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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * Cryptographic API.
- *
- * Copyright (c) 2002 James Morris <[email protected]>
- * Copyright (c) 2005 Herbert Xu <[email protected]>
- */
- #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;
- #ifdef CONFIG_CRYPTO_MANAGER_DISABLE_TESTS
- static inline bool crypto_boot_test_finished(void)
- {
- return true;
- }
- static inline void set_crypto_boot_test_finished(void)
- {
- }
- #else
- DECLARE_STATIC_KEY_FALSE(__crypto_boot_test_finished);
- static inline bool crypto_boot_test_finished(void)
- {
- return static_branch_likely(&__crypto_boot_test_finished);
- }
- static inline void set_crypto_boot_test_finished(void)
- {
- static_branch_enable(&__crypto_boot_test_finished);
- }
- #endif /* !CONFIG_CRYPTO_MANAGER_DISABLE_TESTS */
- #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 */
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