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netfilter: xtables: add CT target

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Add a new target for the raw table, which can be used to specify conntrack
parameters for specific connections, f.i. the conntrack helper.

The target attaches a "template" connection tracking entry to the skb, which
is used by the conntrack core when initializing a new conntrack.

Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Patrick McHardy
2010-02-03 17:17:06 +01:00
parent b2a15a604d
commit 84f3bb9ae9
7 changed files with 211 additions and 0 deletions
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3
include/net/netfilter/nf_conntrack_helper.h
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@@ -42,6 +42,9 @@ struct nf_conntrack_helper {
extern struct nf_conntrack_helper *
__nf_conntrack_helper_find(const char *name, u16 l3num, u8 protonum);
extern struct nf_conntrack_helper *
nf_conntrack_helper_try_module_get(const char *name, u16 l3num, u8 protonum);
extern int nf_conntrack_helper_register(struct nf_conntrack_helper *);
extern void nf_conntrack_helper_unregister(struct nf_conntrack_helper *);