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Date:      Thu, 16 Aug 2001 15:09:50 -0500
From:      Alfred Perlstein <bright@mu.org>
To:        Darryl Okahata <darrylo@soco.agilent.com>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: secure Filesystem
Message-ID:  <20010816150950.M38066@elvis.mu.org>
In-Reply-To: <200108161948.MAA03510@mina.soco.agilent.com>; from darrylo@soco.agilent.com on Thu, Aug 16, 2001 at 12:48:59PM -0700
References:  <200108161948.MAA03510@mina.soco.agilent.com>

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* Darryl Okahata <darrylo@soco.agilent.com> [010816 14:49] wrote:
> Konstantin Chuguev <Konstantin.Chuguev@dante.org.uk> wrote:
> 
> > > Look at /usr/ports/security/cfs.  It's a useland crypto-filesystem that
> > > runs over NFS.
> > 
> > I'd say, it's a daemon pretending to be an NFS server. It's running locally
> > on port other than NFS.
> > 
> > Very nice implementation, I use it a lot. A small problem with it is that
> > it seems to support 7-bit file names only.
> 
>      A bigger problem is that doing anything with a file uses up 1-2KB
> PER FILE.  If you want to see cfsd grow *really big*, do a "find ." of
> any large cfs-controlled hierarchy with lots of files.  I'd really like
> to put my MH mail messages under cfs, but I've got too many files (I
> can't afford having a 200+MB cfsd).
> 
>      The memory is not freed until you unmount (and then, the memory is
> only free'd for use by other cfs mounts -- the process size does not, of
> course, shrink).

This is what swap is for. :)

If cfsd doesn't touch all that now unused memory it'll simply be
paged out and probably only paged in occasionally.

-- 
-Alfred Perlstein [alfred@freebsd.org]
Ok, who wrote this damn function called '??'?
And why do my programs keep crashing in it?

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