private string[] MakeTCP(TCPHeader tcpHeader)
{
string ack = null;
if (tcpHeader.AcknowledgementNumber != "")
{
ack = "Acknowledgement Number: " + tcpHeader.AcknowledgementNumber;
}
else
{
ack = "Acknowledgement Number: ";
}
string[] TCPNode = new string[] { "TCP", "Source Port: " + tcpHeader.SourcePort,
"Destination Port: " + tcpHeader.DestinationPort,
"Sequence Number: " + tcpHeader.SequenceNumber,
ack, "Header Length: " + tcpHeader.HeaderLength,
"Flags: " + tcpHeader.Flags,
"Window Size: " + tcpHeader.WindowSize,
"Checksum: " + tcpHeader.Checksum };
return(TCPNode);
}
private void ParseData(byte[] byteData, int nReceived)
{
if (PacketNum == Convert.ToInt32(this.tscbNum.Text))
{
PacketNum = 1;
this.lvReceivedPackets.Items.Clear();
}
IPHeader ipHeader = new IPHeader(byteData, nReceived);
string[] lvStrArr = new string[] { PacketNum.ToString(), DateTime.Now.ToString(),
ipHeader.SourceAddress.ToString(), ipHeader.DestinationAddress.ToString(),
ipHeader.ProtocolType.ToString(), ipHeader.TotalLength };
string[] IpStrArr = MakeIP(ipHeader, ipHeader.ProtocolType.ToString());
string[] MergeIPArr = new string[lvStrArr.Length + IpStrArr.Length];
Array.Copy(lvStrArr, 0, MergeIPArr, 0, lvStrArr.Length);
Array.Copy(IpStrArr, 0, MergeIPArr, lvStrArr.Length, IpStrArr.Length);
string[] MergeTCP = null;
string[] MergeUDP = null;
string[] MergeAll = null;
switch (ipHeader.ProtocolType) // fixed
{
case Protocol.TCP:
TCPHeader tcpHeader = new TCPHeader(ipHeader.Data,
ipHeader.MessageLength);
MergeTCP = MakeTCP(tcpHeader);
MergeAll = new string[MergeIPArr.Length + MergeTCP.Length];
Array.Copy(MergeIPArr, 0, MergeAll, 0, MergeIPArr.Length);
Array.Copy(MergeTCP, 0, MergeAll, MergeIPArr.Length, MergeTCP.Length);
break;
case Protocol.UDP:
UDPHeader udpHeader = new UDPHeader(ipHeader.Data,
(int)ipHeader.MessageLength);
MergeUDP = MakeUDP(udpHeader);
MergeAll = new string[MergeIPArr.Length + MergeUDP.Length];
Array.Copy(MergeIPArr, 0, MergeAll, 0, MergeIPArr.Length);
Array.Copy(MergeUDP, 0, MergeAll, MergeIPArr.Length, MergeUDP.Length);
break;
case Protocol.ICMP:
MergeAll = MergeIPArr;
break;
case Protocol.IGMP:
MergeAll = MergeIPArr;
break;
case Protocol.IGRP:
MergeAll = MergeIPArr;
break;
case Protocol.AH:
MergeAll = MergeIPArr;
break;
case Protocol.EIGRP:
MergeAll = MergeIPArr;
break;
case Protocol.ESP:
MergeAll = MergeIPArr;
break;
case Protocol.GRE:
MergeAll = MergeIPArr;
break;
case Protocol.L2TP:
MergeAll = MergeIPArr;
break;
case Protocol.OSPF:
MergeAll = MergeIPArr;
break;
case Protocol.SKIP:
MergeAll = MergeIPArr;
break;
case Protocol.Unknown:
MergeAll = MergeIPArr;
break;
}
var lvt = new ListViewItem(MergeAll);
this.lvReceivedPackets.Items.Add(lvt);
PacketNum++;
}