public static IList <NetworkInterfaceInfo> GetInterfaces()
{
var nicInfos = new List <NetworkInterfaceInfo>();
var nics = NetworkInterface.GetAllNetworkInterfaces();
foreach (var nic in nics)
{
var ipAddresses = nic.GetIPProperties().UnicastAddresses.Where(x =>
x.Address != null && x.Address.AddressFamily == AddressFamily.InterNetwork);
foreach (var ipAddress in ipAddresses)
{
var nicInfo = new NetworkInterfaceInfo
{
Index = nicInfos.Count,
Id = nic.Id,
Name = nic.Name,
IPAddress = ipAddress.Address
};
nicInfos.Add(nicInfo);
}
}
return(nicInfos);
}
public SocketSniffer(NetworkInterfaceInfo nic, Filters <IPPacket> filters, IOutput output)
{
this.outputQueue = new BlockingCollection <TimestampedData>();
this.filters = filters;
this.output = output;
this.bufferManager = new BufferManager(BUFFER_SIZE, MAX_RECEIVE);
this.receivePool = new ConcurrentStack <SocketAsyncEventArgs>();
var endPoint = new IPEndPoint(nic.IPAddress, 0);
// Capturing at the IP level is not supported on Linux
// https://github.com/dotnet/corefx/issues/25115
// https://github.com/dotnet/corefx/issues/30197
var protocolType = ProtocolType.IP;
// IPv4
this.socket = new Socket(AddressFamily.InterNetwork, SocketType.Raw, protocolType);
this.socket.Bind(endPoint);
this.socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.HeaderIncluded, true);
// Enter promiscuous mode on Windows only
EnterPromiscuousMode();
}
