WifiInjector.java revision 4eef41ced6143fe7228cf1f06f8a1f45aa8a2b1f
1/* 2 * Copyright (C) 2016 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.wifi; 18 19import android.app.ActivityManager; 20import android.content.Context; 21import android.net.NetworkKey; 22import android.net.NetworkScoreManager; 23import android.net.wifi.IApInterface; 24import android.net.wifi.IWifiScanner; 25import android.net.wifi.IWificond; 26import android.net.wifi.WifiConfiguration; 27import android.net.wifi.WifiInfo; 28import android.net.wifi.WifiNetworkScoreCache; 29import android.net.wifi.WifiScanner; 30import android.os.BatteryStats; 31import android.os.HandlerThread; 32import android.os.IBinder; 33import android.os.INetworkManagementService; 34import android.os.Looper; 35import android.os.ServiceManager; 36import android.os.SystemProperties; 37import android.os.UserManager; 38import android.security.KeyStore; 39import android.telephony.TelephonyManager; 40import android.util.LocalLog; 41 42import com.android.internal.R; 43import com.android.internal.app.IBatteryStats; 44import com.android.server.am.BatteryStatsService; 45import com.android.server.net.DelayedDiskWrite; 46import com.android.server.net.IpConfigStore; 47import com.android.server.wifi.aware.WifiAwareMetrics; 48import com.android.server.wifi.hotspot2.LegacyPasspointConfigParser; 49import com.android.server.wifi.hotspot2.PasspointManager; 50import com.android.server.wifi.hotspot2.PasspointNetworkEvaluator; 51import com.android.server.wifi.hotspot2.PasspointObjectFactory; 52import com.android.server.wifi.p2p.SupplicantP2pIfaceHal; 53import com.android.server.wifi.p2p.WifiP2pMonitor; 54import com.android.server.wifi.p2p.WifiP2pNative; 55import com.android.server.wifi.util.WifiPermissionsUtil; 56import com.android.server.wifi.util.WifiPermissionsWrapper; 57 58/** 59 * WiFi dependency injector. To be used for accessing various WiFi class instances and as a 60 * handle for mock injection. 61 * 62 * Some WiFi class instances currently depend on having a Looper from a HandlerThread that has 63 * been started. To accommodate this, we have a two-phased approach to initialize and retrieve 64 * an instance of the WifiInjector. 65 */ 66public class WifiInjector { 67 private static final String BOOT_DEFAULT_WIFI_COUNTRY_CODE = "ro.boot.wificountrycode"; 68 private static final String WIFICOND_SERVICE_NAME = "wificond"; 69 70 static WifiInjector sWifiInjector = null; 71 72 private final Context mContext; 73 private final FrameworkFacade mFrameworkFacade = new FrameworkFacade(); 74 private final HandlerThread mWifiServiceHandlerThread; 75 private final HandlerThread mWifiStateMachineHandlerThread; 76 private final WifiTrafficPoller mTrafficPoller; 77 private final WifiCountryCode mCountryCode; 78 private final BackupManagerProxy mBackupManagerProxy = new BackupManagerProxy(); 79 private final WifiApConfigStore mWifiApConfigStore; 80 private final WifiNative mWifiNative; 81 private final WifiMonitor mWifiMonitor; 82 private final WifiP2pNative mWifiP2pNative; 83 private final WifiP2pMonitor mWifiP2pMonitor; 84 private final SupplicantStaIfaceHal mSupplicantStaIfaceHal; 85 private final SupplicantP2pIfaceHal mSupplicantP2pIfaceHal; 86 private final WifiVendorHal mWifiVendorHal; 87 private final WifiStateMachine mWifiStateMachine; 88 private final WifiSettingsStore mSettingsStore; 89 private final WifiCertManager mCertManager; 90 private final WifiNotificationController mNotificationController; 91 private final WifiLockManager mLockManager; 92 private final WifiController mWifiController; 93 private final WificondControl mWificondControl; 94 private final Clock mClock = new Clock(); 95 private final WifiMetrics mWifiMetrics; 96 private final WifiLastResortWatchdog mWifiLastResortWatchdog; 97 