On Tue, Jan 25 2005, Elias da Silva wrote: > : Someone did actually have a demo of a small fs that allowed you to > : fiddle with the status but possibly the code could get smarter for > : "exclusive user of media". I'm not sure if that is worth it. > > Do you have the name of the fs and/or the name of author?
If I'm not mistaken, Peter Jones has posted a few iterations of such an fs some months ago. > Do we have a clear understanding that this fs would only > be a benefit if *All* the different ways to access the device would > use the same policy enforcement and consistently allow or > disallow certain operations regardless of the access method? The command restriction table _only_ works through the SG_IO path, which does include CDROM_SEND_PACKET as well since it is layered on top of SG_IO. It doesn't control various driver ioctl exported interfaces, they would need to add a callback to verify_command() for permission checks. -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
