ipvs: provide default ip_vs_conn_{in,out}_get_proto

This removes duplicate code by providing a default implementation
which is used by 3 of the 4 modules that provide these call.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 1f9e511..a4747a0 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -632,10 +632,22 @@
 (int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
  const union nf_inet_addr *d_addr, __be16 d_port);
 
+struct ip_vs_conn * ip_vs_conn_in_get_proto(int af, const struct sk_buff *skb,
+					    struct ip_vs_protocol *pp,
+					    const struct ip_vs_iphdr *iph,
+					    unsigned int proto_off,
+					    int inverse);
+
 extern struct ip_vs_conn *ip_vs_conn_out_get
 (int af, int protocol, const union nf_inet_addr *s_addr, __be16 s_port,
  const union nf_inet_addr *d_addr, __be16 d_port);
 
+struct ip_vs_conn * ip_vs_conn_out_get_proto(int af, const struct sk_buff *skb,
+					     struct ip_vs_protocol *pp,
+					     const struct ip_vs_iphdr *iph,
+					     unsigned int proto_off,
+					     int inverse);
+
 /* put back the conn without restarting its timer */
 static inline void __ip_vs_conn_put(struct ip_vs_conn *cp)
 {