ipv6: Assume the loopback address in link-local scope.

Handle interface property strictly when looking up a route
for the loopback address (RFC4291 2.5.3).

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 751e98f9b8b40fc5d2b5d797038a85a20cb3c121..dbad96c58baa0dd0a81497f1c554aa2eaff91956 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -228,7 +228,7 @@ static __inline__ int rt6_check_expired(const struct rt6_info *rt)
 static inline int rt6_need_strict(struct in6_addr *daddr)
 {
        return (ipv6_addr_type(daddr) &
-               (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL));
+               (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK));
 }
 
 /*