netdev - Re: [PATCH bpf-next] selftests/bpf: fix ct status check in bpf

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Date:   Thu, 8 Sep 2022 09:45:57 +0200
From:   Lorenzo Bianconi <lorenzo@...nel.org>
To:     Song Liu <song@...nel.org>
Cc:     bpf <bpf@...r.kernel.org>, Networking <netdev@...r.kernel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>, pablo@...filter.org,
        fw@...len.de, netfilter-devel@...r.kernel.org,
        lorenzo.bianconi@...hat.com,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Toke Høiland-Jørgensen <toke@...hat.com>,
        Kumar Kartikeya Dwivedi <memxor@...il.com>
Subject: Re: [PATCH bpf-next] selftests/bpf: fix ct status check in bpf_nf
 selftests

> On Wed, Sep 7, 2022 at 3:56 AM Lorenzo Bianconi <lorenzo@...nel.org> wrote:
> >
> > Check properly the connection tracking entry status configured running
> > bpf_ct_change_status kfunc.
> > Remove unnecessary IPS_CONFIRMED status configuration since it is
> > already done during entry allocation.
> >
> > Fixes: 6eb7fba007a7 ("selftests/bpf: Add tests for new nf_conntrack kfuncs")
> > Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
> > ---
> >  tools/testing/selftests/bpf/prog_tests/bpf_nf.c | 4 ++--
> >  tools/testing/selftests/bpf/progs/test_bpf_nf.c | 8 +++++---
> >  2 files changed, 7 insertions(+), 5 deletions(-)
> >
> > diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_nf.c b/tools/testing/selftests/bpf/prog_tests/bpf_nf.c
> > index 544bf90ac2a7..903d16e3abed 100644
> > --- a/tools/testing/selftests/bpf/prog_tests/bpf_nf.c
> > +++ b/tools/testing/selftests/bpf/prog_tests/bpf_nf.c
> > @@ -111,8 +111,8 @@ static void test_bpf_nf_ct(int mode)
> >         /* allow some tolerance for test_delta_timeout value to avoid races. */
> >         ASSERT_GT(skel->bss->test_delta_timeout, 8, "Test for min ct timeout update");
> >         ASSERT_LE(skel->bss->test_delta_timeout, 10, "Test for max ct timeout update");
> > -       /* expected status is IPS_SEEN_REPLY */
> > -       ASSERT_EQ(skel->bss->test_status, 2, "Test for ct status update ");
> > +       /* expected status is IPS_CONFIRMED | IPS_SEEN_REPLY */
> > +       ASSERT_EQ(skel->bss->test_status, 0xa, "Test for ct status update ");
> 
> Why do we use 0xa instead of IPS_CONFIRMED | IPS_SEEN_REPLY?
> To avoid dependency on the header file?

nope, thx for reporting it. I will fix it in v2.

Regards,
Lorenzo

> 
> Thanks,
> Song

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