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authorJulian Anastasov <ja@ssi.bg>2017-02-07 00:14:12 +0300
committerDavid S. Miller <davem@davemloft.net>2017-02-07 21:07:46 +0300
commit4ff0620354f2b39b9fe2a91c22c4de9d1fba0c8e (patch)
tree1d29569c1059553f11c2da53df68f3698df92906 /drivers/net/vrf.c
parent9b8805a325591cf5b6b9df71200de25a2bd721fd (diff)
downloadlinux-4ff0620354f2b39b9fe2a91c22c4de9d1fba0c8e.tar.xz
net: add dst_pending_confirm flag to skbuff
Add new skbuff flag to allow protocols to confirm neighbour. When same struct dst_entry can be used for many different neighbours we can not use it for pending confirmations. Add sock_confirm_neigh() helper to confirm the neighbour and use it for IPv4, IPv6 and VRF before dst_neigh_output. Signed-off-by: Julian Anastasov <ja@ssi.bg> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vrf.c')
-rw-r--r--drivers/net/vrf.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 264fc1585b3c..630eafdb79e8 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -378,6 +378,7 @@ static int vrf_finish_output6(struct net *net, struct sock *sk,
if (unlikely(!neigh))
neigh = __neigh_create(&nd_tbl, nexthop, dst->dev, false);
if (!IS_ERR(neigh)) {
+ sock_confirm_neigh(skb, neigh);
ret = dst_neigh_output(dst, neigh, skb);
rcu_read_unlock_bh();
return ret;
@@ -574,8 +575,10 @@ static int vrf_finish_output(struct net *net, struct sock *sk, struct sk_buff *s
neigh = __ipv4_neigh_lookup_noref(dev, nexthop);
if (unlikely(!neigh))
neigh = __neigh_create(&arp_tbl, &nexthop, dev, false);
- if (!IS_ERR(neigh))
+ if (!IS_ERR(neigh)) {
+ sock_confirm_neigh(skb, neigh);
ret = dst_neigh_output(dst, neigh, skb);
+ }
rcu_read_unlock_bh();
err: