private int searchMac(LinkedList <WpfApplication1.MacTable> tabulka, String hladanaMac, int portNumber)
{
foreach (var i in tabulka)
{
if (i.sourceMac.Equals(hladanaMac))
{
i.port = portNumber;
i.timer = timeInTimer;
this.pomNode = i;
return(1);
}
}
return(0);
}
private void device_OnPacketArrival1(object sender, CaptureEventArgs packet)
{
int portNumber = -1;
if (((WinPcapDevice)packet.Device).MacAddress == this.dev1.MacAddress)
{
// System.Diagnostics.Trace.WriteLine("I am port 1");
portNumber = 1;
}
else
{
// System.Diagnostics.Trace.WriteLine("I am port 2");
portNumber = 2;
}
String data = packet.Packet.ToString();
var packet2 = PacketDotNet.Packet.ParsePacket(packet.Packet.LinkLayerType, packet.Packet.Data);
var ethernetPacket = (PacketDotNet.EthernetPacket)packet2;
if (ethernetPacket != null)
{
lock (locker)
{
// countIn1++;
// print source mac address on standard output - works
// System.Diagnostics.Trace.WriteLine(ethernetPacket.Type.ToString());
var lldp = (PacketDotNet.LLDPPacket)ethernetPacket.Extract(typeof(PacketDotNet.LLDPPacket));
if (lldp != null)
{
// Console.WriteLine("Nasiel som LLDP");
readLLDP(lldp, portNumber);
return;
}
if (searchMac(tabulka, ethernetPacket.SourceHwAddress.ToString(), portNumber) == 1)
{
// Console.WriteLine("Zaznam exituje");
// Console.WriteLine(pomNode.sourceMac + " " + pomNode.port + " " + pomNode.timer);
}
else
{
WpfApplication1.MacTable newNode = new WpfApplication1.MacTable();
// Console.WriteLine("Zaznam neexistuje treba ho pridat " + ethernetPacket.SourceHwAddress.ToString());
newNode.sourceMac = ethernetPacket.SourceHwAddress.ToString();
newNode.port = 1;
newNode.timer = timeInTimer;
tabulka.AddLast(newNode);
}
string protokol = findProtocol(ethernetPacket);
if (protokol != null && protokol.Equals("ARP"))
{
var ArpPacket = (PacketDotNet.ARPPacket)ethernetPacket.Extract(typeof(PacketDotNet.ARPPacket));
if (ArpPacket != null && checkFilter(portNumber, "In", ethernetPacket.SourceHwAddress.ToString()
, ethernetPacket.DestinationHwAddress.ToString(), ArpPacket.SenderProtocolAddress.ToString(),
ArpPacket.TargetProtocolAddress.ToString(), protokol) == 1)
{
return;
}
}
else
{
var IpPacket = (PacketDotNet.IpPacket)ethernetPacket.Extract(typeof(PacketDotNet.IpPacket));
// Console.WriteLine("ja som " + protokol + "\n");
if (IpPacket != null && checkFilter(portNumber, "In", ethernetPacket.SourceHwAddress.ToString()
, ethernetPacket.DestinationHwAddress.ToString(), IpPacket.SourceAddress.ToString(),
IpPacket.DestinationAddress.ToString(), protokol) == 1)
{
return;
}
}
incrementStatsIn(portNumber, protokol);
// Console.WriteLine("------- Ja som destinacia " + ethernetPacket.DestinationHwAddress.ToString()
// + "---------");
int destPort = searchMactoSend(tabulka, ethernetPacket.DestinationHwAddress.ToString());
if (protokol != null && protokol.Equals("ARP"))
{
var ArpPacket = (PacketDotNet.ARPPacket)ethernetPacket.Extract(typeof(PacketDotNet.ARPPacket));
if (ArpPacket != null && checkFilter(destPort, "Out", ethernetPacket.SourceHwAddress.ToString()
, ethernetPacket.DestinationHwAddress.ToString(), ArpPacket.SenderProtocolAddress.ToString(),
ArpPacket.TargetProtocolAddress.ToString(), protokol) == 1)
{
return;
}
}
else
{
var IpPacket = (PacketDotNet.IpPacket)ethernetPacket.Extract(typeof(PacketDotNet.IpPacket));
// Console.WriteLine("ja som " + protokol + "\n");
if (IpPacket != null && checkFilter(destPort, "Out", ethernetPacket.SourceHwAddress.ToString()
, ethernetPacket.DestinationHwAddress.ToString(), IpPacket.SourceAddress.ToString(),
IpPacket.DestinationAddress.ToString(), protokol) == 1)
{
return;
}
}
int odoslane = sendMsg(portNumber, destPort, packet2);
if (odoslane != -1)
{
incrementStatsOut(odoslane, protokol);
}
}
}
}
