bridge: implement rtnl_link_ops->get_slave_size and rtnl_link_ops->fill_slave_info

Allow rtnetlink users to get port info in IFLA_INFO_SLAVE_DATA attr

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 21 insertions, 6 deletions

diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index cb5fcf62f663..80d23471743f 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -461,6 +461,19 @@ static int br_dev_newlink(struct net *src_net, struct net_device *dev,
         return register_netdevice(dev);
 }
 
+static int br_port_fill_slave_info(struct sk_buff *skb,
+                                   const struct net_device *brdev,
+                                   const struct net_device *dev)
+{
+        return br_port_fill_attrs(skb, br_port_get_rtnl(dev));
+}
+
+static size_t br_port_get_slave_size(const struct net_device *brdev,
+                                     const struct net_device *dev)
+{
+        return br_port_info_size();
+}
+
 static size_t br_get_link_af_size(const struct net_device *dev)
 {
         struct net_port_vlans *pv;
@@ -485,12 +498,14 @@ static struct rtnl_af_ops br_af_ops = {
 };
 
 struct rtnl_link_ops br_link_ops __read_mostly = {
-        .kind           = "bridge",
-        .priv_size      = sizeof(struct net_bridge),
-        .setup          = br_dev_setup,
-        .validate       = br_validate,
-        .newlink        = br_dev_newlink,
-        .dellink        = br_dev_delete,
+        .kind                   = "bridge",
+        .priv_size              = sizeof(struct net_bridge),
+        .setup                  = br_dev_setup,
+        .validate               = br_validate,
+        .newlink                = br_dev_newlink,
+        .dellink                = br_dev_delete,
+        .get_slave_size         = br_port_get_slave_size,
+        .fill_slave_info        = br_port_fill_slave_info,
 };
 
 int __init br_netlink_init(void)