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authorPablo Neira Ayuso <pablo@netfilter.org>2009-06-13 12:28:22 +0200
committerPatrick McHardy <kaber@trash.net>2009-06-13 12:28:22 +0200
commit9858a3ae1d4b390fbaa9c30b83cb66d861b76294 (patch)
tree897127b38a48de3c8c404431303614218ba2bc0f /net
parenta0891aa6a635f658f29bb061a00d6d3486941519 (diff)
downloadlinux-2.6.34-ux500-9858a3ae1d4b390fbaa9c30b83cb66d861b76294.tar.gz
netfilter: conntrack: move helper destruction to nf_ct_helper_destroy()
This patch moves the helper destruction to a function that lives in nf_conntrack_helper.c. This new function is used in the patch to add ctnetlink reliable event delivery. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net')
-rw-r--r--net/netfilter/nf_conntrack_core.c11
-rw-r--r--net/netfilter/nf_conntrack_helper.c14
2 files changed, 15 insertions, 10 deletions
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index bcacbb5373c..14235b144cb 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -224,17 +224,8 @@ static void death_by_timeout(unsigned long ul_conntrack)
{
struct nf_conn *ct = (void *)ul_conntrack;
struct net *net = nf_ct_net(ct);
- struct nf_conn_help *help = nfct_help(ct);
- struct nf_conntrack_helper *helper;
-
- if (help) {
- rcu_read_lock();
- helper = rcu_dereference(help->helper);
- if (helper && helper->destroy)
- helper->destroy(ct);
- rcu_read_unlock();
- }
+ nf_ct_helper_destroy(ct);
spin_lock_bh(&nf_conntrack_lock);
/* Inside lock so preempt is disabled on module removal path.
* Otherwise we can get spurious warnings. */
diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c
index 0fa5a422959..65c2a7bc3af 100644
--- a/net/netfilter/nf_conntrack_helper.c
+++ b/net/netfilter/nf_conntrack_helper.c
@@ -136,6 +136,20 @@ static inline int unhelp(struct nf_conntrack_tuple_hash *i,
return 0;
}
+void nf_ct_helper_destroy(struct nf_conn *ct)
+{
+ struct nf_conn_help *help = nfct_help(ct);
+ struct nf_conntrack_helper *helper;
+
+ if (help) {
+ rcu_read_lock();
+ helper = rcu_dereference(help->helper);
+ if (helper && helper->destroy)
+ helper->destroy(ct);
+ rcu_read_unlock();
+ }
+}
+
int nf_conntrack_helper_register(struct nf_conntrack_helper *me)
{
unsigned int h = helper_hash(&me->tuple);