X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fnet%2Finet_sock.h;h=70013c5f4e59aba0d83f7e99df4da8898d94b05f;hb=c2a7dcad9f0d92d7a96e735abb8bec7b9c621536;hp=ce6da97bc8489d4fc1e5d8838f0dd3541a78cfc5;hpb=5a3e3b2230980cf2ce6e5e56b816dde19b993939;p=linux-2.6

diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index ce6da97bc8..70013c5f4e 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -19,10 +19,12 @@
 
 #include <linux/string.h>
 #include <linux/types.h>
+#include <linux/jhash.h>
 
 #include <net/flow.h>
 #include <net/sock.h>
 #include <net/request_sock.h>
+#include <net/route.h>
 
 /** struct ip_options - IP Options
  *
@@ -167,13 +169,15 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to,
 
 extern int inet_sk_rebuild_header(struct sock *sk);
 
+extern u32 inet_ehash_secret;
+extern void build_ehash_secret(void);
+
 static inline unsigned int inet_ehashfn(const __be32 laddr, const __u16 lport,
 					const __be32 faddr, const __be16 fport)
 {
-	unsigned int h = ((__force __u32)laddr ^ lport) ^ ((__force __u32)faddr ^ (__force __u32)fport);
-	h ^= h >> 16;
-	h ^= h >> 8;
-	return h;
+	return jhash_2words((__force __u32) laddr ^ (__force __u32) faddr,
+			    ((__u32) lport) << 16 | (__force __u32)fport,
+			    inet_ehash_secret);
 }
 
 static inline int inet_sk_ehashfn(const struct sock *sk)
@@ -187,4 +191,10 @@ static inline int inet_sk_ehashfn(const struct sock *sk)
 	return inet_ehashfn(laddr, lport, faddr, fport);
 }
 
+
+static inline int inet_iif(const struct sk_buff *skb)
+{
+	return ((struct rtable *)skb->dst)->rt_iif;
+}
+
 #endif	/* _INET_SOCK_H */