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Commit | Line | Data |
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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
1da177e4 LT |
2 | /* |
3 | * Cryptographic API. | |
4 | * | |
5 | * Copyright (c) 2002 James Morris <[email protected]> | |
5cb1454b | 6 | * Copyright (c) 2005 Herbert Xu <[email protected]> |
1da177e4 LT |
7 | */ |
8 | #ifndef _CRYPTO_INTERNAL_H | |
9 | #define _CRYPTO_INTERNAL_H | |
cce9e06d HX |
10 | |
11 | #include <crypto/algapi.h> | |
2825982d | 12 | #include <linux/completion.h> |
5cb1454b | 13 | #include <linux/list.h> |
4cc7720c | 14 | #include <linux/module.h> |
2825982d | 15 | #include <linux/notifier.h> |
1dbb920e HX |
16 | #include <linux/numa.h> |
17 | #include <linux/refcount.h> | |
5cb1454b | 18 | #include <linux/rwsem.h> |
1dbb920e HX |
19 | #include <linux/sched.h> |
20 | #include <linux/types.h> | |
ccb778e1 | 21 | |
4cc7720c HX |
22 | struct crypto_instance; |
23 | struct crypto_template; | |
24 | ||
2825982d HX |
25 | struct crypto_larval { |
26 | struct crypto_alg alg; | |
27 | struct crypto_alg *adult; | |
28 | struct completion completion; | |
492e2b63 | 29 | u32 mask; |
2825982d HX |
30 | }; |
31 | ||
5cb1454b HX |
32 | extern struct list_head crypto_alg_list; |
33 | extern struct rw_semaphore crypto_alg_sem; | |
2825982d | 34 | extern struct blocking_notifier_head crypto_chain; |
5cb1454b | 35 | |
1da177e4 LT |
36 | #ifdef CONFIG_PROC_FS |
37 | void __init crypto_init_proc(void); | |
cce9e06d | 38 | void __exit crypto_exit_proc(void); |
1da177e4 LT |
39 | #else |
40 | static inline void crypto_init_proc(void) | |
41 | { } | |
cce9e06d HX |
42 | static inline void crypto_exit_proc(void) |
43 | { } | |
1da177e4 LT |
44 | #endif |
45 | ||
f1ddcaf3 | 46 | static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg) |
fbdae9f3 | 47 | { |
f1ddcaf3 | 48 | return alg->cra_ctxsize; |
fbdae9f3 HX |
49 | } |
50 | ||
f1ddcaf3 | 51 | static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg) |
fbdae9f3 HX |
52 | { |
53 | return alg->cra_ctxsize; | |
54 | } | |
55 | ||
2825982d | 56 | struct crypto_alg *crypto_mod_get(struct crypto_alg *alg); |
492e2b63 | 57 | struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask); |
2825982d | 58 | |
73d3864a | 59 | struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask); |
b9c55aa4 | 60 | void crypto_larval_kill(struct crypto_alg *alg); |
73d3864a | 61 | void crypto_alg_tested(const char *name, int err); |
2825982d | 62 | |
89b596ba SK |
63 | void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list, |
64 | struct crypto_alg *nalg); | |
22e5b20b | 65 | void crypto_remove_final(struct list_head *list); |
6603523b | 66 | void crypto_shoot_alg(struct crypto_alg *alg); |
27d2a330 HX |
67 | struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type, |
68 | u32 mask); | |
7bc13b5b BS |
69 | void *crypto_create_tfm_node(struct crypto_alg *alg, |
70 | const struct crypto_type *frontend, int node); | |
71 | ||
72 | static inline void *crypto_create_tfm(struct crypto_alg *alg, | |
73 | const struct crypto_type *frontend) | |
74 | { | |
75 | return crypto_create_tfm_node(alg, frontend, NUMA_NO_NODE); | |
76 | } | |
77 | ||
d06854f0 HX |
78 | struct crypto_alg *crypto_find_alg(const char *alg_name, |
79 | const struct crypto_type *frontend, | |
80 | u32 type, u32 mask); | |
7bc13b5b BS |
81 | |
82 | void *crypto_alloc_tfm_node(const char *alg_name, | |
83 | const struct crypto_type *frontend, u32 type, u32 mask, | |
84 | int node); | |
85 | ||
86 | static inline void *crypto_alloc_tfm(const char *alg_name, | |
87 | const struct crypto_type *frontend, u32 type, u32 mask) | |
88 | { | |
89 | return crypto_alloc_tfm_node(alg_name, frontend, type, mask, NUMA_NO_NODE); | |
90 | } | |
4cc7720c | 91 | |
73d3864a | 92 | int crypto_probing_notify(unsigned long val, void *v); |
2825982d | 93 | |
38d21433 HX |
94 | unsigned int crypto_alg_extsize(struct crypto_alg *alg); |
95 | ||
f2aefdab HX |
96 | int crypto_type_has_alg(const char *name, const struct crypto_type *frontend, |
97 | u32 type, u32 mask); | |
98 | ||
939e1779 HX |
99 | static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg) |
100 | { | |
ce8614a3 | 101 | refcount_inc(&alg->cra_refcnt); |
939e1779 HX |
102 | return alg; |
103 | } | |
104 | ||
6bfd4809 HX |
105 | static inline void crypto_alg_put(struct crypto_alg *alg) |
106 | { | |
ce8614a3 | 107 | if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy) |
6bfd4809 HX |
108 | alg->cra_destroy(alg); |
109 | } | |
110 | ||
4cc7720c HX |
111 | static inline int crypto_tmpl_get(struct crypto_template *tmpl) |
112 | { | |
113 | return try_module_get(tmpl->module); | |
114 | } | |
115 | ||
116 | static inline void crypto_tmpl_put(struct crypto_template *tmpl) | |
117 | { | |
118 | module_put(tmpl->module); | |
119 | } | |
120 | ||
2825982d HX |
121 | static inline int crypto_is_larval(struct crypto_alg *alg) |
122 | { | |
123 | return alg->cra_flags & CRYPTO_ALG_LARVAL; | |
124 | } | |
125 | ||
6bfd4809 HX |
126 | static inline int crypto_is_dead(struct crypto_alg *alg) |
127 | { | |
128 | return alg->cra_flags & CRYPTO_ALG_DEAD; | |
129 | } | |
130 | ||
131 | static inline int crypto_is_moribund(struct crypto_alg *alg) | |
132 | { | |
133 | return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING); | |
134 | } | |
135 | ||
73d3864a | 136 | static inline void crypto_notify(unsigned long val, void *v) |
2825982d | 137 | { |
73d3864a | 138 | blocking_notifier_call_chain(&crypto_chain, val, v); |
2825982d HX |
139 | } |
140 | ||
1dbb920e HX |
141 | static inline void crypto_yield(u32 flags) |
142 | { | |
143 | if (flags & CRYPTO_TFM_REQ_MAY_SLEEP) | |
144 | cond_resched(); | |
145 | } | |
146 | ||
1da177e4 LT |
147 | #endif /* _CRYPTO_INTERNAL_H */ |
148 |