private final PropertyService mPropertyService = new SystemPropertyService(); 98 private final BuildProperties mBuildProperties = new SystemBuildProperties(); 99 private final KeyStore mKeyStore = KeyStore.getInstance(); 100 private final WifiBackupRestore mWifiBackupRestore; 101 private final WifiMulticastLockManager mWifiMulticastLockManager; 102 private final WifiConfigStore mWifiConfigStore; 103 private final WifiKeyStore mWifiKeyStore; 104 private final WifiNetworkHistory mWifiNetworkHistory; 105 private final IpConfigStore mIpConfigStore; 106 private final WifiConfigStoreLegacy mWifiConfigStoreLegacy; 107 private final WifiConfigManager mWifiConfigManager; 108 private final WifiConnectivityHelper mWifiConnectivityHelper; 109 private final LocalLog mConnectivityLocalLog; 110 private final WifiNetworkSelector mWifiNetworkSelector; 111 private final SavedNetworkEvaluator mSavedNetworkEvaluator; 112 private final PasspointNetworkEvaluator mPasspointNetworkEvaluator; 113 private final ScoredNetworkEvaluator mScoredNetworkEvaluator; 114 private final WifiNetworkScoreCache mWifiNetworkScoreCache; 115 private final NetworkScoreManager mNetworkScoreManager; 116 private WifiScanner mWifiScanner; 117 private final WifiPermissionsWrapper mWifiPermissionsWrapper; 118 private final WifiPermissionsUtil mWifiPermissionsUtil; 119 private final PasspointManager mPasspointManager; 120 private final SIMAccessor mSimAccessor; 121 private HandlerThread mWifiAwareHandlerThread; 122 private HalDeviceManager mHalDeviceManager; 123 private final IBatteryStats mBatteryStats; 124 private final WifiStateTracker mWifiStateTracker; 125 private final Runtime mJavaRuntime; 126 private final SelfRecovery mSelfRecovery; 127 128 private final boolean mUseRealLogger; 129 130 public WifiInjector(Context context) { 131 if (context == null) { 132 throw new IllegalStateException( 133 "WifiInjector should not be initialized with a null Context."); 134 } 135 136 if (sWifiInjector != null) { 137 throw new IllegalStateException( 138 "WifiInjector was already created, use getInstance instead."); 139 } 140 141 sWifiInjector = this; 142 143 mContext = context; 144 mUseRealLogger = mContext.getResources().getBoolean( 145 R.bool.config_wifi_enable_wifi_firmware_debugging); 146 mSettingsStore = new WifiSettingsStore(mContext); 147 mWifiPermissionsWrapper = new WifiPermissionsWrapper(mContext); 148 mNetworkScoreManager = mContext.getSystemService(NetworkScoreManager.class); 149 mWifiNetworkScoreCache = new WifiNetworkScoreCache(mContext); 150 mNetworkScoreManager.registerNetworkScoreCache(NetworkKey.TYPE_WIFI, 151 mWifiNetworkScoreCache, NetworkScoreManager.CACHE_FILTER_NONE); 152 mWifiPermissionsUtil = new WifiPermissionsUtil(mWifiPermissionsWrapper, mContext, 153 mSettingsStore, UserManager.get(mContext), mNetworkScoreManager, this); 154 mWifiBackupRestore = new WifiBackupRestore(mWifiPermissionsUtil); 155 mBatteryStats = IBatteryStats.Stub.asInterface(mFrameworkFacade.getService( 156 BatteryStats.SERVICE_NAME)); 157 mWifiStateTracker = new WifiStateTracker(mBatteryStats); 158 // Now create and start handler threads 159 mWifiServiceHandlerThread = new HandlerThread("WifiService"); 160 mWifiServiceHandlerThread.start(); 161 mWifiStateMachineHandlerThread = new HandlerThread("WifiStateMachine"); 162 mWifiStateMachineHandlerThread.start(); 163 Looper wifiStateMachineLooper = mWifiStateMachineHandlerThread.getLooper(); 164 WifiAwareMetrics awareMetrics = new WifiAwareMetrics(mClock); 165 mWifiMetrics = new WifiMetrics(mClock, wifiStateMachineLooper, awareMetrics); 166 // Modules interacting with Native. 