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

Alexei Starovoitov
2022-09-07T03:04:36Z

On Mon, Sep 5, 2022 at 11:57 PM Nicolas Dichtel
<nicolas.dichtel@6wind.com> wrote:
>
>
> Le 31/08/2022 à 23:57, Florian Westphal a écrit :
> > Alexei Starovoitov <alexei.starovoitov@gmail.com> wrote:
> >>> This helps gradually moving towards move epbf for those that
> >>> still heavily rely on the classic forwarding path.
> >>
> >> No one is using it.
> >> If it was, we would have seen at least one bug report over
> >> all these years. We've seen none.
> >
> > Err, it IS used, else I would not have sent this patch.
> >
> >> very reasonable early on and turned out to be useless with
> >> zero users.
> >> BPF_PROG_TYPE_SCHED_ACT and BPF_PROG_TYPE_LWT*
> >> are in this category.
> >
> > I doubt it had 0 users. Those users probably moved to something
> > better?
> We are using BPF_PROG_TYPE_SCHED_ACT to perform custom encapsulations.
> What could we used to replace that?

SCHED_CLS. It has all of the features of cls and act combined.