/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * 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 <stdio.h>
#include "internal/cryptlib.h"
+#include "internal/refcount.h"
#include <openssl/bn.h>
#include "dh_locl.h"
#include <openssl/engine.h>
-static const DH_METHOD *default_DH_method = NULL;
-
-void DH_set_default_method(const DH_METHOD *meth)
-{
- default_DH_method = meth;
-}
-
-const DH_METHOD *DH_get_default_method(void)
-{
- if (!default_DH_method)
- default_DH_method = DH_OpenSSL();
- return default_DH_method;
-}
-
int DH_set_method(DH *dh, const DH_METHOD *meth)
{
/*
ret->references = 1;
ret->lock = CRYPTO_THREAD_lock_new();
if (ret->lock == NULL) {
+ DHerr(DH_F_DH_NEW_METHOD, ERR_R_MALLOC_FAILURE);
OPENSSL_free(ret);
return NULL;
}
if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
DHerr(DH_F_DH_NEW_METHOD, ERR_R_INIT_FAIL);
-err:
- DH_free(ret);
- ret = NULL;
+ goto err;
}
return ret;
+
+ err:
+ DH_free(ret);
+ return NULL;
}
void DH_free(DH *r)
if (r == NULL)
return;
- CRYPTO_atomic_add(&r->references, -1, &i, r->lock);
+ CRYPTO_DOWN_REF(&r->references, &i, r->lock);
REF_PRINT_COUNT("DH", r);
if (i > 0)
return;
REF_ASSERT_ISNT(i < 0);
- if (r->meth->finish)
+ if (r->meth != NULL && r->meth->finish != NULL)
r->meth->finish(r);
#ifndef OPENSSL_NO_ENGINE
ENGINE_finish(r->engine);
{
int i;
- if (CRYPTO_atomic_add(&r->references, 1, &i, r->lock) <= 0)
+ if (CRYPTO_UP_REF(&r->references, &i, r->lock) <= 0)
return 0;
REF_PRINT_COUNT("DH", r);
int DH_set_ex_data(DH *d, int idx, void *arg)
{
- return (CRYPTO_set_ex_data(&d->ex_data, idx, arg));
+ return CRYPTO_set_ex_data(&d->ex_data, idx, arg);
}
void *DH_get_ex_data(DH *d, int idx)
{
- return (CRYPTO_get_ex_data(&d->ex_data, idx));
+ return CRYPTO_get_ex_data(&d->ex_data, idx);
}
int DH_bits(const DH *dh)
int DH_size(const DH *dh)
{
- return (BN_num_bytes(dh->p));
+ return BN_num_bytes(dh->p);
}
int DH_security_bits(const DH *dh)
}
-void DH_get0_pqg(const DH *dh, BIGNUM **p, BIGNUM **q, BIGNUM **g)
+void DH_get0_pqg(const DH *dh,
+ const BIGNUM **p, const BIGNUM **q, const BIGNUM **g)
{
if (p != NULL)
*p = dh->p;
{
/* If the fields p and g in d are NULL, the corresponding input
* parameters MUST be non-NULL. q may remain NULL.
- *
- * It is an error to give the results from get0 on d
- * as input parameters.
*/
- if (p == dh->p || (dh->q != NULL && q == dh->q) || g == dh->g)
+ if ((dh->p == NULL && p == NULL)
+ || (dh->g == NULL && g == NULL))
return 0;
if (p != NULL) {
return 1;
}
-void DH_get0_key(const DH *dh, BIGNUM **pub_key, BIGNUM **priv_key)
+void DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **priv_key)
{
if (pub_key != NULL)
*pub_key = dh->pub_key;
int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key)
{
- /* If the pub_key in dh is NULL, the corresponding input
- * parameters MUST be non-NULL. The priv_key field may
- * be left NULL.
- *
- * It is an error to give the results from get0 on dh
- * as input parameters.
- */
- if (dh->pub_key == pub_key
- || (dh->priv_key != NULL && priv_key == dh->priv_key))
- return 0;
-
if (pub_key != NULL) {
BN_free(dh->pub_key);
dh->pub_key = pub_key;
return 1;
}
+const BIGNUM *DH_get0_p(const DH *dh)
+{
+ return dh->p;
+}
+
+const BIGNUM *DH_get0_q(const DH *dh)
+{
+ return dh->q;
+}
+
+const BIGNUM *DH_get0_g(const DH *dh)
+{
+ return dh->g;
+}
+
+const BIGNUM *DH_get0_priv_key(const DH *dh)
+{
+ return dh->priv_key;
+}
+
+const BIGNUM *DH_get0_pub_key(const DH *dh)
+{
+ return dh->pub_key;
+}
+
void DH_clear_flags(DH *dh, int flags)
{
dh->flags &= ~flags;