Re: a boolean which does not work?

Lukas Vrabec <[email protected]> Mon, 10 Jun 2019 17:40:49 +0200
Newsgroups	gmane.linux.redhat.fedora.selinux
Organization	Red Hat, Inc.
Message-ID	<[email protected]>
On 6/10/19 11:04 AM, Ondrej Mosnacek wrote:
> On Thu, Jun 6, 2019 at 11:54 AM lejeczek <[email protected]> wrote:
>> On 06/06/2019 09:43, Ondrej Mosnacek wrote:
>>> On Thu, Jun 6, 2019 at 10:30 AM lejeczek <[email protected]> wrote:
>>>> hi everyone
>>>>
>>>> I have this:
>>>>
>>>> virt_use_fusefs --> on
>>>> virt_use_glusterd --> on
>>>>
>>>> on centos 7.6 with selinux-policy-3.13.1-229.el7_6.12.noarch.
>>>>
>>>> When I tell pacemaker to start a virt guest resource with xml config off
>>>> a fuse mounted gluster vol I get a denial and audit2allow sees:
>>>>
>>>> allow virsh_t fusefs_t:dir search;
>>>>
>>>> Should above boolean be all I (pacemaker) need or I'm missing something?
>>> Hm, there seems to be an inconsistency among the virt_use_*fs
>>> booleans. On current Fedora Rawhide:
>>>
>>> $ sesearch -A -b virt_use_fusefs | cut -f 2 -d ' ' | uniq
>>> virt_domain
>>> $ sesearch -A -b virt_use_nfs | cut -f 2 -d ' ' | uniq
>>> fsdaemon_t
>>> svirt_sandbox_domain
>>> virsh_t
>>> virt_domain
>>> virtlogd_t
>>>
>>> So, the "virt" in virt_use_nfs has a much wider meaning than the
>>> "virt" in virt_use_fusefs... @Zdenek/Lukas, should we consolidate
>>> this?
>>>
>> Not on Centos, nope - virt_use_nfs - does not help neither, although it
>> seems to cover broadly, I still get:
> 
> No, enabling virt_use_nfs won't help you (it allows virt domains to
> use NFS, not fusefs). I just pointed out that it covers more source
> domains than virt_use_fusefs. I believe this is an oversight and the
> virt_use_fusefs boolean should be fixed to cover the same set of
> source domains as virt_use_nfs. Anyway, you should open a bug against
> selinux-policy on RHEL/Fedora, so this is tracked and hopefully fixed
> (please include a link to this conversation if you do so).
> 

Agree with Ondrej here, this should be consolidated.

Could you please create bugzilla ticket?

Thanks,
Lukas.


>>
>> $ semodule -DB
>>
>> $ ausearch -ts 10:51 | audit2allow
>>
>>
>> #============= automount_t ==============
>> allow automount_t mount_t:process { noatsecure rlimitinh siginh };
>>
>> #============= glusterd_t ==============
>> allow glusterd_t automount_t:fifo_file write;
>>
>> #============= virsh_t ==============
>> allow virsh_t fusefs_t:dir search;
>>
>> $ sesearch -A -b virt_use_nfs | cut -f 5 -d ' ' | uniq
>> rules:
>> virsh_t
>> virt_domain
>> svirt_sandbox_domain
>> virtd_t
>> virsh_t
>> fsdaemon_t
>> virt_domain
>> virtlogd_t
>> virt_domain
>> virsh_t
>> fsdaemon_t
>> virtd_t
>> virt_domain
>> svirt_sandbox_domain
>> virtd_t
>> fsdaemon_t
>> virtlogd_t
>> virtd_t
>> svirt_sandbox_domain
>> fsdaemon_t
>> svirt_sandbox_domain
>> virsh_t
>> virt_domain
>>
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> 
> 
> 


-- 
Lukas Vrabec
Senior Software Engineer, Security Technologies
Red Hat, Inc.

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