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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "chrome/utility/wifi/wifi_service.h" |
| 6 |
| 7 #include <iphlpapi.h> |
| 8 #include <objbase.h> |
| 9 #include <wlanapi.h> |
| 10 |
| 11 #include "base/base_paths_win.h" |
| 12 #include "base/bind.h" |
| 13 #include "base/files/file_path.h" |
| 14 #include "base/memory/ref_counted.h" |
| 15 #include "base/message_loop/message_loop.h" |
| 16 #include "base/path_service.h" |
| 17 #include "base/strings/string16.h" |
| 18 #include "base/strings/string_util.h" |
| 19 #include "base/strings/utf_string_conversions.h" |
| 20 #include "base/win/registry.h" |
| 21 #include "components/onc/onc_constants.h" |
| 22 |
| 23 namespace { |
| 24 const char kWiFiServiceError[] = "Error.WiFiService"; |
| 25 const wchar_t kNwCategoryWizardRegKey[] = |
| 26 L"Software\\Microsoft\\Windows NT\\CurrentVersion\\Network\\" |
| 27 L"NwCategoryWizard"; |
| 28 const wchar_t kNwCategoryWizardRegValue[] = L"Show"; |
| 29 const wchar_t kNwCategoryWizardSavedRegValue[] = L"ShowSaved"; |
| 30 const wchar_t kNwCategoryWizardDeleteRegValue[] = L"ShowDelete"; |
| 31 const wchar_t kWlanApiDll[] = L"wlanapi.dll"; |
| 32 |
| 33 // WlanApi function names |
| 34 const char kWlanConnect[] = "WlanConnect"; |
| 35 const char kWlanCloseHandle[] = "WlanCloseHandle"; |
| 36 const char kWlanDisconnect[] = "WlanDisconnect"; |
| 37 const char kWlanEnumInterfaces[] = "WlanEnumInterfaces"; |
| 38 const char kWlanFreeMemory[] = "WlanFreeMemory"; |
| 39 const char kWlanGetAvailableNetworkList[] = "WlanGetAvailableNetworkList"; |
| 40 const char kWlanGetNetworkBssList[] = "WlanGetNetworkBssList"; |
| 41 const char kWlanGetProfile[] = "WlanGetProfile"; |
| 42 const char kWlanOpenHandle[] = "WlanOpenHandle"; |
| 43 const char kWlanRegisterNotification[] = "WlanRegisterNotification"; |
| 44 const char kWlanSaveTemporaryProfile[] = "WlanSaveTemporaryProfile"; |
| 45 const char kWlanScan[] = "WlanScan"; |
| 46 |
| 47 // WlanApi function definitions |
| 48 typedef DWORD (WINAPI* WlanConnectFunction)( |
| 49 HANDLE hClientHandle, |
| 50 CONST GUID *pInterfaceGuid, |
| 51 CONST PWLAN_CONNECTION_PARAMETERS pConnectionParameters, |
| 52 PVOID pReserved); |
| 53 |
| 54 typedef DWORD (WINAPI* WlanCloseHandleFunction)( |
| 55 HANDLE hClientHandle, |
| 56 PVOID pReserved); |
| 57 |
| 58 typedef DWORD (WINAPI* WlanDisconnectFunction)( |
| 59 HANDLE hClientHandle, |
| 60 CONST GUID *pInterfaceGuid, |
| 61 PVOID pReserved); |
| 62 |
| 63 typedef DWORD (WINAPI* WlanEnumInterfacesFunction)( |
| 64 HANDLE hClientHandle, |
| 65 PVOID pReserved, |
| 66 PWLAN_INTERFACE_INFO_LIST *ppInterfaceList); |
| 67 |
| 68 typedef VOID (WINAPI* WlanFreeMemoryFunction)( |
| 69 _In_ PVOID pMemory); |
| 70 |
| 71 typedef DWORD (WINAPI* WlanGetAvailableNetworkListFunction)( |
| 72 HANDLE hClientHandle, |
| 73 CONST GUID *pInterfaceGuid, |
| 74 DWORD dwFlags, |
| 75 PVOID pReserved, |
| 76 PWLAN_AVAILABLE_NETWORK_LIST *ppAvailableNetworkList); |
| 77 |
| 78 typedef DWORD (WINAPI* WlanGetNetworkBssListFunction)( |
| 79 HANDLE hClientHandle, |
| 80 const GUID* pInterfaceGuid, |
| 81 const PDOT11_SSID pDot11Ssid, |
| 82 DOT11_BSS_TYPE dot11BssType, |
| 83 BOOL bSecurityEnabled, |
| 84 PVOID pReserved, |
| 85 PWLAN_BSS_LIST* ppWlanBssList); |
| 86 |
| 87 typedef DWORD (WINAPI* WlanGetProfileFunction)( |
| 88 HANDLE hClientHandle, |
| 89 CONST GUID *pInterfaceGuid, |
| 90 LPCWSTR strProfileName, |
| 91 PVOID pReserved, |
| 92 LPWSTR *pstrProfileXml, |
| 93 DWORD *pdwFlags, |
| 94 DWORD *pdwGrantedAccess); |
| 95 |
| 96 typedef DWORD (WINAPI* WlanOpenHandleFunction)( |
| 97 DWORD dwClientVersion, |
| 98 PVOID pReserved, |
| 99 PDWORD pdwNegotiatedVersion, |
| 100 PHANDLE phClientHandle); |
| 101 |
| 102 typedef DWORD (WINAPI* WlanRegisterNotificationFunction)( |
| 103 HANDLE hClientHandle, |
| 104 DWORD dwNotifSource, |
| 105 BOOL bIgnoreDuplicate, |
| 106 WLAN_NOTIFICATION_CALLBACK funcCallback, |
| 107 PVOID pCallbackContext, |
| 108 PVOID pReserved, |
| 109 PDWORD pdwPrevNotifSource); |
| 110 |
| 111 typedef DWORD (WINAPI* WlanSaveTemporaryProfileFunction)( |
| 112 HANDLE hClientHandle, |
| 113 CONST GUID* pInterfaceGuid, |
| 114 LPCWSTR strProfileName, |
| 115 LPCWSTR strAllUserProfileSecurity, |
| 116 DWORD dwFlags, |
| 117 BOOL bOverWrite, |
| 118 PVOID pReserved); |
| 119 |
| 120 typedef DWORD (WINAPI* WlanScanFunction)( |
| 121 HANDLE hClientHandle, |
| 122 CONST GUID *pInterfaceGuid, |
| 123 CONST PDOT11_SSID pDot11Ssid, |
| 124 CONST PWLAN_RAW_DATA pIeData, |
| 125 PVOID pReserved); |
| 126 |
| 127 } // namespace |
| 128 |
| 129 namespace wifi { |
| 130 |
| 131 // Implementation of WiFiService for Windows. |
| 132 class WiFiServiceImpl : public WiFiService, base::NonThreadSafe { |
| 133 public: |
| 134 WiFiServiceImpl(); |
| 135 virtual ~WiFiServiceImpl(); |
| 136 |
| 137 // WiFiService interface implementation. |
| 138 |
| 139 virtual bool Initialize() OVERRIDE; |
| 140 |
| 141 virtual void UnInitialize() OVERRIDE; |
| 142 |
| 143 virtual void GetProperties(const std::string& network_guid, |
| 144 const NetworkPropertiesCallback& callback, |
| 145 const ErrorCallback& error_callback) OVERRIDE; |
| 146 |
| 147 virtual void GetState(const std::string& network_guid, |
| 148 const NetworkPropertiesCallback& callback, |
| 149 const ErrorCallback& error_callback) OVERRIDE; |
| 150 |
| 151 virtual void GetManagedProperties( |
| 152 const std::string& network_guid, |
| 153 const DictionaryResultCallback& callback, |
| 154 const ErrorCallback& error_callback) OVERRIDE; |
| 155 |
| 156 virtual void SetProperties(const std::string& network_guid, |
| 157 const base::DictionaryValue& properties, |
| 158 const StringResultCallback& callback, |
| 159 const ErrorCallback& error_callback) OVERRIDE; |
| 160 |
| 161 virtual void GetVisibleNetworks(const NetworkListCallback& callback, |
