daemon/PaApi/tlcCmApi.cpp

/** @addtogroup TLC_CONTENT_MANAGER
 * @{
 * @file
 * Content Manager API (implementation).
 *
 * <!-- 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 "tlcCmApi.h"
#include "tlCmUuid.h"

#include "log.h"

#include <assert.h>
#include <stdlib.h>


static const uint32_t DEVICE_ID = MC_DEVICE_ID_DEFAULT;
static mcSessionHandle_t m_sessionHandle = { 0, 0 };

mcResult_t cmOpen(cmp_t **cmp)
{
    const mcUuid_t UUID = TL_CM_UUID;
    mcResult_t result;

    if (NULL == cmp) {
        LOG_E("Parameter cmp is NULL");
        return MC_DRV_ERR_INVALID_PARAMETER;
    }

    result = mcOpenDevice(DEVICE_ID);
    if (MC_DRV_OK != result) {
        LOG_E("Error opening device: %d", result);
        return result;
    }
    result = mcMallocWsm(DEVICE_ID, 0, sizeof(cmp_t), (uint8_t **)cmp, 0);
    if (MC_DRV_OK != result) {
        LOG_E("Allocation of CMP WSM failed: %d", result);
        return result;
    }

    result = mcOpenSession(&m_sessionHandle, &UUID, (uint8_t *) * cmp, (uint32_t) sizeof(cmp_t));
    if (MC_DRV_OK != result) {
        LOG_E("Open session failed: %d", result);
    }

    return result;
}

mcResult_t cmClose(void)
{
    mcResult_t result;

    if (0 == m_sessionHandle.sessionId) {
        LOG_E("No session to close!");
    }
    result = mcCloseSession(&m_sessionHandle);
    if (MC_DRV_OK != result) {
        LOG_E("Closing session failed: %d", result);
    }
    result = mcCloseDevice(DEVICE_ID);
    if (MC_DRV_OK != result) {
        LOG_E("Closing MobiCore device failed: %d", result);
    }

    return result;
}

mcResult_t cmManage(void)
{
    mcResult_t result;

    if (0 == m_sessionHandle.sessionId) {
        LOG_E("No session.");
        return MC_DRV_ERR_INIT;
    }

    // Send CMP message to content management trustlet.
    result = mcNotify(&m_sessionHandle);

    if (MC_DRV_OK != result) {
        LOG_E("Notify failed: %d", result);
        return result;
    }

    // Wait for trustlet response.
    result = mcWaitNotification(&m_sessionHandle, MC_INFINITE_TIMEOUT);

    if (MC_DRV_OK != result) {
        LOG_E("Wait for response notification failed: %d", result);
        return result;
    }

    return MC_DRV_OK;
}

/** @} */