Merge branch 'net-2.6.26-isatap-20080403' of git://git.linux-ipv6.org/gitroot/yoshfuji/linux-2.6-dev

include/net/addrconf.h

@@ -71,6 +71,10 @@ extern int			ipv6_chk_addr(struct net *net,
 extern int			ipv6_chk_home_addr(struct net *net,
 						   struct in6_addr *addr);
 #endif
+
+extern int			ipv6_chk_prefix(struct in6_addr *addr,
+						struct net_device *dev);
+
 extern struct inet6_ifaddr      *ipv6_get_ifaddr(struct net *net,
 						 struct in6_addr *addr,
 						 struct net_device *dev,

include/net/ipip.h

@@ -24,6 +24,16 @@ struct ip_tunnel
 	int			mlink;
 
 	struct ip_tunnel_parm	parms;
+
+	struct ip_tunnel_prl_entry	*prl;		/* potential router list */
+	unsigned int			prl_count;	/* # of entries in PRL */
+};
+
+struct ip_tunnel_prl_entry
+{
+	struct ip_tunnel_prl_entry	*next;
+	__be32				addr;
+	u16				flags;
 };
 
 #define IPTUNNEL_XMIT() do {						\

include/net/ndisc.h

@@ -11,6 +11,15 @@
 #define NDISC_NEIGHBOUR_ADVERTISEMENT	136
 #define NDISC_REDIRECT			137
 
+/*
+ * Router type: cross-layer information from link-layer to
+ * IPv6 layer reported by certain link types (e.g., RFC4214).
+ */
+#define NDISC_NODETYPE_UNSPEC		0	/* unspecified (default) */
+#define NDISC_NODETYPE_HOST		1	/* host or unauthorized router */
+#define NDISC_NODETYPE_NODEFAULT	2	/* non-default router */
+#define NDISC_NODETYPE_DEFAULT		3	/* default router */
+
 /*
  *	ndisc options
  */