[NETFILTER]: Add ctnetlink port for nf_conntrack

[h-e-n] / include / net / netfilter / nf_conntrack_protocol.h

diff --git a/include/net/netfilter/nf_conntrack_protocol.h b/include/net/netfilter/nf_conntrack_protocol.h
index b3afda3..1f33737 100644 (file)
--- a/include/net/netfilter/nf_conntrack_protocol.h
+++ b/include/net/netfilter/nf_conntrack_protocol.h
@@ -12,6 +12,7 @@
 #include <net/netfilter/nf_conntrack.h>
 
 struct seq_file;
+struct nfattr;
 
 struct nf_conntrack_protocol
 {
@@ -66,6 +67,18 @@ struct nf_conntrack_protocol
                     enum ip_conntrack_info *ctinfo,
                     int pf, unsigned int hooknum);
 
+       /* convert protoinfo to nfnetink attributes */
+       int (*to_nfattr)(struct sk_buff *skb, struct nfattr *nfa,
+                        const struct nf_conn *ct);
+
+       /* convert nfnetlink attributes to protoinfo */
+       int (*from_nfattr)(struct nfattr *tb[], struct nf_conn *ct);
+
+       int (*tuple_to_nfattr)(struct sk_buff *skb,
+                              const struct nf_conntrack_tuple *t);
+       int (*nfattr_to_tuple)(struct nfattr *tb[],
+                              struct nf_conntrack_tuple *t);
+
        /* Module (if any) which this is connected to. */
        struct module *me;
 };
@@ -80,12 +93,23 @@ extern struct nf_conntrack_protocol nf_conntrack_generic_protocol;
 extern struct nf_conntrack_protocol **nf_ct_protos[PF_MAX];
 
 extern struct nf_conntrack_protocol *
-nf_ct_find_proto(u_int16_t l3proto, u_int8_t protocol);
+__nf_ct_proto_find(u_int16_t l3proto, u_int8_t protocol);
+
+extern struct nf_conntrack_protocol *
+nf_ct_proto_find_get(u_int16_t l3proto, u_int8_t protocol);
+
+extern void nf_ct_proto_put(struct nf_conntrack_protocol *p);
 
 /* Protocol registration. */
 extern int nf_conntrack_protocol_register(struct nf_conntrack_protocol *proto);
 extern void nf_conntrack_protocol_unregister(struct nf_conntrack_protocol *proto);
 
+/* Generic netlink helpers */
+extern int nf_ct_port_tuple_to_nfattr(struct sk_buff *skb,
+                                     const struct nf_conntrack_tuple *tuple);
+extern int nf_ct_port_nfattr_to_tuple(struct nfattr *tb[],
+                                     struct nf_conntrack_tuple *t);
+
 /* Log invalid packets */
 extern unsigned int nf_ct_log_invalid;