/**
* Calculate hash digest for the passed buffer.
*
* This should be used when computing the hash on a single contiguous buffer.
* It combines the hash initialization, computation, and cleanup.
*
* \param[in] hash_alg id of hash algorithm (CFS_HASH_ALG_*)
* \param[in] buf data buffer on which to compute hash
* \param[in] buf_len length of \a buf in bytes
* \param[in] key initial value/state for algorithm, if \a key = NULL
* use default initial value
* \param[in] key_len length of \a key in bytes
* \param[out] hash pointer to computed hash value, if \a hash = NULL then
* \a hash_len is to digest size in bytes, retval -ENOSPC
* \param[in,out] hash_len size of \a hash buffer
*
* \retval -EINVAL \a buf, \a buf_len, \a hash_len, \a hash_alg invalid
* \retval -ENOENT \a hash_alg is unsupported
* \retval -ENOSPC \a hash is NULL, or \a hash_len less than digest size
* \retval 0 for success
* \retval negative errno for other errors from lower layers.
*/
int cfs_crypto_hash_digest(enum cfs_crypto_hash_alg hash_alg,
const void *buf, unsigned int buf_len,
unsigned char *key, unsigned int key_len,
unsigned char *hash, unsigned int *hash_len)
{
struct scatterlist sl;
struct ahash_request *req;
int err;
const struct cfs_crypto_hash_type *type;
if (!buf || buf_len == 0 || !hash_len)
return -EINVAL;
err = cfs_crypto_hash_alloc(hash_alg, &type, &req, key, key_len);
if (err != 0)
return err;
if (!hash || *hash_len < type->cht_size) {
*hash_len = type->cht_size;
crypto_free_ahash(crypto_ahash_reqtfm(req));
ahash_request_free(req);
return -ENOSPC;
}
sg_init_one(&sl, (void *)buf, buf_len);
ahash_request_set_crypt(req, &sl, hash, sl.length);
err = crypto_ahash_digest(req);
crypto_free_ahash(crypto_ahash_reqtfm(req));
ahash_request_free(req);
return err;
}
/**
* Finish hash calculation, copy hash digest to buffer, clean up hash descriptor
*
* \param[in] req ahash request
* \param[out] hash pointer to hash buffer to store hash digest
* \param[in,out] hash_len pointer to hash buffer size, if \a hash == NULL
* or hash_len == NULL only free \a hdesc instead
* of computing the hash
*
* \retval 0 for success
* \retval -EOVERFLOW if hash_len is too small for the hash digest
* \retval negative errno for other errors from lower layers
*/
int cfs_crypto_hash_final(struct ahash_request *req,
unsigned char *hash, unsigned int *hash_len)
{
int size = crypto_ahash_digestsize(crypto_ahash_reqtfm(req));
int err;
if (!hash || !hash_len) {
err = 0;
goto free;
}
if (*hash_len < size) {
err = -EOVERFLOW;
goto free;
}
ahash_request_set_crypt(req, NULL, hash, 0);
err = crypto_ahash_final(req);
if (err == 0)
*hash_len = size;
free:
crypto_free_ahash(crypto_ahash_reqtfm(req));
ahash_request_free(req);
return err;
}
static void mv_cesa_ahash_complete(struct crypto_async_request *req)
{
struct ahash_request *ahashreq = ahash_request_cast(req);
struct mv_cesa_ahash_req *creq = ahash_request_ctx(ahashreq);
struct mv_cesa_engine *engine = creq->base.engine;
unsigned int digsize;
int i;
digsize = crypto_ahash_digestsize(crypto_ahash_reqtfm(ahashreq));
for (i = 0; i < digsize / 4; i++)
creq->state[i] = readl_relaxed(engine->regs + CESA_IVDIG(i));
if (creq->last_req) {
/*
* Hardware's MD5 digest is in little endian format, but
* SHA in big endian format
*/
if (creq->algo_le) {
__le32 *result = (void *)ahashreq->result;
for (i = 0; i < digsize / 4; i++)
result[i] = cpu_to_le32(creq->state[i]);
} else {
__be32 *result = (void *)ahashreq->result;
for (i = 0; i < digsize / 4; i++)
result[i] = cpu_to_be32(creq->state[i]);
