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crypto: caam - fix asynchronous hash

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ahash_alg->setkey is updated to ahash_nosetkey in ahash.c
so checking setkey() function to determine hmac algorithm is not valid.

to fix this added is_hmac variable in structure caam_hash_alg to determine
whether the algorithm is hmac or not.

Fixes: 2f1f34c1bf ("crypto: ahash - optimize performance when wrapping shash")
Signed-off-by: Gaurav Jain <gaurav.jain@nxp.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gaurav Jain
2024-01-18 14:55:57 +05:30
committed by Herbert Xu
parent e1d54d153f
commit c5a2f74db7
2 changed files with 10 additions and 4 deletions
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drivers/crypto/caam/caamalg_qi2.c
+5 -2
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@@ -4545,6 +4545,7 @@ struct caam_hash_alg {
struct list_head entry;
struct device *dev;
int alg_type;
bool is_hmac;
struct ahash_alg ahash_alg;
};
@@ -4571,7 +4572,7 @@ static int caam_hash_cra_init(struct crypto_tfm *tfm)
ctx->dev = caam_hash->dev;
if (alg->setkey) {
if (caam_hash->is_hmac) {
ctx->adata.key_dma = dma_map_single_attrs(ctx->dev, ctx->key,
ARRAY_SIZE(ctx->key),
DMA_TO_DEVICE,
@@ -4611,7 +4612,7 @@ static int caam_hash_cra_init(struct crypto_tfm *tfm)
* For keyed hash algorithms shared descriptors
* will be created later in setkey() callback
*/
return alg->setkey ? 0 : ahash_set_sh_desc(ahash);
return caam_hash->is_hmac ? 0 : ahash_set_sh_desc(ahash);
}
static void caam_hash_cra_exit(struct crypto_tfm *tfm)
@@ -4646,12 +4647,14 @@ static struct caam_hash_alg *caam_hash_alloc(struct device *dev,
template->hmac_name);
snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
template->hmac_driver_name);
t_alg->is_hmac = true;
} else {
snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s",
template->name);
snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
template->driver_name);
t_alg->ahash_alg.setkey = NULL;
t_alg->is_hmac = false;
}
alg->cra_module = THIS_MODULE;
alg->cra_init = caam_hash_cra_init;