diff options
Diffstat (limited to 'drivers/crypto/picoxcell_crypto.c')
| -rw-r--r-- | drivers/crypto/picoxcell_crypto.c | 677 |
1 files changed, 310 insertions, 367 deletions
diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c index 4f56f3681..da36de26a 100644 --- a/drivers/crypto/picoxcell_crypto.c +++ b/drivers/crypto/picoxcell_crypto.c @@ -99,11 +99,16 @@ struct spacc_req { dma_addr_t src_addr, dst_addr; struct spacc_ddt *src_ddt, *dst_ddt; void (*complete)(struct spacc_req *req); +}; - /* AEAD specific bits. */ - u8 *giv; - size_t giv_len; - dma_addr_t giv_pa; +struct spacc_aead { + unsigned long ctrl_default; + unsigned long type; + struct aead_alg alg; + struct spacc_engine *engine; + struct list_head entry; + int key_offs; + int iv_offs; }; struct spacc_engine { @@ -121,6 +126,9 @@ struct spacc_engine { struct spacc_alg *algs; unsigned num_algs; struct list_head registered_algs; + struct spacc_aead *aeads; + unsigned num_aeads; + struct list_head registered_aeads; size_t cipher_pg_sz; size_t hash_pg_sz; const char *name; @@ -174,8 +182,6 @@ struct spacc_aead_ctx { u8 cipher_key_len; u8 hash_key_len; struct crypto_aead *sw_cipher; - size_t auth_size; - u8 salt[AES_BLOCK_SIZE]; }; static int spacc_ablk_submit(struct spacc_req *req); @@ -185,6 +191,11 @@ static inline struct spacc_alg *to_spacc_alg(struct crypto_alg *alg) return alg ? container_of(alg, struct spacc_alg, alg) : NULL; } +static inline struct spacc_aead *to_spacc_aead(struct aead_alg *alg) +{ + return container_of(alg, struct spacc_aead, alg); +} + static inline int spacc_fifo_cmd_full(struct spacc_engine *engine) { u32 fifo_stat = readl(engine->regs + SPA_FIFO_STAT_REG_OFFSET); @@ -310,120 +321,117 @@ out: return NULL; } -static int spacc_aead_make_ddts(struct spacc_req *req, u8 *giv) +static int spacc_aead_make_ddts(struct aead_request *areq) { - struct aead_request *areq = container_of(req->req, struct aead_request, - base); + struct crypto_aead *aead = crypto_aead_reqtfm(areq); + struct spacc_req *req = aead_request_ctx(areq); struct spacc_engine *engine = req->engine; struct spacc_ddt *src_ddt, *dst_ddt; - unsigned ivsize = crypto_aead_ivsize(crypto_aead_reqtfm(areq)); - unsigned nents = sg_count(areq->src, areq->cryptlen); unsigned total; - dma_addr_t iv_addr; + unsigned int src_nents, dst_nents; struct scatterlist *cur; - int i, dst_ents, src_ents, assoc_ents; - u8 *iv = giv ? giv : areq->iv; + int i, dst_ents, src_ents; + + total = areq->assoclen + areq->cryptlen; + if (req->is_encrypt) + total += crypto_aead_authsize(aead); + + src_nents = sg_count(areq->src, total); + if (src_nents + 1 > MAX_DDT_LEN) + return -E2BIG; + + dst_nents = 0; + if (areq->src != areq->dst) { + dst_nents = sg_count(areq->dst, total); + if (src_nents + 1 > MAX_DDT_LEN) + return -E2BIG; + } src_ddt = dma_pool_alloc(engine->req_pool, GFP_ATOMIC, &req->src_addr); if (!src_ddt) - return -ENOMEM; + goto err; dst_ddt = dma_pool_alloc(engine->req_pool, GFP_ATOMIC, &req->dst_addr); - if (!dst_ddt) { - dma_pool_free(engine->req_pool, src_ddt, req->src_addr); - return -ENOMEM; - } + if (!dst_ddt) + goto err_free_src; req->src_ddt = src_ddt; req->dst_ddt = dst_ddt; - assoc_ents = dma_map_sg(engine->dev, areq->assoc, - sg_count(areq->assoc, areq->assoclen), DMA_TO_DEVICE); - if (areq->src != areq->dst) { - src_ents = dma_map_sg(engine->dev, areq->src, nents, + if (dst_nents) { + src_ents = dma_map_sg(engine->dev, areq->src, src_nents, DMA_TO_DEVICE); - dst_ents = dma_map_sg(engine->dev, areq->dst, nents, + if (!src_ents) + goto err_free_dst; + + dst_ents = dma_map_sg(engine->dev, areq->dst, dst_nents, DMA_FROM_DEVICE); + + if (!dst_ents) { + dma_unmap_sg(engine->dev, areq->src, src_nents, + DMA_TO_DEVICE); + goto err_free_dst; + } } else { - src_ents = dma_map_sg(engine->dev, areq->src, nents, + src_ents = dma_map_sg(engine->dev, areq->src, src_nents, DMA_BIDIRECTIONAL); - dst_ents = 0; + if (!src_ents) + goto err_free_dst; + dst_ents = src_ents; } /* - * Map the IV/GIV. For the GIV it needs to be bidirectional as it is - * formed by the crypto block and sent as the ESP IV for IPSEC. + * Now map in the payload for the source and destination and terminate + * with the NULL pointers. */ - iv_addr = dma_map_single(engine->dev, iv, ivsize, - giv ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE); - req->giv_pa = iv_addr; + for_each_sg(areq->src, cur, src_ents, i) + ddt_set(src_ddt++, sg_dma_address(cur), sg_dma_len(cur)); - /* - * Map the associated data. For decryption we don't copy the - * associated data. - */ - total = areq->assoclen; - for_each_sg(areq->assoc, cur, assoc_ents, i) { + /* For decryption we need to skip the associated data. */ + total = req->is_encrypt ? 0 : areq->assoclen; + for_each_sg(areq->dst, cur, dst_ents, i) { unsigned len = sg_dma_len(cur); - if (len > total) - len = total; - - total -= len; + if (len <= total) { + total -= len; + continue; + } - ddt_set(src_ddt++, sg_dma_address(cur), len); - if (req->is_encrypt) - ddt_set(dst_ddt++, sg_dma_address(cur), len); + ddt_set(dst_ddt++, sg_dma_address(cur) + total, len - total); } - ddt_set(src_ddt++, iv_addr, ivsize); - - if (giv || req->is_encrypt) - ddt_set(dst_ddt++, iv_addr, ivsize); - - /* - * Now map in the payload for the source and destination and terminate - * with the NULL pointers. - */ - for_each_sg(areq->src, cur, src_ents, i) { - ddt_set(src_ddt++, sg_dma_address(cur), sg_dma_len(cur)); - if (areq->src == areq->dst) - ddt_set(dst_ddt++, sg_dma_address(cur), - sg_dma_len(cur)); - } - - for_each_sg(areq->dst, cur, dst_ents, i) - ddt_set(dst_ddt++, sg_dma_address(cur), - sg_dma_len(cur)); ddt_set(src_ddt, 0, 0); ddt_set(dst_ddt, 0, 0); return 0; + +err_free_dst: + dma_pool_free(engine->req_pool, dst_ddt, req->dst_addr); +err_free_src: + dma_pool_free(engine->req_pool, src_ddt, req->src_addr); +err: + return -ENOMEM; } static void spacc_aead_free_ddts(struct spacc_req *req) { struct aead_request *areq = container_of(req->req, struct aead_request, base); - struct spacc_alg *alg = to_spacc_alg(req->req->tfm->__crt_alg); - struct spacc_ablk_ctx *aead_ctx = crypto_tfm_ctx(req->req->tfm); + struct crypto_aead *aead = crypto_aead_reqtfm(areq); + unsigned total = areq->assoclen + areq->cryptlen + + (req->is_encrypt ? crypto_aead_authsize(aead) : 0); + struct spacc_aead_ctx *aead_ctx = crypto_aead_ctx(aead); struct spacc_engine *engine = aead_ctx->generic.engine; - unsigned ivsize = alg->alg.cra_aead.ivsize; - unsigned nents = sg_count(areq->src, areq->cryptlen); + unsigned nents = sg_count(areq->src, total); if (areq->src != areq->dst) { dma_unmap_sg(engine->dev, areq->src, nents, DMA_TO_DEVICE); dma_unmap_sg(engine->dev, areq->dst, - sg_count(areq->dst, areq->cryptlen), + sg_count(areq->dst, total), DMA_FROM_DEVICE); } else dma_unmap_sg(engine->dev, areq->src, nents, DMA_BIDIRECTIONAL); - dma_unmap_sg(engine->dev, areq->assoc, - sg_count(areq->assoc, areq->assoclen), DMA_TO_DEVICE); - - dma_unmap_single(engine->dev, req->giv_pa, ivsize, DMA_BIDIRECTIONAL); - dma_pool_free(engine->req_pool, req->src_ddt, req->src_addr); dma_pool_free(engine->req_pool, req->dst_ddt, req->dst_addr); } @@ -438,65 +446,22 @@ static void spacc_free_ddt(struct spacc_req *req, struct spacc_ddt *ddt, dma_pool_free(req->engine->req_pool, ddt, ddt_addr); } -/* - * Set key for a DES operation in an AEAD cipher. This also performs weak key - * checking if required. - */ -static int spacc_aead_des_setkey(struct crypto_aead *aead, const u8 *key, - unsigned int len) -{ - struct crypto_tfm *tfm = crypto_aead_tfm(aead); - struct spacc_aead_ctx *ctx = crypto_tfm_ctx(tfm); - u32 tmp[DES_EXPKEY_WORDS]; - - if (unlikely(!des_ekey(tmp, key)) && - (crypto_aead_get_flags(aead)) & CRYPTO_TFM_REQ_WEAK_KEY) { - tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY; - return -EINVAL; - } - - memcpy(ctx->cipher_key, key, len); - ctx->cipher_key_len = len; - - return 0; -} - -/* Set the key for the AES block cipher component of the AEAD transform. */ -static int spacc_aead_aes_setkey(struct crypto_aead *aead, const u8 *key, - unsigned int len) -{ - struct crypto_tfm *tfm = crypto_aead_tfm(aead); - struct spacc_aead_ctx *ctx = crypto_tfm_ctx(tfm); - - /* - * IPSec engine only supports 128 and 256 bit AES keys. If we get a - * request for any other size (192 bits) then we need to do a software - * fallback. - */ - if (len != AES_KEYSIZE_128 && len != AES_KEYSIZE_256) { - /* - * Set the fallback transform to use the same request flags as - * the hardware transform. - */ - ctx->sw_cipher->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK; - ctx->sw_cipher->base.crt_flags |= - tfm->crt_flags & CRYPTO_TFM_REQ_MASK; - return crypto_aead_setkey(ctx->sw_cipher, key, len); - } - - memcpy(ctx->cipher_key, key, len); - ctx->cipher_key_len = len; - - return 0; -} - static int spacc_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) { struct spacc_aead_ctx *ctx = crypto_aead_ctx(tfm); - struct spacc_alg *alg = to_spacc_alg(tfm->base.__crt_alg); struct crypto_authenc_keys keys; - int err = -EINVAL; + int err; + + crypto_aead_clear_flags(ctx->sw_cipher, CRYPTO_TFM_REQ_MASK); + crypto_aead_set_flags(ctx->sw_cipher, crypto_aead_get_flags(tfm) & + CRYPTO_TFM_REQ_MASK); + err = crypto_aead_setkey(ctx->sw_cipher, key, keylen); + crypto_aead_clear_flags(tfm, CRYPTO_TFM_RES_MASK); + crypto_aead_set_flags(tfm, crypto_aead_get_flags(ctx->sw_cipher) & + CRYPTO_TFM_RES_MASK); + if (err) + return err; if (crypto_authenc_extractkeys(&keys, key, keylen) != 0) goto badkey; @@ -507,14 +472,8 @@ static int spacc_aead_setkey(struct crypto_aead *tfm, const u8 *key, if (keys.authkeylen > sizeof(ctx->hash_ctx)) goto badkey; - if ((alg->ctrl_default & SPACC_CRYPTO_ALG_MASK) == - SPA_CTRL_CIPH_ALG_AES) - err = spacc_aead_aes_setkey(tfm, keys.enckey, keys.enckeylen); - else - err = spacc_aead_des_setkey(tfm, keys.enckey, keys.enckeylen); - - if (err) - goto badkey; + memcpy(ctx->cipher_key, keys.enckey, keys.enckeylen); + ctx->cipher_key_len = keys.enckeylen; memcpy(ctx->hash_ctx, keys.authkey, keys.authkeylen); ctx->hash_key_len = keys.authkeylen; @@ -531,9 +490,7 @@ static int spacc_aead_setauthsize(struct crypto_aead *tfm, { struct spacc_aead_ctx *ctx = crypto_tfm_ctx(crypto_aead_tfm(tfm)); - ctx->auth_size = authsize; - - return 0; + return crypto_aead_setauthsize(ctx->sw_cipher, authsize); } /* @@ -541,15 +498,13 @@ static int spacc_aead_setauthsize(struct crypto_aead *tfm, * be completed in hardware because the hardware may not support certain key * sizes. In these cases we need to complete the request in software. */ -static int spacc_aead_need_fallback(struct spacc_req *req) +static int spacc_aead_need_fallback(struct aead_request *aead_req) { - struct aead_request *aead_req; - struct crypto_tfm *tfm = req->req->tfm; - struct crypto_alg *alg = req->req->tfm->__crt_alg; - struct spacc_alg *spacc_alg = to_spacc_alg(alg); - struct spacc_aead_ctx *ctx = crypto_tfm_ctx(tfm); + struct crypto_aead *aead = crypto_aead_reqtfm(aead_req); + struct aead_alg *alg = crypto_aead_alg(aead); + struct spacc_aead *spacc_alg = to_spacc_aead(alg); + struct spacc_aead_ctx *ctx = crypto_aead_ctx(aead); - aead_req = container_of(req->req, struct aead_request, base); /* * If we have a non-supported key-length, then we need to do a * software fallback. @@ -568,22 +523,17 @@ static int spacc_aead_do_fallback(struct aead_request *req, unsigned