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Commit 8d9e6d77 by Christian Brauner Committed by Stéphane Graber
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conf: retrieve mtu from netdev->link

When mtu is not set, try to retrieve mtu from netdev->link. Signed-off-by: 's avatarChristian Brauner <christian.brauner@canonical.com>
parent 8d74bafd
Showing with 7 additions and 2 deletions
src/lxc/conf.c
......@@ -2521,7 +2521,7 @@ static int instantiate_veth(struct lxc_handler *handler, struct lxc_netdev *netd
{
char veth1buf[IFNAMSIZ], *veth1;
char veth2buf[IFNAMSIZ], *veth2;
int err, mtu = 0;
int bridge_index, err, mtu = 0;
if (netdev->priv.veth_attr.pair) {
veth1 = netdev->priv.veth_attr.pair;
......@@ -2574,8 +2574,13 @@ static int instantiate_veth(struct lxc_handler *handler, struct lxc_netdev *netd
if (netdev->mtu) {
mtu = atoi(netdev->mtu);
INFO("Retrieved mtu %d", mtu);
} else if (netdev->link) {
mtu = netdev_get_mtu(netdev->ifindex);
bridge_index = if_nametoindex(netdev->link);
if (!bridge_index)
INFO("Could not retrieve mtu from %s", netdev->link);
mtu = netdev_get_mtu(bridge_index);
INFO("Retrieved mtu %d from %s", mtu, netdev->link);
}
if (mtu) {
......
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