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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Cryptographic API.
* Glue code for the SHA1 Secure Hash Algorithm assembler implementation
*
* This file is based on sha1_generic.c and sha1_ssse3_glue.c
*
* Copyright (c) Alan Smithee.
* Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
* Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
* Copyright (c) Mathias Krause <minipli@googlemail.com>
*/
#include <crypto/internal/hash.h>
#include <crypto/sha1.h>
#include <crypto/sha1_base.h>
#include <linux/kernel.h>
#include <linux/module.h>
asmlinkage void sha1_block_data_order(struct sha1_state *digest,
const u8 *data, int rounds);
static int sha1_update_arm(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
/* make sure signature matches sha1_block_fn() */
BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
return sha1_base_do_update_blocks(desc, data, len,
sha1_block_data_order);
}
static int sha1_finup_arm(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
sha1_base_do_finup(desc, data, len, sha1_block_data_order);
return sha1_base_finish(desc, out);
}
static struct shash_alg alg = {
.digestsize = SHA1_DIGEST_SIZE,
.init = sha1_base_init,
.update = sha1_update_arm,
.finup = sha1_finup_arm,
.descsize = SHA1_STATE_SIZE,
.base = {
.cra_name = "sha1",
.cra_driver_name= "sha1-asm",
.cra_priority = 150,
.cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY,
.cra_blocksize = SHA1_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
};
static int __init sha1_mod_init(void)
{
return crypto_register_shash(&alg);
}
static void __exit sha1_mod_fini(void)
{
crypto_unregister_shash(&alg);
}
module_init(sha1_mod_init);
module_exit(sha1_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm (ARM)");
MODULE_ALIAS_CRYPTO("sha1");
MODULE_AUTHOR("David McCullough <ucdevel@gmail.com>");
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