From patchwork Thu Sep 28 07:25:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Chang S. Bae" X-Patchwork-Id: 13402215 X-Patchwork-Delegate: herbert@gondor.apana.org.au 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 AE049CE7B0A for ; Thu, 28 Sep 2023 07:39:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230352AbjI1HjC (ORCPT ); Thu, 28 Sep 2023 03:39:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37368 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230238AbjI1HjB (ORCPT ); Thu, 28 Sep 2023 03:39:01 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F6928F; Thu, 28 Sep 2023 00:39:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695886740; x=1727422740; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=F6NgVD08pFaNhfYaWXL6vs/EBfbIYirHydA4wVPI/g0=; b=X3MrSzlFxhQY55MBD6P+jYyXpKnprHj54fwBn8hn9u4U3VCwbhev3qna loIDgZzGblzrqBHPB9Y/eUT8zci5Tj13k7883a9lZrvcy38AgV84tNSt9 ozysf7GM02Kt4DTZonM2wTS9Il2tG7wOakrrZxg2pRvJlJv5+cPuJK70g uffN8I7sA8crFSDWYQJk2yhVsyxPYzH8Uur3lMpwqW5TtfTDG2YflmTri XZ1B/bgSzwysKzQpgBZojP85NFopR4PsS299Y1mBHSWFJI6Uft0L0uplK OAJ9gKfwkeEVW5jhJdWxmB+X0J2LAWd2CHojvJywYYGm/F7oC7S4MN4uU g==; X-IronPort-AV: E=McAfee;i="6600,9927,10846"; a="367064867" X-IronPort-AV: E=Sophos;i="6.03,183,1694761200"; d="scan'208";a="367064867" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2023 00:38:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10846"; a="742990426" X-IronPort-AV: E=Sophos;i="6.03,183,1694761200"; d="scan'208";a="742990426" Received: from chang-linux-3.sc.intel.com ([172.25.66.173]) by orsmga007.jf.intel.com with ESMTP; 28 Sep 2023 00:38:58 -0700 From: "Chang S. Bae" To: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org Cc: herbert@gondor.apana.org.au, davem@davemloft.net, ebiggers@kernel.org, x86@kernel.org, chang.seok.bae@intel.com Subject: [PATCH v2 2/3] crypto: x86/aesni - Correct the data type in struct aesni_xts_ctx Date: Thu, 28 Sep 2023 00:25:07 -0700 Message-Id: <20230928072508.218368-3-chang.seok.bae@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230928072508.218368-1-chang.seok.bae@intel.com> References: <20230925151752.162449-1-chang.seok.bae@intel.com> <20230928072508.218368-1-chang.seok.bae@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Currently, every field in struct aesni_xts_ctx is defined as a byte array of the same size as struct crypto_aes_ctx. This data type is obscure and the choice lacks justification. To rectify this, update the field type in struct aesni_xts_ctx to match its actual structure. Suggested-by: Eric Biggers Link: https://lore.kernel.org/all/ZFWQ4sZEVu%2FLHq+Q@gmail.com/ Signed-off-by: Chang S. Bae Cc: linux-crypto@vger.kernel.org Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org --- arch/x86/crypto/aesni-intel_glue.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c index 308deeb0c974..80e28a01aa3a 100644 --- a/arch/x86/crypto/aesni-intel_glue.c +++ b/arch/x86/crypto/aesni-intel_glue.c @@ -61,8 +61,8 @@ struct generic_gcmaes_ctx { }; struct aesni_xts_ctx { - u8 raw_tweak_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR; - u8 raw_crypt_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR; + struct crypto_aes_ctx tweak_ctx AESNI_ALIGN_ATTR; + struct crypto_aes_ctx crypt_ctx AESNI_ALIGN_ATTR; }; #define GCM_BLOCK_LEN 16 @@ -885,13 +885,12 @@ static int xts_aesni_setkey(struct crypto_skcipher *tfm, const u8 *key, keylen /= 2; /* first half of xts-key is for crypt */ - err = aes_set_key_common(aes_ctx(ctx->raw_crypt_ctx), key, keylen); + err = aes_set_key_common(aes_ctx(&ctx->crypt_ctx), key, keylen); if (err) return err; /* second half of xts-key is for tweak */ - return aes_set_key_common(aes_ctx(ctx->raw_tweak_ctx), key + keylen, - keylen); + return aes_set_key_common(aes_ctx(&ctx->tweak_ctx), key + keylen, keylen); } static int xts_crypt(struct skcipher_request *req, bool encrypt) @@ -933,7 +932,7 @@ static int xts_crypt(struct skcipher_request *req, bool encrypt) kernel_fpu_begin(); /* calculate first value of T */ - aesni_enc(aes_ctx(ctx->raw_tweak_ctx), walk.iv, walk.iv); + aesni_enc(aes_ctx(&ctx->tweak_ctx), walk.iv, walk.iv); while (walk.nbytes > 0) { int nbytes = walk.nbytes; @@ -942,11 +941,11 @@ static int xts_crypt(struct skcipher_request *req, bool encrypt) nbytes &= ~(AES_BLOCK_SIZE - 1); if (encrypt) - aesni_xts_encrypt(aes_ctx(ctx->raw_crypt_ctx), + aesni_xts_encrypt(aes_ctx(&ctx->crypt_ctx), walk.dst.virt.addr, walk.src.virt.addr, nbytes, walk.iv); else - aesni_xts_decrypt(aes_ctx(ctx->raw_crypt_ctx), + aesni_xts_decrypt(aes_ctx(&ctx->crypt_ctx), walk.dst.virt.addr, walk.src.virt.addr, nbytes, walk.iv); kernel_fpu_end(); @@ -974,11 +973,11 @@ static int xts_crypt(struct skcipher_request *req, bool encrypt) kernel_fpu_begin(); if (encrypt) - aesni_xts_encrypt(aes_ctx(ctx->raw_crypt_ctx), + aesni_xts_encrypt(aes_ctx(&ctx->crypt_ctx), walk.dst.virt.addr, walk.src.virt.addr, walk.nbytes, walk.iv); else - aesni_xts_decrypt(aes_ctx(ctx->raw_crypt_ctx), + aesni_xts_decrypt(aes_ctx(&ctx->crypt_ctx), walk.dst.virt.addr, walk.src.virt.addr, walk.nbytes, walk.iv); kernel_fpu_end();