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>
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>
22 struct crypto_instance;
23 struct crypto_template;
25 struct crypto_larval {
26 struct crypto_alg alg;
27 struct crypto_alg *adult;
28 struct completion completion;
39 #define CRYPTOA_MAX (__CRYPTOA_MAX - 1)
41 /* Maximum number of (rtattr) parameters for each template. */
42 #define CRYPTO_MAX_ATTRS 32
44 extern struct list_head crypto_alg_list;
45 extern struct rw_semaphore crypto_alg_sem;
46 extern struct blocking_notifier_head crypto_chain;
49 void __init crypto_init_proc(void);
50 void __exit crypto_exit_proc(void);
52 static inline void crypto_init_proc(void)
54 static inline void crypto_exit_proc(void)
58 static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg)
60 return alg->cra_ctxsize;
63 static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
65 return alg->cra_ctxsize;
68 struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
69 struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
71 struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);
72 void crypto_larval_kill(struct crypto_alg *alg);
73 void crypto_alg_tested(const char *name, int err);
75 void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
76 struct crypto_alg *nalg);
77 void crypto_remove_final(struct list_head *list);
78 void crypto_shoot_alg(struct crypto_alg *alg);
79 struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
81 void *crypto_create_tfm_node(struct crypto_alg *alg,
82 const struct crypto_type *frontend, int node);
84 static inline void *crypto_create_tfm(struct crypto_alg *alg,
85 const struct crypto_type *frontend)
87 return crypto_create_tfm_node(alg, frontend, NUMA_NO_NODE);
90 struct crypto_alg *crypto_find_alg(const char *alg_name,
91 const struct crypto_type *frontend,
94 void *crypto_alloc_tfm_node(const char *alg_name,
95 const struct crypto_type *frontend, u32 type, u32 mask,
98 static inline void *crypto_alloc_tfm(const char *alg_name,
99 const struct crypto_type *frontend, u32 type, u32 mask)
101 return crypto_alloc_tfm_node(alg_name, frontend, type, mask, NUMA_NO_NODE);
104 int crypto_probing_notify(unsigned long val, void *v);
106 unsigned int crypto_alg_extsize(struct crypto_alg *alg);
108 int crypto_type_has_alg(const char *name, const struct crypto_type *frontend,
111 static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)
113 refcount_inc(&alg->cra_refcnt);
117 static inline void crypto_alg_put(struct crypto_alg *alg)
119 if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
120 alg->cra_destroy(alg);
123 static inline int crypto_tmpl_get(struct crypto_template *tmpl)
125 return try_module_get(tmpl->module);
128 static inline void crypto_tmpl_put(struct crypto_template *tmpl)
130 module_put(tmpl->module);
133 static inline int crypto_is_larval(struct crypto_alg *alg)
135 return alg->cra_flags & CRYPTO_ALG_LARVAL;
138 static inline int crypto_is_dead(struct crypto_alg *alg)
140 return alg->cra_flags & CRYPTO_ALG_DEAD;
143 static inline int crypto_is_moribund(struct crypto_alg *alg)
145 return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);
148 static inline void crypto_notify(unsigned long val, void *v)
150 blocking_notifier_call_chain(&crypto_chain, val, v);
153 static inline void crypto_yield(u32 flags)
155 if (flags & CRYPTO_TFM_REQ_MAY_SLEEP)
159 #endif /* _CRYPTO_INTERNAL_H */