WifiInjector.java revision 163f9765f9e4c3f868b1e0d630b6adeaa115fb4a
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.content.Context; 20import android.net.NetworkScoreManager; 21import android.net.wifi.IApInterface; 22import android.net.wifi.IWifiScanner; 23import android.net.wifi.IWificond; 24import android.net.wifi.WifiConfiguration; 25import android.net.wifi.WifiInfo; 26import android.net.wifi.WifiScanner; 27import android.os.BatteryStats; 28import android.os.HandlerThread; 29import android.os.IBinder; 30import android.os.INetworkManagementService; 31import android.os.Looper; 32import android.os.ServiceManager; 33import android.os.SystemProperties; 34import android.os.UserManager; 35import android.security.KeyStore; 36import android.telephony.TelephonyManager; 37import android.util.LocalLog; 38 39import com.android.internal.R; 40import com.android.internal.app.IBatteryStats; 41import com.android.server.am.BatteryStatsService; 42import com.android.server.net.DelayedDiskWrite; 43import com.android.server.net.IpConfigStore; 44import com.android.server.wifi.hotspot2.LegacyPasspointConfigParser; 45import com.android.server.wifi.hotspot2.PasspointManager; 46import com.android.server.wifi.hotspot2.PasspointNetworkEvaluator; 47import com.android.server.wifi.hotspot2.PasspointObjectFactory; 48import com.android.server.wifi.p2p.SupplicantP2pIfaceHal; 49import com.android.server.wifi.p2p.WifiP2pMonitor; 50import com.android.server.wifi.p2p.WifiP2pNative; 51import com.android.server.wifi.util.WifiPermissionsUtil; 52import com.android.server.wifi.util.WifiPermissionsWrapper; 53 54/** 55 * WiFi dependency injector. To be used for accessing various WiFi class instances and as a 56 * handle for mock injection. 57 * 58 * Some WiFi class instances currently depend on having a Looper from a HandlerThread that has 59 * been started. To accommodate this, we have a two-phased approach to initialize and retrieve 60 * an instance of the WifiInjector. 61 */ 62public class WifiInjector { 63 private static final String BOOT_DEFAULT_WIFI_COUNTRY_CODE = "ro.boot.wificountrycode"; 64 private static final String WIFICOND_SERVICE_NAME = "wificond"; 65 66 static WifiInjector sWifiInjector = null; 67 68 private final Context mContext; 69 private final FrameworkFacade mFrameworkFacade = new FrameworkFacade(); 70 private final HandlerThread mWifiServiceHandlerThread; 71 private final HandlerThread mWifiStateMachineHandlerThread; 72 private final WifiTrafficPoller mTrafficPoller; 73 private final WifiCountryCode mCountryCode; 74 private final BackupManagerProxy mBackupManagerProxy = new BackupManagerProxy(); 75 private final WifiApConfigStore mWifiApConfigStore; 76 private final WifiNative mWifiNative; 77 private final WifiMonitor mWifiMonitor; 78 private final WifiP2pNative mWifiP2pNative; 79 private final WifiP2pMonitor mWifiP2pMonitor; 80 private final SupplicantStaIfaceHal mSupplicantStaIfaceHal; 81 private final SupplicantP2pIfaceHal mSupplicantP2pIfaceHal; 82 private final WifiVendorHal mWifiVendorHal; 83 private final WifiStateMachine mWifiStateMachine; 84 private final WifiSettingsStore mSettingsStore; 85 private final WifiCertManager mCertManager; 86 private final WifiLockManager mLockManager; 87 private final WifiController mWifiController; 88 private final WificondControl mWificondControl; 89 private final Clock mClock = new Clock(); 90 private final WifiMetrics mWifiMetrics = new WifiMetrics(mClock); 91 private final WifiLastResortWatchdog mWifiLastResortWatchdog; 