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authorLee Nipper <lee.nipper@gmail.com>2010-05-19 19:20:36 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2010-05-19 19:20:36 +1000
commit497f2e6b8b21407625a4fb34bc04b50eff098085 (patch)
tree80a85aa925491e21253b41b5587712e116e712c9 /drivers/crypto/talitos.c
parentacbf7c627fb59dfea975f7aafeaba97921085061 (diff)
downloadlinux-linaro-stable-497f2e6b8b21407625a4fb34bc04b50eff098085.tar.gz
crypto: talitos - add hash algorithms
Add the following alorithms to talitos: md5, sha1, sha256, sha384, sha512. These are all type ahash. Signed-off-by: Lee Nipper <lee.nipper@gmail.com> Acked-By: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/talitos.c')
-rw-r--r--drivers/crypto/talitos.c544
1 files changed, 526 insertions, 18 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 4e8153a839a4..1b08a3951fb4 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -43,6 +43,7 @@
#include <crypto/aes.h>
#include <crypto/des.h>
#include <crypto/sha.h>
+#include <crypto/md5.h>
#include <crypto/aead.h>
#include <crypto/authenc.h>
#include <crypto/skcipher.h>
@@ -67,6 +68,13 @@ struct talitos_ptr {
__be32 ptr; /* address */
};
+static const struct talitos_ptr zero_entry = {
+ .len = 0,
+ .j_extent = 0,
+ .eptr = 0,
+ .ptr = 0
+};
+
/* descriptor */
struct talitos_desc {
__be32 hdr; /* header high bits */
@@ -694,7 +702,7 @@ static void talitos_unregister_rng(struct device *dev)
#define TALITOS_MAX_KEY_SIZE 64
#define TALITOS_MAX_IV_LENGTH 16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
-#define MD5_DIGEST_SIZE 16
+#define MD5_BLOCK_SIZE 64
struct talitos_ctx {
struct device *dev;
@@ -707,6 +715,22 @@ struct talitos_ctx {
unsigned int authsize;
};
+#define HASH_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
+#define TALITOS_MDEU_MAX_CONTEXT_SIZE TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512
+
+struct talitos_ahash_req_ctx {
+ u64 count;
+ u8 hw_context[TALITOS_MDEU_MAX_CONTEXT_SIZE];
+ unsigned int hw_context_size;
+ u8 buf[HASH_MAX_BLOCK_SIZE];
+ u8 bufnext[HASH_MAX_BLOCK_SIZE];
+ unsigned int first;
+ unsigned int last;
+ unsigned int to_hash_later;
+ struct scatterlist bufsl[2];
+ struct scatterlist *psrc;
+};
+
static int aead_setauthsize(struct crypto_aead *authenc,
unsigned int authsize)
{
@@ -823,10 +847,14 @@ static void talitos_sg_unmap(struct device *dev,
else
dma_unmap_sg(dev, src, src_nents, DMA_TO_DEVICE);
- if (edesc->dst_is_chained)
- talitos_unmap_sg_chain(dev, dst, DMA_FROM_DEVICE);
- else
- dma_unmap_sg(dev, dst, dst_nents, DMA_FROM_DEVICE);
+ if (dst) {
+ if (edesc->dst_is_chained)
+ talitos_unmap_sg_chain(dev, dst,
+ DMA_FROM_DEVICE);
+ else
+ dma_unmap_sg(dev, dst, dst_nents,
+ DMA_FROM_DEVICE);
+ }
} else
if (edesc->src_is_chained)
talitos_unmap_sg_chain(dev, src, DMA_BIDIRECTIONAL);
@@ -1116,12 +1144,67 @@ static int sg_count(struct scatterlist *sg_list, int nbytes, int *chained)
return sg_nents;
}
+/**
+ * sg_copy_end_to_buffer - Copy end data from SG list to a linear buffer
+ * @sgl: The SG list
+ * @nents: Number of SG entries
+ * @buf: Where to copy to
+ * @buflen: The number of bytes to copy
+ * @skip: The number of bytes to skip before copying.
+ * Note: skip + buflen should equal SG total size.
+ *
+ * Returns the number of copied bytes.
+ *
+ **/
+static size_t sg_copy_end_to_buffer(struct scatterlist *sgl, unsigned int nents,
+ void *buf, size_t buflen, unsigned int skip)
+{
+ unsigned int offset = 0;
+ unsigned int boffset = 0;
+ struct sg_mapping_iter miter;
+ unsigned long flags;
+ unsigned int sg_flags = SG_MITER_ATOMIC;
+ size_t total_buffer = buflen + skip;
+
+ sg_flags |= SG_MITER_FROM_SG;
+
+ sg_miter_start(&miter, sgl, nents, sg_flags);
+
+ local_irq_save(flags);
+
+ while (sg_miter_next(&miter) && offset < total_buffer) {
+ unsigned int len;
+ unsigned int ignore;
+
+ if ((offset + miter.length) > skip) {
+ if (offset < skip) {
+ /* Copy part of this segment */
+ ignore = skip - offset;
+ len = miter.length - ignore;
+ memcpy(buf + boffset, miter.addr + ignore, len);
+ } else {
+ /* Copy all of this segment */
+ len = miter.length;
+ memcpy(buf + boffset, miter.addr, len);
+ }
+ boffset += len;
+ }
+ offset += miter.length;
+ }
+
+ sg_miter_stop(&miter);
+
+ local_irq_restore(flags);
+ return boffset;
+}
+
/*
* allocate and map the extended descriptor
*/
static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
struct scatterlist *src,
struct scatterlist *dst,
+ int hash_result,
unsigned int cryptlen,
unsigned int authsize,
int icv_stashing,
@@ -1141,11 +1224,16 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
src_nents = sg_count(src, cryptlen + authsize, &src_chained);
src_nents = (src_nents == 1) ? 0 : src_nents;
- if (dst == src) {
- dst_nents = src_nents;
+ if (hash_result) {
+ dst_nents = 0;
} else {
- dst_nents = sg_count(dst, cryptlen + authsize, &dst_chained);
- dst_nents = (dst_nents == 1) ? 0 : dst_nents;
+ if (dst == src) {
+ dst_nents = src_nents;
+ } else {
+ dst_nents = sg_count(dst, cryptlen + authsize,
+ &dst_chained);
+ dst_nents = (dst_nents == 1) ? 0 : dst_nents;
+ }
}
/*
@@ -1174,8 +1262,10 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
edesc->src_is_chained = src_chained;
edesc->dst_is_chained = dst_chained;
edesc->dma_len = dma_len;
- edesc->dma_link_tbl = dma_map_single(dev, &edesc->link_tbl[0],
- edesc->dma_len, DMA_BIDIRECTIONAL);
+ if (dma_len)
+ edesc->dma_link_tbl = dma_map_single(dev, &edesc->link_tbl[0],
+ edesc->dma_len,
+ DMA_BIDIRECTIONAL);
return edesc;
}
@@ -1186,7 +1276,7 @@ static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq,
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
- return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst,
+ return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst, 0,
areq->cryptlen, ctx->authsize, icv_stashing,
areq->base.flags);
}
@@ -1443,8 +1533,8 @@ static struct talitos_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request *
struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
- return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst, areq->nbytes,
- 0, 0, areq->base.flags);
+ return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst, 0,
+ areq->nbytes, 0, 0, areq->base.flags);
}
static int ablkcipher_encrypt(struct ablkcipher_request *areq)
@@ -1480,6 +1570,286 @@ static int ablkcipher_decrypt(struct ablkcipher_request *areq)
return common_nonsnoop(edesc, areq, NULL, ablkcipher_done);
}
+static void common_nonsnoop_hash_unmap(struct device *dev,
+ struct talitos_edesc *edesc,
+ struct ahash_request *areq)
+{
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+
+ unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE);
+
+ /* When using hashctx-in, must unmap it. */
+ if (edesc->desc.ptr[1].len)
+ unmap_single_talitos_ptr(dev, &edesc->desc.ptr[1],
+ DMA_TO_DEVICE);
+
+ if (edesc->desc.ptr[2].len)
+ unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2],
+ DMA_TO_DEVICE);
+
+ talitos_sg_unmap(dev, edesc, req_ctx->psrc, NULL);
+
+ if (edesc->dma_len)
+ dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len,
+ DMA_BIDIRECTIONAL);
+
+}
+
+static void ahash_done(struct device *dev,
+ struct talitos_desc *desc, void *context,
+ int err)
+{
+ struct ahash_request *areq = context;
+ struct talitos_edesc *edesc =
+ container_of(desc, struct talitos_edesc, desc);
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+
+ if (!req_ctx->last && req_ctx->to_hash_later) {
+ /* Position any partial block for next update/final/finup */