}
}
atomic_sub(ahashreq->nbytes, &engine->load);
}
static int mv_cesa_ahash_import(struct ahash_request *req, const void *hash,
u64 len, const void *cache)
{
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
unsigned int digsize = crypto_ahash_digestsize(ahash);
unsigned int blocksize;
unsigned int cache_ptr;
int ret;
ret = crypto_ahash_init(req);
if (ret)
return ret;
blocksize = crypto_ahash_blocksize(ahash);
if (len >= blocksize)
mv_cesa_update_op_cfg(&creq->op_tmpl,
CESA_SA_DESC_CFG_MID_FRAG,
CESA_SA_DESC_CFG_FRAG_MSK);
creq->len = len;
memcpy(creq->state, hash, digsize);
creq->cache_ptr = 0;
cache_ptr = do_div(len, blocksize);
if (!cache_ptr)
return 0;
memcpy(creq->cache, cache, cache_ptr);
creq->cache_ptr = cache_ptr;
return 0;
}
static int ccp_aes_cmac_complete(struct crypto_async_request *async_req,
int ret)
{
struct ahash_request *req = ahash_request_cast(async_req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct ccp_aes_cmac_req_ctx *rctx = ahash_request_ctx(req);
unsigned int digest_size = crypto_ahash_digestsize(tfm);
if (ret)
goto e_free;
if (rctx->hash_rem) {
/* Save remaining data to buffer */
unsigned int offset = rctx->nbytes - rctx->hash_rem;
scatterwalk_map_and_copy(rctx->buf, rctx->src,
offset, rctx->hash_rem, 0);
rctx->buf_count = rctx->hash_rem;
} else {
rctx->buf_count = 0;
}
/* Update result area if supplied */
if (req->result)
memcpy(req->result, rctx->iv, digest_size);
e_free:
sg_free_table(&rctx->data_sg);
return ret;
}
static int qce_ahash_export(struct ahash_request *req, void *out)
{
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
unsigned long flags = rctx->flags;
unsigned int digestsize = crypto_ahash_digestsize(ahash);
unsigned int blocksize =
crypto_tfm_alg_blocksize(crypto_ahash_tfm(ahash));
if (IS_SHA1(flags) || IS_SHA1_HMAC(flags)) {
struct sha1_state *out_state = out;
out_state->count = rctx->count;
qce_cpu_to_be32p_array((__be32 *)out_state->state,
rctx->digest, digestsize);
memcpy(out_state->buffer, rctx->buf, blocksize);
} else if (IS_SHA256(flags) || IS_SHA256_HMAC(flags)) {
struct sha256_state *out_state = out;
out_state->count = rctx->count;
qce_cpu_to_be32p_array((__be32 *)out_state->state,
rctx->digest, digestsize);
memcpy(out_state->buf, rctx->buf, blocksize);
} else {
return -EINVAL;
}
return 0;
}
static int sahara_sha_init(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sahara_sha_reqctx *rctx = ahash_request_ctx(req);
memset(rctx, 0, sizeof(*rctx));
switch (crypto_ahash_digestsize(tfm)) {
case SHA1_DIGEST_SIZE:
rctx->mode |= SAHARA_HDR_MDHA_ALG_SHA1;
rctx->digest_size = SHA1_DIGEST_SIZE;
break;
case SHA256_DIGEST_SIZE:
rctx->mode |= SAHARA_HDR_MDHA_ALG_SHA256;
rctx->digest_size = SHA256_DIGEST_SIZE;
break;
default:
return -EINVAL;
}
rctx->context_size = rctx->digest_size + 4;
rctx->active = 0;
mutex_init(&rctx->mutex);
return 0;
}
static int qce_import_common(struct ahash_request *req, u64 in_count,
const u32 *state, const u8 *buffer, bool hmac)
{
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
unsigned int digestsize = crypto_ahash_digestsize(ahash);
unsigned int blocksize;
u64 count = in_count;
blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(ahash));
rctx->count = in_count;
memcpy(rctx->buf, buffer, blocksize);
if (in_count <= blocksize) {
rctx->first_blk = 1;
} else {
rctx->first_blk = 0;
/*
* For HMAC, there is a hardware padding done when first block
* is set. Therefore the byte_count must be incremened by 64
* after the first block operation.
