From patchwork Thu Jul 20 15:32:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13320677 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 9B92EC001DC for ; Thu, 20 Jul 2023 15:35:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232678AbjGTPfA (ORCPT ); Thu, 20 Jul 2023 11:35:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40590 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232645AbjGTPew (ORCPT ); Thu, 20 Jul 2023 11:34:52 -0400 Received: from frasgout13.his.huawei.com (ecs-14-137-139-46.compute.hwclouds-dns.com [14.137.139.46]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 703131BC1; Thu, 20 Jul 2023 08:34:50 -0700 (PDT) Received: from mail02.huawei.com (unknown [172.18.147.229]) by frasgout13.his.huawei.com (SkyGuard) with ESMTP id 4R6Gft0xYyz9xyNR; Thu, 20 Jul 2023 23:23:34 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP1 (Coremail) with SMTP id LxC2BwBHquXFU7lkGHDRBA--.21759S4; Thu, 20 Jul 2023 16:34:10 +0100 (CET) From: Roberto Sassu To: dhowells@redhat.com, dwmw2@infradead.org, herbert@gondor.apana.org.au, davem@davemloft.net, jarkko@kernel.org, zohar@linux.ibm.com, dmitry.kasatkin@gmail.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com Cc: linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-crypto@vger.kernel.org, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, pbrobinson@gmail.com, zbyszek@in.waw.pl, wiktor@metacode.biz, devel@lists.sequoia-pgp.org, gnupg-devel@gnupg.org, ebiggers@kernel.org, Jason@zx2c4.com, mail@maciej.szmigiero.name, antony@vennard.ch, konstantin@linuxfoundation.org, James.Bottomley@HansenPartnership.com, Roberto Sassu Subject: [RFC][PATCH v3 2/9] crypto: Export public key algorithm information Date: Thu, 20 Jul 2023 17:32:38 +0200 Message-Id: <20230720153247.3755856-3-roberto.sassu@huaweicloud.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230720153247.3755856-1-roberto.sassu@huaweicloud.com> References: <20230720153247.3755856-1-roberto.sassu@huaweicloud.com> MIME-Version: 1.0 X-CM-TRANSID: LxC2BwBHquXFU7lkGHDRBA--.21759S4 X-Coremail-Antispam: 1UD129KBjvJXoWxGFy7ur13WrW8Gw47uw1UGFg_yoWrGFWDpr s09a1rX3y8ZFy7KryS9FyFyryft3yF9r15tanrXw1fAFn7tw18Jrs2vrZrCF1kXFsrJ3yr ua97ZF9rGw18GaDanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUB2b4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUXw A2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVWUJVWUCwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV WxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVW8JVWxJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_ Gr1j6F4UJwAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ew Av7VC0I7IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY 6r1j6r4UM4x0Y48IcxkI7VAKI48JM4IIrI8v6xkF7I0E8cxan2IY04v7MxAIw28IcxkI7V AKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCj r7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVW8ZVWrXwCIc40Y0x0EwIxGrwCI42IY6x IIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxVWxJVW8Jr1lIxAIcVCF 04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2jsIEc7 CjxVAFwI0_Gr1j6F4UJbIYCTnIWIevJa73UjIFyTuYvjxUFa9-UUUUU X-CM-SenderInfo: purev21wro2thvvxqx5xdzvxpfor3voofrz/1tbiAgAEBF1jj4y-0wAAsT X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org From: Roberto Sassu Export the public keys algorithm