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// SPDX-License-Identifier: GPL-2.0 OR MIT
/*
* Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
*/
#include <crypto/internal/blake2s.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/hash.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sizes.h>
#include <asm/cpufeature.h>
#include <asm/processor.h>
static int crypto_blake2s_update_x86(struct shash_desc *desc,
const u8 *in, unsigned int inlen)
{
return crypto_blake2s_update(desc, in, inlen, false);
}
static int crypto_blake2s_final_x86(struct shash_desc *desc, u8 *out)
{
return crypto_blake2s_final(desc, out, false);
}
#define BLAKE2S_ALG(name, driver_name, digest_size) \
{ \
.base.cra_name = name, \
.base.cra_driver_name = driver_name, \
.base.cra_priority = 200, \
.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_x86, \
.final = crypto_blake2s_final_x86, \
.descsize = sizeof(struct blake2s_state), \
}
static struct shash_alg blake2s_algs[] = {
BLAKE2S_ALG("blake2s-128", "blake2s-128-x86", BLAKE2S_128_HASH_SIZE),
BLAKE2S_ALG("blake2s-160", "blake2s-160-x86", BLAKE2S_160_HASH_SIZE),
BLAKE2S_ALG("blake2s-224", "blake2s-224-x86", BLAKE2S_224_HASH_SIZE),
BLAKE2S_ALG("blake2s-256", "blake2s-256-x86", BLAKE2S_256_HASH_SIZE),
};
static int __init blake2s_mod_init(void)
{
if (IS_REACHABLE(CONFIG_CRYPTO_HASH) && boot_cpu_has(X86_FEATURE_SSSE3))
return crypto_register_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
return 0;
}
static void __exit blake2s_mod_exit(void)
{
if (IS_REACHABLE(CONFIG_CRYPTO_HASH) && boot_cpu_has(X86_FEATURE_SSSE3))
crypto_unregister_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
}
module_init(blake2s_mod_init);
module_exit(blake2s_mod_exit);
MODULE_ALIAS_CRYPTO("blake2s-128");
MODULE_ALIAS_CRYPTO("blake2s-128-x86");
MODULE_ALIAS_CRYPTO("blake2s-160");
MODULE_ALIAS_CRYPTO("blake2s-160-x86");
MODULE_ALIAS_CRYPTO("blake2s-224");
MODULE_ALIAS_CRYPTO("blake2s-224-x86");
MODULE_ALIAS_CRYPTO("blake2s-256");
MODULE_ALIAS_CRYPTO("blake2s-256-x86");
MODULE_LICENSE("GPL v2");
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