private void AddPingResult(HavokNet.Protocols.ICMP.PingResult result)
{
this.Dispatcher.Invoke(() =>
{
echoReplies.Items.Add(result.ToString());
});
}
public override void OnReceivePacket(Common.PacketData pdata)
{
var packet = pdata.Packet;
var fromIP = new Common.IPv4Address(packet.Ethernet.IpV4.Source.ToString());
var toIP = new Common.IPv4Address(packet.Ethernet.IpV4.Destination.ToString());
var ipv4 = packet.Ethernet.IpV4;
var icmp = ipv4.Icmp;
// Is this an echo request to our IP?
if (icmp.MessageType == PcapDotNet.Packets.Icmp.IcmpMessageType.Echo && toIP.AsString == _client.Configuration.IpAddress.AsString)
{
SendIcmpReplyPacket(packet);
}
else if (icmp.MessageType == IcmpMessageType.EchoReply && CurrentPings.ContainsKey((packet.Ethernet.IpV4.Icmp as IcmpEchoReplyDatagram).Identifier))
{
var reply = packet.Ethernet.IpV4.Icmp as IcmpEchoReplyDatagram;
var request = CurrentPings[reply.Identifier];
PingResult result = new PingResult(packet, pdata.TimeStamp, request);
result.Bytes = request.Bytes;
request.Callback(result);
}
else if (icmp.MessageType == IcmpMessageType.TimeExceeded)
{
var reply = packet.Ethernet.IpV4.Icmp as IcmpTimeExceededDatagram;
var replyEcho = reply.IpV4.Icmp as IcmpEchoDatagram;
var request = CurrentPings[replyEcho.Identifier];
PingResult result = new PingResult(PingResultType.TtlExpired);
result.RespondingHost = fromIP;
result.Response = (int)(DateTime.Now - request.TimeStamp).TotalMilliseconds;
request.Callback(result);
}
else if (icmp.MessageType == IcmpMessageType.DestinationUnreachable)
{
var reply = packet.Ethernet.IpV4.Icmp as IcmpDestinationUnreachableDatagram;
var replyEcho = reply.IpV4.Icmp as IcmpDestinationUnreachableDatagram;
//var request = CurrentPings[replyEcho.Identifier];
//PingResult result = new PingResult(PingResultType.DestinationHostUnreachable);
//result.RespondingHost = fromIP;
//result.Response = (int)(DateTime.Now - request.TimeStamp).TotalMilliseconds;
//request.Callback(result);
}
}
