diff options
| -rw-r--r-- | include/net/ip6_route.h | 3 | ||||
| -rw-r--r-- | net/ipv6/ndisc.c | 8 | ||||
| -rw-r--r-- | net/ipv6/route.c | 33 |
3 files changed, 29 insertions, 15 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 655e13017a45..cb6fb7e16a28 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -279,4 +279,7 @@ static inline bool rt6_duplicate_nexthop(struct rt6_info *a, struct rt6_info *b) !lwtunnel_cmp_encap(a->fib6_nh.nh_lwtstate, b->fib6_nh.nh_lwtstate); } +struct neighbour *ip6_neigh_lookup(const struct in6_addr *gw, + struct net_device *dev, struct sk_buff *skb, + const void *daddr); #endif diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index e4d9eea92139..556717154fa3 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1276,7 +1276,9 @@ static void ndisc_router_discovery(struct sk_buff *skb) rt = rt6_get_dflt_router(net, &ipv6_hdr(skb)->saddr, skb->dev); if (rt) { - neigh = dst_neigh_lookup(&rt->dst, &ipv6_hdr(skb)->saddr); + neigh = ip6_neigh_lookup(&rt->fib6_nh.nh_gw, + rt->fib6_nh.nh_dev, NULL, + &ipv6_hdr(skb)->saddr); if (!neigh) { ND_PRINTK(0, err, "RA: %s got default router without neighbour\n", @@ -1304,7 +1306,9 @@ static void ndisc_router_discovery(struct sk_buff *skb) return; } - neigh = dst_neigh_lookup(&rt->dst, &ipv6_hdr(skb)->saddr); + neigh = ip6_neigh_lookup(&rt->fib6_nh.nh_gw, + rt->fib6_nh.nh_dev, NULL, + &ipv6_hdr(skb)->saddr); if (!neigh) { ND_PRINTK(0, err, "RA: %s got default router without neighbour\n", diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 1a3e0db31b34..d635d71f7d51 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -182,12 +182,10 @@ static void rt6_uncached_list_flush_dev(struct net *net, struct net_device *dev) } } -static inline const void *choose_neigh_daddr(struct rt6_info *rt, +static inline const void *choose_neigh_daddr(const struct in6_addr *p, struct sk_buff *skb, const void *daddr) { - struct in6_addr *p = &rt->rt6i_gateway; - if (!ipv6_addr_any(p)) return (const void *) p; else if (skb) @@ -195,18 +193,27 @@ static inline const void *choose_neigh_daddr(struct rt6_info *rt, return daddr; } -static struct neighbour *ip6_neigh_lookup(const struct dst_entry *dst, - struct sk_buff *skb, - const void *daddr) +struct neighbour *ip6_neigh_lookup(const struct in6_addr *gw, + struct net_device *dev, + struct sk_buff *skb, + const void *daddr) { - struct rt6_info *rt = (struct rt6_info *) dst; struct neighbour *n; - daddr = choose_neigh_daddr(rt, skb, daddr); - n = __ipv6_neigh_lookup(dst->dev, daddr); + daddr = choose_neigh_daddr(gw, skb, daddr); + n = __ipv6_neigh_lookup(dev, daddr); if (n) return n; - return neigh_create(&nd_tbl, daddr, dst->dev); + return neigh_create(&nd_tbl, daddr, dev); +} + +static struct neighbour *ip6_dst_neigh_lookup(const struct dst_entry *dst, + struct sk_buff *skb, + const void *daddr) +{ + const struct rt6_info *rt = container_of(dst, struct rt6_info, dst); + + return ip6_neigh_lookup(&rt->rt6i_gateway, dst->dev, skb, daddr); } static void ip6_confirm_neigh(const struct dst_entry *dst, const void *daddr) @@ -214,7 +221,7 @@ static void ip6_confirm_neigh(const struct dst_entry *dst, const void *daddr) struct net_device *dev = dst->dev; struct rt6_info *rt = (struct rt6_info *)dst; - daddr = choose_neigh_daddr(rt, NULL, daddr); + daddr = choose_neigh_daddr(&rt->rt6i_gateway, NULL, daddr); if (!daddr) return; if (dev->flags & (IFF_NOARP | IFF_LOOPBACK)) @@ -239,7 +246,7 @@ static struct dst_ops ip6_dst_ops_template = { .update_pmtu = ip6_rt_update_pmtu, .redirect = rt6_do_redirect, .local_out = __ip6_local_out, - .neigh_lookup = ip6_neigh_lookup, + .neigh_lookup = ip6_dst_neigh_lookup, .confirm_neigh = ip6_confirm_neigh, }; @@ -269,7 +276,7 @@ static struct dst_ops ip6_dst_blackhole_ops = { .update_pmtu = ip6_rt_blackhole_update_pmtu, .redirect = ip6_rt_blackhole_redirect, .cow_metrics = dst_cow_metrics_generic, - .neigh_lookup = ip6_neigh_lookup, + .neigh_lookup = ip6_dst_neigh_lookup, }; static const u32 ip6_template_metrics[RTAX_MAX] = { |