From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Elias da Silva <silva@aurigatec.de>
Cc: Jens Axboe <axboe@suse.de>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] drivers/block/scsi_ioctl.c, Video DVD playback support
Date: Tue, 25 Jan 2005 00:01:50 +0000 [thread overview]
Message-ID: <1106611309.6148.116.camel@localhost.localdomain> (raw)
In-Reply-To: <200501242310.00184.silva@aurigatec.de>
On Llu, 2005-01-24 at 22:10, Elias da Silva wrote:
> This is exactly the point: if the kernel wants to be safe, the
> authentication procedure should be totally implemented in the kernel
> and be protected against further changes via "alternative" ways...
> but it isn't now and probably won't be although it could be.
It provides the DVD_AUTH ioctls to handle this. Why are you banging raw
commands at hardware when there is an abstraction for it ?
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.
next prev parent reply other threads:[~2005-01-25 1:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-22 2:27 [PATCH] drivers/block/scsi_ioctl.c, Video DVD playback support Elias da Silva
2005-01-24 8:36 ` Jens Axboe
2005-01-24 19:59 ` Elias da Silva
2005-01-24 20:39 ` Jens Axboe
2005-01-24 22:10 ` Elias da Silva
2005-01-25 0:01 ` Alan Cox [this message]
2005-01-25 8:05 ` Jens Axboe
2005-01-25 9:29 ` Elias da Silva
2005-01-25 12:44 ` Alan Cox
2005-01-25 15:52 ` Elias da Silva
2005-01-25 12:45 ` Jens Axboe
2005-01-25 16:13 ` Elias da Silva
2005-01-25 16:21 ` Jens Axboe
2005-01-25 16:28 ` Elias da Silva
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