36f5ec55e6
Public function OSSL_PROVIDER_available() takes a library context and a provider name, and returns 1 if it's available for use, i.e. if it's possible to fetch implementations from it, otherwise 0. Internal function ossl_provider_activated() returns 1 if the given OSSL_PROVIDER is activated, otherwise 0. To make this possible, the activation of fallbacks got refactored out to a separate function, which ended up simplifying the code. Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/9398)
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/*
|
|
* Copyright 2019 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
|
|
*/
|
|
|
|
#include <openssl/err.h>
|
|
#include <openssl/cryptoerr.h>
|
|
#include <openssl/provider.h>
|
|
#include "internal/provider.h"
|
|
|
|
OSSL_PROVIDER *OSSL_PROVIDER_load(OPENSSL_CTX *libctx, const char *name)
|
|
{
|
|
OSSL_PROVIDER *prov = NULL;
|
|
|
|
/* Find it or create it */
|
|
if ((prov = ossl_provider_find(libctx, name)) == NULL
|
|
&& (prov = ossl_provider_new(libctx, name, NULL)) == NULL)
|
|
return NULL;
|
|
|
|
if (!ossl_provider_activate(prov)) {
|
|
ossl_provider_free(prov);
|
|
return NULL;
|
|
}
|
|
|
|
return prov;
|
|
}
|
|
|
|
int OSSL_PROVIDER_unload(OSSL_PROVIDER *prov)
|
|
{
|
|
ossl_provider_free(prov);
|
|
return 1;
|
|
}
|
|
|
|
int OSSL_PROVIDER_available(OPENSSL_CTX *libctx, const char *name)
|
|
{
|
|
OSSL_PROVIDER *prov = NULL;
|
|
int available = 0;
|
|
|
|
/* Find it or create it */
|
|
prov = ossl_provider_find(libctx, name);
|
|
available = ossl_provider_available(prov);
|
|
ossl_provider_free(prov);
|
|
return available;
|
|
}
|
|
|
|
const OSSL_PARAM *OSSL_PROVIDER_get_param_types(const OSSL_PROVIDER *prov)
|
|
{
|
|
return ossl_provider_get_param_types(prov);
|
|
}
|
|
|
|
int OSSL_PROVIDER_get_params(const OSSL_PROVIDER *prov, OSSL_PARAM params[])
|
|
{
|
|
return ossl_provider_get_params(prov, params);
|
|
}
|
|
|
|
int OSSL_PROVIDER_add_builtin(OPENSSL_CTX *libctx, const char *name,
|
|
OSSL_provider_init_fn *init_fn)
|
|
{
|
|
OSSL_PROVIDER *prov = NULL;
|
|
|
|
if (name == NULL || init_fn == NULL) {
|
|
CRYPTOerr(CRYPTO_F_OSSL_PROVIDER_ADD_BUILTIN,
|
|
ERR_R_PASSED_NULL_PARAMETER);
|
|
return 0;
|
|
}
|
|
|
|
/* Create it */
|
|
if ((prov = ossl_provider_new(libctx, name, init_fn)) == NULL)
|
|
return 0;
|
|
|
|
/*
|
|
* It's safely stored in the internal store at this point,
|
|
* free the returned extra reference
|
|
*/
|
|
ossl_provider_free(prov);
|
|
|
|
return 1;
|
|
}
|
|
|
|
const char *OSSL_PROVIDER_name(const OSSL_PROVIDER *prov)
|
|
{
|
|
return ossl_provider_name(prov);
|
|
}
|