arp_48bit.h

* A ncurses user interface. * Network statistics to view the amount of packets and data in many

/*

  This file is part of sniffer, a packet capture utility and
  network moniter
  The author can be contacted at <[e-mail]>
  the lastest version is avilable from 
  http://stev.org

  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 the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef _SNIFF_ARP_48bit_H
#define _SNIFF_ARP_48bit_H

#ifdef ARP_48BIT

#include <sys/socket.h>
#include <sys/types.h>

#include <linux/in.h>
#include <linux/if.h>
#include <linux/if_arp.h>

#include "sniff.h"
#include "list.h"
#include "arp.h"
#include "gui_main.h"

/* this is for the incoming data */
struct arp_48bit {
        unsigned char shw[ETH_ALEN]; /* sender hardware */
        unsigned char sip[4];        /* sender ip */
        unsigned char rhw[ETH_ALEN]; /* reciver hardware */
        unsigned char rip[4];        /* reciver ip */
};

struct arp_48bit_vendor {
        unsigned char hw[ETH_ALEN];
        char *string;
};

struct arp_48bit_data_t {
	char *str_addr;			/* string ip address */
	char *str_name;			/* hostname string */
	char *str_vendor;		/* vendor string */
	int if_index;			/* index number */
	char *if_name;			/* if name */
	unsigned char hw[ETH_ALEN];	/* the hardware address */
	unsigned long ip;		/* binary ip address */
	time_t last;			/* the last time it was seen */
	unsigned char	first:1, /* is this the first request */
					res:7;   /* just to make up the rest of the byte */
};

/******* VARS ******/
extern pthread_mutex_t arp_48bit_mutex;
extern struct list_t *arp_48bit_ven;
extern struct list_t *arp_48bit_data;
extern struct arp_48bit_vendor arp_48bit_vendors[];

extern unsigned long long arp_48bit_stats_requests;
extern unsigned long long arp_48bit_stats_replies;
extern unsigned long long arp_48bit_stats_dropped;
extern unsigned long long arp_48bit_stats_errors;

/**** Fucntions *****/

extern int arp_handle_48bit			(struct sniff_pkt *pkt, struct arphdr *in, void *data);
extern inline int arp_48bit_reply 	(struct sniff_pkt *pkt, struct arp_48bit *packet);
extern inline int arp_48bit_request	(struct sniff_pkt *pkt, struct arp_48bit *packet);

extern int arp_48bit_cmp_ip			(struct arp_48bit_data_t *c1, struct arp_48bit_data_t *c2);
extern void arp_48bit_set_vendor	(struct arp_48bit_data_t *data);
extern int arp_48bit_cmp_vendors	(struct arp_48bit_vendor *c1, struct arp_48bit_vendor *c2);
extern int arp_48bit_init			( void ); /* only call at startup */
extern void arp_gui_48bit			(struct gui_t *p, int y, int x);

#endif /* do we want arp_48bit ? */
#endif	/* _SNIFF_ARP_48bit_H */