92 private final PropertyService mPropertyService = new SystemPropertyService(); 93 private final BuildProperties mBuildProperties = new SystemBuildProperties(); 94 private final KeyStore mKeyStore = KeyStore.getInstance(); 95 private final WifiBackupRestore mWifiBackupRestore = new WifiBackupRestore(); 96 private final WifiMulticastLockManager mWifiMulticastLockManager; 97 private final WifiConfigStore mWifiConfigStore; 98 private final WifiKeyStore mWifiKeyStore; 99 private final WifiNetworkHistory mWifiNetworkHistory; 100 private final IpConfigStore mIpConfigStore; 101 private final WifiConfigStoreLegacy mWifiConfigStoreLegacy; 102 private final WifiConfigManager mWifiConfigManager; 103 private final WifiNetworkSelector mWifiNetworkSelector; 104 private final SavedNetworkEvaluator mSavedNetworkEvaluator; 105 private final PasspointNetworkEvaluator mPasspointNetworkEvaluator; 106 private final RecommendedNetworkEvaluator mRecommendedNetworkEvaluator; 107 private final NetworkScoreManager mNetworkScoreManager; 108 private WifiScanner mWifiScanner; 109 private final WifiPermissionsWrapper mWifiPermissionsWrapper; 110 private final WifiPermissionsUtil mWifiPermissionsUtil; 111 private final PasspointManager mPasspointManager; 112 private final SIMAccessor mSimAccessor; 113 private HandlerThread mWifiAwareHandlerThread; 114 private HalDeviceManager mHalDeviceManager; 115 private final IBatteryStats mBatteryStats; 116 private final WifiStateTracker mWifiStateTracker; 117 private final Runtime mJavaRuntime; 118 119 private final boolean mUseRealLogger; 120 121 public WifiInjector(Context context) { 122 if (context == null) { 123 throw new IllegalStateException( 124 "WifiInjector should not be initialized with a null Context."); 125 } 126 127 if (sWifiInjector != null) { 128 throw new IllegalStateException( 129 "WifiInjector was already created, use getInstance instead."); 130 } 131 132 sWifiInjector = this; 133 134 mContext = context; 135 mUseRealLogger = mContext.getResources().getBoolean( 136 R.bool.config_wifi_enable_wifi_firmware_debugging); 137 mSettingsStore = new WifiSettingsStore(mContext); 138 mWifiPermissionsWrapper = new WifiPermissionsWrapper(mContext); 139 mNetworkScoreManager = mContext.getSystemService(NetworkScoreManager.class); 140 mWifiPermissionsUtil = new WifiPermissionsUtil(mWifiPermissionsWrapper, mContext, 141 mSettingsStore, UserManager.get(mContext), mNetworkScoreManager, this); 142 mBatteryStats = IBatteryStats.Stub.asInterface(mFrameworkFacade.getService( 143 BatteryStats.SERVICE_NAME)); 144 mWifiStateTracker = new WifiStateTracker(mBatteryStats); 145 // Now create and start handler threads 146 mWifiServiceHandlerThread = new HandlerThread("WifiService"); 147 mWifiServiceHandlerThread.start(); 148 mWifiStateMachineHandlerThread = new HandlerThread("WifiStateMachine"); 149 mWifiStateMachineHandlerThread.start(); 150 Looper wifiStateMachineLooper = mWifiStateMachineHandlerThread.getLooper(); 151 152 // Modules interacting with Native. 153 mWifiMonitor = new WifiMonitor(this); 154 mHalDeviceManager = new HalDeviceManager(); 155 mWifiVendorHal = new WifiVendorHal(mHalDeviceManager, mWifiStateMachineHandlerThread); 156 mSupplicantStaIfaceHal = new SupplicantStaIfaceHal(mContext, mWifiMonitor); 157 mWificondControl = new WificondControl(this, mWifiMonitor); 158 mWifiNative = new WifiNative(SystemProperties.get("wifi.interface", "wlan0"), 159 mWifiVendorHal, mSupplicantStaIfaceHal, mWificondControl); 160 mWifiP2pMonitor = new WifiP2pMonitor(this); 161 mSupplicantP2pIfaceHal = new SupplicantP2pIfaceHal(mWifiP2pMonitor); 162 mWifiP2pNative = new WifiP2pNative(SystemProperties.get("wifi.direct.interface", "p2p0"), 163 mSupplicantP2pIfaceHal); 164 165 // Now get instances of all the objects that depend on the HandlerThreads 166 mTrafficPoller = new WifiTrafficPoller(mContext, mWifiServiceHandlerThread.getLooper(), 167 mWifiNative.getInterfaceName()); 168 mCountryCode = new WifiCountryCode(mWifiNative, 169 SystemProperties.get(BOOT_DEFAULT_WIFI_COUNTRY_CODE), 170 mContext.getResources() 171 .getBoolean(R.bool.config_wifi_revert_country_code_on_cellular_loss)); 172 mWifiApConfigStore = new WifiApConfigStore(mContext, mBackupManagerProxy); 173 174 // WifiConfigManager/Store objects and their dependencies. 175 // New config store 176 mWifiKeyStore = new WifiKeyStore(mKeyStore); 177 mWifiConfigStore = new WifiConfigStore( 178 mContext, wifiStateMachineLooper, mClock, 179 WifiConfigStore.createSharedFile()); 180 // Legacy config store 181 DelayedDiskWrite writer = new DelayedDiskWrite(); 182 mWifiNetworkHistory = new WifiNetworkHistory(mContext, writer); 183 mIpConfigStore = new IpConfigStore(writer); 184 mWifiConfigStoreLegacy = new WifiConfigStoreLegacy( 185 mWifiNetworkHistory, mWifiNative, mIpConfigStore, 186 new LegacyPasspointConfigParser()); 187 // Config Manager 188 mWifiConfigManager = new WifiConfigManager(mContext, mClock, 189 UserManager.get(mContext), TelephonyManager.from(mContext), 190 mWifiKeyStore, mWifiConfigStore, mWifiConfigStoreLegacy, mWifiPermissionsUtil, 191 mWifiPermissionsWrapper, new NetworkListStoreData(), 192 new DeletedEphemeralSsidsStoreData()); 193 mWifiNetworkSelector = new WifiNetworkSelector(mContext, mWifiConfigManager, mClock); 194 LocalLog localLog = mWifiNetworkSelector.getLocalLog(); 195 mSavedNetworkEvaluator = new SavedNetworkEvaluator(mContext, 196 mWifiConfigManager, mClock, localLog, wifiStateMachineLooper, mFrameworkFacade); 197 mRecommendedNetworkEvaluator = new RecommendedNetworkEvaluator(context, 198 context.getContentResolver(), wifiStateMachineLooper, mFrameworkFacade, 199 mNetworkScoreManager, mWifiConfigManager, localLog); 200 mSimAccessor = new SIMAccessor(mContext); 201 mPasspointManager = new PasspointManager(mContext, mWifiNative, mWifiKeyStore, mClock, 202 mSimAccessor, new PasspointObjectFactory(), mWifiConfigManager, mWifiConfigStore); 203 mPasspointNetworkEvaluator = new PasspointNetworkEvaluator( 204 mPasspointManager, mWifiConfigManager, localLog); 205 // mWifiStateMachine has an implicit dependency on mJavaRuntime due to WifiDiagnostics. 206 mJavaRuntime = Runtime.getRuntime(); 207 mWifiStateMachine = new WifiStateMachine(mContext, mFrameworkFacade, 208 wifiStateMachineLooper, UserManager.get(mContext), 209 this, mBackupManagerProxy, mCountryCode, mWifiNative); 210 mCertManager = new WifiCertManager(mContext); 211 mLockManager = new WifiLockManager(mContext, BatteryStatsService.getService()); 212 mWifiController = new WifiController(mContext, mWifiStateMachine, mSettingsStore, 213 mLockManager, mWifiServiceHandlerThread.getLooper(), mFrameworkFacade); 214 mWifiLastResortWatchdog = new WifiLastResortWatchdog(mWifiController, mWifiMetrics); 215 mWifiMulticastLockManager = new WifiMulticastLockManager(mWifiStateMachine, 216 BatteryStatsService.getService()); 217 } 218 219 /** 220 * Obtain an instance of the WifiInjector class. 