From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Daniel Mack <daniel@zonque.org>
Cc: fw@strlen.de, daniel@iogearbox.net, a.perevalov@samsung.com,
netfilter-devel@vger.kernel.org
Subject: Re: [PATCH nf-next 0/3] netfilter: socket lookup function refactoring, cgroup match fixes
Date: Wed, 17 Jun 2015 12:34:09 +0200 [thread overview]
Message-ID: <20150617103409.GB3365@salvia> (raw)
In-Reply-To: <5581387A.2060709@zonque.org>
On Wed, Jun 17, 2015 at 11:06:02AM +0200, Daniel Mack wrote:
> Hi Pablo,
>
> Thanks a lot for the feedback!
>
> On 06/17/2015 03:03 AM, Pablo Neira Ayuso wrote:
[...]
>
> Yeah, right. The thing is that cgroup matching is an incredible useful
> feature. It's a pity it isn't currently usable for ingress packets.
>
> > The possible ideas that we (Patrick and me) have discussed boil down to:
> >
> > 1) Placing the INPUT hook at later stage, from the layer 4 protocols.
>
> That would be great, but the consequences for other matching functions
> are beyond my current knowledge of the netfilter code.
>
> > or
> >
> > 2) Add a new socket hook in the path from layer 4 protocols.
> >
> > In both cases, the idea is that we're always 100% sure that we have a
> > valid sk in place, including UDP multicast.
>
> That sounds reasonable too. That option would at least work for nft
> then, right? Is anyone working on that yet?
Not yet, but Daniel Borkmann will likely bring up this issue during
the Netfilter Workshop that will happen the next week.
next prev parent reply other threads:[~2015-06-17 10:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-17 0:08 [PATCH nf-next 0/3] netfilter: socket lookup function refactoring, cgroup match fixes Daniel Mack
2015-06-17 0:08 ` [PATCH nf-next 1/3] netfilter: factor out helpers from xt_socket into separate modules Daniel Mack
2015-06-17 0:08 ` [PATCH nf-next 2/3] netfilter: x_tables: fix cgroup's NF_INET_LOCAL_IN sk lookups Daniel Mack
2015-06-17 0:08 ` [PATCH nf-next 3/3] netfilter: nft_meta: fix cgroup socket lookups Daniel Mack
2015-06-17 1:03 ` [PATCH nf-next 0/3] netfilter: socket lookup function refactoring, cgroup match fixes Pablo Neira Ayuso
2015-06-17 9:06 ` Daniel Mack
2015-06-17 10:34 ` Pablo Neira Ayuso [this message]
2015-06-17 11:28 ` Daniel Borkmann
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