public static WLAN_BSS_ENTRY[] GetNetworkBssEntryList(SafeClientHandle clientHandle, Guid interfaceId, DOT11_SSID ssid, DOT11_BSS_TYPE bssType, bool isSecurityEnabled)
{
var queryData = IntPtr.Zero;
var wlanBssList = IntPtr.Zero;
try
{
queryData = Marshal.AllocHGlobal(Marshal.SizeOf(ssid));
Marshal.StructureToPtr(ssid, queryData, false);
var result = WlanGetNetworkBssList(
clientHandle,
interfaceId,
queryData,
bssType,
isSecurityEnabled,
IntPtr.Zero,
out wlanBssList);
// ERROR_NDIS_DOT11_POWER_STATE_INVALID will be returned if the interface is turned off.
return(CheckResult(nameof(WlanGetNetworkBssList), result, false)
? new WLAN_BSS_LIST(wlanBssList).wlanBssEntries
: new WLAN_BSS_ENTRY[0]);
}
finally
{
Marshal.FreeHGlobal(queryData);
if (wlanBssList != IntPtr.Zero)
{
WlanFreeMemory(wlanBssList);
}
}
}
internal NetworkIdentifier(DOT11_SSID ssid) : this(ssid.ToBytes(), ssid.ToString())
{
}
public static string ConvertToString(this DOT11_SSID ssid)
{
return(ssid.ucSSID);
}
/// <summary>
/// Retrieves a list of the basic service set (BSS) entries of the wireless network or networks from specified the SSID on a given wireless LAN interface.
/// </summary>
/// <param name="clientHandle"></param>
/// <param name="interfaceId"></param>
/// <param name="ssid"></param>
/// <param name="bssType">dot11_BSS_type_infrastructure or dot11_BSS_type_independent</param>
/// <returns></returns>
public static IEnumerable <WLAN_BSS_ENTRY> GetNetworkBssEntryList(SafeClientHandle clientHandle, Guid interfaceId, DOT11_SSID ssid, DOT11_BSS_TYPE bssType)
{
IntPtr ssidPtr = Marshal.AllocHGlobal(Marshal.SizeOf(ssid));
Marshal.StructureToPtr(ssid, ssidPtr, false);
var wlanBssList = IntPtr.Zero;
try
{
var result = WlanGetNetworkBssList(
clientHandle,
interfaceId,
ssidPtr,
bssType,
true, //must true
IntPtr.Zero,
out wlanBssList);
// ERROR_NDIS_DOT11_POWER_STATE_INVALID will be returned if the interface is turned off.
return(CheckResult(nameof(WlanGetNetworkBssList), result, false)
? new WLAN_BSS_LIST(wlanBssList).wlanBssEntries
: new WLAN_BSS_ENTRY[0]);
}
finally
{
if (wlanBssList != IntPtr.Zero)
{
WlanFreeMemory(wlanBssList);
}
}
}
