WLAN API应用介绍（含实例程序）
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第一步：打开WLAN服务
bool CWLANConnectDlg::OpenWLANService(){dwResult = WlanOpenHandle(WLAN_API_VERSION //客户端支持的WLAN API的最高版本, NULL, &dwCurVersion //指定这次会话中将会使用的版本, &hClient //指定客户端在这次会话中使用的句柄，这个句柄会贯穿整个会话被其他函数使用 。); if(ERROR_SUCCESS != dwResult) { switch (dwResult) { case ERROR_INVALID_PARAMETER: //参数一、四为空或参数二不为空 wprintf(L"Para is NULL\n"); break; case ERROR_NOT_ENOUGH_MEMORY: //没有足够的内存空间 wprintf(L"Failed to allocate memory \n"); break; case ERROR_REMOTE_SESSION_LIMIT_EXCEEDED: //超过服务器限定的句柄数量 wprintf(L"Server is Busy\n"); break; default: dwResult = GetLastError(); wprintf(L"WlanOpenHandle Fail：%wd\n", dwResult); break; }return false; }return true;}第二步：枚举处当前系统安装的所有无线网卡的接口信息。
WLAN_INTERFACE_INFO_LIST
typedef struct _WLAN_INTERFACE_INFO_LIST { DWORD dwNumberOfItems; DWORD dwIndex; WLAN_INTERFACE_INFO InterfaceInfo[];
} WLAN_INTERFACE_INFO_LIST,*PWLAN_INTERFACE_INFO_LIST;
bool WLANNetwork(){dwResult = WlanEnumInterfaces(hClient //客户端会话句柄。由 WlanOpenHandle 得到。, NULL, &pInterfaceList //指向包含无线网卡接口信息list的结构体 PWLAN_INTERFACE_INFO_LIST 的指针。); if(ERROR_SUCCESS != dwResult) { switch (dwResult) { case ERROR_INVALID_PARAMETER: //参数一、三为空，或参数二不为空 wprintf(L"Para is NULL\n"); break; case ERROR_INVALID_HANDLE: //无效的句柄 wprintf(L"Failed to INVALID HANDLE \n"); break; case ERROR_NOT_ENOUGH_MEMORY: //没有足够的内存空间 wprintf(L"Failed to allocate memory \n"); break; default: dwResult = GetLastError(); wprintf(L"WlanEnumInterfaces Fail： %wd\n", dwResult); break; }return false; }wprintf(L"WlanEnumInterfaces Number %wd\n", pInterfaceList->dwNumberOfItems); //输出网卡数量return true;}第三步：搜索接口上可用的网络。
WLAN_AVAILABLE_NETWORK_LIST
结构体，包含可用网络（network）的信息的列表。
typedef struct _WLAN_AVAILABLE_NETWORK_LIST { DWORD dwNumberOfItems; DWORD dwIndex; WLAN_AVAILABLE_NETWORK Network[1]; } WLAN_AVAILABLE_NETWORK_LIST,*PWLAN_AVAILABLE_NETWORK_LIST;
dwNumberOfItems ：Network中包含的单元的个数
dwIndex ：当前单元的索引，从０开始到dwNumberOfItems－１；
当这个结构体作为参数时用到。用之前必须赋初值。
Network ：一个WLAN_AVAILABLE_NETWORK 的列表，包含接口信息。
WLAN_AVAILABLE_NETWORK
结构体，包含可用无线网络（network）单元的信息。
typedef struct _WLAN_AVAILABLE_NETWORK { WCHAR strProfileName[256]; DOT11_SSID dot11Ssid; ／／ＳＳＩＤ DOT11_BSS_TYPE dot11BssType; ULONG uNumberOfBssids; BOOL bNetworkConnectable; WLAN_REASON_CODE wlanNotConnectableReason ULONG uNumberOfPhyTypes; DOT11_PHY_TYPE dot11PhyTypes[WLAN_MAX_PHY_TYPE_NUMBER]; BOOL bMorePhyTypes; WLAN_SIGNAL_QUALITY wlanSignalQuality; //信号强度 BOOL bSecurityEnabled; DOT11_AUTH_ALGORITHM dot11DefaultAuthAlgorithm ; DOT11_CIPHER_ALGORITHM dot11DefaultCipherAlgorithm ; DWORD dwFlags; DWORD dwReserved; } WLAN_AVAILABLE_NETWORK,
*PWLAN_AVAILABLE_NETWORK;
DOT11_BSS_TYPE
枚举类型，用于定义BSS网络的类型
typedef
dot11_BSS_type_infrastructure : 为 infrastructure BSS 网络。
dot11_BSS_type_independent ：为independent BSS网络
dot11_BSS_type_any ：是 infrastructure 或者 independent BSS网络
infrastructure BSS：
中控型基本服务集 （BSS）是一个包含了一个接入点和一些站点的 802.11 网络。这个接入点将信息送入目标站点或者一个固定网络。
independent BSS：
IBSS(Independent Basic Service Set) 独立基本服务集 。是一种无线拓扑结构,IEEE802.11标准的模式