| 162 const ErrorCallback& error_callback) OVERRIDE; |
| 163 |
| 164 virtual void RequestNetworkScan() OVERRIDE; |
| 165 |
| 166 virtual void StartConnect(const std::string& network_guid, |
| 167 const StringResultCallback& callback, |
| 168 const ErrorCallback& error_callback) OVERRIDE; |
| 169 |
| 170 virtual void StartDisconnect(const std::string& network_guid, |
| 171 const StringResultCallback& callback, |
| 172 const ErrorCallback& error_callback) OVERRIDE; |
| 173 |
| 174 virtual void SetNetworksChangedObserver( |
| 175 const NetworkGuidListCallback& observer) OVERRIDE; |
| 176 |
| 177 virtual void SetNetworkListChangedObserver( |
| 178 const NetworkGuidListCallback& observer) OVERRIDE; |
| 179 |
| 180 private: |
| 181 // Static callback for Windows WLAN_NOTIFICATION. Calls OnWlanNotification |
| 182 // on WiFiServiceImpl passed back as |context|. |
| 183 static void __stdcall OnWlanNotificationCallback( |
| 184 PWLAN_NOTIFICATION_DATA wlan_notification_data, |
| 185 PVOID context); |
| 186 |
| 187 // Callback for Windows WLAN_NOTIFICATION. Called on random thread from |
| 188 // OnWlanNotificationCallback. Handles network connectivity and scan complete |
| 189 // notification and posts tasks to main thread. |
| 190 void OnWlanNotification(PWLAN_NOTIFICATION_DATA wlan_notification_data); |
| 191 |
| 192 // Handles NetworkScanComplete notification on main thread. Sends |
| 193 // |NetworkListChanged| event with new list of visible networks. |
| 194 void OnNetworkScanCompleteOnMainThread(); |
| 195 |
| 196 // Wait up to |kMaxAttempts| with |kAttemptDelayMs| delay for connection |
| 197 // to network with |network_guid|. Reset DHCP and Notify that |NetworkChanged| |
| 198 // upon success. |
| 199 void WaitForNetworkConnect(const std::string& network_guid, int attempt); |
| 200 |
| 201 // Check |error_code| and if is not |ERROR_SUCCESS|, then run |error_callback| |
| 202 // with |error_name|. |
| 203 bool CheckError(const ErrorCallback& error_callback, |
| 204 const std::string& error_name, |
| 205 DWORD error_code) const; |
| 206 |
| 207 // Return |iterator| to network identified by |network_guid| in |networks| |
| 208 // list. |
| 209 NetworkList::iterator FindNetwork(NetworkList& networks, |
| 210 const std::string& network_guid); |
| 211 |
| 212 // Save currently connected network profile and return its |
| 213 // |connected_network_guid|, so it can be re-connected later. |
| 214 DWORD SaveCurrentConnectedNetwork(std::string* connected_network_guid); |
| 215 |
| 216 // Sort networks, so connected/connecting is up front, then by type: |
| 217 // Ethernet, WiFi, Cellular, VPN |
| 218 static void SortNetworks(NetworkList* networks); |
| 219 |
| 220 // Open a WLAN client handle, register for WLAN notifications. |
| 221 DWORD OpenClientHandle(); |
| 222 |
| 223 // Reset DHCP on wireless network to work around an issue when Windows |
| 224 // takes forever to connect to the network, e.g. after Chromecast |
| 225 // device reset. |
| 226 DWORD ResetDHCP(); |
| 227 |
| 228 // Find |adapter_index_map| by |interface_guid| for DHCP reset. |
| 229 DWORD FindAdapterIndexMapByGUID(const GUID& interface_guid, |
| 230 IP_ADAPTER_INDEX_MAP* adapter_index_map); |
| 231 |
| 232 // Avoid the network location wizard to pop up when network is connected. |
| 233 // Preserve current value in |saved_nw_category_wizard_|. |
| 234 DWORD DisableNwCategoryWizard(); |
| 235 |
| 236 // Restore network location wizard to value saved by DisableNwCategoryWizard. |
| 237 DWORD RestoreNwCategoryWizard(); |
| 238 |
| 239 // Ensure that |client_| handle is initialized. |
| 240 DWORD EnsureInitialized(); |
| 241 |
| 242 // Close |client_| handle if it is open. |
| 243 DWORD CloseClientHandle(); |
| 244 |
| 245 // Get |profile_name| from unique |network_guid|. |
| 246 base::string16 ProfileNameFromGUID(const std::string& network_guid) const { |
| 247 return base::UTF8ToUTF16(network_guid); |
| 248 } |
| 249 |
| 250 // Get |dot11_ssid| from unique |network_guid|. |
| 251 DOT11_SSID SSIDFromGUID(const std::string& network_guid) const; |
| 252 |
| 253 // Get unique |network_guid| string based on |dot11_ssid|. |
| 254 std::string GUIDFromSSID(const DOT11_SSID& dot11_ssid) const { |
| 255 return std::string(reinterpret_cast<const char*>(dot11_ssid.ucSSID), |
| 256 dot11_ssid.uSSIDLength); |
| 257 } |
| 258 |
| 259 // Get network |ssid| string based on |wlan|. |
| 260 std::string SSIDFromWLAN(const WLAN_AVAILABLE_NETWORK& wlan) const { |
| 261 return GUIDFromSSID(wlan.dot11Ssid); |
| 262 } |
| 263 |
| 264 // Get unique |network_guid| string based on |wlan|. |
| 265 std::string GUIDFromWLAN(const WLAN_AVAILABLE_NETWORK& wlan) const { |
| 266 return SSIDFromWLAN(wlan); |
| 267 } |
| 268 |
| 269 // Deduce |onc::wifi| security from |alg|. |
| 270 std::string SecurityFromDot11AuthAlg(DOT11_AUTH_ALGORITHM alg) const; |
| 271 |
| 272 // Populate |properties| based on |wlan| and its corresponding bss info from |
| 273 // |wlan_bss_list|. |
| 274 void NetworkPropertiesFromAvailableNetwork(const WLAN_AVAILABLE_NETWORK& wlan, |
| 275 const WLAN_BSS_LIST& wlan_bss_list, |
| 276 NetworkProperties* properties); |
| 277 |
| 278 // Get the list of visible wireless networks. |
| 279 DWORD GetVisibleNetworkList(NetworkList* network_list); |
| 280 |
| 281 // Find currently connected network if any. Populate |connected_network_guid| |
| 282 // on success. |
| 283 DWORD FindConnectedNetwork(std::string* connected_network_guid); |
| 284 |
| 285 // Connect to network |network_guid| using previosly stored profile if exists, |
| 286 // or just network sid. |
| 287 DWORD Connect(const std::string& network_guid); |
| 288 |
| 289 // Disconnect from currently connected network if any. |
| 290 DWORD Disconnect(); |
| 291 |
| 292 // Save temporary wireless profile for |network_guid|. |
| 293 DWORD SaveTempProfile(const std::string& network_guid); |
| 294 |
