netdev - Re: [PATCH] bpf: Use tracing helpers for lsm programs

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Date:   Tue, 2 Jun 2020 11:06:32 +0200
From:   KP Singh <kpsingh@...omium.org>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Song Liu <song@...nel.org>, Jiri Olsa <jolsa@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        KP Singh <kpsingh@...gle.com>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        Yonghong Song <yhs@...com>, Martin KaFai Lau <kafai@...com>,
        Jakub Kicinski <kuba@...nel.org>,
        David Miller <davem@...hat.com>,
        John Fastabend <john.fastabend@...il.com>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Andrii Nakryiko <andriin@...com>
Subject: Re: [PATCH] bpf: Use tracing helpers for lsm programs

On Tue, Jun 2, 2020 at 10:13 AM Jiri Olsa <jolsa@...hat.com> wrote:
>
> On Mon, Jun 01, 2020 at 03:12:13PM -0700, Alexei Starovoitov wrote:
> > On Mon, Jun 1, 2020 at 12:00 PM Song Liu <song@...nel.org> wrote:
> > >
> > > On Sun, May 31, 2020 at 8:45 AM Jiri Olsa <jolsa@...nel.org> wrote:
> > > >
> > > > Currenty lsm uses bpf_tracing_func_proto helpers which do
> > > > not include stack trace or perf event output. It's useful
> > > > to have those for bpftrace lsm support [1].
> > > >
> > > > Using tracing_prog_func_proto helpers for lsm programs.
> > >
> > > How about using raw_tp_prog_func_proto?
> >
> > why?
> > I think skb/xdp_output is useful for lsm progs too.
> > So I've applied the patch.
>
> right, it's also where d_path will be as well
>
> >
> > > PS: Please tag the patch with subject prefix "PATCH bpf" for
> > > "PATCH bpf-next". I think this one belongs to bpf-next, which means
> > > we should wait after the merge window.
>
> I must have missed info about that,
> thanks for info

Thanks for adding this! LGTM as well.

- KP

>
> >
> > +1.
> > Jiri,
> > pls tag the subject properly.
>
> will do, sry
>
> thanks,
> jirka
>