| /** @addtogroup MCD_IMPL_LIB |
| * @{ |
| * @file |
| * |
| * Client library device management. |
| * |
| * Device and Trustlet Session management Funtions. |
| * |
| * <!-- Copyright Giesecke & Devrient GmbH 2009 - 2012 --> |
| * |
| * 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. The name of the author may not be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * 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. |
| */ |
| #include <stdint.h> |
| #include <vector> |
| |
| #include "mc_linux.h" |
| #include "Device.h" |
| |
| #include "log.h" |
| #include <assert.h> |
| |
| |
| //------------------------------------------------------------------------------ |
| Device::Device(uint32_t deviceId, Connection *connection) |
| { |
| this->deviceId = deviceId; |
| this->connection = connection; |
| |
| pMcKMod = new CMcKMod(); |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| Device::~Device(void) |
| { |
| /* Delete all session objects. Usually this should not be needed as closeDevice() |
| * requires that all sessions have been closed before. |
| */ |
| sessionIterator_t sessionIterator = sessionList.begin(); |
| while (sessionIterator != sessionList.end()) { |
| delete (*sessionIterator); |
| sessionIterator = sessionList.erase(sessionIterator); |
| } |
| |
| // Free all allocated WSM descriptors |
| wsmIterator_t wsmIterator = wsmL2List.begin(); |
| while (wsmIterator != wsmL2List.end()) { |
| CWsm_ptr pWsm = *wsmIterator; |
| |
| // ignore return code |
| pMcKMod->free(pWsm->handle, pWsm->virtAddr, pWsm->len); |
| |
| delete (*wsmIterator); |
| wsmIterator = wsmL2List.erase(wsmIterator); |
| } |
| delete connection; |
| delete pMcKMod; |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| bool Device::open(const char *deviceName) |
| { |
| return pMcKMod->open(deviceName); |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| void Device::close(void) |
| { |
| pMcKMod->close(); |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| bool Device::hasSessions(void) |
| { |
| return sessionList.size() > 0; |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| void Device::createNewSession(uint32_t sessionId, Connection *connection) |
| { |
| Session *session = new Session(sessionId, pMcKMod, connection); |
| sessionList.push_back(session); |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| bool Device::removeSession(uint32_t sessionId) |
| { |
| bool ret = false; |
| |
| sessionIterator_t interator = sessionList.begin(); |
| while (interator != sessionList.end()) { |
| if ((*interator)->sessionId == sessionId) { |
| delete (*interator); |
| interator = sessionList.erase(interator); |
| ret = true; |
| break; |
| } else { |
| interator++; |
| } |
| } |
| return ret; |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| Session *Device::resolveSessionId(uint32_t sessionId) |
| { |
| Session *ret = NULL; |
| |
| // Get Session for sessionId |
| for ( sessionIterator_t interator = sessionList.begin(); |
| interator != sessionList.end(); |
| ++interator) { |
| if ((*interator)->sessionId == sessionId) { |
| ret = (*interator); |
| break; |
| } |
| } |
| return ret; |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| mcResult_t Device::allocateContiguousWsm(uint32_t len, CWsm **wsm) |
| { |
| // Allocate shared memory |
| addr_t virtAddr; |
| uint32_t handle; |
| addr_t physAddr; |
| mcResult_t ret; |
| |
| assert(wsm != NULL); |
| |
| if (!len) { |
| return MC_DRV_ERR_INVALID_LENGTH; |
| } |
| |
| ret = pMcKMod->mapWsm(len, &handle, &virtAddr, &physAddr); |
| if (ret) { |
| return ret; |
| } |
| |
| LOG_I(" mapped handle %d to %p, phys=%p ", handle, virtAddr, physAddr); |
| |
| // Register (vaddr,paddr) with device |
| *wsm = new CWsm(virtAddr, len, handle, physAddr); |
| |
| wsmL2List.push_back(*wsm); |
| |
| // Return pointer to the allocated memory |
| return MC_DRV_OK; |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| mcResult_t Device::freeContiguousWsm(CWsm_ptr pWsm) |
| { |
| mcResult_t ret = MC_DRV_ERR_WSM_NOT_FOUND; |
| wsmIterator_t iterator; |
| |
| for (iterator = wsmL2List.begin(); iterator != wsmL2List.end(); ++iterator) { |
| if (pWsm == *iterator) { |
| ret = MC_DRV_OK; |
| break; |
| } |
| } |
| // We just looked this up using findContiguousWsm |
| assert(ret == MC_DRV_OK); |
| |
| LOG_I(" unmapping handle %d from %p, phys=%p", |
| pWsm->handle, pWsm->virtAddr, pWsm->physAddr); |
| |
| ret = pMcKMod->free(pWsm->handle, pWsm->virtAddr, pWsm->len); |
| if (ret != MC_DRV_OK) { |
| // developer forgot to free all references of this memory, we do not remove the reference here |
| return ret; |
| } |
| |
| iterator = wsmL2List.erase(iterator); |
| delete pWsm; |
| |
| return ret; |
| } |
| |
| |
| //------------------------------------------------------------------------------ |
| CWsm_ptr Device::findContiguousWsm(addr_t virtAddr) |
| { |
| CWsm_ptr pWsm = NULL; |
| |
| for ( wsmIterator_t iterator = wsmL2List.begin(); |
| iterator != wsmL2List.end(); |
| ++iterator) { |
| CWsm_ptr pTmpWsm = *iterator; |
| if (virtAddr == pTmpWsm->virtAddr) { |
| pWsm = pTmpWsm; |
| break; |
| } |
| } |
| |
| return pWsm; |
| } |
| |
| /** @} */ |