/** * @defgroup MCD_API MobiCore Driver API * @addtogroup MCD_API * @{ * * @if DOXYGEN_MCDRV_API * @mainpage MobiCore Driver API. * @endif * * MobiCore Driver API. * * The MobiCore (MC) Driver API provides access functions to the MobiCore runtime environment and the contained Trustlets. * * @image html DoxyOverviewDrvApi500x.png * @image latex DoxyOverviewDrvApi500x.png "MobiCore Overview" width=12cm */ /* * * 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 MCDRIVER_H_ #define MCDRIVER_H_ #if (!defined(__MC_CLIENT_LIB_API)) && __cplusplus #define __MC_CLIENT_LIB_API extern "C" #else #define __MC_CLIENT_LIB_API #endif // __cplusplus #include #include #include "mcUuid.h" #include "mcSpid.h" #include "mcVersionInfo.h" /* * MobiCore driver API error codes. * MAJOR part of error code is stable. * MCP part contains MCP result code. See MCI/mcimcp.h * DETAIL part may be used in testing for specific error code. * * Detail error codes may change in different releases * Please do not test DETAIL part when comparing error codes. */ #define MC_DRV_ERROR_MAJOR(ecode) ((ecode) & 0xFF) /**< Get MAJOR part of error code. */ #define MC_DRV_ERROR_MCP(ecode) (((ecode)>>8) & 0xFF) /**< Get MCP part of error code. */ #define MC_DRV_ERROR_DETAIL(ecode) (((ecode)>>16) & 0x0FFF) /**< Get detail part of error code. */ typedef uint32_t mcResult_t; /** * Return values of MobiCore driver functions. */ #define MC_DRV_OK 0x00000000 /**< Function call succeeded. */ #define MC_DRV_NO_NOTIFICATION 0x00000001 /**< No notification available. */ #define MC_DRV_ERR_NOTIFICATION 0x00000002 /**< Error during notification on communication level. */ #define MC_DRV_ERR_NOT_IMPLEMENTED 0x00000003 /**< Function not implemented. */ #define MC_DRV_ERR_OUT_OF_RESOURCES 0x00000004 /**< No more resources available. */ #define MC_DRV_ERR_INIT 0x00000005 /**< Driver initialization failed. */ #define MC_DRV_ERR_UNKNOWN 0x00000006 /**< Unknown error. */ #define MC_DRV_ERR_UNKNOWN_DEVICE 0x00000007 /**< The specified device is unknown. */ #define MC_DRV_ERR_UNKNOWN_SESSION 0x00000008 /**< The specified session is unknown. */ #define MC_DRV_ERR_INVALID_OPERATION 0x00000009 /**< The specified operation is not allowed. */ #define MC_DRV_ERR_INVALID_RESPONSE 0x0000000a /**< The response header from the MC is invalid. */ #define MC_DRV_ERR_TIMEOUT 0x0000000b /**< Function call timed out. */ #define MC_DRV_ERR_NO_FREE_MEMORY 0x0000000c /**< Can not allocate additional memory. */ #define MC_DRV_ERR_FREE_MEMORY_FAILED 0x0000000d /**< Free memory failed. */ #define MC_DRV_ERR_SESSION_PENDING 0x0000000e /**< Still some open sessions pending. */ #define MC_DRV_ERR_DAEMON_UNREACHABLE 0x0000000f /**< MC daemon not reachable */ #define MC_DRV_ERR_INVALID_DEVICE_FILE 0x00000010 /**< The device file of the kernel module could not be opened. */ #define MC_DRV_ERR_INVALID_PARAMETER 0x00000011 /**< Invalid parameter. */ #define MC_DRV_ERR_KERNEL_MODULE 0x00000012 /**< Error from Kernel Module, see DETAIL for errno. */ #define MC_DRV_ERR_BULK_MAPPING 0x00000013 /**< Error during mapping of additional bulk memory to session. */ #define MC_DRV_ERR_BULK_UNMAPPING 0x00000014 /**< Error during unmapping of additional bulk memory to session. */ #define MC_DRV_INFO_NOTIFICATION 0x00000015 /**< Notification received, exit code available. */ #define MC_DRV_ERR_NQ_FAILED 0x00000016 /**< Set up of NWd connection failed. */ #define MC_DRV_ERR_DAEMON_VERSION 0x00000017 /**< Wrong daemon version. */ #define MC_DRV_ERR_CONTAINER_VERSION 0x00000018 /**< Wrong container version. */ // those should become MCP or even detail codes on top of MC_DRV_ERR_MCP_ERROR #define