identifiers, so that user space can reference them when passing data to the kernel. Define and export the pub_key_algo_name array, so that kernel subsystems can get the string associated to the public key algorithm identifier. Signed-off-by: Roberto Sassu --- crypto/Kconfig | 3 +++ crypto/Makefile | 1 + crypto/pub_key_info.c | 20 ++++++++++++++++++++ include/crypto/pub_key_info.h | 15 +++++++++++++++ include/uapi/linux/pub_key_info.h | 22 ++++++++++++++++++++++ 5 files changed, 61 insertions(+) create mode 100644 crypto/pub_key_info.c create mode 100644 include/crypto/pub_key_info.h create mode 100644 include/uapi/linux/pub_key_info.h diff --git a/crypto/Kconfig b/crypto/Kconfig index 650b1b3620d..2558025461b 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -1420,6 +1420,9 @@ endmenu config CRYPTO_HASH_INFO bool +config CRYPTO_PUB_KEY_INFO + bool + if !KMSAN # avoid false positives from assembly if ARM source "arch/arm/crypto/Kconfig" diff --git a/crypto/Makefile b/crypto/Makefile index 953a7e105e5..fcdb5918e58 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -206,6 +206,7 @@ obj-$(CONFIG_XOR_BLOCKS) += xor.o obj-$(CONFIG_ASYNC_CORE) += async_tx/ obj-$(CONFIG_ASYMMETRIC_KEY_TYPE) += asymmetric_keys/ obj-$(CONFIG_CRYPTO_HASH_INFO) += hash_info.o +obj-$(CONFIG_CRYPTO_PUB_KEY_INFO) += pub_key_info.o crypto_simd-y := simd.o obj-$(CONFIG_CRYPTO_SIMD) += crypto_simd.o diff --git a/crypto/pub_key_info.c b/crypto/pub_key_info.c new file mode 100644 index 00000000000..d12a08e5972 --- /dev/null +++ b/crypto/pub_key_info.c @@ -0,0 +1,20 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2023 Huawei Technologies Duesseldorf GmbH + * + * Public key info: Public key algorithms information + */ + +#include +#include + +const char *const pub_key_algo_name[PKEY_ALGO__LAST] = { + [PKEY_ALGO_RSA] = "rsa", + [PKEY_ALGO_ECDSA] = "ecdsa", + [PKEY_ALGO_ECDSA_P192] = "ecdsa-nist-p192", + [PKEY_ALGO_ECDSA_P256] = "ecdsa-nist-p256", + [PKEY_ALGO_ECDSA_P384] = "ecdsa-nist-p384", + [PKEY_ALGO_ECRDSA] = "ecrdsa", + [PKEY_ALGO_SM2] = "sm2", +}; +EXPORT_SYMBOL_GPL(pub_key_algo_name); diff --git a/include/crypto/pub_key_info.h b/include/crypto/pub_key_info.h new file mode 100644 index 00000000000..ea411792778 --- /dev/null +++ b/include/crypto/pub_key_info.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Copyright (C) 2023 Huawei Technologies Duesseldorf GmbH + * + * Public key info: Public key algorithms information + */ + +#ifndef _CRYPTO_PUB_KEY_INFO_H +#define _CRYPTO_PUB_KEY_INFO_H + +#include + +extern const char *const pub_key_algo_name[PKEY_ALGO__LAST]; + +#endif /* _CRYPTO_PUB_KEY_INFO_H */ diff --git a/include/uapi/linux/pub_key_info.h b/include/uapi/linux/pub_key_info.h new file mode 100644 index 00000000000..a5595969156 --- /dev/null +++ b/include/uapi/linux/pub_key_info.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Copyright (C) 2023 Huawei Technologies Duesseldorf GmbH + * + * Public key info: Public key algorithms information + */ + +#ifndef _UAPI_LINUX_PUB_KEY_INFO_H +#define _UAPI_LINUX_PUB_KEY_INFO_H + +enum pub_key_algo { + PKEY_ALGO_RSA, + PKEY_ALGO_ECDSA, + PKEY_ALGO_ECDSA_P192, + PKEY_ALGO_ECDSA_P256, + PKEY_ALGO_ECDSA_P384, + PKEY_ALGO_ECRDSA, + PKEY_ALGO_SM2, + PKEY_ALGO__LAST, +}; + +#endif /* _UAPI_LINUX_PUB_KEY_INFO_H */