| 295 // Get previously stored |profile_xml| for |network_guid|. |
| 296 DWORD GetProfile(const std::string& network_guid, std::string* profile_xml); |
| 297 |
| 298 // Return true if there is previously stored profile xml for |network_guid|. |
| 299 bool HaveProfile(const std::string& network_guid); |
| 300 |
| 301 // Notify |network_list_changed_observer_| that list of visible networks has |
| 302 // changed to |networks|. |
| 303 void NotifyNetworkListChanged(const NetworkList& networks); |
| 304 |
| 305 // Notify |networks_changed_observer_| that network |network_guid| status has |
| 306 // changed. |
| 307 void NotifyNetworkChanged(const std::string& network_guid); |
| 308 |
| 309 // Load WlanApi.dll from SystemDirectory and get Api function pointers. |
| 310 DWORD LoadWlanLibrary(); |
| 311 // Instance of WlanApi.dll. |
| 312 HINSTANCE wlan_api_library_; |
| 313 // WlanApi function pointers |
| 314 WlanConnectFunction WlanConnect_function_; |
| 315 WlanCloseHandleFunction WlanCloseHandle_function_; |
| 316 WlanDisconnectFunction WlanDisconnect_function_; |
| 317 WlanEnumInterfacesFunction WlanEnumInterfaces_function_; |
| 318 WlanFreeMemoryFunction WlanFreeMemory_function_; |
| 319 WlanGetAvailableNetworkListFunction WlanGetAvailableNetworkList_function_; |
| 320 // WlanGetNetworkBssList function may not be avaiable on Windows XP. |
| 321 WlanGetNetworkBssListFunction WlanGetNetworkBssList_function_; |
| 322 WlanGetProfileFunction WlanGetProfile_function_; |
| 323 WlanOpenHandleFunction WlanOpenHandle_function_; |
| 324 WlanRegisterNotificationFunction WlanRegisterNotification_function_; |
| 325 WlanScanFunction WlanScan_function_; |
| 326 // WlanSaveTemporaryProfile function may not be avaiable on Windows XP. |
| 327 WlanSaveTemporaryProfileFunction WlanSaveTemporaryProfile_function_; |
| 328 |
| 329 // WLAN service handle. |
| 330 HANDLE client_; |
| 331 // GUID of the currently connected interface, if any, otherwise the GUID of |
| 332 // one of the WLAN interfaces. |
| 333 GUID interface_guid_; |
| 334 // Preserved WLAN profile xml. |
| 335 std::map<std::string, std::string> saved_profiles_xml_; |
| 336 // Observer to get notified when network(s) have changed (e.g. connect). |
| 337 NetworkGuidListCallback networks_changed_observer_; |
| 338 // Observer to get notified when network list has changed (scan complete). |
| 339 NetworkGuidListCallback network_list_changed_observer_; |
| 340 // Saved value of network location wizard show value. |
| 341 scoped_ptr<DWORD> saved_nw_category_wizard_; |
| 342 // Task runner to post tasks on main thread. |
| 343 scoped_refptr<base::TaskRunner> task_runner_; |
| 344 // If |false|, then |networks_changed_observer_| is not notified. |
| 345 bool enable_notify_network_changed_; |
| 346 // Number of attempts to check that network has connected successfully. |
| 347 static const int kMaxAttempts = 100; |
| 348 // Delay between attempts to check that network has connected successfully. |
| 349 static const int kAttemptDelayMs = 100; |
| 350 |
| 351 DISALLOW_COPY_AND_ASSIGN(WiFiServiceImpl); |
| 352 }; |
| 353 |
| 354 WiFiServiceImpl::WiFiServiceImpl() |
| 355 : wlan_api_library_(NULL), |
| 356 WlanConnect_function_(NULL), |
| 357 WlanCloseHandle_function_(NULL), |
| 358 WlanDisconnect_function_(NULL), |
| 359 WlanEnumInterfaces_function_(NULL), |
| 360 WlanFreeMemory_function_(NULL), |
| 361 WlanGetAvailableNetworkList_function_(NULL), |
| 362 WlanGetNetworkBssList_function_(NULL), |
| 363 WlanGetProfile_function_(NULL), |
| 364 WlanOpenHandle_function_(NULL), |
| 365 WlanRegisterNotification_function_(NULL), |
| 366 WlanSaveTemporaryProfile_function_(NULL), |
| 367 WlanScan_function_(NULL), |
| 368 client_(NULL), |
| 369 enable_notify_network_changed_(true) {} |
| 370 |
| 371 WiFiServiceImpl::~WiFiServiceImpl() { UnInitialize(); } |
| 372 |
| 373 bool WiFiServiceImpl::Initialize() { |
| 374 DCHECK(!client_); |
| 375 // Restore NwCategoryWizard in case if we crashed during connect. |
| 376 RestoreNwCategoryWizard(); |
| 377 DWORD error = OpenClientHandle(); |
| 378 return error == ERROR_SUCCESS; |
| 379 } |
| 380 |
| 381 void WiFiServiceImpl::UnInitialize() { |
| 382 CloseClientHandle(); |
| 383 } |
| 384 |
| 385 void WiFiServiceImpl::GetProperties(const std::string& network_guid, |
| 386 const NetworkPropertiesCallback& callback, |
| 387 const ErrorCallback& error_callback) { |
| 388 DWORD error = EnsureInitialized(); |
| 389 if (error == ERROR_SUCCESS) { |
| 390 NetworkList network_list; |
| 391 error = GetVisibleNetworkList(&network_list); |
| 392 if (error == ERROR_SUCCESS && !network_list.empty()) { |
| 393 NetworkList::const_iterator it = FindNetwork(network_list, network_guid); |
| 394 if (it != network_list.end()) { |
| 395 DLOG(INFO) << "Get Properties: " << network_guid << ":" |
| 396 << it->connection_state; |
| 397 callback.Run(network_guid, *it); |
| 398 return; |
| 399 } else { |
| 400 error = ERROR_NOT_FOUND; |
| 401 } |
| 402 } |
| 403 } |
| 404 |
| 405 CheckError(error_callback, kWiFiServiceError, error); |
| 406 } |
| 407 |
| 408 void WiFiServiceImpl::GetState(const std::string& network_guid, |
| 409 const NetworkPropertiesCallback& callback, |
| 410 const ErrorCallback& error_callback) { |
| 411 // This method is not implemented in first version as it is not used by |
| 412 // Google Cast extension. |
| 413 CheckError(error_callback, kWiFiServiceError, ERROR_CALL_NOT_IMPLEMENTED); |
| 414 } |
| 415 |
| 416 void WiFiServiceImpl::GetManagedProperties( |
| 417 const std::string& network_guid, |
| 418 const DictionaryResultCallback& callback, |
| 419 const ErrorCallback& error_callback) { |
| 420 // This method is not implemented in first version as it is not used by |
| 421 // Google Cast extension. |
| 422 CheckError(error_callback, kWiFiServiceError, ERROR_CALL_NOT_IMPLEMENTED); |
| 423 } |
| 424 |
