105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
|
/*
|
||
|
|
* Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994
|
||
|
|
* 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: /tcpdump/master/tcpdump/print-frag6.c,v 1.3.2.1 2000/01/11 06:58:24 fenner Exp $";
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef HAVE_CONFIG_H
|
||
|
|
#include "config.h"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef INET6
|
||
|
|
|
||
|
|
#include <sys/param.h>
|
||
|
|
#include <sys/time.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <sys/socket.h>
|
||
|
|
|
||
|
|
#include <net/if.h>
|
||
|
|
|
||
|
|
#include <netinet/in.h>
|
||
|
|
#include <netinet/if_ether.h>
|
||
|
|
#include <netinet/in_systm.h>
|
||
|
|
#include <netinet/ip.h>
|
||
|
|
#include <netinet/ip_icmp.h>
|
||
|
|
#include <netinet/ip_var.h>
|
||
|
|
#include <netinet/udp.h>
|
||
|
|
#include <netinet/udp_var.h>
|
||
|
|
#include <netinet/tcp.h>
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#include <netinet/ip6.h>
|
||
|
|
|
||
|
|
#include "interface.h"
|
||
|
|
#include "addrtoname.h"
|
||
|
|
|
||
|
|
int
|
||
|
|
frag6_print(register const u_char *bp, register const u_char *bp2)
|
||
|
|
{
|
||
|
|
register const struct ip6_frag *dp;
|
||
|
|
register const struct ip6_hdr *ip6;
|
||
|
|
register const u_char *ep;
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
#define TCHECK(var) if ((u_char *)&(var) >= ep - sizeof(var)) goto trunc
|
||
|
|
#endif
|
||
|
|
|
||
|
|
dp = (struct ip6_frag *)bp;
|
||
|
|
ip6 = (struct ip6_hdr *)bp2;
|
||
|
|
|
||
|
|
/* 'ep' points to the end of avaible data. */
|
||
|
|
ep = snapend;
|
||
|
|
|
||
|
|
TCHECK(dp->ip6f_offlg);
|
||
|
|
|
||
|
|
if (vflag) {
|
||
|
|
printf("frag (0x%08x:%d|%ld)",
|
||
|
|
(u_int32_t)ntohl(dp->ip6f_ident),
|
||
|
|
ntohs(dp->ip6f_offlg & IP6F_OFF_MASK),
|
||
|
|
sizeof(struct ip6_hdr) + ntohs(ip6->ip6_plen) -
|
||
|
|
(long)(bp - bp2) - sizeof(struct ip6_frag));
|
||
|
|
} else {
|
||
|
|
printf("frag (%d|%ld)",
|
||
|
|
ntohs(dp->ip6f_offlg & IP6F_OFF_MASK),
|
||
|
|
sizeof(struct ip6_hdr) + ntohs(ip6->ip6_plen) -
|
||
|
|
(long)(bp - bp2) - sizeof(struct ip6_frag));
|
||
|
|
}
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
/* it is meaningless to decode non-first fragment */
|
||
|
|
if (ntohs(dp->ip6f_offlg & IP6F_OFF_MASK) != 0)
|
||
|
|
return 65535;
|
||
|
|
else
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
fputs(" ", stdout);
|
||
|
|
return sizeof(struct ip6_frag);
|
||
|
|
}
|
||
|
|
trunc:
|
||
|
|
fputs("[|frag]", stdout);
|
||
|
|
return 65535;
|
||
|
|
#undef TCHECK
|
||
|
|
}
|
||
|
|
#endif /* INET6 */
|