[NETFILTER]: nf_conntrack: split out protocol handling

This patch splits out L3/L4 protocol handling into its own file
nf_conntrack_proto.c

Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se>
Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 0 insertions, 116 deletions

diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index 73ca156bb09857..eb031d20e510fa 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -50,22 +50,6 @@ MODULE_LICENSE("GPL");
 extern atomic_t nf_conntrack_count;
 DECLARE_PER_CPU(struct ip_conntrack_stat, nf_conntrack_stat);
 
-static int kill_l3proto(struct nf_conn *i, void *data)
-{
-	return (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num == 
-			((struct nf_conntrack_l3proto *)data)->l3proto);
-}
-
-static int kill_proto(struct nf_conn *i, void *data)
-{
-	struct nf_conntrack_protocol *proto;
-	proto = (struct nf_conntrack_protocol *)data;
-	return (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum == 
-			proto->proto) &&
-	       (i->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num ==
-			proto->l3proto);
-}
-
 #ifdef CONFIG_PROC_FS
 int
 print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
@@ -585,106 +569,6 @@ static ctl_table nf_ct_net_table[] = {
 EXPORT_SYMBOL(nf_ct_log_invalid);
 #endif /* CONFIG_SYSCTL */
 
-int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto)
-{
-	int ret = 0;
-
-	write_lock_bh(&nf_conntrack_lock);
-	if (nf_ct_l3protos[proto->l3proto] != &nf_conntrack_generic_l3proto) {
-		ret = -EBUSY;
-		goto out;
-	}
-	nf_ct_l3protos[proto->l3proto] = proto;
-out:
-	write_unlock_bh(&nf_conntrack_lock);
-
-	return ret;
-}
-
-void nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto)
-{
-	write_lock_bh(&nf_conntrack_lock);
-	nf_ct_l3protos[proto->l3proto] = &nf_conntrack_generic_l3proto;
-	write_unlock_bh(&nf_conntrack_lock);
-	
-	/* Somebody could be still looking at the proto in bh. */
-	synchronize_net();
-
-	/* Remove all contrack entries for this protocol */
-	nf_ct_iterate_cleanup(kill_l3proto, proto);
-}
-
-/* FIXME: Allow NULL functions and sub in pointers to generic for
-   them. --RR */
-int nf_conntrack_protocol_register(struct nf_conntrack_protocol *proto)
-{
-	int ret = 0;
-
-retry:
-	write_lock_bh(&nf_conntrack_lock);
-	if (nf_ct_protos[proto->l3proto]) {
-		if (nf_ct_protos[proto->l3proto][proto->proto]
-				!= &nf_conntrack_generic_protocol) {
-			ret = -EBUSY;
-			goto out_unlock;
-		}
-	} else {
-		/* l3proto may be loaded latter. */
-		struct nf_conntrack_protocol **proto_array;
-		int i;
-
-		write_unlock_bh(&nf_conntrack_lock);
-
-		proto_array = (struct nf_conntrack_protocol **)
-				kmalloc(MAX_NF_CT_PROTO *
-					 sizeof(struct nf_conntrack_protocol *),
-					GFP_KERNEL);
-		if (proto_array == NULL) {
-			ret = -ENOMEM;
-			goto out;
-		}
-		for (i = 0; i < MAX_NF_CT_PROTO; i++)
-			proto_array[i] = &nf_conntrack_generic_protocol;
-
-		write_lock_bh(&nf_conntrack_lock);
-		if (nf_ct_protos[proto->l3proto]) {
-			/* bad timing, but no problem */
-			write_unlock_bh(&nf_conntrack_lock);
-			kfree(proto_array);
-		} else {
-			nf_ct_protos[proto->l3proto] = proto_array;
-			write_unlock_bh(&nf_conntrack_lock);
-		}
-
-		/*
-		 * Just once because array is never freed until unloading
-		 * nf_conntrack.ko
-		 */
-		goto retry;
-	}
-
-	nf_ct_protos[proto->l3proto][proto->proto] = proto;
-
-out_unlock:
-	write_unlock_bh(&nf_conntrack_lock);
-out:
-	return ret;
-}
-
-void nf_conntrack_protocol_unregister(struct nf_conntrack_protocol *proto)
-{
-	write_lock_bh(&nf_conntrack_lock);
-	nf_ct_protos[proto->l3proto][proto->proto]
-		= &nf_conntrack_generic_protocol;
-	write_unlock_bh(&nf_conntrack_lock);
-	
-	/* Somebody could be still looking at the proto in bh. */
-	synchronize_net();
-
-	/* Remove all contrack entries for this protocol */
-	nf_ct_iterate_cleanup(kill_proto, proto);
-}
-
 static int __init nf_conntrack_standalone_init(void)
 {
 #ifdef CONFIG_PROC_FS