+ memcpy(req_ctx->buf, req_ctx->bufnext, req_ctx->to_hash_later);
+ }
+ common_nonsnoop_hash_unmap(dev, edesc, areq);
+
+ kfree(edesc);
+
+ areq->base.complete(&areq->base, err);
+}
+
+static int common_nonsnoop_hash(struct talitos_edesc *edesc,
+ struct ahash_request *areq, unsigned int length,
+ void (*callback) (struct device *dev,
+ struct talitos_desc *desc,
+ void *context, int error))
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+ struct device *dev = ctx->dev;
+ struct talitos_desc *desc = &edesc->desc;
+ int sg_count, ret;
+
+ /* first DWORD empty */
+ desc->ptr[0] = zero_entry;
+
+ /* hash context in (if not first) */
+ if (!req_ctx->first) {
+ map_single_talitos_ptr(dev, &desc->ptr[1],
+ req_ctx->hw_context_size,
+ (char *)req_ctx->hw_context, 0,
+ DMA_TO_DEVICE);
+ } else {
+ desc->ptr[1] = zero_entry;
+ /* Indicate next op is not the first. */
+ req_ctx->first = 0;
+ }
+
+ /* HMAC key */
+ if (ctx->keylen)
+ map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen,
+ (char *)&ctx->key, 0, DMA_TO_DEVICE);
+ else
+ desc->ptr[2] = zero_entry;
+
+ /*
+ * data in
+ */
+ desc->ptr[3].len = cpu_to_be16(length);
+ desc->ptr[3].j_extent = 0;
+
+ sg_count = talitos_map_sg(dev, req_ctx->psrc,
+ edesc->src_nents ? : 1,
+ DMA_TO_DEVICE,
+ edesc->src_is_chained);
+
+ if (sg_count == 1) {
+ to_talitos_ptr(&desc->ptr[3], sg_dma_address(req_ctx->psrc));
+ } else {
+ sg_count = sg_to_link_tbl(req_ctx->psrc, sg_count, length,
+ &edesc->link_tbl[0]);
+ if (sg_count > 1) {
+ desc->ptr[3].j_extent |= DESC_PTR_LNKTBL_JUMP;
+ to_talitos_ptr(&desc->ptr[3], edesc->dma_link_tbl);
+ dma_sync_single_for_device(ctx->dev,
+ edesc->dma_link_tbl,
+ edesc->dma_len,
+ DMA_BIDIRECTIONAL);
+ } else {
+ /* Only one segment now, so no link tbl needed */
+ to_talitos_ptr(&desc->ptr[3],
+ sg_dma_address(req_ctx->psrc));
+ }
+ }
+
+ /* fifth DWORD empty */
+ desc->ptr[4] = zero_entry;
+
+ /* hash/HMAC out -or- hash context out */
+ if (req_ctx->last)
+ map_single_talitos_ptr(dev, &desc->ptr[5],
+ crypto_ahash_digestsize(tfm),
+ areq->result, 0, DMA_FROM_DEVICE);
+ else
+ map_single_talitos_ptr(dev, &desc->ptr[5],
+ req_ctx->hw_context_size,
+ req_ctx->hw_context, 0, DMA_FROM_DEVICE);
+
+ /* last DWORD empty */
+ desc->ptr[6] = zero_entry;
+
+ ret = talitos_submit(dev, desc, callback, areq);
+ if (ret != -EINPROGRESS) {
+ common_nonsnoop_hash_unmap(dev, edesc, areq);
+ kfree(edesc);
+ }
+ return ret;
+}
+
+static struct talitos_edesc *ahash_edesc_alloc(struct ahash_request *areq,
+ unsigned int nbytes)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+
+ return talitos_edesc_alloc(ctx->dev, req_ctx->psrc, NULL, 1,
+ nbytes, 0, 0, areq->base.flags);
+}
+
+static int ahash_init(struct ahash_request *areq)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+
+ /* Initialize the context */
+ req_ctx->count = 0;
+ req_ctx->first = 1; /* first indicates h/w must init it's context */
+ req_ctx->hw_context_size =
+ (crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE)
+ ? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256
+ : TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512;
+
+ return 0;
+}
+
+static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+ struct talitos_edesc *edesc;
+ unsigned int blocksize =
+ crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
+ unsigned int nbytes_to_hash;
+ unsigned int to_hash_later;
+ unsigned int index;
+ int chained;
+
+ index = req_ctx->count & (blocksize - 1);
+ req_ctx->count += nbytes;
+
+ if (!req_ctx->last && (index + nbytes) < blocksize) {
+ /* Buffer the partial block */
+ sg_copy_to_buffer(areq->src,
+ sg_count(areq->src, nbytes, &chained),
+ req_ctx->buf + index, nbytes);
+ return 0;
+ }
+
+ if (index) {
+ /* partial block from previous update; chain it in. */
+ sg_init_table(req_ctx->bufsl, (nbytes) ? 2 : 1);
+ sg_set_buf(req_ctx->bufsl, req_ctx->buf, index);
+ if (nbytes)
+ scatterwalk_sg_chain(req_ctx->bufsl, 2,
+ areq->src);
+ req_ctx->psrc = req_ctx->bufsl;
+ } else {
+ req_ctx->psrc = areq->src;
+ }
+ nbytes_to_hash = index + nbytes;
+ if (!req_ctx->last) {
+ to_hash_later = (nbytes_to_hash & (blocksize - 1));
+ if (to_hash_later) {
+ int nents;
+ /* Must copy to_hash_later bytes from the end
+ * to bufnext (a partial block) for later.
