From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steve Grubb <sgrubb@redhat.com>
Subject: Re: Seeking auditd help
Date: Mon, 11 May 2015 15:52:47 -0400
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Cc: Bill Jackson III <wajiii@gmail.com>
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On Monday, May 11, 2015 11:50:19 AM Bill Jackson III wrote:
> Any pointers for troubleshooting  auditd missing events for file reads,
> edits, etc. ( -w _path_ -p raw) on OEL5/RHEL 5/CentOS 5?
> 
> http://security.stackexchange.com/q/89009/56827

The -w notation is the same as

-a always,exit -F path=XXX -F perms=rwa

What this does is audit the following functions defined in the syscall 
classifiers
:
http://lxr.free-electrons.com/source/include/asm-generic/audit_read.h
http://lxr.free-electrons.com/source/include/asm-generic/audit_write.h
http://lxr.free-electrons.com/source/include/asm-generic/audit_change_attr.h

You are not going to get a hit for each and every read system call because 
read is not audited.

-Steve