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/*
* Copyright 2019-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OSSL_INTERNAL_CORE_H
# define OSSL_INTERNAL_CORE_H
# pragma once
/*
* namespaces:
*
* ossl_method_ Core Method API
*/
/*
* construct an arbitrary method from a dispatch table found by looking
* up a match for the < operation_id, name, property > combination.
* constructor and destructor are the constructor and destructor for that
* arbitrary object.
*
* These objects are normally cached, unless the provider says not to cache.
* However, force_cache can be used to force caching whatever the provider
* says (for example, because the application knows better).
*/
typedef struct ossl_method_construct_method_st {
/* Get a temporary store */
void *(*get_tmp_store)(void *data);
/* Reserve the appropriate method store */
int (*lock_store)(void *store, void *data);
/* Unreserve the appropriate method store */
int (*unlock_store)(void *store, void *data);
/* Get an already existing method from a store */
void *(*get)(void *store, const OSSL_PROVIDER **prov, void *data);
/* Store a method in a store */
int (*put)(void *store, void *method, const OSSL_PROVIDER *prov,
const char *name, const char *propdef, void *data);
/* Construct a new method */
void *(*construct)(const OSSL_ALGORITHM *algodef, OSSL_PROVIDER *prov,
void *data);
/* Destruct a method */
void (*destruct)(void *method, void *data);
} OSSL_METHOD_CONSTRUCT_METHOD;
void *ossl_method_construct(OSSL_LIB_CTX *ctx, int operation_id,
OSSL_PROVIDER **provider_rw, int force_cache,
OSSL_METHOD_CONSTRUCT_METHOD *mcm, void *mcm_data);
void ossl_algorithm_do_all(OSSL_LIB_CTX *libctx, int operation_id,
OSSL_PROVIDER *provider,
int (*pre)(OSSL_PROVIDER *, int operation_id,
int no_store, void *data, int *result),
int (*reserve_store)(int no_store, void *data),
void (*fn)(OSSL_PROVIDER *provider,
const OSSL_ALGORITHM *algo,
int no_store, void *data),
int (*unreserve_store)(void *data),
int (*post)(OSSL_PROVIDER *, int operation_id,
int no_store, void *data, int *result),
void *data);
char *ossl_algorithm_get1_first_name(const OSSL_ALGORITHM *algo);
__owur int ossl_lib_ctx_write_lock(OSSL_LIB_CTX *ctx);
__owur int ossl_lib_ctx_read_lock(OSSL_LIB_CTX *ctx);
int ossl_lib_ctx_unlock(OSSL_LIB_CTX *ctx);
int ossl_lib_ctx_is_child(OSSL_LIB_CTX *ctx);
#endif
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