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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
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/list.h>
14#include <linux/module.h>
15#include <linux/notifier.h>
16#include <linux/numa.h>
17#include <linux/refcount.h>
18#include <linux/rwsem.h>
19#include <linux/sched.h>
20#include <linux/types.h>
21
22struct crypto_instance;
23struct crypto_template;
24
25struct crypto_larval {
26 struct crypto_alg alg;
27 struct crypto_alg *adult;
28 struct completion completion;
29 u32 mask;
30};
31
32enum {
33 CRYPTOA_UNSPEC,
34 CRYPTOA_ALG,
35 CRYPTOA_TYPE,
36 __CRYPTOA_MAX,
37};
38
39#define CRYPTOA_MAX (__CRYPTOA_MAX - 1)
40
41/* Maximum number of (rtattr) parameters for each template. */
42#define CRYPTO_MAX_ATTRS 32
43
44extern struct list_head crypto_alg_list;
45extern struct rw_semaphore crypto_alg_sem;
46extern struct blocking_notifier_head crypto_chain;
47
48#ifdef CONFIG_PROC_FS
49void __init crypto_init_proc(void);
50void __exit crypto_exit_proc(void);
51#else
52static inline void crypto_init_proc(void)
53{ }
54static inline void crypto_exit_proc(void)
55{ }
56#endif
57
58static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg)
59{
60 return alg->cra_ctxsize;
61}
62
63static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
64{
65 return alg->cra_ctxsize;
66}
67
68struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
69struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
70
71struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);
72void crypto_larval_kill(struct crypto_alg *alg);
73void crypto_alg_tested(const char *name, int err);
74
75void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
76 struct crypto_alg *nalg);
77void crypto_remove_final(struct list_head *list);
78void crypto_shoot_alg(struct crypto_alg *alg);
79struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
80 u32 mask);
81void *crypto_create_tfm_node(struct crypto_alg *alg,
82 const struct crypto_type *frontend, int node);
83
84static inline void *crypto_create_tfm(struct crypto_alg *alg,
85 const struct crypto_type *frontend)
86{
87 return crypto_create_tfm_node(alg, frontend, NUMA_NO_NODE);
88}
89
90struct crypto_alg *crypto_find_alg(const char *alg_name,
91 const struct crypto_type *frontend,
92 u32 type, u32 mask);
93
94void *crypto_alloc_tfm_node(const char *alg_name,
95 const struct crypto_type *frontend, u32 type, u32 mask,
96 int node);
97
98static inline void *crypto_alloc_tfm(const char *alg_name,
99 const struct crypto_type *frontend, u32 type, u32 mask)
100{
101 return crypto_alloc_tfm_node(alg_name, frontend, type, mask, NUMA_NO_NODE);
102}
103
104int crypto_probing_notify(unsigned long val, void *v);
105
106unsigned int crypto_alg_extsize(struct crypto_alg *alg);
107
108int crypto_type_has_alg(const char *name, const struct crypto_type *frontend,
109 u32 type, u32 mask);
110
111static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)
112{
113 refcount_inc(&alg->cra_refcnt);
114 return alg;
115}
116
117static inline void crypto_alg_put(struct crypto_alg *alg)
118{
119 if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
120 alg->cra_destroy(alg);
121}
122
123static inline int crypto_tmpl_get(struct crypto_template *tmpl)
124{
125 return try_module_get(tmpl->module);
126}
127
128static inline void crypto_tmpl_put(struct crypto_template *tmpl)
129{
130 module_put(tmpl->module);
131}
132
133static inline int crypto_is_larval(struct crypto_alg *alg)
134{
135 return alg->cra_flags & CRYPTO_ALG_LARVAL;
136}
137
138static inline int crypto_is_dead(struct crypto_alg *alg)
139{
140 return alg->cra_flags & CRYPTO_ALG_DEAD;
141}
142
143static inline int crypto_is_moribund(struct crypto_alg *alg)
144{
145 return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);
146}
147
148static inline void crypto_notify(unsigned long val, void *v)
149{
150 blocking_notifier_call_chain(&crypto_chain, val, v);
151}
152
153static inline void crypto_yield(u32 flags)
154{
155 if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
156 cond_resched();
157}
158
159#endif /* _CRYPTO_INTERNAL_H */
160