From patchwork Thu Sep 17 13:46:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sumit Garg X-Patchwork-Id: 11782621 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 4A482746 for ; Thu, 17 Sep 2020 14:19:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 24B812078D for ; Thu, 17 Sep 2020 14:19:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="moaySg5d" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727404AbgIQOMd (ORCPT ); Thu, 17 Sep 2020 10:12:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727227AbgIQN6S (ORCPT ); Thu, 17 Sep 2020 09:58:18 -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 EEBEAC061226 for ; Thu, 17 Sep 2020 06:47:07 -0700 (PDT) Received: by mail-pf1-x442.google.com with SMTP id n14so1243430pff.6 for ; Thu, 17 Sep 2020 06:47:07 -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=japyhlZJHqjvvY23WBswkoPhDdPOCw8vAFWR64JRMAo=; b=moaySg5dik4Lmk9RXXScA/9T274DPHQu5jVZ1/PZgJaWyJGy2IXTZeDsTOAmWRub7Q xTDMK2BkQ/z+NHQv06RZDa2oi6oALRQvwlBK1ZMpzu0Hjwa58wFxU0qYWhB4Mx3UKhYj XctS3mxqYaT46bZTcV6TAlP4tHHTz6YhhjEnROMaKgQdB2tdhuF+iigcIgdLlDtb1Mpx 1bmXzG/MmuKfrTLTPh0V/VGy5AHsDqhpD9xq8geIeAXbTSIF0AG3QTNVnCpZ/oDy2os5 T/hxpO4wSNhDTccMFo5L5LR8mP4OM8AcLrX0utHb6FG9YAlRrAYhQ8+8QR7wcarNCIhB vTYw== 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=japyhlZJHqjvvY23WBswkoPhDdPOCw8vAFWR64JRMAo=; b=iD80Dpjkr4nJbik3PgvtXnel3JjjhZjBI6Zh3mj5yX8/RnWf/xcrnRMwgrAAdnSquc b94qaIJCsCJX3M98IonzcwY0/EyLEqvx7X9+HlqY5voSHKJMibb7E+6vGs/wGeJtDs45 +1BB3380N5UwJS5Nh5jPgiqGrDN8z38RtiHmBpkvaB6P8rLzs+webEfmh5sWB4UwfQ9e 59q96Fg1E+E4cQu6weqwraMgUF+6xnJnuLGRm7oa/2CCyTmxrruByalDlGhtUKYmoF2x q4Dy+mV+y2zLbuOfLrMKfypyPIO38WHz27Lr5w6MUZSITgFZ2KyrSeq30LogpAEcS6FG MyKg== X-Gm-Message-State: AOAM530Cyglyd1pIUlqhp95w/XHHjpRunAhuJB8PUAvy9CZSeBMoC5vE 2mqMwRvf8LMm5WrD1DMG73R1XA== X-Google-Smtp-Source: ABdhPJwGkICdVHzr7bA01n7thT2TYn0FduI6F4TEUuQvhGZbu4J3IGB6KK7FOQEYljS4a7Z+xROv6w== X-Received: by 2002:a65:408b:: with SMTP id t11mr21151814pgp.199.1600350426605; Thu, 17 Sep 2020 06:47:06 -0700 (PDT) Received: from localhost.localdomain ([117.252.66.163]) by smtp.gmail.com with ESMTPSA id i73sm6821120pfe.67.2020.09.17.06.46.58 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 17 Sep 2020 06:47:05 -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 v6 0/4] Introduce TEE based Trusted Keys support Date: Thu, 17 Sep 2020 19:16:34 +0530 Message-Id: <1600350398-4813-1-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 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 | 42 +++ 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 | 325 +++++++++++++++++++++ security/keys/trusted-keys/trusted_tee.c | 278 ++++++++++++++++++ security/keys/trusted-keys/trusted_tpm1.c | 336 ++++------------------ 9 files changed, 939 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