167 mWifiMonitor = new WifiMonitor(this); 168 mHalDeviceManager = new HalDeviceManager(); 169 mWifiVendorHal = 170 new WifiVendorHal(mHalDeviceManager, mWifiStateMachineHandlerThread.getLooper()); 171 mSupplicantStaIfaceHal = new SupplicantStaIfaceHal(mContext, mWifiMonitor); 172 mWificondControl = new WificondControl(this, mWifiMonitor, 173 new CarrierNetworkConfig(mContext)); 174 mWifiNative = new WifiNative(SystemProperties.get("wifi.interface", "wlan0"), 175 mWifiVendorHal, mSupplicantStaIfaceHal, mWificondControl); 176 mWifiP2pMonitor = new WifiP2pMonitor(this); 177 mSupplicantP2pIfaceHal = new SupplicantP2pIfaceHal(mWifiP2pMonitor); 178 mWifiP2pNative = new WifiP2pNative(SystemProperties.get("wifi.direct.interface", "p2p0"), 179 mSupplicantP2pIfaceHal); 180 181 // Now get instances of all the objects that depend on the HandlerThreads 182 mTrafficPoller = new WifiTrafficPoller(mContext, mWifiServiceHandlerThread.getLooper(), 183 mWifiNative.getInterfaceName()); 184 mCountryCode = new WifiCountryCode(mWifiNative, 185 SystemProperties.get(BOOT_DEFAULT_WIFI_COUNTRY_CODE), 186 mContext.getResources() 187 .getBoolean(R.bool.config_wifi_revert_country_code_on_cellular_loss)); 188 mWifiApConfigStore = new WifiApConfigStore(mContext, mBackupManagerProxy); 189 190 // WifiConfigManager/Store objects and their dependencies. 191 // New config store 192 mWifiKeyStore = new WifiKeyStore(mKeyStore); 193 mWifiConfigStore = new WifiConfigStore( 194 mContext, wifiStateMachineLooper, mClock, 195 WifiConfigStore.createSharedFile()); 196 // Legacy config store 197 DelayedDiskWrite writer = new DelayedDiskWrite(); 198 mWifiNetworkHistory = new WifiNetworkHistory(mContext, writer); 199 mIpConfigStore = new IpConfigStore(writer); 200 mWifiConfigStoreLegacy = new WifiConfigStoreLegacy( 201 mWifiNetworkHistory, mWifiNative, mIpConfigStore, 202 new LegacyPasspointConfigParser()); 203 // Config Manager 204 mWifiConfigManager = new WifiConfigManager(mContext, mClock, 205 UserManager.get(mContext), TelephonyManager.from(mContext), 206 mWifiKeyStore, mWifiConfigStore, mWifiConfigStoreLegacy, mWifiPermissionsUtil, 207 mWifiPermissionsWrapper, new NetworkListStoreData(), 208 new DeletedEphemeralSsidsStoreData()); 209 mWifiConnectivityHelper = new WifiConnectivityHelper(mWifiNative); 210 mConnectivityLocalLog = new LocalLog(ActivityManager.isLowRamDeviceStatic() ? 256 : 512); 211 mWifiNetworkSelector = new WifiNetworkSelector(mContext, mWifiConfigManager, mClock, 212 mConnectivityLocalLog); 213 mSavedNetworkEvaluator = new SavedNetworkEvaluator(mContext, 214 mWifiConfigManager, mClock, mConnectivityLocalLog, mWifiConnectivityHelper); 215 mScoredNetworkEvaluator = new ScoredNetworkEvaluator(context, wifiStateMachineLooper, 216 mFrameworkFacade, mNetworkScoreManager, mWifiConfigManager, mConnectivityLocalLog, 217 mWifiNetworkScoreCache); 218 mSimAccessor = new SIMAccessor(mContext); 219 mPasspointManager = new PasspointManager(mContext, mWifiNative, mWifiKeyStore, mClock, 220 mSimAccessor, new PasspointObjectFactory(), mWifiConfigManager, mWifiConfigStore, 221 mWifiMetrics); 222 mPasspointNetworkEvaluator = new PasspointNetworkEvaluator( 223 mPasspointManager, mWifiConfigManager, mConnectivityLocalLog); 224 // mWifiStateMachine has an implicit dependency on mJavaRuntime due to WifiDiagnostics. 225 mJavaRuntime = Runtime.getRuntime(); 226 mWifiStateMachine = new WifiStateMachine(mContext, mFrameworkFacade, 227 wifiStateMachineLooper, UserManager.get(mContext), 228 this, mBackupManagerProxy, mCountryCode, mWifiNative, 229 new WrongPasswordNotifier(mContext, mFrameworkFacade)); 230 mCertManager = new WifiCertManager(mContext); 231 mNotificationController = new WifiNotificationController(mContext, 232 mWifiStateMachineHandlerThread.getLooper(), mFrameworkFacade, null); 233 mLockManager = new WifiLockManager(mContext, BatteryStatsService.getService()); 234 mWifiController = new WifiController(mContext, mWifiStateMachine, mSettingsStore, 235 mLockManager, mWifiServiceHandlerThread.getLooper(), mFrameworkFacade); 236 mSelfRecovery = new SelfRecovery(mWifiController, mClock); 237 mWifiLastResortWatchdog = new WifiLastResortWatchdog(mSelfRecovery, mWifiMetrics); 238 mWifiMulticastLockManager = new WifiMulticastLockManager(mWifiStateMachine, 239 BatteryStatsService.getService()); 240 } 241 242 /** 243 * Obtain an instance of the WifiInjector class. 