| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * Cryptographic API. |
| * |
| * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> |
| * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au> |
| */ |
| #ifndef _CRYPTO_INTERNAL_H |
| #define _CRYPTO_INTERNAL_H |
| |
| #include <crypto/algapi.h> |
| #include <linux/completion.h> |
| #include <linux/jump_label.h> |
| #include <linux/list.h> |
| #include <linux/module.h> |
| #include <linux/notifier.h> |
| #include <linux/numa.h> |
| #include <linux/refcount.h> |
| #include <linux/rwsem.h> |
| #include <linux/sched.h> |
| #include <linux/types.h> |
| |
| struct crypto_instance; |
| struct crypto_template; |
| |
| struct crypto_larval { |
| struct crypto_alg alg; |
| struct crypto_alg *adult; |
| struct completion completion; |
| u32 mask; |
| bool test_started; |
| }; |
| |
| enum { |
| CRYPTOA_UNSPEC, |
| CRYPTOA_ALG, |
| CRYPTOA_TYPE, |
| __CRYPTOA_MAX, |
| }; |
| |
| #define CRYPTOA_MAX (__CRYPTOA_MAX - 1) |
| |
| /* Maximum number of (rtattr) parameters for each template. */ |
| #define CRYPTO_MAX_ATTRS 32 |
| |
| extern struct list_head crypto_alg_list; |
| extern struct rw_semaphore crypto_alg_sem; |
| extern struct blocking_notifier_head crypto_chain; |
| |
| DECLARE_STATIC_KEY_FALSE(crypto_boot_test_finished); |
| |
| #ifdef CONFIG_PROC_FS |
| void __init crypto_init_proc(void); |
| void __exit crypto_exit_proc(void); |
| #else |
| static inline void crypto_init_proc(void) |
| { } |
| static inline void crypto_exit_proc(void) |
| { } |
| #endif |
| |
| static inline unsigned int crypto_cipher_ctxsize(struct crypto_alg *alg) |
| { |
| return alg->cra_ctxsize; |
| } |
| |
| static inline unsigned int crypto_compress_ctxsize(struct crypto_alg *alg) |
| { |
| return alg->cra_ctxsize; |
| } |
| |
| struct crypto_alg *crypto_mod_get(struct crypto_alg *alg); |
| struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask); |
| |
| struct crypto_larval *crypto_larval_alloc(const char *name, u32 type, u32 mask); |
| void crypto_larval_kill(struct crypto_alg *alg); |
| void crypto_wait_for_test(struct crypto_larval *larval); |
| void crypto_alg_tested(const char *name, int err); |
| |
| void crypto_remove_spawns(struct crypto_alg *alg, struct list_head *list, |
| struct crypto_alg *nalg); |
| void crypto_remove_final(struct list_head *list); |
| void crypto_shoot_alg(struct crypto_alg *alg); |
| struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type, |
| u32 mask); |
| void *crypto_create_tfm_node(struct crypto_alg *alg, |
| const struct crypto_type *frontend, int node); |
| |
| static inline void *crypto_create_tfm(struct crypto_alg *alg, |
| const struct crypto_type *frontend) |
| { |
| return crypto_create_tfm_node(alg, frontend, NUMA_NO_NODE); |
| } |
| |
| struct crypto_alg *crypto_find_alg(const char *alg_name, |
| const struct crypto_type *frontend, |
| u32 type, u32 mask); |
| |
| void *crypto_alloc_tfm_node(const char *alg_name, |
| const struct crypto_type *frontend, u32 type, u32 mask, |
| int node); |
| |
| static inline void *crypto_alloc_tfm(const char *alg_name, |
| const struct crypto_type *frontend, u32 type, u32 mask) |
| { |
| return crypto_alloc_tfm_node(alg_name, frontend, type, mask, NUMA_NO_NODE); |
| } |
| |
| int crypto_probing_notify(unsigned long val, void *v); |
| |
| unsigned int crypto_alg_extsize(struct crypto_alg *alg); |
| |
| int crypto_type_has_alg(const char *name, const struct crypto_type *frontend, |
| u32 type, u32 mask); |
| |
| static inline struct crypto_alg *crypto_alg_get(struct crypto_alg *alg) |
| { |
| refcount_inc(&alg->cra_refcnt); |
| return alg; |
| } |
| |
| static inline void crypto_alg_put(struct crypto_alg *alg) |
| { |
| if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy) |
| alg->cra_destroy(alg); |
| } |
| |
| static inline int crypto_tmpl_get(struct crypto_template *tmpl) |
| { |
| return try_module_get(tmpl->module); |
| } |
| |
| static inline void crypto_tmpl_put(struct crypto_template *tmpl) |
| { |
| module_put(tmpl->module); |
| } |
| |
| static inline int crypto_is_larval(struct crypto_alg *alg) |
| { |
| return alg->cra_flags & CRYPTO_ALG_LARVAL; |
| } |
| |
| static inline int crypto_is_dead(struct crypto_alg *alg) |
| { |
| return alg->cra_flags & CRYPTO_ALG_DEAD; |
| } |
| |
| static inline int crypto_is_moribund(struct crypto_alg *alg) |
| { |
| return alg->cra_flags & (CRYPTO_ALG_DEAD | CRYPTO_ALG_DYING); |
| } |
| |
| static inline void crypto_notify(unsigned long val, void *v) |
| { |
| blocking_notifier_call_chain(&crypto_chain, val, v); |
| } |
| |
| static inline void crypto_yield(u32 flags) |
| { |
| if (flags & CRYPTO_TFM_REQ_MAY_SLEEP) |
| cond_resched(); |
| } |
| |
| static inline int crypto_is_test_larval(struct crypto_larval *larval) |
| { |
| return larval->alg.cra_driver_name[0]; |
| } |
| |
| #endif /* _CRYPTO_INTERNAL_H */ |
| |