156893Sfenner/* 256893Sfenner * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994 356893Sfenner * The Regents of the University of California. All rights reserved. 456893Sfenner * 556893Sfenner * Redistribution and use in source and binary forms, with or without 656893Sfenner * modification, are permitted provided that: (1) source code distributions 756893Sfenner * retain the above copyright notice and this paragraph in its entirety, (2) 856893Sfenner * distributions including binary code include the above copyright notice and 956893Sfenner * this paragraph in its entirety in the documentation or other materials 1056893Sfenner * provided with the distribution, and (3) all advertising materials mentioning 1156893Sfenner * features or use of this software display the following acknowledgement: 1256893Sfenner * ``This product includes software developed by the University of California, 1356893Sfenner * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 1456893Sfenner * the University nor the names of its contributors may be used to endorse 1556893Sfenner * or promote products derived from this software without specific prior 1656893Sfenner * written permission. 1756893Sfenner * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 1856893Sfenner * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 1956893Sfenner * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 2056893Sfenner */ 2156893Sfenner 2256893Sfenner#ifndef lint 23127668Sbmsstatic const char rcsid[] _U_ = 24190207Srpaulo "@(#) $Header: /tcpdump/master/tcpdump/print-rt6.c,v 1.27 2005-04-20 22:34:57 guy Exp $"; 2556893Sfenner#endif 2656893Sfenner 2756893Sfenner#ifdef HAVE_CONFIG_H 2856893Sfenner#include "config.h" 2956893Sfenner#endif 3056893Sfenner 3156893Sfenner#ifdef INET6 3256893Sfenner 33127668Sbms#include <tcpdump-stdinc.h> 3456893Sfenner 3556893Sfenner#include <stdio.h> 3656893Sfenner 3775115Sfenner#include "ip6.h" 3856893Sfenner 3956893Sfenner#include "interface.h" 4056893Sfenner#include "addrtoname.h" 41127668Sbms#include "extract.h" 4256893Sfenner 4356893Sfennerint 44147899Ssamrt6_print(register const u_char *bp, const u_char *bp2 _U_) 4556893Sfenner{ 4656893Sfenner register const struct ip6_rthdr *dp; 4756893Sfenner register const struct ip6_rthdr0 *dp0; 4856893Sfenner register const u_char *ep; 4956893Sfenner int i, len; 5075115Sfenner register const struct in6_addr *addr; 5156893Sfenner 5256893Sfenner dp = (struct ip6_rthdr *)bp; 5356893Sfenner len = dp->ip6r_len; 5456893Sfenner 5575115Sfenner /* 'ep' points to the end of available data. */ 5656893Sfenner ep = snapend; 5756893Sfenner 5856893Sfenner TCHECK(dp->ip6r_segleft); 5956893Sfenner 6075115Sfenner printf("srcrt (len=%d", dp->ip6r_len); /*)*/ 6175115Sfenner printf(", type=%d", dp->ip6r_type); 6275115Sfenner printf(", segleft=%d", dp->ip6r_segleft); 6356893Sfenner 6475115Sfenner switch (dp->ip6r_type) { 6575115Sfenner#ifndef IPV6_RTHDR_TYPE_0 6675115Sfenner#define IPV6_RTHDR_TYPE_0 0 6775115Sfenner#endif 68127668Sbms#ifndef IPV6_RTHDR_TYPE_2 69127668Sbms#define IPV6_RTHDR_TYPE_2 2 70127668Sbms#endif 7156893Sfenner case IPV6_RTHDR_TYPE_0: 72127668Sbms case IPV6_RTHDR_TYPE_2: /* Mobile IPv6 ID-20 */ 7356893Sfenner dp0 = (struct ip6_rthdr0 *)dp; 7456893Sfenner 7556893Sfenner TCHECK(dp0->ip6r0_reserved); 7656893Sfenner if (dp0->ip6r0_reserved || vflag) { 7775115Sfenner printf(", rsv=0x%0x", 78127668Sbms EXTRACT_32BITS(&dp0->ip6r0_reserved)); 7956893Sfenner } 8056893Sfenner 8156893Sfenner if (len % 2 == 1) 8256893Sfenner goto trunc; 8356893Sfenner len >>= 1; 8475115Sfenner addr = &dp0->ip6r0_addr[0]; 8556893Sfenner for (i = 0; i < len; i++) { 8675115Sfenner if ((u_char *)(addr + 1) > ep) 8756893Sfenner goto trunc; 88127668Sbms 8975115Sfenner printf(", [%d]%s", i, ip6addr_string(addr)); 9075115Sfenner addr++; 9156893Sfenner } 9275115Sfenner /*(*/ 9375115Sfenner printf(") "); 9456893Sfenner return((dp0->ip6r0_len + 1) << 3); 9556893Sfenner break; 9656893Sfenner default: 9756893Sfenner goto trunc; 9856893Sfenner break; 9956893Sfenner } 10056893Sfenner 10156893Sfenner trunc: 10256893Sfenner fputs("[|srcrt]", stdout); 103127668Sbms return -1; 10456893Sfenner} 10556893Sfenner#endif /* INET6 */ 106