/* crypto/engine/eng_pkey.c */

/* ====================================================================

 * Copyright (c) 1999-2001 The OpenSSL Project.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer. 

 *

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in

 *    the documentation and/or other materials provided with the

 *    distribution.

 *

 * 3. All advertising materials mentioning features or use of this

 *    software must display the following acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"

 *

 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

 *    endorse or promote products derived from this software without

 *    prior written permission. For written permission, please contact

 *    licensing@OpenSSL.org.

 *

 * 5. Products derived from this software may not be called "OpenSSL"

 *    nor may "OpenSSL" appear in their names without prior written

 *    permission of the OpenSSL Project.

 *

 * 6. Redistributions of any form whatsoever must retain the following

 *    acknowledgment:

 *    "This product includes software developed by the OpenSSL Project

 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"

 *

 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR

 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

 * OF THE POSSIBILITY OF SUCH DAMAGE.

 * ====================================================================

 *

 * This product includes cryptographic software written by Eric Young

 * (eay@cryptsoft.com).  This product includes software written by Tim

 * Hudson (tjh@cryptsoft.com).

 *

 */

#include "eng_int.h"

/* Basic get/set stuff */

EXPORT_C int ENGINE_set_load_privkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpriv_f)

	{

	e->load_privkey = loadpriv_f;

	return 1;

	}

EXPORT_C int ENGINE_set_load_pubkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpub_f)

	{

	e->load_pubkey = loadpub_f;

	return 1;

	}

EXPORT_C ENGINE_LOAD_KEY_PTR ENGINE_get_load_privkey_function(const ENGINE *e)

	{

	return e->load_privkey;

	}

EXPORT_C ENGINE_LOAD_KEY_PTR ENGINE_get_load_pubkey_function(const ENGINE *e)

	{

	return e->load_pubkey;

	}

/* API functions to load public/private keys */

EXPORT_C EVP_PKEY *ENGINE_load_private_key(ENGINE *e, const char *key_id,

	UI_METHOD *ui_method, void *callback_data)

	{

	EVP_PKEY *pkey;

	if(e == NULL)

		{

		ENGINEerr(ENGINE_F_ENGINE_LOAD_PRIVATE_KEY,

			ERR_R_PASSED_NULL_PARAMETER);

		return 0;

		}

	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);

	if(e->funct_ref == 0)

		{

		CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);

		ENGINEerr(ENGINE_F_ENGINE_LOAD_PRIVATE_KEY,

			ENGINE_R_NOT_INITIALISED);

		return 0;

		}

	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);

	if (!e->load_privkey)

		{

		ENGINEerr(ENGINE_F_ENGINE_LOAD_PRIVATE_KEY,

			ENGINE_R_NO_LOAD_FUNCTION);

		return 0;

		}

	pkey = e->load_privkey(e, key_id, ui_method, callback_data);

	if (!pkey)

		{

		ENGINEerr(ENGINE_F_ENGINE_LOAD_PRIVATE_KEY,

			ENGINE_R_FAILED_LOADING_PRIVATE_KEY);

		return 0;

		}

	return pkey;

	}

EXPORT_C EVP_PKEY *ENGINE_load_public_key(ENGINE *e, const char *key_id,

	UI_METHOD *ui_method, void *callback_data)

	{

	EVP_PKEY *pkey;

	if(e == NULL)

		{

		ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY,

			ERR_R_PASSED_NULL_PARAMETER);

		return 0;

		}

	CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);

	if(e->funct_ref == 0)

		{

		CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);

		ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY,

			ENGINE_R_NOT_INITIALISED);

		return 0;

		}

	CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);

	if (!e->load_pubkey)

		{

		ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY,

			ENGINE_R_NO_LOAD_FUNCTION);

		return 0;

		}

	pkey = e->load_pubkey(e, key_id, ui_method, callback_data);

	if (!pkey)

		{

		ENGINEerr(ENGINE_F_ENGINE_LOAD_PUBLIC_KEY,

			ENGINE_R_FAILED_LOADING_PUBLIC_KEY);

		return 0;

		}

	return pkey;

	}