vxlan: add ipv6 proxy support

This patch adds the IPv6 version of "arp_reduce", ndisc_send_na()
will be needed.

Cc: David S. Miller <davem@davemloft.net>
Cc: David Stevens <dlstevens@us.ibm.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 6 insertions, 4 deletions

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 1996a7c34f73..136fe55c1a47 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -56,6 +56,7 @@
 #include <net/transp_v6.h>
 #include <net/ip6_route.h>
 #include <net/addrconf.h>
+#include <net/ndisc.h>
 #ifdef CONFIG_IPV6_TUNNEL
 #include <net/ip6_tunnel.h>
 #endif
@@ -815,6 +816,7 @@ static const struct ipv6_stub ipv6_stub_impl = {
         .ipv6_sock_mc_drop = ipv6_sock_mc_drop,
         .ipv6_dst_lookup = ip6_dst_lookup,
         .udpv6_encap_enable = udpv6_encap_enable,
+        .ndisc_send_na = ndisc_send_na,
         .nd_tbl = &nd_tbl,
 };
 
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index bb6fd95a5cd1..14bd2f9d9dbb 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -461,10 +461,10 @@ static void ndisc_send_skb(struct sk_buff *skb,
         rcu_read_unlock();
 }
 
-static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
-                          const struct in6_addr *daddr,
-                          const struct in6_addr *solicited_addr,
-                          bool router, bool solicited, bool override, bool inc_opt)
+void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
+                   const struct in6_addr *daddr,
+                   const struct in6_addr *solicited_addr,
+                   bool router, bool solicited, bool override, bool inc_opt)
 {
         struct sk_buff *skb;
         struct in6_addr tmpaddr;