*/
if (hmac)
count += SHA_PADDING;
}
rctx->byte_count[0] = (__force __be32)(count & ~SHA_PADDING_MASK);
rctx->byte_count[1] = (__force __be32)(count >> 32);
qce_cpu_to_be32p_array((__be32 *)rctx->digest, (const u8 *)state,
digestsize);
rctx->buflen = (unsigned int)(in_count & (blocksize - 1));
return 0;
}
static int crc32c_init(struct ahash_request *req)
{
u32 *mctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req));
u32 *crcp = ahash_request_ctx(req);
*crcp = *mctx;
return 0;
}
/*
* chcr_handle_resp - Unmap the DMA buffers associated with the request
* @req: crypto request
*/
int chcr_handle_resp(struct crypto_async_request *req, unsigned char *input,
int error_status)
{
struct crypto_tfm *tfm = req->tfm;
struct chcr_context *ctx = crypto_tfm_ctx(tfm);
struct uld_ctx *u_ctx = ULD_CTX(ctx);
struct chcr_req_ctx ctx_req;
struct cpl_fw6_pld *fw6_pld;
unsigned int digestsize, updated_digestsize;
switch (tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
case CRYPTO_ALG_TYPE_BLKCIPHER:
ctx_req.req.ablk_req = (struct ablkcipher_request *)req;
ctx_req.ctx.ablk_ctx =
ablkcipher_request_ctx(ctx_req.req.ablk_req);
if (!error_status) {
fw6_pld = (struct cpl_fw6_pld *)input;
memcpy(ctx_req.req.ablk_req->info, &fw6_pld->data[2],
AES_BLOCK_SIZE);
}
dma_unmap_sg(&u_ctx->lldi.pdev->dev, ctx_req.req.ablk_req->dst,
ABLK_CTX(ctx)->dst_nents, DMA_FROM_DEVICE);
if (ctx_req.ctx.ablk_ctx->skb) {
kfree_skb(ctx_req.ctx.ablk_ctx->skb);
ctx_req.ctx.ablk_ctx->skb = NULL;
}
break;
case CRYPTO_ALG_TYPE_AHASH:
ctx_req.req.ahash_req = (struct ahash_request *)req;
ctx_req.ctx.ahash_ctx =
ahash_request_ctx(ctx_req.req.ahash_req);
digestsize =
crypto_ahash_digestsize(crypto_ahash_reqtfm(
ctx_req.req.ahash_req));
updated_digestsize = digestsize;
if (digestsize == SHA224_DIGEST_SIZE)
updated_digestsize = SHA256_DIGEST_SIZE;
else if (digestsize == SHA384_DIGEST_SIZE)
updated_digestsize = SHA512_DIGEST_SIZE;
if (ctx_req.ctx.ahash_ctx->skb)
ctx_req.ctx.ahash_ctx->skb = NULL;
if (ctx_req.ctx.ahash_ctx->result == 1) {
ctx_req.ctx.ahash_ctx->result = 0;
memcpy(ctx_req.req.ahash_req->result, input +
sizeof(struct cpl_fw6_pld),
digestsize);
} else {
memcpy(ctx_req.ctx.ahash_ctx->partial_hash, input +
sizeof(struct cpl_fw6_pld),
updated_digestsize);
}
kfree(ctx_req.ctx.ahash_ctx->dummy_payload_ptr);
ctx_req.ctx.ahash_ctx->dummy_payload_ptr = NULL;
break;
}
return 0;
}
static int n2_hash_async_init(struct ahash_request *req)
{
struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm);
ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
return crypto_ahash_init(&rctx->fallback_req);
}
static int rk_ahash_export(struct ahash_request *req, void *out)
{
struct rk_ahash_rctx *rctx = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
rctx->fallback_req.base.flags = req->base.flags &
CRYPTO_TFM_REQ_MAY_SLEEP;
return crypto_ahash_export(&rctx->fallback_req, out);
}
static int sahara_sha_import(struct ahash_request *req, const void *in)
{
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
struct sahara_ctx *ctx = crypto_ahash_ctx(ahash);
struct sahara_sha_reqctx *rctx = ahash_request_ctx(req);
memcpy(ctx, in, sizeof(struct sahara_ctx));
memcpy(rctx, in + sizeof(struct sahara_sha_reqctx),
sizeof(struct sahara_sha_reqctx));
return 0;
}
static int sahara_sha_export(struct ahash_request *req, void *out)
{
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
struct sahara_ctx *ctx = crypto_ahash_ctx(ahash);
struct sahara_sha_reqctx *rctx = ahash_request_ctx(req);
memcpy(out, ctx, sizeof(struct sahara_ctx));
memcpy(out + sizeof(struct sahara_sha_reqctx), rctx,
sizeof(struct sahara_sha_reqctx));
return 0;
}
static int rk_ahash_final(struct ahash_request *req)
{