bool SearchNet(){ if (!OpenWLANService()) { return false; } if (!WLANNetwork()) { return false; } for(nInterfaceNumber = 0; nInterfaceNumber < (int)pInterfaceList->dwNumberOfItems; nInterfaceNumber++) { /*获取网卡信息*/ pInterface = (PWLAN_INTERFACE_INFO)&pInterfaceList->InterfaceInfo[nInterfaceNumber]; /*获得网络信息列表*/ dwResult = WlanGetAvailableNetworkList(hClient //客户端的会话句柄, &pInterface->InterfaceGuid //要搜索的接口的GUID, 0x00 //控制list中返回的网络的类型，XP SP2和SP3为零, NULL, &pNetList //指向返回的可用网络的 WLAN_AVAILABLE_NETWORK_LIST 的指针); if(ERROR_SUCCESS != dwResult) { switch (dwResult) { case ERROR_INVALID_PARAMETER: //参数四不为空，或其他参数为空 wprintf(L"Para is NULL\n"); break; case ERROR_INVALID_HANDLE: wprintf(L"Failed to INVALID HANDLE \n"); break; case ERROR_NOT_ENOUGH_MEMORY: wprintf(L"Failed to allocate memory \n"); break; case ERROR_NDIS_DOT11_POWER_STATE_INVALID: //广播关闭无法搜索 wprintf(L"The radio for the interface is turned off \n"); break; default: dwResult = GetLastError(); wprintf(L"WlanGetAvailableNetworkList Fail： %wd\n", dwResult); break; }return false; } wprintf(L"WlanGetAvailableNetworkList Number %wd\n", pNetList->dwNumberOfItems); //输出网络数量 /*连接网络*/bool resultSearch = true; for(nNetNumber = 0; nNetNumber < pNetList->dwNumberOfItems; nNetNumber++) { /*获取网络信息，去重复*/ pNet = (PWLAN_AVAILABLE_NETWORK)&pNetList->Network[nNetNumber]; if (strcmp(target.c_str(),(char*)pNet->dot11Ssid.ucSSID) || !resultSearch){continue;}resultSearch = false;if (!SetProfile()){return false;}if (!WLANConnect()){return false;} } /*释放网络信息列表*/ if (NULL != pNetList) { WlanFreeMemory(pNetList); pNetList = NULL; } } /*释放网卡信息列表*/ if(NULL != pInterfaceList) { WlanFreeMemory(pInterfaceList); pInterfaceList = NULL; } printf("SUCESS\n"); return true;}
第四步：设置用户文件Profile
bool SetProfile(){ string szProfileXML(""); //Profile XML流wscProfileXML = NULL;/*组合参数XML码流*/ string szTemp("");// char p[1024]; /*头*/ szProfileXML += string("<?xml version=\"1.0\"?><WLANProfile xmlns=\"http://www.microsoft.com/networking/WLAN/profile/v1\"><name>"); /*name，一般与SSID相同*/szTemp = string((char*)pNet->dot11Ssid.ucSSID); //配置文件名 szProfileXML += szTemp; /*SSIDConfig*/ szProfileXML += string("</name><SSIDConfig><SSID><name>");szProfileXML += szTemp; //已搜索到的网络对应的SSIDszProfileXML += string("</name></SSID></SSIDConfig>");/*connectionType*/szProfileXML += string("<connectionType>");switch(pNet->dot11BssType) //网络类型 { case dot11_BSS_type_infrastructure: szProfileXML += "ESS"; break; case dot11_BSS_type_independent: szProfileXML += "IBSS"; break; case dot11_BSS_type_any: szProfileXML += "Any"; break; default: wprintf(L"Unknown BSS type"); return false; }/*MSM*/szProfileXML += string("</connectionType><MSM><security><authEncryption><authentication>");switch( pNet->dot11DefaultAuthAlgorithm) //网络加密方式 { case DOT11_AUTH_ALGO_80211_OPEN: szProfileXML += "open";wprintf(L"Open 802.11 authentication\n"); break; case DOT11_AUTH_ALGO_80211_SHARED_KEY:szProfileXML += "shared"; wprintf(L"Shared 802.11 authentication"); break; case DOT11_AUTH_ALGO_WPA:szProfileXML += "WPA"; wprintf(L"WPA-Enterprise 802.11 authentication\n"); break; case DOT11_AUTH_ALGO_WPA_PSK:szProfileXML += "WPAPSK"; wprintf(L"WPA-Personal 802.11 authentication\n"); break; case DOT11_AUTH_ALGO_WPA_NONE:szProfileXML += "none"; wprintf(L"WPA-NONE,not exist in MSDN\n"); break; case DOT11_AUTH_ALGO_RSNA:szProfileXML += "WPA2"; wprintf(L"WPA2-Enterprise 