+ */
+ nents = sg_count(areq->src, nbytes, &chained);
+ sg_copy_end_to_buffer(areq->src, nents,
+ req_ctx->bufnext,
+ to_hash_later,
+ nbytes - to_hash_later);
+
+ /* Adjust count for what will be hashed now */
+ nbytes_to_hash -= to_hash_later;
+ }
+ req_ctx->to_hash_later = to_hash_later;
+ }
+
+ /* allocate extended descriptor */
+ edesc = ahash_edesc_alloc(areq, nbytes_to_hash);
+ if (IS_ERR(edesc))
+ return PTR_ERR(edesc);
+
+ edesc->desc.hdr = ctx->desc_hdr_template;
+
+ /* On last one, request SEC to pad; otherwise continue */
+ if (req_ctx->last)
+ edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_PAD;
+ else
+ edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_CONT;
+
+ /* On first one, request SEC to INIT hash. */
+ if (req_ctx->first)
+ edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_INIT;
+
+ /* When the tfm context has a keylen, it's an HMAC.
+ * A first or last (ie. not middle) descriptor must request HMAC.
+ */
+ if (ctx->keylen && (req_ctx->first || req_ctx->last))
+ edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_HMAC;
+
+ return common_nonsnoop_hash(edesc, areq, nbytes_to_hash,
+ ahash_done);
+}
+
+static int ahash_update(struct ahash_request *areq)
+{
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+
+ req_ctx->last = 0;
+
+ return ahash_process_req(areq, areq->nbytes);
+}
+
+static int ahash_final(struct ahash_request *areq)
+{
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+
+ req_ctx->last = 1;
+
+ return ahash_process_req(areq, 0);
+}
+
+static int ahash_finup(struct ahash_request *areq)
+{
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+
+ req_ctx->last = 1;
+
+ return ahash_process_req(areq, areq->nbytes);
+}
+
+static int ahash_digest(struct ahash_request *areq)
+{
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+
+ ahash_init(areq);
+ req_ctx->last = 1;
+
+ return ahash_process_req(areq, areq->nbytes);
+}
+
struct talitos_alg_template {
u32 type;
union {
@@ -1695,7 +2065,113 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_SEL0_DEU |
DESC_HDR_MODE0_DEU_CBC |
DESC_HDR_MODE0_DEU_3DES,
- }
+ },
+ /* AHASH algorithms. */
+ { .type = CRYPTO_ALG_TYPE_AHASH,
+ .alg.hash = {
+ .init = ahash_init,
+ .update = ahash_update,
+ .final = ahash_final,
+ .finup = ahash_finup,
+ .digest = ahash_digest,
+ .halg.digestsize = MD5_DIGEST_SIZE,
+ .halg.base = {
+ .cra_name = "md5",
+ .cra_driver_name = "md5-talitos",
+ .cra_blocksize = MD5_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_ahash_type
+ }
+ },
+ .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
+ DESC_HDR_SEL0_MDEUA |
+ DESC_HDR_MODE0_MDEU_MD5,
+ },
+ { .type = CRYPTO_ALG_TYPE_AHASH,
+ .alg.hash = {
+ .init = ahash_init,
+ .update = ahash_update,
+ .final = ahash_final,
+ .finup = ahash_finup,
+ .digest = ahash_digest,
+ .halg.digestsize = SHA1_DIGEST_SIZE,
+ .halg.base = {
+ .cra_name = "sha1",
+ .cra_driver_name = "sha1-talitos",
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_ahash_type
+ }
+ },
+ .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
+ DESC_HDR_SEL0_MDEUA |
+ DESC_HDR_MODE0_MDEU_SHA1,
+ },
+ { .type = CRYPTO_ALG_TYPE_AHASH,
+ .alg.hash = {
+ .init = ahash_init,
+ .update = ahash_update,
+ .final = ahash_final,
+ .finup = ahash_finup,
+ .digest = ahash_digest,
+ .halg.digestsize = SHA256_DIGEST_SIZE,
+ .halg.base = {
+ .cra_name = "sha256",