244 * 245 * This is the generic method to get an instance of the class. The first instance should be 246 * retrieved using the getInstanceWithContext method. 247 */ 248 public static WifiInjector getInstance() { 249 if (sWifiInjector == null) { 250 throw new IllegalStateException( 251 "Attempted to retrieve a WifiInjector instance before constructor was called."); 252 } 253 return sWifiInjector; 254 } 255 256 public UserManager getUserManager() { 257 return UserManager.get(mContext); 258 } 259 260 public WifiMetrics getWifiMetrics() { 261 return mWifiMetrics; 262 } 263 264 public SupplicantStaIfaceHal getSupplicantStaIfaceHal() { 265 return mSupplicantStaIfaceHal; 266 } 267 268 public BackupManagerProxy getBackupManagerProxy() { 269 return mBackupManagerProxy; 270 } 271 272 public FrameworkFacade getFrameworkFacade() { 273 return mFrameworkFacade; 274 } 275 276 public HandlerThread getWifiServiceHandlerThread() { 277 return mWifiServiceHandlerThread; 278 } 279 280 public HandlerThread getWifiStateMachineHandlerThread() { 281 return mWifiStateMachineHandlerThread; 282 } 283 284 public WifiTrafficPoller getWifiTrafficPoller() { 285 return mTrafficPoller; 286 } 287 288 public WifiCountryCode getWifiCountryCode() { 289 return mCountryCode; 290 } 291 292 public WifiApConfigStore getWifiApConfigStore() { 293 return mWifiApConfigStore; 294 } 295 296 public WifiStateMachine getWifiStateMachine() { 297 return mWifiStateMachine; 298 } 299 300 public WifiSettingsStore getWifiSettingsStore() { 301 return mSettingsStore; 302 } 303 304 public WifiCertManager getWifiCertManager() { 305 return mCertManager; 306 } 307 308 public WifiLockManager getWifiLockManager() { 309 return mLockManager; 310 } 311 312 public WifiController getWifiController() { 313 return mWifiController; 314 } 315 316 public WifiLastResortWatchdog getWifiLastResortWatchdog() { 317 return mWifiLastResortWatchdog; 318 } 319 320 public Clock getClock() { 321 return mClock; 322 } 323 324 public PropertyService getPropertyService() { 325 return mPropertyService; 326 } 327 328 public BuildProperties getBuildProperties() { 329 return mBuildProperties; 330 } 331 332 public KeyStore getKeyStore() { 333 return mKeyStore; 334 } 335 336 public WifiBackupRestore getWifiBackupRestore() { 337 return mWifiBackupRestore; 338 } 339 340 public WifiMulticastLockManager getWifiMulticastLockManager() { 341 return mWifiMulticastLockManager; 342 } 343 344 public WifiConfigManager getWifiConfigManager() { 345 return mWifiConfigManager; 346 } 347 348 public PasspointManager getPasspointManager() { 349 return mPasspointManager; 350 } 351 352 public TelephonyManager makeTelephonyManager() { 353 // may not be available when WiFi starts 354 return (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 355 } 356 357 public WifiStateTracker getWifiStateTracker() { 358 return mWifiStateTracker; 359 } 360 361 public IWificond makeWificond() { 362 // We depend on being able to refresh our binder in WifiStateMachine, so don't cache it. 363 IBinder binder = ServiceManager.getService(WIFICOND_SERVICE_NAME); 364 return IWificond.Stub.asInterface(binder); 365 } 366 367 /** 368 * Create a SoftApManager. 