin == null || admin.crossProfileWidgetProviders == null 5413 || admin.crossProfileWidgetProviders.isEmpty()) { 5414 return Collections.emptyList(); 5415 } 5416 5417 return admin.crossProfileWidgetProviders; 5418 } 5419 } 5420 5421 @Override 5422 public void addOnCrossProfileWidgetProvidersChangeListener( 5423 OnCrossProfileWidgetProvidersChangeListener listener) { 5424 synchronized (DevicePolicyManagerService.this) { 5425 if (mWidgetProviderListeners == null) { 5426 mWidgetProviderListeners = new ArrayList<>(); 5427 } 5428 if (!mWidgetProviderListeners.contains(listener)) { 5429 mWidgetProviderListeners.add(listener); 5430 } 5431 } 5432 } 5433 5434 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 5435 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 5436 synchronized (DevicePolicyManagerService.this) { 5437 listeners = new ArrayList<>(mWidgetProviderListeners); 5438 } 5439 final int listenerCount = listeners.size(); 5440 for (int i = 0; i < listenerCount; i++) { 5441 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 5442 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 5443 } 5444 } 5445 } 5446} 5447