97c80512af
This makes building OpenLDAP easier. Change-Id: Id64699f95477fb8fb98957027c97070ebf41f4b1 Reviewed-on: https://boringssl-review.googlesource.com/7407 Reviewed-by: David Benjamin <davidben@google.com>
104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
/* ====================================================================
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* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com). */
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#include <openssl/bn.h>
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#include <openssl/dh.h>
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struct wrapped_callback {
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void (*callback)(int, int, void *);
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void *arg;
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};
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/* callback_wrapper converts an “old” style generation callback to the newer
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* |BN_GENCB| form. */
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static int callback_wrapper(int event, int n, BN_GENCB *gencb) {
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struct wrapped_callback *wrapped = (struct wrapped_callback *) gencb->arg;
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wrapped->callback(event, n, wrapped->arg);
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return 1;
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}
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DH *DH_generate_parameters(int prime_len, int generator,
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void (*callback)(int, int, void *), void *cb_arg) {
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if (prime_len < 0 || generator < 0) {
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return NULL;
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}
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DH *ret = DH_new();
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if (ret == NULL) {
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return NULL;
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}
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BN_GENCB gencb_storage;
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BN_GENCB *cb = NULL;
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struct wrapped_callback wrapped;
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if (callback != NULL) {
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wrapped.callback = callback;
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wrapped.arg = cb_arg;
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cb = &gencb_storage;
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BN_GENCB_set(cb, callback_wrapper, &wrapped);
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}
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if (!DH_generate_parameters_ex(ret, prime_len, generator, cb)) {
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goto err;
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}
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return ret;
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err:
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DH_free(ret);
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return NULL;
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}
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