From patchwork Sat Nov 9 17:09:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ard Biesheuvel X-Patchwork-Id: 11236063 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 5CAA514E5 for ; Sat, 9 Nov 2019 17:17:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 373472075C for ; Sat, 9 Nov 2019 17:17:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="MgiODJJz"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="2tcK9GQf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 373472075C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=9WOuQaTCpUzmXdOs+7Wv/g6jxpSRBAPCkx3JRhC4jbw=; b=MgiODJJzxrAxE9HTM1pZFF88KQ xq3hBoEoAymVynRuW4wxw/241QcJAXItA/g4AKTI3XL7QPqubFaKeVXHViQmSvLJJ/+YjbdmRSf/Y o98AaPfcrD/13GXMv/A5BooVnUh3ISzPQxsBsth+2Q4GtQdev9x7F4rNiFv5rdks4fwxnemeGJj/d WbeG74fHXu9bDEPb7bgjGbzVg00VIbFFyCex7GT1twsgV3fN2Ms7HXfbJARVRXBDrVfx3SgaKjlGp P4Fe80Z9rXPUO3+AHdEpGHmiiJr+HLfv9OuU6pz70QqCFP3GH5QKqYgAtNrezG/z4vBNX/nTSuGEq nV5fIcqQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iTUMK-0002Ec-Kp; Sat, 09 Nov 2019 17:17:12 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iTUGe-0004sz-OX for linux-arm-kernel@lists.infradead.org; Sat, 09 Nov 2019 17:11:28 +0000 Received: from e123331-lin.home (lfbn-mar-1-643-104.w90-118.abo.wanadoo.fr [90.118.215.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D773A21924; Sat, 9 Nov 2019 17:11:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573319480; bh=28IojrmNU5T1fANps+LKazFbl7zaM+VgYOeEGhmGymA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2tcK9GQf+GtNsyEDxEUNCCStCBYkT45tSU7eGHxSUHuuE1SYhgUktqRYMetx4emTa PyTE7ehyDs52HLkwqAVN3a6z7N9z+UD89MP3DjCZade44PFZLbcPw/CQ077SknjQKD 8QsAB369ke+nKIftgaLBUabKUE7AEwqduOKOBs9s= From: Ard Biesheuvel To: linux-crypto@vger.kernel.org Subject: [PATCH v4 18/29] crypto: sahara - switch to skcipher API Date: Sat, 9 Nov 2019 18:09:43 +0100 Message-Id: <20191109170954.756-19-ardb@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191109170954.756-1-ardb@kernel.org> References: <20191109170954.756-1-ardb@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191109_091121_131325_A7034068 X-CRM114-Status: GOOD ( 16.72 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "David S. Miller" , Eric Biggers , Ard Biesheuvel , linux-arm-kernel@lists.infradead.org, Herbert Xu MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Commit 7a7ffe65c8c5 ("crypto: skcipher - Add top-level skcipher interface") dated 20 august 2015 introduced the new skcipher API which is supposed to replace both blkcipher and ablkcipher. While all consumers of the API have been converted long ago, some producers of the ablkcipher remain, forcing us to keep the ablkcipher support routines alive, along with the matching code to expose [a]blkciphers via the skcipher API. So switch this driver to the skcipher API, allowing us to finally drop the ablkcipher code in the near future. Signed-off-by: Ard Biesheuvel --- drivers/crypto/sahara.c | 156 ++++++++++---------- 1 file changed, 75 insertions(+), 81 deletions(-) diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c index 8ac8ec6decd5..d4ea2f11ca68 100644 --- a/drivers/crypto/sahara.c +++ b/drivers/crypto/sahara.c @@ -547,7 +547,7 @@ static int sahara_hw_descriptor_create(struct sahara_dev *dev) return -EINVAL; } -static int sahara_aes_process(struct ablkcipher_request *req) +static int sahara_aes_process(struct skcipher_request *req) { struct sahara_dev *dev = dev_ptr; struct sahara_ctx *ctx; @@ -558,20 +558,20 @@ static int sahara_aes_process(struct