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From: Florent Revest <revest@chromium.org>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: bpf <bpf@vger.kernel.org>, Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	KP Singh <kpsingh@chromium.org>,
	open list <linux-kernel@vger.kernel.org>,
	KP Singh <kpsingh@kernel.org>
Subject: Re: [PATCH bpf-next v6 2/5] bpf: Expose bpf_get_socket_cookie to tracing programs
Date: Sat, 30 Jan 2021 12:35:21 +0100	[thread overview]
Message-ID: <CABRcYmK1kAFAu=8CCVv+zYLFui5B_+jOJj6NpE0jW3Ers7Y6ZQ@mail.gmail.com> (raw)
In-Reply-To: <CAEf4BzZ9MmdeR9P7bybXEM77MV6C-T=yZPugLOHSFC1ES2e4=g@mail.gmail.com>

On Wed, Jan 27, 2021 at 10:01 PM Andrii Nakryiko
<andrii.nakryiko@gmail.com> wrote:
>
> On Tue, Jan 26, 2021 at 10:36 AM Florent Revest <revest@chromium.org> wrote:
> >
> > This needs a new helper that:
> > - can work in a sleepable context (using sock_gen_cookie)
> > - takes a struct sock pointer and checks that it's not NULL
> >
> > Signed-off-by: Florent Revest <revest@chromium.org>
> > Acked-by: KP Singh <kpsingh@kernel.org>
> > ---
> >  include/linux/bpf.h            |  1 +
> >  include/uapi/linux/bpf.h       |  8 ++++++++
> >  kernel/trace/bpf_trace.c       |  2 ++
> >  net/core/filter.c              | 12 ++++++++++++
> >  tools/include/uapi/linux/bpf.h |  8 ++++++++
> >  5 files changed, 31 insertions(+)
> >
> > diff --git a/include/linux/bpf.h b/include/linux/bpf.h
> > index 1aac2af12fed..26219465e1f7 100644
> > --- a/include/linux/bpf.h
> > +++ b/include/linux/bpf.h
> > @@ -1874,6 +1874,7 @@ extern const struct bpf_func_proto bpf_per_cpu_ptr_proto;
> >  extern const struct bpf_func_proto bpf_this_cpu_ptr_proto;
> >  extern const struct bpf_func_proto bpf_ktime_get_coarse_ns_proto;
> >  extern const struct bpf_func_proto bpf_sock_from_file_proto;
> > +extern const struct bpf_func_proto bpf_get_socket_ptr_cookie_proto;
> >
> >  const struct bpf_func_proto *bpf_tracing_func_proto(
> >         enum bpf_func_id func_id, const struct bpf_prog *prog);
> > diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
> > index 0b735c2729b2..5855c398d685 100644
> > --- a/include/uapi/linux/bpf.h
> > +++ b/include/uapi/linux/bpf.h
> > @@ -1673,6 +1673,14 @@ union bpf_attr {
> >   *     Return
> >   *             A 8-byte long unique number.
> >   *
> > + * u64 bpf_get_socket_cookie(void *sk)
>
> should the type be `struct sock *` then?

Oh, absolutely. :) Thank you Andrii

  reply	other threads:[~2021-01-30 11:36 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-26 18:35 [PATCH bpf-next v6 1/5] bpf: Be less specific about socket cookies guarantees Florent Revest
2021-01-26 18:35 ` [PATCH bpf-next v6 2/5] bpf: Expose bpf_get_socket_cookie to tracing programs Florent Revest
2021-01-27 21:01   ` Andrii Nakryiko
2021-01-30 11:35     ` Florent Revest [this message]
     [not found]     ` <4a8ceab1-6eef-9fda-0502-5a0550f53ddc@iogearbox.net>
     [not found]       ` <37730136-2c33-589c-a749-4221b60b9751@iogearbox.net>
2021-01-30 11:45         ` Florent Revest
2021-02-01 22:32           ` Daniel Borkmann
2021-02-01 22:37             ` Alexei Starovoitov
2021-02-10 11:10               ` Florent Revest
2021-01-26 18:35 ` [PATCH bpf-next v6 3/5] selftests/bpf: Integrate the socket_cookie test to test_progs Florent Revest
2021-01-27 20:58   ` Andrii Nakryiko
2021-01-26 18:35 ` [PATCH bpf-next v6 4/5] selftests/bpf: Use vmlinux.h in socket_cookie_prog.c Florent Revest
2021-01-27 20:57   ` Andrii Nakryiko
2021-01-26 18:35 ` [PATCH bpf-next v6 5/5] selftests/bpf: Add a selftest for the tracing bpf_get_socket_cookie Florent Revest

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