时间戳

首页 > 解决方案 > 如何通过bssid连接wifi网络

c# - 如何通过bssid连接wifi网络

问题描述

我想连接到 wifi 并根据 BSSID 选择 AP。Windows 上存在 SSID 的 Wifi 配置文件。有多个具有相同 SSID 的 AP。

在CodePlex上找到了 ManagedWifi 的示例代码。

我添加了基于此 描述所需的连接和所有额外原型的重载函数。

该函数运行没有错误，但未连接到指定的 BSSID。有人知道我错过了什么吗？

public void Connect(string Bssid, string Ssid)
{
    byte[] desBssid = Bssid.Split(':').Select(x => Convert.ToByte(x, 16)).ToArray();

    Wlan.NDIS_OBJECT_HEADER ndoh;
    ndoh.Type = Wlan.NDIS_OBJECT_TYPE_DEFAULT;
    ndoh.Revision = Wlan.DOT11_BSSID_LIST_REVISION_1;
    ndoh.Size = (ushort)System.Runtime.InteropServices.Marshal.SizeOf(typeof(Wlan.DOT11_BSSID_LIST));

    Wlan.DOT11_BSSID_LIST desBssidList = new Wlan.DOT11_BSSID_LIST();
    desBssidList.Header = ndoh;
    desBssidList.uNumOfEntries = 1;
    desBssidList.uTotalNumOfEntries = 1;
    Wlan.DOT11_MAC_ADDRESS bssid = new Wlan.DOT11_MAC_ADDRESS();
    bssid.Dot11MacAddress = desBssid;
    desBssidList.BSSIDs = new Wlan.DOT11_MAC_ADDRESS[1];
    desBssidList.BSSIDs[0] = bssid;

    IntPtr desBssidListPtr = Marshal.AllocHGlobal(Marshal.SizeOf(desBssidList));
    Marshal.StructureToPtr(desBssidList, desBssidListPtr, false);


    Wlan.DOT11_SSID dot11Ssid = new Wlan.DOT11_SSID();
    dot11Ssid.ucSSID =  Ssid; 
    dot11Ssid.uSSIDLength = (uint)dot11Ssid.ucSSID.Length;

    IntPtr dot11SsidPtr = Marshal.AllocHGlobal(Marshal.SizeOf(dot11Ssid));
    Marshal.StructureToPtr(dot11Ssid, dot11SsidPtr, false);


    Wlan.WlanConnectionParameters connectionParams = new Wlan.WlanConnectionParameters();
    connectionParams.wlanConnectionMode = Wlan.WlanConnectionMode.DiscoveryUnsecure;
    connectionParams.profile = null;
    connectionParams.dot11SsidPtr = dot11SsidPtr;
    connectionParams.dot11BssType = Wlan.Dot11BssType.Infrastructure;
    connectionParams.flags = 0;
    connectionParams.desiredBssidListPtr = desBssidListPtr;
    Connect(connectionParams);
}

关于连接失败的日志：

Message              : WLAN AutoConfig service failed to connect to a wireless network.

                       Network Adapter: Intel(R) Dual Band Wireless-AC 7260
                       Interface GUID: {b081a2ec-8010-4c13-be59-251a69dd12ae}
                       Connection Mode: Connection to an unsecure network without a profile
                       Profile Name: <ssid of APs>
                       SSID: <ssid of APs>
                       BSS Type: Infrastructure
                       Failure Reason:The specific network is not available.
                       RSSI: 255

