projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| f0be44f4 DM |
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> | |
| f0be44f4 DM |
12 | */ |
| 13 | ||
| 14 | #include <crypto/internal/hash.h> | |
| 15 | #include <linux/init.h> | |
| 16 | #include <linux/module.h> | |
| 17 | #include <linux/cryptohash.h> | |
| 18 | #include <linux/types.h> | |
| 19 | #include <crypto/sha.h> | |
| 90451d6b | 20 | #include <crypto/sha1_base.h> |
| f0be44f4 DM |
21 | #include <asm/byteorder.h> |
| 22 | ||
| 90451d6b | 23 | #include "sha1.h" |
| f0be44f4 | 24 | |
| 1f8673d3 | 25 | asmlinkage void sha1_block_data_order(u32 *digest, |
| f0be44f4 DM |
26 | const unsigned char *data, unsigned int rounds); |
| 27 | ||
| 60468255 JK |
28 | int sha1_update_arm(struct shash_desc *desc, const u8 *data, |
| 29 | unsigned int len) | |
| f0be44f4 | 30 | { |
| 90451d6b AB |
31 | /* make sure casting to sha1_block_fn() is safe */ |
| 32 | BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0); | |
| f0be44f4 | 33 | |
| 90451d6b AB |
34 | return sha1_base_do_update(desc, data, len, |
| 35 | (sha1_block_fn *)sha1_block_data_order); | |
| f0be44f4 | 36 | } |
| 60468255 | 37 | EXPORT_SYMBOL_GPL(sha1_update_arm); |
| f0be44f4 | 38 | |
| f0be44f4 DM |
39 | static int sha1_final(struct shash_desc *desc, u8 *out) |
| 40 | { | |
| 90451d6b AB |
41 | sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_block_data_order); |
| 42 | return sha1_base_finish(desc, out); | |
| f0be44f4 DM |
43 | } |
| 44 | ||
| 90451d6b AB |
45 | int sha1_finup_arm(struct shash_desc *desc, const u8 *data, |
| 46 | unsigned int len, u8 *out) | |
| f0be44f4 | 47 | { |
| 90451d6b AB |
48 | sha1_base_do_update(desc, data, len, |
| 49 | (sha1_block_fn *)sha1_block_data_order); | |
| 50 | return sha1_final(desc, out); | |
| f0be44f4 | 51 | } |
| 90451d6b | 52 | EXPORT_SYMBOL_GPL(sha1_finup_arm); |
| f0be44f4 DM |
53 | |
| 54 | static struct shash_alg alg = { | |
| 55 | .digestsize = SHA1_DIGEST_SIZE, | |
| 90451d6b | 56 | .init = sha1_base_init, |
| 60468255 | 57 | .update = sha1_update_arm, |
| f0be44f4 | 58 | .final = sha1_final, |
| 90451d6b | 59 | .finup = sha1_finup_arm, |
| 1f8673d3 | 60 | .descsize = sizeof(struct sha1_state), |
| f0be44f4 DM |
61 | .base = { |
| 62 | .cra_name = "sha1", | |
| 63 | .cra_driver_name= "sha1-asm", | |
| 64 | .cra_priority = 150, | |
| f0be44f4 DM |
65 | .cra_blocksize = SHA1_BLOCK_SIZE, |
| 66 | .cra_module = THIS_MODULE, | |
| 67 | } | |
| 68 | }; | |
| 69 | ||
| 70 | ||
| 71 | static int __init sha1_mod_init(void) | |
| 72 | { | |
| 73 | return crypto_register_shash(&alg); | |
| 74 | } | |
| 75 | ||
| 76 | ||
| 77 | static void __exit sha1_mod_fini(void) | |
| 78 | { | |
| 79 | crypto_unregister_shash(&alg); | |
| 80 | } | |
| 81 | ||
| 82 | ||
| 83 | module_init(sha1_mod_init); | |
| 84 | module_exit(sha1_mod_fini); | |
| 85 | ||
| 86 | MODULE_LICENSE("GPL"); | |
| 87 | MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm (ARM)"); | |
| 5d26a105 | 88 | MODULE_ALIAS_CRYPTO("sha1"); |
| f0be44f4 | 89 | MODULE_AUTHOR("David McCullough <ucdevel@gmail.com>"); |