| /* |
| * 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[] _U_ = |
| "@(#) $Header: /tcpdump/master/tcpdump/print-frag6.c,v 1.20 2005-04-20 22:33:06 guy Exp $"; |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #ifdef INET6 |
| |
| #include <tcpdump-stdinc.h> |
| |
| #include <stdio.h> |
| |
| #include "ip6.h" |
| |
| #include "interface.h" |
| #include "addrtoname.h" |
| #include "extract.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; |
| |
| dp = (const struct ip6_frag *)bp; |
| ip6 = (const struct ip6_hdr *)bp2; |
| |
| TCHECK(dp->ip6f_offlg); |
| |
| if (vflag) { |
| printf("frag (0x%08x:%d|%ld)", |
| EXTRACT_32BITS(&dp->ip6f_ident), |
| EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK, |
| sizeof(struct ip6_hdr) + EXTRACT_16BITS(&ip6->ip6_plen) - |
| (long)(bp - bp2) - sizeof(struct ip6_frag)); |
| } else { |
| printf("frag (%d|%ld)", |
| EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK, |
| sizeof(struct ip6_hdr) + EXTRACT_16BITS(&ip6->ip6_plen) - |
| (long)(bp - bp2) - sizeof(struct ip6_frag)); |
| } |
| |
| #if 1 |
| /* it is meaningless to decode non-first fragment */ |
| if ((EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK) != 0) |
| return -1; |
| else |
| #endif |
| { |
| fputs(" ", stdout); |
| return sizeof(struct ip6_frag); |
| } |
| trunc: |
| fputs("[|frag]", stdout); |
| return -1; |
| #undef TCHECK |
| } |
| #endif /* INET6 */ |