crypto/provider.c

   1 /*
   2  * Copyright 2019-2020 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 #include <openssl/err.h>
  11 #include <openssl/cryptoerr.h>
  12 #include <openssl/provider.h>
  13 #include <openssl/core_names.h>
  14 #include "internal/provider.h"
  15
  16 OSSL_PROVIDER *OSSL_PROVIDER_load(OPENSSL_CTX *libctx, const char *name)
  17 {
  18     OSSL_PROVIDER *prov = NULL;
  19
  20     /* Find it or create it */
  21     if ((prov = ossl_provider_find(libctx, name, 0)) == NULL
  22         && (prov = ossl_provider_new(libctx, name, NULL, 0)) == NULL)
  23         return NULL;
  24
  25     if (!ossl_provider_activate(prov)) {
  26         ossl_provider_free(prov);
  27         return NULL;
  28     }
  29
  30     return prov;
  31 }
  32
  33 int OSSL_PROVIDER_unload(OSSL_PROVIDER *prov)
  34 {
  35     ossl_provider_free(prov);
  36     return 1;
  37 }
  38
  39 int OSSL_PROVIDER_available(OPENSSL_CTX *libctx, const char *name)
  40 {
  41     OSSL_PROVIDER *prov = NULL;
  42     int available = 0;
  43
  44     /* Find it or create it */
  45     prov = ossl_provider_find(libctx, name, 0);
  46     available = ossl_provider_available(prov);
  47     ossl_provider_free(prov);
  48     return available;
  49 }
  50
  51 const OSSL_PARAM *OSSL_PROVIDER_gettable_params(const OSSL_PROVIDER *prov)
  52 {
  53     return ossl_provider_gettable_params(prov);
  54 }
  55
  56 int OSSL_PROVIDER_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
  57 {
  58     return ossl_provider_get_params(prov, params);
  59 }
  60
  61 const OSSL_ALGORITHM *OSSL_PROVIDER_query_operation(const OSSL_PROVIDER *prov,
  62                                                     int operation_id,
  63                                                     int *no_cache)
  64 {
  65     return ossl_provider_query_operation(prov, operation_id, no_cache);
  66 }
  67
  68 void *OSSL_PROVIDER_get0_provider_ctx(const OSSL_PROVIDER *prov)
  69 {
  70     return ossl_provider_prov_ctx(prov);
  71 }
  72
  73 int OSSL_PROVIDER_self_test(const OSSL_PROVIDER *prov)
  74 {
  75     return ossl_provider_self_test(prov);
  76 }
  77
  78 int OSSL_PROVIDER_get_capabilities(const OSSL_PROVIDER *prov,
  79                                    const char *capability,
  80                                    OSSL_CALLBACK *cb,
  81                                    void *arg)
  82 {
  83     return ossl_provider_get_capabilities(prov, capability, cb, arg);
  84 }
  85
  86 int OSSL_PROVIDER_add_builtin(OPENSSL_CTX *libctx, const char *name,
  87                               OSSL_provider_init_fn *init_fn)
  88 {
  89     OSSL_PROVIDER *prov = NULL;
  90
  91     if (name == NULL || init_fn == NULL) {
  92         CRYPTOerr(CRYPTO_F_OSSL_PROVIDER_ADD_BUILTIN,
  93                   ERR_R_PASSED_NULL_PARAMETER);
  94         return 0;
  95     }
  96
  97     /* Create it */
  98     if ((prov = ossl_provider_new(libctx, name, init_fn, 0)) == NULL)
  99         return 0;
 100
 101     /*
 102      * It's safely stored in the internal store at this point,
 103      * free the returned extra reference
 104      */
 105     ossl_provider_free(prov);
 106
 107     return 1;
 108 }
 109
 110 const char *OSSL_PROVIDER_name(const OSSL_PROVIDER *prov)
 111 {
 112     return ossl_provider_name(prov);
 113 }
 114
 115 int OSSL_PROVIDER_do_all(OPENSSL_CTX *ctx,
 116                          int (*cb)(OSSL_PROVIDER *provider,
 117                                    void *cbdata),
 118                          void *cbdata)
 119 {
 120     return ossl_provider_forall_loaded(ctx, cb, cbdata);
 121 }