MC_DRV_ERR_WRONG_PUBLIC_KEY 0x00000019 /**< System Trustlet public key is wrong. */ #define MC_DRV_ERR_CONTAINER_TYPE_MISMATCH 0x0000001a /**< Wrong containter type(s). */ #define MC_DRV_ERR_CONTAINER_LOCKED 0x0000001b /**< Container is locked (or not activated). */ #define MC_DRV_ERR_SP_NO_CHILD 0x0000001c /**< SPID is not registered with root container. */ #define MC_DRV_ERR_TL_NO_CHILD 0x0000001d /**< UUID is not registered with sp container. */ #define MC_DRV_ERR_UNWRAP_ROOT_FAILED 0x0000001e /**< Unwrapping of root container failed. */ #define MC_DRV_ERR_UNWRAP_SP_FAILED 0x0000001f /**< Unwrapping of service provider container failed. */ #define MC_DRV_ERR_UNWRAP_TRUSTLET_FAILED 0x00000020 /**< Unwrapping of Trustlet container failed. */ // use separate numbers for those in the future #define MC_DRV_ERR_DEVICE_ALREADY_OPEN MC_DRV_ERR_INVALID_OPERATION /** < Device is already open. */ #define MC_DRV_ERR_SOCKET_CONNECT MC_DRV_ERR_DAEMON_UNREACHABLE /**< MC daemon socket not reachable. */ #define MC_DRV_ERR_SOCKET_WRITE MC_DRV_ERR_DAEMON_UNREACHABLE /**< MC daemon socket write error. */ #define MC_DRV_ERR_SOCKET_READ MC_DRV_ERR_DAEMON_UNREACHABLE /**< MC daemon socket read error. */ #define MC_DRV_ERR_SOCKET_LENGTH MC_DRV_ERR_DAEMON_UNREACHABLE /**< MC daemon socket read error. */ #define MC_DRV_ERR_DAEMON_SOCKET MC_DRV_ERR_DAEMON_UNREACHABLE /**< MC daemon had problems with socket. */ #define MC_DRV_ERR_DEVICE_FILE_OPEN MC_DRV_ERR_INVALID_DEVICE_FILE /**< The device file of the kernel module could not be opened. */ #define MC_DRV_ERR_NULL_POINTER MC_DRV_ERR_INVALID_PARAMETER /**< Null pointer passed as parameter. */ #define MC_DRV_ERR_TCI_TOO_BIG MC_DRV_ERR_INVALID_PARAMETER /**< Requested TCI length is too high. */ #define MC_DRV_ERR_WSM_NOT_FOUND MC_DRV_ERR_INVALID_PARAMETER /**< Requested TCI was not allocated with mallocWsm(). */ #define MC_DRV_ERR_TCI_GREATER_THAN_WSM MC_DRV_ERR_INVALID_PARAMETER /**< Requested TCI length is bigger than allocated WSM. */ #define MC_DRV_ERR_TRUSTLET_NOT_FOUND MC_DRV_ERR_INVALID_DEVICE_FILE /** < Trustlet could not be found in mcRegistry. */ #define MC_DRV_ERR_DAEMON_KMOD_ERROR MC_DRV_ERR_DAEMON_UNREACHABLE /**< Daemon cannot use Kernel module as expected. */ #define MC_DRV_ERR_DAEMON_MCI_ERROR MC_DRV_ERR_DAEMON_UNREACHABLE /**< Daemon cannot use MCI as expected. */ #define MC_DRV_ERR_MCP_ERROR MC_DRV_ERR_DAEMON_UNREACHABLE /**< MobiCore Control Protocol error. See MC_DRV_ERROR_MCP(). */ #define MC_DRV_ERR_INVALID_LENGTH MC_DRV_ERR_NO_FREE_MEMORY /**< Invalid length. */ #define MC_DRV_ERR_KMOD_NOT_OPEN MC_DRV_ERR_NO_FREE_MEMORY /**< Device not open. */ #define MC_DRV_ERR_BUFFER_ALREADY_MAPPED MC_DRV_ERR_BULK_MAPPING /**< Buffer is already mapped to this Trustlet. */ #define MC_DRV_ERR_BLK_BUFF_NOT_FOUND MC_DRV_ERR_BULK_UNMAPPING /**< Unable to find internal handle for buffer. */ #define MC_DRV_ERR_DAEMON_DEVICE_NOT_OPEN 0x00000021 /**< No device associated with connection. */ #define MC_DRV_ERR_DAEMON_WSM_HANDLE_NOT_FOUND MC_DRV_ERR_WSM_NOT_FOUND /**< Daemon could not find WSM handle. */ #define MC_DRV_ERR_DAEMON_UNKNOWN_SESSION MC_DRV_ERR_UNKNOWN_SESSION /**< The specified session is unknown to Daemon. */ #define MAKE_MC_DRV_MCP_ERROR(mcpCode) (MC_DRV_ERR_MCP_ERROR | ((mcpCode&0x000FFFFF)<<8)) #define MAKE_MC_DRV_KMOD_WITH_ERRNO(theErrno) (MC_DRV_ERR_KERNEL_MODULE| (((theErrno)&0x0000FFFF)<<16)) /** * Driver control command. */ typedef enum { MC_CTRL_DUMMY = 1 /**< Dummy. */ } mcDriverCtrl_t; /** Structure of Session Handle, includes the Session ID and the Device ID the Session belongs to. * The session handle will be used for session-based