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/*
* 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>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
*/
#include <crypto/internal/hash.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/cryptohash.h>
#include <linux/types.h>
#include <crypto/sha.h>
#include <crypto/sha1_base.h>
#include <asm/byteorder.h>
#include "sha1.h"
asmlinkage void sha1_block_data_order(u32 *digest,
const unsigned char *data, unsigned int rounds);
int sha1_update_arm(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
/* make sure casting to sha1_block_fn() is safe */
BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
return sha1_base_do_update(desc, data, len,
(sha1_block_fn *)sha1_block_data_order);
}
EXPORT_SYMBOL_GPL(sha1_update_arm);
static int sha1_final(struct shash_desc *desc, u8 *out)
{
sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_block_data_order);
return sha1_base_finish(desc, out);
}
int sha1_finup_arm(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
sha1_base_do_update(desc, data, len,
(sha1_block_fn *)sha1_block_data_order);
return sha1_final(desc, out);
}
EXPORT_SYMBOL_GPL(sha1_finup_arm);
static struct shash_alg alg = {
.digestsize = SHA1_DIGEST_SIZE,
.init = sha1_base_init,
.update = sha1_update_arm,
.final = sha1_final,
.finup = sha1_finup_arm,
.descsize = sizeof(struct sha1_state),
.base = {
.cra_name = "sha1",
.cra_driver_name= "sha1-asm",
.cra_priority = 150,
.cra_flags = CRYPTO_ALG_TYPE_SHASH,
.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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