struct rk_ahash_rctx *rctx = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
rctx->fallback_req.base.flags = req->base.flags &
CRYPTO_TFM_REQ_MAY_SLEEP;
rctx->fallback_req.result = req->result;
return crypto_ahash_final(&rctx->fallback_req);
}
int crypto4xx_hash_digest(struct ahash_request *req)
{
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
struct scatterlist dst;
unsigned int ds = crypto_ahash_digestsize(ahash);
sg_init_one(&dst, req->result, ds);
return crypto4xx_build_pd(&req->base, ctx, req->src, &dst,
req->nbytes, NULL, 0, ctx->sa_in,
ctx->sa_len, 0);
}
static int mv_cesa_ahmac_pad_init(struct ahash_request *req,
const u8 *key, unsigned int keylen,
u8 *ipad, u8 *opad,
unsigned int blocksize)
{
struct mv_cesa_ahash_result result;
struct scatterlist sg;
int ret;
int i;
if (keylen <= blocksize) {
memcpy(ipad, key, keylen);
} else {
u8 *keydup = kmemdup(key, keylen, GFP_KERNEL);
if (!keydup)
return -ENOMEM;
ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
mv_cesa_hmac_ahash_complete,
&result);
sg_init_one(&sg, keydup, keylen);
ahash_request_set_crypt(req, &sg, ipad, keylen);
init_completion(&result.completion);
ret = crypto_ahash_digest(req);
if (ret == -EINPROGRESS) {
wait_for_completion_interruptible(&result.completion);
ret = result.error;
}
/* Set the memory region to 0 to avoid any leak. */
memset(keydup, 0, keylen);
kfree(keydup);
if (ret)
return ret;
keylen = crypto_ahash_digestsize(crypto_ahash_reqtfm(req));
}
memset(ipad + keylen, 0, blocksize - keylen);
memcpy(opad, ipad, blocksize);
for (i = 0; i < blocksize; i++) {
ipad[i] ^= 0x36;
opad[i] ^= 0x5c;
}
return 0;
}
static int crc32c_digest(struct ahash_request *req)
{
struct crypto_hash_walk walk;
u32 *mctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req));
u32 crc = *mctx;
int nbytes;
for (nbytes = crypto_hash_walk_first(req, &walk); nbytes;
nbytes = crypto_hash_walk_done(&walk, 0))
crc = crc32c(crc, walk.data, nbytes);
*(__le32 *)req->result = ~cpu_to_le32(crc);
return 0;
}
static int n2_hash_async_finup(struct ahash_request *req)
{
struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm);
ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
rctx->fallback_req.base.flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
rctx->fallback_req.nbytes = req->nbytes;
rctx->fallback_req.src = req->src;
rctx->fallback_req.result = req->result;
return crypto_ahash_finup(&rctx->fallback_req);
}
static int rk_ahash_update(struct ahash_request *req)
{
struct rk_ahash_rctx *rctx = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct rk_ahash_ctx *ctx = crypto_ahash_ctx(tfm);
ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
rctx->fallback_req.base.flags = req->base.flags &
CRYPTO_TFM_REQ_MAY_SLEEP;
rctx->fallback_req.nbytes = req->nbytes;
rctx->fallback_req.src = req->src;
return crypto_ahash_update(&rctx->fallback_req);
}
static int ss_hash_init(struct ahash_request *req, int type, int size, char *iv)
{
ss_aes_req_ctx_t *req_ctx = ahash_request_ctx(req);
ss_hash_ctx_t *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req));
SS_DBG("Method: %d \n", type);
memset(req_ctx, 0, sizeof(ss_aes_req_ctx_t));
req_ctx->type = type;
ctx->md_size = size;
memcpy(ctx->md, iv, size);
ctx->cnt = 0;
memset(ctx->pad, 0, SS_HASH_PAD_SIZE);
return 0;
}
static int ghash_async_final(struct ahash_request *req)
{
struct ahash_request *cryptd_req = ahash_request_ctx(req);
if (!irq_fpu_usable()) {
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
memcpy(cryptd_req, req, sizeof(*req));
ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
return crypto_ahash_final(cryptd_req);
} else {
struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
return crypto_shash_final(desc, req->result);
}
}
