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/*
* Copyright 2016-2020 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
*/
/*
* DH low level APIs are deprecated for public use, but still ok for
* internal use.
*/
#include "internal/deprecated.h"
#include "dh_local.h"
#include <string.h>
#include <openssl/err.h>
DH_METHOD *DH_meth_new(const char *name, int flags)
{
DH_METHOD *dhm = OPENSSL_zalloc(sizeof(*dhm));
if (dhm != NULL) {
dhm->flags = flags;
dhm->name = OPENSSL_strdup(name);
if (dhm->name != NULL)
return dhm;
OPENSSL_free(dhm);
}
ERR_raise(ERR_LIB_DH, ERR_R_MALLOC_FAILURE);
return NULL;
}
void DH_meth_free(DH_METHOD *dhm)
{
if (dhm != NULL) {
OPENSSL_free(dhm->name);
OPENSSL_free(dhm);
}
}
DH_METHOD *DH_meth_dup(const DH_METHOD *dhm)
{
DH_METHOD *ret = OPENSSL_malloc(sizeof(*ret));
if (ret != NULL) {
memcpy(ret, dhm, sizeof(*dhm));
ret->name = OPENSSL_strdup(dhm->name);
if (ret->name != NULL)
return ret;
OPENSSL_free(ret);
}
ERR_raise(ERR_LIB_DH, ERR_R_MALLOC_FAILURE);
return NULL;
}
const char *DH_meth_get0_name(const DH_METHOD *dhm)
{
return dhm->name;
}
int DH_meth_set1_name(DH_METHOD *dhm, const char *name)
{
char *tmpname = OPENSSL_strdup(name);
if (tmpname == NULL) {
ERR_raise(ERR_LIB_DH, ERR_R_MALLOC_FAILURE);
return 0;
}
OPENSSL_free(dhm->name);
dhm->name = tmpname;
return 1;
}
int DH_meth_get_flags(const DH_METHOD *dhm)
{
return dhm->flags;
}
int DH_meth_set_flags(DH_METHOD *dhm, int flags)
{
dhm->flags = flags;
return 1;
}
void *DH_meth_get0_app_data(const DH_METHOD *dhm)
{
return dhm->app_data;
}
int DH_meth_set0_app_data(DH_METHOD *dhm, void *app_data)
{
dhm->app_data = app_data;
return 1;
}
int (*DH_meth_get_generate_key(const DH_METHOD *dhm)) (DH *)
{
return dhm->generate_key;
}
int DH_meth_set_generate_key(DH_METHOD *dhm, int (*generate_key) (DH *))
{
dhm->generate_key = generate_key;
return 1;
}
int (*DH_meth_get_compute_key(const DH_METHOD *dhm))
(unsigned char *key, const BIGNUM *pub_key, DH *dh)
{
return dhm->compute_key;
}
int DH_meth_set_compute_key(DH_METHOD *dhm,
int (*compute_key) (unsigned char *key, const BIGNUM *pub_key, DH *dh))
{
dhm->compute_key = compute_key;
return 1;
}
int (*DH_meth_get_bn_mod_exp(const DH_METHOD *dhm))
(const DH *, BIGNUM *, const BIGNUM *, const BIGNUM *, const BIGNUM *,
BN_CTX *, BN_MONT_CTX *)
{
return dhm->bn_mod_exp;
}
int DH_meth_set_bn_mod_exp(DH_METHOD *dhm,
int (*bn_mod_exp) (const DH *, BIGNUM *, const BIGNUM *, const BIGNUM *,
const BIGNUM *, BN_CTX *, BN_MONT_CTX *))
{
dhm->bn_mod_exp = bn_mod_exp;
return 1;
}
int (*DH_meth_get_init(const DH_METHOD *dhm))(DH *)
{
return dhm->init;
}
int DH_meth_set_init(DH_METHOD *dhm, int (*init)(DH *))
{
dhm->init = init;
return 1;
}
int (*DH_meth_get_finish(const DH_METHOD *dhm)) (DH *)
{
return dhm->finish;
}
int DH_meth_set_finish(DH_METHOD *dhm, int (*finish) (DH *))
{
dhm->finish = finish;
return 1;
}
int (*DH_meth_get_generate_params(const DH_METHOD *dhm))
(DH *, int, int, BN_GENCB *)
{
return dhm->generate_params;
}
int DH_meth_set_generate_params(DH_METHOD *dhm,
int (*generate_params) (DH *, int, int, BN_GENCB *))
{
dhm->generate_params = generate_params;
return 1;
}
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