audit log for "setenforce" changes?

[Eric Paris]

On Fri, 2008-01-11 at 17:10 -0500, Chuck Anderson wrote:
> On Fri, Jan 11, 2008 at 04:16:21PM -0500, Stephen Smalley wrote:
> > 
> > On Fri, 2008-01-11 at 16:06 -0500, Chuck Anderson wrote:
> > > Is there any way to tell from the audit log or elsewhere when 
> > > someone/something changed SELinux from enforcing to permissive or vice 
> > > versa?
> > 
> > Look for MAC_STATUS records in the audit log, e.g.
> > 	/sbin/ausearch -m MAC_STATUS
> > 
> > These include changes to enforcing mode, with the enforcing= and
> > old_enforcing= values.
> 
> This doesn't work apparently:
> 
> #cat /etc/fedora-release 
> Fedora release 8 (Werewolf)
> 
> #ausearch -m MAC_STATUS
> <no matches>
> #sestatus
> SELinux status:                 enabled
> SELinuxfs mount:                /selinux
> Current mode:                   permissive
> Mode from config file:          enforcing
> Policy version:                 21
> Policy from config file:        targeted
> #setenforce 1
> #sestatus
> SELinux status:                 enabled
> SELinuxfs mount:                /selinux
> Current mode:                   enforcing
> Mode from config file:          enforcing
> Policy version:                 21
> Policy from config file:        targeted
> [root at gkar 17:09:19 /var/log/audit]#ausearch -m MAC_STATUS
> <no matches>
> #setenforce 0
> #sestatus
> SELinux status:                 enabled
> SELinuxfs mount:                /selinux
> Current mode:                   permissive
> Mode from config file:          enforcing
> Policy version:                 21
> Policy from config file:        targeted
> #ausearch -m MAC_STATUS
> <no matches>

Do you have auditd running?  If not look in dmesg or /var/log/messages
instead of ausearch because it seems to be working fine for me....

[root at localhost ~]# cat /etc/fedora-release
Fedora release 8 (Werewolf)
[root at localhost ~]# setenforce 1
[root at localhost ~]# ausearch -m MAC_STATUS
----
time->Sat Jan 12 08:33:04 2008
type=SYSCALL msg=audit(1200144784.891:24): arch=40000003 syscall=4
success=yes exit=1 a0=3 a1=bf83f1e4 a2=1 a3=bf83f1e4 items=0 ppid=3155
pid=3394 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0
fsgid=0 tty=pts1 comm="setenforce" exe="/usr/sbin/setenforce"
subj=unconfined_u:system_r:unconfined_t:s0-s0:c0.c1023 key=(null)
type=MAC_STATUS msg=audit(1200144784.891:24): enforcing=0
old_enforcing=1 auid=500
----
time->Sat Jan 12 08:33:39 2008
type=SYSCALL msg=audit(1200144819.882:26): arch=40000003 syscall=4
success=yes exit=1 a0=3 a1=bfb534f4 a2=1 a3=bfb534f4 items=0 ppid=3155
pid=3399 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0
fsgid=0 tty=pts1 comm="setenforce" exe="/usr/sbin/setenforce"
subj=unconfined_u:system_r:unconfined_t:s0-s0:c0.c1023 key=(null)
type=MAC_STATUS msg=audit(1200144819.882:26): enforcing=1
old_enforcing=0 auid=500
[root at localhost ~]#