linux-kernel - Re: [PATCH] selinux: add tracepoint on denials

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Message-ID: <CA+zpnLc1i32LZGXU8q3=Ssd7Nhpzis0PFXjs8e+weav6rMpWbQ@mail.gmail.com>
Date:   Tue, 28 Jul 2020 15:23:15 +0200
From:   Thiébaud Weksteen <tweek@...gle.com>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Paul Moore <paul@...l-moore.com>,
        Stephen Smalley <stephen.smalley.work@...il.com>,
        Nick Kralevich <nnk@...gle.com>,
        Joel Fernandes <joelaf@...gle.com>,
        Eric Paris <eparis@...isplace.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        SElinux list <selinux@...r.kernel.org>
Subject: Re: [PATCH] selinux: add tracepoint on denials

On Tue, Jul 28, 2020 at 3:12 PM Steven Rostedt <rostedt@...dmis.org> wrote:
> Where in that document does it say that trace events have a fixed size.
> We have a lot of dynamically sized trace events.

My mistake. From the "format" pseudo-file, I assumed the offset and
size were fixed.

> Please take a look at samples/trace_events/trace_events_sample.h
> and read the example on __print_symbolic().
> I think that's what you are looking for.

Ack, thanks for pointing these out. I still think that my other
argument (i.e. duplication of avc message) holds.