Commit 474c3c89 authored by Roopa Prabhu's avatar Roopa Prabhu Committed by David S. Miller
Browse files

vxlan: support for ndo_fdb_get 



This patch implements ndo_fdb_get for a vxlan device.

Signed-off-by: default avatarRoopa Prabhu <roopa@cumulusnetworks.com>
Reviewed-by: default avatarDavid Ahern <dsa@cumulusnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 47674562

drivers/net/vxlan.c

+34 −0
Original line number Diff line number Diff line
@@ -1152,6 +1152,39 @@ static int vxlan_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, 
	return err;

}



static int vxlan_fdb_get(struct sk_buff *skb,

			 struct nlattr *tb[],

			 struct net_device *dev,

			 const unsigned char *addr,

			 u16 vid, u32 portid, u32 seq,

			 struct netlink_ext_ack *extack)

{

	struct vxlan_dev *vxlan = netdev_priv(dev);

	struct vxlan_fdb *f;

	__be32 vni;

	int err;



	if (tb[NDA_VNI])

		vni = cpu_to_be32(nla_get_u32(tb[NDA_VNI]));

	else

		vni = vxlan->default_dst.remote_vni;



	rcu_read_lock();



	f = __vxlan_find_mac(vxlan, addr, vni);

	if (!f) {

		NL_SET_ERR_MSG(extack, "Fdb entry not found");

		err = -ENOENT;

		goto errout;

	}



	err = vxlan_fdb_info(skb, vxlan, f, portid, seq,

			     RTM_NEWNEIGH, 0, first_remote_rcu(f));

errout:

	rcu_read_unlock();

	return err;

}



/* Watch incoming packets to learn mapping between Ethernet address

 * and Tunnel endpoint.

 * Return true if packet is bogus and should be dropped.
@@ -2805,6 +2838,7 @@ static const struct net_device_ops vxlan_netdev_ether_ops = { 
	.ndo_fdb_add		= vxlan_fdb_add,

	.ndo_fdb_del		= vxlan_fdb_delete,

	.ndo_fdb_dump		= vxlan_fdb_dump,

	.ndo_fdb_get		= vxlan_fdb_get,

	.ndo_fill_metadata_dst	= vxlan_fill_metadata_dst,

};