Re: [PATCH nf-next] netfilter: conntrack: remove helper hook again

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On Wed, Jan 09, 2019 at 11:12:47PM +0100, Pablo Neira Ayuso wrote:
> On Wed, Jan 09, 2019 at 05:19:34PM +0100, Florian Westphal wrote:
> > place them into the confirm one.
> > 
> > Old:
> >  hook (300): ipv4/6_help() first call helper, then seqadj.
> >  hook (INT_MAX): confirm
> > 
> > Now:
> >  hook (INT_MAX): confirm, first call helper, then seqadj, then confirm
> > 
> > Not having the extra call is noticeable in bechmarks.
> > 
> > Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
> > ---
> >  Pablo,
> > 
> >  I was unable to find out why you made this split in the first place.
> >  What use case breaks when there is no helper/seqadj at prio 300?
> 
> IIRC NF_QUEUE from userspace helper would skip conntrack confirmation,
> but there's using such verdict in the conntrack-tool.
             ^
           noone

> I would be fine if we just turn it into NF_DROP for this case and we
> get this patch merged upstream.



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