targeted policy relabels *everything*?

[m.roth at 5-cent.us]

Tristan Santore wrote:
> On 26/11/14 18:53, m.roth at 5-cent.us wrote:
>> Tristan Santore wrote:
>>> On 26/11/14 18:44, m.roth at 5-cent.us wrote:
>>>> The admin I work with and I have been updated our CentOS servers to
>>>> 6.6. One server that's been running for years, with no issues (it is in
>>>> permissive, also), got updated...
>>>>
>>>>  Nov 25 17:26:56 Updated: kexec-tools-2.0.0-280.el6.x86_64
>>>> <many, many, many lines of asterisks elided>
>>>>  Nov 26 01:10:52 Updated:
>>>> selinux-policy-targeted-3.7.19-260.el6.noarch
>>>>  Nov 26 01:10:56 Updated: coolkey-1.1.0-32.el6.x86_64
>>>>
>>>> Yes, that *is* about 7.5 *hours* to install that policy. I can only
>>>> guess that for some reason, it decided to relabel the *ENTIRE* system.
>>>>
>>>> Anyone have any idea *why*?
>>> Any large SANs mounted ? Or other large data volumes ? Then it could
>>> take AGES!
>>>
>> Nope. A RAID 1 w/ 914G, 37% used. Don't tell me it tried to do any
>> NFS-mounted stuff, that I can't believe.
>>
> <snip RPM SPEC FILE>
> %post targeted
> packages=`cat /usr/share/selinux/targeted/modules.lst`
> if [ $1 -eq 1 ]; then
>    %loadpolicy targeted $packages
>    restorecon -R /root /var/log /var/run 2> /dev/null
> else
>    semodule -n -s targeted -r moilscanner -r mailscanner -r gamin -r
> audio_entropy -r iscsid -r polkit_auth -r polkit -r rtkit_daemon -r
> ModemManager -r telepathysofiasip -r passanger -r rgmanager -r aisexec
> -r corosync -r pacemaker -r amavis -r clamav -r glusterfs 2>/dev/null
>    %loadpolicy targeted $packages
>    %relabel targeted
> fi
> exit 0
> <snip RPM SPEC FILE>
>
> Well, I am not sure and Miroslav and Dan will have to tell you exactly
> what goes on, but it does look like it tries to force a full relabel. I
> got this from the spec file, but I have never built the selinux-policy
> myself, so not sure which %post section actually is applied, but suspect
> as that is the targeted package option, it depends on the policy being
> built and packaged. I cannot seem to find the %relabel macro in the docs
> anywhere though, probably looking the wrong place.
>
This is a DHCP server, and a number of other things, but....

> Dan and Miroslav can probably also clarify if the relabel applies to
> remotely mounted storage or if there is an exception there.
>
> I hope this helps.

Thanks.

        mark