369 * @param nmService NetworkManagementService allowing SoftApManager to listen for interface 370 * changes 371 * @param listener listener for SoftApManager 372 * @param apInterface network interface to start hostapd against 373 * @param config softAp WifiConfiguration 374 * @return an instance of SoftApManager 375 */ 376 public SoftApManager makeSoftApManager(INetworkManagementService nmService, 377 SoftApManager.Listener listener, 378 IApInterface apInterface, 379 WifiConfiguration config) { 380 return new SoftApManager(mWifiServiceHandlerThread.getLooper(), 381 mWifiNative, mCountryCode.getCountryCode(), 382 listener, apInterface, nmService, 383 mWifiApConfigStore, config, mWifiMetrics); 384 } 385 386 /** 387 * Create a WifiLog instance. 388 * @param tag module name to include in all log messages 389 */ 390 public WifiLog makeLog(String tag) { 391 return new LogcatLog(tag); 392 } 393 394 public BaseWifiDiagnostics makeWifiDiagnostics(WifiNative wifiNative) { 395 if (mUseRealLogger) { 396 return new WifiDiagnostics( 397 mContext, this, mWifiStateMachine, wifiNative, mBuildProperties, 398 new LastMileLogger(this)); 399 } else { 400 return new BaseWifiDiagnostics(wifiNative); 401 } 402 } 403 404 /** 405 * Obtain an instance of WifiScanner. 406 * If it was not already created, then obtain an instance. Note, this must be done lazily since 407 * WifiScannerService is separate and created later. 408 */ 409 public synchronized WifiScanner getWifiScanner() { 410 if (mWifiScanner == null) { 411 mWifiScanner = new WifiScanner(mContext, 412 IWifiScanner.Stub.asInterface(ServiceManager.getService( 413 Context.WIFI_SCANNING_SERVICE)), 414 mWifiStateMachineHandlerThread.getLooper()); 415 } 416 return mWifiScanner; 417 } 418 419 /** 420 * Obtain a new instance of WifiConnectivityManager. 421 * 422 * Create and return a new WifiConnectivityManager. 423 * @param wifiInfo WifiInfo object for updating wifi state. 424 * @param hasConnectionRequests boolean indicating if WifiConnectivityManager to start 425 * immediately based on connection requests. 426 */ 427 public WifiConnectivityManager makeWifiConnectivityManager(WifiInfo wifiInfo, 428 boolean hasConnectionRequests) { 429 return new WifiConnectivityManager(mContext, mWifiStateMachine, getWifiScanner(), 430 mWifiConfigManager, wifiInfo, mWifiNetworkSelector, mWifiConnectivityHelper, 431 mWifiLastResortWatchdog, mNotificationController, mWifiMetrics, 432 mWifiStateMachineHandlerThread.getLooper(), mClock, mConnectivityLocalLog, 433 hasConnectionRequests, mFrameworkFacade, mSavedNetworkEvaluator, 434 mScoredNetworkEvaluator, mPasspointNetworkEvaluator); 435 } 436 437 public WifiPermissionsUtil getWifiPermissionsUtil() { 438 return mWifiPermissionsUtil; 439 } 440 441 public WifiPermissionsWrapper getWifiPermissionsWrapper() { 442 return mWifiPermissionsWrapper; 443 } 444 445 /** 446 * Returns a singleton instance of a HandlerThread for injection. Uses lazy initialization. 447 * 448 * TODO: share worker thread with other Wi-Fi handlers (b/27924886) 449 */ 450 public HandlerThread getWifiAwareHandlerThread() { 451 if (mWifiAwareHandlerThread == null) { // lazy initialization 452 mWifiAwareHandlerThread = new HandlerThread("wifiAwareService"); 453 mWifiAwareHandlerThread.start(); 454 } 455 return mWifiAwareHandlerThread; 456 } 457 458 /** 459 * Returns a single instance of HalDeviceManager for injection. 460 */ 461 public HalDeviceManager getHalDeviceManager() { 462 return mHalDeviceManager; 463 } 464 465 public Runtime getJavaRuntime() { 466 return mJavaRuntime; 467 } 468 469 public WifiNative getWifiNative() { 470 return mWifiNative; 471 } 472 473 public WifiMonitor getWifiMonitor() { 474 return mWifiMonitor; 475 } 476 477 public WifiP2pNative getWifiP2pNative() { 478 return mWifiP2pNative; 479 } 480 481 public WifiP2pMonitor getWifiP2pMonitor() { 482 return mWifiP2pMonitor; 483 } 484 485 public SelfRecovery getSelfRecovery() { 486 return mSelfRecovery; 487 } 488} 489