[IPV6]: Flag RTF_ANYCAST for anycast routes.

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

1 files changed, 9 insertions, 4 deletions

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 7c68bfbee361..66140f13d119 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -413,11 +413,14 @@ static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
         rt = ip6_rt_copy(ort);
 
         if (rt) {
-                ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);
-
-                if (!(rt->rt6i_flags&RTF_GATEWAY))
+                if (!(rt->rt6i_flags&RTF_GATEWAY)) {
+                        if (rt->rt6i_dst.plen != 128 &&
+                            ipv6_addr_equal(&rt->rt6i_dst.addr, daddr))
+                                rt->rt6i_flags |= RTF_ANYCAST;
                         ipv6_addr_copy(&rt->rt6i_gateway, daddr);
+                }
 
+                ipv6_addr_copy(&rt->rt6i_dst.addr, daddr);
                 rt->rt6i_dst.plen = 128;
                 rt->rt6i_flags |= RTF_CACHE;
                 rt->u.dst.flags |= DST_HOST;
@@ -1413,7 +1416,9 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
         rt->u.dst.obsolete = -1;
 
         rt->rt6i_flags = RTF_UP | RTF_NONEXTHOP;
-        if (!anycast)
+        if (anycast)
+                rt->rt6i_flags |= RTF_ANYCAST;
+        else
                 rt->rt6i_flags |= RTF_LOCAL;
         rt->rt6i_nexthop = ndisc_get_neigh(rt->rt6i_dev, &rt->rt6i_gateway);
         if (rt->rt6i_nexthop == NULL) {