netdev - Re: cgroup matches in INPUT chain

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Message-ID: <20150320161111.GA11498@breakpoint.cc>
Date:	Fri, 20 Mar 2015 17:11:11 +0100
From:	Florian Westphal <fw@...len.de>
To:	Daniel Mack <daniel@...que.org>
Cc:	Florian Westphal <fw@...len.de>,
	Daniel Borkmann <dborkman@...hat.com>,
	Alexey Perevalov <a.perevalov@...sung.com>,
	Pablo Neira Ayuso <pablo@...filter.org>,
	netdev <netdev@...r.kernel.org>
Subject: Re: cgroup matches in INPUT chain

Daniel Mack <daniel@...que.org> wrote:
> On 03/19/2015 07:58 PM, Florian Westphal wrote:
> > Daniel Mack <daniel@...que.org> wrote:
> >> In my tests, however, NF_INET_LOCAL_IN is iterated before early_demux()
> >> is called,
> > 
> > Early demux occurs after PRE_ROUTING but before LOCAL_IN.
> 
> Hmm, you're right, except it isn't in my case. I'm not familiar with
> that code, so please bear with me :)
> 
> In my simple test setup, when skbs are dequeued by process_backlog(),
> they have skb->_skb_refdst set, and hence ip_rcv_finish() does not call
> into early_demux() prior to iterating the INPUT chain:

Yes, because we already have a route set.

Are we talking about loopback?
What are you trying to do?
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