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From: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
To: Phil Oester <kernel@linuxace.com>
Cc: coreteam@netfilter.org, xen-devel@lists.xensource.com,
	linux-kernel@vger.kernel.org, cedric@schieli.dyndns.org
Subject: Re: [PATCH] Avoid unncessary checksum validation in TCP/UDP netfilter
Date: Sat, 28 May 2005 09:48:50 +0100	[thread overview]
Message-ID: <875052371a3a7c5217e413d7250320f9@cl.cam.ac.uk> (raw)
In-Reply-To: <20050527112039.GA10084@linuxace.com>


On 27 May 2005, at 12:20, Phil Oester wrote:

> On Fri, May 27, 2005 at 12:03:08PM +0100, Keir Fraser wrote:
>> The TCP/UDP connection-tracking code in netfilter validates the
>> checksum of incoming packets, to prevent nastier errors further down
>> the road. This check is unnecessary if the skb is marked as
>> CHECKSUM_UNNECESSARY.
>
> It seems at least part of this has already been merged in 2.6.12-rc

It would be great if the UDP code also would observe 
CHECKSUM_UNNECESSARY. I'll wait for 2.6.12 to appear and then submit a 
new patch if UDP has been missed.

  Thanks,
  Keir


  reply	other threads:[~2005-05-28  8:52 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-27 11:03 Keir Fraser
2005-05-27 11:20 ` Phil Oester
2005-05-28  8:48   ` Keir Fraser [this message]
2005-06-12 15:06     ` [netfilter-core] " Patrick McHardy

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