1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Cryptographic API.
4 * Glue code for the SHA1 Secure Hash Algorithm assembler implementation
5 *
6 * This file is based on sha1_generic.c and sha1_ssse3_glue.c
7 *
8 * Copyright (c) Alan Smithee.
9 * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
10 * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
11 * Copyright (c) Mathias Krause <minipli@googlemail.com>
12 */
13
14#include <crypto/internal/hash.h>
15#include <linux/init.h>
16#include <linux/module.h>
17#include <linux/types.h>
18#include <crypto/sha1.h>
19#include <crypto/sha1_base.h>
20#include <asm/byteorder.h>
21
22#include "sha1.h"
23
24asmlinkage void sha1_block_data_order(struct sha1_state *digest,
25		const u8 *data, int rounds);
26
27int sha1_update_arm(struct shash_desc *desc, const u8 *data,
28		    unsigned int len)
29{
30	/* make sure signature matches sha1_block_fn() */
31	BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
32
33	return sha1_base_do_update(desc, data, len, sha1_block_data_order);
34}
35EXPORT_SYMBOL_GPL(sha1_update_arm);
36
37static int sha1_final(struct shash_desc *desc, u8 *out)
38{
39	sha1_base_do_finalize(desc, sha1_block_data_order);
40	return sha1_base_finish(desc, out);
41}
42
43int sha1_finup_arm(struct shash_desc *desc, const u8 *data,
44		   unsigned int len, u8 *out)
45{
46	sha1_base_do_update(desc, data, len, sha1_block_data_order);
47	return sha1_final(desc, out);
48}
49EXPORT_SYMBOL_GPL(sha1_finup_arm);
50
51static struct shash_alg alg = {
52	.digestsize	=	SHA1_DIGEST_SIZE,
53	.init		=	sha1_base_init,
54	.update		=	sha1_update_arm,
55	.final		=	sha1_final,
56	.finup		=	sha1_finup_arm,
57	.descsize	=	sizeof(struct sha1_state),
58	.base		=	{
59		.cra_name	=	"sha1",
60		.cra_driver_name=	"sha1-asm",
61		.cra_priority	=	150,
62		.cra_blocksize	=	SHA1_BLOCK_SIZE,
63		.cra_module	=	THIS_MODULE,
64	}
65};
66
67
68static int __init sha1_mod_init(void)
69{
70	return crypto_register_shash(&alg);
71}
72
73
74static void __exit sha1_mod_fini(void)
75{
76	crypto_unregister_shash(&alg);
77}
78
79
80module_init(sha1_mod_init);
81module_exit(sha1_mod_fini);
82
83MODULE_LICENSE("GPL");
84MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm (ARM)");
85MODULE_ALIAS_CRYPTO("sha1");
86MODULE_AUTHOR("David McCullough <ucdevel@gmail.com>");
87