netdev - Re: [PATCH] TCP MD5 and TSO/SG breakage

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Date:	Fri, 27 Jun 2008 11:28:15 -0700
From:	"Adam Langley" <agl@...erialviolet.org>
To:	"Stephen Hemminger" <stephen.hemminger@...tta.com>
Cc:	"David Miller" <davem@...emloft.net>,
	"吉藤英明" <yoshfuji@...ux-ipv6.org>,
	netdev@...r.kernel.org
Subject: Re: [PATCH] TCP MD5 and TSO/SG breakage

On Fri, Jun 27, 2008 at 11:21 AM, Stephen Hemminger
<stephen.hemminger@...tta.com> wrote:
> The TCP MD5 support is broken on any device that does scatter gather.
> The MD5 calculation code doesn't support scatter/gather, the md5_calc
> API assumes the data follows the TCP header. It is too late to rework this
> code for 2.6.26 (and backport to stable). So the sane thing to do is block
> use of SG on TCP sockets using MD5 option.

Acked-By: Adam Langley <agl@...erialviolet.org>


AGL

-- 
Adam Langley agl@...erialviolet.org http://www.imperialviolet.org
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