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Date:   Tue, 28 Apr 2020 01:44:06 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Lukas Wunner <lukas@...ner.de>
Cc:     Laura Garcia <nevola@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jozsef Kadlecsik <kadlec@...filter.org>,
        Florian Westphal <fw@...len.de>,
        Netfilter Development Mailing list 
        <netfilter-devel@...r.kernel.org>, coreteam@...filter.org,
        netdev@...r.kernel.org, Martin Mares <mj@....cz>,
        Dmitry Safonov <0x7f454c46@...il.com>,
        Thomas Graf <tgraf@...g.ch>,
        Alexei Starovoitov <ast@...nel.org>,
        David Miller <davem@...emloft.net>
Subject: Re: [PATCH nf-next 3/3] netfilter: Introduce egress hook

Hi Lukas,

On Thu, Apr 23, 2020 at 06:05:42PM +0200, Lukas Wunner wrote:
[...]
> Daniel submitted a revert of this series but didn't cc me:
> 
> https://lore.kernel.org/netdev/bbdee6355234e730ef686f9321bd072bcf4bb232.1584523237.git.daniel@iogearbox.net/
> 
> In the ensuing discussion it turned out that the performance argument
> may be addressed by a rearrangement of sch_handle_egress() and
> nf_egress() invocations.  I could look into amending the series
> accordingly and resubmitting, though I'm currently swamped with
> other work.
> 
> The question is whether that's going to be sufficient because Daniel
> mentioned having an in-tree user as a prerequisite for accepting this
> feature, to which Pablo responded with NAT64/NAT46.  I don't have
> intentions of implementing those, but maybe someone else has.

I'd love to work on integrating that feature, there are a few
implementations outthere that might be useful for this.

However, I'm terribly biased, I'm the Netfilter maintainer.

Even though, I really think this hook is going to be very useful for
the Linux community from day one.

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