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/*
* mms_client_connection.h
*
* Copyright 2013-2018 Michael Zillgith
*
* This file is part of libIEC61850.
*
* libIEC61850 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libIEC61850 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with libIEC61850. If not, see <http://www.gnu.org/licenses/>.
*
* See COPYING file for the complete license text.
*/
#ifndef MMS_CLIENT_CONNECTION_H_
#define MMS_CLIENT_CONNECTION_H_
#ifdef __cplusplus
extern "C" {
#endif
/**
* \defgroup mms_client_api_group MMS client API (for IEC 61850 use IEC 61850 client API instead!)
*/
/**@{*/
#include "libiec61850_common_api.h"
#include "mms_common.h"
#include "mms_type_spec.h"
#include "mms_value.h"
#include "iso_connection_parameters.h"
#include "linked_list.h"
#include "tls_config.h"
/**
* Contains MMS layer specific parameters
*/
typedef struct sMmsConnectionParameters {
int maxServOutstandingCalling;
int maxServOutstandingCalled;
int dataStructureNestingLevel;
int maxPduSize; /* local detail */
uint8_t servicesSupported[11];
} MmsConnectionParameters;
typedef struct {
char* vendorName;
char* modelName;
char* revision;
} MmsServerIdentity;
typedef enum {
MMS_CONNECTION_STATE_CLOSED,
MMS_CONNECTION_STATE_CONNECTING,
MMS_CONNECTION_STATE_CONNECTED,
MMS_CONNECTION_STATE_CLOSING
} MmsConnectionState;
typedef void (*MmsInformationReportHandler) (void* parameter, char* domainName,
char* variableListName, MmsValue* value, bool isVariableListName);
/**
* Opaque handle for MMS client connection instance.
*/
typedef struct sMmsConnection* MmsConnection;
/*******************************************************************************
* Connection management functions
*******************************************************************************/
/**
* \brief Create a new MmsConnection instance
*
* \return the newly created instance.
*/
LIB61850_API MmsConnection
MmsConnection_create(void);
/**
* \brief Create a new secure (TLS enabled) MmsConnection instance
*
* \param tlsConfig TLS configuration parameters and certificates
*
* \return the newly created instance.
*/
LIB61850_API MmsConnection
MmsConnection_createSecure(TLSConfiguration tlsConfig);
/**
* \brief Create a new MmsConnection instance configured for non-threaded mode
*
* NOTE: This constructor doesn't create a background thread for connection handling.
* The user has to call the MmsConnection_tick function periodically to ensure that
* the MMS connection can be handled properly.
*
* \param tlsConfig TLS configuration parameters and certificates or NULL for non-TLS mode.
*
* \return the newly created instance.
*/
LIB61850_API MmsConnection
MmsConnection_createNonThreaded(TLSConfiguration tlsConfig);
/**
* \brief Callback function to intercept raw MMS messages
*
* IMPORTANT: the message buffer is only valid in the context of the the callback function. If the
* message data is required elsewhere it has to be copied here!
*
* \param parameter user provided parameter that is passed to the callback function
* \param message buffer of the message.
* \param messageLength length of the message in bytes
* \param received if true message has been received, false when message has been sent.
*/
typedef void (*MmsRawMessageHandler) (void* parameter, uint8_t* message, int messageLength, bool received);
/**
* \brief Set the callback handler to intercept the raw MMS messages of the connection
*
* This function can be used to log raw MMS messages. It may be useful for debugging purposes
* or advanced test tools. This function will only work when the flag CONFIG_MMS_RAW_MESSAGE_LOGGING
* it set in stack_config.h
*
* \param self MmsConnection instance to operate on
* \param handler the connection specific callback function
* \param a user provided parameter passed to the callback function (use NULL if not required).
*/
LIB61850_API void
MmsConnection_setRawMessageHandler(MmsConnection self, MmsRawMessageHandler handler, void* parameter);
/**
* \brief Set the virtual filestore basepath for the MMS obtain file services
*
* All external file service accesses will be mapped to paths relative to the base directory.
* NOTE: This function is only available when the CONFIG_SET_FILESTORE_BASEPATH_AT_RUNTIME
* option in stack_config.h is set.
*
* \param self the MmsServer instance
* \param basepath the new virtual filestore basepath
*/
LIB61850_API void
MmsConnection_setFilestoreBasepath(MmsConnection self, const char* basepath);
/**
* \brief Set the request timeout in ms for this connection
*
* \param self MmsConnection instance to operate on
* \param timeoutInMs request timeout in milliseconds
*/
LIB61850_API void
MmsConnection_setRequestTimeout(MmsConnection self, uint32_t timeoutInMs);
/**
* \brief Get the request timeout in ms for this connection
*
* \param self MmsConnection instance to operate on
*
* \return request timeout in milliseconds
*/
LIB61850_API uint32_t
MmsConnection_getRequestTimeout(MmsConnection self);
/**
* \brief Set the connect timeout in ms for this connection instance
*
* \param self MmsConnection instance to operate on
* \param timeoutInMs connect timeout in milliseconds
*/
LIB61850_API void
MmsConnection_setConnectTimeout(MmsConnection self, uint32_t timeoutInMs);
/**
* \brief Install a handler function for MMS information reports (unsolicited messages from the server).
*
* The handler function will be called whenever the client receives an MMS information report message.
* Note that the API user is responsible to properly free the passed MmsValue object.
*
* \param self MmsConnection instance to operate on
* \param handler the handler function to install for this client connection
* \param parameter a user specified parameter that will be passed to the handler function on each
* invocation.
*/
LIB61850_API void
MmsConnection_setInformationReportHandler(MmsConnection self, MmsInformationReportHandler handler,
void* parameter);
/**
* \brief Get the ISO connection parameters for an MmsConnection instance
*
* \param self MmsConnection instance to operate on
* \return params the to be used by this connection
*/
LIB61850_API IsoConnectionParameters
MmsConnection_getIsoConnectionParameters(MmsConnection self);
/**
* \brief Get the MMS specific connection parameters for an MmsConnection instance
*
* \param self MmsConnection instance to operate on
* \return params the to be used by this connection
*/
LIB61850_API MmsConnectionParameters
MmsConnection_getMmsConnectionParameters(MmsConnection self);
typedef void (*MmsConnectionStateChangedHandler) (MmsConnection connection, void* parameter, MmsConnectionState newState);
LIB61850_API void
MmsConnection_setConnectionStateChangedHandler(MmsConnection self, MmsConnectionStateChangedHandler handler, void* parameter);
/**
* \brief User provided handler function that will be called if the connection to the server is lost
*
* \param connection MmsConnection object of the lost connection
* \param parameter user provided parameter.
*/
typedef void (*MmsConnectionLostHandler) (MmsConnection connection, void* parameter);
/**
* \brief Install a callback function that will be called by the client stack if the MMS connection to the server is lost
*
* \param handler the user provided callback function
* \param handlerParameter a parameter that will be passed to the callback function. Can be set to NULL if not required.
*/
LIB61850_API void
MmsConnection_setConnectionLostHandler(MmsConnection self, MmsConnectionLostHandler handler, void* handlerParameter);
/**
* \brief Set the ISO connection parameters for a MmsConnection instance
*
* \param self MmsConnection instance to operate on
* \param params the ISO client parameters to use
*/
LIB61850_API void
MmsConnection_setIsoConnectionParameters(MmsConnection self, IsoConnectionParameters* params);
/**
* \brief Destroy an MmsConnection instance and release all resources
*
* \param self MmsConnection instance to operate on
*/
LIB61850_API void
MmsConnection_destroy(MmsConnection self);
/*******************************************************************************
* Blocking functions for connection establishment and data access
*******************************************************************************/
/**
* \brief Connect to an MMS server.
*
* This will open a new TCP connection and send a MMS initiate request.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param serverName hostname or IP address of the server to connect
* \param serverPort TCP port number of the server to connect or -1 to use default port (102 for MMS or 3872 for MMS over TLS)
*
* \return true on success. false if the connection attempt failed.
*/
LIB61850_API bool
MmsConnection_connect(MmsConnection self, MmsError* mmsError, const char* serverName, int serverPort);
LIB61850_API void
MmsConnection_connectAsync(MmsConnection self, MmsError* mmsError, const char* serverName, int serverPort);
/**
* \brief Call MmsConnection state machine and connection handling code (for non-threaded mode only)
*
* This function has to be called periodically by the user application in non-threaded mode.
*
* \return true when connection is currently waiting and calling thread can be suspended, false means
* connection is busy and the tick function should be called again as soon as possible.
*/
LIB61850_API bool
MmsConnection_tick(MmsConnection self);
/**
* \brief Close the connection - not recommended
*
* This service simply closes the TCP socket without any hand-shaking with the server.
* This behavior is not specified. Use with care!
*
* \param self MmsConnection instance to operate on
*/
LIB61850_API void
MmsConnection_close(MmsConnection self);
typedef void
(*MmsConnection_ConcludeAbortHandler) (void* parameter, MmsError mmsError, bool success);
/**
* \brief Uses the MMS/ACSE abort service to close the connection to the server
*
* This service should be used to abruptly interrupt the connection to the server. It is not quite clear what the
* benefit of this service is (simply closing the TCP connection should do the same). Though it is required by
* conformance tests. In case the server doesn't close the connection after the internal timeout interval the
* client will close the TCP connection and set mmsError to MMS_ERROR_SERVICE_TIMEOUT.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
*/
LIB61850_API void
MmsConnection_abort(MmsConnection self, MmsError* mmsError);
LIB61850_API void
MmsConnection_abortAsync(MmsConnection self, MmsError* mmsError);
/**
* \brief Uses the MMS conclude service to close the connection to the server
*
* This should be used to orderly release the connection to the server. If the server denies the conclude
* request (by sending a concludeError PDU) this service fails with an error (mmsError set accordingly) and
* the connection remains open. In this case the close or abort methods have to be used to close the connection.
