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From: Jiri Olsa <jolsa@redhat.com>
To: Paul Moore <paul@paul-moore.com>
Cc: Jiri Olsa <jolsa@kernel.org>, Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	netdev@vger.kernel.org, bpf@vger.kernel.org,
	linux-audit@redhat.com, Andrii Nakryiko <andriin@fb.com>,
	Yonghong Song <yhs@fb.com>, Martin KaFai Lau <kafai@fb.com>,
	Jakub Kicinski <jakub.kicinski@netronome.com>,
	Steve Grubb <sgrubb@redhat.com>, David Miller <davem@redhat.com>,
	Eric Paris <eparis@redhat.com>, Jiri Benc <jbenc@redhat.com>
Subject: Re: [RFC] bpf: Emit audit messages upon successful prog load and unload
Date: Wed, 4 Dec 2019 16:26:49 +0100
Message-ID: <20191204152649.GB15573@krava> (raw)
In-Reply-To: <CAHC9VhTrUQYp8Ubhu_B_fv-HSdwmgYRy+r1p9uKz7WcRfDQBKA@mail.gmail.com>

On Wed, Dec 04, 2019 at 09:38:10AM -0500, Paul Moore wrote:

SNIP

> > +
> > +static const char * const bpf_audit_str[] = {
> > +       [BPF_AUDIT_LOAD]   = "LOAD",
> > +       [BPF_AUDIT_UNLOAD] = "UNLOAD",
> > +};
> > +
> > +static void bpf_audit_prog(const struct bpf_prog *prog, enum bpf_audit op)
> > +{
> > +       struct audit_context *ctx = NULL;
> > +       struct audit_buffer *ab;
> > +
> > +       if (audit_enabled == AUDIT_OFF)
> > +               return;
> > +       if (op == BPF_AUDIT_LOAD)
> > +               ctx = audit_context();
> > +       ab = audit_log_start(ctx, GFP_ATOMIC, AUDIT_BPF);
> > +       if (unlikely(!ab))
> > +               return;
> > +       audit_log_format(ab, "prog-id=%u op=%s",
> > +                        prog->aux->id, bpf_audit_str[op]);
> > +       audit_log_end(ab);
> > +}
> 
> As mentioned previously, I still think it might be a good idea to
> ensure "op" is within the bounds of bpf_audit_str, but the audit bits
> look reasonable to me.

ok, I'll add that, I'll send out full patch

thanks for the review,
jirka


  reply index

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-28  9:16 Jiri Olsa
2019-11-28  9:18 ` Jiri Olsa
2019-12-02 23:00 ` Paul Moore
2019-12-03  4:57   ` Steve Grubb
2019-12-03  8:46     ` Jiri Olsa
2019-12-03  9:38   ` Jiri Olsa
2019-12-04  2:53     ` Paul Moore
2019-12-04 14:08       ` Jiri Olsa
2019-12-04 14:38         ` Paul Moore
2019-12-04 15:26           ` Jiri Olsa [this message]
2019-12-04 14:02   ` Jiri Olsa
  -- strict thread matches above, loose matches on Subject: below --
2019-11-20 14:38 [RFC] bpf: emit " Jiri Olsa
2019-11-20 21:14 ` Alexei Starovoitov
2019-11-20 21:30   ` Jiri Olsa

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