| 425 void WiFiServiceImpl::SetProperties(const std::string& network_guid, |
| 426 const base::DictionaryValue& properties, |
| 427 const StringResultCallback& callback, |
| 428 const ErrorCallback& error_callback) { |
| 429 // This method is not implemented in first version as it is not used by |
| 430 // Google Cast extension. |
| 431 CheckError(error_callback, kWiFiServiceError, ERROR_CALL_NOT_IMPLEMENTED); |
| 432 } |
| 433 |
| 434 void WiFiServiceImpl::GetVisibleNetworks(const NetworkListCallback& callback, |
| 435 const ErrorCallback& error_callback) { |
| 436 DWORD error = EnsureInitialized(); |
| 437 |
| 438 if (error == ERROR_SUCCESS) { |
| 439 NetworkList network_list; |
| 440 error = GetVisibleNetworkList(&network_list); |
| 441 if (error == ERROR_SUCCESS && !network_list.empty()) { |
| 442 SortNetworks(&network_list); |
| 443 callback.Run(network_list); |
| 444 return; |
| 445 } |
| 446 } |
| 447 |
| 448 CheckError(error_callback, kWiFiServiceError, error); |
| 449 } |
| 450 |
| 451 void WiFiServiceImpl::RequestNetworkScan() { |
| 452 DWORD error = EnsureInitialized(); |
| 453 if (error == ERROR_SUCCESS) { |
| 454 WlanScan_function_(client_, &interface_guid_, NULL, NULL, NULL); |
| 455 } |
| 456 } |
| 457 |
| 458 void WiFiServiceImpl::StartConnect(const std::string& network_guid, |
| 459 const StringResultCallback& callback, |
| 460 const ErrorCallback& error_callback) { |
| 461 DLOG(INFO) << "Start Connect: " << network_guid; |
| 462 DWORD error = EnsureInitialized(); |
| 463 if (error == ERROR_SUCCESS) { |
| 464 std::string connected_network_guid; |
| 465 error = SaveCurrentConnectedNetwork(&connected_network_guid); |
| 466 if (error == ERROR_SUCCESS) { |
| 467 // Connect only if network |network_guid| is not connected already. |
| 468 if (network_guid != connected_network_guid) |
| 469 error = Connect(network_guid); |
| 470 if (error == ERROR_SUCCESS) { |
| 471 DisableNwCategoryWizard(); |
| 472 callback.Run(network_guid); |
| 473 // Notify that previously connected network has changed. |
| 474 NotifyNetworkChanged(connected_network_guid); |
| 475 // Start waiting for network connection state change. |
| 476 if (!networks_changed_observer_.is_null()) { |
| 477 // Disable automatic network change notifications as they get fired |
| 478 // when network is just connected, but not yet accessible (doesn't |
| 479 // have valid IP address). |
| 480 enable_notify_network_changed_ = false; |
| 481 WaitForNetworkConnect(network_guid, 0); |
| 482 return; |
| 483 } |
| 484 } |
| 485 } |
| 486 } |
| 487 CheckError(error_callback, kWiFiServiceError, error); |
| 488 } |
| 489 |
| 490 void WiFiServiceImpl::StartDisconnect(const std::string& network_guid, |
| 491 const StringResultCallback& callback, |
| 492 const ErrorCallback& error_callback) { |
| 493 DLOG(INFO) << "Start Disconnect: " << network_guid; |
| 494 DWORD error = EnsureInitialized(); |
| 495 if (error == ERROR_SUCCESS) { |
| 496 std::string connected_network_guid; |
| 497 error = SaveCurrentConnectedNetwork(&connected_network_guid); |
| 498 if (error == ERROR_SUCCESS && network_guid == connected_network_guid) { |
| 499 error = Disconnect(); |
| 500 if (error == ERROR_SUCCESS) { |
| 501 callback.Run(network_guid); |
| 502 NotifyNetworkChanged(network_guid); |
| 503 return; |
| 504 } |
| 505 } |
| 506 } |
| 507 CheckError(error_callback, kWiFiServiceError, error); |
| 508 } |
| 509 |
| 510 void WiFiServiceImpl::SetNetworksChangedObserver( |
| 511 const NetworkGuidListCallback& observer) { |
| 512 networks_changed_observer_ = observer; |
| 513 } |
| 514 |
| 515 void WiFiServiceImpl::SetNetworkListChangedObserver( |
| 516 const NetworkGuidListCallback& observer) { |
| 517 network_list_changed_observer_ = observer; |
| 518 } |
| 519 |
| 520 void WiFiServiceImpl::OnWlanNotificationCallback( |
| 521 PWLAN_NOTIFICATION_DATA wlan_notification_data, |
| 522 PVOID context) { |
| 523 WiFiServiceImpl* service = reinterpret_cast<WiFiServiceImpl*>(context); |
| 524 service->OnWlanNotification(wlan_notification_data); |
| 525 } |
| 526 |
| 527 void WiFiServiceImpl::OnWlanNotification( |
| 528 PWLAN_NOTIFICATION_DATA wlan_notification_data) { |
| 529 if (task_runner_ == NULL) |
| 530 return; |
| 531 switch (wlan_notification_data->NotificationCode) { |
| 532 case wlan_notification_acm_disconnected: |
| 533 case wlan_notification_acm_connection_complete: |
| 534 case wlan_notification_acm_connection_attempt_fail: { |
| 535 PWLAN_CONNECTION_NOTIFICATION_DATA wlan_connection_data = |
| 536 reinterpret_cast<PWLAN_CONNECTION_NOTIFICATION_DATA>( |
| 537 wlan_notification_data->pData); |
| 538 task_runner_->PostTask( |
| 539 FROM_HERE, |
| 540 base::Bind(&WiFiServiceImpl::NotifyNetworkChanged, |
| 541 base::Unretained(this), |
| 542 GUIDFromSSID(wlan_connection_data->dot11Ssid))); |
| 543 break; |
| 544 } |
| 545 case wlan_notification_acm_scan_complete: |
| 546 task_runner_->PostTask( |
| 547 FROM_HERE, |
| 548 base::Bind(&WiFiServiceImpl::OnNetworkScanCompleteOnMainThread, |
| 549 base::Unretained(this))); |
| 550 break; |
| 551 } |
| 552 } |
| 553 |
| 554 void WiFiServiceImpl::OnNetworkScanCompleteOnMainThread() { |
| 555 NetworkList networks; |
| 556 // Get current list of visible networks and notify that network list has |
| 557 // changed. |
| 558 DWORD error = GetVisibleNetworkList(&networks); |
| 559 DCHECK(error == ERROR_SUCCESS); |
| 560 if (error == ERROR_SUCCESS) |
| 561 NotifyNetworkListChanged(networks); |
| 562 } |
| 563 |
| 564 void WiFiServiceImpl::WaitForNetworkConnect(const std::string& network_guid, |
| 565 int attempt) { |
| 566 // If network didn't get connected in |kMaxAttempts|, then restore automatic |
| 567 // network change notifications and stop waiting. |
| 568 if (attempt > kMaxAttempts) { |
| 569 DLOG(ERROR) << kMaxAttempts << " attempts exceeded waiting for connect to " |
| 570 << network_guid; |
| 571 enable_notify_network_changed_ = true; |