alg_type, { struct crypto_tfm *old_tfm = crypto_aead_tfm(crypto_aead_reqtfm(req)); struct spacc_aead_ctx *ctx = crypto_tfm_ctx(old_tfm); - int err; + struct aead_request *subreq = aead_request_ctx(req); - if (ctx->sw_cipher) { - /* - * Change the request to use the software fallback transform, - * and once the ciphering has completed, put the old transform - * back into the request. - */ - aead_request_set_tfm(req, ctx->sw_cipher); - err = is_encrypt ? crypto_aead_encrypt(req) : - crypto_aead_decrypt(req); - aead_request_set_tfm(req, __crypto_aead_cast(old_tfm)); - } else - err = -EINVAL; + aead_request_set_tfm(subreq, ctx->sw_cipher); + aead_request_set_callback(subreq, req->base.flags, + req->base.complete, req->base.data); + aead_request_set_crypt(subreq, req->src, req->dst, req->cryptlen, + req->iv); + aead_request_set_ad(subreq, req->assoclen); - return err; + return is_encrypt ? crypto_aead_encrypt(subreq) : + crypto_aead_decrypt(subreq); } static void spacc_aead_complete(struct spacc_req *req) @@ -594,18 +544,19 @@ static void spacc_aead_complete(struct spacc_req *req) static int spacc_aead_submit(struct spacc_req *req) { - struct crypto_tfm *tfm = req->req->tfm; - struct spacc_aead_ctx *ctx = crypto_tfm_ctx(tfm); - struct crypto_alg *alg = req->req->tfm->__crt_alg; - struct spacc_alg *spacc_alg = to_spacc_alg(alg); - struct spacc_engine *engine = ctx->generic.engine; - u32 ctrl, proc_len, assoc_len; struct aead_request *aead_req = container_of(req->req, struct aead_request, base); + struct crypto_aead *aead = crypto_aead_reqtfm(aead_req); + unsigned int authsize = crypto_aead_authsize(aead); + struct spacc_aead_ctx *ctx = crypto_aead_ctx(aead); + struct aead_alg *alg = crypto_aead_alg(aead); + struct spacc_aead *spacc_alg = to_spacc_aead(alg); + struct spacc_engine *engine = ctx->generic.engine; + u32 ctrl, proc_len, assoc_len; req->result = -EINPROGRESS; req->ctx_id = spacc_load_ctx(&ctx->generic, ctx->cipher_key, - ctx->cipher_key_len, aead_req->iv, alg->cra_aead.ivsize, + ctx->cipher_key_len, aead_req->iv, crypto_aead_ivsize(aead), ctx->hash_ctx, ctx->hash_key_len); /* Set the source and destination DDT pointers. */ @@ -617,25 +568,15 @@ static int spacc_aead_submit(struct spacc_req *req) proc_len = aead_req->cryptlen + assoc_len; /* - * If we aren't generating an IV, then we need to include the IV in the - * associated data so that it is included in the hash. - */ - if (!req->giv) { - assoc_len += crypto_aead_ivsize(crypto_aead_reqtfm(aead_req)); - proc_len += crypto_aead_ivsize(crypto_aead_reqtfm(aead_req)); - } else - proc_len += req->giv_len; - - /* * If we are decrypting, we need to take the length of the ICV out of * the processing length. */ if (!req->is_encrypt) - proc_len -= ctx->auth_size; + proc_len -= authsize; writel(proc_len, engine->regs + SPA_PROC_LEN_REG_OFFSET); writel(assoc_len, engine->regs + SPA_AAD_LEN_REG_OFFSET); - writel(ctx->auth_size, engine->regs + SPA_ICV_LEN_REG_OFFSET); + writel(authsize, engine->regs + SPA_ICV_LEN_REG_OFFSET); writel(0, engine->regs + SPA_ICV_OFFSET_REG_OFFSET); writel(0, engine->regs + SPA_AUX_INFO_REG_OFFSET); @@ -674,32 +615,29 @@ static void spacc_push(struct spacc_engine *engine) /* * Setup an AEAD request for processing. This will configure the engine, load * the context and then start the packet processing. - * - * @giv Pointer to destination address for a generated IV. If the - * request does not need to generate an IV then this should be set to NULL. */ -static int spacc_aead_setup(struct aead_request *req, u8 *giv, +static int spacc_aead_setup(struct aead_request *req, unsigned alg_type, bool is_encrypt) { - struct crypto_alg *alg = req->base.tfm->__crt_alg; - struct spacc_engine *engine = to_spacc_alg(alg)->engine; + struct crypto_aead *aead = crypto_aead_reqtfm(req); + struct aead_alg *alg = crypto_aead_alg(aead); + struct spacc_engine *engine = to_spacc_aead(alg)->engine; struct spacc_req *dev_req = aead_request_ctx(req); - int err = -EINPROGRESS; + int err; unsigned long flags; - unsigned ivsize = crypto_aead_ivsize(crypto_aead_reqtfm(req)); - dev_req->giv = giv; - dev_req->giv_len = ivsize; dev_req->req = &req->base; dev_req->is_encrypt = is_encrypt; dev_req->result = -EBUSY; dev_req->engine = engine; dev_req->complete = spacc_aead_complete; - if (unlikely(spacc_aead_need_fallback(dev_req))) + if (unlikely(spacc_aead_need_fallback(req) || + ((err = spacc_aead_make_ddts(req)) == -E2BIG))) return spacc_aead_do_fallback(req, alg_type, is_encrypt); - spacc_aead_make_ddts(dev_req, dev_req->giv); + if (err) + goto out; err = -EINPROGRESS; spin_lock_irqsave(&engine->hw_lock, flags); @@ -728,70 +666,44 @@ out: static int spacc_aead_encrypt(struct aead_request *req) { struct crypto_aead *aead = crypto_aead_reqtfm(req); - struct crypto_tfm *tfm = crypto_aead_tfm(aead); - struct spacc_alg *alg = to_spacc_alg(tfm->__crt_alg); + struct spacc_aead *alg = to_spacc_aead(crypto_aead_alg(aead)); - return spacc_aead_setup(req, NULL, alg->type, 1); -} - -static int spacc_aead_givencrypt(struct aead_givcrypt_request *req) -{ - struct crypto_aead *tfm = aead_givcrypt_reqtfm(req); - struct spacc_aead_ctx *ctx = crypto_aead_ctx(tfm); - size_t ivsize = crypto_aead_ivsize(tfm); - struct spacc_alg *alg = to_spacc_alg(tfm->base.__crt_alg); - unsigned len; - __be64 seq; - - memcpy(req->areq.iv, ctx->salt, ivsize); - len = ivsize; - if (ivsize > sizeof(u64)) { - memset(req->giv, 0, ivsize - sizeof(u64)); - len = sizeof(u64); - } - seq = cpu_to_be64(req->seq); - memcpy(req->giv + ivsize - len, &seq, len); - - return spacc_aead_setup(&req->areq, req->giv, alg->type, 1); + return spacc_aead_setup(req, alg->type, 1); } static int spacc_aead_decrypt(struct aead_request *req) { struct crypto_aead *aead = crypto_aead_reqtfm(req); - struct crypto_tfm *tfm = crypto_aead_tfm(aead); - struct spacc_alg *alg = to_spacc_alg(tfm->__crt_alg); + struct spacc_aead *alg = to_spacc_aead(crypto_aead_alg(aead)); - return spacc_aead_setup(req, NULL, alg->type, 0); + return spacc_aead_setup(req, alg->type, 0); } /* * Initialise a new AEAD context. This is responsible for allocating the * fallback cipher and initialising the context. */ -static int spacc_aead_cra_init(struct crypto_tfm *tfm) +static int spacc_aead_cra_init(struct crypto_aead *tfm) { - struct spacc_aead_ctx *ctx = crypto_tfm_ctx(tfm); - struct crypto_alg *alg = tfm->__crt_alg; - struct spacc_alg *spacc_alg = to_spacc_alg(alg); + struct spacc_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct aead_alg *alg = crypto_aead_alg(tfm); + struct spacc_aead *spacc_alg = to_spacc_aead(alg); struct spacc_engine *engine = spacc_alg->engine; ctx->generic.flags = spacc_alg->type; ctx->generic.engine = engine; - ctx->sw_cipher = crypto_alloc_aead(alg->cra_name, 0, - CRYPTO_ALG_ASYNC | + ctx->sw_cipher = crypto_alloc_aead(alg->base.cra_name, 0, CRYPTO_ALG_NEED_FALLBACK); - if (IS_ERR(ctx->sw_cipher)) { - dev_warn(engine->dev, "failed to allocate fallback for %s\n", - alg->cra_name); - ctx->sw_cipher = NULL; - } + if (IS_ERR(ctx->sw_cipher)) + return PTR_ERR(ctx->sw_cipher); ctx->generic.key_offs = spacc_alg->key_offs; ctx->generic.iv_offs = spacc_alg->iv_offs; - get_random_bytes(ctx->salt, sizeof(ctx->salt)); - - crypto_aead_set_reqsize(__crypto_aead_cast(tfm), - sizeof(struct spacc_req)); + crypto_aead_set_reqsize( + tfm, + max(sizeof(struct spacc_req), + sizeof(struct aead_request) + + crypto_aead_reqsize(ctx->sw_cipher))); return 0; } @@ -800,13 +712,11 @@ static int spacc_aead_cra_init(struct crypto_tfm *tfm) * Destructor for an AEAD context. This is called when