diff options
| author | SrujanaChalla <schalla@marvell.com> | 2020-03-13 17:17:05 +0530 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-03-20 14:36:51 +1100 |
| commit | 655ff1a1a727f9b83df317c4ad3b2f4a48f6206c (patch) | |
| tree | 72fefb2a5c3f701ae659fbac146d5423c4d861a2 /drivers/crypto/marvell/cipher.c | |
| parent | crypto: arm/neon - memzero_explicit aes-cbc key (diff) | |
| download | linux-655ff1a1a727f9b83df317c4ad3b2f4a48f6206c.tar.gz linux-655ff1a1a727f9b83df317c4ad3b2f4a48f6206c.zip | |
crypto: marvell - create common Kconfig and Makefile for Marvell
Creats common Kconfig and Makefile for Marvell crypto drivers.
Signed-off-by: SrujanaChalla <schalla@marvell.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/marvell/cipher.c')
| -rw-r--r-- | drivers/crypto/marvell/cipher.c | 798 |
1 files changed, 0 insertions, 798 deletions
diff --git a/drivers/crypto/marvell/cipher.c b/drivers/crypto/marvell/cipher.c deleted file mode 100644 index c24f34a48cef..000000000000 --- a/drivers/crypto/marvell/cipher.c +++ /dev/null @@ -1,798 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Cipher algorithms supported by the CESA: DES, 3DES and AES. - * - * Author: Boris Brezillon <boris.brezillon@free-electrons.com> - * Author: Arnaud Ebalard <arno@natisbad.org> - * - * This work is based on an initial version written by - * Sebastian Andrzej Siewior < sebastian at breakpoint dot cc > - */ - -#include <crypto/aes.h> -#include <crypto/internal/des.h> - -#include "cesa.h" - -struct mv_cesa_des_ctx { - struct mv_cesa_ctx base; - u8 key[DES_KEY_SIZE]; -}; - -struct mv_cesa_des3_ctx { - struct mv_cesa_ctx base; - u8 key[DES3_EDE_KEY_SIZE]; -}; - -struct mv_cesa_aes_ctx { - struct mv_cesa_ctx base; - struct crypto_aes_ctx aes; -}; - -struct mv_cesa_skcipher_dma_iter { - struct mv_cesa_dma_iter base; - struct mv_cesa_sg_dma_iter src; - struct mv_cesa_sg_dma_iter dst; -}; - -static inline void -mv_cesa_skcipher_req_iter_init(struct mv_cesa_skcipher_dma_iter *iter, - struct skcipher_request *req) -{ - mv_cesa_req_dma_iter_init(&iter->base, req->cryptlen); - mv_cesa_sg_dma_iter_init(&iter->src, req->src, DMA_TO_DEVICE); - mv_cesa_sg_dma_iter_init(&iter->dst, req->dst, DMA_FROM_DEVICE); -} - -static inline bool -mv_cesa_skcipher_req_iter_next_op(struct mv_cesa_skcipher_dma_iter *iter) -{ - iter->src.op_offset = 0; - iter->dst.op_offset = 0; - - return mv_cesa_req_dma_iter_next_op(&iter->base); -} - -static inline void -mv_cesa_skcipher_dma_cleanup(struct skcipher_request *req) -{ - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); - - if (req->dst != req->src) { - dma_unmap_sg(cesa_dev->dev, req->dst, creq->dst_nents, - DMA_FROM_DEVICE); - dma_unmap_sg(cesa_dev->dev, req->src, creq->src_nents, - DMA_TO_DEVICE); - } else { - dma_unmap_sg(cesa_dev->dev, req->src, creq->src_nents, - DMA_BIDIRECTIONAL); - } - mv_cesa_dma_cleanup(&creq->base); -} - -static inline void mv_cesa_skcipher_cleanup(struct skcipher_request *req) -{ - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); - - if (mv_cesa_req_get_type(&creq->base) == CESA_DMA_REQ) - mv_cesa_skcipher_dma_cleanup(req); -} - -static