diff options
| -rw-r--r-- | net/ipv6/ndisc.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 53b546019fd..16273e11e53 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1272,7 +1272,13 @@ skip_linkparms: for (p = ndopts.nd_opts_ri; p; p = ndisc_next_option(p, ndopts.nd_opts_ri_end)) { - if (((struct route_info *)p)->prefix_len > in6_dev->cnf.accept_ra_rt_info_max_plen) + struct route_info *ri = (struct route_info *)p; +#ifdef CONFIG_IPV6_NDISC_NODETYPE + if (skb->ndisc_nodetype == NDISC_NODETYPE_NODEFAULT && + ri->prefix_len == 0) + continue; +#endif + if (ri->prefix_len > in6_dev->cnf.accept_ra_rt_info_max_plen) continue; rt6_route_rcv(skb->dev, (u8*)p, (p->nd_opt_len) << 3, &ipv6_hdr(skb)->saddr); |