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authorPablo Neira Ayuso <pablo@netfilter.org>2008-11-18 11:54:05 +0100
committerPatrick McHardy <kaber@trash.net>2008-11-18 11:54:05 +0100
commit226c0c0ef2abdf91b8d9cce1aaf7d4635a5e5926 (patch)
treec1f5504d7942f0514ad38430668c8a7add4b7576 /include/net
parent4dc06f9633444f426ef9960c53426f2d2ded64ac (diff)
downloadop-kernel-dev-226c0c0ef2abdf91b8d9cce1aaf7d4635a5e5926.zip
op-kernel-dev-226c0c0ef2abdf91b8d9cce1aaf7d4635a5e5926.tar.gz
netfilter: ctnetlink: helper modules load-on-demand support
This patch adds module loading for helpers via ctnetlink. * Creation path: We support explicit and implicit helper assignation. For the explicit case, we try to load the module. If the module is correctly loaded and the helper is present, we return EAGAIN to re-start the creation. Otherwise, we return EOPNOTSUPP. * Update path: release the spin lock, load the module and check. If it is present, then return EAGAIN to re-start the update. This patch provides a refactorized function to lookup-and-set the connection tracking helper. The function removes the exported symbol __nf_ct_helper_find as it has not clients anymore. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/netfilter/nf_conntrack_helper.h5
1 files changed, 2 insertions, 3 deletions
diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h
index f8060ab..66d65a7 100644
--- a/include/net/netfilter/nf_conntrack_helper.h
+++ b/include/net/netfilter/nf_conntrack_helper.h
@@ -39,9 +39,6 @@ struct nf_conntrack_helper
};
extern struct nf_conntrack_helper *
-__nf_ct_helper_find(const struct nf_conntrack_tuple *tuple);
-
-extern struct nf_conntrack_helper *
__nf_conntrack_helper_find_byname(const char *name);
extern int nf_conntrack_helper_register(struct nf_conntrack_helper *);
@@ -49,6 +46,8 @@ extern void nf_conntrack_helper_unregister(struct nf_conntrack_helper *);
extern struct nf_conn_help *nf_ct_helper_ext_add(struct nf_conn *ct, gfp_t gfp);
+extern int __nf_ct_try_assign_helper(struct nf_conn *ct, gfp_t flags);
+
static inline struct nf_conn_help *nfct_help(const struct nf_conn *ct)
{
return nf_ct_ext_find(ct, NF_CT_EXT_HELPER);
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