static int mv_cesa_ahash_export(struct ahash_request *req, void *hash,
u64 *len, void *cache)
{
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
struct mv_cesa_ahash_req *creq = ahash_request_ctx(req);
unsigned int digsize = crypto_ahash_digestsize(ahash);
unsigned int blocksize;
blocksize = crypto_ahash_blocksize(ahash);
*len = creq->len;
memcpy(hash, creq->state, digsize);
memset(cache, 0, blocksize);
memcpy(cache, creq->cache, creq->cache_ptr);
return 0;
}
int ss_hash_final(struct ahash_request *req)
{
int pad_len = 0;
ss_aes_req_ctx_t *req_ctx = ahash_request_ctx(req);
ss_hash_ctx_t *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(req));
struct scatterlist last = {0}; /* make a sg struct for padding data. */
if (req->result == NULL) {
SS_ERR("Invalid result porinter. \n");
return -EINVAL;
}
SS_DBG("Method: %d, cnt: %d\n", req_ctx->type, ctx->cnt);
if (ss_dev->suspend) {
SS_ERR("SS has already suspend. \n");
return -EAGAIN;
}
/* Process the padding data. */
pad_len = ss_hash_padding(ctx, req_ctx->type == SS_METHOD_MD5 ? 0 : 1);
SS_DBG("Pad len: %d \n", pad_len);
req_ctx->dma_src.sg = &last;
sg_init_table(&last, 1);
sg_set_buf(&last, ctx->pad, pad_len);
SS_DBG("Padding data: \n");
print_hex(ctx->pad, 128, (int)ctx->pad);
ss_dev_lock();
ss_hash_start(ctx, req_ctx, pad_len);
ss_sha_final();
SS_DBG("Method: %d, cnt: %d\n", req_ctx->type, ctx->cnt);
ss_check_sha_end();
memcpy(req->result, ctx->md, ctx->md_size);
ss_ctrl_stop();
ss_dev_unlock();
#ifdef SS_SHA_SWAP_FINAL_ENABLE
if (req_ctx->type != SS_METHOD_MD5)
ss_hash_swap(req->result, ctx->md_size);
#endif
return 0;
}
static int ghash_async_digest(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
struct ahash_request *cryptd_req = ahash_request_ctx(req);
struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
if (!irq_fpu_usable()) {
memcpy(cryptd_req, req, sizeof(*req));
ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
return crypto_ahash_digest(cryptd_req);
} else {
struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
struct crypto_shash *child = cryptd_ahash_child(cryptd_tfm);
desc->tfm = child;
desc->flags = req->base.flags;
return shash_ahash_digest(req, desc);
}
}
static int zero_message_process(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
int rk_digest_size = crypto_ahash_digestsize(tfm);
switch (rk_digest_size) {
case SHA1_DIGEST_SIZE:
memcpy(req->result, sha1_zero_message_hash, rk_digest_size);
break;
case SHA256_DIGEST_SIZE:
memcpy(req->result, sha256_zero_message_hash, rk_digest_size);
break;
case MD5_DIGEST_SIZE:
memcpy(req->result, md5_zero_message_hash, rk_digest_size);
break;
default:
return -EINVAL;
}
return 0;
}
static void qce_ahash_done(void *data)
{
struct crypto_async_request *async_req = data;
struct ahash_request *req = ahash_request_cast(async_req);
struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
struct qce_alg_template *tmpl = to_ahash_tmpl(async_req->tfm);
struct qce_device *qce = tmpl->qce;
struct qce_result_dump *result = qce->dma.result_buf;
unsigned int digestsize = crypto_ahash_digestsize(ahash);
int error;
u32 status;
error = qce_dma_terminate_all(&qce->dma);
if (error)
dev_dbg(qce->dev, "ahash dma termination error (%d)\n", error);
qce_unmapsg(qce->dev, req->src, rctx->src_nents, DMA_TO_DEVICE,
rctx->src_chained);
qce_unmapsg(qce->dev, &rctx->result_sg, 1, DMA_FROM_DEVICE, 0);
memcpy(rctx->digest, result->auth_iv, digestsize);
if (req->result)
memcpy(req->result, result->auth_iv, digestsize);
rctx->byte_count[0] = cpu_to_be32(result->auth_byte_count[0]);
rctx->byte_count[1] = cpu_to_be32(result->auth_byte_count[1]);
error = qce_check_status(qce, &status);
if (error < 0)
dev_dbg(qce->dev, "ahash operation error (%x)\n", status);
