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1/*
2 * Cryptographic API.
3 *
4 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
5 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
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
15
16#include <crypto/algapi.h>
17#include <linux/completion.h>
18#include <linux/mm.h>
19#include <linux/highmem.h>
20#include <linux/interrupt.h>
21#include <linux/init.h>
22#include <linux/list.h>
23#include <linux/module.h>
24#include <linux/kernel.h>
25#include <linux/notifier.h>
26#include <linux/rwsem.h>
27#include <linux/slab.h>
28
29/* Crypto notification events. */
30enum {
31 CRYPTO_MSG_ALG_REQUEST,
32 CRYPTO_MSG_ALG_REGISTER,
33 CRYPTO_MSG_ALG_UNREGISTER,
34 CRYPTO_MSG_TMPL_REGISTER,
35 CRYPTO_MSG_TMPL_UNREGISTER,
36};
37
38struct crypto_instance;
39struct crypto_template;
40
41struct crypto_larval {
42 struct crypto_alg alg;
43 struct crypto_alg *adult;
44 struct completion completion;
45 u32 mask;
46};
47
48extern struct list_head crypto_alg_list;
49extern struct rw_semaphore crypto_alg_sem;
50extern struct blocking_notifier_head crypto_chain;
51
52#ifdef CONFIG_PROC_FS
53void __init crypto_init_proc(void);
54void __exit crypto_exit_proc(void);
55#else
56static inline void crypto_init_proc(void)
57{ }
58static inline void crypto_exit_proc(void)
59{ }
60#endif
61
62static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg)
63{
64 return alg->cra_ctxsize;
65}
66
67static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
68{
69 return alg->cra_ctxsize;
70}
71
72struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
73struct crypto_alg *crypto_alg_lookup(const char *name, u32 type, u32 mask);
74struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
75
76int crypto_init_cipher_ops(struct crypto_tfm *tfm);
77int crypto_init_compress_ops(struct crypto_tfm *tfm);
78
79void crypto_exit_cipher_ops(struct crypto_tfm *tfm);
80void crypto_exit_compress_ops(struct crypto_tfm *tfm);
81
82struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);
83void crypto_larval_kill(struct crypto_alg *alg);
84struct crypto_alg *crypto_larval_lookup(const char *name, u32 type, u32 mask);
85void crypto_alg_tested(const char *name, int err);
86
87void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
88 struct crypto_alg *nalg);
89void crypto_remove_final(struct list_head *list);
90void crypto_shoot_alg(struct crypto_alg *alg);
91struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
92 u32 mask);
93void *crypto_create_tfm(struct crypto_alg *alg,
94 const struct crypto_type *frontend);
95struct crypto_alg *crypto_find_alg(const char *alg_name,
96 const struct crypto_type *frontend,
97 u32 type, u32 mask);
98void *crypto_alloc_tfm(const char *alg_name,
99 const struct crypto_type *frontend, u32 type, u32 mask);
100
101int crypto_register_notifier(struct notifier_block *nb);
102int crypto_unregister_notifier(struct notifier_block *nb);
103int crypto_probing_notify(unsigned long val, void *v);
104
105unsigned int crypto_alg_extsize(struct crypto_alg *alg);
106
107int crypto_type_has_alg(const char *name, const struct crypto_type *frontend,
108 u32 type, u32 mask);
109
110static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)
111{
112 atomic_inc(&alg->cra_refcnt);
113 return alg;
114}
115
116static inline void crypto_alg_put(struct crypto_alg *alg)
117{
118 if (atomic_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
119 alg->cra_destroy(alg);
120}
121
122static inline int crypto_tmpl_get(struct crypto_template *tmpl)
123{
124 return try_module_get(tmpl->module);
125}
126
127static inline void crypto_tmpl_put(struct crypto_template *tmpl)
128{
129 module_put(tmpl->module);
130}
131
132static inline int crypto_is_larval(struct crypto_alg *alg)
133{
134 return alg->cra_flags & CRYPTO_ALG_LARVAL;
135}
136
137static inline int crypto_is_dead(struct crypto_alg *alg)
138{
139 return alg->cra_flags & CRYPTO_ALG_DEAD;
140}
141
142static inline int crypto_is_moribund(struct crypto_alg *alg)
143{
144 return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);
145}
146
147static inline void crypto_notify(unsigned long val, void *v)
148{
149 blocking_notifier_call_chain(&crypto_chain, val, v);
150}
151
152#endif /* _CRYPTO_INTERNAL_H */
153
1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Cryptographic API.
