From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1,USER_IN_DEF_DKIM_WL autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 35450C1B08C for ; Wed, 14 Jul 2021 20:20:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1A784613C0 for ; Wed, 14 Jul 2021 20:20:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232185AbhGNUWz (ORCPT ); Wed, 14 Jul 2021 16:22:55 -0400 Received: from linux.microsoft.com ([13.77.154.182]:44030 "EHLO linux.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234610AbhGNUWy (ORCPT ); Wed, 14 Jul 2021 16:22:54 -0400 Received: from [10.106.164.77] (unknown [131.107.8.205]) by linux.microsoft.com (Postfix) with ESMTPSA id C1E9B20B6C50; Wed, 14 Jul 2021 13:20:02 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com C1E9B20B6C50 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1626294002; bh=CI2oVvUcJHhMJovBZUzCe28YfUdYQ0mCKIALYAE50Gg=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=Iiz42R2oHhkUkarSS4dE205fLbBzvBElAzKaHupirGeJw2r8hQLDTRIbOR8uvYJhL 4saJXFw0p9jUGahlMVeSb0Q9TmkRRhClnxl81EnMXn8bpkyra3o9dSXvU8Ebj3eSLE LGC2I54TTMiGFXHBWXuYnsNTJIruwHQ73XHjHK/U= Subject: Re: [dm-devel] [PATCH 0/7] device mapper target measurements using IMA To: Thore Sommer Cc: agk@redhat.com, dm-devel@redhat.com, linux-integrity@vger.kernel.org, nramas@linux.microsoft.com, snitzer@redhat.com, zohar@linux.ibm.com References: <20210713004904.8808-1-tusharsu@linux.microsoft.com> <20210714113241.28580-1-public@thson.de> From: Tushar Sugandhi Message-ID: Date: Wed, 14 Jul 2021 13:20:02 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210714113241.28580-1-public@thson.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org Hello Thore, On 7/14/21 4:32 AM, Thore Sommer wrote: > Thank you for bringing IMA support to device mapper. The addition of dm-verity > to IMA is very useful for the project I'm working on where we boot > our distribution from removable USB media. Thank you for the positive ack. Appreciate it. > One of our goals is to detect tampering of the root file system remotely. > Therefore we enabled dm-verity support but implementing remote attestation for > dm-verity from userland is not ideal which was our initial plan. Yes, remote attestation from userland is not ideal. > This patch set enables us to leverage to already implemented IMA attestation > infrastructure by the remote attestation service that we are using (Keylime) > without trying to roll a custom solution. I am glad that DM-IMA functionality is useful for your scenario. > We tested the initial RFC patch set and will continue testing with > this one to see if it fully works in our environment and with our use > case. Thank you for testing the RFC patch set. Please let me know if you discover any bugs in this one, or have any other feedback. Thanks again. Regards, Tushar > Thore Sommer From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A39C8C12002 for ; Wed, 14 Jul 2021 20:20:27 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3DC72613C3 for ; Wed, 14 Jul 2021 20:20:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3DC72613C3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: mail.kernel.org; spf=tempfail smtp.mailfrom=dm-devel-bounces@redhat.com Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-228-G0boN5usPIaG9UBbttDvXQ-1; Wed, 14 Jul 2021 16:20:24 -0400 X-MC-Unique: G0boN5usPIaG9UBbttDvXQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C398F801107; Wed, 14 Jul 2021 20:20:19 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id BADB61962F; Wed, 14 Jul 2021 20:20:18 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id D0CD31809C99; Wed, 14 Jul 2021 20:20:15 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 16EKKD87012460 for ; Wed, 14 Jul 2021 16:20:13 -0400 Received: by smtp.corp.redhat.com (Postfix) id 8513B115D7A0; Wed, 14 Jul 2021 20:20:13 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast01.extmail.prod.ext.rdu2.redhat.com [10.11.55.17]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 7FA54115D7AB for ; Wed, 14 Jul 2021 20:20:06 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [205.139.110.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 89BDB858EEC for ; Wed, 14 Jul 2021 20:20:06 +0000 (UTC) Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by relay.mimecast.com with ESMTP id us-mta-146-k0wWoargOlmVPRXWI8x4pg-1; Wed, 14 Jul 2021 16:20:04 -0400 X-MC-Unique: k0wWoargOlmVPRXWI8x4pg-1 Received: from [10.106.164.77] (unknown [131.107.8.205]) by linux.microsoft.com (Postfix) with ESMTPSA id C1E9B20B6C50; Wed, 14 Jul 2021 13:20:02 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com C1E9B20B6C50 To: Thore Sommer References: <20210713004904.8808-1-tusharsu@linux.microsoft.com> <20210714113241.28580-1-public@thson.de> From: Tushar Sugandhi Message-ID: Date: Wed, 14 Jul 2021 13:20:02 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210714113241.28580-1-public@thson.de> X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-loop: dm-devel@redhat.com Cc: snitzer@redhat.com, zohar@linux.ibm.com, nramas@linux.microsoft.com, dm-devel@redhat.com, linux-integrity@vger.kernel.org, agk@redhat.com Subject: Re: [dm-devel] [PATCH 0/7] device mapper target measurements using IMA X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Hello Thore, On 7/14/21 4:32 AM, Thore Sommer wrote: > Thank you for bringing IMA support to device mapper. The addition of dm-verity > to IMA is very useful for the project I'm working on where we boot > our distribution from removable USB media. Thank you for the positive ack. Appreciate it. > One of our goals is to detect tampering of the root file system remotely. > Therefore we enabled dm-verity support but implementing remote attestation for > dm-verity from userland is not ideal which was our initial plan. Yes, remote attestation from userland is not ideal. > This patch set enables us to leverage to already implemented IMA attestation > infrastructure by the remote attestation service that we are using (Keylime) > without trying to roll a custom solution. I am glad that DM-IMA functionality is useful for your scenario. > We tested the initial RFC patch set and will continue testing with > this one to see if it fully works in our environment and with our use > case. Thank you for testing the RFC patch set. Please let me know if you discover any bugs in this one, or have any other feedback. Thanks again. Regards, Tushar > Thore Sommer -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel