openssl/providers/common/provider_ctx.c
Matt Caswell d40b42ab4c Maintain strict type discipline between the core and providers
A provider could be linked against a different version of libcrypto than
the version of libcrypto that loaded the provider. Different versions of
libcrypto could define opaque types differently. It must never occur that
a type created in one libcrypto is used directly by the other libcrypto.
This will cause crashes.

We can "cheat" for "built-in" providers that are part of libcrypto itself,
because we know that the two libcrypto versions are the same - but not for
other providers.

To ensure this does not occur we use different types names for the handful
of opaque types that are passed between the core and providers.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11758)
2020-05-16 17:10:03 +01:00

62 lines
1.3 KiB
C

/*
* Copyright 2020 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 <stdlib.h>
#include "prov/provider_ctx.h"
#include "prov/bio.h"
PROV_CTX *PROV_CTX_new(void)
{
return OPENSSL_zalloc(sizeof(PROV_CTX));
}
void PROV_CTX_free(PROV_CTX *ctx)
{
OPENSSL_free(ctx);
}
void PROV_CTX_set0_library_context(PROV_CTX *ctx, OPENSSL_CTX *libctx)
{
if (ctx != NULL)
ctx->libctx = libctx;
}
void PROV_CTX_set0_handle(PROV_CTX *ctx, const OSSL_CORE_HANDLE *handle)
{
if (ctx != NULL)
ctx->handle = handle;
}
void PROV_CTX_set0_core_bio_method(PROV_CTX *ctx, BIO_METHOD *corebiometh)
{
if (ctx != NULL)
ctx->corebiometh = corebiometh;
}
OPENSSL_CTX *PROV_CTX_get0_library_context(PROV_CTX *ctx)
{
if (ctx == NULL)
return NULL;
return ctx->libctx;
}
const OSSL_CORE_HANDLE *PROV_CTX_get0_handle(PROV_CTX *ctx)
{
if (ctx == NULL)
return NULL;
return ctx->handle;
}
BIO_METHOD *PROV_CTX_get0_core_bio_method(PROV_CTX *ctx)
{
if (ctx == NULL)
return NULL;
return ctx->corebiometh;
}