diff options
Diffstat (limited to 'SoftHSMv2/src/lib/common/osmutex.cpp')
| -rw-r--r-- | SoftHSMv2/src/lib/common/osmutex.cpp | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/SoftHSMv2/src/lib/common/osmutex.cpp b/SoftHSMv2/src/lib/common/osmutex.cpp new file mode 100644 index 0000000..28db10e --- /dev/null +++ b/SoftHSMv2/src/lib/common/osmutex.cpp @@ -0,0 +1,242 @@ +/* + * 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 + |