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/*
* Copyright (C) 2014 FreeIPA Contributors see COPYING for license
*
* This code is based on PKCS#11 code from SoftHSM project:
* https://github.com/opendnssec/SoftHSMv2/
* Original license follows:
*/
/*
* Copyright (c) 2010 .SE (The Internet Infrastructure Foundation)
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 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 AUTHOR 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.
*/
/*****************************************************************************
library.c
Support function for handling PKCS#11 libraries
*****************************************************************************/
#include "library.h"
#include <stdio.h>
#include <stdlib.h>
#include <dlfcn.h>
// Load the PKCS#11 library
CK_C_GetFunctionList loadLibrary(const char* module, void** moduleHandle)
{
CK_C_GetFunctionList pGetFunctionList = NULL;
void* pDynLib = NULL;
// Load PKCS #11 library
if (module)
{
pDynLib = dlopen(module, RTLD_NOW | RTLD_LOCAL);
} else {
return NULL;
}
if (pDynLib == NULL)
{
// Failed to load the PKCS #11 library
return NULL;
}
// Retrieve the entry point for C_GetFunctionList
pGetFunctionList = (CK_C_GetFunctionList) dlsym(pDynLib, "C_GetFunctionList");
if (pGetFunctionList == NULL)
{
dlclose(pDynLib);
return NULL;
}
// Store the handle so we can dlclose it later
*moduleHandle = pDynLib;
return pGetFunctionList;
}
void unloadLibrary(void* moduleHandle)
{
if (moduleHandle)
{
dlclose(moduleHandle);
}
}
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