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5a29b6286f
When a desired algorithm wasn't available, we didn't register anywhere that an attempt had been made, with the result that next time the same attempt was made, the whole process would be done again. To avoid this churn, we register a bit for each operation that has been queried in the libcrypto provider object, and test it before trying the same query and method construction loop again. If course, if the provider has told us not to cache, we don't register this bit. Fixes #11814 Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11842)
63 lines
2.5 KiB
C
63 lines
2.5 KiB
C
/*
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* Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef OSSL_INTERNAL_CORE_H
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# define OSSL_INTERNAL_CORE_H
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/*
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* namespaces:
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*
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* ossl_method_ Core Method API
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*/
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/*
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* construct an arbitrary method from a dispatch table found by looking
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* up a match for the < operation_id, name, property > combination.
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* constructor and destructor are the constructor and destructor for that
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* arbitrary object.
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*
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* These objects are normally cached, unless the provider says not to cache.
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* However, force_cache can be used to force caching whatever the provider
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* says (for example, because the application knows better).
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*/
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typedef struct ossl_method_construct_method_st {
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/* Create store */
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void *(*alloc_tmp_store)(OPENSSL_CTX *ctx);
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/* Remove a store */
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void (*dealloc_tmp_store)(void *store);
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/* Get an already existing method from a store */
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void *(*get)(OPENSSL_CTX *libctx, void *store, void *data);
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/* Store a method in a store */
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int (*put)(OPENSSL_CTX *libctx, void *store, void *method,
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const OSSL_PROVIDER *prov, int operation_id, const char *name,
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const char *propdef, void *data);
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/* Construct a new method */
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void *(*construct)(const OSSL_ALGORITHM *algodef, OSSL_PROVIDER *prov,
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void *data);
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/* Destruct a method */
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void (*destruct)(void *method, void *data);
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} OSSL_METHOD_CONSTRUCT_METHOD;
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void *ossl_method_construct(OPENSSL_CTX *ctx, int operation_id,
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int force_cache,
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OSSL_METHOD_CONSTRUCT_METHOD *mcm, void *mcm_data);
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void ossl_algorithm_do_all(OPENSSL_CTX *libctx, int operation_id,
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OSSL_PROVIDER *provider,
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int (*pre)(OSSL_PROVIDER *, int operation_id,
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void *data, int *result),
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void (*fn)(OSSL_PROVIDER *provider,
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const OSSL_ALGORITHM *algo,
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int no_store, void *data),
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int (*post)(OSSL_PROVIDER *, int operation_id,
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int no_store, void *data, int *result),
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void *data);
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#endif
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