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=-20.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1, USER_IN_DEF_DKIM_WL autolearn=ham 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 2E767C4338F for ; Wed, 28 Jul 2021 03:10:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1286460234 for ; Wed, 28 Jul 2021 03:10:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233548AbhG1DKb (ORCPT ); Tue, 27 Jul 2021 23:10:31 -0400 Received: from linux.microsoft.com ([13.77.154.182]:53984 "EHLO linux.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233437AbhG1DKa (ORCPT ); Tue, 27 Jul 2021 23:10:30 -0400 Received: from [192.168.86.34] (c-71-197-163-6.hsd1.wa.comcast.net [71.197.163.6]) by linux.microsoft.com (Postfix) with ESMTPSA id ACC712043B96; Tue, 27 Jul 2021 20:10:29 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com ACC712043B96 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1627441829; bh=cZnlhJEeNiBlv5hXlj1BPoJxyc3ZKWu4q0r+/xmo4rs=; h=Subject:To:References:From:Date:In-Reply-To:From; b=d5h47iAbI5y01rc3PnOIxoVMTt4dbcKvMulHNV+k2l3ex0H8zDsLID7y2UcvvtWE+ HC2ahbxvPRamaV2FyPhK4xdNF7g/jRNulig/yaCQHGMCzkexCMw5dl0xo5i8DwQ1/0 J6asiAraFalFLOPqffSDlp2dqE2Hxjc18h9wPzUM= Subject: Re: [dm-devel] [PATCH 0/7] device mapper target measurements using IMA To: Thore Sommer , agk@redhat.com, dm-devel@redhat.com, linux-integrity@vger.kernel.org, nramas@linux.microsoft.com, snitzer@redhat.com, zohar@linux.ibm.com References: <20210727101802.779067-1-public@thson.de> <20210727203337.GA81220@agk-cloud1.hosts.prod.upshift.rdu2.redhat.com> From: Tushar Sugandhi Message-ID: Date: Tue, 27 Jul 2021 20:10:29 -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: <20210727203337.GA81220@agk-cloud1.hosts.prod.upshift.rdu2.redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org Hi Thore, On 7/27/21 1:33 PM, Alasdair G Kergon wrote: >> Creating a dm-verity device with mount then removing it and now if you create it >> again no measurement is generated. Is that the expected behavior? > Each of the relevant dm ioctls should be logged separately each time. If that's > not happening it might need fixing. > Most likely this is because you haven't set CONFIG_IMA_DISABLE_HTABLE=y. See "IMA: support for duplicate measurement records" [1] for details. Please let us know if you still see this behavior after setting CONFIG_IMA_DISABLE_HTABLE=y. Thanks, Tushar [1] https://github.com/torvalds/linux/commit/52c208397c246f0c31d031eb8c41f9c7e9fdec0e