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/* $OpenBSD: print-rt6.c,v 1.7 2018/10/22 16:12:45 kn 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 <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <netinet/tcp.h>
#include <stdio.h>
#include <netinet/ip6.h>
#include "interface.h"
#include "addrtoname.h"
int
rt6_print(const u_char *bp, const u_char *bp2)
{
const struct ip6_rthdr *dp;
const struct ip6_rthdr0 *dp0;
const struct ip6_hdr *ip;
const u_char *ep;
int i, len;
dp = (struct ip6_rthdr *)bp;
ip = (struct ip6_hdr *)bp2;
len = dp->ip6r_len;
/* 'ep' points to the end of avaible data. */
ep = snapend;
#if 0
printf("%s > %s: ",
ip6addr_string(&ip->ip6_src),
ip6addr_string(&ip->ip6_dst));
#endif
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) {
case IPV6_RTHDR_TYPE_0:
dp0 = (struct ip6_rthdr0 *)dp;
TCHECK(dp0->ip6r0_reserved);
if (dp0->ip6r0_reserved || vflag) {
printf(", rsv=0x%0x",
(u_int32_t)ntohl(dp0->ip6r0_reserved));
}
if (len % 2 == 1)
goto trunc;
len >>= 1;
for (i = 0; i < len; i++) {
struct in6_addr *addr;
addr = ((struct in6_addr *)(dp0 + 1)) + i;
if ((u_char *)addr > ep - sizeof(*addr))
goto trunc;
printf(", [%d]%s", i, ip6addr_string((u_char *)addr));
}
printf(")");
return((dp0->ip6r0_len + 1) << 3);
default:
if (bp + ((dp->ip6r_len + 1) << 3) > ep)
goto trunc;
printf(")");
return((dp->ip6r_len + 1) << 3);
}
trunc:
fputs(", [|srcrt]", stdout);
return 65535; /* XXX */
}
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