Date: Tue, 16 May 1995 01:29:51 -0700 (PDT) From: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> To: bde@zeta.org.au (Bruce Evans) Cc: pst@Shockwave.COM, wpaul@skynet.ctr.columbia.edu, freebsd-bugs@FreeBSD.org Subject: Re: misc/423: security of sound devices Message-ID: <199505160829.BAA08331@gndrsh.aac.dev.com> In-Reply-To: <199505160633.QAA24269@godzilla.zeta.org.au> from "Bruce Evans" at May 16, 95 04:33:04 pm
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> > >[console user should own the audio devices] > > >The only bug here is (I think) a lack of documentation. /usr/bin/login > >already has support for /etc/fbtab and /etc/logindevperm (whichever > >name you please) that let you define permissions and ownerships for > >frame buffer and sound devices that take effect when a user logs in > >on the console. /etc/fbtab is the file used in SunOS 4.1.x. Solaris 2.x > >uses /etc/logindevperm. > > We have /usr/src/etc/fbtab but it doesn't have enough devices, all > devices are commented out, and it doesn't get installed. I asked Guido over a week ago to do something about the copyright on login_fbtab.c. It is about to be cvs removed as there is not a proper copyright on it :-(. > >If you look at /usr/src/usr.bin/login/login_fbtab.c you'll see the > >comments that describe what's supposed to happen. Those comments > >should probably be made into a man page, and a default /etc/fbtab > > We have fbtab.5 and it even gets installed :-). > > >file should probably be added to the distribution so people will > >have some idea that this feature exists. > > The distribution should be as secure as possible by default. What > goes wrong if /etc/fbtab is too restrictive? What is the equivalent > of `mesg y'? > > Bruce > -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Custom computers for FreeBSD
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