[patch 1/1] SELinux AVC audit log ipaddr field support (for task_struct->curr_ip)

Stephen Smalley sds at tycho.nsa.gov
Thu Mar 10 15:16:49 UTC 2005


On Thu, 2005-03-10 at 16:05 +0100, Lorenzo Hernández García-Hierro
wrote:
> Provides support for a new field ipaddr within the SELinux
> AVC audit log, relying in task_struct->curr_ip (ipv4 only)
> provided by the task-curr_ip or grSecurity patch to be applied
> before.It was first implemented by Joshua Brindle (a.k.a Method)
> from the Hardened Gentoo project.
> 
> An example of the audit messages with ipaddr field:
> audit(1110432234.161:0): avc:  denied  { search } for  pid=19057
> exe=/usr/bin/wget name=portage dev=hda3 ino=1024647 ipaddr=192.168.1.30
> scontext=root:sysadm_r:portage_fetch_t tcontext=system_u:object_r:portage_tmp_t tclass=dir

Even if the basic idea were sound (doubtful), this would need to be
generalized (i.e. not ipv4-specific).  Also, I think I'd rather see
extensions to the audit data be incorporated into the audit framework,
not the AVC-specific audit code, and some of the existing avc_audit()
code migrated into the audit framework (e.g. the exe= information
currently generated by avc_audit could be done by audit_log_exit
instead).

-- 
Stephen Smalley <sds at tycho.nsa.gov>
National Security Agency




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