Re: [babel] [Babel-users] Babel MAC auth fails due to packet reordering

Juliusz Chroboczek <jch@irif.fr> Fri, 13 May 2022 22:46 UTC

Return-Path: <jch@irif.fr>
X-Original-To: babel@ietfa.amsl.com
Delivered-To: babel@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id D26BBC19D46A for <babel@ietfa.amsl.com>; Fri, 13 May 2022 15:46:56 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.888
X-Spam-Level:
X-Spam-Status: No, score=-1.888 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, T_SPF_TEMPERROR=0.01] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7B88f9r4sPUe for <babel@ietfa.amsl.com>; Fri, 13 May 2022 15:46:52 -0700 (PDT)
Received: from korolev.univ-paris7.fr (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3663CC19D468 for <babel@ietf.org>; Fri, 13 May 2022 15:46:51 -0700 (PDT)
Received: from mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [81.194.30.253]) by korolev.univ-paris7.fr (8.14.4/8.14.4/relay1/82085) with ESMTP id 24DMkicu012407; Sat, 14 May 2022 00:46:44 +0200
Received: from mailhub.math.univ-paris-diderot.fr (localhost [127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTP id C40DCD1464; Sat, 14 May 2022 00:46:44 +0200 (CEST)
X-Virus-Scanned: amavisd-new at math.univ-paris-diderot.fr
Received: from mailhub.math.univ-paris-diderot.fr ([127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id fG5XS4f4ncEz; Sat, 14 May 2022 00:46:43 +0200 (CEST)
Received: from pirx.irif.fr (82-64-141-196.subs.proxad.net [82.64.141.196]) (Authenticated sender: jch) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTPSA id D7FBCD1462; Sat, 14 May 2022 00:46:42 +0200 (CEST)
Date: Sat, 14 May 2022 00:46:42 +0200
Message-ID: <87v8u9yrsd.wl-jch@irif.fr>
From: Juliusz Chroboczek <jch@irif.fr>
To: Daniel Gröber <dxld@darkboxed.org>
Cc: Toke Høiland-Jørgensen <toke@toke.dk>, babel-users@alioth-lists.debian.net, babel@ietf.org
In-Reply-To: <87wnepys1r.wl-jch@irif.fr>
References: <8735hj23pq.fsf@toke.dk> <87sfpi4uwh.wl-jch@irif.fr> <20220513185419.dxhmkyfjmnbgub53@House> <20220513190309.sixy7wrwhssthvdu@House> <87wnepys1r.wl-jch@irif.fr>
User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.1 Mule/6.0
MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue")
Content-Type: text/plain; charset="US-ASCII"
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (korolev.univ-paris7.fr [194.254.61.138]); Sat, 14 May 2022 00:46:44 +0200 (CEST)
X-Miltered: at korolev with ID 627EDFD4.000 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)!
X-j-chkmail-Enveloppe: 627EDFD4.000 from mailhub.math.univ-paris-diderot.fr/mailhub.math.univ-paris-diderot.fr/null/mailhub.math.univ-paris-diderot.fr/<jch@irif.fr>
X-j-chkmail-Score: MSGID : 627EDFD4.000 on korolev.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000
X-j-chkmail-Status: Ham
Archived-At: <https://mailarchive.ietf.org/arch/msg/babel/KC7jHpbJS58xUZXS7_n2Jg9ZgCQ>
Subject: Re: [babel] [Babel-users] Babel MAC auth fails due to packet reordering
X-BeenThere: babel@ietf.org
X-Mailman-Version: 2.1.34
Precedence: list
List-Id: "A list for discussion of the Babel Routing Protocol." <babel.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/babel>, <mailto:babel-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/babel/>
List-Post: <mailto:babel@ietf.org>
List-Help: <mailto:babel-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/babel>, <mailto:babel-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 13 May 2022 22:46:56 -0000

> I've managed to reproduce the problem locally, and I've confirmed that the
> split-PC approach fixes the issue.  I'm seeing failed PC validations, but
> not enough to cause association failure.

Just to be clear -- I'm seeing failed PC validations with stock 1.12.  I'm
not seeing any unexpected PC validation failures with the split-PC version.

-- Juliusz