From 8327a3baa9b0561a410d00b209aae621b5a61b1c Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Tue, 15 Apr 2025 13:17:21 +0200 Subject: [PATCH] ovpn: keep carrier always on for MP interfaces 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 Link: https://patch.msgid.link/20250415-b4-ovpn-v26-4-577f6097b964@openvpn.net Reviewed-by: Sabrina Dubroca Tested-by: Oleksandr Natalenko Signed-off-by: Paolo Abeni --- drivers/net/ovpn/main.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/net/ovpn/main.c b/drivers/net/ovpn/main.c index ea7dad374c00..fa1dd84be240 100644 --- a/drivers/net/ovpn/main.c +++ b/drivers/net/ovpn/main.c @@ -93,10 +93,18 @@ static int ovpn_newlink(struct net_device *dev, ovpn->dev = dev; ovpn->mode = mode; - /* turn carrier explicitly off after registration, this way state is - * clearly defined + /* Set carrier explicitly after registration, this way state is + * clearly defined. + * + * In case of MP interfaces we keep the carrier always on. + * + * Carrier for P2P interfaces is initially off and it is then + * switched on and off when the remote peer is added or deleted. */ - netif_carrier_off(dev); + if (ovpn->mode == OVPN_MODE_MP) + netif_carrier_on(dev); + else + netif_carrier_off(dev); return register_netdevice(dev); } -- 2.50.1