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Date:   Fri, 24 Mar 2023 19:36:39 +0100
From:   Florian Westphal <fw@strlen.de>
To:     Daniel Xu <dxu@dxuuu.xyz>
Cc:     Florian Westphal <fw@strlen.de>, bpf@vger.kernel.org,
        netfilter-devel@vger.kernel.org
Subject: Re: [PATCH RFC v2 bpf-next 0/3] bpf: add netfilter program type
Message-ID: <20230324183639.GD1871@breakpoint.cc>
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Daniel Xu <dxu@dxuuu.xyz> wrote:
> On Thu, Mar 02, 2023 at 06:27:54PM +0100, Florian Westphal wrote:
> > Add minimal support to hook bpf programs to netfilter hooks,
> > e.g. PREROUTING or FORWARD.
> > 
> > For this the most relevant parts for registering a netfilter
> > hook via the in-kernel api are exposed to userspace via bpf_link.
> > 
> > The new program type is 'tracing style' and assumes skb dynptrs are used
> > rather than 'direct packet access'.
> 
> [...]
> 
> Hope all is well. Do you have any updates on this series? I'm keen to
> start building on top of this work.

Sorry, I was busy with other work so this got sidelined.

I've pushed what I hav atm to
https://git.breakpoint.cc/cgit/fw/bpf-next.git/log/?h=nf_bpf_hooks_07

I had no time so far to do the testing needed for a new official
submission (e.g. bpf_link_info).

Compared to last uapi this now has a "flags" member that could be
used to indicate "need defrag" and so on.

I hope I can submit this again early April.