From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pablo Neira Ayuso <pablo@netfilter.org>
Subject: Re: [RFC PATCH v2 6/6] src: add events reporting
Date: Wed, 26 Feb 2014 18:27:14 +0100
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To: Arturo Borrero Gonzalez <arturo.borrero.glez@gmail.com>
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On Wed, Feb 26, 2014 at 06:17:36PM +0100, Arturo Borrero Gonzalez wrote:
> On 26 February 2014 17:10, Arturo Borrero Gonzalez
> <arturo.borrero.glez@gmail.com> wrote:
> >
> > +
> > +       /* XXXX */
> > +       sleep(1);
> > +
> > +       /* only way, by now, to know set_elems (no set_elem events) */
> > +       if (netlink_get_setelems(&set_tmpctx, &s->handle, monh->loc, s) < 0)
> > +               goto out;
> > +
> 
> About this:
> 
> it seems that I can't query the kernel just after the set is created,
> because I get an empty set.

I see. Since sets are first created then elements are added, I think
you have to make a kernel patch to add set element events.