2 * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that: (1) source code distributions
7 * retain the above copyright notice and this paragraph in its entirety, (2)
8 * distributions including binary code include the above copyright notice and
9 * this paragraph in its entirety in the documentation or other materials
10 * provided with the distribution, and (3) all advertising materials mentioning
11 * features or use of this software display the following acknowledgement:
12 * ``This product includes software developed by the University of California,
13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
14 * the University nor the names of its contributors may be used to endorse
15 * or promote products derived from this software without specific prior
17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
23 static const char rcsid[] =
24 "@(#) $Header: /tcpdump/master/tcpdump/print-frag6.c,v 1.13 2001/09/17 21:58:02 fenner Exp $";
33 #include <sys/param.h>
35 #include <sys/types.h>
36 #include <sys/socket.h>
39 #include <netinet/in.h>
45 #include "interface.h"
46 #include "addrtoname.h"
49 frag6_print(register const u_char *bp, register const u_char *bp2)
51 register const struct ip6_frag *dp;
52 register const struct ip6_hdr *ip6;
53 register const u_char *ep;
55 dp = (const struct ip6_frag *)bp;
56 ip6 = (const struct ip6_hdr *)bp2;
58 /* 'ep' points to the end of available data. */
61 TCHECK(dp->ip6f_offlg);
64 printf("frag (0x%08x:%d|%ld)",
65 (u_int32_t)ntohl(dp->ip6f_ident),
66 ntohs(dp->ip6f_offlg & IP6F_OFF_MASK),
67 sizeof(struct ip6_hdr) + ntohs(ip6->ip6_plen) -
68 (long)(bp - bp2) - sizeof(struct ip6_frag));
70 printf("frag (%d|%ld)",
71 ntohs(dp->ip6f_offlg & IP6F_OFF_MASK),
72 sizeof(struct ip6_hdr) + ntohs(ip6->ip6_plen) -
73 (long)(bp - bp2) - sizeof(struct ip6_frag));
77 /* it is meaningless to decode non-first fragment */
78 if (ntohs(dp->ip6f_offlg & IP6F_OFF_MASK) != 0)
84 return sizeof(struct ip6_frag);
87 fputs("[|frag]", stdout);