xfrm: Introduce xfrm_input_afinfo to access the the callbacks properly
IPv6 can be build as a module, so we need mechanism to access
the address family dependent callback functions properly.
Therefore we introduce xfrm_input_afinfo, similar to that
what we have for the address family dependent part of
policies and states.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index ce3d96f..af13599 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -349,6 +349,16 @@
struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family);
void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo);
+struct xfrm_input_afinfo {
+ unsigned int family;
+ struct module *owner;
+ int (*callback)(struct sk_buff *skb, u8 protocol,
+ int err);
+};
+
+int xfrm_input_register_afinfo(struct xfrm_input_afinfo *afinfo);
+int xfrm_input_unregister_afinfo(struct xfrm_input_afinfo *afinfo);
+
void xfrm_state_delete_tunnel(struct xfrm_state *x);
struct xfrm_type {
@@ -1392,6 +1402,7 @@
int xfrm_state_init(struct net *net);
void xfrm_state_fini(struct net *net);
void xfrm4_state_init(void);
+void xfrm4_protocol_init(void);
#ifdef CONFIG_XFRM
int xfrm6_init(void);
void xfrm6_fini(void);
@@ -1773,18 +1784,6 @@
return ret;
}
-static inline int xfrm_rcv_cb(struct sk_buff *skb, unsigned int family,
- u8 protocol, int err)
-{
- switch(family) {
-#ifdef CONFIG_INET
- case AF_INET:
- return xfrm4_rcv_cb(skb, protocol, err);
-#endif
- }
- return 0;
-}
-
static inline int xfrm_tunnel_check(struct sk_buff *skb, struct xfrm_state *x,
unsigned int family)
{