Date: Tue, 16 May 1995 00:24:10 +0100 From: Mark Valentine <mark@linus.demon.co.uk> To: Bruce Evans <bde@zeta.org.au>, pst@shockwave.com Cc: current@FreeBSD.org Subject: Re: misc/423: security of sound devices Message-ID: <199505152324.AAA04149@linus.demon.co.uk> In-Reply-To: Bruce Evans's message of May 16, 6:37am
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> From: Bruce Evans <bde@zeta.org.au> > Date: Tue 16 May, 1995 > Subject: Re: misc/423: security of sound devices > >The right model is to do the same thing that we do with /dev/console. If > >you're logged in at the console (or local X server), you own the sound devices. > >When you logout, they should go back to root.sound ownership, with no world > >access. > > This model applies to other devices physically near the console. Joysticks. > Floppies? Scanners. Printers? It's a difficult line to draw. Usually on a PC, audio devices and joysticks are I/O devices associated with the console (in terms of X, they're part of the display in the same way as the mouse, monitor and keyboard). This isn't necessarily true on multi-headed systems. Scanners and printers, however, are resources not necessarily monopolised by the user at the console. Mark.
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