netfilter: add protocol independent NAT core
Convert the IPv4 NAT implementation to a protocol independent core and
address family specific modules.
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index c613cf0..1dcf2a3 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -342,7 +342,7 @@
extern void nf_unregister_afinfo(const struct nf_afinfo *afinfo);
#include <net/flow.h>
-extern void (*ip_nat_decode_session)(struct sk_buff *, struct flowi *);
+extern void (*nf_nat_decode_session_hook)(struct sk_buff *, struct flowi *);
static inline void
nf_nat_decode_session(struct sk_buff *skb, struct flowi *fl, u_int8_t family)
@@ -350,13 +350,11 @@
#ifdef CONFIG_NF_NAT_NEEDED
void (*decodefn)(struct sk_buff *, struct flowi *);
- if (family == AF_INET) {
- rcu_read_lock();
- decodefn = rcu_dereference(ip_nat_decode_session);
- if (decodefn)
- decodefn(skb, fl);
- rcu_read_unlock();
- }
+ rcu_read_lock();
+ decodefn = rcu_dereference(nf_nat_decode_session_hook);
+ if (decodefn)
+ decodefn(skb, fl);
+ rcu_read_unlock();
#endif
}