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ovpn: keep carrier always on for MP interfaces

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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>
Link: https://patch.msgid.link/20250415-b4-ovpn-v26-4-577f6097b964@openvpn.net
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Antonio Quartulli 2025-04-15 13:17:21 +02:00 committed by Paolo Abeni
parent c2d950c467
commit 8327a3baa9
1 changed files with 11 additions and 3 deletions
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14
drivers/net/ovpn/main.c
View File

@ -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);
}