4 *
5 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
6 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
7 */
8#ifndef _CRYPTO_INTERNAL_H
9#define _CRYPTO_INTERNAL_H
10
11#include <crypto/algapi.h>
12#include <linux/completion.h>
13#include <linux/mm.h>
14#include <linux/highmem.h>
15#include <linux/interrupt.h>
16#include <linux/init.h>
17#include <linux/list.h>
18#include <linux/module.h>
19#include <linux/kernel.h>
20#include <linux/notifier.h>
21#include <linux/rwsem.h>
22#include <linux/slab.h>
23
24struct crypto_instance;
25struct crypto_template;
26
27struct crypto_larval {
28 struct crypto_alg alg;
29 struct crypto_alg *adult;
30 struct completion completion;
31 u32 mask;
32};
33
34extern struct list_head crypto_alg_list;
35extern struct rw_semaphore crypto_alg_sem;
36extern struct blocking_notifier_head crypto_chain;
37
38#ifdef CONFIG_PROC_FS
39void __init crypto_init_proc(void);
40void __exit crypto_exit_proc(void);
41#else
42static inline void crypto_init_proc(void)
43{ }
44static inline void crypto_exit_proc(void)
45{ }
46#endif
47
48static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg)
49{
50 return alg->cra_ctxsize;
51}
52
53static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
54{
55 return alg->cra_ctxsize;
56}
57
58struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
59struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
60
61int crypto_init_cipher_ops(struct crypto_tfm *tfm);
62int crypto_init_compress_ops(struct crypto_tfm *tfm);
63
64struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);
65void crypto_larval_kill(struct crypto_alg *alg);
66void crypto_alg_tested(const char *name, int err);
67
68void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
69 struct crypto_alg *nalg);
70void crypto_remove_final(struct list_head *list);
71void crypto_shoot_alg(struct crypto_alg *alg);
72struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
73 u32 mask);
74void *crypto_create_tfm(struct crypto_alg *alg,
75 const struct crypto_type *frontend);
76struct crypto_alg *crypto_find_alg(const char *alg_name,
77 const struct crypto_type *frontend,
78 u32 type, u32 mask);
79void *crypto_alloc_tfm(const char *alg_name,
80 const struct crypto_type *frontend, u32 type, u32 mask);
81
82int crypto_probing_notify(unsigned long val, void *v);
83
84unsigned int crypto_alg_extsize(struct crypto_alg *alg);
85
86int crypto_type_has_alg(const char *name, const struct crypto_type *frontend,
87 u32 type, u32 mask);
88
89static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)
90{
91 refcount_inc(&alg->cra_refcnt);
92 return alg;
93}
94
95static inline void crypto_alg_put(struct crypto_alg *alg)
96{
97 if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
98 alg->cra_destroy(alg);
99}
100
101static inline int crypto_tmpl_get(struct crypto_template *tmpl)
102{
103 return try_module_get(tmpl->module);
104}
105
106static inline void crypto_tmpl_put(struct crypto_template *tmpl)
107{
108 module_put(tmpl->module);
109}
110
111static inline int crypto_is_larval(struct crypto_alg *alg)
112{
113 return alg->cra_flags & CRYPTO_ALG_LARVAL;
114}
115
116static inline int crypto_is_dead(struct crypto_alg *alg)
117{
118 return alg->cra_flags & CRYPTO_ALG_DEAD;
119}
120
121static inline int crypto_is_moribund(struct crypto_alg *alg)
122{
123 return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);
124}
125
126static inline void crypto_notify(unsigned long val, void *v)
127{
128 blocking_notifier_call_chain(&crypto_chain, val, v);
129}
130
131#endif /* _CRYPTO_INTERNAL_H */
132