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Date:      Mon, 20 Sep 1999 16:35:47 -0700 (PDT)
From:      Julian Elischer <julian@whistle.com>
To:        John-Mark Gurney <gurney_j@resnet.uoregon.edu>
Cc:        "Matthew N. Dodd" <winter@jurai.net>, Chuck Robey <chuckr@mat.net>, Wayne Cuddy <wayne@crb-web.com>, FreeBSD Hackers List <freebsd-hackers@FreeBSD.ORG>
Subject:   Re: what is devfs?
Message-ID:  <Pine.BSF.3.95.990920163316.6478C-100000@current1.whistle.com>
In-Reply-To: <19990920160107.33337@hydrogen.fircrest.net>

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On Mon, 20 Sep 1999, John-Mark Gurney wrote:

> Matthew N. Dodd scribbled this message on Sep 20:
> > On Sun, 19 Sep 1999, Chuck Robey wrote:
> > > But it was to the subject on the Subject: line, Julian.  We know what side
> > > you're on, but there are 2 sides to the argument.  Isn't there some way
> > > that it can be set up to *optionally* have permission persistence?
> > 
> > Seems like a devfsd using the file monitoring hooks would work; you'd only
> > update the persistent store if you were running devfsd.  devfsd would read
> > the store and init /dev with the contents.  I think the only issue that
> > would involve thinking would be whiteouts (and the actual devfsd code of
> > course.)
> 
> one thing that HAS to happen is the fast that some devices CAN'T "appeare"
> until the devfsd says it can, unless we force a very restrictive permision
> on all devices (600 or something similar) otherwise we will have security
> wholes up the wazoo... don't forget about this... a devfsd daemon is
> definately the way to go...

While I sharply disagree, with your assertion, I also point out that if
you make such a all-singing-all-dancing devfsd, then you might as well get
rid of devfs entirely, and just have devfsd make the devices using normal
mknod commands.



> 
> -- 
>   John-Mark Gurney				Voice: +1 408 975 9651
>   Cu Networking					  
> 
>   "The soul contains in itself the event that shall presently befall it.
>   The event is only the actualizing of its thought." -- Ralph Waldo Emerson
> 



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