/* ====================================================================
 * Copyright (c) 2014 - 2017 The GmSSL 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 GmSSL Project.
 *    (http://gmssl.org/)"
 *
 * 4. The name "GmSSL Project" must not be used to endorse or promote
 *    products derived from this software without prior written
 *    permission. For written permission, please contact
 *    guanzhi1980@gmail.com.
 *
 * 5. Products derived from this software may not be called "GmSSL"
 *    nor may "GmSSL" appear in their names without prior written
 *    permission of the GmSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the GmSSL Project
 *    (http://gmssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE GmSSL 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 GmSSL 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.
 * ====================================================================
 */

#include <openssl/err.h>
#include <openssl/gmskf.h>
#include "internal/dso.h"
#include "internal/skf_int.h"


#define SKF_METHOD_BIND_FUNCTION_EX(func,name) \
	skf->func = (SKF_##func##_FuncPtr)DSO_bind_func(skf->dso, "SKF_"#name)

#define SKF_METHOD_BIND_FUNCTION(func) \
	SKF_METHOD_BIND_FUNCTION_EX(func,func)


SKF_METHOD *SKF_METHOD_load_library(const char *so_path)
{
	SKF_METHOD *ret = NULL;
	SKF_METHOD *skf = NULL;

	if (!(skf = OPENSSL_zalloc(sizeof(*skf)))) {
		SKFerr(SKF_F_SKF_METHOD_LOAD_LIBRARY, ERR_R_MALLOC_FAILURE);
		goto end;
	}
	if (!(skf->dso = DSO_load(NULL, so_path, NULL, 0))) {
		SKFerr(SKF_F_SKF_METHOD_LOAD_LIBRARY, SKF_R_DSO_LOAD_FAILURE);
		goto end;
	}

	SKF_METHOD_BIND_FUNCTION(WaitForDevEvent);
	SKF_METHOD_BIND_FUNCTION(CancelWaitForDevEvent);
	SKF_METHOD_BIND_FUNCTION(EnumDev);
	SKF_METHOD_BIND_FUNCTION(ConnectDev);
	SKF_METHOD_BIND_FUNCTION(DisConnectDev);
	SKF_METHOD_BIND_FUNCTION(GetDevState);
	SKF_METHOD_BIND_FUNCTION(SetLabel);
	SKF_METHOD_BIND_FUNCTION(GetDevInfo);
	SKF_METHOD_BIND_FUNCTION(LockDev);
	SKF_METHOD_BIND_FUNCTION(UnlockDev);
	SKF_METHOD_BIND_FUNCTION(Transmit);
	SKF_METHOD_BIND_FUNCTION(ChangeDevAuthKey);
	SKF_METHOD_BIND_FUNCTION(DevAuth);
	SKF_METHOD_BIND_FUNCTION(ChangePIN);
	SKF_METHOD_BIND_FUNCTION(GetPINInfo);
	SKF_METHOD_BIND_FUNCTION(VerifyPIN);
	SKF_METHOD_BIND_FUNCTION(UnblockPIN);
	SKF_METHOD_BIND_FUNCTION(ClearSecureState);
	SKF_METHOD_BIND_FUNCTION(CreateApplication);
	SKF_METHOD_BIND_FUNCTION(EnumApplication);
	SKF_METHOD_BIND_FUNCTION(DeleteApplication);
	SKF_METHOD_BIND_FUNCTION(OpenApplication);
	SKF_METHOD_BIND_FUNCTION(CloseApplication);
	SKF_METHOD_BIND_FUNCTION_EX(CreateObject,CreateFile);
	SKF_METHOD_BIND_FUNCTION_EX(DeleteObject,DeleteFile);
	SKF_METHOD_BIND_FUNCTION_EX(EnumObjects,EnumFiles);
	SKF_METHOD_BIND_FUNCTION_EX(GetObjectInfo,GetFileInfo);
	SKF_METHOD_BIND_FUNCTION_EX(ReadObject,ReadFile);
	SKF_METHOD_BIND_FUNCTION_EX(WriteObject,WriteFile);
	SKF_METHOD_BIND_FUNCTION(CreateContainer);
	SKF_METHOD_BIND_FUNCTION(DeleteContainer);
	SKF_METHOD_BIND_FUNCTION(EnumContainer);
	SKF_METHOD_BIND_FUNCTION(OpenContainer);
	SKF_METHOD_BIND_FUNCTION(CloseContainer);
	SKF_METHOD_BIND_FUNCTION(GetContainerType);
	SKF_METHOD_BIND_FUNCTION(ImportCertificate);
	SKF_METHOD_BIND_FUNCTION(ExportCertificate);
	SKF_METHOD_BIND_FUNCTION(ExportPublicKey);
	SKF_METHOD_BIND_FUNCTION(GenRandom);
	SKF_METHOD_BIND_FUNCTION(GenExtRSAKey);
	SKF_METHOD_BIND_FUNCTION(GenRSAKeyPair);
	SKF_METHOD_BIND_FUNCTION(ImportRSAKeyPair);
	SKF_METHOD_BIND_FUNCTION(RSASignData);
	SKF_METHOD_BIND_FUNCTION(RSAVerify);
	SKF_METHOD_BIND_FUNCTION(RSAExportSessionKey);
	SKF_METHOD_BIND_FUNCTION(ExtRSAPubKeyOperation);
	SKF_METHOD_BIND_FUNCTION(ExtRSAPriKeyOperation);
	SKF_METHOD_BIND_FUNCTION(GenECCKeyPair);
	SKF_METHOD_BIND_FUNCTION(ImportECCKeyPair);
	SKF_METHOD_BIND_FUNCTION(ECCSignData);
	SKF_METHOD_BIND_FUNCTION(ECCVerify);
	SKF_METHOD_BIND_FUNCTION(ECCExportSessionKey);
	SKF_METHOD_BIND_FUNCTION(ExtECCEncrypt);
	SKF_METHOD_BIND_FUNCTION(ExtECCDecrypt);
	SKF_METHOD_BIND_FUNCTION(ECCDecrypt);
	SKF_METHOD_BIND_FUNCTION(ExtECCSign);
	SKF_METHOD_BIND_FUNCTION(ExtECCVerify);
	SKF_METHOD_BIND_FUNCTION(GenerateAgreementDataWithECC);
	SKF_METHOD_BIND_FUNCTION(GenerateAgreementDataAndKeyWithECC);
	SKF_METHOD_BIND_FUNCTION(GenerateKeyWithECC);
	SKF_METHOD_BIND_FUNCTION(ImportSessionKey);
	SKF_METHOD_BIND_FUNCTION(SetSymmKey);
	SKF_METHOD_BIND_FUNCTION(EncryptInit);
	SKF_METHOD_BIND_FUNCTION(Encrypt);
	SKF_METHOD_BIND_FUNCTION(EncryptUpdate);
	SKF_METHOD_BIND_FUNCTION(EncryptFinal);
	SKF_METHOD_BIND_FUNCTION(DecryptInit);
	SKF_METHOD_BIND_FUNCTION(Decrypt);
	SKF_METHOD_BIND_FUNCTION(DecryptUpdate);
	SKF_METHOD_BIND_FUNCTION(DecryptFinal);
	SKF_METHOD_BIND_FUNCTION(DigestInit);
	SKF_METHOD_BIND_FUNCTION(Digest);
	SKF_METHOD_BIND_FUNCTION(DigestUpdate);
	SKF_METHOD_BIND_FUNCTION(DigestFinal);
	SKF_METHOD_BIND_FUNCTION(MacInit);
	SKF_METHOD_BIND_FUNCTION(Mac);
	SKF_METHOD_BIND_FUNCTION(MacUpdate);
	SKF_METHOD_BIND_FUNCTION(MacFinal);
	SKF_METHOD_BIND_FUNCTION(CloseHandle);

	ret = skf;
	skf = NULL;

end:
	SKF_METHOD_free(skf);
	return ret;
}

void SKF_METHOD_free(SKF_METHOD *meth)
{
	if (meth)
		DSO_free(meth->dso);
	OPENSSL_free(meth);
}