From owner-freebsd-usb@FreeBSD.ORG  Wed Oct  8 07:03:36 2014
Return-Path: <owner-freebsd-usb@FreeBSD.ORG>
Delivered-To: freebsd-usb@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id E127DBCC;
 Wed,  8 Oct 2014 07:03:36 +0000 (UTC)
Received: from mail.turbocat.net (heidi.turbocat.net [88.198.202.214])
 (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 9F17E12F;
 Wed,  8 Oct 2014 07:03:36 +0000 (UTC)
Received: from laptop015.home.selasky.org
 (cm-176.74.213.204.customer.telag.net [176.74.213.204])
 (using TLSv1 with cipher ECDHE-RSA-AES128-SHA (128/128 bits))
 (No client certificate requested)
 by mail.turbocat.net (Postfix) with ESMTPSA id 6A47E1FE022;
 Wed,  8 Oct 2014 09:03:33 +0200 (CEST)
Message-ID: <5434E1C3.9090605@selasky.org>
Date: Wed, 08 Oct 2014 09:03:31 +0200
From: Hans Petter Selasky <hps@selasky.org>
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64;
 rv:24.0) Gecko/20100101 Thunderbird/24.1.0
MIME-Version: 1.0
To: "Julian H. Stacey" <jhs@berklix.com>
Subject: Re: BadUSB - On Accessories that Turn Evil, by Karsten Nohl + Jakob
 Lell
References: <201410072236.s97Ma56M051223@fire.js.berklix.net>
In-Reply-To: <201410072236.s97Ma56M051223@fire.js.berklix.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-security@freebsd.org, Poul-Henning Kamp <phk@phk.freebsd.dk>,
 freebsd-usb@freebsd.org
X-BeenThere: freebsd-usb@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: FreeBSD support for USB <freebsd-usb.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-usb>,
 <mailto:freebsd-usb-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-usb/>
List-Post: <mailto:freebsd-usb@freebsd.org>
List-Help: <mailto:freebsd-usb-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-usb>,
 <mailto:freebsd-usb-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 08 Oct 2014 07:03:37 -0000

Hi,

Can you test the following kernel patch and give some feedback:

https://svnweb.freebsd.org/changeset/base/272733

After the patch you will get something like:

hw.usb.disable_enumeration: 0
dev.uhub.0.disable_enumeration: 0
dev.uhub.1.disable_enumeration: 0
...

which is also settable through /boot/loader.conf (tunable)

--HPS