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Commit a45253bf authored by Nicolas Dichtel's avatar Nicolas Dichtel Committed by David S. Miller
Browse files

veth: set iflink to the peer veth 



Now that the peer netns is advertised in rtnl messages, we can set this property
so that IFLA_LINK will advertise the peer ifindex. It allows the userland to get
the full veth configuration.

Signed-off-by: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e1622baf

drivers/net/veth.c

+15 −0
Original line number Diff line number Diff line
@@ -263,6 +263,20 @@ static void veth_poll_controller(struct net_device *dev) 
}

#endif	/* CONFIG_NET_POLL_CONTROLLER */



static int veth_get_iflink(const struct net_device *dev)

{

	struct veth_priv *priv = netdev_priv(dev);

	struct net_device *peer;

	int iflink;



	rcu_read_lock();

	peer = rcu_dereference(priv->peer);

	iflink = peer ? peer->ifindex : 0;

	rcu_read_unlock();



	return iflink;

}



static const struct net_device_ops veth_netdev_ops = {

	.ndo_init            = veth_dev_init,

	.ndo_open            = veth_open,
@@ -275,6 +289,7 @@ static const struct net_device_ops veth_netdev_ops = { 
#ifdef CONFIG_NET_POLL_CONTROLLER

	.ndo_poll_controller	= veth_poll_controller,

#endif

	.ndo_get_iflink		= veth_get_iflink,

};



#define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO |    \