From patchwork Fri Jul 14 15:34:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nayna Jain X-Patchwork-Id: 13313786 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8D73C001DE for ; Fri, 14 Jul 2023 15:35:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236383AbjGNPfA (ORCPT ); Fri, 14 Jul 2023 11:35:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55602 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236357AbjGNPe6 (ORCPT ); Fri, 14 Jul 2023 11:34:58 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 76BD830F8; Fri, 14 Jul 2023 08:34:57 -0700 (PDT) Received: from pps.filterd (m0353726.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 36EFMslC019583; Fri, 14 Jul 2023 15:34:48 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding; s=pp1; bh=I58DtO1jDAs3385q9kf+6TLixmeR40qzFKVz2joocio=; b=VFDVUSV3sRbheIlipEcdse5i4QwBNu0viWOase0+OZE/EPI13j4JXoS4be/rtU5/otHu 5tKJf/Wjw9wZLlInDVSiX5K9svuehnMLuXrrTp4YaphiTg6S1zuZqnrT5aTa43AagGzx 2aDTPl60h/KAdTca8zOOOYHOq/JCO+SE4JlsF09ArhTNyX5pw2Nplvwr82cT+nQkC79L pyRNtwh1+s9LjF2sHNPcN1l1jcCy62DvY/l65l+uRmE7PmF3hwCHk5d2qnlQs7ioPrYr eXUAAgNdO2KFuITF3KTJ+zrWG2xMgYChLR5qGFlETvrWtB9dCxsI9Q1jhXREIb1FlcH9 Dg== Received: from ppma05fra.de.ibm.com (6c.4a.5195.ip4.static.sl-reverse.com [149.81.74.108]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3ru8y1r8ap-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 14 Jul 2023 15:34:47 +0000 Received: from pps.filterd (ppma05fra.de.ibm.com [127.0.0.1]) by ppma05fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 36ECkIJ4009989; Fri, 14 Jul 2023 15:34:45 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma05fra.de.ibm.com (PPS) with ESMTPS id 3rtpxb8bhy-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 14 Jul 2023 15:34:44 +0000 Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 36EFYfdS43778410 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 14 Jul 2023 15:34:41 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 556F420043; Fri, 14 Jul 2023 15:34:41 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 02FB920040; Fri, 14 Jul 2023 15:34:39 +0000 (GMT) Received: from li-4b5937cc-25c4-11b2-a85c-cea3a66903e4.ibm.com (unknown [9.61.52.39]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 14 Jul 2023 15:34:38 +0000 (GMT) From: Nayna Jain To: linux-integrity@vger.kernel.org Cc: Mimi Zohar , Jarkko Sakkinen , Eric Snowberg , Paul Moore , linuxppc-dev , linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, Nayna Jain Subject: [PATCH 0/6] Enable loading local and third party keys on PowerVM guest Date: Fri, 14 Jul 2023 11:34:29 -0400 Message-Id: <20230714153435.28155-1-nayna@linux.ibm.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: PLp-AzxDzBEvofFsHrcs_Pp1hOMLig2q X-Proofpoint-ORIG-GUID: PLp-AzxDzBEvofFsHrcs_Pp1hOMLig2q X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-07-14_06,2023-07-13_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 clxscore=1011 lowpriorityscore=0 suspectscore=0 mlxlogscore=747 phishscore=0 mlxscore=0 spamscore=0 impostorscore=0 malwarescore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2307140141 Precedence: bulk List-ID: On a secure boot enabled PowerVM guest, local and third party code signing keys are needed to verify signed applications, configuration files, and kernel modules. Loading these keys onto either the .secondary_trusted_keys or .ima keyrings requires the certificates be signed by keys on the .builtin_trusted_keys, .machine or .secondary_trusted_keys keyrings. Keys on the .builtin_trusted_keys keyring are trusted because of the chain of trust from secure boot up to and including the linux kernel. Keys on the .machine keyring that derive their trust from an entity such as a security officer, administrator, system owner, or machine owner are said to have "imputed trust." The type of certificates and the mechanism for loading them onto the .machine keyring is platform dependent. Userspace may load certificates onto the .secondary_trusted_keys or .ima keyrings. However, keys may also need to be loaded by the kernel if they are needed for verification in early boot time. On PowerVM guest, third party code signing keys are loaded from the moduledb variable in the Platform KeyStore(PKS) onto the .secondary_trusted_keys. The purpose of this patch set is to allow loading of local and third party code signing keys on PowerVM. Nayna Jain (6): integrity: PowerVM support for loading CA keys on machine keyring integrity: ignore keys failing CA restrictions on non-UEFI platform integrity: remove global variable from machine_keyring.c integrity: check whether imputed trust is enabled integrity: PowerVM machine keyring enablement. integrity: PowerVM support for loading third party code signing keys certs/system_keyring.c | 22 +++++++++++++ include/keys/system_keyring.h | 8 +++++ security/integrity/Kconfig | 3 +- security/integrity/digsig.c | 2 +- security/integrity/integrity.h | 6 ++-- .../platform_certs/keyring_handler.c | 18 +++++++++- .../platform_certs/keyring_handler.h | 10 ++++++ .../integrity/platform_certs/load_powerpc.c | 33 +++++++++++++++++++ .../platform_certs/machine_keyring.c | 21 +++++++++--- 9 files changed, 114 insertions(+), 9 deletions(-) base-commit: 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5