ablkcipher_request *req) /* Request is ready to be dispatched by the device */ dev_dbg(dev->device, "dispatch request (nbytes=%d, src=%p, dst=%p)\n", - req->nbytes, req->src, req->dst); + req->cryptlen, req->src, req->dst); /* assign new request to device */ - dev->total = req->nbytes; + dev->total = req->cryptlen; dev->in_sg = req->src; dev->out_sg = req->dst; - rctx = ablkcipher_request_ctx(req); - ctx = crypto_ablkcipher_ctx(crypto_ablkcipher_reqtfm(req)); + rctx = skcipher_request_ctx(req); + ctx = crypto_skcipher_ctx(crypto_skcipher_reqtfm(req)); rctx->mode &= FLAGS_MODE_MASK; dev->flags = (dev->flags & ~FLAGS_MODE_MASK) | rctx->mode; - if ((dev->flags & FLAGS_CBC) && req->info) - memcpy(dev->iv_base, req->info, AES_KEYSIZE_128); + if ((dev->flags & FLAGS_CBC) && req->iv) + memcpy(dev->iv_base, req->iv, AES_KEYSIZE_128); /* assign new context to device */ dev->ctx = ctx; @@ -597,10 +597,10 @@ static int sahara_aes_process(struct ablkcipher_request *req) return 0; } -static int sahara_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, +static int sahara_aes_setkey(struct crypto_skcipher *tfm, const u8 *key, unsigned int keylen) { - struct sahara_ctx *ctx = crypto_ablkcipher_ctx(tfm); + struct sahara_ctx *ctx = crypto_skcipher_ctx(tfm); int ret; ctx->keylen = keylen; @@ -630,16 +630,16 @@ static int sahara_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, return ret; } -static int sahara_aes_crypt(struct ablkcipher_request *req, unsigned long mode) +static int sahara_aes_crypt(struct skcipher_request *req, unsigned long mode) { - struct sahara_aes_reqctx *rctx = ablkcipher_request_ctx(req); + struct sahara_aes_reqctx *rctx = skcipher_request_ctx(req); struct sahara_dev *dev = dev_ptr; int err = 0; dev_dbg(dev->device, "nbytes: %d, enc: %d, cbc: %d\n", - req->nbytes, !!(mode & FLAGS_ENCRYPT), !!(mode & FLAGS_CBC)); + req->cryptlen, !!(mode & FLAGS_ENCRYPT), !!(mode & FLAGS_CBC)); - if (!IS_ALIGNED(req->nbytes, AES_BLOCK_SIZE)) { + if (!IS_ALIGNED(req->cryptlen, AES_BLOCK_SIZE)) { dev_err(dev->device, "request size is not exact amount of AES blocks\n"); return -EINVAL; @@ -648,7 +648,7 @@ static int sahara_aes_crypt(struct ablkcipher_request *req, unsigned long mode) rctx->mode = mode; mutex_lock(&dev->queue_mutex); - err = ablkcipher_enqueue_request(&dev->queue, req); + err = crypto_enqueue_request(&dev->queue, &req->base); mutex_unlock(&dev->queue_mutex); wake_up_process(dev->kthread); @@ -656,10 +656,10 @@ static int sahara_aes_crypt(struct ablkcipher_request *req, unsigned long mode) return err; } -static int sahara_aes_ecb_encrypt(struct ablkcipher_request *req) +static int sahara_aes_ecb_encrypt(struct skcipher_request *req) { - struct sahara_ctx *ctx = crypto_ablkcipher_ctx( - crypto_ablkcipher_reqtfm(req)); + struct sahara_ctx *ctx = crypto_skcipher_ctx( + crypto_skcipher_reqtfm(req)); int err; if (unlikely(ctx->keylen != AES_KEYSIZE_128)) { @@ -669,7 +669,7 @@ static int sahara_aes_ecb_encrypt(struct ablkcipher_request *req) skcipher_request_set_callback(subreq, req->base.flags, NULL, NULL); skcipher_request_set_crypt(subreq, req->src, req->dst, - req->nbytes, req->info); + req->cryptlen, req->iv); err = crypto_skcipher_encrypt(subreq); skcipher_request_zero(subreq); return err; @@ -678,10 +678,10 @@ static int sahara_aes_ecb_encrypt(struct ablkcipher_request *req) return sahara_aes_crypt(req, FLAGS_ENCRYPT); } -static int sahara_aes_ecb_decrypt(struct ablkcipher_request *req) +static int sahara_aes_ecb_decrypt(struct