From patchwork Sun Jun 29 14:33:49 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jussi Kivilinna X-Patchwork-Id: 4444511 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 56A4FBEEAA for ; Sun, 29 Jun 2014 14:36:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 5DE5B20328 for ; Sun, 29 Jun 2014 14:36:48 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7EB0D20218 for ; Sun, 29 Jun 2014 14:36:46 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1X1GBV-0002KE-Ot; Sun, 29 Jun 2014 14:34:25 +0000 Received: from sinikuusama.dnainternet.net ([83.102.40.134]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1X1GBS-0002IV-HI for linux-arm-kernel@lists.infradead.org; Sun, 29 Jun 2014 14:34:23 +0000 Received: from localhost (localhost [127.0.0.1]) by sinikuusama.dnainternet.net (Postfix) with ESMTP id 58DD54084C; Sun, 29 Jun 2014 17:33:58 +0300 (EEST) X-Virus-Scanned: DNA Postiturva at dnainternet.net X-Spam-Score: -1 X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from sinikuusama.dnainternet.net ([83.102.40.134]) by localhost (sinikuusama.dnainternet.net [127.0.0.1]) (DNA Postiturva, port 10041) with ESMTP id HK4WsnJTUBhi; Sun, 29 Jun 2014 17:33:57 +0300 (EEST) Received: from kirsikkapuu.dnainternet.net (kirsikkapuu.dnainternet.net [83.102.40.214]) by sinikuusama.dnainternet.net (Postfix) with ESMTP id DDF953F8E6; Sun, 29 Jun 2014 17:33:57 +0300 (EEST) Received: from hayate.dalek.fi (213-216-240-55.bb.dnainternet.fi [213.216.240.55]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by kirsikkapuu.dnainternet.net (Postfix) with ESMTPS id 7C7E45FAA8; Sun, 29 Jun 2014 17:33:49 +0300 (EEST) Received: from fate.lan ([10.0.0.10] helo=fate) by hayate.dalek.fi with esmtp (Exim 4.80) (envelope-from ) id 1X1GAv-0004D1-2g; Sun, 29 Jun 2014 17:33:49 +0300 Received: from localhost6.localdomain6 (unknown [127.0.0.1]) by fate (Postfix) with ESMTP id 10A6E200AF2; Sun, 29 Jun 2014 17:33:49 +0300 (EEST) Subject: [PATCH 1/2] [v2] crypto: sha1/ARM: make use of common SHA-1 structures From: Jussi Kivilinna To: linux-crypto@vger.kernel.org Date: Sun, 29 Jun 2014 17:33:49 +0300 Message-ID: <20140629143349.17245.50072.stgit@localhost6.localdomain6> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140629_073422_966147_5222EEDB X-CRM114-Status: GOOD ( 15.40 ) X-Spam-Score: 0.6 (/) Cc: "David S. Miller" , Russell King , Herbert Xu , linux-arm-kernel@lists.infradead.org, Ard Biesheuvel X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Common SHA-1 structures are defined in for code sharing. This patch changes SHA-1/ARM glue code to use these structures. Acked-by: Ard Biesheuvel Signed-off-by: Jussi Kivilinna --- arch/arm/crypto/sha1_glue.c | 50 +++++++++++++++++++------------------------ 1 file changed, 22 insertions(+), 28 deletions(-) diff --git a/arch/arm/crypto/sha1_glue.c b/arch/arm/crypto/sha1_glue.c index 76cd976..c494e57 100644 --- a/arch/arm/crypto/sha1_glue.c +++ b/arch/arm/crypto/sha1_glue.c @@ -24,31 +24,25 @@ #include #include -struct SHA1_CTX { - uint32_t h0,h1,h2,h3,h4; - u64 count; - u8 data[SHA1_BLOCK_SIZE]; -}; -asmlinkage void sha1_block_data_order(struct SHA1_CTX *digest, +asmlinkage void sha1_block_data_order(u32 *digest, const unsigned char *data, unsigned int rounds); static int sha1_init(struct shash_desc *desc) { - struct SHA1_CTX *sctx = shash_desc_ctx(desc); - memset(sctx, 0, sizeof(*sctx)); - sctx->h0 = SHA1_H0; - sctx->h1 = SHA1_H1; - sctx->h2 = SHA1_H2; - sctx->h3 = SHA1_H3; - sctx->h4 = SHA1_H4; + struct sha1_state *sctx = shash_desc_ctx(desc); + + *sctx = (struct sha1_state){ + .state = { SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4 }, + }; + return 0; } -static int __sha1_update(struct SHA1_CTX *sctx, const u8 *data, - unsigned int len, unsigned int partial) +static int __sha1_update(struct sha1_state *sctx, const u8 *data, + unsigned int len, unsigned int partial) { unsigned int done = 0; @@ -56,17 +50,17 @@ static int __sha1_update(struct SHA1_CTX *sctx, const u8 *data, if (partial) { done = SHA1_BLOCK_SIZE - partial; - memcpy(sctx->data + partial, data, done); - sha1_block_data_order(sctx, sctx->data, 1); + memcpy(sctx->buffer + partial, data, done); + sha1_block_data_order(sctx->state, sctx->buffer, 1); } if (len - done >= SHA1_BLOCK_SIZE) { const unsigned int rounds = (len - done) / SHA1_BLOCK_SIZE; - sha1_block_data_order(sctx, data + done, rounds); + sha1_block_data_order(sctx->state, data + done, rounds); done += rounds * SHA1_BLOCK_SIZE; } - memcpy(sctx->data, data + done, len - done); + memcpy(sctx->buffer, data + done, len - done); return 0; } @@ -74,14 +68,14 @@ static int __sha1_update(struct SHA1_CTX *sctx, const u8 *data, static int sha1_update(struct shash_desc *desc, const u8 *data, unsigned int len) { - struct SHA1_CTX *sctx = shash_desc_ctx(desc); + struct sha1_state *sctx = shash_desc_ctx(desc); unsigned int partial = sctx->count % SHA1_BLOCK_SIZE; int res; /* Handle the fast case right here */ if (partial + len < SHA1_BLOCK_SIZE) { sctx->count += len; - memcpy(sctx->data + partial, data, len); + memcpy(sctx->buffer + partial, data, len); return 0; } res = __sha1_update(sctx, data, len, partial); @@ -92,7 +86,7 @@ static int sha1_update(struct shash_desc *desc, const u8 *data, /* Add padding and return the message digest. */ static int sha1_final(struct shash_desc *desc, u8 *out) { - struct SHA1_CTX *sctx = shash_desc_ctx(desc); + struct sha1_state *sctx = shash_desc_ctx(desc); unsigned int i, index, padlen; __be32 *dst = (__be32 *)out; __be64 bits; @@ -106,7 +100,7 @@ static int sha1_final(struct shash_desc *desc, u8 *out) /* We need to fill a whole block for __sha1_update() */ if (padlen <= 56) { sctx->count += padlen; - memcpy(sctx->data + index, padding, padlen); + memcpy(sctx->buffer + index, padding, padlen); } else { __sha1_update(sctx, padding, padlen, index); } @@ -114,7 +108,7 @@ static int sha1_final(struct shash_desc *desc, u8 *out) /* Store state in digest */ for (i = 0; i < 5; i++) - dst[i] = cpu_to_be32(((u32 *)sctx)[i]); + dst[i] = cpu_to_be32(sctx->state[i]); /* Wipe context */ memset(sctx, 0, sizeof(*sctx)); @@ -124,7 +118,7 @@ static int sha1_final(struct shash_desc *desc, u8 *out) static int sha1_export(struct shash_desc *desc, void *out) { - struct SHA1_CTX *sctx = shash_desc_ctx(desc); + struct sha1_state *sctx = shash_desc_ctx(desc); memcpy(out, sctx, sizeof(*sctx)); return 0; } @@ -132,7 +126,7 @@ static int sha1_export(struct shash_desc *desc, void *out) static int sha1_import(struct shash_desc *desc, const void *in) { - struct SHA1_CTX *sctx = shash_desc_ctx(desc); + struct sha1_state *sctx = shash_desc_ctx(desc); memcpy(sctx, in, sizeof(*sctx)); return 0; } @@ -145,8 +139,8 @@ static struct shash_alg alg = { .final = sha1_final, .export = sha1_export, .import = sha1_import, - .descsize = sizeof(struct SHA1_CTX), - .statesize = sizeof(struct SHA1_CTX), + .descsize = sizeof(struct sha1_state), + .statesize = sizeof(struct sha1_state), .base = { .cra_name = "sha1", .cra_driver_name= "sha1-asm",