Re: PATCH: cdrecord: avoiding scsi device numbering for ide devices

[Bill Davidsen]

Doug Maxey wrote:
> On Mon, 23 Aug 2004 16:25:17 EDT, Bill Davidsen wrote:
>
> > permission to open. This allows the admin to put in any filter desired,
> > know about vendor commands, etc. It also allows various security
> > setups,  the group can be on the user (trusted users) or on a setgid
> > program  (which limits the security issues).
>
>
>   Down such path lies madness :)   This list would have to be maintained for
>   most every model, of every drive, for every manufacturer.  The list could
>   conceivably change weekly, if not sooner.  This could change, of course, if
>   the use of linux would become as ubiquitous as the dominant redmond produnt, 
>   and the manufacturers would supply the "mini-port" driver bits, as it were.
>
>   The theory is wonderful.  Until there is enough "clout" to change the 
>   manufacturers participation, it is probably futile. :-/

But you don't need magic vendor commands to read and write disk (or 
tape), you can do it with the base commands defined in SCSI-II. You only 
need filter lists for special cases where (a) you really do want vendor 
commands and (b) there's some reason to allow this to normal users.

I doubt that you need magic for any of the other obvious devices like 
SCSI scanners, ZIP and LS120 drives using ATA access rather than 
ide-floppy or ide-scsi, etc. I could be wrong on scanners, the setup 
commands may be more dangerous than I think.

To write CD unfortunately does seem to take more than I want the average 
user to do.

--
   -bill davidsen (davidsen@xxxxxxx)
"The secret to procrastination is to put things off until the
 last possible moment - but no longer"  -me
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