include/internal/provider.h

   1 /*
   2  * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef OSSL_INTERNAL_PROVIDER_H
  11 # define OSSL_INTERNAL_PROVIDER_H
  12
  13 # include <openssl/core.h>
  14 # include "internal/dso.h"
  15 # include "internal/symhacks.h"
  16
  17 # ifdef __cplusplus
  18 extern "C" {
  19 # endif
  20
  21 /*
  22  * namespaces:
  23  *
  24  * ossl_provider_       Provider Object internal API
  25  * OSSL_PROVIDER        Provider Object
  26  */
  27
  28 /* Provider Object finder, constructor and destructor */
  29 OSSL_PROVIDER *ossl_provider_find(OPENSSL_CTX *libctx, const char *name);
  30 OSSL_PROVIDER *ossl_provider_new(OPENSSL_CTX *libctx, const char *name,
  31                                  OSSL_provider_init_fn *init_function);
  32 int ossl_provider_up_ref(OSSL_PROVIDER *prov);
  33 void ossl_provider_free(OSSL_PROVIDER *prov);
  34
  35 /* Setters */
  36 int ossl_provider_set_fallback(OSSL_PROVIDER *prov);
  37 int ossl_provider_set_module_path(OSSL_PROVIDER *prov, const char *module_path);
  38 int ossl_provider_add_parameter(OSSL_PROVIDER *prov, const char *name,
  39                                 const char *value);
  40
  41 /*
  42  * Activate the Provider
  43  * If the Provider is a module, the module will be loaded
  44  * Inactivation is done by freeing the Provider
  45  */
  46 int ossl_provider_activate(OSSL_PROVIDER *prov);
  47
  48 /* Return pointer to the provider's context */
  49 void *ossl_provider_ctx(const OSSL_PROVIDER *prov);
  50
  51 /* Iterate over all loaded providers */
  52 int ossl_provider_forall_loaded(OPENSSL_CTX *,
  53                                 int (*cb)(OSSL_PROVIDER *provider,
  54                                           void *cbdata),
  55                                 void *cbdata);
  56
  57 /* Getters for other library functions */
  58 const char *ossl_provider_name(const OSSL_PROVIDER *prov);
  59 const DSO *ossl_provider_dso(const OSSL_PROVIDER *prov);
  60 const char *ossl_provider_module_name(const OSSL_PROVIDER *prov);
  61 const char *ossl_provider_module_path(const OSSL_PROVIDER *prov);
  62
  63 /* Thin wrappers around calls to the provider */
  64 void ossl_provider_teardown(const OSSL_PROVIDER *prov);
  65 const OSSL_PARAM *ossl_provider_get_param_types(const OSSL_PROVIDER *prov);
  66 int ossl_provider_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[]);
  67 const OSSL_ALGORITHM *ossl_provider_query_operation(const OSSL_PROVIDER *prov,
  68                                                     int operation_id,
  69                                                     int *no_cache);
  70
  71 /* Configuration */
  72 void ossl_provider_add_conf_module(void);
  73
  74 # ifdef __cplusplus
  75 }
  76 # endif
  77
  78 #endif