Re: [PATCH nf-next] netfilter: nf_tables: add ebpf expression

Florian Westphal
2022-08-31T15:54:09Z

Alexei Starovoitov <alexei.starovoitov@gmail.com> wrote:
> > 1 and 2 have the upside that its easy to handle a 'file not found'
> > error.
>
> I'm strongly against calling into bpf from the inner guts of nft.
> Nack to all options discussed in this thread.
> None of them make any sense.

-v please. I can just rework userspace to allow going via xt_bpf
but its brain damaged.

This helps gradually moving towards move epbf for those that
still heavily rely on the classic forwarding path.

If you are open to BPF_PROG_TYPE_NETFILTER I can go that route
as well, raw bpf program attachment via NF_HOOK and the bpf dispatcher,
but it will take significantly longer to get there.

It involves reviving
https://lore.kernel.org/netfilter-devel/20211014121046.29329-1-fw@strlen.de/

as a first stage/merge goal.