Re: Backups with rsync totally broken in Fedora 18

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On 01/18/2013 09:29 PM, David Highley wrote:
> "David Highley wrote:"
>> 
>> "Daniel J Walsh wrote:"
>>> 
> On 01/18/2013 09:20 AM, David Highley wrote:
>>>>> Upgraded a test box to Fedora 18 and have tried to get rsync
>>>>> backups to it working. Looked at many discussions about backing up
>>>>> in a selinux environment and all discussions seemed to be
>>>>> incomplete.
>>>>> 
>>>>> Most indicate you should not keep selinux labels, but none of those
>>>>>  discussion indicate what options to change. After working on a
>>>>> thousand line policy file I'm beginning to think you just want to
>>>>> completely turn off any audit of the rsync domain.
>>>>> 
>>>>> Is this how we should approach backups? If you do not preserve
>>>>> selinux labels what should the backup location get labeled to?
>>>>> 
>>>>> I'm surprised as long as selinux has been in use that a template
>>>>> with details has not been defined for this. By the way I had just
>>>>> submitted an enhancement bug report for rsync with examples of
>>>>> getting it to function with systemd control. -- selinux mailing
>>>>> list selinux@xxxxxxxxxxxxxxxxxxxxxxx 
>>>>> https://admin.fedoraproject.org/mailman/listinfo/selinux
>>>>> 
> Does this help?
> 
> http://danwalsh.livejournal.com/61646.html
>>> 
>>> I had found and read this information, but was not sure from it and the
>>> other discussions that it was the right direction and if the right 
>>> direction that it had complete information for doing the
>>> implementation.
>>> 
>>> Has anyone tried this and has it worked out? Do you define the backup 
>>> area as unconfined_u and relabel everything to that?
>>> 
> 
>> OK, making rsync_t and unconfined domain gets rid of the AVCs. I still 
>> have concerns that it is just opening up a bad whole in the system. Is 
>> there a way of scoping it to only the back up area and or maybe forcing 
>> what ever is copied to a benign state by labeling it to something safe?
> 
>>> 
>> -- selinux mailing list selinux@xxxxxxxxxxxxxxxxxxxxxxx 
>> https://admin.fedoraproject.org/mailman/listinfo/selinux
>> 
> -- selinux mailing list selinux@xxxxxxxxxxxxxxxxxxxxxxx 
> https://admin.fedoraproject.org/mailman/listinfo/selinux
> 

Well rsync_t policy if for running rsync as a daemon not as a client.

/usr/lib/systemd/system/rsyncd.service

I just checked a fix into the policy so that only rsynd when run as a service
will transition to rsync_t.  But if you run it from a script or an application
running as initrc_t, it will stay as the current domain.

If you are only running rsync as a client, adding unconfined_domain(rsync_t)
will not give it more privs that initrc_t already has.
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