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/*
* Copyright (c) 2008-2010 .SE (The Internet Infrastructure Foundation).
* Copyright (c) 2010 SURFnet bv
* 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.
*/
/*****************************************************************************
osmutex.cpp
Contains OS-specific implementations of intraprocess mutex functions. This
implementation is based on SoftHSM v1
*****************************************************************************/
#include "config.h"
#include "log.h"
#include "osmutex.h"
#ifdef HAVE_PTHREAD_H
#include <stdlib.h>
#include <pthread.h>
CK_RV OSCreateMutex(CK_VOID_PTR_PTR newMutex)
{
int rv;
/* Allocate memory */
pthread_mutex_t* pthreadMutex = (pthread_mutex_t*) malloc(sizeof(pthread_mutex_t));
if (pthreadMutex == NULL)
{
ERROR_MSG("Failed to allocate memory for a new mutex");
return CKR_HOST_MEMORY;
}
/* Initialise the mutex */
if ((rv = pthread_mutex_init(pthreadMutex, NULL)) != 0)
{
free(pthreadMutex);
ERROR_MSG("Failed to initialise POSIX mutex (0x%08X)", rv);
return CKR_GENERAL_ERROR;
}
*newMutex = pthreadMutex;
return CKR_OK;
}
CK_RV OSDestroyMutex(CK_VOID_PTR mutex)
{
int rv;
pthread_mutex_t* pthreadMutex = (pthread_mutex_t*) mutex;
if (pthreadMutex == NULL)
{
ERROR_MSG("Cannot destroy NULL mutex");
return CKR_ARGUMENTS_BAD;
}
if ((rv = pthread_mutex_destroy(pthreadMutex)) != 0)
{
ERROR_MSG("Failed to destroy POSIX mutex (0x%08X)", rv);
return CKR_GENERAL_ERROR;
}
free(pthreadMutex);
return CKR_OK;
}
CK_RV OSLockMutex(CK_VOID_PTR mutex)
{
int rv;
pthread_mutex_t* pthreadMutex = (pthread_mutex_t*) mutex;
if (pthreadMutex == NULL)
{
ERROR_MSG("Cannot lock NULL mutex");
return CKR_ARGUMENTS_BAD;
}
if ((rv = pthread_mutex_lock(pthreadMutex)) != 0)
{
ERROR_MSG("Failed to lock POSIX mutex 0x%08X (0x%08X)", pthreadMutex, rv);
return CKR_GENERAL_ERROR;
}
return CKR_OK;
}
CK_RV OSUnlockMutex(CK_VOID_PTR mutex)
{
int rv;
pthread_mutex_t* pthreadMutex = (pthread_mutex_t*) mutex;
if (pthreadMutex == NULL)
{
ERROR_MSG("Cannot unlock NULL mutex");
return CKR_ARGUMENTS_BAD;
}
if ((rv = pthread_mutex_unlock(pthreadMutex)) != 0)
{
ERROR_MSG("Failed to unlock POSIX mutex 0x%08X (0x%08X)", pthreadMutex, rv);
return CKR_GENERAL_ERROR;
}
return CKR_OK;
}
#elif _WIN32
CK_RV OSCreateMutex(CK_VOID_PTR_PTR newMutex)
{
HANDLE hMutex;
hMutex = CreateMutex(NULL, FALSE, NULL);
if (hMutex == NULL)
{
DWORD rv = GetLastError();
ERROR_MSG("Failed to initialise WIN32 mutex (0x%08X)", rv);
return CKR_GENERAL_ERROR;
}
*newMutex = hMutex;
return CKR_OK;
}
CK_RV OSDestroyMutex(CK_VOID_PTR mutex)
{
HANDLE hMutex = (HANDLE) mutex;
if (hMutex == NULL)
{
ERROR_MSG("Cannot destroy NULL mutex");
return CKR_ARGUMENTS_BAD;
}
if (CloseHandle(hMutex) == 0)
{
DWORD rv = GetLastError();
ERROR_MSG("Failed to destroy WIN32 mutex (0x%08X)", rv);
return CKR_GENERAL_ERROR;
}
return CKR_OK;
}
CK_RV OSLockMutex(CK_VOID_PTR mutex)
{
DWORD rv;
HANDLE hMutex = (HANDLE) mutex;
if (hMutex == NULL)
{
ERROR_MSG("Cannot lock NULL mutex");
return CKR_ARGUMENTS_BAD;
}
rv = WaitForSingleObject(hMutex, INFINITE);
if (rv != WAIT_OBJECT_0)
{
// WAIT_ABANDONED 0x00000080
// WAIT_OBJECT_0 0x00000000
// WAIT_TIMEOUT 0x00000102
// WAIT_FAILED 0xFFFFFFFF
if (rv == WAIT_FAILED)
rv = GetLastError();
ERROR_MSG("Failed to lock WIN32 mutex 0x%08X (0x%08X)", hMutex, rv);
return CKR_GENERAL_ERROR;
}
return CKR_OK;
}
CK_RV OSUnlockMutex(CK_VOID_PTR mutex)
{
HANDLE hMutex = (HANDLE) mutex;
if (hMutex == NULL)
{
ERROR_MSG("Cannot unlock NULL mutex");
return CKR_ARGUMENTS_BAD;
}
if (ReleaseMutex(hMutex) == 0)
{
DWORD rv = GetLastError();
ERROR_MSG("Failed to unlock WIN32 mutex 0x%08X (0x%08X)", hMutex, rv);
return CKR_GENERAL_ERROR;
}
return CKR_OK;
}
#else
#error "There are no mutex implementations for your operating system yet"
#endif
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