From patchwork Wed Oct 7 10:07:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sumit Garg X-Patchwork-Id: 11820265 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2099A17CF for ; Wed, 7 Oct 2020 10:08:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EB092212CC for ; Wed, 7 Oct 2020 10:08:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="mjRB37NL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727908AbgJGKIR (ORCPT ); Wed, 7 Oct 2020 06:08:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727870AbgJGKIQ (ORCPT ); Wed, 7 Oct 2020 06:08:16 -0400 Received: from mail-pf1-x442.google.com (mail-pf1-x442.google.com [IPv6:2607:f8b0:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C35FC0613D3 for ; Wed, 7 Oct 2020 03:08:16 -0700 (PDT) Received: by mail-pf1-x442.google.com with SMTP id n14so1058231pff.6 for ; Wed, 07 Oct 2020 03:08:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=0QkHBy45JfxZtUUWeVh+Xo9BADxCzwJcCK5i5tE7/VU=; b=mjRB37NLj5SNoTE8pv7ujwZNmYXQSd/3yMHce8LtH63xvt4j7v4GQn5Vfx2QX1f6xJ fznOlC0w4fVcF4jdN4xKUqJsiN5dyj64LIV4fbdoj6fO8eO2umNLNNFwkovMWiMXwltK b0X3YB+JTIobDlZU6zCI5EQGkM36JsQfFxn3oYRIGXR7ZRlHCIWoKlqhoN9VAeC6gKwI uk1OKtT9vgtJ5zmTo/Qp/RO/swoOZlgKmUGyKymHLhZDNVptK2IMXpAQEEC/AoqySwpf nKouZsF6xRnLkoT+LckkTn/WcT3OQED6Rs1Wrr9DlJkM/Etba+XzIDydYmaVd6wukM7T tBsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=0QkHBy45JfxZtUUWeVh+Xo9BADxCzwJcCK5i5tE7/VU=; b=OcmKabZ/CBQhjAqm3qhjyb8B0bsPNSZy5TU8eqyxzTwxOIr96VzwDYpSm9cjLOWja+ zbvsGudAkwQgA17t8gJ1y0NEitSlqUOZGE1UNAWbssu5fcBc+ffpuixnQK7hr//MzSQn 9qVsgQI+c1j6s9gN3e8bF7qv0hjfdD0QNRpSsHIU8aCygcG3XoWqI8fEUhO5wxIE5T2g 3SNr0On0psIpVZfNrBDyeY3LcnMY6mgQmcLVNB342yA0f2cQMFanmv5KZTeHVZ8N1uF2 SMPluFZC531nfzL3567QQgGLRxwi2CfM33odR71/t9ib3547L7hIx4bdmp6y3ZSGyhoc UZbA== X-Gm-Message-State: AOAM5320c3NruWzREpUm9sTSLXdEMlPZMPllb1354MXICOySpcaqlYb0 NzqwtxsSCGCmPWyAT2iko0MQzw== X-Google-Smtp-Source: ABdhPJylY343ok9cAC6Btln4FsnUmJ5S0BSBvwLDpHlJJvlvFlZ64WTgUaTu8PpnloGMXk0GhMRqqw== X-Received: by 2002:aa7:910c:0:b029:13e:d13d:a07b with SMTP id 12-20020aa7910c0000b029013ed13da07bmr2262427pfh.18.1602065295978; Wed, 07 Oct 2020 03:08:15 -0700 (PDT) Received: from localhost.localdomain ([117.252.65.235]) by smtp.gmail.com with ESMTPSA id m4sm2322174pgv.87.2020.10.07.03.08.04 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 07 Oct 2020 03:08:15 -0700 (PDT) From: Sumit Garg To: jarkko.sakkinen@linux.intel.com, zohar@linux.ibm.com, jejb@linux.ibm.com Cc: dhowells@redhat.com, jens.wiklander@linaro.org, corbet@lwn.net, jmorris@namei.org, serge@hallyn.com, casey@schaufler-ca.com, janne.karhunen@gmail.com, daniel.thompson@linaro.org, Markus.Wamser@mixed-mode.de, lhinds@redhat.com, keyrings@vger.kernel.org, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, op-tee@lists.trustedfirmware.org, Sumit Garg Subject: [PATCH v7 0/4] Introduce TEE based Trusted Keys support Date: Wed, 7 Oct 2020 15:37:44 +0530 Message-Id: <1602065268-26017-1-git-send-email-sumit.garg@linaro.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: keyrings@vger.kernel.org Add support for TEE based trusted keys where TEE provides the functionality to seal and unseal trusted keys using hardware unique key. Also, this is an alternative in case platform doesn't possess a TPM device. This patch-set has been tested with OP-TEE based early TA which is already merged in upstream [1]. [1] https://github.com/OP-TEE/optee_os/commit/f86ab8e7e0de869dfa25ca05a37ee070d7e5b86b Changes in v7: 1. Added a trusted.source module parameter in order to enforce user's choice in case a particular platform posses both TPM and TEE. 2. Refine commit description for patch #1. Changes in v6: 1. Revert back to dynamic detection of trust source. 2. Drop author mention from trusted_core.c and trusted_tpm1.c files. 3. Rebased to latest tpmdd/master. Changes in v5: 1. Drop dynamic detection of trust source and use compile time flags instead. 2. Rename trusted_common.c -> trusted_core.c. 3. Rename callback: cleanup() -> exit(). 4. Drop "tk" acronym. 5. Other misc. comments. 6. Added review tags for patch #3 and #4. Changes in v4: 1. Pushed independent TEE features separately: - Part of recent TEE PR: https://lkml.org/lkml/2020/5/4/1062 2. Updated trusted-encrypted doc with TEE as a new trust source. 3. Rebased onto latest tpmdd/master. Changes in v3: 1. Update patch #2 to support registration of multiple kernel pages. 2. Incoporate dependency patch #4 in this patch-set: https://patchwork.kernel.org/patch/11091435/ Changes in v2: 1. Add reviewed-by tags for patch #1 and #2. 2. Incorporate comments from Jens for patch #3. 3. Switch to use generic trusted keys framework. Sumit Garg (4): KEYS: trusted: Add generic trusted keys framework KEYS: trusted: Introduce TEE based Trusted Keys doc: trusted-encrypted: updates with TEE as a new trust source MAINTAINERS: Add entry for TEE based Trusted Keys Documentation/security/keys/trusted-encrypted.rst | 203 ++++++++++--- MAINTAINERS | 8 + include/keys/trusted-type.h | 47 +++ include/keys/trusted_tee.h | 55 ++++ include/keys/trusted_tpm.h | 17 +- security/keys/trusted-keys/Makefile | 2 + security/keys/trusted-keys/trusted_core.c | 334 +++++++++++++++++++++ security/keys/trusted-keys/trusted_tee.c | 278 ++++++++++++++++++ security/keys/trusted-keys/trusted_tpm1.c | 336 ++++------------------ 9 files changed, 953 insertions(+), 327 deletions(-) create mode 100644 include/keys/trusted_tee.h create mode 100644 security/keys/trusted-keys/trusted_core.c create mode 100644 security/keys/trusted-keys/trusted_tee.c