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[209.132.180.67]) by mx.google.com with ESMTP id r4si43394512pgb.245.2019.08.03.19.19.23; Sat, 03 Aug 2019 19:19:38 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2406145AbfHBTkV (ORCPT + 99 others); Fri, 2 Aug 2019 15:40:21 -0400 Received: from mga05.intel.com ([192.55.52.43]:16762 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2403792AbfHBTkV (ORCPT ); Fri, 2 Aug 2019 15:40:21 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Aug 2019 12:40:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,339,1559545200"; d="scan'208";a="201765804" Received: from psathya-mobl1.ger.corp.intel.com (HELO localhost) ([10.252.36.242]) by fmsmga002.fm.intel.com with ESMTP; 02 Aug 2019 12:40:16 -0700 Date: Fri, 2 Aug 2019 22:40:15 +0300 From: Jarkko Sakkinen To: Roberto Sassu Cc: jejb@linux.ibm.com, zohar@linux.ibm.com, jgg@ziepe.ca, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, keyrings@vger.kernel.org, linux-kernel@vger.kernel.org, crazyt2019+lml@gmail.com, tyhicks@canonical.com, nayna@linux.vnet.ibm.com, silviu.vlasceanu@huawei.com Subject: Re: [PATCH] KEYS: trusted: allow module init if TPM is inactive or deactivated Message-ID: <20190802194015.btthaf5ey4n64tzt@linux.intel.com> References: <20190705163735.11539-1-roberto.sassu@huawei.com> <20190711194811.rfsohbfc3a7carpa@linux.intel.com> <20190801163215.mfkagoafkxscesne@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: NeoMutt/20180716 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 02, 2019 at 10:21:16AM +0200, Roberto Sassu wrote: > On 8/1/2019 6:32 PM, Jarkko Sakkinen wrote: > > On Mon, Jul 15, 2019 at 06:44:28PM +0200, Roberto Sassu wrote: > > > According to the bug report at https://bugs.archlinux.org/task/62678, > > > the trusted module is a dependency of the ecryptfs module. We should > > > load the trusted module even if the TPM is inactive or deactivated. > > > > > > Given that commit 782779b60faa ("tpm: Actually fail on TPM errors during > > > "get random"") changes the return code of tpm_get_random(), the patch > > > should be modified to ignore the -EIO error. I will send a new version. > > > > Do you have information where this dependency comes from? > > ecryptfs retrieves the encryption key from encrypted keys (see > ecryptfs_get_encrypted_key()). So... what is preventing removing this requirement "in the source"? /Jarkko