the transform is freed * and must free the fallback cipher. */ -static void spacc_aead_cra_exit(struct crypto_tfm *tfm) +static void spacc_aead_cra_exit(struct crypto_aead *tfm) { - struct spacc_aead_ctx *ctx = crypto_tfm_ctx(tfm); + struct spacc_aead_ctx *ctx = crypto_aead_ctx(tfm); - if (ctx->sw_cipher) - crypto_free_aead(ctx->sw_cipher); - ctx->sw_cipher = NULL; + crypto_free_aead(ctx->sw_cipher); } /* @@ -1458,180 +1368,188 @@ static struct spacc_alg ipsec_engine_algs[] = { .cra_exit = spacc_ablk_cra_exit, }, }, +}; + +static struct spacc_aead ipsec_engine_aeads[] = { { - .ctrl_default = SPA_CTRL_CIPH_ALG_AES | SPA_CTRL_CIPH_MODE_CBC | - SPA_CTRL_HASH_ALG_SHA | SPA_CTRL_HASH_MODE_HMAC, + .ctrl_default = SPA_CTRL_CIPH_ALG_AES | + SPA_CTRL_CIPH_MODE_CBC | + SPA_CTRL_HASH_ALG_SHA | + SPA_CTRL_HASH_MODE_HMAC, .key_offs = 0, .iv_offs = AES_MAX_KEY_SIZE, .alg = { - .cra_name = "authenc(hmac(sha1),cbc(aes))", - .cra_driver_name = "authenc-hmac-sha1-cbc-aes-picoxcell", - .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_AEAD | - CRYPTO_ALG_ASYNC | - CRYPTO_ALG_KERN_DRIVER_ONLY, - .cra_blocksize = AES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct spacc_aead_ctx), - .cra_type = &crypto_aead_type, - .cra_module = THIS_MODULE, - .cra_aead = { - .setkey = spacc_aead_setkey, - .setauthsize = spacc_aead_setauthsize, - .encrypt = spacc_aead_encrypt, - .decrypt = spacc_aead_decrypt, - .givencrypt = spacc_aead_givencrypt, - .ivsize = AES_BLOCK_SIZE, - .maxauthsize = SHA1_DIGEST_SIZE, + .base = { + .cra_name = "authenc(hmac(sha1),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha1-" + "cbc-aes-picoxcell", + .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct spacc_aead_ctx), + .cra_module = THIS_MODULE, }, - .cra_init = spacc_aead_cra_init, - .cra_exit = spacc_aead_cra_exit, + .setkey = spacc_aead_setkey, + .setauthsize = spacc_aead_setauthsize, + .encrypt = spacc_aead_encrypt, + .decrypt = spacc_aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + .init = spacc_aead_cra_init, + .exit = spacc_aead_cra_exit, }, }, { - .ctrl_default = SPA_CTRL_CIPH_ALG_AES | SPA_CTRL_CIPH_MODE_CBC | + .ctrl_default = SPA_CTRL_CIPH_ALG_AES | + SPA_CTRL_CIPH_MODE_CBC | SPA_CTRL_HASH_ALG_SHA256 | SPA_CTRL_HASH_MODE_HMAC, .key_offs = 0, .iv_offs = AES_MAX_KEY_SIZE, .alg = { - .cra_name = "authenc(hmac(sha256),cbc(aes))", - .cra_driver_name = "authenc-hmac-sha256-cbc-aes-picoxcell", - .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_AEAD | - CRYPTO_ALG_ASYNC | - CRYPTO_ALG_KERN_DRIVER_ONLY, - .cra_blocksize = AES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct spacc_aead_ctx), - .cra_type = &crypto_aead_type, - .cra_module = THIS_MODULE, - .cra_aead = { - .setkey = spacc_aead_setkey, - .setauthsize = spacc_aead_setauthsize, - .encrypt = spacc_aead_encrypt, - .decrypt = spacc_aead_decrypt, - .givencrypt = spacc_aead_givencrypt, - .ivsize = AES_BLOCK_SIZE, - .maxauthsize = SHA256_DIGEST_SIZE, + .base = { + .cra_name = "authenc(hmac(sha256),cbc(aes))", + .cra_driver_name = "authenc-hmac-sha256-" + "cbc-aes-picoxcell", + .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct spacc_aead_ctx), + .cra_module = THIS_MODULE, }, - .cra_init = spacc_aead_cra_init, - .cra_exit = spacc_aead_cra_exit, + .setkey = spacc_aead_setkey, + .setauthsize = spacc_aead_setauthsize, + .encrypt = spacc_aead_encrypt, + .decrypt = spacc_aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + .init = spacc_aead_cra_init, + .exit = spacc_aead_cra_exit, }, }, { .key_offs = 0, .iv_offs = AES_MAX_KEY_SIZE, - .ctrl_default = SPA_CTRL_CIPH_ALG_AES | SPA_CTRL_CIPH_MODE_CBC | - SPA_CTRL_HASH_ALG_MD5 | SPA_CTRL_HASH_MODE_HMAC, + .ctrl_default = SPA_CTRL_CIPH_ALG_AES | + SPA_CTRL_CIPH_MODE_CBC | + SPA_CTRL_HASH_ALG_MD5 | + SPA_CTRL_HASH_MODE_HMAC, .alg = { - .cra_name = "authenc(hmac(md5),cbc(aes))", - .cra_driver_name = "authenc-hmac-md5-cbc-aes-picoxcell", - .