Root/
1 | /* |
2 | * Cryptographic API. |
3 | * |
4 | * s390 implementation of the SHA1 Secure Hash Algorithm. |
5 | * |
6 | * Derived from cryptoapi implementation, adapted for in-place |
7 | * scatterlist interface. Originally based on the public domain |
8 | * implementation written by Steve Reid. |
9 | * |
10 | * s390 Version: |
11 | * Copyright IBM Corp. 2003,2007 |
12 | * Author(s): Thomas Spatzier |
13 | * Jan Glauber (jan.glauber@de.ibm.com) |
14 | * |
15 | * Derived from "crypto/sha1_generic.c" |
16 | * Copyright (c) Alan Smithee. |
17 | * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk> |
18 | * Copyright (c) Jean-Francois Dive <jef@linuxbe.org> |
19 | * |
20 | * This program is free software; you can redistribute it and/or modify it |
21 | * under the terms of the GNU General Public License as published by the Free |
22 | * Software Foundation; either version 2 of the License, or (at your option) |
23 | * any later version. |
24 | * |
25 | */ |
26 | #include <crypto/internal/hash.h> |
27 | #include <linux/init.h> |
28 | #include <linux/module.h> |
29 | #include <crypto/sha.h> |
30 | |
31 | #include "crypt_s390.h" |
32 | #include "sha.h" |
33 | |
34 | static int sha1_init(struct shash_desc *desc) |
35 | { |
36 | struct s390_sha_ctx *sctx = shash_desc_ctx(desc); |
37 | |
38 | sctx->state[0] = SHA1_H0; |
39 | sctx->state[1] = SHA1_H1; |
40 | sctx->state[2] = SHA1_H2; |
41 | sctx->state[3] = SHA1_H3; |
42 | sctx->state[4] = SHA1_H4; |
43 | sctx->count = 0; |
44 | sctx->func = KIMD_SHA_1; |
45 | |
46 | return 0; |
47 | } |
48 | |
49 | static int sha1_export(struct shash_desc *desc, void *out) |
50 | { |
51 | struct s390_sha_ctx *sctx = shash_desc_ctx(desc); |
52 | struct sha1_state *octx = out; |
53 | |
54 | octx->count = sctx->count; |
55 | memcpy(octx->state, sctx->state, sizeof(octx->state)); |
56 | memcpy(octx->buffer, sctx->buf, sizeof(octx->buffer)); |
57 | return 0; |
58 | } |
59 | |
60 | static int sha1_import(struct shash_desc *desc, const void *in) |
61 | { |
62 | struct s390_sha_ctx *sctx = shash_desc_ctx(desc); |
63 | const struct sha1_state *ictx = in; |
64 | |
65 | sctx->count = ictx->count; |
66 | memcpy(sctx->state, ictx->state, sizeof(ictx->state)); |
67 | memcpy(sctx->buf, ictx->buffer, sizeof(ictx->buffer)); |
68 | sctx->func = KIMD_SHA_1; |
69 | return 0; |
70 | } |
71 | |
72 | static struct shash_alg alg = { |
73 | .digestsize = SHA1_DIGEST_SIZE, |
74 | .init = sha1_init, |
75 | .update = s390_sha_update, |
76 | .final = s390_sha_final, |
77 | .export = sha1_export, |
78 | .import = sha1_import, |
79 | .descsize = sizeof(struct s390_sha_ctx), |
80 | .statesize = sizeof(struct sha1_state), |
81 | .base = { |
82 | .cra_name = "sha1", |
83 | .cra_driver_name= "sha1-s390", |
84 | .cra_priority = CRYPT_S390_PRIORITY, |
85 | .cra_flags = CRYPTO_ALG_TYPE_SHASH, |
86 | .cra_blocksize = SHA1_BLOCK_SIZE, |
87 | .cra_module = THIS_MODULE, |
88 | } |
89 | }; |
90 | |
91 | static int __init sha1_s390_init(void) |
92 | { |
93 | if (!crypt_s390_func_available(KIMD_SHA_1)) |
94 | return -EOPNOTSUPP; |
95 | return crypto_register_shash(&alg); |
96 | } |
97 | |
98 | static void __exit sha1_s390_fini(void) |
99 | { |
100 | crypto_unregister_shash(&alg); |
101 | } |
102 | |
103 | module_init(sha1_s390_init); |
104 | module_exit(sha1_s390_fini); |
105 | |
106 | MODULE_ALIAS("sha1"); |
107 | MODULE_LICENSE("GPL"); |
108 | MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm"); |
109 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9