121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
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/*
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* Copyright (c) 1988, 1989, 1990, 1991, 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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#ifndef lint
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static const char rcsid[] =
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"@(#) $Header: /tcpdump/master/tcpdump/print-rt6.c,v 1.3.2.1 2000/01/11 06:58:26 fenner Exp $";
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef INET6
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip_icmp.h>
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#include <netinet/ip_var.h>
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#include <netinet/udp.h>
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#include <netinet/udp_var.h>
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#include <netinet/tcp.h>
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#include <stdio.h>
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#include <netinet/ip6.h>
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#include "interface.h"
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#include "addrtoname.h"
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int
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rt6_print(register const u_char *bp, register const u_char *bp2)
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{
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register const struct ip6_rthdr *dp;
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register const struct ip6_rthdr0 *dp0;
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register const struct ip6_hdr *ip;
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register const u_char *ep;
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int i, len;
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dp = (struct ip6_rthdr *)bp;
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ip = (struct ip6_hdr *)bp2;
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len = dp->ip6r_len;
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/* 'ep' points to the end of avaible data. */
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ep = snapend;
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printf("%s > %s: ",
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ip6addr_string(&ip->ip6_src),
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ip6addr_string(&ip->ip6_dst));
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TCHECK(dp->ip6r_segleft);
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printf("srcrt (len=%d, ", dp->ip6r_len);
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printf("type=%d, ", dp->ip6r_type);
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printf("segleft=%d, ", dp->ip6r_segleft);
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switch(dp->ip6r_type) {
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case IPV6_RTHDR_TYPE_0:
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dp0 = (struct ip6_rthdr0 *)dp;
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TCHECK(dp0->ip6r0_reserved);
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if (dp0->ip6r0_reserved || vflag) {
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printf("rsv=0x%0x, ",
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(u_int32_t)ntohl(dp0->ip6r0_reserved));
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}
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if (len % 2 == 1)
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goto trunc;
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len >>= 1;
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for (i = 0; i < len; i++) {
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struct in6_addr *addr;
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addr = ((struct in6_addr *)(dp0 + 1)) + i;
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if ((u_char *)addr > ep - sizeof(*addr))
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goto trunc;
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printf("[%d]%s", i, ip6addr_string((u_char *)addr));
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if (i != len - 1)
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printf(", ");
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}
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printf(")");
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return((dp0->ip6r0_len + 1) << 3);
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break;
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default:
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goto trunc;
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break;
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}
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trunc:
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fputs("[|srcrt]", stdout);
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return 65535; /* XXX */
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}
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#endif /* INET6 */
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