/* $NetBSD: print-rt6.c,v 1.3 2004/09/27 23:04:25 dyoung Exp $ */ /* * Copyright (c) 1988, 1989, 1990, 1991, 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. */ #include #ifndef lint #if 0 static const char rcsid[] _U_ = "@(#) Header: /tcpdump/master/tcpdump/print-rt6.c,v 1.23.2.3 2003/11/19 00:35:45 guy Exp"; #else __RCSID("$NetBSD: print-rt6.c,v 1.3 2004/09/27 23:04:25 dyoung Exp $"); #endif #endif #ifdef HAVE_CONFIG_H #include "config.h" #endif #ifdef INET6 #include #include #include "ip6.h" #include "interface.h" #include "addrtoname.h" #include "extract.h" int rt6_print(register const u_char *bp, register const u_char *bp2) { register const struct ip6_rthdr *dp; register const struct ip6_rthdr0 *dp0; register const struct ip6_hdr *ip; register const u_char *ep; int i, len; register const struct in6_addr *addr; dp = (struct ip6_rthdr *)bp; ip = (struct ip6_hdr *)bp2; len = dp->ip6r_len; /* 'ep' points to the end of available data. */ ep = snapend; TCHECK(dp->ip6r_segleft); printf("srcrt (len=%d", dp->ip6r_len); /*)*/ printf(", type=%d", dp->ip6r_type); printf(", segleft=%d", dp->ip6r_segleft); switch (dp->ip6r_type) { #ifndef IPV6_RTHDR_TYPE_0 #define IPV6_RTHDR_TYPE_0 0 #endif #ifndef IPV6_RTHDR_TYPE_2 #define IPV6_RTHDR_TYPE_2 2 #endif case IPV6_RTHDR_TYPE_0: case IPV6_RTHDR_TYPE_2: /* Mobile IPv6 ID-20 */ dp0 = (struct ip6_rthdr0 *)dp; TCHECK(dp0->ip6r0_reserved); if (dp0->ip6r0_reserved || vflag) { printf(", rsv=0x%0x", EXTRACT_32BITS(&dp0->ip6r0_reserved)); } if (len % 2 == 1) goto trunc; len >>= 1; addr = &dp0->ip6r0_addr[0]; for (i = 0; i < len; i++) { if ((u_char *)(addr + 1) > ep) goto trunc; printf(", [%d]%s", i, ip6addr_string(addr)); addr++; } /*(*/ printf(") "); return((dp0->ip6r0_len + 1) << 3); break; default: goto trunc; break; } trunc: fputs("[|srcrt]", stdout); return -1; } #endif /* INET6 */