From owner-freebsd-fs@freebsd.org Sun Jan 7 22:56:16 2018 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D0C29E642C2 for ; Sun, 7 Jan 2018 22:56:16 +0000 (UTC) (envelope-from wollman@hergotha.csail.mit.edu) Received: from hergotha.csail.mit.edu (wollman-1-pt.tunnel.tserv4.nyc4.ipv6.he.net [IPv6:2001:470:1f06:ccb::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 7A5A67D309 for ; Sun, 7 Jan 2018 22:56:16 +0000 (UTC) (envelope-from wollman@hergotha.csail.mit.edu) Received: from hergotha.csail.mit.edu (localhost [127.0.0.1]) by hergotha.csail.mit.edu (8.15.2/8.15.2) with ESMTP id w07MuEsQ060132; Sun, 7 Jan 2018 17:56:14 -0500 (EST) (envelope-from wollman@hergotha.csail.mit.edu) Received: (from wollman@localhost) by hergotha.csail.mit.edu (8.15.2/8.14.4/Submit) id w07MuEF7060131; Sun, 7 Jan 2018 17:56:14 -0500 (EST) (envelope-from wollman) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <23122.42381.906072.663073@hergotha.csail.mit.edu> Date: Sun, 7 Jan 2018 17:56:13 -0500 From: Garrett Wollman To: Rick Macklem Cc: Benjamin Kaduk , "freebsd-fs\@freebsd.org" Subject: Re: Anyone managed to build a static gssd? In-Reply-To: References: <23121.48634.348216.421634@hergotha.csail.mit.edu> <20180107190802.GD25484@kduck.kaduk.org> X-Mailer: VM 8.2.0b under 25.3.1 (amd64-portbld-freebsd10.3) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (hergotha.csail.mit.edu [127.0.0.1]); Sun, 07 Jan 2018 17:56:14 -0500 (EST) X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED, HEADER_FROM_DIFFERENT_DOMAINS autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on hergotha.csail.mit.edu X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 07 Jan 2018 22:56:16 -0000 < said: > Also, just fyi, RPCSEC_GSS Version 1 (the only one supported by FreeBSD) > uses good old DES and uses the session key created by the Kerberos > libraries via a TGT or keytab entry for this. > --> As such, your TGT encryption choice must result in a 56/64 bit session key. > (I never went beyond using DES for TGT encryption, but I suspect MIT > doesn't like that idea;-) That's good to know, and suggests that maybe I shouldn't bother with trying this right now. As it happens, I've been working on benchmarking recently, and the performance of NFSv4.1 is downright terrible compared to v3, at least with my particular combination of client and server. Haven't investigated yet where the slowdown is. What would it take to get AES support? -GAWollman