void mv_cesa_skcipher_std_step(struct skcipher_request *req) -{ - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); - struct mv_cesa_skcipher_std_req *sreq = &creq->std; - struct mv_cesa_engine *engine = creq->base.engine; - size_t len = min_t(size_t, req->cryptlen - sreq->offset, - CESA_SA_SRAM_PAYLOAD_SIZE); - - mv_cesa_adjust_op(engine, &sreq->op); - memcpy_toio(engine->sram, &sreq->op, sizeof(sreq->op)); - - len = sg_pcopy_to_buffer(req->src, creq->src_nents, - engine->sram + CESA_SA_DATA_SRAM_OFFSET, - len, sreq->offset); - - sreq->size = len; - mv_cesa_set_crypt_op_len(&sreq->op, len); - - /* FIXME: only update enc_len field */ - if (!sreq->skip_ctx) { - memcpy_toio(engine->sram, &sreq->op, sizeof(sreq->op)); - sreq->skip_ctx = true; - } else { - memcpy_toio(engine->sram, &sreq->op, sizeof(sreq->op.desc)); - } - - mv_cesa_set_int_mask(engine, CESA_SA_INT_ACCEL0_DONE); - writel_relaxed(CESA_SA_CFG_PARA_DIS, engine->regs + CESA_SA_CFG); - BUG_ON(readl(engine->regs + CESA_SA_CMD) & - CESA_SA_CMD_EN_CESA_SA_ACCL0); - writel(CESA_SA_CMD_EN_CESA_SA_ACCL0, engine->regs + CESA_SA_CMD); -} - -static int mv_cesa_skcipher_std_process(struct skcipher_request *req, - u32 status) -{ - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); - struct mv_cesa_skcipher_std_req *sreq = &creq->std; - struct mv_cesa_engine *engine = creq->base.engine; - size_t len; - - len = sg_pcopy_from_buffer(req->dst, creq->dst_nents, - engine->sram + CESA_SA_DATA_SRAM_OFFSET, - sreq->size, sreq->offset); - - sreq->offset += len; - if (sreq->offset < req->cryptlen) - return -EINPROGRESS; - - return 0; -} - -static int mv_cesa_skcipher_process(struct crypto_async_request *req, - u32 status) -{ - struct skcipher_request *skreq = skcipher_request_cast(req); - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(skreq); - struct mv_cesa_req *basereq = &creq->base; - - if (mv_cesa_req_get_type(basereq) == CESA_STD_REQ) - return mv_cesa_skcipher_std_process(skreq, status); - - return mv_cesa_dma_process(basereq, status); -} - -static void mv_cesa_skcipher_step(struct crypto_async_request *req) -{ - struct skcipher_request *skreq = skcipher_request_cast(req); - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(skreq); - - if (mv_cesa_req_get_type(&creq->base) == CESA_DMA_REQ) - mv_cesa_dma_step(&creq->base); - else - mv_cesa_skcipher_std_step(skreq); -} - -static inline void -mv_cesa_skcipher_dma_prepare(struct skcipher_request *req) -{ - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); - struct mv_cesa_req *basereq = &creq->base; - - mv_cesa_dma_prepare(basereq, basereq->engine); -} - -static inline void -mv_cesa_skcipher_std_prepare(struct skcipher_request *req) -{ - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); - struct mv_cesa_skcipher_std_req *sreq = &creq->std; - - sreq->size = 0; - sreq->offset = 0; -} - -static inline void mv_cesa_skcipher_prepare(struct crypto_async_request *req, - struct mv_cesa_engine *engine) -{ - struct skcipher_request *skreq = skcipher_request_cast(req); - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(skreq); - creq->base.engine = engine; - - if (mv_cesa_req_get_type(&creq->base) == CESA_DMA_REQ) - mv_cesa_skcipher_dma_prepare(skreq); - else - mv_cesa_skcipher_std_prepare(skreq); -} - -static inline void -mv_cesa_skcipher_req_cleanup(struct crypto_async_request *req) -{ - struct skcipher_request *skreq = skcipher_request_cast(req); - - mv_cesa_skcipher_cleanup(skreq); -} - -static void -mv_cesa_skcipher_complete(struct crypto_async_request *req) -{ - struct skcipher_request *skreq = skcipher_request_cast(req); - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(skreq); - struct mv_cesa_engine *engine = creq->base.engine; - unsigned int ivsize; - - atomic_sub(skreq->cryptlen, &engine->load); - ivsize = crypto_skcipher_ivsize(crypto_skcipher_reqtfm(skreq)); - - if (mv_cesa_req_get_type(&creq->base) == CESA_DMA_REQ) { - struct mv_cesa_req *basereq; - - basereq = &creq->base; - memcpy(skreq->iv, basereq->chain.last->op->ctx.skcipher.iv, - ivsize); - } else { - memcpy_fromio(skreq->iv, - engine->sram + CESA_SA_CRYPT_IV_SRAM_OFFSET, - ivsize); - } -} - -static const struct mv_cesa_req_ops mv_cesa_skcipher_req_ops = { - .step = mv_cesa_skcipher_step, - .process = mv_cesa_skcipher_process, - .cleanup = mv_cesa_skcipher_req_cleanup, - .complete = mv_cesa_skcipher_complete, -}; - -static void mv_cesa_skcipher_cra_exit(struct crypto_tfm *tfm) -{ - void *ctx = crypto_tfm_ctx(tfm); - - memzero_explicit(ctx, tfm->__crt_alg->cra_ctxsize); -} - -static int mv_cesa_skcipher_cra_init(struct crypto_tfm *tfm) -{ - struct mv_cesa_ctx *ctx = crypto_tfm_ctx(tfm); - - ctx->ops = &mv_cesa_skcipher_req_ops; - - crypto_skcipher_set_reqsize(__crypto_skcipher_cast(tfm), - sizeof(struct mv_cesa_skcipher_req)); - - return 0; -} - -static int mv_cesa_aes_setkey(struct crypto_skcipher *cipher, const u8 *key, - unsigned int len) -{ - struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher); - struct mv_cesa_aes_ctx *ctx = crypto_tfm_ctx(tfm); - int remaining; - int offset; - int ret; - int i; - - ret = aes_expandkey(&ctx->aes, key, len); - if (ret) - return ret; - - remaining = (ctx->aes.key_length - 16) / 4; - offset = ctx->aes.key_length + 24 - remaining; - for (i = 0; i < remaining; i++) - ctx->aes.key_dec[4 + i] = - cpu_to_le32(ctx->aes.key_enc[offset + i]); - - return 0; -} - -static int mv_cesa_des_setkey(struct crypto_skcipher *cipher, const u8 *key, - unsigned int len) -{ - struct mv_cesa_des_ctx *ctx = crypto_skcipher_ctx(cipher); - int err; - - err = verify_skcipher_des_key(cipher, key); - if (err) - return err; - - memcpy(ctx->key, key, DES_KEY_SIZE); - - return 0; -} - -static int mv_cesa_des3_ede_setkey(struct crypto_skcipher *cipher, - const u8 *key, unsigned int len) -{ - struct mv_cesa_des_ctx *ctx = crypto_skcipher_ctx(cipher); - int err; - - err = verify_skcipher_des3_key(cipher, key); - if (err) - return err; - - memcpy(ctx->key, key, DES3_EDE_KEY_SIZE); - - return 0; -} - -static int mv_cesa_skcipher_dma_req_init(struct skcipher_request *req, - const struct mv_cesa_op_ctx *op_templ) -{ - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); - gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? - GFP_KERNEL : GFP_ATOMIC; - struct mv_cesa_req *basereq = &creq->base; - struct mv_cesa_skcipher_dma_iter iter; - bool skip_ctx = false; - int ret; - - basereq->chain.first = NULL; - basereq->chain.last = NULL; - - if (req->src != req->dst) { - ret = dma_map_sg(cesa_dev->dev, req->src, creq->src_nents, - DMA_TO_DEVICE); - if (!ret) - return -ENOMEM; - - ret = dma_map_sg(cesa_dev->dev, req->dst, creq->dst_nents, - DMA_FROM_DEVICE); - if (!ret) { - ret = -ENOMEM; - goto err_unmap_src; - } - } else { - ret = dma_map_sg(cesa_dev->dev, req->src, creq->src_nents, - DMA_BIDIRECTIONAL); - if (!ret) - return -ENOMEM; - } - - mv_cesa_tdma_desc_iter_init(&basereq->chain); - mv_cesa_skcipher_req_iter_init(&iter, req); - - do { - struct mv_cesa_op_ctx *op; - - op = mv_cesa_dma_add_op(&basereq->chain, op_templ, skip_ctx, flags); - if (IS_ERR(op)) { - ret = PTR_ERR(op); - goto err_free_tdma; - } - skip_ctx = true; - - mv_cesa_set_crypt_op_len(op, iter.base.op_len); - - /* Add input transfers */ - ret = mv_cesa_dma_add_op_transfers(&basereq->chain, &iter.base, - &iter.src, flags); - if (ret) - goto err_free_tdma; - - /* Add dummy desc to launch the crypto operation */ - ret = mv_cesa_dma_add_dummy_launch(&basereq->chain, flags); - if (ret) - goto err_free_tdma; - - /* Add output transfers */ - ret = mv_cesa_dma_add_op_transfers(&basereq->chain, &iter.base, - &iter.dst, flags); - if (ret) - goto err_free_tdma; - - } while (mv_cesa_skcipher_req_iter_next_op(&iter)); - - /* Add output data for IV */ - ret = mv_cesa_dma_add_result_op(&basereq->chain, CESA_SA_CFG_SRAM_OFFSET, - CESA_SA_DATA_SRAM_OFFSET, - CESA_TDMA_SRC_IN_SRAM, flags); - - if (ret) - goto err_free_tdma; - - basereq->chain.last->flags |= CESA_TDMA_END_OF_REQ; - - return 0; - -err_free_tdma: - mv_cesa_dma_cleanup(basereq); - if (req->dst != req->src) - dma_unmap_sg(cesa_dev->dev, req->dst, creq->dst_nents, - DMA_FROM_DEVICE); - -err_unmap_src: - dma_unmap_sg(cesa_dev->dev, req->src, creq->src_nents, - req->dst != req->src ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL); - - return ret; -} - -static inline int -mv_cesa_skcipher_std_req_init(struct skcipher_request *req, - const struct mv_cesa_op_ctx *op_templ) -{ - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); - struct mv_cesa_skcipher_std_req *sreq = &creq->std; - struct mv_cesa_req *basereq = &creq->base; - - sreq->op = *op_templ; - sreq->skip_ctx = false; - basereq->chain.first = NULL; - basereq->chain.last = NULL; - - return 0; -} - -static int mv_cesa_skcipher_req_init(struct skcipher_request *req, - struct mv_cesa_op_ctx *tmpl) -{ - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); - struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); - unsigned int blksize = crypto_skcipher_blocksize(tfm); - int ret; - - if (!IS_ALIGNED(req->cryptlen, blksize)) - return -EINVAL; - - creq->src_nents = sg_nents_for_len(req->src, req->cryptlen); - if (creq->src_nents < 0) { - dev_err(cesa_dev->dev, "Invalid number of src SG"); - return creq->src_nents; - } - creq->dst_nents = sg_nents_for_len(req->dst, req->cryptlen); - if (creq->dst_nents < 0) { - dev_err(cesa_dev->dev, "Invalid number of dst SG"); - return creq->dst_nents; - } - - mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_OP_CRYPT_ONLY, - CESA_SA_DESC_CFG_OP_MSK); - - if (cesa_dev->caps->has_tdma) - ret = mv_cesa_skcipher_dma_req_init(req, tmpl); - else - ret = mv_cesa_skcipher_std_req_init(req, tmpl); - - return ret; -} - -static int mv_cesa_skcipher_queue_req(struct skcipher_request *req, - struct mv_cesa_op_ctx *tmpl) -{ - int ret; - struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req); - struct mv_cesa_engine *engine; - - ret = mv_cesa_skcipher_req_init(req, tmpl); - if (ret) - return ret; - - engine = mv_cesa_select_engine(req->cryptlen); - mv_cesa_skcipher_prepare(&req->base, engine); - - ret = mv_cesa_queue_req(&req->base, &creq->base); - - if (mv_cesa_req_needs_cleanup(&req->base, ret)) - mv_cesa_skcipher_cleanup(req); - - return ret; -} - -static int mv_cesa_des_op(struct skcipher_request *req, - struct mv_cesa_op_ctx *tmpl) -{ - struct mv_cesa_des_ctx *ctx = crypto_tfm_ctx(req->base.tfm); - - mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTM_DES, - CESA_SA_DESC_CFG_CRYPTM_MSK); - - memcpy(tmpl->ctx.skcipher.key, ctx->key, DES_KEY_SIZE); - - return mv_cesa_skcipher_queue_req(req, tmpl); -} - -static int mv_cesa_ecb_des_encrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, - CESA_SA_DESC_CFG_CRYPTCM_ECB | - CESA_SA_DESC_CFG_DIR_ENC); - - return mv_cesa_des_op(req, &tmpl); -} - -static int mv_cesa_ecb_des_decrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, - CESA_SA_DESC_CFG_CRYPTCM_ECB | - CESA_SA_DESC_CFG_DIR_DEC); - - return mv_cesa_des_op(req, &tmpl); -} - -struct skcipher_alg mv_cesa_ecb_des_alg = { - .setkey = mv_cesa_des_setkey, - .encrypt = mv_cesa_ecb_des_encrypt, - .decrypt = mv_cesa_ecb_des_decrypt, - .min_keysize = DES_KEY_SIZE, - .max_keysize = DES_KEY_SIZE, - .base = { - .cra_name = "ecb(des)", - .cra_driver_name = "mv-ecb-des", - .cra_priority = 300, - .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC, - .cra_blocksize = DES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct mv_cesa_des_ctx), - .cra_alignmask = 0, - .cra_module = THIS_MODULE, - .cra_init = mv_cesa_skcipher_cra_init, - .cra_exit = mv_cesa_skcipher_cra_exit, - }, -}; - -static int mv_cesa_cbc_des_op(struct skcipher_request *req, - struct mv_cesa_op_ctx *tmpl) -{ - mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTCM_CBC, - CESA_SA_DESC_CFG_CRYPTCM_MSK); - - memcpy(tmpl->ctx.skcipher.iv, req->iv, DES_BLOCK_SIZE); - - return mv_cesa_des_op(req, tmpl); -} - -static int mv_cesa_cbc_des_encrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_DIR_ENC); - - return mv_cesa_cbc_des_op(req, &tmpl); -} - -static int mv_cesa_cbc_des_decrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_DIR_DEC); - - return mv_cesa_cbc_des_op(req, &tmpl); -} - -struct skcipher_alg mv_cesa_cbc_des_alg = { - .setkey = mv_cesa_des_setkey, - .encrypt = mv_cesa_cbc_des_encrypt, - .decrypt = mv_cesa_cbc_des_decrypt, - .min_keysize = DES_KEY_SIZE, - .max_keysize = DES_KEY_SIZE, - .ivsize = DES_BLOCK_SIZE, - .base = { - .cra_name = "cbc(des)", - .cra_driver_name = "mv-cbc-des", - .cra_priority = 300, - .