diff options
| author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2006-03-20 17:06:24 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2006-03-20 17:06:24 -0800 |
| commit | 70ceb4f53929f73746be72f73707cd9f8753e2fc (patch) | |
| tree | e562929b0c800b0243e203587065e05323baba59 /net/ipv6/ndisc.c | |
| parent | 52e1635631b342803aecaf81a362c1464e3da2e5 (diff) | |
| download | lwn-70ceb4f53929f73746be72f73707cd9f8753e2fc.tar.gz lwn-70ceb4f53929f73746be72f73707cd9f8753e2fc.zip | |
[IPV6]: ROUTE: Add experimental support for Route Information Option in RA (RFC4191).
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ndisc.c')
| -rw-r--r-- | net/ipv6/ndisc.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index f4462ee33024..1f6256909674 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -156,7 +156,11 @@ struct neigh_table nd_tbl = { /* ND options */ struct ndisc_options { - struct nd_opt_hdr *nd_opt_array[__ND_OPT_MAX]; + struct nd_opt_hdr *nd_opt_array[__ND_OPT_ARRAY_MAX]; +#ifdef CONFIG_IPV6_ROUTE_INFO + struct nd_opt_hdr *nd_opts_ri; + struct nd_opt_hdr *nd_opts_ri_end; +#endif }; #define nd_opts_src_lladdr nd_opt_array[ND_OPT_SOURCE_LL_ADDR] @@ -255,6 +259,13 @@ static struct ndisc_options *ndisc_parse_options(u8 *opt, int opt_len, if (ndopts->nd_opt_array[nd_opt->nd_opt_type] == 0) ndopts->nd_opt_array[nd_opt->nd_opt_type] = nd_opt; break; +#ifdef CONFIG_IPV6_ROUTE_INFO + case ND_OPT_ROUTE_INFO: + ndopts->nd_opts_ri_end = nd_opt; + if (!ndopts->nd_opts_ri) + ndopts->nd_opts_ri = nd_opt; + break; +#endif default: /* * Unknown options must be silently ignored, @@ -1202,6 +1213,18 @@ skip_defrtr: NEIGH_UPDATE_F_ISROUTER); } +#ifdef CONFIG_IPV6_ROUTE_INFO + if (ndopts.nd_opts_ri) { + struct nd_opt_hdr *p; + for (p = ndopts.nd_opts_ri; + p; + p = ndisc_next_option(p, ndopts.nd_opts_ri_end)) { + rt6_route_rcv(skb->dev, (u8*)p, (p->nd_opt_len) << 3, + &skb->nh.ipv6h->saddr); + } + } +#endif + if (in6_dev->cnf.accept_ra_pinfo && ndopts.nd_opts_pi) { struct nd_opt_hdr *p; for (p = ndopts.nd_opts_pi; |