221 * 222 * This is the generic method to get an instance of the class. The first instance should be 223 * retrieved using the getInstanceWithContext method. 224 */ 225 public static WifiInjector getInstance() { 226 if (sWifiInjector == null) { 227 throw new IllegalStateException( 228 "Attempted to retrieve a WifiInjector instance before constructor was called."); 229 } 230 return sWifiInjector; 231 } 232 233 public WifiMetrics getWifiMetrics() { 234 return mWifiMetrics; 235 } 236 237 public SupplicantStaIfaceHal getSupplicantStaIfaceHal() { 238 return mSupplicantStaIfaceHal; 239 } 240 241 public BackupManagerProxy getBackupManagerProxy() { 242 return mBackupManagerProxy; 243 } 244 245 public FrameworkFacade getFrameworkFacade() { 246 return mFrameworkFacade; 247 } 248 249 public HandlerThread getWifiServiceHandlerThread() { 250 return mWifiServiceHandlerThread; 251 } 252 253 public HandlerThread getWifiStateMachineHandlerThread() { 254 return mWifiStateMachineHandlerThread; 255 } 256 257 public WifiTrafficPoller getWifiTrafficPoller() { 258 return mTrafficPoller; 259 } 260 261 public WifiCountryCode getWifiCountryCode() { 262 return mCountryCode; 263 } 264 265 public WifiApConfigStore getWifiApConfigStore() { 266 return mWifiApConfigStore; 267 } 268 269 public WifiStateMachine getWifiStateMachine() { 270 return mWifiStateMachine; 271 } 272 273 public WifiSettingsStore getWifiSettingsStore() { 274 return mSettingsStore; 275 } 276 277 public WifiCertManager getWifiCertManager() { 278 return mCertManager; 279 } 280 281 public WifiLockManager getWifiLockManager() { 282 return mLockManager; 283 } 284 285 public WifiController getWifiController() { 286 return mWifiController; 287 } 288 289 public WifiLastResortWatchdog getWifiLastResortWatchdog() { 290 return mWifiLastResortWatchdog; 291 } 292 293 public Clock getClock() { 294 return mClock; 295 } 296 297 public PropertyService getPropertyService() { 298 return mPropertyService; 299 } 300 301 public BuildProperties getBuildProperties() { 302 return mBuildProperties; 303 } 304 305 public KeyStore getKeyStore() { 306 return mKeyStore; 307 } 308 309 public WifiBackupRestore getWifiBackupRestore() { 310 return mWifiBackupRestore; 311 } 312 313 public WifiMulticastLockManager getWifiMulticastLockManager() { 314 return mWifiMulticastLockManager; 315 } 316 317 public WifiConfigManager getWifiConfigManager() { 318 return mWifiConfigManager; 319 } 320 321 public PasspointManager getPasspointManager() { 322 return mPasspointManager; 323 } 324 325 public TelephonyManager makeTelephonyManager() { 326 // may not be available when WiFi starts 327 return (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); 328 } 329 330 public WifiStateTracker getWifiStateTracker() { 331 return mWifiStateTracker; 332 } 333 334 public IWificond makeWificond() { 335 // We depend on being able to refresh our binder in WifiStateMachine, so don't cache it. 336 IBinder binder = ServiceManager.getService(WIFICOND_SERVICE_NAME); 337 return IWificond.Stub.asInterface(binder); 338 } 339 340 /** 341 * Create a SoftApManager. 342 * @param nmService NetworkManagementService allowing SoftApManager to listen for interface 343 * changes 344 * @param listener listener for SoftApManager 345 * @param apInterface network interface to start hostapd against 346 * @param config softAp WifiConfiguration 347 * @return an instance of SoftApManager 348 */ 349 public SoftApManager makeSoftApManager(INetworkManagementService nmService, 350 SoftApManager.Listener listener, 351 IApInterface apInterface, 352 WifiConfiguration config) { 353 return new SoftApManager(mWifiServiceHandlerThread.getLooper(), 354 mWifiNative, mCountryCode.getCountryCode(), 355 listener, apInterface, nmService, 356 mWifiApConfigStore, config, mWifiMetrics); 357 } 358 359 /** 360 * Create a WifiLog instance. 