netfilter: don't attach a nat extension by default

nowadays the NAT extension only stores the interface index
(used to purge connections that got masqueraded when interface goes down)
and pptp nat information.

Previous patches moved nf_ct_nat_ext_add to those places that need it.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal
2017-04-20 10:11:35 +02:00
committed by Pablo Neira Ayuso
parent 2fe7c321ab
commit 9a08ecfe74
4 changed files with 3 additions and 13 deletions

View File

@@ -273,9 +273,7 @@ nf_nat_ipv6_fn(void *priv, struct sk_buff *skb,
if (!ct)
return NF_ACCEPT;
nat = nf_ct_nat_ext_add(ct);
if (nat == NULL)
return NF_ACCEPT;
nat = nfct_nat(ct);
switch (ctinfo) {
case IP_CT_RELATED: