From patchwork Tue Sep 14 21:14:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Snowberg X-Patchwork-Id: 12494797 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 17335C433FE for ; Tue, 14 Sep 2021 21:15:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 006E561250 for ; Tue, 14 Sep 2021 21:15:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234511AbhINVQf (ORCPT ); Tue, 14 Sep 2021 17:16:35 -0400 Received: from mx0b-00069f02.pphosted.com ([205.220.177.32]:52882 "EHLO mx0b-00069f02.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230332AbhINVQd (ORCPT ); Tue, 14 Sep 2021 17:16:33 -0400 Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 18EKxRgk007081; Tue, 14 Sep 2021 21:14:42 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-type : mime-version; s=corp-2021-07-09; bh=Qe5VXpKX0s9y9o6FNvA7liSiyZSTkEmNO2QX5ulgJBo=; b=tTO8l7jVoVBALqoEipLYDCfSsvqNplke21yn3YMKfZiDZosiAvepv6jKoCQY4gQDXzRn nTKElhq+mOD30l6y6KgE7aR3kSGytqetCC/I5LfdSbivqXy4RFM6m8fionT0b6Lp+SKH F/Ttn08/3DPjuPqIXpo/HaagfopdadXE9Dqhj+9IxF4ZpFkvoNoGfwigLu5nGpl/TfDB XESeUr7yocYNGQNa54KPU0fiiuf7YaxQxnZAZCKKJYLbKZRRuApU+xdwMu5rsQCdRqxD PrxVOcKci9+i2PSRSb4z7l1tMGdfm+MWT1E0nJRw0PkxafVbWAACsPrGniYz11zeOQW6 +Q== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-type : mime-version; s=corp-2020-01-29; bh=Qe5VXpKX0s9y9o6FNvA7liSiyZSTkEmNO2QX5ulgJBo=; b=CuUWhABZaB6yuZPtB7pqRMIBJMoUovZIiZrQzTJLYkAGmfblIsQ81UZ9JGADYedKH6fb FxA+1nVlPZ9UQWW3sKfdHCKZrRIDuuws9o0xiWLXxHvMi7GM1PPDxEruPGq7S7ktdoCQ hjvvkBh2u0E5taxI+/EBKBQAaF5zAwjljKWrF5yKmDV96oGq/xxvvdv/QJgABdz9Ty8c ItcI+mNJ7Z4Ml/4zuHVLtt21MGaGzQ2efczdVNQFrZBvV3EcLdXR4ImsqSx03uwTlNuX dZO1k8CGJ4qmS61BhFE1xfR5Gij8UEJfuTTgQlE1zE8PzxRpHH4Ry4ZQ1mK6WSYQpZQy yA== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by mx0b-00069f02.pphosted.com with ESMTP id 3b2p4f2xkm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 14 Sep 2021 21:14:41 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 18ELBAmx178895; Tue, 14 Sep 2021 21:14:40 GMT Received: from nam11-co1-obe.outbound.protection.outlook.com (mail-co1nam11lp2177.outbound.protection.outlook.com [104.47.56.177]) by userp3030.oracle.com with ESMTP id 3b0hjvqw8y-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 14 Sep 2021 21:14:40 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=jagjCNZDSwoExtMwCVDgzkqXKkRaxJGiIfmG05gsUNqrI1JdxyIryEsMyVso88btkOaHMQdiuCrbUyExtvy2/zjjSnQIVzNrbxOqnheo6JBuEu9pqX3yzxuuvm30cZe/ePzmtMc2cvTDZLOIXmbKPD/iXoh2cXUA8hIECMuyU9vsq9lPNgq4IbegBK3wFLE+F8PMFTQrrNIsV4cqMpjKLM0H3II4VipwEOmMfD4kKcPJJnrdl80C2J3O42vIhlW6SKPOpnsv+UXUlSz2ibkTuVbkHJbRwwLy2XKWgPJz5LpSjBy1aarwFkd8wwAyIjUo2Pg2YqTpHivPO5V9ZHpxZw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=Qe5VXpKX0s9y9o6FNvA7liSiyZSTkEmNO2QX5ulgJBo=; b=Vr67U9m+hCalRtrQmIuHK/g9nTpD687gWM19ZYMeWamxpX/b4cSIGKWwmPn1dDCBiEMhv61duE0CeQUdf0BCPG15gLV8zYJ9N5c+O8xC7Tcoghi/4J1DvaS4lRhD3pJq3MhT8L3+wr+wm606eZBtSLLWr2oLIDvWlBNNHV9Zd3uZx2cnnUE9ZbobyWpZKRk5XpPE52HqviXXPBCOO9BXmw0KBawoEncyBgu2O8nUv7iGXoS8AR5dAMq3GAsNkV0pWK0K2zmsJFoPWe3Mmxgrqhnzswg6kEV7LiqOs6mpvntM6Ix8p9mXkkUfsxvo39w/4FE0oASpE3qsU5xJYZ+dmQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Qe5VXpKX0s9y9o6FNvA7liSiyZSTkEmNO2QX5ulgJBo=; b=kB8K1opzWFtcVf2MtrP+wyLOYONQbmF/pdsdMOUeOjERYA2UURVm/f0aDfrxnl5CO6hP+iuLWNUzl8YJSDkxm/hD3VXj5+rGvMMenI+TvebjDVLUIavTPXmu5yvWfDYTzarURg7I9WyBVrP3jHrg+KE67oBXPVcl49aGnYDV97E= Authentication-Results: vger.kernel.org; dkim=none (message not signed) header.d=none;vger.kernel.org; dmarc=none action=none header.from=oracle.com; Received: from CH2PR10MB4150.namprd10.prod.outlook.com (2603:10b6:610:ac::13) by CH0PR10MB4908.namprd10.prod.outlook.com (2603:10b6:610:cb::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4523.14; Tue, 14 Sep 2021 21:14:38 +0000 Received: from CH2PR10MB4150.namprd10.prod.outlook.com ([fe80::340c:c4d9:1efa:5bc7]) by CH2PR10MB4150.namprd10.prod.outlook.com ([fe80::340c:c4d9:1efa:5bc7%8]) with mapi id 15.20.4500.019; Tue, 14 Sep 2021 21:14:38 +0000 From: Eric Snowberg To: keyrings@vger.kernel.org, linux-integrity@vger.kernel.org, zohar@linux.ibm.com, dhowells@redhat.com, dwmw2@infradead.org, herbert@gondor.apana.org.au, davem@davemloft.net, jarkko@kernel.org, jmorris@namei.org, serge@hallyn.com Cc: eric.snowberg@oracle.com, keescook@chromium.org, gregkh@linuxfoundation.org, torvalds@linux-foundation.org, scott.branden@broadcom.com, weiyongjun1@huawei.com, nayna@linux.ibm.com, ebiggers@google.com, ardb@kernel.org, nramas@linux.microsoft.com, lszubowi@redhat.com, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, linux-security-module@vger.kernel.org, James.Bottomley@HansenPartnership.com, pjones@redhat.com, konrad.wilk@oracle.com Subject: [PATCH v6 01/13] integrity: Introduce a Linux keyring called machine Date: Tue, 14 Sep 2021 17:14:04 -0400 Message-Id: <20210914211416.34096-2-eric.snowberg@oracle.com> X-Mailer: git-send-email 2.18.4 In-Reply-To: <20210914211416.34096-1-eric.snowberg@oracle.com> References: <20210914211416.34096-1-eric.snowberg@oracle.com> X-ClientProxiedBy: SN7PR04CA0165.namprd04.prod.outlook.com (2603:10b6:806:125::20) To CH2PR10MB4150.namprd10.prod.outlook.com (2603:10b6:610:ac::13) MIME-Version: 1.0 Received: from localhost.us.oracle.com (148.87.23.5) by SN7PR04CA0165.namprd04.prod.outlook.com (2603:10b6:806:125::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4523.14 via Frontend Transport; Tue, 14 Sep 2021 21:14:35 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: ad60cbb1-75d4-4b50-d0be-08d977c4a8b0 X-MS-TrafficTypeDiagnostic: CH0PR10MB4908: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6790; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:CH2PR10MB4150.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(366004)(396003)(376002)(39860400002)(136003)(346002)(6486002)(4326008)(6666004)(2906002)(44832011)(7416002)(36756003)(66556008)(2616005)(8936002)(66946007)(52116002)(921005)(956004)(478600001)(86362001)(38100700002)(107886003)(38350700002)(26005)(83380400001)(1076003)(8676002)(66476007)(7696005)(5660300002)(316002)(186003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: ad60cbb1-75d4-4b50-d0be-08d977c4a8b0 X-MS-Exchange-CrossTenant-AuthSource: CH2PR10MB4150.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Sep 2021 21:14:37.9032 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ctEteMhs4v94HMVV6mSmHRgbAs3RzP2Z3HTfEFTp/Rm5mTAk5a+rE89ihEiUVMBbpjbUJbIeNjU6zywsG4ssDDvamXEsuGJnq0fWiy6bGLk= X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR10MB4908 X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10107 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 adultscore=0 phishscore=0 mlxlogscore=999 suspectscore=0 spamscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109030001 definitions=main-2109140123 X-Proofpoint-GUID: AfUcMEhIt3DEIPt74CkaEwLn9ZgAAHeN X-Proofpoint-ORIG-GUID: AfUcMEhIt3DEIPt74CkaEwLn9ZgAAHeN Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org Many UEFI Linux distributions boot using shim. The UEFI shim provides what is called Machine Owner Keys (MOK). Shim uses both the UEFI Secure Boot DB and MOK keys to validate the next step in the boot chain. The MOK facility can be used to import user generated keys. These keys can be used to sign an end-users development kernel build. When Linux boots, both UEFI Secure Boot DB and MOK keys get loaded in the Linux .platform keyring. Define a new Linux keyring called machine. This keyring shall contain just MOK CA keys and not the remaining keys in the platform keyring. This new machine keyring will be used in follow on patches. Unlike keys in the platform keyring, keys contained in the machine keyring will be trusted within the kernel if the end-user has chosen to do so. Signed-off-by: Eric Snowberg --- v1: Initial version v2: Removed destory keyring code v3: Unmodified from v2 v4: Add Kconfig, merged in "integrity: add add_to_mok_keyring" v5: Rename to machine keyring v6: Depend on EFI in kconfig (suggested by Mimi) Test to see if ".platform" keyring is configured in add_to_machine_keyring (suggested by Mimi) --- security/integrity/Kconfig | 12 ++++++ security/integrity/Makefile | 1 + security/integrity/digsig.c | 1 + security/integrity/integrity.h | 12 +++++- .../platform_certs/machine_keyring.c | 42 +++++++++++++++++++ 5 files changed, 67 insertions(+), 1 deletion(-) create mode 100644 security/integrity/platform_certs/machine_keyring.c diff --git a/security/integrity/Kconfig b/security/integrity/Kconfig index 71f0177e8716..5e9b3de46900 100644 --- a/security/integrity/Kconfig +++ b/security/integrity/Kconfig @@ -62,6 +62,18 @@ config INTEGRITY_PLATFORM_KEYRING provided by the platform for verifying the kexec'ed kerned image and, possibly, the initramfs signature. +config INTEGRITY_MACHINE_KEYRING + bool "Provide a keyring to which CA Machine Owner Keys may be added" + depends on SECONDARY_TRUSTED_KEYRING + depends on INTEGRITY_ASYMMETRIC_KEYS + depends on SYSTEM_BLACKLIST_KEYRING + depends on EFI + help + If set, provide a keyring to which CA Machine Owner Keys (MOK) may + be added. This keyring shall contain just CA MOK keys. Unlike keys + in the platform keyring, keys contained in the .machine keyring will + be trusted within the kernel. + config LOAD_UEFI_KEYS depends on INTEGRITY_PLATFORM_KEYRING depends on EFI diff --git a/security/integrity/Makefile b/security/integrity/Makefile index 7ee39d66cf16..d0ffe37dc1d6 100644 --- a/security/integrity/Makefile +++ b/security/integrity/Makefile @@ -10,6 +10,7 @@ integrity-$(CONFIG_INTEGRITY_AUDIT) += integrity_audit.o integrity-$(CONFIG_INTEGRITY_SIGNATURE) += digsig.o integrity-$(CONFIG_INTEGRITY_ASYMMETRIC_KEYS) += digsig_asymmetric.o integrity-$(CONFIG_INTEGRITY_PLATFORM_KEYRING) += platform_certs/platform_keyring.o +integrity-$(CONFIG_INTEGRITY_MACHINE_KEYRING) += platform_certs/machine_keyring.o integrity-$(CONFIG_LOAD_UEFI_KEYS) += platform_certs/efi_parser.o \ platform_certs/load_uefi.o \ platform_certs/keyring_handler.o diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c index 3b06a01bd0fd..8c315be8ad99 100644 --- a/security/integrity/digsig.c +++ b/security/integrity/digsig.c @@ -30,6 +30,7 @@ static const char * const keyring_name[INTEGRITY_KEYRING_MAX] = { ".ima", #endif ".platform", + ".machine", }; #ifdef CONFIG_IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h index 547425c20e11..730771eececd 100644 --- a/security/integrity/integrity.h +++ b/security/integrity/integrity.h @@ -151,7 +151,8 @@ int integrity_kernel_read(struct file *file, loff_t offset, #define INTEGRITY_KEYRING_EVM 0 #define INTEGRITY_KEYRING_IMA 1 #define INTEGRITY_KEYRING_PLATFORM 2 -#define INTEGRITY_KEYRING_MAX 3 +#define INTEGRITY_KEYRING_MACHINE 3 +#define INTEGRITY_KEYRING_MAX 4 extern struct dentry *integrity_dir; @@ -283,3 +284,12 @@ static inline void __init add_to_platform_keyring(const char *source, { } #endif + +#ifdef CONFIG_INTEGRITY_MACHINE_KEYRING +void __init add_to_machine_keyring(const char *source, const void *data, size_t len); +#else +static inline void __init add_to_machine_keyring(const char *source, + const void *data, size_t len) +{ +} +#endif diff --git a/security/integrity/platform_certs/machine_keyring.c b/security/integrity/platform_certs/machine_keyring.c new file mode 100644 index 000000000000..ea2ac2f9f2b5 --- /dev/null +++ b/security/integrity/platform_certs/machine_keyring.c @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Machine keyring routines. + * + * Copyright (c) 2021, Oracle and/or its affiliates. + */ + +#include "../integrity.h" + +static __init int machine_keyring_init(void) +{ + int rc; + + rc = integrity_init_keyring(INTEGRITY_KEYRING_MACHINE); + if (rc) + return rc; + + pr_notice("Machine keyring initialized\n"); + return 0; +} +device_initcall(machine_keyring_init); + +void __init add_to_machine_keyring(const char *source, const void *data, size_t len) +{ + key_perm_t perm; + int rc; + + perm = (KEY_POS_ALL & ~KEY_POS_SETATTR) | KEY_USR_VIEW; + rc = integrity_load_cert(INTEGRITY_KEYRING_MACHINE, source, data, len, perm); + + /* + * Some MOKList keys may not pass the machine keyring restrictions. + * If the restriction check does not pass and the platform keyring + * is configured, try to add it into that keyring instead. + */ + if (rc && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING)) + rc = integrity_load_cert(INTEGRITY_KEYRING_PLATFORM, source, + data, len, perm); + + if (rc) + pr_info("Error adding keys to machine keyring %s\n", source); +}