Re: SELinux mixed/virtualisation policy

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On 04/11/2011 04:44 PM, chanson@xxxxxxxxxxxxx wrote:
>  
> 
>>> The types could be automatically generated from a template, and 
>>> managed by libvirt in much the same way it presently 
>> manages categories.
>>>
>>> In any event, he can do the same thing by use of categories rather 
>>> than introducing an incomparable set of sensitivities, and that 
>>> wouldn't require any changes to the policy toolchain or 
>> kernel security server.
>>>
>>
>> Well yes, but currently svirt can support out of the box 
>> ~500,000 svirt instances,  If we when with  a type system, 
>> this would probably some problems adding a couple of million 
>> types.  I don't think we want svirt recompiling and loading 
>> policy every time it launches a virtual machine.
>>  :^)
>>
>> Reserving a pool of categories at might be the way to go.  
>> But at what security level?  s15 or s0?  Also what about 
>> shared data between the virtual machines, read only content.  
>> Currently that is just labeled s0.
>>
> 
> I would suggest some level in between s0 and s15. I would agree with
> Stephen that dynamic types would be preferred. I guess it just depends
> on the reason you are using the MLS policy.
> 
> -Chad
> 
>  
Because you have virtual machines with data at different levels.

Of course you could have a multi-level virtual machine running with
multiple single level machines on the same multi-level virtual host.

Makes your head ache.
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