openssl/include/internal/property.h
Richard Levitte dc010ca6ec CORE: Encure that cached fetches can be done per provider
This mostly entails passing around a provider pointer, and handling
queries that includes a pointer to a provider, where NULL means "any".

This also means that there's a need to pass the provider pointer, not
just down to the cache functions, but also be able to get it from
ossl_method_store_fetch().  To this end, that function's OSSL_PROVIDER
pointer argument is modified to be a pointer reference, so the
function can answer back what provider the method comes from.

Test added.

Fixes #16614

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16725)
2021-10-27 12:41:15 +02:00

94 lines
4.2 KiB
C

/*
* Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
* Copyright (c) 2019, Oracle and/or its affiliates. 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_PROPERTY_H
# define OSSL_INTERNAL_PROPERTY_H
# pragma once
# include "internal/cryptlib.h"
typedef struct ossl_method_store_st OSSL_METHOD_STORE;
typedef struct ossl_property_list_st OSSL_PROPERTY_LIST;
typedef enum {
OSSL_PROPERTY_TYPE_STRING, OSSL_PROPERTY_TYPE_NUMBER,
OSSL_PROPERTY_TYPE_VALUE_UNDEFINED
} OSSL_PROPERTY_TYPE;
typedef struct ossl_property_definition_st OSSL_PROPERTY_DEFINITION;
/* Initialisation */
int ossl_property_parse_init(OSSL_LIB_CTX *ctx);
/* Property definition parser */
OSSL_PROPERTY_LIST *ossl_parse_property(OSSL_LIB_CTX *ctx, const char *defn);
/* Property query parser */
OSSL_PROPERTY_LIST *ossl_parse_query(OSSL_LIB_CTX *ctx, const char *s,
int create_values);
/* Property checker of query vs definition */
int ossl_property_match_count(const OSSL_PROPERTY_LIST *query,
const OSSL_PROPERTY_LIST *defn);
int ossl_property_is_enabled(OSSL_LIB_CTX *ctx, const char *property_name,
const OSSL_PROPERTY_LIST *prop_list);
/* Free a parsed property list */
void ossl_property_free(OSSL_PROPERTY_LIST *p);
/* Get a property from a property list */
const OSSL_PROPERTY_DEFINITION *
ossl_property_find_property(const OSSL_PROPERTY_LIST *list,
OSSL_LIB_CTX *libctx, const char *name);
OSSL_PROPERTY_TYPE ossl_property_get_type(const OSSL_PROPERTY_DEFINITION *prop);
const char *ossl_property_get_string_value(OSSL_LIB_CTX *libctx,
const OSSL_PROPERTY_DEFINITION *prop);
int64_t ossl_property_get_number_value(const OSSL_PROPERTY_DEFINITION *prop);
/* Implementation store functions */
OSSL_METHOD_STORE *ossl_method_store_new(OSSL_LIB_CTX *ctx);
void ossl_method_store_free(OSSL_METHOD_STORE *store);
int ossl_method_store_add(OSSL_METHOD_STORE *store, const OSSL_PROVIDER *prov,
int nid, const char *properties, void *method,
int (*method_up_ref)(void *),
void (*method_destruct)(void *));
int ossl_method_store_remove(OSSL_METHOD_STORE *store, int nid,
const void *method);
void ossl_method_store_do_all(OSSL_METHOD_STORE *store,
void (*fn)(int id, void *method, void *fnarg),
void *fnarg);
int ossl_method_store_fetch(OSSL_METHOD_STORE *store,
int nid, const char *prop_query,
const OSSL_PROVIDER **prov, void **method);
/* Get the global properties associate with the specified library context */
OSSL_PROPERTY_LIST **ossl_ctx_global_properties(OSSL_LIB_CTX *ctx,
int loadconfig);
/* property query cache functions */
int ossl_method_store_cache_get(OSSL_METHOD_STORE *store, OSSL_PROVIDER *prov,
int nid, const char *prop_query, void **result);
int ossl_method_store_cache_set(OSSL_METHOD_STORE *store, OSSL_PROVIDER *prov,
int nid, const char *prop_query, void *result,
int (*method_up_ref)(void *),
void (*method_destruct)(void *));
__owur int ossl_method_store_flush_cache(OSSL_METHOD_STORE *store, int all);
/* Merge two property queries together */
OSSL_PROPERTY_LIST *ossl_property_merge(const OSSL_PROPERTY_LIST *a,
const OSSL_PROPERTY_LIST *b);
size_t ossl_property_list_to_string(OSSL_LIB_CTX *ctx,
const OSSL_PROPERTY_LIST *list, char *buf,
size_t bufsize);
int ossl_global_properties_no_mirrored(OSSL_LIB_CTX *libctx);
void ossl_global_properties_stop_mirroring(OSSL_LIB_CTX *libctx);
#endif