netdev - Re: [v4 PATCH 1/1] netfilter: Add fail-open support

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Message-ID: <OF40A553D6.951AAA8B-ON65257A08.003B5B83-65257A08.003B7B3A@in.ibm.com>
Date:	Thu, 24 May 2012 16:19:07 +0530
From:	Krishna Kumar2 <krkumar2@...ibm.com>
To:	Pablo Neira Ayuso <pablo@...filter.org>
Cc:	davem <davem@...emloft.net>, Eric Dumazet <eric.dumazet@...il.com>,
	fw@...len.de, kaber@...sh.net, netdev <netdev@...r.kernel.org>,
	netfilter-devel@...r.kernel.org, sri@...ibm.com,
	Sulakshan Vajipayajula <svajipay@...ibm.com>, vivk@...ibm.com
Subject: Re: [v4 PATCH 1/1] netfilter: Add fail-open support

Pablo Neira Ayuso <pablo@...filter.org> wrote on 05/24/2012 04:11:56 PM:

> On Thu, May 24, 2012 at 12:17:55PM +0200, Pablo Neira Ayuso wrote:
> > My main objection with this patch is that it adds more code out of the
> > scope of the nf_queue handling to nf_hook_slow. And this is done for
> > very specific purpose.
> >
> > @David, @Eric: Krishna aims to provide a mechanism that can be enabled
> > to accept packets if the nfqueue becomes full, ie. it changes the
> > default behaviour under congestion from drop to accept. It seems some
> > users prefer not to block traffic under nfqueue congestion.
>
> Florian Westphal just proposed some possible interesting solution for
> this.

Yes, and I have just finished testing this and it works fine. With
this, all the changes are localized to nfnetlink_queue.c. I am doing
some more tests before resubmitting this.

thanks,
- KK

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