SCSI command filtering

Posted Aug 3, 2006 14:47 UTC (Thu) by pjones (subscriber, #31722)
In reply to: SCSI command filtering by NRArnot
Parent article: SCSI command filtering

Its default state isn't to do nothing. By default, for example, you can't do MODE SELECT as a normal user. The reasoning seems good at face value; you can use it to e.g. set hard drive passwords. But for some devices, you have to be able to do that. Some CD drives, for example, can't be used to rip CDs without first issuing a MODE SELECT. So it's not as black and white as one would hope. Sometimes you don't want a user to be able to do something, and sometimes they have to be able to do it.

It really is per-device. Each device's version of the SCSI command set has some variation, and on some you need to do things which on others you do not. The filter needs to be modifiable accordingly.