802.11 authentication\n"); break; case DOT11_AUTH_ALGO_RSNA_PSK:szProfileXML += "WPA2PSK"; wprintf(L"WPA2-Personal 802.11 authentication\n"); break; default: wprintf(L"Unknown authentication"); return false; }szProfileXML += string("</authentication><encryption>");/*sprintf(p, "%d", pNet->dot11DefaultCipherAlgorithm);szProfileXML += string(p);*/switch(pNet->dot11DefaultCipherAlgorithm) { case DOT11_CIPHER_ALGO_NONE: szProfileXML += "none"; break; case DOT11_CIPHER_ALGO_WEP40: szProfileXML += "WEP"; break; case DOT11_CIPHER_ALGO_TKIP: szProfileXML += "TKIP"; break; case DOT11_CIPHER_ALGO_CCMP: szProfileXML += "AES"; break; case DOT11_CIPHER_ALGO_WEP104: szProfileXML += "WEP"; break; case DOT11_CIPHER_ALGO_WEP: szProfileXML += "WEP"; break; case DOT11_CIPHER_ALGO_WPA_USE_GROUP:wprintf(L"USE-GROUP not exist in MSDN"); default: wprintf(L"Unknown encryption");return false; }//szProfileXML += string("</encryption><useOneX>false</useOneX></authEncryption></security></MSM>"); //如果加密方式为WEP，keyType必须改为networkKeyszProfileXML += string("</encryption></authEncryption><sharedKey><keyType>passPhrase</keyType><protected>false</protected><keyMaterial>");szProfileXML += targetKey;/*尾*/szProfileXML += string("</keyMaterial></sharedKey></security></MSM></WLANProfile>");/*XML码流转换成双字节*/wscProfileXML = StringToLPCWSTR(szProfileXML);if(NULL == wscProfileXML){wprintf(L"Change wscProfileXML fail\n");return false;} /*设置网络参数*/ dwResult = WlanSetProfile(hClient, &pInterface->InterfaceGuid, 0x00 //设置用户文件类型, wscProfileXML //用户文件内容, NULL //在XP SP1和SP2下必须为NULL, FALSE //是否覆盖已存在的用户文件, NULL //在XP SP1和SP2下必须为NULL, &dwReasonCode); if(ERROR_SUCCESS != dwResult) { switch (dwResult) { case ERROR_INVALID_PARAMETER: //参数一、二、四、八为空或在XP SP1和SP2下参数三不为0 wprintf(L"Para is NULL\n"); break; case ERROR_NO_MATCH: //网络接口不支持的加密类型 wprintf(L"NIC NOT SUPPORT\n"); break; case ERROR_NOT_ENOUGH_MEMORY: //没有足够的内存空间 wprintf(L"Failed to allocate memory \n"); break; case ERROR_BAD_PROFILE: //用户文件格式错误 wprintf(L"The profile specified by strProfileXml is not valid \n"); break; case ERROR_ALREADY_EXISTS: //设置的用户文件已存在 wprintf(L"strProfileXml specifies a network that already exists \n"); break; case ERROR_ACCESS_DENIED: //用户没有权限设置用户文件 wprintf(L"The caller does not set the profile. \n"); break; default: dwResult = GetLastError(); wprintf(L"WlanSetProfile Fail： %wd\n", dwResult); break; }if (dwResult != 183){return false;} }return true;}第五步：连接一个指定的网络
WLAN_CONNECTION_PARAMETERS
在使用WlanConnect 这个函数的时候，这个结构体需要作为参数来设定连接属性。
typedef struct _WLAN_CONNECTION_PARAMETERS { WLAN_CONNECTION_MODE wlanConnectionMode; LPCWSTR strProfile; PDOT11_SSID pDot11Ssid; PDOT11_BSSID_LIST pDesiredBssidList; DOT11_BSS_TYPE dot11BssType; DWORD dwFlags; } WLAN_CONNECTION_PARAMETERS,*PWLAN_CONNECTION_PARAMETERS;
