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authorPatrick McHardy <kaber@trash.net>2006-03-20 18:03:59 -0800
committerDavid S. Miller <davem@davemloft.net>2006-03-20 18:03:59 -0800
commita24276924875802853b5bdc12c56d29f1c1bbc79 (patch)
tree5725689bf434004143ae875bbfee3d3d29ddcdb0 /include/linux/netfilter
parent[NETFILTER]: x_tables: replace IPv4/IPv6 policy match by address family independant version (diff)
downloadlinux-dev-a24276924875802853b5bdc12c56d29f1c1bbc79.tar.xz
linux-dev-a24276924875802853b5bdc12c56d29f1c1bbc79.zip
[NETFILTER]: ctnetlink: avoid unneccessary event message generation
Avoid unneccessary event message generation by checking for netlink listeners before building a message. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netfilter')
-rw-r--r--include/linux/netfilter/nfnetlink.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 934a2479f160..9f5b12cf489b 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -164,6 +164,7 @@ extern void nfattr_parse(struct nfattr *tb[], int maxattr,
__res; \
})
+extern int nfnetlink_has_listeners(unsigned int group);
extern int nfnetlink_send(struct sk_buff *skb, u32 pid, unsigned group,
int echo);
extern int nfnetlink_unicast(struct sk_buff *skb, u_int32_t pid, int flags);