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC, - .cra_blocksize = DES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct mv_cesa_des_ctx), - .cra_alignmask = 0, - .cra_module = THIS_MODULE, - .cra_init = mv_cesa_skcipher_cra_init, - .cra_exit = mv_cesa_skcipher_cra_exit, - }, -}; - -static int mv_cesa_des3_op(struct skcipher_request *req, - struct mv_cesa_op_ctx *tmpl) -{ - struct mv_cesa_des3_ctx *ctx = crypto_tfm_ctx(req->base.tfm); - - mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTM_3DES, - CESA_SA_DESC_CFG_CRYPTM_MSK); - - memcpy(tmpl->ctx.skcipher.key, ctx->key, DES3_EDE_KEY_SIZE); - - return mv_cesa_skcipher_queue_req(req, tmpl); -} - -static int mv_cesa_ecb_des3_ede_encrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, - CESA_SA_DESC_CFG_CRYPTCM_ECB | - CESA_SA_DESC_CFG_3DES_EDE | - CESA_SA_DESC_CFG_DIR_ENC); - - return mv_cesa_des3_op(req, &tmpl); -} - -static int mv_cesa_ecb_des3_ede_decrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, - CESA_SA_DESC_CFG_CRYPTCM_ECB | - CESA_SA_DESC_CFG_3DES_EDE | - CESA_SA_DESC_CFG_DIR_DEC); - - return mv_cesa_des3_op(req, &tmpl); -} - -struct skcipher_alg mv_cesa_ecb_des3_ede_alg = { - .setkey = mv_cesa_des3_ede_setkey, - .encrypt = mv_cesa_ecb_des3_ede_encrypt, - .decrypt = mv_cesa_ecb_des3_ede_decrypt, - .min_keysize = DES3_EDE_KEY_SIZE, - .max_keysize = DES3_EDE_KEY_SIZE, - .ivsize = DES3_EDE_BLOCK_SIZE, - .base = { - .cra_name = "ecb(des3_ede)", - .cra_driver_name = "mv-ecb-des3-ede", - .cra_priority = 300, - .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC, - .cra_blocksize = DES3_EDE_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct mv_cesa_des3_ctx), - .cra_alignmask = 0, - .cra_module = THIS_MODULE, - .cra_init = mv_cesa_skcipher_cra_init, - .cra_exit = mv_cesa_skcipher_cra_exit, - }, -}; - -static int mv_cesa_cbc_des3_op(struct skcipher_request *req, - struct mv_cesa_op_ctx *tmpl) -{ - memcpy(tmpl->ctx.skcipher.iv, req->iv, DES3_EDE_BLOCK_SIZE); - - return mv_cesa_des3_op(req, tmpl); -} - -static int mv_cesa_cbc_des3_ede_encrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, - CESA_SA_DESC_CFG_CRYPTCM_CBC | - CESA_SA_DESC_CFG_3DES_EDE | - CESA_SA_DESC_CFG_DIR_ENC); - - return mv_cesa_cbc_des3_op(req, &tmpl); -} - -static int mv_cesa_cbc_des3_ede_decrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, - CESA_SA_DESC_CFG_CRYPTCM_CBC | - CESA_SA_DESC_CFG_3DES_EDE | - CESA_SA_DESC_CFG_DIR_DEC); - - return mv_cesa_cbc_des3_op(req, &tmpl); -} - -struct skcipher_alg mv_cesa_cbc_des3_ede_alg = { - .setkey = mv_cesa_des3_ede_setkey, - .encrypt = mv_cesa_cbc_des3_ede_encrypt, - .decrypt = mv_cesa_cbc_des3_ede_decrypt, - .min_keysize = DES3_EDE_KEY_SIZE, - .max_keysize = DES3_EDE_KEY_SIZE, - .ivsize = DES3_EDE_BLOCK_SIZE, - .base = { - .cra_name = "cbc(des3_ede)", - .cra_driver_name = "mv-cbc-des3-ede", - .cra_priority = 300, - .