+ .cra_driver_name = "sha256-talitos",
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_ahash_type
+ }
+ },
+ .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
+ DESC_HDR_SEL0_MDEUA |
+ DESC_HDR_MODE0_MDEU_SHA256,
+ },
+ { .type = CRYPTO_ALG_TYPE_AHASH,
+ .alg.hash = {
+ .init = ahash_init,
+ .update = ahash_update,
+ .final = ahash_final,
+ .finup = ahash_finup,
+ .digest = ahash_digest,
+ .halg.digestsize = SHA384_DIGEST_SIZE,
+ .halg.base = {
+ .cra_name = "sha384",
+ .cra_driver_name = "sha384-talitos",
+ .cra_blocksize = SHA384_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_ahash_type
+ }
+ },
+ .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
+ DESC_HDR_SEL0_MDEUB |
+ DESC_HDR_MODE0_MDEUB_SHA384,
+ },
+ { .type = CRYPTO_ALG_TYPE_AHASH,
+ .alg.hash = {
+ .init = ahash_init,
+ .update = ahash_update,
+ .final = ahash_final,
+ .finup = ahash_finup,
+ .digest = ahash_digest,
+ .halg.digestsize = SHA512_DIGEST_SIZE,
+ .halg.base = {
+ .cra_name = "sha512",
+ .cra_driver_name = "sha512-talitos",
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC,
+ .cra_type = &crypto_ahash_type
+ }
+ },
+ .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
+ DESC_HDR_SEL0_MDEUB |
+ DESC_HDR_MODE0_MDEUB_SHA512,
+ },
};
struct talitos_crypto_alg {
@@ -1710,8 +2186,13 @@ static int talitos_cra_init(struct crypto_tfm *tfm)
struct talitos_crypto_alg *talitos_alg;
struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
- talitos_alg = container_of(alg, struct talitos_crypto_alg,
- algt.alg.crypto);
+ if ((alg->cra_flags & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_AHASH)
+ talitos_alg = container_of(__crypto_ahash_alg(alg),
+ struct talitos_crypto_alg,
+ algt.alg.hash);
+ else
+ talitos_alg = container_of(alg, struct talitos_crypto_alg,
+ algt.alg.crypto);
/* update context with ptr to dev */
ctx->dev = talitos_alg->dev;
@@ -1719,12 +2200,34 @@ static int talitos_cra_init(struct crypto_tfm *tfm)
/* copy descriptor header template value */
ctx->desc_hdr_template = talitos_alg->algt.desc_hdr_template;
+ return 0;
+}
+
+static int talitos_cra_init_aead(struct crypto_tfm *tfm)
+{
+ struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ talitos_cra_init(tfm);
+
/* random first IV */
get_random_bytes(ctx->iv, TALITOS_MAX_IV_LENGTH);
return 0;
}
+static int talitos_cra_init_ahash(struct crypto_tfm *tfm)
+{
+ struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ talitos_cra_init(tfm);
+
+ ctx->keylen = 0;
+ crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+ sizeof(struct talitos_ahash_req_ctx));
+
+ return 0;
+}
+
/*
* given the alg's descriptor header template, determine whether descriptor
* type and primary/secondary execution units required match the hw
@@ -1806,15 +2309,20 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
switch (t_alg->algt.type) {
case CRYPTO_ALG_TYPE_ABLKCIPHER:
+ alg = &t_alg->algt.alg.crypto;
+ alg->cra_init = talitos_cra_init;
+ break;
case CRYPTO_ALG_TYPE_AEAD:
alg = &t_alg->algt.alg.crypto;
+ alg->cra_init = talitos_cra_init_aead;
break;
case CRYPTO_ALG_TYPE_AHASH:
alg = &t_alg->algt.alg.hash.halg.base;
+ alg->cra_init = talitos_cra_init_ahash;
+ break;
}
alg->cra_module = THIS_MODULE;
- alg->cra_init = talitos_cra_init;
alg->cra_priority = TALITOS_CRA_PRIORITY;
alg->cra_alignmask = 0;
alg->cra_ctxsize = sizeof(struct talitos_ctx);