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_AEAD | - CRYPTO_ALG_ASYNC | - CRYPTO_ALG_KERN_DRIVER_ONLY, - .cra_blocksize = AES_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct spacc_aead_ctx), - .cra_type = &crypto_aead_type, - .cra_module = THIS_MODULE, - .cra_aead = { - .setkey = spacc_aead_setkey, - .setauthsize = spacc_aead_setauthsize, - .encrypt = spacc_aead_encrypt, - .decrypt = spacc_aead_decrypt, - .givencrypt = spacc_aead_givencrypt, - .ivsize = AES_BLOCK_SIZE, - .maxauthsize = MD5_DIGEST_SIZE, + .base = { + .cra_name = "authenc(hmac(md5),cbc(aes))", + .cra_driver_name = "authenc-hmac-md5-" + "cbc-aes-picoxcell", + .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = AES_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct spacc_aead_ctx), + .cra_module = THIS_MODULE, }, - .cra_init = spacc_aead_cra_init, - .cra_exit = spacc_aead_cra_exit, + .setkey = spacc_aead_setkey, + .setauthsize = spacc_aead_setauthsize, + .encrypt = spacc_aead_encrypt, + .decrypt = spacc_aead_decrypt, + .ivsize = AES_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + .init = spacc_aead_cra_init, + .exit = spacc_aead_cra_exit, }, }, { .key_offs = DES_BLOCK_SIZE, .iv_offs = 0, - .ctrl_default = SPA_CTRL_CIPH_ALG_DES | SPA_CTRL_CIPH_MODE_CBC | - SPA_CTRL_HASH_ALG_SHA | SPA_CTRL_HASH_MODE_HMAC, + .ctrl_default = SPA_CTRL_CIPH_ALG_DES | + SPA_CTRL_CIPH_MODE_CBC | + SPA_CTRL_HASH_ALG_SHA | + SPA_CTRL_HASH_MODE_HMAC, .alg = { - .cra_name = "authenc(hmac(sha1),cbc(des3_ede))", - .cra_driver_name = "authenc-hmac-sha1-cbc-3des-picoxcell", - .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_AEAD | - CRYPTO_ALG_ASYNC | - CRYPTO_ALG_KERN_DRIVER_ONLY, - .cra_blocksize = DES3_EDE_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct spacc_aead_ctx), - .cra_type = &crypto_aead_type, - .cra_module = THIS_MODULE, - .cra_aead = { - .setkey = spacc_aead_setkey, - .setauthsize = spacc_aead_setauthsize, - .encrypt = spacc_aead_encrypt, - .decrypt = spacc_aead_decrypt, - .givencrypt = spacc_aead_givencrypt, - .ivsize = DES3_EDE_BLOCK_SIZE, - .maxauthsize = SHA1_DIGEST_SIZE, + .base = { + .cra_name = "authenc(hmac(sha1),cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha1-" + "cbc-3des-picoxcell", + .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct spacc_aead_ctx), + .cra_module = THIS_MODULE, }, - .cra_init = spacc_aead_cra_init, - .cra_exit = spacc_aead_cra_exit, + .setkey = spacc_aead_setkey, + .setauthsize = spacc_aead_setauthsize, + .encrypt = spacc_aead_encrypt, + .decrypt = spacc_aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA1_DIGEST_SIZE, + .init = spacc_aead_cra_init, + .exit = spacc_aead_cra_exit, }, }, { .key_offs = DES_BLOCK_SIZE, .iv_offs = 0, - .ctrl_default = SPA_CTRL_CIPH_ALG_AES | SPA_CTRL_CIPH_MODE_CBC | + .ctrl_default = SPA_CTRL_CIPH_ALG_AES | + SPA_CTRL_CIPH_MODE_CBC | SPA_CTRL_HASH_ALG_SHA256 | SPA_CTRL_HASH_MODE_HMAC, .alg = { - .cra_name = "authenc(hmac(sha256),cbc(des3_ede))", - .cra_driver_name = "authenc-hmac-sha256-cbc-3des-picoxcell", - .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_AEAD | - CRYPTO_ALG_ASYNC | - CRYPTO_ALG_KERN_DRIVER_ONLY, - .cra_blocksize = DES3_EDE_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct spacc_aead_ctx), - .cra_type = &crypto_aead_type, - .cra_module = THIS_MODULE, - .cra_aead = { - .setkey = spacc_aead_setkey, - .setauthsize = spacc_aead_setauthsize, - .encrypt = spacc_aead_encrypt, - .decrypt = spacc_aead_decrypt, - .givencrypt = spacc_aead_givencrypt, - .ivsize = DES3_EDE_BLOCK_SIZE, - .maxauthsize = SHA256_DIGEST_SIZE, + .base = { + .cra_name = "authenc(hmac(sha256)," + "cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-sha256-" + "cbc-3des-picoxcell", + .