/// <summary>
/// Update ctrl with packet information
/// Increment frame_id by one
/// </summary>
/// <param name="packet">The packet to handle</param>
/// <param name="frame_id">The frame id, for UI display</param>
/// <param name="ctrl">The control to display information</param>
public static void HandlePacket(Packet packet, ref UInt64 frame_id, object[] ctrl)
{
EthernetDatagram ethernet = packet.Ethernet;
if (ethernet == null)
{
return;
}
switch (ethernet.EtherType)
{
case EthernetType.IpV4: {
IpV4Datagram ip = ethernet.IpV4;
IPParser.HandleIPV4(packet, ip, ref frame_id, ctrl);
break;
}
case EthernetType.Arp: {
ArpDatagram arp = ethernet.Arp;
ArpParser.HandleARP(packet, arp, ref frame_id, ctrl);
break;
}
default:
break;
}
}
/// <summary>
/// Packet parser dispatcher
/// </summary>
/// <param name="packet">The packet to be parsed</param>
/// <param name="ctrl">Contorls to update details with</param>
public static void ParsePacket(Packet packet, object[] ctrl)
{
if (packet == null || ctrl == null ||
ctrl[0] == null || ctrl[1] == null)
{
return;
}
EthernetDatagram ethernet = packet.Ethernet;
List <ListViewItem> items = new List <ListViewItem>();
ListViewItem item = new ListViewItem("Ethernet");
string estr = "Etype = " + ethernet.EtherType;
estr += ", DestinationAddress = " + ethernet.Destination;
estr += ", SourceAddress = " + ethernet.Source;
item.SubItems.Add(estr);
items.Add(item);
ListView f_details = (ListView)ctrl[0];
f_details.Items.Clear();
object[] param = new object[2];
param[0] = f_details;
param[1] = items;
f_details.BeginInvoke(new ParserHelper.UIHandler(ParserHelper.UpdateDetailsUI), param);
switch (ethernet.EtherType)
{
case EthernetType.IpV4: {
IpV4Datagram ip = ethernet.IpV4;
IPParser.ParseIPPacket(ip, ctrl);
break;
}
case EthernetType.Arp: {
ArpDatagram arp = ethernet.Arp;
ArpParser.ParseARPPacket(arp, ctrl);
break;
}
default:
break;
}
// Save packet for layed analyze
SnifferMain.packet = packet;
}