Hi Qingfang,
thanks for the patch!
On 27/04/2026 06:00, Qingfang Deng wrote:
After decapsulating a packet, the skb->mac_header still points to the
outer transport header. Call skb_reset_mac_header() in
ovpn_netdev_write() to ensure the MAC header points to the beginning of
the inner IP packet.
May you elaborate on what this is exactly fixing?
Did you encounter a bug triggered by this missing line?
I am asking because I wonder what is "expected" as MAC header for a
packet not having one at all (packets delivered to the ovpn interface
are L3 only, as per the interface type itself).
Thanks!
Regards,
Reported-by: Minqiang Chen <[email protected]>
Fixes: 8534731dbf2d ("ovpn: implement packet processing")
Signed-off-by: Qingfang Deng <[email protected]>
---
drivers/net/ovpn/io.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ovpn/io.c b/drivers/net/ovpn/io.c
index db43a1f8a07a..d92bb87be2b2 100644
--- a/drivers/net/ovpn/io.c
+++ b/drivers/net/ovpn/io.c
@@ -85,6 +85,7 @@ static void ovpn_netdev_write(struct ovpn_peer *peer, struct
sk_buff *skb)
skb_scrub_packet(skb, true);
/* network header reset in ovpn_decrypt_post() */
+ skb_reset_mac_header(skb);
skb_reset_transport_header(skb);
skb_reset_inner_headers(skb);
--
Antonio Quartulli
_______________________________________________
Openvpn-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/openvpn-devel
