netdev - Re: [PATCH] ip6tables: use skb->len for accounting

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Message-ID: <AANLkTi=PAVfcX4ttUsSgm+A_WMYcfXt4FLvYunccgtjS@mail.gmail.com>
Date:	Fri, 23 Jul 2010 21:05:31 +0800
From:	Changli Gao <xiaosuo@...il.com>
To:	Patrick McHardy <kaber@...sh.net>
Cc:	Jan Engelhardt <jengelh@...ozas.de>,
	"David S. Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	"Pekka Savola (ipv6)" <pekkas@...core.fi>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	netfilter-devel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH] ip6tables: use skb->len for accounting

On Fri, Jul 23, 2010 at 7:48 PM, Patrick McHardy <kaber@...sh.net> wrote:
> On 23.07.2010 08:38, Changli Gao wrote:
>>
>> For the packets received, ip_rcv, ipv6_rcv and bridge all call
>> pskb_trim_rcsum before feeding them to netfilter. The raw packets are
>> sent via dev_queue_xmit(), and they don't pass through the output path
>> of netfilter.
>
> That's not true, raw packets also pass through netfilter. However
> I agree that this patch makes sense to properly deal with jumbo
> frames, but you should also update xt_length for consistency.
>

In order to support jumbo frames, we have to change the type of min
and max in xt_length_info to u32. I'll change xt_match.revision to 1,
do I need to support the current revision 0 at the same time?

-- 
Regards,
Changli Gao(xiaosuo@...il.com)
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