mirror of
https://github.com/openssl/openssl.git
synced 2024-12-27 06:21:43 +08:00
7c14d0c1c0
pointers to provider size algorithm contexts. Fixes #14284 The gettable_ctx_params methods were confusingly passing a 'provctx' and a provider context which are completely different objects. Some objects such as EVP_KDF used 'data' while others such as EVP_MD used 'provctx'. For libcrypto this 'ctx' is an opaque ptr returned when a providers algorithm implementation creates an internal context using a new_ctx() method. Hence the new name 'algctx'. Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15275)
82 lines
3.6 KiB
C
82 lines
3.6 KiB
C
/*
|
|
* Copyright 2019-2021 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
|
|
*/
|
|
|
|
/* Internal EVP utility functions */
|
|
|
|
#include <openssl/core.h>
|
|
#include <openssl/evp.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/asn1.h> /* evp_local.h needs it */
|
|
#include <openssl/safestack.h> /* evp_local.h needs it */
|
|
#include "crypto/evp.h" /* evp_local.h needs it */
|
|
#include "evp_local.h"
|
|
|
|
/*
|
|
* EVP_CTRL_RET_UNSUPPORTED = -1 is the returned value from any ctrl function
|
|
* where the control command isn't supported, and an alternative code path
|
|
* may be chosen.
|
|
* Since these functions are used to implement ctrl functionality, we
|
|
* use the same value, and other callers will have to compensate.
|
|
*/
|
|
#define PARAM_CHECK(obj, func, errfunc) \
|
|
if (obj == NULL) \
|
|
return 0; \
|
|
if (obj->prov == NULL) \
|
|
return EVP_CTRL_RET_UNSUPPORTED; \
|
|
if (obj->func == NULL) { \
|
|
errfunc(); \
|
|
return 0; \
|
|
}
|
|
|
|
#define PARAM_FUNC(name, func, type, err) \
|
|
int name (const type *obj, OSSL_PARAM params[]) \
|
|
{ \
|
|
PARAM_CHECK(obj, func, err) \
|
|
return obj->func(params); \
|
|
}
|
|
|
|
#define PARAM_CTX_FUNC(name, func, type, err) \
|
|
int name (const type *obj, void *algctx, OSSL_PARAM params[]) \
|
|
{ \
|
|
PARAM_CHECK(obj, func, err) \
|
|
return obj->func(algctx, params); \
|
|
}
|
|
|
|
#define PARAM_FUNCTIONS(type, \
|
|
getname, getfunc, \
|
|
getctxname, getctxfunc, \
|
|
setctxname, setctxfunc) \
|
|
PARAM_FUNC(getname, getfunc, type, geterr) \
|
|
PARAM_CTX_FUNC(getctxname, getctxfunc, type, geterr) \
|
|
PARAM_CTX_FUNC(setctxname, setctxfunc, type, seterr)
|
|
|
|
/*
|
|
* These error functions are a workaround for the error scripts, which
|
|
* currently require that XXXerr method appears inside a function (not a macro).
|
|
*/
|
|
static void geterr(void)
|
|
{
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_CANNOT_GET_PARAMETERS);
|
|
}
|
|
|
|
static void seterr(void)
|
|
{
|
|
ERR_raise(ERR_LIB_EVP, EVP_R_CANNOT_SET_PARAMETERS);
|
|
}
|
|
|
|
PARAM_FUNCTIONS(EVP_CIPHER,
|
|
evp_do_ciph_getparams, get_params,
|
|
evp_do_ciph_ctx_getparams, get_ctx_params,
|
|
evp_do_ciph_ctx_setparams, set_ctx_params)
|
|
|
|
PARAM_FUNCTIONS(EVP_MD,
|
|
evp_do_md_getparams, get_params,
|
|
evp_do_md_ctx_getparams, get_ctx_params,
|
|
evp_do_md_ctx_setparams, set_ctx_params)
|