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crypto: blake2s - define shash_alg structs using macros 

The shash_alg structs for the four variants of BLAKE2s are identical
except for the algorithm name, driver name, and digest size.  So, avoid
code duplication by using a macro to define these structs.

Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers 2020-12-23 00:09:50 -08:00 committed by Herbert Xu
parent c4ff41b93d
commit 0d396058f9
1 changed files with 26 additions and 60 deletions
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86
crypto/blake2s_generic.c
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@ -83,67 +83,33 @@ static int crypto_blake2s_final(struct shash_desc *desc, u8 *out)
return 0;
}
static struct shash_alg blake2s_algs[] = {{
.base.cra_name = "blake2s-128",
.base.cra_driver_name = "blake2s-128-generic",
.base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
.base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
.base.cra_priority = 200,
.base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
#define BLAKE2S_ALG(name, driver_name, digest_size) \
{ \
.base.cra_name = name, \
.base.cra_driver_name = driver_name, \
.base.cra_priority = 100, \
.base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY, \
.base.cra_blocksize = BLAKE2S_BLOCK_SIZE, \
.base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx), \
.base.cra_module = THIS_MODULE, \
.digestsize = digest_size, \
.setkey = crypto_blake2s_setkey, \
.init = crypto_blake2s_init, \
.update = crypto_blake2s_update, \
.final = crypto_blake2s_final, \
.descsize = sizeof(struct blake2s_state), \
}
.digestsize = BLAKE2S_128_HASH_SIZE,
.setkey = crypto_blake2s_setkey,
.init = crypto_blake2s_init,
.update = crypto_blake2s_update,
.final = crypto_blake2s_final,
.descsize = sizeof(struct blake2s_state),
}, {
.base.cra_name = "blake2s-160",
.base.cra_driver_name = "blake2s-160-generic",
.base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
.base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
.base.cra_priority = 200,
.base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
.digestsize = BLAKE2S_160_HASH_SIZE,
.setkey = crypto_blake2s_setkey,
.init = crypto_blake2s_init,
.update = crypto_blake2s_update,
.final = crypto_blake2s_final,
.descsize = sizeof(struct blake2s_state),
}, {
.base.cra_name = "blake2s-224",
.base.cra_driver_name = "blake2s-224-generic",
.base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
.base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
.base.cra_priority = 200,
.base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
.digestsize = BLAKE2S_224_HASH_SIZE,
.setkey = crypto_blake2s_setkey,
.init = crypto_blake2s_init,
.update = crypto_blake2s_update,
.final = crypto_blake2s_final,
.descsize = sizeof(struct blake2s_state),
}, {
.base.cra_name = "blake2s-256",
.base.cra_driver_name = "blake2s-256-generic",
.base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
.base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx),
.base.cra_priority = 200,
.base.cra_blocksize = BLAKE2S_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
.digestsize = BLAKE2S_256_HASH_SIZE,
.setkey = crypto_blake2s_setkey,
.init = crypto_blake2s_init,
.update = crypto_blake2s_update,
.final = crypto_blake2s_final,
.descsize = sizeof(struct blake2s_state),
}};
static struct shash_alg blake2s_algs[] = {
BLAKE2S_ALG("blake2s-128", "blake2s-128-generic",
BLAKE2S_128_HASH_SIZE),
BLAKE2S_ALG("blake2s-160", "blake2s-160-generic",
BLAKE2S_160_HASH_SIZE),
BLAKE2S_ALG("blake2s-224", "blake2s-224-generic",
BLAKE2S_224_HASH_SIZE),
BLAKE2S_ALG("blake2s-256", "blake2s-256-generic",
BLAKE2S_256_HASH_SIZE),
};
static int __init blake2s_mod_init(void)
{