private void AnalyzeTCP(Packet p)
{
if (!(p.PayloadPacket.PayloadPacket is TcpPacket))
return;
EthernetPacket ethernet = (EthernetPacket)p;
IpPacket ip = (IpPacket)p.PayloadPacket;
TcpPacket tcp = (TcpPacket)p.PayloadPacket.PayloadPacket;
Neighbor neighbor = null;
if (tcp.Syn && tcp.Ack)
{
neighbor = Program.CurrentProject.data.GetNeighbor(ethernet.SourceHwAddress);
if (neighbor == null)
return;
if (neighbor.ExistsIP(ip.SourceAddress))
{
Port port = new Port(tcp.SourcePort, Protocol.TCP, ip.SourceAddress);
if (!(neighbor.ExistsPort(port)))
{
neighbor.AddPort(port);
Program.CurrentProject.data.AddNeighbor(neighbor);
}
}
else
return;
}
}
public void AddPort(Port port)
{
if (ExistsPort(port))
return;
ports.Add(port);
}
public bool ExistsPort(Port port)
{
foreach (Port p in ports)
{
if (p.port == port.port && p.protocol == port.protocol && p.ip.Equals(port.ip))
return true;
}
return false;
}