public static void SetInterfaceAddress(string interfaceName, string address, bool isMask)
{
var ifReq = new InterfaceRequestWithAddress();
var sockAddrIn = new SockAddrIn();
sockAddrIn.sin_family = IO.AF_INET;
IO.Inet_pton(IO.AF_INET, address.ToString(), ref sockAddrIn.sin_addr);
IntPtr sockAddrInPtr = Marshal.AllocHGlobal(Marshal.SizeOf(sockAddrIn));
Marshal.StructureToPtr(sockAddrIn, sockAddrInPtr, true);
var sockAddr = Marshal.PtrToStructure <SockAddr>(sockAddrInPtr);
Marshal.FreeHGlobal(sockAddrInPtr);
ifReq.ifrn_name = interfaceName;
ifReq.if_addr = sockAddr;
using var socketFileDescriptor = IO.Socket(IO.AF_INET, IO.SOCK_DGRAM, IO.IPPROTO_IP);
var request = isMask ? IO.SIOCSIFNETMASK : IO.SIOCSIFADDR;
// Remove IPv6 address
IO.IOCtl(socketFileDescriptor, request, ref ifReq);
var p = new Process();
p.StartInfo = new ProcessStartInfo
{
UseShellExecute = false,
RedirectStandardOutput = true,
FileName = "ip",
Arguments = $"-6 addr flush {interfaceName}"
};
p.Start();
}
internal static SockAddr ToSockAddr(this IPEndPoint endPoint)
{
var sockAddrIn = new SockAddrIn();
sockAddrIn.sin_family = IO.AF_INET;
sockAddrIn.sin_port = (ushort)IPAddress.HostToNetworkOrder((short)endPoint.Port);
IO.Inet_pton(IO.AF_INET, endPoint.Address.ToString(), ref sockAddrIn.sin_addr);
IntPtr sockAddrInPtr = Marshal.AllocHGlobal(Marshal.SizeOf(sockAddrIn));
Marshal.StructureToPtr(sockAddrIn, sockAddrInPtr, true);
var sockAddr = Marshal.PtrToStructure <SockAddr>(sockAddrInPtr);
Marshal.FreeHGlobal(sockAddrInPtr);
return(sockAddr);
}