Delivery-Date: Sat, 30 Aug 2014 19:21:15 -0400
Return-Path: <tor-talk-bounces@lists.torproject.org>
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on moria.seul.org
X-Spam-Level: 
X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED,
	RP_MATCHES_RCVD autolearn=ham version=3.3.1
X-Original-To: archiver@seul.org
Delivered-To: archiver@seul.org
Received: from eugeni.torproject.org (eugeni.torproject.org [38.229.72.13])
	(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))
	(No client certificate requested)
	by khazad-dum.seul.org (Postfix) with ESMTPS id 861171E0A70;
	Sat, 30 Aug 2014 19:21:13 -0400 (EDT)
Received: from eugeni.torproject.org (localhost [127.0.0.1])
	by eugeni.torproject.org (Postfix) with ESMTP id 0FB2830CFB;
	Sat, 30 Aug 2014 23:21:10 +0000 (UTC)
Received: from localhost (localhost [127.0.0.1])
 by eugeni.torproject.org (Postfix) with ESMTP id 5A04830C9A
 for <tor-talk@lists.torproject.org>; Sat, 30 Aug 2014 23:21:06 +0000 (UTC)
X-Virus-Scanned: Debian amavisd-new at eugeni.torproject.org
Received: from eugeni.torproject.org ([127.0.0.1])
 by localhost (eugeni.torproject.org [127.0.0.1]) (amavisd-new, port 10024)
 with ESMTP id 8ml2HJLUQoXn for <tor-talk@lists.torproject.org>;
 Sat, 30 Aug 2014 23:21:06 +0000 (UTC)
Received: from khazad-dum.seul.org (khazad-dum.csail.mit.edu [128.31.0.47])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "moria.seul.org", Issuer "moria.seul.org" (not verified))
 by eugeni.torproject.org (Postfix) with ESMTPS id 3E72730C74
 for <tor-talk@lists.torproject.org>; Sat, 30 Aug 2014 23:21:06 +0000 (UTC)
Received: by khazad-dum.seul.org (Postfix, from userid 501)
 id 39F081E0AB4; Sat, 30 Aug 2014 19:21:03 -0400 (EDT)
Date: Sat, 30 Aug 2014 19:21:03 -0400
From: Roger Dingledine <arma@mit.edu>
To: tor-talk@lists.torproject.org
Message-ID: <20140830232103.GU8819@moria.seul.org>
References: <5400A0AD.2050303@sky-ip.org>
MIME-Version: 1.0
Content-Disposition: inline
In-Reply-To: <5400A0AD.2050303@sky-ip.org>
User-Agent: Mutt/1.5.20 (2009-12-10)
Subject: Re: [tor-talk] warns in logfile about onionskin length and non-OR
 circuit
X-BeenThere: tor-talk@lists.torproject.org
X-Mailman-Version: 2.1.15
Precedence: list
Reply-To: tor-talk@lists.torproject.org
List-Id: "all discussion about theory, design,
 and development of Onion Routing" <tor-talk.lists.torproject.org>
List-Unsubscribe: <https://lists.torproject.org/cgi-bin/mailman/options/tor-talk>, 
 <mailto:tor-talk-request@lists.torproject.org?subject=unsubscribe>
List-Archive: <http://lists.torproject.org/pipermail/tor-talk/>
List-Post: <mailto:tor-talk@lists.torproject.org>
List-Help: <mailto:tor-talk-request@lists.torproject.org?subject=help>
List-Subscribe: <https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk>, 
 <mailto:tor-talk-request@lists.torproject.org?subject=subscribe>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: tor-talk-bounces@lists.torproject.org
Sender: "tor-talk" <tor-talk-bounces@lists.torproject.org>

On Fri, Aug 29, 2014 at 06:47:57PM +0300, s7r wrote:
> Anyone can explain what this warnings are and if they are reason for
> concern?
> 
> [warn] Unexpected onionskin length after decryption: 58

A relay operator on #tor irc channel also reported seeing these (unless
that was you). It's harmless -- it basically means that some client sent
you a malformed (too short) create cell.

It's possible that this is a bug in our Tor client code, but I think
it's more likely that somebody else is working on a Tor client, and has
a bug in their code.

Since there isn't really much the relay operator can do about it, we've
downgraded the warning:
https://trac.torproject.org/projects/tor/ticket/12996

> [warn] Tried to establish rendezvous on non-OR or non-edge circuit.

Upcoming 0.2.5.x releases will have a slightly more useful log message
if this happens again:
https://trac.torproject.org/projects/tor/ticket/12997

--Roger

-- 
tor-talk mailing list - tor-talk@lists.torproject.org
To unsubscribe or change other settings go to
https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk

