netdev - Re: [PATCH 3/5] netfilter: add SYNPROXY core/target

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Date:	Thu, 8 Aug 2013 08:22:55 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Jesper Dangaard Brouer <jbrouer@...hat.com>
Cc:	pablo@...filter.org, netfilter-devel@...r.kernel.org,
	netdev@...r.kernel.org, mph@....com, as@....com
Subject: Re: [PATCH 3/5] netfilter: add SYNPROXY core/target

On Wed, Aug 07, 2013 at 10:56:03PM +0200, Patrick McHardy wrote:
> On Wed, Aug 07, 2013 at 10:26:00PM +0200, Jesper Dangaard Brouer wrote:
> > On Wed,  7 Aug 2013 19:42:49 +0200
> > Patrick McHardy <kaber@...sh.net> wrote:
> > 
> > Besides when using net->proc_net_stat, then the first entry is usually
> > "entries" which is not percpu, this will likely confusing the tool:
> >   lnstat -f synproxy -c 42
> 
> I'll look into that.

Ok right, the first field must contains something that is not per-CPU.
Unfortunately I don't have anything to put there and I really don't want
to keep any global state. The two possibilities I see are:

- a dummy field
- the number of proxied connections, but not using a global counter but
  gathered by iterating over the entire conntrack hash.

Any opinions?
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