Re: string_to_av_perm behavior

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On 05/22/2015 12:20 PM, Stephen Smalley wrote:
> On 05/22/2015 12:12 PM, Ted Toth wrote:
>> ./avperm
>> 1 - av_perm 0
>> security class: 66
>> class db_tuple av select
>> 2 - av_perm 8
>> 3 - av_perm 8
>>
>> why does the first call to string_to_av_perm return 0 something seem wrong here.
> 
> You need to call string_to_security_class() first.
> 
> The hardcoded #defines in flask.h and av_permissions.h are deprecated;
> you'll get compiler warnings with a recent version of libselinux when
> including them.

BTW, the preferred interface for SELinux userspace permission checks
these days is selinux_check_access().  Then you don't ever need to deal
with class or permission values or directly use any of the avc interfaces.


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