--- zzzz-none-000/linux-2.6.28.10/include/net/ipip.h	2009-05-02 18:54:43.000000000 +0000
+++ fusiv-7390-686/linux-2.6.28.10/include/net/ipip.h	2012-02-14 14:37:49.000000000 +0000
@@ -7,8 +7,15 @@
 /* Keep error state on tunnel for 30 sec */
 #define IPTUNNEL_ERR_TIMEO	(30*HZ)
 
-struct ip_tunnel
-{
+/* 6rd prefix/relay information */
+struct ip_tunnel_6rd_parm {
+	struct in6_addr		prefix;
+	__be32			relay_prefix;
+	u16			prefixlen;
+	u16			relay_prefixlen;
+};
+
+struct ip_tunnel {
 	struct ip_tunnel	*next;
 	struct net_device	*dev;
 
@@ -24,6 +31,10 @@
 
 	struct ip_tunnel_parm	parms;
 
+	/* for SIT */
+#ifdef CONFIG_IPV6_SIT_6RD
+	struct ip_tunnel_6rd_parm	ip6rd;
+#endif
 	struct ip_tunnel_prl_entry	*prl;		/* potential router list */
 	unsigned int			prl_count;	/* # of entries in PRL */
 };