]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Cryptographic API. | |
3 | * | |
4 | * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> | |
5cb1454b | 5 | * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au> |
1da177e4 LT |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the Free | |
9 | * Software Foundation; either version 2 of the License, or (at your option) | |
10 | * any later version. | |
11 | * | |
12 | */ | |
13 | #ifndef _CRYPTO_INTERNAL_H | |
14 | #define _CRYPTO_INTERNAL_H | |
cce9e06d HX |
15 | |
16 | #include <crypto/algapi.h> | |
2825982d | 17 | #include <linux/completion.h> |
1da177e4 LT |
18 | #include <linux/mm.h> |
19 | #include <linux/highmem.h> | |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/init.h> | |
5cb1454b | 22 | #include <linux/list.h> |
4cc7720c | 23 | #include <linux/module.h> |
fbdae9f3 | 24 | #include <linux/kernel.h> |
2825982d | 25 | #include <linux/notifier.h> |
5cb1454b | 26 | #include <linux/rwsem.h> |
64baf3cf | 27 | #include <linux/slab.h> |
5b739ef8 | 28 | #include <linux/fips.h> |
ccb778e1 | 29 | |
2825982d HX |
30 | /* Crypto notification events. */ |
31 | enum { | |
32 | CRYPTO_MSG_ALG_REQUEST, | |
33 | CRYPTO_MSG_ALG_REGISTER, | |
34 | CRYPTO_MSG_ALG_UNREGISTER, | |
35 | CRYPTO_MSG_TMPL_REGISTER, | |
36 | CRYPTO_MSG_TMPL_UNREGISTER, | |
37 | }; | |
38 | ||
4cc7720c HX |
39 | struct crypto_instance; |
40 | struct crypto_template; | |
41 | ||
2825982d HX |
42 | struct crypto_larval { |
43 | struct crypto_alg alg; | |
44 | struct crypto_alg *adult; | |
45 | struct completion completion; | |
492e2b63 | 46 | u32 mask; |
2825982d HX |
47 | }; |
48 | ||
5cb1454b HX |
49 | extern struct list_head crypto_alg_list; |
50 | extern struct rw_semaphore crypto_alg_sem; | |
2825982d | 51 | extern struct blocking_notifier_head crypto_chain; |
5cb1454b | 52 | |
1da177e4 LT |
53 | #ifdef CONFIG_PROC_FS |
54 | void __init crypto_init_proc(void); | |
cce9e06d | 55 | void __exit crypto_exit_proc(void); |
1da177e4 LT |
56 | #else |
57 | static inline void crypto_init_proc(void) | |
58 | { } | |
cce9e06d HX |
59 | static inline void crypto_exit_proc(void) |
60 | { } | |
1da177e4 LT |
61 | #endif |
62 | ||
f1ddcaf3 | 63 | static inline unsigned int crypto_digest_ctxsize(struct crypto_alg *alg) |
fbdae9f3 | 64 | { |
ee756416 HX |
65 | unsigned int len = alg->cra_ctxsize; |
66 | ||
67 | if (alg->cra_alignmask) { | |
68 | len = ALIGN(len, (unsigned long)alg->cra_alignmask + 1); | |
69 | len += alg->cra_digest.dia_digestsize; | |
70 | } | |
71 | ||
72 | return len; | |
fbdae9f3 HX |
73 | } |
74 | ||
f1ddcaf3 | 75 | static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg) |
fbdae9f3 | 76 | { |
f1ddcaf3 | 77 | return alg->cra_ctxsize; |
fbdae9f3 HX |
78 | } |
79 | ||
f1ddcaf3 | 80 | static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg) |
fbdae9f3 HX |
81 | { |
82 | return alg->cra_ctxsize; | |
83 | } | |
84 | ||
2825982d | 85 | struct crypto_alg *crypto_mod_get(struct crypto_alg *alg); |
c51b6c81 | 86 | struct crypto_alg *crypto_alg_lookup(const char *name, u32 type, u32 mask); |
492e2b63 | 87 | struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask); |
2825982d | 88 | |
1da177e4 | 89 | int crypto_init_digest_ops(struct crypto_tfm *tfm); |
004a403c | 90 | int crypto_init_digest_ops_async(struct crypto_tfm *tfm); |
1da177e4 LT |
91 | int crypto_init_cipher_ops(struct crypto_tfm *tfm); |
92 | int crypto_init_compress_ops(struct crypto_tfm *tfm); | |
93 | ||
94 | void crypto_exit_digest_ops(struct crypto_tfm *tfm); | |
95 | void crypto_exit_cipher_ops(struct crypto_tfm *tfm); | |
96 | void crypto_exit_compress_ops(struct crypto_tfm *tfm); | |
97 | ||
73d3864a | 98 | struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask); |
b9c55aa4 HX |
99 | void crypto_larval_kill(struct crypto_alg *alg); |
100 | struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask); | |
492e2b63 | 101 | void crypto_larval_error(const char *name, u32 type, u32 mask); |
73d3864a | 102 | void crypto_alg_tested(const char *name, int err); |
2825982d | 103 | |
6bfd4809 | 104 | void crypto_shoot_alg(struct crypto_alg *alg); |
27d2a330 HX |
105 | struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type, |
106 | u32 mask); | |
3f683d61 HX |
107 | void *crypto_create_tfm(struct crypto_alg *alg, |
108 | const struct crypto_type *frontend); | |
109 | void *crypto_alloc_tfm(const char *alg_name, | |
110 | const struct crypto_type *frontend, u32 type, u32 mask); | |
6bfd4809 | 111 | |
4cc7720c HX |
112 | int crypto_register_instance(struct crypto_template *tmpl, |
113 | struct crypto_instance *inst); | |
114 | ||
2825982d HX |
115 | int crypto_register_notifier(struct notifier_block *nb); |
116 | int crypto_unregister_notifier(struct notifier_block *nb); | |
73d3864a | 117 | int crypto_probing_notify(unsigned long val, void *v); |
2825982d | 118 | |
6bfd4809 HX |
119 | static inline void crypto_alg_put(struct crypto_alg *alg) |
120 | { | |
121 | if (atomic_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy) | |
122 | alg->cra_destroy(alg); | |
123 | } | |
124 | ||
4cc7720c HX |
125 | static inline int crypto_tmpl_get(struct crypto_template *tmpl) |
126 | { | |
127 | return try_module_get(tmpl->module); | |
128 | } | |
129 | ||
130 | static inline void crypto_tmpl_put(struct crypto_template *tmpl) | |
131 | { | |
132 | module_put(tmpl->module); | |
133 | } | |
134 | ||
2825982d HX |
135 | static inline int crypto_is_larval(struct crypto_alg *alg) |
136 | { | |
137 | return alg->cra_flags & CRYPTO_ALG_LARVAL; | |
138 | } | |
139 | ||
6bfd4809 HX |
140 | static inline int crypto_is_dead(struct crypto_alg *alg) |
141 | { | |
142 | return alg->cra_flags & CRYPTO_ALG_DEAD; | |
143 | } | |
144 | ||
145 | static inline int crypto_is_moribund(struct crypto_alg *alg) | |
146 | { | |
147 | return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING); | |
148 | } | |
149 | ||
73d3864a | 150 | static inline void crypto_notify(unsigned long val, void *v) |
2825982d | 151 | { |
73d3864a | 152 | blocking_notifier_call_chain(&crypto_chain, val, v); |
2825982d HX |
153 | } |
154 | ||
1da177e4 LT |
155 | #endif /* _CRYPTO_INTERNAL_H */ |
156 |