1b0453382SBill Fenner /* $NetBSD: print-ah.c,v 1.4 1996/05/20 00:41:16 fvdl Exp $ */ 2b0453382SBill Fenner 3b0453382SBill Fenner /* 4b0453382SBill Fenner * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994 5b0453382SBill Fenner * The Regents of the University of California. All rights reserved. 6b0453382SBill Fenner * 7b0453382SBill Fenner * Redistribution and use in source and binary forms, with or without 8b0453382SBill Fenner * modification, are permitted provided that: (1) source code distributions 9b0453382SBill Fenner * retain the above copyright notice and this paragraph in its entirety, (2) 10b0453382SBill Fenner * distributions including binary code include the above copyright notice and 11b0453382SBill Fenner * this paragraph in its entirety in the documentation or other materials 12b0453382SBill Fenner * provided with the distribution, and (3) all advertising materials mentioning 13b0453382SBill Fenner * features or use of this software display the following acknowledgement: 14b0453382SBill Fenner * ``This product includes software developed by the University of California, 15b0453382SBill Fenner * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 16b0453382SBill Fenner * the University nor the names of its contributors may be used to endorse 17b0453382SBill Fenner * or promote products derived from this software without specific prior 18b0453382SBill Fenner * written permission. 19b0453382SBill Fenner * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 20b0453382SBill Fenner * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 21b0453382SBill Fenner * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 22b0453382SBill Fenner */ 23b0453382SBill Fenner 24b0453382SBill Fenner #ifndef lint 255b0fe478SBruce M Simpson static const char rcsid[] _U_ = 265b0fe478SBruce M Simpson "@(#) $Header: /tcpdump/master/tcpdump/print-ah.c,v 1.19.2.3 2003/11/19 00:35:43 guy Exp $ (LBL)"; 27b0453382SBill Fenner #endif 28b0453382SBill Fenner 29b0453382SBill Fenner #ifdef HAVE_CONFIG_H 30b0453382SBill Fenner #include "config.h" 31b0453382SBill Fenner #endif 32b0453382SBill Fenner 335b0fe478SBruce M Simpson #include <tcpdump-stdinc.h> 34b0453382SBill Fenner 35b0453382SBill Fenner #include <stdio.h> 36b0453382SBill Fenner 37685295f4SBill Fenner #include "ah.h" 38b0453382SBill Fenner 39b0453382SBill Fenner #include "interface.h" 40b0453382SBill Fenner #include "addrtoname.h" 415b0fe478SBruce M Simpson #include "extract.h" 42b0453382SBill Fenner 43b0453382SBill Fenner int 445b0fe478SBruce M Simpson ah_print(register const u_char *bp) 45b0453382SBill Fenner { 46b0453382SBill Fenner register const struct ah *ah; 47b0453382SBill Fenner register const u_char *ep; 48b0453382SBill Fenner int sumlen; 49b0453382SBill Fenner u_int32_t spi; 50b0453382SBill Fenner 51a90e161bSBill Fenner ah = (const struct ah *)bp; 52685295f4SBill Fenner ep = snapend; /* 'ep' points to the end of available data. */ 53b0453382SBill Fenner 54a90e161bSBill Fenner TCHECK(*ah); 55b0453382SBill Fenner 56b0453382SBill Fenner sumlen = ah->ah_len << 2; 575b0fe478SBruce M Simpson spi = EXTRACT_32BITS(&ah->ah_spi); 58b0453382SBill Fenner 59685295f4SBill Fenner printf("AH(spi=0x%08x", spi); 60b0453382SBill Fenner if (vflag) 61b0453382SBill Fenner printf(",sumlen=%d", sumlen); 625b0fe478SBruce M Simpson printf(",seq=0x%x", EXTRACT_32BITS(ah + 1)); 63b0453382SBill Fenner if (bp + sizeof(struct ah) + sumlen > ep) 64b0453382SBill Fenner fputs("[truncated]", stdout); 65b0453382SBill Fenner fputs("): ", stdout); 66b0453382SBill Fenner 67b0453382SBill Fenner return sizeof(struct ah) + sumlen; 68b0453382SBill Fenner trunc: 69b0453382SBill Fenner fputs("[|AH]", stdout); 705b0fe478SBruce M Simpson return -1; 71b0453382SBill Fenner } 72