| /* $NetBSD: print-ah.c,v 1.4 1996/05/20 00:41:16 fvdl Exp $ */ |
| |
| /* |
| * Copyright (c) 1988, 1989, 1990, 1991, 1992, 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-ah.c,v 1.22 2003-11-19 00:36:06 guy Exp $ (LBL)"; |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <tcpdump-stdinc.h> |
| |
| #include <stdio.h> |
| |
| #include "ah.h" |
| |
| #include "interface.h" |
| #include "addrtoname.h" |
| #include "extract.h" |
| |
| int |
| ah_print(register const u_char *bp) |
| { |
| register const struct ah *ah; |
| register const u_char *ep; |
| int sumlen; |
| u_int32_t spi; |
| |
| ah = (const struct ah *)bp; |
| ep = snapend; /* 'ep' points to the end of available data. */ |
| |
| TCHECK(*ah); |
| |
| sumlen = ah->ah_len << 2; |
| spi = EXTRACT_32BITS(&ah->ah_spi); |
| |
| printf("AH(spi=0x%08x", spi); |
| if (vflag) |
| printf(",sumlen=%d", sumlen); |
| printf(",seq=0x%x", EXTRACT_32BITS(ah + 1)); |
| if (bp + sizeof(struct ah) + sumlen > ep) |
| fputs("[truncated]", stdout); |
| fputs("): ", stdout); |
| |
| return sizeof(struct ah) + sumlen; |
| trunc: |
| fputs("[|AH]", stdout); |
| return -1; |
| } |