linux-kernel - Re: [PATCH] af_packet: Handle outgoing VLAN packets without hardware offloading

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Message-ID: <5bbaf136-5409-4256-b4a4-1ac8ba501b26@orange.com>
Date: Mon, 27 May 2024 02:18:26 +0200
From: alexandre.ferrieux@...nge.com
To: Willem de Bruijn <willemdebruijn.kernel@...il.com>,
 Chengen Du <chengen.du@...onical.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] af_packet: Handle outgoing VLAN packets without hardware
 offloading

On 26/05/2024 17:25, Willem de Bruijn wrote:
> I don't think a new DLT_LINUX_SLL3 is a solution. The application
> just wants to receive the full L2.5 header, not yet another parsed
> version

Yes, I did not intend any parsing either: the SLLvx should end with the ethtype 
(the one that occurs right after the MAC addresses in Ethernet). But I was just 
pointing out that it is a pity that SSLv1 and SSLv2 only keep the source MAC 
address when all physical interfaces in a system are Ethernet. Why not keep the 
whole MAC header ?
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