Re: [Agnula-Developers] [ demudi-Feature Requests-723 ] Compile Muse 0.6.3 with givertcap support
On Fri, 27 Feb 2004, Free Ekanayaka wrote:
> >>>>> "ln" == noreply <noreply@devel.agnula.org> writes:
>
> ln> Feature Requests item #723, was opened at 27/02/2004 18:18 You
> ln> can respond by visiting:
> ln> http://devel.agnula.org/tracker/?func=detail&atid=120&aid=723&group_id=8
>
> ln> Category: None Group: None Status: Open Resolution: None
> ln> Priority: 5 Submitted By: Linium (linium) Assigned to: Nobody
> ln> (None) Summary: Compile Muse 0.6.3 with givertcap support
>
> ln> Initial Comment: Once a givertcap package is provided in
> ln> Agnula, please compile Muse 0.6.3 with --enable-rtcap
>
>
>
> ln> ----------------------------------------------------------------------
>
> ln> You can respond by visiting:
> ln> http://devel.agnula.org/tracker/?func=detail&atid=120&aid=723&group_id=8
> ln> _______________________________________________ Developers
> ln> mailing list Developers@lists.agnula.org
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>
> At the moment the muse package can be configured to be run setuid, so
> that it can get real time capabilities. I think this equivalent to the
> --enable-rtcap flag.
>
> Said this, AFAIK givertcap [0] is not packaged nor in DeMuDi or in
> Debian, but it could be very useful, for example to give to all the
> users in the "audio" group the right of running real time
> applications, instead of asking the same question for each package
> which needs to be setuid to get realtime capabilities.
The problem with this approach is that you would have to patch every
package that doesn't support givertcap. Then givertcap is pretty insecure
as soon as it gets installed in the system.
The author of givertcap states that it is bound to be replaced by a better
system, so the question is if all of this is worth the effort.
For 2.6 there is another possibility, the realtime kernel module by
Jack O'Quin (who is on the debian-multimedia list too and has provided
us already with important insights into the working of JACK).
Using this module the applications do not have to be changed.
They can just use their "normal" priority settings mechanism.
Its downloadable at:
http://www.joq.us/realtime/
Guenter
>
> I don't know whether whether such a package would be a security issue
> for Debian,
>
> bye,
>
> free
>
>
> [0] http://www.tml.hut.fi/~tilmonen/givertcap/
>
>
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