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> |
1da177e4 LT |
13 | #include <linux/mm.h> |
14 | #include <linux/highmem.h> | |
15 | #include <linux/interrupt.h> | |
16 | #include <linux/init.h> | |
5cb1454b | 17 | #include <linux/list.h> |
4cc7720c | 18 | #include <linux/module.h> |
fbdae9f3 | 19 | #include <linux/kernel.h> |
2825982d | 20 | #include <linux/notifier.h> |
5cb1454b | 21 | #include <linux/rwsem.h> |
64baf3cf | 22 | #include <linux/slab.h> |
ccb778e1 | 23 | |
4cc7720c HX |
24 | struct crypto_instance; |
25 | struct crypto_template; | |
26 | ||
2825982d HX |
27 | struct crypto_larval { |
28 | struct crypto_alg alg; | |
29 | struct crypto_alg *adult; | |
30 | struct completion completion; | |
492e2b63 | 31 | u32 mask; |
2825982d HX |
32 | }; |
33 | ||
5cb1454b HX |
34 | extern struct list_head crypto_alg_list; |
35 | extern struct rw_semaphore crypto_alg_sem; | |
2825982d | 36 | extern struct blocking_notifier_head crypto_chain; |
5cb1454b | 37 | |
1da177e4 LT |
38 | #ifdef CONFIG_PROC_FS |
39 | void __init crypto_init_proc(void); | |
cce9e06d | 40 | void __exit crypto_exit_proc(void); |
1da177e4 LT |
41 | #else |
42 | static inline void crypto_init_proc(void) | |
43 | { } | |
cce9e06d HX |
44 | static inline void crypto_exit_proc(void) |
45 | { } | |
1da177e4 LT |
46 | #endif |
47 | ||
f1ddcaf3 | 48 | static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg) |
fbdae9f3 | 49 | { |
f1ddcaf3 | 50 | return alg->cra_ctxsize; |
fbdae9f3 HX |
51 | } |
52 | ||
f1ddcaf3 | 53 | static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg) |
fbdae9f3 HX |
54 | { |
55 | return alg->cra_ctxsize; | |
56 | } | |
57 | ||
2825982d | 58 | struct crypto_alg *crypto_mod_get(struct crypto_alg *alg); |
492e2b63 | 59 | struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask); |
2825982d | 60 | |
73d3864a | 61 | struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask); |
b9c55aa4 | 62 | void crypto_larval_kill(struct crypto_alg *alg); |
73d3864a | 63 | void crypto_alg_tested(const char *name, int err); |
2825982d | 64 | |
89b596ba SK |
65 | void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list, |
66 | struct crypto_alg *nalg); | |
22e5b20b | 67 | void crypto_remove_final(struct list_head *list); |
27d2a330 HX |
68 | struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type, |
69 | u32 mask); | |
3f683d61 HX |
70 | void *crypto_create_tfm(struct crypto_alg *alg, |
71 | const struct crypto_type *frontend); | |
d06854f0 HX |
72 | struct crypto_alg *crypto_find_alg(const char *alg_name, |
73 | const struct crypto_type *frontend, | |
74 | u32 type, u32 mask); | |
3f683d61 HX |
75 | void *crypto_alloc_tfm(const char *alg_name, |
76 | const struct crypto_type *frontend, u32 type, u32 mask); | |
4cc7720c | 77 | |
73d3864a | 78 | int crypto_probing_notify(unsigned long val, void *v); |
2825982d | 79 | |
38d21433 HX |
80 | unsigned int crypto_alg_extsize(struct crypto_alg *alg); |
81 | ||
f2aefdab HX |
82 | int crypto_type_has_alg(const char *name, const struct crypto_type *frontend, |
83 | u32 type, u32 mask); | |
84 | ||
939e1779 HX |
85 | static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg) |
86 | { | |
ce8614a3 | 87 | refcount_inc(&alg->cra_refcnt); |
939e1779 HX |
88 | return alg; |
89 | } | |
90 | ||
6bfd4809 HX |
91 | static inline void crypto_alg_put(struct crypto_alg *alg) |
92 | { | |
ce8614a3 | 93 | if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy) |
6bfd4809 HX |
94 | alg->cra_destroy(alg); |
95 | } | |
96 | ||
4cc7720c HX |
97 | static inline int crypto_tmpl_get(struct crypto_template *tmpl) |
98 | { | |
99 | return try_module_get(tmpl->module); | |
100 | } | |
101 | ||
102 | static inline void crypto_tmpl_put(struct crypto_template *tmpl) | |
103 | { | |
104 | module_put(tmpl->module); | |
105 | } | |
106 | ||
2825982d HX |
107 | static inline int crypto_is_larval(struct crypto_alg *alg) |
108 | { | |
109 | return alg->cra_flags & CRYPTO_ALG_LARVAL; | |
110 | } | |
111 | ||
6bfd4809 HX |
112 | static inline int crypto_is_dead(struct crypto_alg *alg) |
113 | { | |
114 | return alg->cra_flags & CRYPTO_ALG_DEAD; | |
115 | } | |
116 | ||
117 | static inline int crypto_is_moribund(struct crypto_alg *alg) | |
118 | { | |
119 | return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING); | |
120 | } | |
121 | ||
73d3864a | 122 | static inline void crypto_notify(unsigned long val, void *v) |
2825982d | 123 | { |
73d3864a | 124 | blocking_notifier_call_chain(&crypto_chain, val, v); |
2825982d HX |
125 | } |
126 | ||
1da177e4 LT |
127 | #endif /* _CRYPTO_INTERNAL_H */ |
128 |