MobiCore communication. * It will be passed to calls which address a communication end point in the MobiCore environment. */ typedef struct { uint32_t sessionId; /**< MobiCore session ID */ uint32_t deviceId; /**< Device ID the session belongs to */ } mcSessionHandle_t; /** Information structure about additional mapped Bulk buffer between the Trustlet Connector (Nwd) and * the Trustlet (Swd). This structure is initialized from a Trustlet Connector by calling mcMap(). * In order to use the memory within a Trustlet the Trustlet Connector has to inform the Trustlet with * the content of this structure via the TCI. */ typedef struct { void *sVirtualAddr; /**< The virtual address of the Bulk buffer regarding the address space of the Trustlet, already includes a possible offset! */ uint32_t sVirtualLen; /**< Length of the mapped Bulk buffer */ } mcBulkMap_t; #define MC_DEVICE_ID_DEFAULT 0 /**< The default device ID */ #define MC_INFINITE_TIMEOUT ((int32_t)(-1)) /**< Wait infinite for a response of the MC. */ #define MC_NO_TIMEOUT 0 /**< Do not wait for a response of the MC. */ #define MC_MAX_TCI_LEN 0x100000 /**< TCI/DCI must not exceed 1MiB */ /* Mark only the following functions for export */ #pragma GCC visibility push(default) /** Open a new connection to a MobiCore device. * * mcOpenDevice() initializes all device specific resources required to communicate * with an MobiCore instance located on the specified device in the system. If the device * does not exist the function will return MC_DRV_ERR_UNKNOWN_DEVICE. * * @param [in] deviceId Identifier for the MobiCore device to be used. MC_DEVICE_ID_DEFAULT refers to the default device. * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_ERR_INVALID_OPERATION if device already opened. * @return MC_DRV_ERR_DAEMON_UNREACHABLE when problems with daemon occur. * @return MC_DRV_ERR_UNKNOWN_DEVICE when deviceId is unknown. * @return MC_DRV_ERR_INVALID_DEVICE_FILE if kernel module under /dev/mobicore cannot be opened * * Uses a Mutex. */ __MC_CLIENT_LIB_API mcResult_t mcOpenDevice( uint32_t deviceId ); /** Close the connection to a MobiCore device. * When closing a device, active sessions have to be closed beforehand. * Resources associated with the device will be released. * The device may be opened again after it has been closed. * * @param [in] deviceId Identifier for the MobiCore device. MC_DEVICE_ID_DEFAULT refers to the default device. * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id is invalid. * @return MC_DRV_ERR_SESSION_PENDING when a session is still open. * @return MC_DRV_ERR_DAEMON_UNREACHABLE when problems with daemon occur. * * Uses a Mutex. */ __MC_CLIENT_LIB_API mcResult_t mcCloseDevice( uint32_t deviceId ); /** Open a new session to a Trustlet. The trustlet with the given UUID has to be available in the flash filesystem. * * Write MCP open message to buffer and notify MobiCore about the availability of a new command. * Waits till the MobiCore responses with the new session ID (stored in the MCP buffer). * * @param [in,out] session On success, the session data will be returned. Note that session.deviceId has to be the device id of an opened device. * @param [in] uuid UUID of the Trustlet to be opened. * @param [in] tci TCI buffer for communicating with the trustlet. * @param [in] tciLen Length of the TCI buffer. Maximum allowed value is MC_MAX_TCI_LEN. * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_INVALID_PARAMETER if session parameter is invalid. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id is invalid. * @return MC_DRV_ERR_DAEMON_UNREACHABLE when problems with daemon socket occur. * @return MC_DRV_ERR_UNKNOWN_DEVICE when daemon returns an error. * * Uses a Mutex. */ __MC_CLIENT_LIB_API mcResult_t mcOpenSession( mcSessionHandle_t *session, const mcUuid_t *uuid, uint8_t *tci, uint32_t tciLen ); /** Open a new session to a Trustlet. The trustlet will be loaded from the memory * buffer * * Write MCP open message to buffer and notify MobiCore about the availability of a new command. * Waits till the MobiCore responses with the new session ID (stored in the MCP buffer). * * @param [in,out] session On success, the session data will be returned. Note that session.deviceId has to be the device id of an opened device. * @param [in] spid Service Provider ID(for Service provider trustlets otherwise ignored) * @param [in] trustlet memory buffer containing the trustlet binary * @param [in] tlen length of the memory buffer containing the trustlet * @param [in] tci TCI buffer for communicating with the trustlet. * @param [in] tciLen Length of the TCI buffer. Maximum allowed value is MC_MAX_TCI_LEN. * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_INVALID_PARAMETER if session parameter is invalid. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id is invalid. * @return MC_DRV_ERR_DAEMON_UNREACHABLE when problems with daemon socket occur. * @return MC_DRV_ERR_UNKNOWN_DEVICE when daemon returns an error. * * Uses a Mutex. */ __MC_CLIENT_LIB_API mcResult_t mcOpenTrustlet( mcSessionHandle_t *session, mcSpid_t spid, uint8_t *trustlet, uint32_t tLen, uint8_t *tci, uint32_t tciLen ); /** Close a Trustlet session. * * Closes the specified MobiCore session. The call will block until the session has been closed. * * @pre Device deviceId has to be opened in advance. * * @param [in] session Session to be closed. * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_INVALID_PARAMETER if session parameter is invalid. * @return MC_DRV_ERR_UNKNOWN_SESSION when session id is invalid. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id of session is invalid. * @return MC_DRV_ERR_DAEMON_UNREACHABLE when problems with daemon occur. * @return MC_DRV_ERR_INVALID_DEVICE_FILE when daemon cannot open trustlet file. * * Uses a Mutex. */ __MC_CLIENT_LIB_API mcResult_t mcCloseSession( mcSessionHandle_t *session ); /** Notify a session. * Notifies the session end point about available message data. * If the session parameter is correct, notify will always succeed. * Corresponding errors can only be received by mcWaitNotification(). * @pre A session has to be opened in advance. * * @param session The session to be notified. * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_INVALID_PARAMETER if session parameter is invalid. * @return MC_DRV_ERR_UNKNOWN_SESSION when session id is invalid. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id of session is invalid. */ __MC_CLIENT_LIB_API mcResult_t mcNotify( mcSessionHandle_t *session ); /** Wait for a notification. * * Wait for a notification issued by the MobiCore for a specific session. * The timeout parameter specifies the number of milliseconds the call will wait for a notification. * If the caller passes 0 as timeout value the call will immediately return. If timeout value is below 0 the call will block * until a notification for the session has been received. * * @attention if timeout is below 0, call will block: * Caller has to trust the other side to send a notification to wake him up again. * * @param [in] session The session the notification should correspond to. * @param [in] timeout Time in milliseconds to wait (MC_NO_TIMEOUT : direct return, > 0 : milliseconds, MC_INFINITE_TIMEOUT : wait infinitely) * * @return MC_DRV_OK if notification is available. * @return MC_DRV_ERR_TIMEOUT if no notification arrived in time. * @return MC_DRV_INFO_NOTIFICATION if a problem with the session was encountered. Get more details with mcGetSessionErrorCode(). * @return MC_DRV_ERR_NOTIFICATION if a problem with the socket occurred. * @return MC_DRV_INVALID_PARAMETER if a parameter is invalid. * @return MC_DRV_ERR_UNKNOWN_SESSION when session id is invalid. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id of session is invalid. */ __MC_CLIENT_LIB_API mcResult_t mcWaitNotification( mcSessionHandle_t *session, int32_t timeout ); /** * Allocate a block of world shared memory (WSM). * The MC driver allocates a contiguous block of memory which can be used as WSM. * This implicates that the allocated memory is aligned according to the alignment parameter. * Always returns a buffer of size WSM_SIZE aligned to 4K. * * @param [in] deviceId The ID of an opened device to retrieve the WSM from. * @param [in] align The alignment (number of pages) of the memory block (e.g. 0x00000001 for 4kb). * @param [in] len Length of the block in bytes. * @param [out] wsm Virtual address of the world shared memory block. * @param [in] wsmFlags Platform specific flags describing the memory to be allocated. * * @attention: align and wsmFlags are currently ignored * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_INVALID_PARAMETER if a parameter is invalid. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id is invalid. * @return MC_DRV_ERR_NO_FREE_MEMORY if no more contiguous memory is available in this size or for this process. * * Uses a Mutex. */ __MC_CLIENT_LIB_API mcResult_t mcMallocWsm( uint32_t deviceId, uint32_t align, uint32_t len, uint8_t **wsm, uint32_t wsmFlags ); /** * Free a block of world shared memory (WSM). * The MC driver will free a block of world shared memory (WSM) previously allocated with * mcMallocWsm(). The caller has to assure that the address handed over to the driver * is a valid WSM address. * * @param [in] deviceId The ID to which the given address belongs. * @param [in] wsm Address of WSM block to be freed. * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_INVALID_PARAMETER if a parameter is invalid. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id is invalid. * @return MC_DRV_ERR_FREE_MEMORY_FAILED on failures. * * Uses a Mutex. */ __MC_CLIENT_LIB_API mcResult_t mcFreeWsm( uint32_t deviceId, uint8_t *wsm ); /** * Map additional bulk buffer between a Trustlet Connector (TLC) and the Trustlet (TL) for a session. * Memory allocated in user space of the TLC can be mapped as additional communication channel * (besides TCI) to the Trustlet. Limitation of the Trustlet memory structure apply: only 6 chunks can be mapped * with a maximum chunk size of 1 MiB each. * * @attention It is up to the application layer (TLC) to inform the Trustlet about the additional mapped bulk memory. * * @param [in] session Session handle with information of the deviceId and the sessionId. The * given buffer is mapped to the session specified in the sessionHandle. * @param [in] buf Virtual address of a memory portion (relative to TLC) to be shared with the Trustlet, already includes a possible offset! * @param [in] len length of buffer block in bytes. * @param [out] mapInfo Information structure about the mapped Bulk buffer between the TLC (Nwd) and * the TL (Swd). * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_INVALID_PARAMETER if a parameter is invalid. * @return MC_DRV_ERR_UNKNOWN_SESSION when session id is invalid. