openvpn implements the `--mark` option, which utilizes the `SO_MARK`
Linux socket option. However, in the UDP code path, the socket's
`sk_mark` value is not currently propagated to `skb` objects that pass
through our socket.
This commit ensures proper inheritance of the field by assigning
`sk_mark` to `skb->mark` before handing the `skb` to the network stack
for transmission.
Signed-off-by: Ralf Lici <r...@mandelbit.com>
---
drivers/net/ovpn/udp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ovpn/udp.c b/drivers/net/ovpn/udp.c
index b4fbebad8f45..4f9c9a9a889a 100644
--- a/drivers/net/ovpn/udp.c
+++ b/drivers/net/ovpn/udp.c
@@ -344,6 +344,7 @@ void ovpn_udp_send_skb(struct ovpn_peer *peer, struct sock
*sk,
int ret;
skb->dev = peer->ovpn->dev;
+ skb->mark = READ_ONCE(sk->sk_mark);
/* no checksum performed at this layer */
skb->ip_summed = CHECKSUM_NONE;
--
2.49.0
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