Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux

[cascardo/linux.git] / drivers / net / vxlan.c

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 0d862a5..c55e316 100644 (file)
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -871,6 +871,9 @@ static int vxlan_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
        if (err)
                return err;
 
+       if (vxlan->default_dst.remote_ip.sa.sa_family != ip.sa.sa_family)
+               return -EAFNOSUPPORT;
+
        spin_lock_bh(&vxlan->hash_lock);
        err = vxlan_fdb_create(vxlan, addr, &ip, ndm->ndm_state, flags,
                               port, vni, ifindex, ndm->ndm_flags);
@@ -2601,9 +2604,10 @@ static int vxlan_newlink(struct net *net, struct net_device *dev,
        vni = nla_get_u32(data[IFLA_VXLAN_ID]);
        dst->remote_vni = vni;
 
+       /* Unless IPv6 is explicitly requested, assume IPv4 */
+       dst->remote_ip.sa.sa_family = AF_INET;
        if (data[IFLA_VXLAN_GROUP]) {
                dst->remote_ip.sin.sin_addr.s_addr = nla_get_be32(data[IFLA_VXLAN_GROUP]);
-               dst->remote_ip.sa.sa_family = AF_INET;
        } else if (data[IFLA_VXLAN_GROUP6]) {
                if (!IS_ENABLED(CONFIG_IPV6))
                        return -EPFNOSUPPORT;