ipv6: Add infrastructure to bind inet_peer objects to routes.

They are only allowed on cached ipv6 routes.

Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/ip6_fib.h

@@ -21,6 +21,7 @@
 #include <net/dst.h>
 #include <net/flow.h>
 #include <net/netlink.h>
+#include <net/inetpeer.h>
 
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
 #define FIB6_TABLE_HASHSZ 256
@@ -109,6 +110,7 @@ struct rt6_info {
 	u32				rt6i_metric;
 
 	struct inet6_dev		*rt6i_idev;
+	struct inet_peer		*rt6i_peer;
 
 #ifdef CONFIG_XFRM
 	u32				rt6i_flow_cache_genid;