1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
6 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
8 #ifndef _CRYPTO_INTERNAL_H
9 #define _CRYPTO_INTERNAL_H
11 #include <crypto/algapi.h>
12 #include <linux/completion.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>
24 struct crypto_instance;
25 struct crypto_template;
27 struct crypto_larval {
28 struct crypto_alg alg;
29 struct crypto_alg *adult;
30 struct completion completion;
34 extern struct list_head crypto_alg_list;
35 extern struct rw_semaphore crypto_alg_sem;
36 extern struct blocking_notifier_head crypto_chain;
39 void __init crypto_init_proc(void);
40 void __exit crypto_exit_proc(void);
42 static inline void crypto_init_proc(void)
44 static inline void crypto_exit_proc(void)
48 static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg)
50 return alg->cra_ctxsize;
53 static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
55 return alg->cra_ctxsize;
58 struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
59 struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
61 struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);
62 void crypto_larval_kill(struct crypto_alg *alg);
63 void crypto_alg_tested(const char *name, int err);
65 void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
66 struct crypto_alg *nalg);
67 void crypto_remove_final(struct list_head *list);
68 struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
70 void *crypto_create_tfm(struct crypto_alg *alg,
71 const struct crypto_type *frontend);
72 struct crypto_alg *crypto_find_alg(const char *alg_name,
73 const struct crypto_type *frontend,
75 void *crypto_alloc_tfm(const char *alg_name,
76 const struct crypto_type *frontend, u32 type, u32 mask);
78 int crypto_probing_notify(unsigned long val, void *v);
80 unsigned int crypto_alg_extsize(struct crypto_alg *alg);
82 int crypto_type_has_alg(const char *name, const struct crypto_type *frontend,
85 static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)
87 refcount_inc(&alg->cra_refcnt);
91 static inline void crypto_alg_put(struct crypto_alg *alg)
93 if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
94 alg->cra_destroy(alg);
97 static inline int crypto_tmpl_get(struct crypto_template *tmpl)
99 return try_module_get(tmpl->module);
102 static inline void crypto_tmpl_put(struct crypto_template *tmpl)
104 module_put(tmpl->module);
107 static inline int crypto_is_larval(struct crypto_alg *alg)
109 return alg->cra_flags & CRYPTO_ALG_LARVAL;
112 static inline int crypto_is_dead(struct crypto_alg *alg)
114 return alg->cra_flags & CRYPTO_ALG_DEAD;
117 static inline int crypto_is_moribund(struct crypto_alg *alg)
119 return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);
122 static inline void crypto_notify(unsigned long val, void *v)
124 blocking_notifier_call_chain(&crypto_chain, val, v);
127 #endif /* _CRYPTO_INTERNAL_H */