[PATCH net-next v18 04/25] ovpn: keep carrier always on for MP interfaces
From: Antonio Quartulli <antonio@openvpn.net>
Date: 2025-01-13 09:31:11
Also in:
linux-kselftest, lkml
Subsystem:
networking drivers, openvpn data channel offload, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Antonio Quartulli, Linus Torvalds
An ovpn interface configured in MP mode will keep carrier always on and let the user decide when to bring it administratively up and down. This way a MP node (i.e. a server) will keep its interface always up and running, even when no peer is connected. Signed-off-by: Antonio Quartulli <antonio@openvpn.net> --- drivers/net/ovpn/main.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/net/ovpn/main.c b/drivers/net/ovpn/main.c
index d3eebab7fa528cb648141021ab513c3ed687e698..97fcf284c06654a6581be592e45f77f0f78f566f 100644
--- a/drivers/net/ovpn/main.c
+++ b/drivers/net/ovpn/main.c@@ -23,6 +23,15 @@ static int ovpn_net_open(struct net_device *dev) { + struct ovpn_priv *ovpn = netdev_priv(dev); + + /* carrier for P2P interfaces is switched on and off when + * the peer is added or deleted. + * + * in case of P2MP interfaces we just keep the carrier always on + */ + if (ovpn->mode == OVPN_MODE_MP) + netif_carrier_on(dev); netif_tx_start_all_queues(dev); return 0; }
--
2.45.2