361 * @param tag module name to include in all log messages 362 */ 363 public WifiLog makeLog(String tag) { 364 return new LogcatLog(tag); 365 } 366 367 public BaseWifiDiagnostics makeWifiDiagnostics(WifiNative wifiNative) { 368 if (mUseRealLogger) { 369 return new WifiDiagnostics( 370 mContext, this, mWifiStateMachine, wifiNative, mBuildProperties, 371 new LastMileLogger(this)); 372 } else { 373 return new BaseWifiDiagnostics(wifiNative); 374 } 375 } 376 377 /** 378 * Obtain an instance of WifiScanner. 379 * If it was not already created, then obtain an instance. Note, this must be done lazily since 380 * WifiScannerService is separate and created later. 381 */ 382 public synchronized WifiScanner getWifiScanner() { 383 if (mWifiScanner == null) { 384 mWifiScanner = new WifiScanner(mContext, 385 IWifiScanner.Stub.asInterface(ServiceManager.getService( 386 Context.WIFI_SCANNING_SERVICE)), 387 mWifiStateMachineHandlerThread.getLooper()); 388 } 389 return mWifiScanner; 390 } 391 392 /** 393 * Obtain an instance of WifiNetworkSelector. 394 */ 395 public WifiNetworkSelector getWifiNetworkSelector() { 396 return mWifiNetworkSelector; 397 } 398 399 /** 400 * Obtain a new instance of WifiConnectivityManager. 401 * 402 * Create and return a new WifiConnectivityManager. 403 * @param wifiInfo WifiInfo object for updating wifi state. 404 * @param hasConnectionRequests boolean indicating if WifiConnectivityManager to start 405 * immediately based on connection requests. 406 */ 407 public WifiConnectivityManager makeWifiConnectivityManager(WifiInfo wifiInfo, 408 boolean hasConnectionRequests) { 409 return new WifiConnectivityManager(mContext, mWifiStateMachine, getWifiScanner(), 410 mWifiConfigManager, wifiInfo, mWifiNetworkSelector, mWifiLastResortWatchdog, 411 mWifiMetrics, mWifiStateMachineHandlerThread.getLooper(), mClock, 412 hasConnectionRequests, mFrameworkFacade, mSavedNetworkEvaluator, 413 mRecommendedNetworkEvaluator, mPasspointNetworkEvaluator); 414 } 415 416 public WifiPermissionsUtil getWifiPermissionsUtil() { 417 return mWifiPermissionsUtil; 418 } 419 420 public WifiPermissionsWrapper getWifiPermissionsWrapper() { 421 return mWifiPermissionsWrapper; 422 } 423 424 /** 425 * Returns a singleton instance of a HandlerThread for injection. Uses lazy initialization. 426 * 427 * TODO: share worker thread with other Wi-Fi handlers (b/27924886) 428 */ 429 public HandlerThread getWifiAwareHandlerThread() { 430 if (mWifiAwareHandlerThread == null) { // lazy initialization 431 mWifiAwareHandlerThread = new HandlerThread("wifiAwareService"); 432 mWifiAwareHandlerThread.start(); 433 } 434 return mWifiAwareHandlerThread; 435 } 436 437 /** 438 * Returns a single instance of HalDeviceManager for injection. 439 */ 440 public HalDeviceManager getHalDeviceManager() { 441 return mHalDeviceManager; 442 } 443 444 public Runtime getJavaRuntime() { 445 return mJavaRuntime; 446 } 447 448 public WifiNative getWifiNative() { 449 return mWifiNative; 450 } 451 452 public WifiMonitor getWifiMonitor() { 453 return mWifiMonitor; 454 } 455 456 public WifiP2pNative getWifiP2pNative() { 457 return mWifiP2pNative; 458 } 459 460 public WifiP2pMonitor getWifiP2pMonitor() { 461 return mWifiP2pMonitor; 462 } 463} 464