netdev - Re: [RFC] COLO Proxy Module

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Message-ID: <5593C787.3070005@cn.fujitsu.com>
Date:	Wed, 1 Jul 2015 18:57:11 +0800
From:	Wen Congyang <wency@...fujitsu.com>
To:	Patrick McHardy <kaber@...sh.net>,
	Li Zhijian <lizhijian@...fujitsu.com>
CC:	<netfilter-devel@...r.kernel.org>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <pablo@...filter.org>,
	<kadlec@...ckhole.kfki.hu>, <davem@...emloft.net>,
	<coreteam@...filter.org>, Yang Hongyang <yanghy@...fujitsu.com>,
	zhanghailiang <zhang.zhanghailiang@...wei.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	"peter.huangpeng" <peter.huangpeng@...wei.com>,
	"Gonglei (Arei)" <arei.gonglei@...wei.com>
Subject: Re: [RFC] COLO Proxy Module

On 06/30/2015 05:19 PM, Patrick McHardy wrote:
> On 30.06, Li Zhijian wrote:
>> |ping...
>>
>> and i have another question:
>> can i add a new |||nf_ct_ext_id simply without touching the exiting kernel
>> code?|
> 
> No, the kernel needs to know the highest extension ID in order to
> allocate space for the offsets.

So if we want to add a new extension, we should post the module too. Is
it right?

Thanks
Wen Congyang

> 
>> in order to support COLO-Proxy, i need a extra nf_ct_ext_id called
>> "NF_CT_EXT_COLO"
>> to store some message of COLO related. This message can help COLO-Proxy to
>> buffer packet and compare packet for each connection.
>>
>> Thanks
>> Li Zhijian
> 
> Cheers,
> Patrick
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