Re: [bug] 2.6.8: CDROM_SEND_PACKET ioctls failing as non-root on ide scsi drives

Jens Axboe
2004-10-04T13:58:36Z

On Mon, Oct 04 2004, Sean Neakums wrote:
> Jens Axboe <axboe@suse.de> writes:
>
> > On Mon, Oct 04 2004, Sean Neakums wrote:
> >> CDROM_SEND_PACKET calls down to sg_io, which calls verify_command,
> >> which will not permit anyone but root to use any unrecognised
> >> commands. GET CONFIGURATION does not seems to be one of those
> >> recognised. This check for unrecognised commands is a fairly recent
> >> addition, IIRC.
> >
> > 2.6.8 didn't have any command granularity, you must be root to issue any
> > comand there.
>
> I was looking at 2.6.8.1 when I wrote the above, although it's
> possible my eye skipped over something.
>
> verify_command certainly seems to do the check:
>
> http://lxr.linux.no/source/drivers/block/scsi_ioctl.c?v=2.6.8.1#L113
>
> And it looks the same in the 2.6.8 tree I have here, too.

You are right, it was added before, my recollection of the events
apparently isn't so good either. You are right in that GET_CONFIGURATION
was added later, post 2.6.8 release.

> (Not trying to be an ass, just concerned about my reading comprehension.)

:-)

--
Jens Axboe