From patchwork Fri Jun 26 08:04:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 11626801 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4C9C392A for ; Fri, 26 Jun 2020 08:04:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3F1612080C for ; Fri, 26 Jun 2020 08:04:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728890AbgFZIEu (ORCPT ); Fri, 26 Jun 2020 04:04:50 -0400 Received: from mga09.intel.com ([134.134.136.24]:37504 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728687AbgFZIEt (ORCPT ); Fri, 26 Jun 2020 04:04:49 -0400 IronPort-SDR: o6HcqAwVX9JmOlBrI5/sd2ED27DeQKEOiL/H6TT7wckVTRCDkLt2clWgDQel8YDakgIDfxx/tp zCEcZBKmr+tg== X-IronPort-AV: E=McAfee;i="6000,8403,9663"; a="146739884" X-IronPort-AV: E=Sophos;i="5.75,282,1589266800"; d="scan'208";a="146739884" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jun 2020 01:04:49 -0700 IronPort-SDR: K9pgsiD/3jCz0ddYpArU7+++h/4l89gURPySbXmnIa8/TOu9oH4YIXLt0cJg4O38fZGaarZcJg byJaH7yBybEQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,282,1589266800"; d="scan'208";a="479756334" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.51]) by fmsmga006.fm.intel.com with ESMTP; 26 Jun 2020 01:04:48 -0700 From: Giovanni Cabiddu To: herbert@gondor.apana.org.au Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, Giovanni Cabiddu Subject: [PATCH v2 1/4] crypto: qat - allow xts requests not multiple of block Date: Fri, 26 Jun 2020 09:04:26 +0100 Message-Id: <20200626080429.155450-2-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200626080429.155450-1-giovanni.cabiddu@intel.com> References: <20200626080429.155450-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Allow aes xts requests that are not multiple of the block size. If a request is smaller than the block size, return -EINVAL. This fixes the following issue reported by the crypto testmgr self-test: alg: skcipher: qat_aes_xts encryption failed on test vector "random: len=116 klen=64"; expected_error=0, actual_error=-22, cfg="random: inplace may_sleep use_finup src_divs=[45.85%@+4077, 54.15%@alignmask+18]" Fixes: 96ee111a659e ("crypto: qat - return error for block...") Signed-off-by: Giovanni Cabiddu --- drivers/crypto/qat/qat_common/qat_algs.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/qat/qat_common/qat_algs.c b/drivers/crypto/qat/qat_common/qat_algs.c index 833d1a75666f..6bea6f868395 100644 --- a/drivers/crypto/qat/qat_common/qat_algs.c +++ b/drivers/crypto/qat/qat_common/qat_algs.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include "adf_accel_devices.h" #include "adf_transport.h" @@ -1058,6 +1059,14 @@ static int qat_alg_skcipher_blk_encrypt(struct skcipher_request *req) return qat_alg_skcipher_encrypt(req); } +static int qat_alg_skcipher_xts_encrypt(struct skcipher_request *req) +{ + if (req->cryptlen < XTS_BLOCK_SIZE) + return -EINVAL; + + return qat_alg_skcipher_encrypt(req); +} + static int qat_alg_skcipher_decrypt(struct skcipher_request *req) { struct crypto_skcipher *stfm = crypto_skcipher_reqtfm(req); @@ -1117,6 +1126,15 @@ static int qat_alg_skcipher_blk_decrypt(struct skcipher_request *req) return qat_alg_skcipher_decrypt(req); } + +static int qat_alg_skcipher_xts_decrypt(struct skcipher_request *req) +{ + if (req->cryptlen < XTS_BLOCK_SIZE) + return -EINVAL; + + return qat_alg_skcipher_decrypt(req); +} + static int qat_alg_aead_init(struct crypto_aead *tfm, enum icp_qat_hw_auth_algo hash, const char *hash_name) @@ -1310,8 +1328,8 @@ static struct skcipher_alg qat_skciphers[] = { { .init = qat_alg_skcipher_init_tfm, .exit = qat_alg_skcipher_exit_tfm, .setkey = qat_alg_skcipher_xts_setkey, - .decrypt = qat_alg_skcipher_blk_decrypt, - .encrypt = qat_alg_skcipher_blk_encrypt, + .decrypt = qat_alg_skcipher_xts_decrypt, + .encrypt = qat_alg_skcipher_xts_encrypt, .min_keysize = 2 * AES_MIN_KEY_SIZE, .max_keysize = 2 * AES_MAX_KEY_SIZE, .ivsize = AES_BLOCK_SIZE,