bool WLANConnect(){pConnPara = (PWLAN_CONNECTION_PARAMETERS)calloc(1, sizeof(WLAN_CONNECTION_PARAMETERS)); /*设置网络连接参数*/ if(NULL == pConnPara) { wprintf(L"pConnPara fail\n"); }pConnPara->wlanConnectionMode = (WLAN_CONNECTION_MODE)0; //XP SP2,SP3 must be 0pConnPara->strProfile = StringToLPCWSTR(target); //指定的用户文件pConnPara->pDot11Ssid = &pNet->dot11Ssid; //指定的SSIDpConnPara->pDesiredBssidList = NULL; //XP SP2,SP3 must be NULLpConnPara->dot11BssType = pNet->dot11BssType; //网络类型pConnPara->dwFlags = 0x00000000; //XP SP2,SP3 must be 0 dwResult = WlanConnect(hClient //客户端句柄, &pInterface->InterfaceGuid //连接使用的接口的GUID, pConnPara //指向结构体 WLAN_CONNECTION_PARAMETERS ，其中指定了连接类型，模式，网络概况，SSID 等其他参数。, NULL); if(ERROR_SUCCESS != dwResult) { switch (dwResult) { case ERROR_INVALID_PARAMETER: wprintf(L"Para is NULL\n"); break; case ERROR_INVALID_HANDLE: wprintf(L"Failed to INVALID HANDLE \n"); break; case ERROR_ACCESS_DENIED: wprintf(L"The caller does not have sufficient permissions. \n"); break; default: dwResult = GetLastError(); wprintf(L"WlanConnect Fail： %wd\n", dwResult); break; }return false; }return true;}第六步：断开网络连接
bool WLANDisconnect(){ dwResult = WlanDisconnect(hClient, &pInterface->InterfaceGuid, NULL); if(ERROR_SUCCESS != dwResult) { switch (dwResult) { case ERROR_INVALID_PARAMETER: //参数一、二为空 wprintf(L"Para is NULL\n"); break; case ERROR_INVALID_HANDLE: wprintf(L"Failed to INVALID HANDLE \n"); break; case ERROR_NOT_ENOUGH_MEMORY: wprintf(L"Failed to allocate memory \n"); break; case ERROR_ACCESS_DENIED: wprintf(L"The caller does not have sufficient permissions. \n"); break; default: dwResult = GetLastError(); wprintf(L"WlanConnect Fail： %wd\n", dwResult); break; }if (pProfileXml != NULL) {WlanFreeMemory(pProfileXml);//所有API用到的参数，都要使用API提供的函数去释放pProfileXml = NULL;} free(pConnPara);return false; }return true;}第七步：关闭与服务器间的连接
bool CloseWLANService(){ if(NULL != hClient) { dwResult = WlanCloseHandle(hClient //要关闭的连接的客户端句柄, NULL); if(ERROR_SUCCESS != dwResult) { switch (dwResult) { case ERROR_INVALID_PARAMETER: //参数一为空或参数二不为空 wprintf(L"Para is NULL\n"); break; case ERROR_INVALID_HANDLE: wprintf(L"Failed to INVALID HANDLE \n"); break; default: dwResult = GetLastError(); wprintf(L"WlanCloseHandle Fail： %wd\n", dwResult); break; }return false; } hClient = NULL; } return true;}
附加：
查询网卡连接状态，每次查询都必须使用WlanEnumInterfaces获得新的网卡列表。
PWLAN_INTERFACE_INFO_LIST pIfList = NULL; PWLAN_INTERFACE_INFO pIfInfo = NULL; dwResult = WlanEnumInterfaces(hClient, NULL, &pIfList); if (dwResult != ERROR_SUCCESS) { wprintf(L"WlanEnumInterfaces failed with error: %u\n", dwResult); // FormatMessage can be used to find out why the function failed return 1; } pIfInfo = (WLAN_INTERFACE_INFO *) &pIfList->InterfaceInfo[0]; switch (pIfInfo->isState) { case wlan_interface_state_not_ready: wprintf(L"Not ready\n"); break; case wlan_interface_state_connected: wprintf(L"Connected\n"); break; case wlan_interface_state_ad_hoc_network_formed: wprintf(L"First node in a ad hoc network\n"); break; case wlan_interface_state_disconnecting: wprintf(L"Disconnecting\n"); break; case wlan_interface_state_disconnected: wprintf(L"Not connected\n"); break; case wlan_interface_state_associating: wprintf(L"Attempting to associate with a network\n"); break; case wlan_interface_state_discovering: wprintf(L"Auto configuration is discovering settings for the network\n"); break; case wlan_interface_state_authenticating: wprintf(L"In process of authenticating\n"); break; default: wprintf(L"Unknown state %ld\n", pIfInfo->isState); break; }CSDN源码：
WLAN控制台程序
WLAN图形界面操作程序
PUDN源码：
WLAN控制台程序
WLAN图形界面操作程序
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