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 */