From patchwork Tue Nov 3 16:01:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sumit Garg X-Patchwork-Id: 11878243 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 618DF697 for ; Tue, 3 Nov 2020 16:02:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3D5A8223C7 for ; Tue, 3 Nov 2020 16:02:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="WUvK9hiB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727665AbgKCQCY (ORCPT ); Tue, 3 Nov 2020 11:02:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33622 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727109AbgKCQCY (ORCPT ); Tue, 3 Nov 2020 11:02:24 -0500 Received: from mail-pg1-x543.google.com (mail-pg1-x543.google.com [IPv6:2607:f8b0:4864:20::543]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 385C4C0613D1 for ; Tue, 3 Nov 2020 08:02:24 -0800 (PST) Received: by mail-pg1-x543.google.com with SMTP id i26so14009481pgl.5 for ; Tue, 03 Nov 2020 08:02:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=8p0zAqijMFY2LZHySc9B1ski8j200B9xN63VufhvfZE=; b=WUvK9hiBfaewCF9lu/rnHA/ky1TO9SLKq5ubWrc5NfyBQalP1EDJFCgB620q5hzm8P w7RqbA90o7pWxpiD+JQTGkZj/vELhrwHlo53vmxaXkdrHs56KSdUT8cmWchK9SdOLPsb MIyRS6VCBLK3GkPdVZpsjiuVJ8eZo29MM7dRDd/oC3PF2hJu9WHHNg8Q3/eeqDnEVe8M u5s/UYCObUpv8BdQ2ssY0JMUat1++qs66Y2pTlhfDXutXg95e2WmlZ0amNC2BUaQsQfu T+70gsyMITdKOD5SRY5wpAN6KRH2geAbi9LnGmLunPGcay45ZutIZULvHh8iF/s+a1Js Z2xA== 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=8p0zAqijMFY2LZHySc9B1ski8j200B9xN63VufhvfZE=; b=IPvQ+KVcv27YbWCdMklWP1TTPAJmhz+PqsGCKSV9PdmekmZ/YUg/m9GQlWEImbTkq1 v8RgszX27PPITXJxvPgYHQupXDKRptSZ3Si6mmPCUg9U6kRSXDK+FkvH9hGk9FLyRyp7 TlVyt7gum3uFpjrmgz2NF8giTGxclL6eBbBLMjVxlK+1rjzkmWPniLUI3dRRiyC6GHIQ RMDk9Jhho6dj6qMq1Ad710ZPoLUaPEOHakmfpwgmkexbB9pm5VgD9m04xX3rabVdPQcO codhUXuM1+B1KIyh7xU8hsQ4kZ+47WVU2VHUHjZIlgQYj3ZGZh8tmNSgiIX7L1RplpJp B+cg== X-Gm-Message-State: AOAM531y7484p1uZLgkbaZ7cSv1ui2KZlFsWh4oBBSiE8ydMM2q1ddrh VjjTBTA+KZrZ1rPLS8QzQY7Fvw== X-Google-Smtp-Source: ABdhPJzP+u5vyjCsNCaso/eSJbT/0D07SqbTdgo7fO1H1p7jSMwcJ3JjzNbr2nmtIaOIuGQqaoxE5Q== X-Received: by 2002:a63:5466:: with SMTP id e38mr17855102pgm.23.1604419343676; Tue, 03 Nov 2020 08:02:23 -0800 (PST) Received: from localhost.localdomain ([122.173.169.225]) by smtp.gmail.com with ESMTPSA id j140sm8471006pfd.216.2020.11.03.08.02.14 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 03 Nov 2020 08:02:22 -0800 (PST) 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 v8 0/4] Introduce TEE based Trusted Keys support Date: Tue, 3 Nov 2020 21:31:42 +0530 Message-Id: <1604419306-26105-1-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 v8: 1. Added static calls support instead of indirect calls. 2. Documented trusted keys source module parameter. 3. Refined patch #1 commit message discription. 4. Addressed misc. comments on patch #2. 5. Added myself as Trusted Keys co-maintainer instead. 6. Rebased to latest tpmdd master. 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 myself as Trusted Keys co-maintainer Documentation/admin-guide/kernel-parameters.txt | 12 + Documentation/security/keys/trusted-encrypted.rst | 203 +++++++++++-- MAINTAINERS | 2 + 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 | 354 ++++++++++++++++++++++ security/keys/trusted-keys/trusted_tee.c | 278 +++++++++++++++++ security/keys/trusted-keys/trusted_tpm1.c | 336 ++++---------------- 10 files changed, 979 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