Steve Grubb wrote:
Hi,
With the proposals sent to the list, I wanted to talk about how this might
play out code-wise. With regard to the current code base, I am working on a
1.8 release. This would represent finishing the remote logging app and
nothing more. The 1.8 series would become just an update series just like the
1.0.x series did.
In parallel with finishing remote logging, I would release a 2.0 version.
Patches applied to 1.8 would also be applied to 2.0. A 2.1 release would
signify the completion of remote logging that branch. I would recommend this
branch for all distributions pulling new code in.
The 2.0 branch will also have a couple more changes. I want to split up the
audit source code a little bit. I want to drop the system-config-audit code
and let it become standalone package updated and distributed separately.
I also want to drop all audispd-plugins in the 2.0 branch and have them
released separately. They cause unnecessary build dependencies for the audit
package.
During the work for a 2.2 release, I would also like to pull the audispd
program inside auditd. In the past, I tried to keep auditd lean and single
purpose, but with adding remote logging and kerberos support, we already have
something that is hard to analyze. So, to improve performance and decrease
system load, the audit daemon will also do event dispatching.
Would this proposal impact anyone in a Bad Way?
On the contrary. My austream tool was born because:
* Ensuring a dispatcher doesn't generate audit events is fragile
* The additional task switching and memory copying becomes onerous under
load
Additionally, auditd is clearly geared up for writing to disk: certainly
in RHEL 4, switching off all disk related activity is a whole lot of
typing to tell it not to do anything :)
Solaris's BSM implements custom behaviour with loadable modules. If our
auditd did that, hopefully I could deprecate austream. The dispatcher
architecture doesn't lend itself to sustained high volume.
Matt
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Matthew Booth, RHCA, RHCSS
Red Hat, Global Professional Services
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