| 572 RestoreNwCategoryWizard(); |
| 573 return; |
| 574 } |
| 575 std::string connected_network_guid; |
| 576 DWORD error = FindConnectedNetwork(&connected_network_guid); |
| 577 if (network_guid == connected_network_guid) { |
| 578 DLOG(INFO) << "WiFi Connected, Reset DHCP: " << network_guid; |
| 579 // Even though wireless network is now connected, it may still be unusable, |
| 580 // e.g. after Chromecast device reset. Reset DHCP on wireless network to |
| 581 // work around this issue. |
| 582 error = ResetDHCP(); |
| 583 // Restore previously suppressed notifications. |
| 584 enable_notify_network_changed_ = true; |
| 585 RestoreNwCategoryWizard(); |
| 586 NotifyNetworkChanged(network_guid); |
| 587 } else { |
| 588 // Continue waiting for network connection state change. |
| 589 base::MessageLoop::current()->PostDelayedTask( |
| 590 FROM_HERE, |
| 591 base::Bind(&WiFiServiceImpl::WaitForNetworkConnect, |
| 592 base::Unretained(this), |
| 593 network_guid, |
| 594 ++attempt), |
| 595 base::TimeDelta::FromMilliseconds(kAttemptDelayMs)); |
| 596 } |
| 597 } |
| 598 |
| 599 bool WiFiServiceImpl::CheckError(const ErrorCallback& error_callback, |
| 600 const std::string& error_name, |
| 601 DWORD error_code) const { |
| 602 if (error_code != ERROR_SUCCESS) { |
| 603 DLOG(ERROR) << "WiFiService Error " << error_code << ": " << error_name; |
| 604 scoped_ptr<base::DictionaryValue> error_data(new base::DictionaryValue); |
| 605 error_data->SetInteger("Win32ErrorCode", error_code); |
| 606 error_callback.Run(error_name, error_data.Pass()); |
| 607 return true; |
| 608 } |
| 609 return false; |
| 610 } |
| 611 |
| 612 WiFiService::NetworkList::iterator WiFiServiceImpl::FindNetwork( |
| 613 NetworkList& networks, |
| 614 const std::string& network_guid) { |
| 615 for (NetworkList::iterator it = networks.begin(); it != networks.end(); |
| 616 ++it) { |
| 617 if (it->guid == network_guid) |
| 618 return it; |
| 619 } |
| 620 return networks.end(); |
| 621 } |
| 622 |
| 623 DWORD WiFiServiceImpl::SaveCurrentConnectedNetwork( |
| 624 std::string* connected_network_guid) { |
| 625 // Find currently connected network. |
| 626 DWORD error = FindConnectedNetwork(connected_network_guid); |
| 627 if (error == ERROR_SUCCESS && !connected_network_guid->empty()) { |
| 628 if (error == ERROR_SUCCESS) { |
| 629 SaveTempProfile(*connected_network_guid); |
| 630 std::string profile_xml; |
| 631 error = GetProfile(*connected_network_guid, &profile_xml); |
| 632 if (error == ERROR_SUCCESS) { |
| 633 saved_profiles_xml_[*connected_network_guid] = profile_xml; |
| 634 } |
| 635 } |
| 636 } |
| 637 return error; |
| 638 } |
| 639 |
| 640 void WiFiServiceImpl::SortNetworks(NetworkList* networks) { |
| 641 networks->sort(NetworkProperties::OrderByType); |
| 642 } |
| 643 |
| 644 |
| 645 DWORD WiFiServiceImpl::LoadWlanLibrary() { |
| 646 // Use an absolute path to load the DLL to avoid DLL preloading attacks. |
| 647 base::FilePath path; |
| 648 if (!PathService::Get(base::DIR_SYSTEM, &path)) { |
| 649 DLOG(ERROR) << "Unable to get system path."; |
| 650 return ERROR_NOT_FOUND; |
| 651 } |
| 652 wlan_api_library_ = ::LoadLibraryEx(path.Append(kWlanApiDll).value().c_str(), |
| 653 NULL, |
| 654 LOAD_WITH_ALTERED_SEARCH_PATH); |
| 655 if (!wlan_api_library_) { |
| 656 DLOG(ERROR) << "Unable to load WlanApi.dll."; |
| 657 return ERROR_NOT_FOUND; |
| 658 } |
| 659 |
| 660 // Initialize WlanApi function pointers |
| 661 WlanConnect_function_ = |
| 662 reinterpret_cast<WlanConnectFunction>( |
| 663 ::GetProcAddress(wlan_api_library_, kWlanConnect)); |
| 664 WlanCloseHandle_function_ = |
| 665 reinterpret_cast<WlanCloseHandleFunction>( |
| 666 ::GetProcAddress(wlan_api_library_, kWlanCloseHandle)); |
| 667 WlanDisconnect_function_ = |
| 668 reinterpret_cast<WlanDisconnectFunction>( |
| 669 ::GetProcAddress(wlan_api_library_, kWlanDisconnect)); |
| 670 WlanEnumInterfaces_function_ = |
| 671 reinterpret_cast<WlanEnumInterfacesFunction>( |
| 672 ::GetProcAddress(wlan_api_library_, kWlanEnumInterfaces)); |
| 673 WlanFreeMemory_function_ = |
| 674 reinterpret_cast<WlanFreeMemoryFunction>( |
| 675 ::GetProcAddress(wlan_api_library_, kWlanFreeMemory)); |
| 676 WlanGetAvailableNetworkList_function_ = |
| 677 reinterpret_cast<WlanGetAvailableNetworkListFunction>( |
| 678 ::GetProcAddress(wlan_api_library_, kWlanGetAvailableNetworkList)); |
| 679 WlanGetNetworkBssList_function_ = |
| 680 reinterpret_cast<WlanGetNetworkBssListFunction>( |
| 681 ::GetProcAddress(wlan_api_library_, kWlanGetNetworkBssList)); |
| 682 WlanGetProfile_function_ = |
| 683 reinterpret_cast<WlanGetProfileFunction>( |
| 684 ::GetProcAddress(wlan_api_library_, kWlanGetProfile)); |
| 685 WlanOpenHandle_function_ = |
| 686 reinterpret_cast<WlanOpenHandleFunction>( |
| 687 ::GetProcAddress(wlan_api_library_, kWlanOpenHandle)); |
| 688 WlanRegisterNotification_function_ = |
| 689 reinterpret_cast<WlanRegisterNotificationFunction>( |
| 690 ::GetProcAddress(wlan_api_library_, kWlanRegisterNotification)); |
| 691 WlanSaveTemporaryProfile_function_ = |
| 692 reinterpret_cast<WlanSaveTemporaryProfileFunction>( |
| 693 ::GetProcAddress(wlan_api_library_, kWlanSaveTemporaryProfile)); |
| 694 WlanScan_function_ = |
| 695 reinterpret_cast<WlanScanFunction>( |
| 696 ::GetProcAddress(wlan_api_library_, kWlanScan)); |
| 697 |
| 698 if (!WlanConnect_function_ || |
| 699 !WlanCloseHandle_function_ || |
| 700 !WlanDisconnect_function_ || |
| 701 !WlanEnumInterfaces_function_ || |
| 702 !WlanFreeMemory_function_ || |
| 703 !WlanGetAvailableNetworkList_function_ || |
| 704 !WlanGetProfile_function_ || |
| 705 !WlanOpenHandle_function_ || |
| 706 !WlanRegisterNotification_function_ || |
| 707 !WlanScan_function_) { |
| 708 DLOG(ERROR) << "Unable to find required WlanApi function."; |
| 709 FreeLibrary(wlan_api_library_); |
| 710 wlan_api_library_ = NULL; |
| 711 return ERROR_NOT_FOUND; |
