netdev - Re: [PATCH 6/6] net: move qdisc ingress filtering on top of netfilter ingress hooks

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Date:	Thu, 30 Apr 2015 06:05:37 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Jamal Hadi Salim <jhs@...atatu.com>
Cc:	Daniel Borkmann <daniel@...earbox.net>,
	Pablo Neira Ayuso <pablo@...filter.org>,
	netfilter-devel@...r.kernel.org, davem@...emloft.net,
	netdev@...r.kernel.org
Subject: Re: [PATCH 6/6] net: move qdisc ingress filtering on top of
 netfilter ingress hooks

On 30.04, Patrick McHardy wrote:
> Regarding TC as a whole, I think the problem is shared between userspace
> and the kernel. iproute TC is certainly completely failed, its unusable
> without looking at the kernel and iproute code, it hasn't even made the
> slightest infrastructrual progess in the past 15 years (*(u16)RTN_DATA(bla))?)
> and that is telling for itself. I don't extend that to ip, even though it
> suffers from the same coding problems, but let's be honest, do you really
> expect some magic is going to happen and TC userspace will suddenly become
> usable?
> 
> I don't. And we intend to provide an alternative.

For the sake of completeness - on ingress, this alternativ means simply
ditching TC. On egress, we will provide a nicely integrated way of qdiscs
and classifiers where nftables will obviously respect the qdiscs. On
ingress, there is simply no benefit in doing that at all. Hence Pablo's
patches.
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