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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 2EC2CC2BB85 for ; Mon, 13 Apr 2020 02:23:42 +0000 (UTC) Received: from vger.kernel.org (unknown [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE5DB20776 for ; Mon, 13 Apr 2020 02:23:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EE5DB20776 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727922AbgDMCXk (ORCPT ); Sun, 12 Apr 2020 22:23:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.18]:39650 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727520AbgDMCXk (ORCPT ); Sun, 12 Apr 2020 22:23:40 -0400 Received: from out30-133.freemail.mail.aliyun.com (out30-133.freemail.mail.aliyun.com [115.124.30.133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BEBCFC0086C7; Sun, 12 Apr 2020 19:23:39 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R101e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01f04397;MF=tianjia.zhang@linux.alibaba.com;NM=1;PH=DS;RN=10;SR=0;TI=SMTPD_---0TvJd4lf_1586744615; Received: from 30.27.118.45(mailfrom:tianjia.zhang@linux.alibaba.com fp:SMTPD_---0TvJd4lf_1586744615) by smtp.aliyun-inc.com(127.0.0.1); Mon, 13 Apr 2020 10:23:36 +0800 Subject: Re: [PATCH v2 0/2] support to read and tune appraise mode in runtime To: Nayna , zhang.jia@linux.alibaba.com Cc: zohar@linux.ibm.com, dmitry.kasatkin@gmail.com, jmorris@namei.org, serge@hallyn.com, zhangliguang@linux.alibaba.com, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org References: <20200409103440.47946-1-tianjia.zhang@linux.alibaba.com> <1e160d08-788a-0c3b-0f9f-2077e55b286a@linux.vnet.ibm.com> From: Tianjia Zhang Message-ID: Date: Mon, 13 Apr 2020 10:23:35 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <1e160d08-788a-0c3b-0f9f-2077e55b286a@linux.vnet.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020/4/12 5:43, Nayna wrote: > > On 4/9/20 6:34 AM, Tianjia Zhang wrote: >> Support the read and write operations of ima_appraise by adding a >> securifyfs file 'appraise_mode'. >> >> In order to tune appraise mode in runtime, writing a PKCS#7 signature > > I am curious to know why would you tune appraise mode in runtime ? > > Thanks & Regards, > >       - Nayna Mainly used for emergency shutdown under some abnormal conditions. Thanks, Tianjia