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netfilter: ct_extend: define NF_CT_EXT_* as needed

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Less IDs make nf_ct_ext smaller.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Changli Gao 2010-11-15 12:23:24 +01:00 committed by Patrick McHardy
parent 76a2d3bcfc
commit e0e76c83be
3 changed files with 18 additions and 0 deletions
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8
include/net/netfilter/nf_conntrack_ecache.h
View File

@ -23,12 +23,17 @@ struct nf_conntrack_ecache {
static inline struct nf_conntrack_ecache *
nf_ct_ecache_find(const struct nf_conn *ct)
{
#ifdef CONFIG_NF_CONNTRACK_EVENTS
return nf_ct_ext_find(ct, NF_CT_EXT_ECACHE);
#else
return NULL;
#endif
}
static inline struct nf_conntrack_ecache *
nf_ct_ecache_ext_add(struct nf_conn *ct, u16 ctmask, u16 expmask, gfp_t gfp)
{
#ifdef CONFIG_NF_CONNTRACK_EVENTS
struct net *net = nf_ct_net(ct);
struct nf_conntrack_ecache *e;
@ -45,6 +50,9 @@ nf_ct_ecache_ext_add(struct nf_conn *ct, u16 ctmask, u16 expmask, gfp_t gfp)
e->expmask = expmask;
}
return e;
#else
return NULL;
#endif
};
#ifdef CONFIG_NF_CONNTRACK_EVENTS

6
include/net/netfilter/nf_conntrack_extend.h
View File

@ -7,10 +7,16 @@
enum nf_ct_ext_id {
NF_CT_EXT_HELPER,
#if defined(CONFIG_NF_NAT) || defined(CONFIG_NF_NAT_MODULE)
NF_CT_EXT_NAT,
#endif
NF_CT_EXT_ACCT,
#ifdef CONFIG_NF_CONNTRACK_EVENTS
NF_CT_EXT_ECACHE,
#endif
#ifdef CONFIG_NF_CONNTRACK_ZONES
NF_CT_EXT_ZONE,
#endif
NF_CT_EXT_NUM,
};

4
include/net/netfilter/nf_nat.h
View File

@ -84,7 +84,11 @@ extern int nf_nat_used_tuple(const struct nf_conntrack_tuple *tuple,
static inline struct nf_conn_nat *nfct_nat(const struct nf_conn *ct)
{
#if defined(CONFIG_NF_NAT) || defined(CONFIG_NF_NAT_MODULE)
return nf_ct_ext_find(ct, NF_CT_EXT_NAT);
#else
return NULL;
#endif
}
#else /* !__KERNEL__: iptables wants this to compile. */