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Date:      Mon, 2 Apr 2007 09:00:30 -0500
From:      Jim Rees <rees@umich.edu>
To:        Frank Mayhar <frank@exit.com>
Cc:        freebsd-fs@freebsd.org
Subject:   Re: NFS4 on FreeBSD?
Message-ID:  <20070402140030.GA16107@citi.umich.edu>
In-Reply-To: <1175520945.44258.8.camel@jill.exit.com>
References:  <1175481486.39754.2.camel@jill.exit.com> <20070402120048.GA19688@citi.umich.edu> <1175520945.44258.8.camel@jill.exit.com>

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Frank Mayhar wrote:

  Hmm.  It was my impression that the rpcsec_gss stuff was only for NFS4.
  I take it that my impression was wrong?  (I guess I had better double-
  check and make sure that it's really NFS4 that is needed, and not
  kerberized NFS3.)

That's correct, but there is an earlier non-gss kerberized v3 protocol.  I
believe at one time there were implementations in bsd and linux, but these
are being removed for lack of interest and to push people to v4.  I can't
find any traces of it in FreeBSD but parts of it are still in OpenBSD.  I
have never used it and don't know if it works.

  I take it that the later client is a descendant of the one that is in
  the FreeBSD tree?  That might be a place to start.  Has it been used at
  all?

It was intended to be portable and at one time ran on Darwin, Open, and
FreeBSD.  It was a very clever design by Marius Eriksen, done here at CITI,
that did most of the rpc work in a user daemon without adding unnecessary
user-to-kernel data copies.  No one is using it now as far as I know.



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