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 <jmorris@intercode.com.au> | |
5cb1454b | 6 | * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au> |
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> |
adad556e | 13 | #include <linux/jump_label.h> |
5cb1454b | 14 | #include <linux/list.h> |
4cc7720c | 15 | #include <linux/module.h> |
2825982d | 16 | #include <linux/notifier.h> |
1dbb920e HX |
17 | #include <linux/numa.h> |
18 | #include <linux/refcount.h> | |
5cb1454b | 19 | #include <linux/rwsem.h> |
1dbb920e HX |
20 | #include <linux/sched.h> |
21 | #include <linux/types.h> | |
ccb778e1 | 22 | |
4cc7720c HX |
23 | struct crypto_instance; |
24 | struct crypto_template; | |
25 | ||
2825982d HX |
26 | struct crypto_larval { |
27 | struct crypto_alg alg; | |
28 | struct crypto_alg *adult; | |
29 | struct completion completion; | |
492e2b63 | 30 | u32 mask; |
adad556e | 31 | bool test_started; |
2825982d HX |
32 | }; |
33 | ||
5163ab50 HX |
34 | enum { |
35 | CRYPTOA_UNSPEC, | |
36 | CRYPTOA_ALG, | |
37 | CRYPTOA_TYPE, | |
38 | __CRYPTOA_MAX, | |
39 | }; | |
40 | ||
41 | #define CRYPTOA_MAX (__CRYPTOA_MAX - 1) | |
42 | ||
43 | /* Maximum number of (rtattr) parameters for each template. */ | |
44 | #define CRYPTO_MAX_ATTRS 32 | |
45 | ||
5cb1454b HX |
46 | extern struct list_head crypto_alg_list; |
47 | extern struct rw_semaphore crypto_alg_sem; | |
2825982d | 48 | extern struct blocking_notifier_head crypto_chain; |
5cb1454b | 49 | |
adad556e HX |
50 | DECLARE_STATIC_KEY_FALSE(crypto_boot_test_finished); |
51 | ||
1da177e4 LT |
52 | #ifdef CONFIG_PROC_FS |
53 | void __init crypto_init_proc(void); | |
cce9e06d | 54 | void __exit crypto_exit_proc(void); |
1da177e4 LT |
55 | #else |
56 | static inline void crypto_init_proc(void) | |
57 | { } | |
cce9e06d HX |
58 | static inline void crypto_exit_proc(void) |
59 | { } | |
1da177e4 LT |
60 | #endif |
61 | ||
f1ddcaf3 | 62 | static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg) |
fbdae9f3 | 63 | { |
f1ddcaf3 | 64 | return alg->cra_ctxsize; |
fbdae9f3 HX |
65 | } |
66 | ||
f1ddcaf3 | 67 | static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg) |
fbdae9f3 HX |
68 | { |
69 | return alg->cra_ctxsize; | |
70 | } | |
71 | ||
2825982d | 72 | struct crypto_alg *crypto_mod_get(struct crypto_alg *alg); |
492e2b63 | 73 | struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask); |
2825982d | 74 | |
73d3864a | 75 | struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask); |
b9c55aa4 | 76 | void crypto_larval_kill(struct crypto_alg *alg); |
adad556e | 77 | void crypto_wait_for_test(struct crypto_larval *larval); |
73d3864a | 78 | void crypto_alg_tested(const char *name, int err); |
2825982d | 79 | |
89b596ba SK |
80 | void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list, |
81 | struct crypto_alg *nalg); | |
22e5b20b | 82 | void crypto_remove_final(struct list_head *list); |
6603523b | 83 | void crypto_shoot_alg(struct crypto_alg *alg); |
27d2a330 HX |
84 | struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type, |
85 | u32 mask); | |
7bc13b5b BS |
86 | void *crypto_create_tfm_node(struct crypto_alg *alg, |
87 | const struct crypto_type *frontend, int node); | |
88 | ||
89 | static inline void *crypto_create_tfm(struct crypto_alg *alg, | |
90 | const struct crypto_type *frontend) | |
91 | { | |
92 | return crypto_create_tfm_node(alg, frontend, NUMA_NO_NODE); | |
93 | } | |
94 | ||
d06854f0 HX |
95 | struct crypto_alg *crypto_find_alg(const char *alg_name, |
96 | const struct crypto_type *frontend, | |
97 | u32 type, u32 mask); | |
7bc13b5b BS |
98 | |
99 | void *crypto_alloc_tfm_node(const char *alg_name, | |
100 | const struct crypto_type *frontend, u32 type, u32 mask, | |
101 | int node); | |
102 | ||
103 | static inline void *crypto_alloc_tfm(const char *alg_name, | |
104 | const struct crypto_type *frontend, u32 type, u32 mask) | |
105 | { | |
106 | return crypto_alloc_tfm_node(alg_name, frontend, type, mask, NUMA_NO_NODE); | |
107 | } | |
4cc7720c | 108 | |
73d3864a | 109 | int crypto_probing_notify(unsigned long val, void *v); |
2825982d | 110 | |
38d21433 HX |
111 | unsigned int crypto_alg_extsize(struct crypto_alg *alg); |
112 | ||
f2aefdab HX |
113 | int crypto_type_has_alg(const char *name, const struct crypto_type *frontend, |
114 | u32 type, u32 mask); | |
115 | ||
939e1779 HX |
116 | static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg) |
117 | { | |
ce8614a3 | 118 | refcount_inc(&alg->cra_refcnt); |
939e1779 HX |
119 | return alg; |
120 | } | |
121 | ||
6bfd4809 HX |
122 | static inline void crypto_alg_put(struct crypto_alg *alg) |
123 | { | |
ce8614a3 | 124 | if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy) |
6bfd4809 HX |
125 | alg->cra_destroy(alg); |
126 | } | |
127 | ||
4cc7720c HX |
128 | static inline int crypto_tmpl_get(struct crypto_template *tmpl) |
129 | { | |
130 | return try_module_get(tmpl->module); | |
131 | } | |
132 | ||
133 | static inline void crypto_tmpl_put(struct crypto_template *tmpl) | |
134 | { | |
135 | module_put(tmpl->module); | |
136 | } | |
137 | ||
2825982d HX |
138 | static inline int crypto_is_larval(struct crypto_alg *alg) |
139 | { | |
140 | return alg->cra_flags & CRYPTO_ALG_LARVAL; | |
141 | } | |
142 | ||
6bfd4809 HX |
143 | static inline int crypto_is_dead(struct crypto_alg *alg) |
144 | { | |
145 | return alg->cra_flags & CRYPTO_ALG_DEAD; | |
146 | } | |
147 | ||
148 | static inline int crypto_is_moribund(struct crypto_alg *alg) | |
149 | { | |
150 | return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING); | |
151 | } | |
152 | ||
73d3864a | 153 | static inline void crypto_notify(unsigned long val, void *v) |
2825982d | 154 | { |
73d3864a | 155 | blocking_notifier_call_chain(&crypto_chain, val, v); |
2825982d HX |
156 | } |
157 | ||
1dbb920e HX |
158 | static inline void crypto_yield(u32 flags) |
159 | { | |
160 | if (flags & CRYPTO_TFM_REQ_MAY_SLEEP) | |
161 | cond_resched(); | |
162 | } | |
163 | ||
adad556e HX |
164 | static inline int crypto_is_test_larval(struct crypto_larval *larval) |
165 | { | |
166 | return larval->alg.cra_driver_name[0]; | |
167 | } | |
168 | ||
1da177e4 LT |
169 | #endif /* _CRYPTO_INTERNAL_H */ |
170 |