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC, - .cra_blocksize = DES3_EDE_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct mv_cesa_des3_ctx), - .cra_alignmask = 0, - .cra_module = THIS_MODULE, - .cra_init = mv_cesa_skcipher_cra_init, - .cra_exit = mv_cesa_skcipher_cra_exit, - }, -}; - -static int mv_cesa_aes_op(struct skcipher_request *req, - struct mv_cesa_op_ctx *tmpl) -{ - struct mv_cesa_aes_ctx *ctx = crypto_tfm_ctx(req->base.tfm); - int i; - u32 *key; - u32 cfg; - - cfg = CESA_SA_DESC_CFG_CRYPTM_AES; - - if (mv_cesa_get_op_cfg(tmpl) & CESA_SA_DESC_CFG_DIR_DEC) - key = ctx->aes.key_dec; - else - key = ctx->aes.key_enc; - - for (i = 0; i < ctx->aes.key_length / sizeof(u32); i++) - tmpl->ctx.skcipher.key[i] = cpu_to_le32(key[i]); - - if (ctx->aes.key_length == 24) - cfg |= CESA_SA_DESC_CFG_AES_LEN_192; - else if (ctx->aes.key_length == 32) - cfg |= CESA_SA_DESC_CFG_AES_LEN_256; - - mv_cesa_update_op_cfg(tmpl, cfg, - CESA_SA_DESC_CFG_CRYPTM_MSK | - CESA_SA_DESC_CFG_AES_LEN_MSK); - - return mv_cesa_skcipher_queue_req(req, tmpl); -} - -static int mv_cesa_ecb_aes_encrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, - CESA_SA_DESC_CFG_CRYPTCM_ECB | - CESA_SA_DESC_CFG_DIR_ENC); - - return mv_cesa_aes_op(req, &tmpl); -} - -static int mv_cesa_ecb_aes_decrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, - CESA_SA_DESC_CFG_CRYPTCM_ECB | - CESA_SA_DESC_CFG_DIR_DEC); - - return mv_cesa_aes_op(req, &tmpl); -} - -struct skcipher_alg mv_cesa_ecb_aes_alg = { - .setkey = mv_cesa_aes_setkey, - .encrypt = mv_cesa_ecb_aes_encrypt, - .decrypt = mv_cesa_ecb_aes_decrypt, - .min_keysize = AES_MIN_KEY_SIZE, - .max_keysize = AES_MAX_KEY_SIZE, - .base = { - .cra_name = "ecb(aes)", - .cra_driver_name = "mv-ecb-aes", - .cra_priority = 300, - .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC, - .cra_blocksize = AES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct mv_cesa_aes_ctx), - .cra_alignmask = 0, - .cra_module = THIS_MODULE, - .cra_init = mv_cesa_skcipher_cra_init, - .cra_exit = mv_cesa_skcipher_cra_exit, - }, -}; - -static int mv_cesa_cbc_aes_op(struct skcipher_request *req, - struct mv_cesa_op_ctx *tmpl) -{ - mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTCM_CBC, - CESA_SA_DESC_CFG_CRYPTCM_MSK); - memcpy(tmpl->ctx.skcipher.iv, req->iv, AES_BLOCK_SIZE); - - return mv_cesa_aes_op(req, tmpl); -} - -static int mv_cesa_cbc_aes_encrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_DIR_ENC); - - return mv_cesa_cbc_aes_op(req, &tmpl); -} - -static int mv_cesa_cbc_aes_decrypt(struct skcipher_request *req) -{ - struct mv_cesa_op_ctx tmpl; - - mv_cesa_set_op_cfg(&tmpl, CESA_SA_DESC_CFG_DIR_DEC); - - return mv_cesa_cbc_aes_op(req, &tmpl); -} - -struct skcipher_alg mv_cesa_cbc_aes_alg = { - .setkey = mv_cesa_aes_setkey, - .encrypt = mv_cesa_cbc_aes_encrypt, - .decrypt = mv_cesa_cbc_aes_decrypt, - .min_keysize = AES_MIN_KEY_SIZE, - .max_keysize = AES_MAX_KEY_SIZE, - .ivsize = AES_BLOCK_SIZE, - .base = { - .cra_name = "cbc(aes)", - .cra_driver_name = "mv-cbc-aes", - .cra_priority = 300, - .cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC, - .cra_blocksize = AES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct mv_cesa_aes_ctx), - .cra_alignmask = 0, - .cra_module = THIS_MODULE, - .cra_init = mv_cesa_skcipher_cra_init, - .cra_exit = mv_cesa_skcipher_cra_exit, - }, -}; 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