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id of session is invalid. * @return MC_DRV_ERR_DAEMON_UNREACHABLE when problems with daemon occur. * @return MC_DRV_ERR_BULK_MAPPING when buf is already uses as bulk buffer or when registering the buffer failed. * * Uses a Mutex. */ __MC_CLIENT_LIB_API mcResult_t mcMap( mcSessionHandle_t *session, void *buf, uint32_t len, mcBulkMap_t *mapInfo ); /** * Remove additional mapped bulk buffer between Trustlet Connector (TLC) and the Trustlet (TL) for a session. * * @attention The bulk buffer will immediately be unmapped from the session context. * @attention The application layer (TLC) must inform the TL about unmapping of the additional bulk memory before calling mcUnmap! * * @param [in] session Session handle with information of the deviceId and the sessionId. The * given buffer is unmapped from the session specified in the sessionHandle. * @param [in] buf Virtual address of a memory portion (relative to TLC) shared with the TL, already includes a possible offset! * @param [in] mapInfo Information structure about the mapped Bulk buffer between the TLC (Nwd) and * the TL (Swd). * @attention The clientlib currently ignores the len field in mapInfo. * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_INVALID_PARAMETER if a parameter is invalid. * @return MC_DRV_ERR_UNKNOWN_SESSION when session id is invalid. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id of session is invalid. * @return MC_DRV_ERR_DAEMON_UNREACHABLE when problems with daemon occur. * @return MC_DRV_ERR_BULK_UNMAPPING when buf was not registered earlier or when unregistering failed. * * Uses a Mutex. */ __MC_CLIENT_LIB_API mcResult_t mcUnmap( mcSessionHandle_t *session, void *buf, mcBulkMap_t *mapInfo ); /** * @attention: Not implemented. * Execute driver specific command. * mcDriverCtrl() can be used to execute driver specific commands. * Besides the control command MC_CTRL_GET_VERSION commands are implementation specific. * Please refer to the corresponding specification of the driver manufacturer. * * @param [in] param Command ID of the command to be executed. * @param [in, out] data Command data and response depending on command. * @param [in] len Length of the data block. * * @return MC_DRV_ERR_NOT_IMPLEMENTED. */ __MC_CLIENT_LIB_API mcResult_t mcDriverCtrl( mcDriverCtrl_t param, uint8_t *data, uint32_t len ); /** * Get additional error information of the last error that occured on a session. * After the request the stored error code will be deleted. * * @param [in] session Session handle with information of the deviceId and the sessionId. * @param [out] lastErr >0 Trustlet has terminated itself with this value, <0 Trustlet is dead because of an error within the MobiCore (e.g. Kernel exception). * See also notificationPayload_t enum in MCI definition at "mcinq.h". * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_INVALID_PARAMETER if a parameter is invalid. * @return MC_DRV_ERR_UNKNOWN_SESSION when session id is invalid. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device id of session is invalid. */ __MC_CLIENT_LIB_API mcResult_t mcGetSessionErrorCode( mcSessionHandle_t *session, int32_t *lastErr ); /** * Get MobiCore version information of a device. * * @param [in] deviceId of an open device. * @param [out] versionInfo MobiCore version info. * * @return MC_DRV_OK if operation has been successfully completed. * @return MC_DRV_ERR_UNKNOWN_DEVICE when device is not open. * @return MC_DRV_INVALID_PARAMETER if a parameter is invalid. * @return MC_DRV_ERR_DAEMON_UNREACHABLE when problems with daemon occur. */ __MC_CLIENT_LIB_API mcResult_t mcGetMobiCoreVersion( uint32_t deviceId, mcVersionInfo_t *versionInfo ); #pragma GCC visibility pop #endif /** MCDRIVER_H_ */ /** @} */