From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from tansi.org (ns.km10532-04.keymachine.de [87.118.102.195]) by mail.saout.de (Postfix) with ESMTP for ; Sun, 22 Aug 2010 18:01:16 +0200 (CEST) Received: from gatewagner.dyndns.org (84-74-164-239.dclient.hispeed.ch [84.74.164.239]) by tansi.org (Postfix) with ESMTPA id C45D7121832B for ; Sun, 22 Aug 2010 18:01:15 +0200 (CEST) Date: Sun, 22 Aug 2010 18:01:14 +0200 From: Arno Wagner Message-ID: <20100822160114.GA11722@tansi.org> References: <1280097464.3309.192.camel@fermat.scientia.net> <4C4CD361.4080000@redhat.com> <1280176686.3266.106.camel@fermat.scientia.net> <4C4E9CF4.3030308@redhat.com> <1280240110.11350.11.camel@etppc09.garching.physik.uni-muenchen.de> <4C4FED84.3040201@redhat.com> <1282338708.3231.53.camel@fermat.scientia.net> <20100821002257.GA12482@tansi.org> <1282481812.3241.50.camel@fermat.scientia.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1282481812.3241.50.camel@fermat.scientia.net> Subject: Re: [dm-crypt] tool to account the written number of bytes to a block device (was: XTS cipher mode limitations) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: dm-crypt@saout.de bwm-ng does it, so it must be possible. I think /proc/diskstats is the place to look. Arno On Sun, Aug 22, 2010 at 02:56:52PM +0200, Christoph Anton Mitterer wrote: > Hi. > > > Regarding this attacks involving snapshots and the total amount of data > written to an encrypted volume. > > Is there an easy way or perhaps even a working tool, which accounts the > total amount of bytes written to a given block device (either directly > or via something that is on top of that block device (filesystem or > other block device layers)? > > Cheers, > Chris. > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier