Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread torbenh
On Sat, Dec 06, 2003 at 06:35:45PM -0600, Jack O'Quin wrote: I've been experimenting with Torben's LSM for the 2.6 kernel, and the realtime group permissions mechanism we discussed. Naturally, there are some problems. The worst is that GTK-2 will not tolerate the use of setgid... uhh...

[linux-audio-dev] deconvolver for IR creation anyone?

2003-12-08 Thread Uwe Koloska
Hello, I am looking for a deconvolver, that is able to produce impulse responses from sinus sweeps (and especially the exponentially sweeping sine wave introduced by Farina). Do you have any suggestions or at least tips to start an implementation by myself? Recently I managed to use the mls

Re: [linux-audio-dev] deconvolver for IR creation anyone?

2003-12-08 Thread Apostolos Dimitromanolakis
I would be interested in this project too. What I'm looking for is actuallay an anti-reverb that will be able to cancel reverbs in a listening room, well always in conjunction with the listener position. The other useful thing would be a phase-filter to correct the phases coming out from a two or

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Jack O'Quin
On Sat, Dec 06, 2003 at 06:35:45PM -0600, Jack O'Quin wrote: Naturally, there are some problems. The worst is that GTK-2 will not tolerate the use of setgid... [EMAIL PROTECTED] writes: hmm... perhaps we trick the binary by setting the gid back to the e_gid after enabling capabilities :)

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Tim Hockin
On Mon, Dec 08, 2003 at 05:12:50PM -0600, Jack O'Quin wrote: If you accept my arguments why this is not the right solution, then the question remains, what to do about GTK-2? I don't suppose the GTK developers are likely to take the test out just because we ask them. Have we tried? It seems

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Jesper Anderson
On Mon, Dec 08, 2003 at 11:38:55AM -0800, Tim Hockin wrote: On Mon, Dec 08, 2003 at 05:12:50PM -0600, Jack O'Quin wrote: If you accept my arguments why this is not the right solution, then the question remains, what to do about GTK-2? I don't suppose the GTK developers are likely to take

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Tim Hockin
On Tue, Dec 09, 2003 at 12:49:24AM +0100, Jesper Anderson wrote: GTK has been like that for years now. Check the archives of SLASH'EM, a Nethack clone, for lots of back and forth. In short, they're not going to change. Do they have a valid reason? Or are they just imposing their paranoia on

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Jens M Andreasen
On Sun, 2003-12-07 at 01:35, Jack O'Quin wrote: I've been experimenting with Torben's LSM for the 2.6 kernel, and the realtime group permissions mechanism we discussed. Naturally, there are some problems. The worst is that GTK-2 will not tolerate the use of setgid... (process:11284):

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Jesper Anderson
On Mon, Dec 08, 2003 at 12:13:48PM -0800, Tim Hockin wrote: On Tue, Dec 09, 2003 at 12:49:24AM +0100, Jesper Anderson wrote: GTK has been like that for years now. Check the archives of SLASH'EM, a Nethack clone, for lots of back and forth. In short, they're not going to change. Do they

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Fernando Pablo Lopez-Lezcano
So, I modified Torben's LSM to check supplementary groups, and this seems to work fine. From a system admin perspective it's pretty good. I'm a member of group `audio', which was accomplished by adding my user ID (joq) to the appropriate entry in /etc/group... [...] well

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Jack O'Quin
Fernando Pablo Lopez-Lezcano [EMAIL PROTECTED] writes: The sgid approach is in addition to having a realtime group or instead? I have the feeling I have missed something in the thread. The setgid approach *is* a match on the realtime group. The question is which of several group IDs to you

[linux-audio-dev] Sharing Music

2003-12-08 Thread Hans Fugal
As in, how do I share my own? What licenses or other scheme do you all use for music that you create and would like to be widely distributed, with or without any other restrictions. What considerations do you take into account? disclaimer: I don't have any cool music to release (yet), although I

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Fernando Pablo Lopez-Lezcano
The sgid approach is in addition to having a realtime group or instead? I have the feeling I have missed something in the thread. The setgid approach *is* a match on the realtime group. The question is which of several group IDs to you actually match against. Torben's jackcaps-0.2

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Tim Hockin
I apologizer if this has been discussed, but I haven't read the whole thread. Has the idea of a simple sched_rr helper been discussed? It can be setuid and only executable by a specific group. rtsched my_rt_app setscheduler drop privs exec I guess that doesn't help

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Jack O'Quin
Fernando Pablo Lopez-Lezcano [EMAIL PROTECTED] writes: Thanks for the clarification, I was getting confused... so the GTK problem only happens if you try to tag executables only for realtime access. Right. GTK complains if its executable uses either setuid or setgid. This is regrettable,

Re: [linux-audio-dev] Linux Security Module for realtime audio

2003-12-08 Thread Jack O'Quin
Tim Hockin [EMAIL PROTECTED] writes: I apologizer if this has been discussed, but I haven't read the whole thread. Has the idea of a simple sched_rr helper been discussed? Roger Larsson has an rt_monitor program that can do most of what you suggest. It also limits the fraction of the CPU

Re: [linux-audio-dev] Sharing Music

2003-12-08 Thread Mark Constable
On Tue, 9 Dec 2003 12:27 pm, Hans Fugal wrote: As in, how do I share my own? What licenses or other scheme do you all use for music that you create and would like to be widely distributed, with or without any other restrictions. What considerations do you take into account? Personally, I