netdev - Re: [PATCH] NETFILTER module xt_hmark new target for HASH MARK

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Message-ID: <4D4AD305.2060505@netfilter.org>
Date:	Thu, 03 Feb 2011 17:08:37 +0100
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	Jan Engelhardt <jengelh@...ozas.de>
CC:	Hans Schillstrom <hans.schillstrom@...csson.com>,
	"kaber@...sh.net" <kaber@...sh.net>,
	"netfilter-devel@...r.kernel.org" <netfilter-devel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"hans@...illstrom.com" <hans@...illstrom.com>
Subject: Re: [PATCH] NETFILTER module xt_hmark new target for HASH MARK

On 03/02/11 17:06, Jan Engelhardt wrote:
> On Thursday 2011-02-03 17:01, Pablo Neira Ayuso wrote:
> 
>> On 03/02/11 16:42, Pablo Neira Ayuso wrote:
>>> On 03/02/11 15:23, Hans Schillstrom wrote:
>>>> On Thu, 2011-02-03 at 14:51 +0100, Pablo Neira Ayuso wrote:
>>>>> On 03/02/11 14:34, Hans Schillstrom wrote:
>>>>> this assumption is not valid in NAT handlings.
>>>>
>>>> That's true, because I want to avoid conntrack
>>>>
>>>>> If you want consistent hashing with NAT handlings you'll have to make
>>>>> this stateful and use the conntrack source and reply directions of the
>>>>> original tuples (thus making it stateful). That may be a problem because
>>>>> some people may want to use this without enabling connection tracking.
>>>>
>>>> What about a compilation switch or a sysctl ?
>>>
>>> or better some option for iptables.
>>
>> Hm, this is actually not straight forward to implement, you'll have to
>> use hook functions to avoid the module dependencies with conntrack and
>> that's pretty annoying.
>>
>> I don't come up with a good solution for this.
> 
> If it loads conntrack always, there is the option to shovel it
> into xt_connmark.c.

the problem is that Hans wants this not to depend on conntrack always.
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