From patchwork Thu Jul 6 14:42:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roberto Sassu X-Patchwork-Id: 13303807 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 A37F5C0015E for ; Thu, 6 Jul 2023 14:45:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233329AbjGFOpo (ORCPT ); Thu, 6 Jul 2023 10:45:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34826 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233351AbjGFOph (ORCPT ); Thu, 6 Jul 2023 10:45:37 -0400 Received: from frasgout13.his.huawei.com (unknown [14.137.139.46]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EE1CB1FEB; Thu, 6 Jul 2023 07:45:27 -0700 (PDT) Received: from mail02.huawei.com (unknown [172.18.147.229]) by frasgout13.his.huawei.com (SkyGuard) with ESMTP id 4QxfDh6JwQz9v7Gk; Thu, 6 Jul 2023 22:34:28 +0800 (CST) Received: from huaweicloud.com (unknown [10.204.63.22]) by APP1 (Coremail) with SMTP id LxC2BwAHQg0y06ZkPxkwBA--.58122S3; Thu, 06 Jul 2023 15:44:44 +0100 (CET) From: Roberto Sassu To: dhowells@redhat.com, dwmw2@infradead.org, herbert@gondor.apana.org.au, davem@davemloft.net, jarkko@kernel.org, song@kernel.org, jolsa@kernel.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, martin.lau@linux.dev, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, sdf@google.com, haoluo@google.com, rostedt@goodmis.org, mhiramat@kernel.org, mykolal@fb.com, shuah@kernel.org Cc: linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-crypto@vger.kernel.org, bpf@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, pbrobinson@gmail.com, zbyszek@in.waw.pl, zohar@linux.ibm.com, linux-integrity@vger.kernel.org, paul@paul-moore.com, linux-security-module@vger.kernel.org, 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 01/10] crypto: Export public key algorithm information Date: Thu, 6 Jul 2023 16:42:14 +0200 Message-Id: <20230706144225.1046544-2-roberto.sassu@huaweicloud.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230706144225.1046544-1-roberto.sassu@huaweicloud.com> References: <20230706144225.1046544-1-roberto.sassu@huaweicloud.com> MIME-Version: 1.0 X-CM-TRANSID: LxC2BwAHQg0y06ZkPxkwBA--.58122S3 X-Coremail-Antispam: 1UD129KBjvJXoWxGFy7ur13WrW8Gw47uw1UGFg_yoWrGFWDpr s09a1rX3y8ZFy7KryS9FyFyryft3yF9r15tanrXw1fAFn7tw18Jrs2vrZrCF1kXFsrJ3yr ua97ZF9rGw18GaDanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPqb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUGw A2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVWUJVWUCwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV WxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6r4UJVWxJr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2 WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkE bVWUJVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628vn2kIc2xKxwCY1x0262kKe7 AKxVW8ZVWrXwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02 F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Wrv_Gr 1UMIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF 7I0E14v26F4j6r4UJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI 0_Gr0_Cr1lIxAIcVC2z280aVCY1x0267AKxVW8Jr0_Cr1UYxBIdaVFxhVjvjDU0xZFpf9x 07jxtxhUUUUU= X-CM-SenderInfo: purev21wro2thvvxqx5xdzvxpfor3voofrz/1tbiAgAKBF1jj4vZ6gAAsF 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 */