req->src = rctx->src_orig;
req->nbytes = rctx->nbytes_orig;
rctx->last_blk = false;
rctx->first_blk = false;
qce->async_req_done(tmpl->qce, error);
}
static void mv_hash_algo_completion(void)
{
struct ahash_request *req = ahash_request_cast(cpg->cur_req);
struct mv_req_hash_ctx *ctx = ahash_request_ctx(req);
if (ctx->extra_bytes)
copy_src_to_buf(&cpg->p, ctx->buffer, ctx->extra_bytes);
sg_miter_stop(&cpg->p.src_sg_it);
ctx->state[0] = readl(cpg->reg + DIGEST_INITIAL_VAL_A);
ctx->state[1] = readl(cpg->reg + DIGEST_INITIAL_VAL_B);
ctx->state[2] = readl(cpg->reg + DIGEST_INITIAL_VAL_C);
ctx->state[3] = readl(cpg->reg + DIGEST_INITIAL_VAL_D);
ctx->state[4] = readl(cpg->reg + DIGEST_INITIAL_VAL_E);
if (likely(ctx->last_chunk)) {
if (likely(ctx->count <= MAX_HW_HASH_SIZE)) {
memcpy(req->result, cpg->sram + SRAM_DIGEST_BUF,
crypto_ahash_digestsize(crypto_ahash_reqtfm
(req)));
} else
mv_hash_final_fallback(req);
}
}
}
/* Update result area if supplied */
if (req->result)
memcpy(req->result, rctx->iv, digest_size);
e_free:
sg_free_table(&rctx->data_sg);
return ret;
}
static int ccp_do_cmac_update(struct ahash_request *req, unsigned int nbytes,
unsigned int final)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct ccp_ctx *ctx = crypto_ahash_ctx(tfm);
struct ccp_aes_cmac_req_ctx *rctx = ahash_request_ctx(req);
struct scatterlist *sg, *cmac_key_sg = NULL;
unsigned int block_size =
crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
unsigned int need_pad, sg_count;
gfp_t gfp;
u64 len;
int ret;
if (!ctx->u.aes.key_len)
return -EINVAL;
if (nbytes)
rctx->null_msg = 0;
static int n2_hash_async_digest(struct ahash_request *req,
unsigned int auth_type, unsigned int digest_size,
unsigned int result_size, void *hash_loc)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct n2_hash_ctx *ctx = crypto_ahash_ctx(tfm);
struct cwq_initial_entry *ent;
struct crypto_hash_walk walk;
struct spu_queue *qp;
unsigned long flags;
int err = -ENODEV;
int nbytes, cpu;
/* The total effective length of the operation may not
* exceed 2^16.
*/
if (unlikely(req->nbytes > (1 << 16))) {
struct n2_hash_req_ctx *rctx = ahash_request_ctx(req);
ahash_request_set_tfm(&rctx->fallback_req, ctx->fallback_tfm);
rctx->fallback_req.base.flags =
req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
rctx->fallback_req.nbytes = req->nbytes;
rctx->fallback_req.src = req->src;
rctx->fallback_req.result = req->result;
return crypto_ahash_digest(&rctx->fallback_req);
}
n2_base_ctx_init(&ctx->base);
nbytes = crypto_hash_walk_first(req, &walk);
cpu = get_cpu();
qp = cpu_to_cwq[cpu];
if (!qp)
goto out;
spin_lock_irqsave(&qp->lock, flags);
/* XXX can do better, improve this later by doing a by-hand scatterlist
* XXX walk, etc.
*/
ent = qp->q + qp->tail;
ent->control = control_word_base(nbytes, 0, 0,
auth_type, digest_size,
false, true, false, false,
OPCODE_INPLACE_BIT |
OPCODE_AUTH_MAC);
ent->src_addr = __pa(walk.data);
ent->auth_key_addr = 0UL;
ent->auth_iv_addr = __pa(hash_loc);
ent->final_auth_state_addr = 0UL;
ent->enc_key_addr = 0UL;
ent->enc_iv_addr = 0UL;
ent->dest_addr = __pa(hash_loc);
nbytes = crypto_hash_walk_done(&walk, 0);
while (nbytes > 0) {
ent = spu_queue_next(qp, ent);
ent->control = (nbytes - 1);
ent->src_addr = __pa(walk.data);
ent->auth_key_addr = 0UL;
ent->auth_iv_addr = 0UL;
ent->final_auth_state_addr = 0UL;
ent->enc_key_addr = 0UL;
ent->enc_iv_addr = 0UL;
ent->dest_addr = 0UL;
nbytes = crypto_hash_walk_done(&walk, 0);
}
ent->control |= CONTROL_END_OF_BLOCK;
if (submit_and_wait_for_tail(qp, ent) != HV_EOK)
err = -EINVAL;
else
err = 0;
spin_unlock_irqrestore(&qp->lock, flags);
if (!err)
memcpy(req->result, hash_loc, result_size);
out:
put_cpu();
return err;
}
