src/cons_ppp.c


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/* This file is part of Jumper
   Copyright (C) 1999-2005,2008,2013,2017,2020 Sergey Poznyakoff

   Jumper 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 3, or (at your option)
   any later version.
  
   Jumper 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 Jumper.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "jumper.h"

#define PPP_HDRLEN 4

void
cons_ppp_packet(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
{
	u_int length = h->len;
	u_int caplen = h->caplen;
	struct ip *ip;

	if (caplen < PPP_HDRLEN) {
		return;
	}

	length -= PPP_HDRLEN;
	ip = (struct ip *)(p + PPP_HDRLEN);
	ip_handler(ip, length);
}