return p;
}
-static inline const void *choose_neigh_daddr(struct rt6_info *rt, const void *daddr)
+static inline const void *choose_neigh_daddr(struct rt6_info *rt,
+ 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)
+ return &ipv6_hdr(skb)->daddr;
return daddr;
}
-static struct neighbour *ip6_neigh_lookup(const struct dst_entry *dst, const void *daddr)
+static struct neighbour *ip6_neigh_lookup(const struct dst_entry *dst,
+ struct sk_buff *skb,
+ const void *daddr)
{
struct rt6_info *rt = (struct rt6_info *) dst;
struct neighbour *n;
- daddr = choose_neigh_daddr(rt, daddr);
+ daddr = choose_neigh_daddr(rt, skb, daddr);
n = __ipv6_neigh_lookup(&nd_tbl, dst->dev, daddr);
if (n)
return n;
if (IS_ERR(n))
return PTR_ERR(n);
}
- dst_set_neighbour(&rt->dst, n);
+ rt->n = n;
return 0;
}
0, 0, flags);
if (rt) {
- memset(&rt->rt6i_table, 0,
+ memset(&rt->n, 0,
sizeof(*rt) - sizeof(struct dst_entry));
rt6_init_peer(rt, table ? &table->tb6_peers : net->ipv6.peers);
}
struct rt6_info *rt = (struct rt6_info *)dst;
struct inet6_dev *idev = rt->rt6i_idev;
+ if (rt->n)
+ neigh_release(rt->n);
+
if (!(rt->dst.flags & DST_HOST))
dst_destroy_metrics_generic(dst);
struct net_device *loopback_dev =
dev_net(dev)->loopback_dev;
- if (dev != loopback_dev && idev && idev->dev == dev) {
- struct inet6_dev *loopback_idev =
- in6_dev_get(loopback_dev);
- if (loopback_idev) {
- rt->rt6i_idev = loopback_idev;
- in6_dev_put(idev);
+ if (dev != loopback_dev) {
+ if (idev && idev->dev == dev) {
+ struct inet6_dev *loopback_idev =
+ in6_dev_get(loopback_dev);
+ if (loopback_idev) {
+ rt->rt6i_idev = loopback_idev;
+ in6_dev_put(idev);
+ }
+ }
+ if (rt->n && rt->n->dev == dev) {
+ rt->n->dev = loopback_dev;
+ dev_hold(loopback_dev);
+ dev_put(dev);
}
}
}
* to no more than one per minute.
*/
rcu_read_lock();
- neigh = rt ? dst_get_neighbour_noref(&rt->dst) : NULL;
+ neigh = rt ? rt->n : NULL;
if (!neigh || (neigh->nud_state & NUD_VALID))
goto out;
read_lock_bh(&neigh->lock);
int m;
rcu_read_lock();
- neigh = dst_get_neighbour_noref(&rt->dst);
+ neigh = rt->n;
if (rt->rt6i_flags & RTF_NONEXTHOP ||
!(rt->rt6i_flags & RTF_GATEWAY))
m = 1;
if (rt) {
rt->rt6i_flags |= RTF_CACHE;
- dst_set_neighbour(&rt->dst, neigh_clone(dst_get_neighbour_noref_raw(&ort->dst)));
+ rt->n = neigh_clone(ort->n);
}
return rt;
}
dst_hold(&rt->dst);
read_unlock_bh(&table->tb6_lock);
- if (!dst_get_neighbour_noref_raw(&rt->dst) && !(rt->rt6i_flags & RTF_NONEXTHOP))
+ if (!rt->n && !(rt->rt6i_flags & RTF_NONEXTHOP))
nrt = rt6_alloc_cow(rt, &fl6->daddr, &fl6->saddr);
else if (!(rt->dst.flags & DST_HOST))
nrt = rt6_alloc_clone(rt, &fl6->daddr);
if (neigh)
neigh_hold(neigh);
else {
- neigh = ip6_neigh_lookup(&rt->dst, &fl6->daddr);
+ neigh = ip6_neigh_lookup(&rt->dst, NULL, &fl6->daddr);
if (IS_ERR(neigh)) {
in6_dev_put(idev);
dst_free(&rt->dst);
rt->dst.flags |= DST_HOST;
rt->dst.output = ip6_output;
- dst_set_neighbour(&rt->dst, neigh);
+ rt->n = neigh;
atomic_set(&rt->dst.__refcnt, 1);
rt->rt6i_dst.addr = fl6->daddr;
rt->rt6i_dst.plen = 128;
struct rt6_info *rt, *nrt = NULL;
struct netevent_redirect netevent;
struct net *net = dev_net(neigh->dev);
+ struct neighbour *old_neigh;
rt = ip6_route_redirect(dest, src, saddr, neigh->dev);
dst_confirm(&rt->dst);
/* Duplicate redirect: silently ignore. */
- if (neigh == dst_get_neighbour_noref_raw(&rt->dst))
+ old_neigh = rt->n;
+ if (neigh == old_neigh)
goto out;
nrt = ip6_rt_copy(rt, dest);
nrt->rt6i_flags &= ~RTF_GATEWAY;
nrt->rt6i_gateway = *(struct in6_addr *)neigh->primary_key;
- dst_set_neighbour(&nrt->dst, neigh_clone(neigh));
+ nrt->n = neigh_clone(neigh);
if (ip6_ins_rt(nrt))
goto out;
netevent.old = &rt->dst;
+ netevent.old_neigh = old_neigh;
netevent.new = &nrt->dst;
+ netevent.new_neigh = neigh;
+ netevent.daddr = dest;
call_netevent_notifiers(NETEVENT_REDIRECT, &netevent);
if (rt->rt6i_flags & RTF_CACHE) {
goto nla_put_failure;
rcu_read_lock();
- n = dst_get_neighbour_noref(&rt->dst);
+ n = rt->n;
if (n) {
if (nla_put(skb, RTA_GATEWAY, 16, &n->primary_key) < 0) {
rcu_read_unlock();
seq_puts(m, "00000000000000000000000000000000 00 ");
#endif
rcu_read_lock();
- n = dst_get_neighbour_noref(&rt->dst);
+ n = rt->n;
if (n) {
seq_printf(m, "%pi6", n->primary_key);
} else {