Messages in this thread | | | From | Bill Davidsen <> | Subject | Re: PATCH: cdrecord: avoiding scsi device numbering for ide devices | Date | Wed, 25 Aug 2004 14:29:18 -0400 |
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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@tmr.com) "The secret to procrastination is to put things off until the last possible moment - but no longer" -me - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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