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netfilter: nf_conntrack: add nf_ct_timeout_lookup

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This patch adds the new nf_ct_timeout_lookup function to encapsulate
the timeout policy attachment that is called in the nf_conntrack_in
path.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2012-08-28 00:53:15 +00:00
commit 84b5ee939e
2 changed files with 21 additions and 6 deletions
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20
include/net/netfilter/nf_conntrack_timeout.h
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@ -55,6 +55,26 @@ struct nf_conn_timeout *nf_ct_timeout_ext_add(struct nf_conn *ct,
#endif
};
static inline unsigned int *
nf_ct_timeout_lookup(struct net *net, struct nf_conn *ct,
struct nf_conntrack_l4proto *l4proto)
{
#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
struct nf_conn_timeout *timeout_ext;
unsigned int *timeouts;
timeout_ext = nf_ct_timeout_find(ct);
if (timeout_ext)
timeouts = NF_CT_TIMEOUT_EXT_DATA(timeout_ext);
else
timeouts = l4proto->get_timeouts(net);
return timeouts;
#else
return l4proto->get_timeouts(net);
#endif
}
#ifdef CONFIG_NF_CONNTRACK_TIMEOUT
extern int nf_conntrack_timeout_init(struct net *net);
extern void nf_conntrack_timeout_fini(struct net *net);