Subject: Re: kern/36661: any users can modify envsys setting
To: None <gnats-bugs@NetBSD.org>
From: Allen Briggs <firstname.lastname@example.org>
Date: 07/17/2007 11:19:46
On Tue, Jul 17, 2007 at 03:10:04PM +0000, Juan RP wrote:
> > >Fix:
> > - make sysmonioctl_envsys check FWRITE for ENVSYS_SETDICTIONARY.
> > - make envstat(8) use O_WDWR when appropriate.
> I asked that two months ago when I started it. Nobody answered me if
> envstat -m should be used only by root or something like this.
I'm sorry no one answered. I don't know about root-only, but it
makes sense for the "set" operations to be governed by write access
to the device. That is consistent with the BSD/*nix model.
Reading should be governed by read (FREAD) access to the device,
modifying/setting/writing should be governed by write (FWRITE)
Allen Briggs | http://www.ninthwonder.com/~briggs/ | email@example.com