| 712 } |
| 713 |
| 714 // Some WlanApi functions may not be available on XP. |
| 715 if (!WlanGetNetworkBssList_function_ || |
| 716 !WlanSaveTemporaryProfile_function_) { |
| 717 DLOG(INFO) << "WlanApi function is not be available on XP."; |
| 718 } |
| 719 |
| 720 return ERROR_SUCCESS; |
| 721 } |
| 722 |
| 723 DWORD WiFiServiceImpl::OpenClientHandle() { |
| 724 DWORD error = LoadWlanLibrary(); |
| 725 DWORD service_version = 0; |
| 726 |
| 727 if (error != ERROR_SUCCESS) |
| 728 return error; |
| 729 |
| 730 // Open a handle to the service. |
| 731 error = WlanOpenHandle_function_(1, NULL, &service_version, &client_); |
| 732 |
| 733 PWLAN_INTERFACE_INFO_LIST interface_list = NULL; |
| 734 if (error == ERROR_SUCCESS) { |
| 735 // Enumerate wireless interfaces. |
| 736 error = WlanEnumInterfaces_function_(client_, NULL, &interface_list); |
| 737 if (error == ERROR_SUCCESS) { |
| 738 if (interface_list != NULL && interface_list->dwNumberOfItems != 0) { |
| 739 // Remember first interface just in case if none are connected. |
| 740 interface_guid_ = interface_list->InterfaceInfo[0].InterfaceGuid; |
| 741 // Try to find a connected interface. |
| 742 for (DWORD itf = 0; itf < interface_list->dwNumberOfItems; ++itf) { |
| 743 if (interface_list->InterfaceInfo[itf].isState == |
| 744 wlan_interface_state_connected) { |
| 745 // Found connected interface, remember it! |
| 746 interface_guid_ = interface_list->InterfaceInfo[itf].InterfaceGuid; |
| 747 break; |
| 748 } |
| 749 } |
| 750 WlanRegisterNotification_function_(client_, |
| 751 WLAN_NOTIFICATION_SOURCE_ALL, |
| 752 FALSE, |
| 753 OnWlanNotificationCallback, |
| 754 this, |
| 755 NULL, |
| 756 NULL); |
| 757 } else { |
| 758 error = ERROR_NOINTERFACE; |
| 759 } |
| 760 } |
| 761 // Clean up. |
| 762 if (interface_list != NULL) |
| 763 WlanFreeMemory_function_(interface_list); |
| 764 } |
| 765 return error; |
| 766 } |
| 767 |
| 768 DWORD WiFiServiceImpl::ResetDHCP() { |
| 769 IP_ADAPTER_INDEX_MAP adapter_index_map = {0}; |
| 770 DWORD error = FindAdapterIndexMapByGUID(interface_guid_, &adapter_index_map); |
| 771 if (error == ERROR_SUCCESS) { |
| 772 error = ::IpReleaseAddress(&adapter_index_map); |
| 773 if (error == ERROR_SUCCESS) { |
| 774 error = ::IpRenewAddress(&adapter_index_map); |
| 775 } |
| 776 } |
| 777 return error; |
| 778 } |
| 779 |
| 780 DWORD WiFiServiceImpl::FindAdapterIndexMapByGUID( |
| 781 const GUID& interface_guid, |
| 782 IP_ADAPTER_INDEX_MAP* adapter_index_map) { |
| 783 string16 guid_string; |
| 784 const int kGUIDSize = 39; |
| 785 ::StringFromGUID2( |
| 786 interface_guid, WriteInto(&guid_string, kGUIDSize), kGUIDSize); |
| 787 |
| 788 ULONG buffer_length = 0; |
| 789 DWORD error = ::GetInterfaceInfo(NULL, &buffer_length); |
| 790 if (error == ERROR_INSUFFICIENT_BUFFER) { |
| 791 scoped_ptr<unsigned char[]> buffer(new unsigned char[buffer_length]); |
| 792 IP_INTERFACE_INFO* interface_info = |
| 793 reinterpret_cast<IP_INTERFACE_INFO*>(buffer.get()); |
| 794 error = GetInterfaceInfo(interface_info, &buffer_length); |
| 795 if (error == ERROR_SUCCESS) { |
| 796 for (int adapter = 0; adapter < interface_info->NumAdapters; ++adapter) { |
| 797 if (EndsWith( |
| 798 interface_info->Adapter[adapter].Name, guid_string, false)) { |
| 799 *adapter_index_map = interface_info->Adapter[adapter]; |
| 800 break; |
| 801 } |
| 802 } |
| 803 } |
| 804 } |
| 805 return error; |
| 806 } |
| 807 |
| 808 DWORD WiFiServiceImpl::DisableNwCategoryWizard() { |
| 809 base::win::RegKey nw_category_wizard; |
| 810 DWORD error = nw_category_wizard.Open(HKEY_CURRENT_USER, |
| 811 kNwCategoryWizardRegKey, |
| 812 KEY_READ | KEY_SET_VALUE); |
| 813 if (error == ERROR_SUCCESS) { |
| 814 // Save current value if present. |
| 815 if (nw_category_wizard.HasValue(kNwCategoryWizardRegValue)) { |
| 816 DWORD saved = 0u; |
| 817 error = nw_category_wizard.ReadValueDW(kNwCategoryWizardRegValue, |
| 818 &saved); |
| 819 if (error == ERROR_SUCCESS) { |
| 820 error = nw_category_wizard.WriteValue(kNwCategoryWizardSavedRegValue, |
| 821 saved); |
| 822 } |
| 823 } else { |
| 824 // Mark that temporary value has to be deleted. |
| 825 error = nw_category_wizard.WriteValue(kNwCategoryWizardDeleteRegValue, |
| 826 1u); |
| 827 } |
| 828 |
| 829 // Disable network location wizard. |
| 830 error = nw_category_wizard.WriteValue(kNwCategoryWizardRegValue, |
| 831 static_cast<DWORD>(0)); |
| 832 } |
| 833 |
| 834 return error; |
| 835 } |
| 836 |
| 837 DWORD WiFiServiceImpl::RestoreNwCategoryWizard() { |
| 838 base::win::RegKey nw_category_wizard; |
| 839 DWORD error = nw_category_wizard.Open(HKEY_CURRENT_USER, |
| 840 kNwCategoryWizardRegKey, |
| 841 KEY_SET_VALUE); |
| 842 if (error == ERROR_SUCCESS) { |
| 843 // Restore saved value if present. |
| 844 if (nw_category_wizard.HasValue(kNwCategoryWizardSavedRegValue)) { |
| 845 DWORD saved = 0u; |
| 846 error = nw_category_wizard.ReadValueDW(kNwCategoryWizardSavedRegValue, |
| 847 &saved); |
| 848 if (error == ERROR_SUCCESS) { |
| 849 error = nw_category_wizard.WriteValue(kNwCategoryWizardRegValue, |
| 850 saved); |
| 851 error = nw_category_wizard.DeleteValue(kNwCategoryWizardSavedRegValue); |
| 852 } |
| 853 } else if (nw_category_wizard.HasValue(kNwCategoryWizardDeleteRegValue)) { |
| 854 error = nw_category_wizard.DeleteValue(kNwCategoryWizardRegValue); |
| 855 error = nw_category_wizard.DeleteValue(kNwCategoryWizardDeleteRegValue); |
| 856 } |
| 857 } |
| 858 |
| 859 return error; |
| 860 } |
| 861 |
| 862 DWORD WiFiServiceImpl::EnsureInitialized() { |
| 863 DCHECK(CalledOnValidThread()); |
| 864 if (task_runner_ == NULL) |
| 865 task_runner_ = base::MessageLoopProxy::current(); |
| 866 |
| 867 if (client_ != NULL) |
| 868 return ERROR_SUCCESS; |
| 869 return Initialize() ? ERROR_SUCCESS : ERROR_NOINTERFACE; |
| 870 } |
| 871 |
| 872 DWORD WiFiServiceImpl::CloseClientHandle() { |