skcipher_request *req) { - struct sahara_ctx *ctx = crypto_ablkcipher_ctx( - crypto_ablkcipher_reqtfm(req)); + struct sahara_ctx *ctx = crypto_skcipher_ctx( + crypto_skcipher_reqtfm(req)); int err; if (unlikely(ctx->keylen != AES_KEYSIZE_128)) { @@ -691,7 +691,7 @@ static int sahara_aes_ecb_decrypt(struct ablkcipher_request *req) skcipher_request_set_callback(subreq, req->base.flags, NULL, NULL); skcipher_request_set_crypt(subreq, req->src, req->dst, - req->nbytes, req->info); + req->cryptlen, req->iv); err = crypto_skcipher_decrypt(subreq); skcipher_request_zero(subreq); return err; @@ -700,10 +700,10 @@ static int sahara_aes_ecb_decrypt(struct ablkcipher_request *req) return sahara_aes_crypt(req, 0); } -static int sahara_aes_cbc_encrypt(struct ablkcipher_request *req) +static int sahara_aes_cbc_encrypt(struct skcipher_request *req) { - struct sahara_ctx *ctx = crypto_ablkcipher_ctx( - crypto_ablkcipher_reqtfm(req)); + struct sahara_ctx *ctx = crypto_skcipher_ctx( + crypto_skcipher_reqtfm(req)); int err; if (unlikely(ctx->keylen != AES_KEYSIZE_128)) { @@ -713,7 +713,7 @@ static int sahara_aes_cbc_encrypt(struct ablkcipher_request *req) skcipher_request_set_callback(subreq, req->base.flags, NULL, NULL); skcipher_request_set_crypt(subreq, req->src, req->dst, - req->nbytes, req->info); + req->cryptlen, req->iv); err = crypto_skcipher_encrypt(subreq); skcipher_request_zero(subreq); return err; @@ -722,10 +722,10 @@ static int sahara_aes_cbc_encrypt(struct ablkcipher_request *req) return sahara_aes_crypt(req, FLAGS_ENCRYPT | FLAGS_CBC); } -static int sahara_aes_cbc_decrypt(struct ablkcipher_request *req) +static int sahara_aes_cbc_decrypt(struct skcipher_request *req) { - struct sahara_ctx *ctx = crypto_ablkcipher_ctx( - crypto_ablkcipher_reqtfm(req)); + struct sahara_ctx *ctx = crypto_skcipher_ctx( + crypto_skcipher_reqtfm(req)); int err; if (unlikely(ctx->keylen != AES_KEYSIZE_128)) { @@ -735,7 +735,7 @@ static int sahara_aes_cbc_decrypt(struct ablkcipher_request *req) skcipher_request_set_callback(subreq, req->base.flags, NULL, NULL); skcipher_request_set_crypt(subreq, req->src, req->dst, - req->nbytes, req->info); + req->cryptlen, req->iv); err = crypto_skcipher_decrypt(subreq); skcipher_request_zero(subreq); return err; @@ -744,10 +744,10 @@ static int sahara_aes_cbc_decrypt(struct ablkcipher_request *req) return sahara_aes_crypt(req, FLAGS_CBC); } -static int sahara_aes_cra_init(struct crypto_tfm *tfm) +static int sahara_aes_init_tfm(struct crypto_skcipher *tfm) { - const char *name = crypto_tfm_alg_name(tfm); - struct sahara_ctx *ctx = crypto_tfm_ctx(tfm); + const char *name = crypto_tfm_alg_name(&tfm->base); + struct sahara_ctx *ctx = crypto_skcipher_ctx(tfm); ctx->fallback = crypto_alloc_sync_skcipher(name, 0, CRYPTO_ALG_NEED_FALLBACK); @@ -756,14 +756,14 @@ static int sahara_aes_cra_init(struct crypto_tfm *tfm) return PTR_ERR(ctx->fallback); } - tfm->crt_ablkcipher.reqsize = sizeof(struct sahara_aes_reqctx); + crypto_skcipher_set_reqsize(tfm, sizeof(struct sahara_aes_reqctx)); return 0; } -static void sahara_aes_cra_exit(struct crypto_tfm *tfm) +static void sahara_aes_exit_tfm(struct crypto_skcipher *tfm) { - struct sahara_ctx *ctx = crypto_tfm_ctx(tfm); + struct sahara_ctx *ctx = crypto_skcipher_ctx(tfm); crypto_free_sync_skcipher(ctx->fallback); } @@ -1071,8 +1071,8 @@ static int sahara_queue_manage(void *data) ret = sahara_sha_process(req); } else { - struct ablkcipher_request *req = - ablkcipher_request_cast(async_req); + struct