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netfilter: synproxy: use nf_cookie_v6_check() from core 

This helper function is never used and it is intended to avoid a direct
dependency with the ipv6 module.

Fixes: d7f9b2f18e ("netfilter: synproxy: extract SYNPROXY infrastructure from {ipt, ip6t}_SYNPROXY")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2019-06-19 18:30:37 +02:00
parent 8527fa6cc6
commit 22f2efd337
1 changed files with 1 additions and 1 deletions
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2
net/netfilter/nf_synproxy_core.c
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@ -1056,7 +1056,7 @@ synproxy_recv_client_ack_ipv6(struct net *net,
struct synproxy_net *snet = synproxy_pernet(net);
int mss;
mss = __cookie_v6_check(ipv6_hdr(skb), th, ntohl(th->ack_seq) - 1);
mss = nf_cookie_v6_check(ipv6_hdr(skb), th, ntohl(th->ack_seq) - 1);
if (mss == 0) {
this_cpu_inc(snet->stats->cookie_invalid);
return false;