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vxlan: support for ndo_fdb_get

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This patch implements ndo_fdb_get for a vxlan device.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Reviewed-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Roopa Prabhu 2018-12-15 22:35:10 -08:00 committed by David S. Miller
parent 4767456212
commit 474c3c896f
1 changed files with 34 additions and 0 deletions
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34
drivers/net/vxlan.c
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@ -1152,6 +1152,39 @@ out:
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,
};