4 * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
5 * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
13 #ifndef _CRYPTO_INTERNAL_H
14 #define _CRYPTO_INTERNAL_H
16 #include <crypto/algapi.h>
17 #include <linux/completion.h>
19 #include <linux/highmem.h>
20 #include <linux/interrupt.h>
21 #include <linux/init.h>
22 #include <linux/list.h>
23 #include <linux/module.h>
24 #include <linux/kernel.h>
25 #include <linux/notifier.h>
26 #include <linux/rwsem.h>
27 #include <linux/slab.h>
29 struct crypto_instance;
30 struct crypto_template;
32 struct crypto_larval {
33 struct crypto_alg alg;
34 struct crypto_alg *adult;
35 struct completion completion;
39 extern struct list_head crypto_alg_list;
40 extern struct rw_semaphore crypto_alg_sem;
41 extern struct blocking_notifier_head crypto_chain;
44 void __init crypto_init_proc(void);
45 void __exit crypto_exit_proc(void);
47 static inline void crypto_init_proc(void)
49 static inline void crypto_exit_proc(void)
53 static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg)
55 return alg->cra_ctxsize;
58 static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg)
60 return alg->cra_ctxsize;
63 struct crypto_alg *crypto_mod_get(struct crypto_alg *alg);
64 struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
66 int crypto_init_cipher_ops(struct crypto_tfm *tfm);
67 int crypto_init_compress_ops(struct crypto_tfm *tfm);
69 struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask);
70 void crypto_larval_kill(struct crypto_alg *alg);
71 void crypto_alg_tested(const char *name, int err);
73 void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list,
74 struct crypto_alg *nalg);
75 void crypto_remove_final(struct list_head *list);
76 void crypto_shoot_alg(struct crypto_alg *alg);
77 struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
79 void *crypto_create_tfm(struct crypto_alg *alg,
80 const struct crypto_type *frontend);
81 struct crypto_alg *crypto_find_alg(const char *alg_name,
82 const struct crypto_type *frontend,
84 void *crypto_alloc_tfm(const char *alg_name,
85 const struct crypto_type *frontend, u32 type, u32 mask);
87 int crypto_probing_notify(unsigned long val, void *v);
89 unsigned int crypto_alg_extsize(struct crypto_alg *alg);
91 int crypto_type_has_alg(const char *name, const struct crypto_type *frontend,
94 static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg)
96 refcount_inc(&alg->cra_refcnt);
100 static inline void crypto_alg_put(struct crypto_alg *alg)
102 if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
103 alg->cra_destroy(alg);
106 static inline int crypto_tmpl_get(struct crypto_template *tmpl)
108 return try_module_get(tmpl->module);
111 static inline void crypto_tmpl_put(struct crypto_template *tmpl)
113 module_put(tmpl->module);
116 static inline int crypto_is_larval(struct crypto_alg *alg)
118 return alg->cra_flags & CRYPTO_ALG_LARVAL;
121 static inline int crypto_is_dead(struct crypto_alg *alg)
123 return alg->cra_flags & CRYPTO_ALG_DEAD;
126 static inline int crypto_is_moribund(struct crypto_alg *alg)
128 return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING);
131 static inline void crypto_notify(unsigned long val, void *v)
133 blocking_notifier_call_chain(&crypto_chain, val, v);
136 #endif /* _CRYPTO_INTERNAL_H */