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#ifndef _CPACKET_H
#define _CPACKET_H
#include <net/if.h>
#include <string>
#include "CRefPtr.h"
class CPacket // implement reference counting
{
//fields
public:
unsigned long packet_id; // unique packet id, needed for accepting or dropping a packet (libipq)
unsigned long arrived; // time the packet arrived (in seconds)
unsigned char interface_in[IFNAMSIZ]; // name of incoming interface
unsigned char interface_out[IFNAMSIZ]; // name of outgoing interface
unsigned short int len; // length of packet data
unsigned long ip_src; // source ip
unsigned long ip_dst; // destination ip
unsigned int protocol:8; // protocol id (see rules.h)
unsigned short int port_src; // source port
unsigned short int port_dst; // destination port
unsigned short int tcp_flags; // tcp flags: ACK, FIN, RST, SYN, ...
unsigned int icmp_type:8; // type of icmp packet
unsigned int mac_addrlen:8; // real length of mac address
unsigned char mac_addr[8]; // mac is maximum 8 bytes
unsigned int hook; // chain (INPUT=1, FORWARD=2, OUTPUT=3)
char* data; // packet data
std::string programname; // program using this packets localport/localip
//constructors
protected:
CPacket()
: data(NULL)
//, programname(char*())
{}
public:
~CPacket()
{
/* if (programname)
delete[] programname;*/
if (data)
delete[] data;
}
//methods
public:
static CRefPtr <const CPacket> scanPacket(const unsigned char* buffer);
};
#endif
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