Id                   : 8002
Version              : 0
Qualifiers           :
Level                : 2
Task                 : 24010
Opcode               : 191
Keywords             : -9223372036317903360
RecordId             : 1151
ProviderName         : Microsoft-Windows-WLAN-AutoConfig
ProviderId           : 9580d7dd-0379-4658-9870-d5be7d52d6de
LogName              : Microsoft-Windows-WLAN-AutoConfig/Operational
ProcessId            : 4000
ThreadId             : 564
MachineName          : <machine name>
UserId               : S-1-5-18
TimeCreated          : 22/06/2019 11:30:41
ActivityId           :
RelatedActivityId    :
ContainerLog         : Microsoft-Windows-WLAN-AutoConfig/Operational
MatchedQueryIds      : {}
Bookmark             : System.Diagnostics.Eventing.Reader.EventBookmark
LevelDisplayName     : Error
OpcodeDisplayName    : Failure
TaskDisplayName      : AcmConnection
KeywordsDisplayNames : {}
Properties           : {System.Diagnostics.Eventing.Reader.EventProperty, System.Diagnostics.Eventing.Reader.EventProperty, System.Diagnostics.Eventing.Reader.EventProperty,
                       System.Diagnostics.Eventing.Reader.EventProperty...}

标签： c#windowswifi

解决方案

Castorix 是对的。当指定 mac 时，仍然可以使用基于配置文件的连接模式。

查看修改后的代码：

public void Connect(string Bssid, string Ssid, string Pwd)
{
    byte[] desBssid = Bssid.Split(':').Select(x => Convert.ToByte(x, 16)).ToArray();

    Wlan.NDIS_OBJECT_HEADER ndoh;
    ndoh.Type = Wlan.NDIS_OBJECT_TYPE_DEFAULT;
    ndoh.Revision = Wlan.DOT11_BSSID_LIST_REVISION_1;
    ndoh.Size = (ushort)System.Runtime.InteropServices.Marshal.SizeOf(typeof(Wlan.DOT11_BSSID_LIST));

    Wlan.DOT11_BSSID_LIST desBssidList = new Wlan.DOT11_BSSID_LIST();
    desBssidList.Header = ndoh;
    desBssidList.uNumOfEntries = 1;
    desBssidList.uTotalNumOfEntries = 1;
    Wlan.DOT11_MAC_ADDRESS bssid = new Wlan.DOT11_MAC_ADDRESS();
    bssid.Dot11MacAddress = desBssid;
    desBssidList.BSSIDs = new Wlan.DOT11_MAC_ADDRESS[1];
    desBssidList.BSSIDs[0] = bssid;

    IntPtr desBssidListPtr = Marshal.AllocHGlobal(Marshal.SizeOf(desBssidList));
    Marshal.StructureToPtr(desBssidList, desBssidListPtr, false);


    Wlan.DOT11_SSID dot11Ssid = new Wlan.DOT11_SSID();
    dot11Ssid.ucSSID =  Ssid; 
    dot11Ssid.uSSIDLength = (uint)dot11Ssid.ucSSID.Length;

    IntPtr dot11SsidPtr = Marshal.AllocHGlobal(Marshal.SizeOf(dot11Ssid));
    Marshal.StructureToPtr(dot11Ssid, dot11SsidPtr, false);

    string profileXml = string.Format("<?xml version=\"1.0\"?><WLANProfile xmlns=\"http://www.microsoft.com/networking/WLAN/profile/v1\"><name>{0}</name><SSIDConfig><SSID><name>{0}</name></SSID></SSIDConfig><connectionType>ESS</connectionType><connectionMode>auto</connectionMode><MSM><security><authEncryption><authentication>WPA2PSK</authentication><encryption>AES</encryption><useOneX>false</useOneX></authEncryption><sharedKey><keyType>passPhrase</keyType><protected>false</protected><keyMaterial>{1}</keyMaterial></sharedKey></security></MSM></WLANProfile>", Ssid, Pwd);
    SetProfile(Wlan.WlanProfileFlags.AllUser, profileXml, true);

    Wlan.WlanConnectionParameters connectionParams = new Wlan.WlanConnectionParameters();
    connectionParams.wlanConnectionMode = Wlan.WlanConnectionMode.Profile;
    connectionParams.profile = Ssid;
    connectionParams.dot11SsidPtr = dot11SsidPtr;
    connectionParams.dot11BssType = Wlan.Dot11BssType.Any;
    connectionParams.flags = 0;
    connectionParams.desiredBssidListPtr = desBssidListPtr;
    Connect(connectionParams);

}

推荐阅读