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/*
* Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
* the University nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific prior
* written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /cvs/OpenBSD/src/usr.sbin/tcpdump/print-ppp.c,v 1.5 1996/12/12 16:22:28 bitblt Exp $ (LBL)";
#endif
#ifdef PPP
#include <sys/param.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#if __STDC__
struct mbuf;
struct rtentry;
#endif
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <ctype.h>
#include <netdb.h>
#include <pcap.h>
#include <signal.h>
#include <stdio.h>
#include "interface.h"
#include "addrtoname.h"
/* XXX This goes somewhere else. */
#define PPP_HDRLEN 4
void
ppp_if_print(u_char *user, const struct pcap_pkthdr *h,
register const u_char *p)
{
register u_int length = h->len;
register u_int caplen = h->caplen;
const struct ip *ip;
ts_print(&h->ts);
if (caplen < PPP_HDRLEN) {
printf("[|ppp]");
goto out;
}
/*
* Some printers want to get back at the link level addresses,
* and/or check that they're not walking off the end of the packet.
* Rather than pass them all the way down, we set these globals.
*/
packetp = p;
snapend = p + caplen;
if (eflag)
printf("%c %4d %02x %04x: ", p[0] ? 'O' : 'I', length,
p[1], ntohs(*(u_short *)&p[2]));
length -= PPP_HDRLEN;
ip = (struct ip *)(p + PPP_HDRLEN);
ip_print((const u_char *)ip, length);
if (xflag)
default_print((const u_char *)ip, caplen - PPP_HDRLEN);
out:
putchar('\n');
}
#else
#include <sys/types.h>
#include <sys/time.h>
#include <stdio.h>
#include "interface.h"
void
ppp_if_print(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
{
error("not configured for ppp");
/* NOTREACHED */
}
#endif
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