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct spacc_aead_ctx), + .cra_module = THIS_MODULE, }, - .cra_init = spacc_aead_cra_init, - .cra_exit = spacc_aead_cra_exit, + .setkey = spacc_aead_setkey, + .setauthsize = spacc_aead_setauthsize, + .encrypt = spacc_aead_encrypt, + .decrypt = spacc_aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = SHA256_DIGEST_SIZE, + .init = spacc_aead_cra_init, + .exit = spacc_aead_cra_exit, }, }, { .key_offs = DES_BLOCK_SIZE, .iv_offs = 0, - .ctrl_default = SPA_CTRL_CIPH_ALG_DES | SPA_CTRL_CIPH_MODE_CBC | - SPA_CTRL_HASH_ALG_MD5 | SPA_CTRL_HASH_MODE_HMAC, + .ctrl_default = SPA_CTRL_CIPH_ALG_DES | + SPA_CTRL_CIPH_MODE_CBC | + SPA_CTRL_HASH_ALG_MD5 | + SPA_CTRL_HASH_MODE_HMAC, .alg = { - .cra_name = "authenc(hmac(md5),cbc(des3_ede))", - .cra_driver_name = "authenc-hmac-md5-cbc-3des-picoxcell", - .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, - .cra_flags = CRYPTO_ALG_TYPE_AEAD | - CRYPTO_ALG_ASYNC | - CRYPTO_ALG_KERN_DRIVER_ONLY, - .cra_blocksize = DES3_EDE_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct spacc_aead_ctx), - .cra_type = &crypto_aead_type, - .cra_module = THIS_MODULE, - .cra_aead = { - .setkey = spacc_aead_setkey, - .setauthsize = spacc_aead_setauthsize, - .encrypt = spacc_aead_encrypt, - .decrypt = spacc_aead_decrypt, - .givencrypt = spacc_aead_givencrypt, - .ivsize = DES3_EDE_BLOCK_SIZE, - .maxauthsize = MD5_DIGEST_SIZE, + .base = { + .cra_name = "authenc(hmac(md5),cbc(des3_ede))", + .cra_driver_name = "authenc-hmac-md5-" + "cbc-3des-picoxcell", + .cra_priority = SPACC_CRYPTO_ALG_PRIORITY, + .cra_flags = CRYPTO_ALG_ASYNC | + CRYPTO_ALG_NEED_FALLBACK | + CRYPTO_ALG_KERN_DRIVER_ONLY, + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_ctxsize = sizeof(struct spacc_aead_ctx), + .cra_module = THIS_MODULE, }, - .cra_init = spacc_aead_cra_init, - .cra_exit = spacc_aead_cra_exit, + .setkey = spacc_aead_setkey, + .setauthsize = spacc_aead_setauthsize, + .encrypt = spacc_aead_encrypt, + .decrypt = spacc_aead_decrypt, + .ivsize = DES3_EDE_BLOCK_SIZE, + .maxauthsize = MD5_DIGEST_SIZE, + .init = spacc_aead_cra_init, + .exit = spacc_aead_cra_exit, }, }, }; @@ -1707,6 +1625,8 @@ static int spacc_probe(struct platform_device *pdev) engine->fifo_sz = SPACC_CRYPTO_IPSEC_FIFO_SZ; engine->algs = ipsec_engine_algs; engine->num_algs = ARRAY_SIZE(ipsec_engine_algs); + engine->aeads = ipsec_engine_aeads; + engine->num_aeads = ARRAY_SIZE(ipsec_engine_aeads); } else if (spacc_is_compatible(pdev, "picochip,spacc-l2")) { engine->max_ctxs = SPACC_CRYPTO_L2_MAX_CTXS; engine->cipher_pg_sz = SPACC_CRYPTO_L2_CIPHER_PG_SZ; @@ -1815,17 +1735,40 @@ static int spacc_probe(struct platform_device *pdev) engine->algs[i].alg.cra_name); } + INIT_LIST_HEAD(&engine->registered_aeads); + for (i = 0; i < engine->num_aeads; ++i) { + engine->aeads[i].engine = engine; + err = crypto_register_aead(&engine->aeads[i].alg); + if (!err) { + list_add_tail(&engine->aeads[i].entry, + &engine->registered_aeads); + ret = 0; + } + if (err) + dev_err(engine->dev, "failed to register alg \"%s\"\n", + engine->aeads[i].alg.base.cra_name); + else + dev_dbg(engine->dev, "registered alg \"%s\"\n", + engine->aeads[i].alg.base.cra_name); + } + return ret; } static int spacc_remove(struct platform_device *pdev) { + struct spacc_aead *aead, *an; struct spacc_alg *alg, *next; struct spacc_engine *engine = platform_get_drvdata(pdev); del_timer_sync(&engine->packet_timeout); device_remove_file(&pdev->dev, &dev_attr_stat_irq_thresh); + list_for_each_entry_safe(aead, an, &engine->registered_aeads, entry) { + list_del(&aead->entry); + crypto_unregister_aead(&aead->alg); + } + list_for_each_entry_safe(alg, next, &engine->registered_algs, entry) { list_del(&alg->entry); crypto_unregister_alg(&alg->alg); |