diff options
| author | Julian Anastasov <ja@ssi.bg> | 2017-02-06 23:14:15 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-02-07 13:07:46 -0500 |
| commit | 63fca65d08632fbec9d9b655f671cf08aa1aeeb8 (patch) | |
| tree | 103ac18cddcdf911a8589f52fbcefb7140411a51 /include/net/ndisc.h | |
| parent | c3a2e8370534f810cac6050169db0ed3e0f94f0b (diff) | |
net: add confirm_neigh method to dst_ops
Add confirm_neigh method to dst_ops and use it from IPv4 and IPv6
to lookup and confirm the neighbour. Its usage via the new helper
dst_confirm_neigh() should be restricted to MSG_PROBE users for
performance reasons.
For XFRM prefer the last tunnel address, if present. With help
from Steffen Klassert.
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ndisc.h')
| -rw-r--r-- | include/net/ndisc.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/net/ndisc.h b/include/net/ndisc.h index d562a2fe4860..8a0214654b6b 100644 --- a/include/net/ndisc.h +++ b/include/net/ndisc.h @@ -391,6 +391,23 @@ static inline struct neighbour *__ipv6_neigh_lookup(struct net_device *dev, cons return n; } +static inline void __ipv6_confirm_neigh(struct net_device *dev, + const void *pkey) +{ + struct neighbour *n; + + rcu_read_lock_bh(); + n = __ipv6_neigh_lookup_noref(dev, pkey); + if (n) { + unsigned long now = jiffies; + + /* avoid dirtying neighbour */ + if (n->confirmed != now) + n->confirmed = now; + } + rcu_read_unlock_bh(); +} + int ndisc_init(void); int ndisc_late_init(void); |