1 files changed, 50 insertions, 6 deletions

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index d6bd843..322112c 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -33,12 +33,6 @@
 
 #define MACVLAN_HASH_SIZE	(1 << BITS_PER_BYTE)
 
-enum macvlan_mode {
-	MACVLAN_MODE_PRIVATE	= 1,
-	MACVLAN_MODE_VEPA	= 2,
-	MACVLAN_MODE_BRIDGE	= 4,
-};
-
 struct macvlan_port {
 	struct net_device	*dev;
 	struct hlist_head	vlan_hash[MACVLAN_HASH_SIZE];
@@ -614,6 +608,17 @@ static int macvlan_validate(struct nlattr *tb[], struct nlattr *data[])
 		if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
 			return -EADDRNOTAVAIL;
 	}
+
+	if (data && data[IFLA_MACVLAN_MODE]) {
+		switch (nla_get_u32(data[IFLA_MACVLAN_MODE])) {
+		case MACVLAN_MODE_PRIVATE:
+		case MACVLAN_MODE_VEPA:
+		case MACVLAN_MODE_BRIDGE:
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
 	return 0;
 }
 
@@ -678,6 +683,10 @@ static int macvlan_newlink(struct net *src_net, struct net_device *dev,
 	vlan->dev      = dev;
 	vlan->port     = port;
 
+	vlan->mode     = MACVLAN_MODE_VEPA;
+	if (data && data[IFLA_MACVLAN_MODE])
+		vlan->mode = nla_get_u32(data[IFLA_MACVLAN_MODE]);
+
 	err = register_netdevice(dev);
 	if (err < 0)
 		return err;
@@ -699,6 +708,36 @@ static void macvlan_dellink(struct net_device *dev, struct list_head *head)
 		macvlan_port_destroy(port->dev);
 }
 
+static int macvlan_changelink(struct net_device *dev,
+		struct nlattr *tb[], struct nlattr *data[])
+{
+	struct macvlan_dev *vlan = netdev_priv(dev);
+	if (data && data[IFLA_MACVLAN_MODE])
+		vlan->mode = nla_get_u32(data[IFLA_MACVLAN_MODE]);
+	return 0;
+}
+
+static size_t macvlan_get_size(const struct net_device *dev)
+{
+	return nla_total_size(4);
+}
+
+static int macvlan_fill_info(struct sk_buff *skb,
+				const struct net_device *dev)
+{
+	struct macvlan_dev *vlan = netdev_priv(dev);
+
+	NLA_PUT_U32(skb, IFLA_MACVLAN_MODE, vlan->mode);
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
+static const struct nla_policy macvlan_policy[IFLA_MACVLAN_MAX + 1] = {
+	[IFLA_MACVLAN_MODE] = { .type = NLA_U32 },
+};
+
 static struct rtnl_link_ops macvlan_link_ops __read_mostly = {
 	.kind		= "macvlan",
 	.priv_size	= sizeof(struct macvlan_dev),
@@ -707,6 +746,11 @@ static struct rtnl_link_ops macvlan_link_ops __read_mostly = {
 	.validate	= macvlan_validate,
 	.newlink	= macvlan_newlink,
 	.dellink	= macvlan_dellink,
+	.maxtype	= IFLA_MACVLAN_MAX,
+	.policy		= macvlan_policy,
+	.changelink	= macvlan_changelink,
+	.get_size	= macvlan_get_size,
+	.fill_info	= macvlan_fill_info,
 };
 
 static int macvlan_device_event(struct notifier_block *unused,