| 873 DWORD error = ERROR_SUCCESS; |
| 874 if (client_ != NULL) { |
| 875 error = WlanCloseHandle_function_(client_, NULL); |
| 876 client_ = NULL; |
| 877 } |
| 878 if (wlan_api_library_ != NULL) { |
| 879 WlanConnect_function_ = NULL; |
| 880 WlanCloseHandle_function_ = NULL; |
| 881 WlanDisconnect_function_ = NULL; |
| 882 WlanEnumInterfaces_function_ = NULL; |
| 883 WlanFreeMemory_function_ = NULL; |
| 884 WlanGetAvailableNetworkList_function_ = NULL; |
| 885 WlanGetNetworkBssList_function_ = NULL; |
| 886 WlanGetProfile_function_ = NULL; |
| 887 WlanOpenHandle_function_ = NULL; |
| 888 WlanRegisterNotification_function_ = NULL; |
| 889 WlanSaveTemporaryProfile_function_ = NULL; |
| 890 WlanScan_function_ = NULL; |
| 891 ::FreeLibrary(wlan_api_library_); |
| 892 wlan_api_library_ = NULL; |
| 893 } |
| 894 return error; |
| 895 } |
| 896 |
| 897 DOT11_SSID WiFiServiceImpl::SSIDFromGUID( |
| 898 const std::string& network_guid) const { |
| 899 DOT11_SSID ssid = {0}; |
| 900 if (network_guid.length() <= DOT11_SSID_MAX_LENGTH) { |
| 901 ssid.uSSIDLength = network_guid.length(); |
| 902 strncpy(reinterpret_cast<char*>(ssid.ucSSID), |
| 903 network_guid.c_str(), |
| 904 ssid.uSSIDLength); |
| 905 } else { |
| 906 NOTREACHED(); |
| 907 } |
| 908 return ssid; |
| 909 } |
| 910 |
| 911 std::string WiFiServiceImpl::SecurityFromDot11AuthAlg( |
| 912 DOT11_AUTH_ALGORITHM alg) const { |
| 913 switch (alg) { |
| 914 case DOT11_AUTH_ALGO_RSNA: |
| 915 return onc::wifi::kWPA_EAP; |
| 916 case DOT11_AUTH_ALGO_RSNA_PSK: |
| 917 return onc::wifi::kWPA_PSK; |
| 918 case DOT11_AUTH_ALGO_80211_SHARED_KEY: |
| 919 return onc::wifi::kWEP_PSK; |
| 920 case DOT11_AUTH_ALGO_80211_OPEN: |
| 921 return onc::wifi::kNone; |
| 922 default: |
| 923 return onc::wifi::kWPA_EAP; |
| 924 } |
| 925 } |
| 926 |
| 927 void WiFiServiceImpl::NetworkPropertiesFromAvailableNetwork( |
| 928 const WLAN_AVAILABLE_NETWORK& wlan, |
| 929 const WLAN_BSS_LIST& wlan_bss_list, |
| 930 NetworkProperties* properties) { |
| 931 if (wlan.dwFlags & WLAN_AVAILABLE_NETWORK_CONNECTED) { |
| 932 properties->connection_state = onc::connection_state::kConnected; |
| 933 } else { |
| 934 properties->connection_state = onc::connection_state::kNotConnected; |
| 935 } |
| 936 |
| 937 properties->ssid = SSIDFromWLAN(wlan); |
| 938 properties->name = properties->ssid; |
| 939 properties->guid = GUIDFromWLAN(wlan); |
| 940 properties->type = onc::network_type::kWiFi; |
| 941 |
| 942 for (size_t bss = 0; bss < wlan_bss_list.dwNumberOfItems; ++bss) { |
| 943 const WLAN_BSS_ENTRY& bss_entry(wlan_bss_list.wlanBssEntries[bss]); |
| 944 if (bss_entry.dot11Ssid.uSSIDLength == wlan.dot11Ssid.uSSIDLength && |
| 945 0 == memcmp(bss_entry.dot11Ssid.ucSSID, |
| 946 wlan.dot11Ssid.ucSSID, |
| 947 bss_entry.dot11Ssid.uSSIDLength)) { |
| 948 if (bss_entry.ulChCenterFrequency < 3000000) |
| 949 properties->frequency = kFrequency2400; |
| 950 else |
| 951 properties->frequency = kFrequency5000; |
| 952 properties->frequency_list.push_back(properties->frequency); |
| 953 properties->bssid = NetworkProperties::MacAddressAsString( |
| 954 bss_entry.dot11Bssid); |
| 955 } |
| 956 } |
| 957 properties->frequency_list.sort(); |
| 958 properties->frequency_list.unique(); |
| 959 properties->security = |
| 960 SecurityFromDot11AuthAlg(wlan.dot11DefaultAuthAlgorithm); |
| 961 properties->signal_strength = wlan.wlanSignalQuality; |
| 962 } |
| 963 |
| 964 // Get the list of visible wireless networks |
| 965 DWORD WiFiServiceImpl::GetVisibleNetworkList(NetworkList* network_list) { |
| 966 if (client_ == NULL) { |
| 967 NOTREACHED(); |
| 968 return ERROR_NOINTERFACE; |
| 969 } |
| 970 |
| 971 DWORD error = ERROR_SUCCESS; |
| 972 PWLAN_AVAILABLE_NETWORK_LIST available_network_list = NULL; |
| 973 PWLAN_BSS_LIST bss_list = NULL; |
| 974 |
| 975 error = WlanGetAvailableNetworkList_function_( |
| 976 client_, |
| 977 &interface_guid_, |
| 978 WLAN_AVAILABLE_NETWORK_INCLUDE_ALL_MANUAL_HIDDEN_PROFILES, |
| 979 NULL, |
| 980 &available_network_list); |
| 981 |
| 982 std::set<std::string> network_guids; |
| 983 |
| 984 if (error == ERROR_SUCCESS && |
| 985 available_network_list && |
| 986 WlanGetNetworkBssList_function_) { |
| 987 // TODO(mef): WlanGetNetworkBssList is not available on XP. If XP support is |
| 988 // needed, then different method of getting BSS (e.g. OID query) will have |
| 989 // to be used. |
| 990 error = WlanGetNetworkBssList_function_(client_, |
| 991 &interface_guid_, |
| 992 NULL, |
| 993 dot11_BSS_type_any, |
| 994 FALSE, |
| 995 NULL, |
| 996 &bss_list); |
| 997 if (error == ERROR_SUCCESS && NULL != bss_list) { |
| 998 for (DWORD i = 0; i < available_network_list->dwNumberOfItems; ++i) { |
| 999 NetworkProperties network_properties; |
| 1000 NetworkPropertiesFromAvailableNetwork( |
| 1001 available_network_list->Network[i], |
| 1002 *bss_list, |
| 1003 &network_properties); |
| 1004 // Check for duplicate network guids. |
| 1005 if (network_guids.count(network_properties.guid)) { |
| 1006 // There should be no difference between properties except for |
| 1007 // |connection_state|, so mark it as |kConnected| if either one is. |
| 1008 if (network_properties.connection_state == |
| 1009 onc::connection_state::kConnected) { |
| 1010 NetworkList::iterator previous_network_properties = |
| 1011 FindNetwork(*network_list, network_properties.guid); |
| 1012 DCHECK(previous_network_properties != network_list->end()); |
| 1013 previous_network_properties->connection_state = |
| 1014 network_properties.connection_state; |
| 1015 } |
| 1016 } else { |
| 1017 network_list->push_back(network_properties); |
| 1018 } |
| 1019 network_guids.insert(network_properties.guid); |
| 1020 } |
| 1021 } |
| 1022 } |
| 1023 |
| 1024 // clean up |
| 1025 if (available_network_list != NULL) { |
| 1026 WlanFreeMemory_function_(available_network_list); |
| 1027 } |
| 1028 if (bss_list != NULL) { |
