cConStream.cpp

/*
 *
 *  Copyright (C) 2013  Anwar Mohamed <anwarelmakrahy[at]gmail.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to Anwar Mohamed
 *  anwarelmakrahy[at]gmail.com
 *
 */

#include "Packetyzer.h"

using namespace std;
using namespace Packetyzer::Traffic::Streams;

cConStream::cConStream()
{
	ServerIP = NULL;
	ClientIP = NULL;
};

cConStream::~cConStream()
{

};

BOOL cConStream::AddPacket(cPacket* Packet)
{
 	if (!Packet->isIPPacket && (!Packet->isTCPPacket && !Packet->isUDPPacket)) return FALSE;

	if (nPackets > 0)
	{
		if ( ((ServerIP == Packet->IPHeader->DestinationAddress && ClientIP == Packet->IPHeader->SourceAddress) ||
			 (ClientIP == Packet->IPHeader->DestinationAddress && ServerIP == Packet->IPHeader->SourceAddress)) )
		{
			nPackets++;
			Packets = (cPacket**)realloc((void*)Packets, nPackets * sizeof(cPacket*));
			memcpy((void**)&Packets[(nPackets-1)], (void**)&Packet, sizeof(cPacket*));

			return TRUE;
		}
		else return FALSE;
	}
	else
	{
		nPackets++;
		Packets = (cPacket**)realloc((void*)Packets, nPackets * sizeof(cPacket*));
		memcpy((void**)&Packets[(nPackets-1)], (void**)&Packet, sizeof(cPacket*));

		isIPConnection = Packet->isIPPacket;
		isTCPConnection = Packet->isTCPPacket;
		isUDPConnection = Packet->isUDPPacket;
		
		if (Packets[0]->hasEtherHeader)
		{
			memcpy(&ServerMAC, &Packets[0]->EthernetHeader->DestinationHost, ETHER_ADDR_LEN);
			memcpy(&ClientMAC, &Packets[0]->EthernetHeader->SourceHost, ETHER_ADDR_LEN);
			Protocol = Packets[0]->EthernetHeader->ProtocolType;
		}
		else if (Packets[0]->hasSLLHeader && ntohs(Packets[0]->SLLHeader->AddressLength) == ETHER_ADDR_LEN)
		{
			memset(&ServerMAC, 0,ETHER_ADDR_LEN);
			memcpy(&ClientMAC, &Packets[0]->SLLHeader->Address, ETHER_ADDR_LEN);
			Protocol = Packets[0]->SLLHeader->ProtocolType;
		}

		ServerIP = Packets[0]->IPHeader->DestinationAddress;
		ClientIP = Packets[0]->IPHeader->SourceAddress;

		return TRUE;
	}
}

BOOL cConStream::Identify(cPacket* Packet) 
{ 
	if (Packet->isIPPacket && (Packet->isTCPPacket || Packet->isUDPPacket)) return TRUE;
	else return FALSE;
}