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64 lines
2.0 KiB
64 lines
2.0 KiB
/* $NetBSD: print-ah.c,v 1.4 1996/05/20 00:41:16 fvdl Exp $ */ |
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/* |
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* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that: (1) source code distributions |
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* retain the above copyright notice and this paragraph in its entirety, (2) |
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* distributions including binary code include the above copyright notice and |
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* this paragraph in its entirety in the documentation or other materials |
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* provided with the distribution, and (3) all advertising materials mentioning |
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* features or use of this software display the following acknowledgement: |
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* ``This product includes software developed by the University of California, |
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
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* the University nor the names of its contributors may be used to endorse |
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* or promote products derived from this software without specific prior |
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* written permission. |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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*/ |
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/* \summary: IPSEC Authentication Header printer */ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <netdissect-stdinc.h> |
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#include "ah.h" |
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#include "netdissect.h" |
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#include "extract.h" |
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int |
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ah_print(netdissect_options *ndo, register const u_char *bp) |
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{ |
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register const struct ah *ah; |
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int sumlen; |
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ah = (const struct ah *)bp; |
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ND_TCHECK(*ah); |
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sumlen = ah->ah_len << 2; |
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ND_PRINT((ndo, "AH(spi=0x%08x", EXTRACT_32BITS(&ah->ah_spi))); |
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if (ndo->ndo_vflag) |
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ND_PRINT((ndo, ",sumlen=%d", sumlen)); |
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ND_TCHECK_32BITS(ah + 1); |
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ND_PRINT((ndo, ",seq=0x%x", EXTRACT_32BITS(ah + 1))); |
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if (!ND_TTEST2(*bp, sizeof(struct ah) + sumlen)) { |
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ND_PRINT((ndo, "[truncated]):")); |
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return -1; |
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} |
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ND_PRINT((ndo, "): ")); |
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return sizeof(struct ah) + sumlen; |
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trunc: |
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ND_PRINT((ndo, "[|AH]")); |
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return -1; |
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}
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