projects / dragonfly.git / blame
| Commit | Line | Data |
|---|---|---|
| c8cf0f94 PA |
1 | /* |
| 2 | * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994 | |
| 3 | * The Regents of the University of California. All rights reserved. | |
| 4 | * | |
| 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 | |
| 16 | * written permission. | |
| 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. | |
| 20 | */ | |
| 21 | ||
| 22 | #ifndef lint | |
| 23 | static const char rcsid[] _U_ = | |
| 24 | "@(#) $Header: /tcpdump/master/tcpdump/print-frag6.c,v 1.19.2.1 2005/04/20 22:33:21 guy Exp $"; | |
| 25 | #endif | |
| 26 | ||
| 27 | #ifdef HAVE_CONFIG_H | |
| 28 | #include "config.h" | |
| 29 | #endif | |
| 30 | ||
| 31 | #ifdef INET6 | |
| 32 | ||
| 33 | #include <tcpdump-stdinc.h> | |
| 34 | ||
| 35 | #include <stdio.h> | |
| 36 | ||
| 37 | #include "ip6.h" | |
| 38 | ||
| 39 | #include "interface.h" | |
| 40 | #include "addrtoname.h" | |
| 41 | #include "extract.h" | |
| 42 | ||
| 43 | int | |
| 44 | frag6_print(register const u_char *bp, register const u_char *bp2) | |
| 45 | { | |
| 46 | register const struct ip6_frag *dp; | |
| 47 | register const struct ip6_hdr *ip6; | |
| 48 | ||
| 49 | dp = (const struct ip6_frag *)bp; | |
| 50 | ip6 = (const struct ip6_hdr *)bp2; | |
| 51 | ||
| 52 | TCHECK(dp->ip6f_offlg); | |
| 53 | ||
| 54 | if (vflag) { | |
| 55 | printf("frag (0x%08x:%d|%ld)", | |
| 56 | EXTRACT_32BITS(&dp->ip6f_ident), | |
| 57 | EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK, | |
| 58 | sizeof(struct ip6_hdr) + EXTRACT_16BITS(&ip6->ip6_plen) - | |
| 59 | (long)(bp - bp2) - sizeof(struct ip6_frag)); | |
| 60 | } else { | |
| 61 | printf("frag (%d|%ld)", | |
| 62 | EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK, | |
| 63 | sizeof(struct ip6_hdr) + EXTRACT_16BITS(&ip6->ip6_plen) - | |
| 64 | (long)(bp - bp2) - sizeof(struct ip6_frag)); | |
| 65 | } | |
| 66 | ||
| 67 | #if 1 | |
| 68 | /* it is meaningless to decode non-first fragment */ | |
| 69 | if ((EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK) != 0) | |
| 70 | return -1; | |
| 71 | else | |
| 72 | #endif | |
| 73 | { | |
| 74 | fputs(" ", stdout); | |
| 75 | return sizeof(struct ip6_frag); | |
| 76 | } | |
| 77 | trunc: | |
| 78 | fputs("[|frag]", stdout); | |
| 79 | return -1; | |
| 80 | #undef TCHECK | |
| 81 | } | |
| 82 | #endif /* INET6 */ |