internal static void IPv4Handler(byte[] packetData)
{
IPPacket ip_packet = new IPPacket(packetData);
//[Received] " + ip_packet.ToString()
if (ip_packet.SourceIP == null)
{
//SourceIP null in IPv4Handler!
}
ARPCache.Update(ip_packet.SourceIP, ip_packet.SourceMAC);
if ((NetworkStack.AddressMap.ContainsKey(ip_packet.DestinationIP.Hash) == true) ||
(ip_packet.DestinationIP.address[3] == 255))
{
switch (ip_packet.Protocol)
{
case 1:
ICMPPacket.ICMPHandler(packetData);
break;
case 6:
TCPPacket.TCPHandler(packetData);
break;
case 17:
UDPPacket.UDPHandler(packetData);
break;
}
}
else if (NetworkStack.MACMap.ContainsKey(ip_packet.DestinationMAC.Hash))
{
DHCP.DHCPPacket.DHCPHandler(packetData);
}
}
internal static void AddPacket(IPPacket packet)
{
ensureQueueExists();
NetworkDevice nic = Config.FindInterface(packet.SourceIP);
packet.SourceMAC = nic.MACAddress;
queue.Add(new BufferEntry(nic, packet));
}
public BufferEntry(NetworkDevice nic, IPPacket packet)
{
this.NIC = nic;
this.Packet = packet;
if (Packet.DestinationIP.IsBroadcastAddress())
{
this.Status = EntryStatus.DHCP_REQUEST;
}
else
{
this.Status = EntryStatus.ADDED;
}
}
protected UInt16 CalcOcCRC(UInt16 offset, UInt16 length)
{
return(IPPacket.CalcOcCRC(this.RawData, offset, length));
}
internal static void AddPacket(IPPacket packet, NetworkDevice device)
{
ensureQueueExists();
packet.SourceMAC = device.MACAddress;
queue.Add(new BufferEntry(device, packet));
}