skcipher_request *req = + skcipher_request_cast(async_req); ret = sahara_aes_process(req); } @@ -1189,48 +1189,42 @@ static int sahara_sha_cra_init(struct crypto_tfm *tfm) return 0; } -static struct crypto_alg aes_algs[] = { +static struct skcipher_alg aes_algs[] = { { - .cra_name = "ecb(aes)", - .cra_driver_name = "sahara-ecb-aes", - .cra_priority = 300, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | - CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, - .cra_blocksize = AES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct sahara_ctx), - .cra_alignmask = 0x0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = sahara_aes_cra_init, - .cra_exit = sahara_aes_cra_exit, - .cra_u.ablkcipher = { - .min_keysize = AES_MIN_KEY_SIZE , - .max_keysize = AES_MAX_KEY_SIZE, - .setkey = sahara_aes_setkey, - .encrypt = sahara_aes_ecb_encrypt, - .decrypt = sahara_aes_ecb_decrypt, - } + .base.cra_name = "ecb(aes)", + .base.cra_driver_name = "sahara-ecb-aes", + .base.cra_priority = 300, + .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = AES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct sahara_ctx), + .base.cra_alignmask = 0x0, + .base.cra_module = THIS_MODULE, + + .init = sahara_aes_init_tfm, + .exit = sahara_aes_exit_tfm, + .min_keysize = AES_MIN_KEY_SIZE , + .max_keysize = AES_MAX_KEY_SIZE, + .setkey = sahara_aes_setkey, + .encrypt = sahara_aes_ecb_encrypt, + .decrypt = sahara_aes_ecb_decrypt, }, { - .cra_name = "cbc(aes)", - .cra_driver_name = "sahara-cbc-aes", - .cra_priority = 300, - .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | - CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, - .cra_blocksize = AES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct sahara_ctx), - .cra_alignmask = 0x0, - .cra_type = &crypto_ablkcipher_type, - .cra_module = THIS_MODULE, - .cra_init = sahara_aes_cra_init, - .cra_exit = sahara_aes_cra_exit, - .cra_u.ablkcipher = { - .min_keysize = AES_MIN_KEY_SIZE , - .max_keysize = AES_MAX_KEY_SIZE, - .ivsize = AES_BLOCK_SIZE, - .setkey = sahara_aes_setkey, - .encrypt = sahara_aes_cbc_encrypt, - .decrypt = sahara_aes_cbc_decrypt, - } + .base.cra_name = "cbc(aes)", + .base.cra_driver_name = "sahara-cbc-aes", + .base.cra_priority = 300, + .base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK, + .base.cra_blocksize = AES_BLOCK_SIZE, + .base.cra_ctxsize = sizeof(struct sahara_ctx), + .base.cra_alignmask = 0x0, + .base.cra_module = THIS_MODULE, + + .init = sahara_aes_init_tfm, + .exit = sahara_aes_exit_tfm, + .min_keysize = AES_MIN_KEY_SIZE , + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + .setkey = sahara_aes_setkey, + .encrypt = sahara_aes_cbc_encrypt, + .decrypt = sahara_aes_cbc_decrypt, } }; @@ -1318,7 +1312,7 @@ static int sahara_register_algs(struct sahara_dev *dev) unsigned int i, j, k, l; for (i = 0; i < ARRAY_SIZE(aes_algs); i++) { - err = crypto_register_alg(&aes_algs[i]); + err = crypto_register_skcipher(&aes_algs[i]); if (err) goto err_aes_algs; } @@ -1348,7 +1342,7 @@ static int sahara_register_algs(struct sahara_dev *dev) err_aes_algs: for (j = 0; j < i; j++) - crypto_unregister_alg(&aes_algs[j]); + crypto_unregister_skcipher(&aes_algs[j]); return err; } @@ -1358,7 +1352,7 @@ static void sahara_unregister_algs(struct sahara_dev *dev) unsigned int i; for (i = 0; i < ARRAY_SIZE(aes_algs); i++) - crypto_unregister_alg(&aes_algs[i]); + crypto_unregister_skcipher(&aes_algs[i]); for (i = 0; i < ARRAY_SIZE(sha_v3_algs); i++) crypto_unregister_ahash(&sha_v3_algs[i]);