diff options
Diffstat (limited to 'drivers/crypto/talitos.c')
| -rw-r--r-- | drivers/crypto/talitos.c | 124 |
1 files changed, 117 insertions, 7 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index b6f9f42e2985..a0d4a08313ae 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -1216,6 +1216,7 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev, struct talitos_private *priv = dev_get_drvdata(dev); bool is_sec1 = has_ftr_sec1(priv); int max_len = is_sec1 ? TALITOS1_MAX_DATA_LEN : TALITOS2_MAX_DATA_LEN; + void *err; if (cryptlen + authsize > max_len) { dev_err(dev, "length exceeds h/w max limit\n"); @@ -1228,14 +1229,29 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev, if (!dst || dst == src) { src_nents = sg_nents_for_len(src, assoclen + cryptlen + authsize); + if (src_nents < 0) { + dev_err(dev, "Invalid number of src SG.\n"); + err = ERR_PTR(-EINVAL); + goto error_sg; + } src_nents = (src_nents == 1) ? 0 : src_nents; dst_nents = dst ? src_nents : 0; } else { /* dst && dst != src*/ src_nents = sg_nents_for_len(src, assoclen + cryptlen + (encrypt ? 0 : authsize)); + if (src_nents < 0) { + dev_err(dev, "Invalid number of src SG.\n"); + err = ERR_PTR(-EINVAL); + goto error_sg; + } src_nents = (src_nents == 1) ? 0 : src_nents; dst_nents = sg_nents_for_len(dst, assoclen + cryptlen + (encrypt ? authsize : 0)); + if (dst_nents < 0) { + dev_err(dev, "Invalid number of dst SG.\n"); + err = ERR_PTR(-EINVAL); + goto error_sg; + } dst_nents = (dst_nents == 1) ? 0 : dst_nents; } @@ -1260,11 +1276,9 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev, edesc = kmalloc(alloc_len, GFP_DMA | flags); if (!edesc) { - if (iv_dma) - dma_unmap_single(dev, iv_dma, ivsize, DMA_TO_DEVICE); - dev_err(dev, "could not allocate edescriptor\n"); - return ERR_PTR(-ENOMEM); + err = ERR_PTR(-ENOMEM); + goto error_sg; } edesc->src_nents = src_nents; @@ -1277,6 +1291,10 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev, DMA_BIDIRECTIONAL); return edesc; +error_sg: + if (iv_dma) + dma_unmap_single(dev, iv_dma, ivsize, DMA_TO_DEVICE); + return err; } static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq, u8 *iv, @@ -1830,11 +1848,16 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes) unsigned int nbytes_to_hash; unsigned int to_hash_later; unsigned int nsg; + int nents; if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) { /* Buffer up to one whole block */ - sg_copy_to_buffer(areq->src, - sg_nents_for_len(areq->src, nbytes), + nents = sg_nents_for_len(areq->src, nbytes); + if (nents < 0) { + dev_err(ctx->dev, "Invalid number of src SG.\n"); + return nents; + } + sg_copy_to_buffer(areq->src, nents, req_ctx->buf + req_ctx->nbuf, nbytes); req_ctx->nbuf += nbytes; return 0; @@ -1867,7 +1890,11 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes) req_ctx->psrc = areq->src; if (to_hash_later) { - int nents = sg_nents_for_len(areq->src, nbytes); + nents = sg_nents_for_len(areq->src, nbytes); + if (nents < 0) { + dev_err(ctx->dev, "Invalid number of src SG.\n"); + return nents; + } sg_pcopy_to_buffer(areq->src, nents, req_ctx->bufnext, to_hash_later, @@ -2297,6 +2324,22 @@ static struct talitos_alg_template driver_algs[] = { /* ABLKCIPHER algorithms. */ { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .alg.crypto = { + .cra_name = "ecb(aes)", + .cra_driver_name = "ecb-aes-talitos", + .cra_blocksize = AES_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | + CRYPTO_ALG_ASYNC, + .cra_ablkcipher = { + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + } + }, + .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | + DESC_HDR_SEL0_AESU, + }, + { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, + .alg.crypto = { .cra_name = "cbc(aes)", .cra_driver_name = "cbc-aes-talitos", .cra_blocksize = AES_BLOCK_SIZE, @@ -2314,6 +2357,73 @@ static struct talitos_alg_template driver_algs[] = { }, { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .alg.crypto = { + .cra_name = "ctr(aes)", + .cra_driver_name = "ctr-aes-talitos", + .cra_blocksize = AES_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | + CRYPTO_ALG_ASYNC, + .cra_ablkcipher = { + .min_keysize = AES_MIN_KEY_SIZE, + .max_keysize = AES_MAX_KEY_SIZE, + .ivsize = AES_BLOCK_SIZE, + } + }, + .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | + DESC_HDR_SEL0_AESU | + DESC_HDR_MODE0_AESU_CTR, + }, + { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, + .alg.crypto = { + .cra_name = "ecb(des)", + .cra_driver_name = "ecb-des-talitos", + .cra_blocksize = DES_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | + CRYPTO_ALG_ASYNC, + .cra_ablkcipher = { + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + .ivsize = DES_BLOCK_SIZE, + } + }, + .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | + DESC_HDR_SEL0_DEU, + }, + { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, + .alg.crypto = { + .cra_name = "cbc(des)", + .cra_driver_name = "cbc-des-talitos", + .cra_blocksize = DES_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | + CRYPTO_ALG_ASYNC, + .cra_ablkcipher = { + .min_keysize = DES_KEY_SIZE, + .max_keysize = DES_KEY_SIZE, + .ivsize = DES_BLOCK_SIZE, + } + }, + .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | + DESC_HDR_SEL0_DEU | + DESC_HDR_MODE0_DEU_CBC, + }, + { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, + .alg.crypto = { + .cra_name = "ecb(des3_ede)", + .cra_driver_name = "ecb-3des-talitos", + .cra_blocksize = DES3_EDE_BLOCK_SIZE, + .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | + CRYPTO_ALG_ASYNC, + .cra_ablkcipher = { + .min_keysize = DES3_EDE_KEY_SIZE, + .max_keysize = DES3_EDE_KEY_SIZE, + .ivsize = DES3_EDE_BLOCK_SIZE, + } + }, + .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU | + DESC_HDR_SEL0_DEU | + DESC_HDR_MODE0_DEU_3DES, + }, + { .type = CRYPTO_ALG_TYPE_ABLKCIPHER, + .alg.crypto = { .cra_name = "cbc(des3_ede)", .cra_driver_name = "cbc-3des-talitos", .cra_blocksize = DES3_EDE_BLOCK_SIZE, |