netdev - Re: [RFC] COLO Proxy Module

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Message-ID: <20150630091905.GF17501@acer.localdomain>
Date:	Tue, 30 Jun 2015 11:19:05 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	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>,
	温 从洋 <wency@...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 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.

> 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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