netdev - Re: [PATCH] packet: Allow packets with only a header (but no payload)

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Message-ID: <CAFBinCDZDYJGjimsAD=+HFokc9ga0cLBD1KSAieagzWQNH+s=w@mail.gmail.com>
Date:	Tue, 28 Jul 2015 00:35:56 +0200
From:	Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To:	Willem de Bruijn <willemb@...gle.com>
Cc:	Network Development <netdev@...r.kernel.org>,
	Eric Dumazet <edumazet@...gle.com>,
	Daniel Borkmann <dborkman@...hat.com>,
	David Miller <davem@...emloft.net>, johann.baudy@...-log.net
Subject: Re: [PATCH] packet: Allow packets with only a header (but no payload)

Hi Johann,

On Tue, Jul 21, 2015 at 6:51 PM, Willem de Bruijn <willemb@...gle.com> wrote:
> I don't see a simple way of verifying the safety of allowing packets
> without data short of a code audit, which would be huge, especially
> when taking device driver logic into account. Perhaps someone
> remembers why that statement was added and what edge case(s)
> it refers to. I'm afraid that I don't. It was added in 69e3c75f4d54. I
> added the author to this thread.
I know it's summer (and thus vacation-time), but did you already have
a chance to look into this?


Regards,
Martin
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