Re: typebounds lookup from userspace

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KaiGai Kohei wrote:
> Joshua Brindle wrote:
>   
>> For symbol labeling purposes for policy access control we need to be able
>>     
>  > to look up symbol hierarchy relationships. I expect we'll do this by exporting
>  > the symbol hierarchy via selinuxfs. Does anyone have suggestions on what that
>  > should look like? Do we want to export additional information on the symbols
>  > at the same time?
>
> I noticed that userspace object manager also need an interface to get metadata
> of types to support permissive domain. Currently, we don't have any interface
> to know what domain should be handled as permissive domain.
>
> If "/selinux/access" can return the 6th value to show whether the given query
> should be handled as permissive domain or not, it helps userspace object managers.
>   

Why does a userspace object manager need to know if a domain is marked
permissive?  That should be hidden behind security_compute_av().


> It is undesirable for me to add a new interface to query whether the given domain
> is permissive or not, because it cannot avoid atomicity matter.
>
> Thanks,
>   


-- 
Eamon Walsh <ewalsh@xxxxxxxxxxxxx>
National Security Agency


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