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Re: filter specific file from specific program



On Tuesday, November 29, 2011 03:38:43 PM Lance Dillon wrote:
> I have a need to filter a file from auditing, but only from a specific
> process. We are running splunk, and indexing /var/log/audit/audit.log.  We
> want audit.log to be monitored, so we are using a dir watch on
> /var/log/audit, but we just don't want splunk access to be reported. 
> Filtering on obj_type doesn't work (-F obj_type=auditd_log_t), because it
> filters everything, not that specific process. 

The object is the file. The subject would be the program accessing the file. You could 
use subj_type.

> However, it actually spawns another process to do the actual access, so I can't
> filter on pid either.  It runs unconfined, 

Which is a big problem because you really don't want it to be unconfined.

> so I can't filter on subj_type=unconfined_t, because that would filter way too much.
>
> It was suggested to me to use audit roles.  If this is something separate
> from selinux context, perhaps someone can point me in the right direction?
> I only want to filter out (not audit) access to audit.log from the
> specific process /opt/splunkforwarder/bin/splunkd (and any forks it may
> do).

I think you might could make the helper app setgid and then filter that out.

-a never,exit -F gid=xxx

-Steve


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