| 1029 WlanFreeMemory_function_(bss_list); |
| 1030 } |
| 1031 return error; |
| 1032 } |
| 1033 |
| 1034 // Find currently connected network. |
| 1035 DWORD WiFiServiceImpl::FindConnectedNetwork( |
| 1036 std::string* connected_network_guid) { |
| 1037 if (client_ == NULL) { |
| 1038 NOTREACHED(); |
| 1039 return ERROR_NOINTERFACE; |
| 1040 } |
| 1041 |
| 1042 DWORD error = ERROR_SUCCESS; |
| 1043 PWLAN_AVAILABLE_NETWORK_LIST available_network_list = NULL; |
| 1044 error = WlanGetAvailableNetworkList_function_( |
| 1045 client_, &interface_guid_, 0, NULL, &available_network_list); |
| 1046 |
| 1047 if (error == ERROR_SUCCESS && NULL != available_network_list) { |
| 1048 for (DWORD i = 0; i < available_network_list->dwNumberOfItems; ++i) { |
| 1049 const WLAN_AVAILABLE_NETWORK& wlan = available_network_list->Network[i]; |
| 1050 if (wlan.dwFlags & WLAN_AVAILABLE_NETWORK_CONNECTED) { |
| 1051 *connected_network_guid = GUIDFromWLAN(wlan); |
| 1052 break; |
| 1053 } |
| 1054 } |
| 1055 } |
| 1056 |
| 1057 // clean up |
| 1058 if (available_network_list != NULL) { |
| 1059 WlanFreeMemory_function_(available_network_list); |
| 1060 } |
| 1061 |
| 1062 return error; |
| 1063 } |
| 1064 |
| 1065 DWORD WiFiServiceImpl::Connect(const std::string& network_guid) { |
| 1066 if (client_ == NULL) { |
| 1067 NOTREACHED(); |
| 1068 return ERROR_NOINTERFACE; |
| 1069 } |
| 1070 |
| 1071 DWORD error = ERROR_SUCCESS; |
| 1072 base::string16 profile_name = ProfileNameFromGUID(network_guid); |
| 1073 |
| 1074 if (HaveProfile(network_guid)) { |
| 1075 WLAN_CONNECTION_PARAMETERS wlan_params = { |
| 1076 wlan_connection_mode_profile, |
| 1077 profile_name.c_str(), |
| 1078 NULL, |
| 1079 NULL, |
| 1080 dot11_BSS_type_any, |
| 1081 0}; |
| 1082 error = WlanConnect_function_( |
| 1083 client_, &interface_guid_, &wlan_params, NULL); |
| 1084 } else { |
| 1085 // TODO(mef): wlan_connection_mode_discovery_unsecure is not available on |
| 1086 // XP. If XP support is needed, then temporary profile will have to be |
| 1087 // created. |
| 1088 DOT11_SSID ssid = SSIDFromGUID(network_guid); |
| 1089 WLAN_CONNECTION_PARAMETERS wlan_params = { |
| 1090 wlan_connection_mode_discovery_unsecure, |
| 1091 NULL, |
| 1092 &ssid, |
| 1093 NULL, |
| 1094 dot11_BSS_type_infrastructure, |
| 1095 0}; |
| 1096 error = WlanConnect_function_( |
| 1097 client_, &interface_guid_, &wlan_params, NULL); |
| 1098 } |
| 1099 |
| 1100 return error; |
| 1101 } |
| 1102 |
| 1103 DWORD WiFiServiceImpl::Disconnect() { |
| 1104 if (client_ == NULL) { |
| 1105 NOTREACHED(); |
| 1106 return ERROR_NOINTERFACE; |
| 1107 } |
| 1108 |
| 1109 DWORD error = ERROR_SUCCESS; |
| 1110 error = WlanDisconnect_function_(client_, &interface_guid_, NULL); |
| 1111 return error; |
| 1112 } |
| 1113 |
| 1114 DWORD WiFiServiceImpl::SaveTempProfile(const std::string& network_guid) { |
| 1115 if (client_ == NULL) { |
| 1116 NOTREACHED(); |
| 1117 return ERROR_NOINTERFACE; |
| 1118 } |
| 1119 |
| 1120 DWORD error = ERROR_SUCCESS; |
| 1121 base::string16 profile_name = ProfileNameFromGUID(network_guid); |
| 1122 // TODO(mef): WlanSaveTemporaryProfile is not available on XP. If XP support |
| 1123 // is needed, then different method of saving network profile will have to be |
| 1124 // used. |
| 1125 if (WlanSaveTemporaryProfile_function_) { |
| 1126 error = WlanSaveTemporaryProfile_function_(client_, |
| 1127 &interface_guid_, |
| 1128 profile_name.c_str(), |
| 1129 NULL, |
| 1130 WLAN_PROFILE_USER, |
| 1131 true, |
| 1132 NULL); |
| 1133 } else { |
| 1134 error = ERROR_NOT_SUPPORTED; |
| 1135 } |
| 1136 return error; |
| 1137 } |
| 1138 |
| 1139 DWORD WiFiServiceImpl::GetProfile(const std::string& network_guid, |
| 1140 std::string* profile_xml) { |
| 1141 if (client_ == NULL) { |
| 1142 NOTREACHED(); |
| 1143 return ERROR_NOINTERFACE; |
| 1144 } |
| 1145 |
| 1146 DWORD error = ERROR_SUCCESS; |
| 1147 base::string16 profile_name = ProfileNameFromGUID(network_guid); |
| 1148 LPWSTR str_profile_xml = NULL; |
| 1149 error = WlanGetProfile_function_(client_, |
| 1150 &interface_guid_, |
| 1151 profile_name.c_str(), |
| 1152 NULL, |
| 1153 &str_profile_xml, |
| 1154 NULL, |
| 1155 NULL); |
| 1156 |
| 1157 if (error == ERROR_SUCCESS && str_profile_xml != NULL) { |
| 1158 *profile_xml = base::UTF16ToUTF8(str_profile_xml); |
| 1159 } |
| 1160 // clean up |
| 1161 if (str_profile_xml != NULL) { |
| 1162 WlanFreeMemory_function_(str_profile_xml); |
| 1163 } |
| 1164 |
| 1165 return error; |
| 1166 } |
| 1167 |
| 1168 bool WiFiServiceImpl::HaveProfile(const std::string& network_guid) { |
| 1169 DWORD error = ERROR_SUCCESS; |
| 1170 std::string profile_xml; |
| 1171 return GetProfile(network_guid, &profile_xml) == ERROR_SUCCESS; |
| 1172 } |
| 1173 |
| 1174 void WiFiServiceImpl::NotifyNetworkListChanged(const NetworkList& networks) { |
| 1175 if (network_list_changed_observer_.is_null()) |
| 1176 return; |
| 1177 |
| 1178 NetworkGuidList current_networks; |
| 1179 for (NetworkList::const_iterator it = networks.begin(); |
| 1180 it != networks.end(); |
| 1181 ++it) { |
| 1182 current_networks.push_back(it->guid); |
| 1183 } |
| 1184 network_list_changed_observer_.Run(current_networks); |
| 1185 } |
| 1186 |
| 1187 void WiFiServiceImpl::NotifyNetworkChanged(const std::string& network_guid) { |
| 1188 if (enable_notify_network_changed_ && !networks_changed_observer_.is_null()) { |
| 1189 DLOG(INFO) << "NotifyNetworkChanged: " << network_guid; |
| 1190 NetworkGuidList changed_networks(1, network_guid); |
| 1191 networks_changed_observer_.Run(changed_networks); |
| 1192 } |
| 1193 } |
| 1194 |
| 1195 WiFiService* WiFiService::CreateService() { return new WiFiServiceImpl(); } |
| 1196 |
| 1197 } // namespace wifi |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 27722003:
Windows-specific implementation of Networking Private API. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src