| /** @addtogroup MCD_IMPL_LIB |
| * @{ |
| * @file |
| * <!-- 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. |
| */ |
| #ifndef SESSION_H_ |
| #define SESSION_H_ |
| |
| #include <stdint.h> |
| #include <list> |
| |
| #include "mc_linux.h" |
| #include "Connection.h" |
| #include "CMcKMod.h" |
| #include "CMutex.h" |
| |
| |
| class BulkBufferDescriptor |
| { |
| public: |
| addr_t virtAddr; /**< The virtual address of the Bulk buffer*/ |
| addr_t sVirtualAddr; /**< The secure virtual address of the Bulk buffer*/ |
| uint32_t len; /**< Length of the Bulk buffer*/ |
| uint32_t handle; |
| addr_t physAddrWsmL2; /**< The physical address of the L2 table of the Bulk buffer*/ |
| |
| BulkBufferDescriptor( |
| addr_t virtAddr, |
| addr_t sVirtAddr, |
| uint32_t len, |
| uint32_t handle, |
| addr_t physAddrWsmL2 |
| ) : |
| virtAddr(virtAddr), |
| sVirtualAddr(sVirtAddr), |
| len(len), |
| handle(handle), |
| physAddrWsmL2(physAddrWsmL2) |
| {}; |
| |
| }; |
| |
| typedef std::list<BulkBufferDescriptor *> bulkBufferDescrList_t; |
| typedef bulkBufferDescrList_t::iterator bulkBufferDescrIterator_t; |
| |
| |
| /** Session states. |
| * At the moment not used !!. |
| */ |
| typedef enum { |
| SESSION_STATE_INITIAL, |
| SESSION_STATE_OPEN, |
| SESSION_STATE_TRUSTLET_DEAD |
| } sessionState_t; |
| |
| #define SESSION_ERR_NO 0 /**< No session error */ |
| |
| /** Session information structure. |
| * The information structure is used to hold the state of the session, which will limit further actions for the session. |
| * Also the last error code will be stored till it's read. |
| */ |
| typedef struct { |
| sessionState_t state; /**< Session state */ |
| int32_t lastErr; /**< Last error of session */ |
| } sessionInformation_t; |
| |
| |
| class Session |
| { |
| private: |
| CMcKMod *mcKMod; |
| CMutex workLock; |
| bulkBufferDescrList_t bulkBufferDescriptors; /**< Descriptors of additional bulk buffer of a session */ |
| sessionInformation_t sessionInfo; /**< Informations about session */ |
| public: |
| uint32_t sessionId; |
| Connection *notificationConnection; |
| |
| Session(uint32_t sessionId, CMcKMod *mcKMod, Connection *connection); |
| |
| virtual ~Session(void); |
| |
| /** |
| * Add address information of additional bulk buffer memory to session and |
| * register virtual memory in kernel module. |
| * |
| * @attention The virtual address can only be added one time. If the virtual address already exist, MC_DRV_ERR_BUFFER_ALREADY_MAPPED is returned. |
| * |
| * @param buf The virtual address of bulk buffer. |
| * @param len Length of bulk buffer. |
| * @param blkBuf pointer of the actual Bulk buffer descriptor with all address information. |
| * |
| * @return MC_DRV_OK on success |
| * @return MC_DRV_ERR_BUFFER_ALREADY_MAPPED |
| */ |
| mcResult_t addBulkBuf(addr_t buf, uint32_t len, BulkBufferDescriptor **blkBuf); |
| |
| /** |
| * Remove address information of additional bulk buffer memory from session and |
| * unregister virtual memory in kernel module |
| * |
| * @param buf The virtual address of the bulk buffer. |
| * |
| * @return true on success. |
| */ |
| mcResult_t removeBulkBuf(addr_t buf); |
| |
| /** |
| * Return the Kmod handle of the bulk buff |
| * |
| * @param buf The secure virtual address of the bulk buffer. |
| * |
| * @return the Handle or 0 for failure |
| */ |
| uint32_t getBufHandle(addr_t sVirtualAddr); |
| |
| /** |
| * Set additional error information of the last error that occured. |
| * |
| * @param errorCode The actual error. |
| */ |
| void setErrorInfo(int32_t err); |
| |
| /** |
| * Get additional error information of the last error that occured. |
| * |
| * @attention After request the information is set to SESSION_ERR_NO. |
| * |
| * @return Last stored error code or SESSION_ERR_NO. |
| */ |
| int32_t getLastErr(void); |
| |
| /** |
| * Lock session for operation |
| */ |
| void lock() { |
| workLock.lock(); |
| } |
| |
| /** |
| * Unlock session for operation |
| */ |
| void unlock() { |
| workLock.unlock(); |
| } |
| }; |
| |
| typedef std::list<Session *> sessionList_t; |
| typedef sessionList_t::iterator sessionIterator_t; |
| |
| #endif /* SESSION_H_ */ |
| |
| /** @} */ |