Re: [Xenomai-core] Group-based RT caps

[Jan Kiszka <jan.kiszka@domain.hid>]

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Johan Borkhuis wrote:
> Jan Kiszka wrote:
>> I couldn't resist, the approach looked too simple and appealing:
>> http://www.rts.uni-hannover.de/rtaddon/patches/xenomai/rt-caps-group.patch
>>
>>
>> Actually, it's even more advanced than realtime-lsm in so far as it also
>> checks for secondary group membership. You can use the nucleus module
>> parameter "xenomai_gid" to control the Xenomai group, also during
>> runtime using /sys.
>>
>> Works nicely for me. I'm able to run testsuite programs under my user
>> account that now additionally belongs to the "xenomai" group. :)
>>
>> Jan
>>   
> 
> I used the patch (and reversed my modification of MLOCK_LIMIT) and this
> works OK now, on a plain 2.3.1 version. Thanks!

Nice to hear.

> 
> One thing I would like to see is to have the xenomai_gid parameter as a
> kernel config parameter, next to the module parameter. The default can
> be -1, but I would like to have my configured xenomai-group as the
> default value, so I don't have to pass an extra parameter or modify
> /sys/module/xeno_nucleus/parameters/xenomai_gid.

Build the nucleus into the kernel, and you'll have it (with kernel 2.6
at least): "xeno_nucleus.xenomai_gid=<some-gid>"

Jan


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