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-rw-r--r--include/linux/ipv6_route.h1
-rw-r--r--net/ipv6/route.c13
2 files changed, 10 insertions, 4 deletions
diff --git a/include/linux/ipv6_route.h b/include/linux/ipv6_route.h
index e2f93503801..d7c41d1d706 100644
--- a/include/linux/ipv6_route.h
+++ b/include/linux/ipv6_route.h
@@ -18,6 +18,7 @@
fallback, no routers on link */
#define RTF_ADDRCONF 0x00040000 /* addrconf route - RA */
#define RTF_PREFIX_RT 0x00080000 /* A prefix only route - RA */
+#define RTF_ANYCAST 0x00100000 /* Anycast */
#define RTF_NONEXTHOP 0x00200000 /* route with no nexthop */
#define RTF_EXPIRES 0x00400000
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 7c68bfbee36..66140f13d11 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) {