* It is not quite clear if this service is really useful but it is required by conformance tests.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
*/
LIB61850_API void
MmsConnection_conclude(MmsConnection self, MmsError* mmsError);
LIB61850_API void
MmsConnection_concludeAsync(MmsConnection self, MmsError* mmsError, MmsConnection_ConcludeAbortHandler handler, void* parameter);
typedef void
(*MmsConnection_GenericServiceHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, bool success);
typedef void
(*MmsConnection_GetNameListHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, LinkedList nameList, bool moreFollows);
/**
* \brief Get the names of all VMD scope variables of the server.
*
* This will result in a VMD specific GetNameList request.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
*
* \return the of VMD specific variable names or NULL if the request failed.
*/
LIB61850_API LinkedList /* <char*> */
MmsConnection_getVMDVariableNames(MmsConnection self, MmsError* mmsError);
LIB61850_API uint32_t
MmsConnection_getVMDVariableNamesAsync(MmsConnection self, MmsError* mmsError, const char* continueAfter,
MmsConnection_GetNameListHandler handler, void* parameter);
/**
* \brief Get the domains names for all domains of the server.
*
* This will result in a VMD specific GetNameList request.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variaextern "C" {ble to store error code
*
* \return the list of domain names or NULL if the request failed.
*
*/
LIB61850_API LinkedList /* <char*> */
MmsConnection_getDomainNames(MmsConnection self, MmsError* mmsError);
/**
* \brief Get the domain names of the server (asynchronous version).
*
* \param[in] self MmsConnection instance to operate on
* \param[out] mmsError user provided variable to store error code
* \param[in] continueAfter the name of the last received element when the call is a continuation, or NULL for the first call
* \param[in] result list to store (append) the response names, or NULL to create a new list for the response names
* \param[in] handler will be called when response is received or timed out.
* \param[in] parameter
*
* \return the invoke ID of the request
*/
LIB61850_API uint32_t
MmsConnection_getDomainNamesAsync(MmsConnection self, MmsError* mmsError, const char* continueAfter, LinkedList result,
MmsConnection_GetNameListHandler handler, void* parameter);
/**
* \brief Get the names of all variables present in a MMS domain of the server.
*
* This will result in a domain specific GetNameList request.
*
* \param[in] self MmsConnection instance to operate on
* \param[out] mmsError user provided variable to store error code
* \param[in] domainId the domain name for the domain specific request
*
* \return the of domain specific variable names or NULL if the request failed.
*/
LIB61850_API LinkedList /* <char*> */
MmsConnection_getDomainVariableNames(MmsConnection self, MmsError* mmsError, const char* domainId);
/**
* \brief Get the names of all variables present in a MMS domain of the server (asynchronous version).
*
* This will result in a domain specific GetNameList request.
*
* \param[in] self MmsConnection instance to operate on
* \param[out] mmsError user provided variable to store error code
* \param[in] domainId the domain name for the domain specific request
* \param[in] continueAfter the name of the last received element when the call is a continuation, or NULL for the first call
* \param[in] result list to store (append) the response names, or NULL to create a new list for the response names
* \param[in] handler will be called when response is received or timed out.
* \param[in] parameter
*
* \return the invoke ID of the request
*/
LIB61850_API uint32_t
MmsConnection_getDomainVariableNamesAsync(MmsConnection self, MmsError* mmsError, const char* domainId,
const char* continueAfter, LinkedList result, MmsConnection_GetNameListHandler handler, void* parameter);
/**
* \brief Get the names of all named variable lists present in a MMS domain or VMD scope of the server.
*
* This will result in a domain specific GetNameList request.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name for the domain specific request or NULL for a VMD scope request
*
* \return the domain specific named variable list names or NULL if the request failed.
*/
LIB61850_API LinkedList /* <char*> */
MmsConnection_getDomainVariableListNames(MmsConnection self, MmsError* mmsError, const char* domainId);
LIB61850_API uint32_t
MmsConnection_getDomainVariableListNamesAsync(MmsConnection self, MmsError* mmsError, const char* domainId,
const char* continueAfter, LinkedList result, MmsConnection_GetNameListHandler handler, void* parameter);
/**
* \brief Get the names of all journals present in a MMS domain of the server
*
* This will result in a domain specific GetNameList request.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name for the domain specific request
*
* \return the domain specific journal names or NULL if the request failed.
*/
LIB61850_API LinkedList /* <char*> */
MmsConnection_getDomainJournals(MmsConnection self, MmsError* mmsError, const char* domainId);
LIB61850_API uint32_t
MmsConnection_getDomainJournalsAsync(MmsConnection self, MmsError* mmsError, const char* domainId,
const char* continueAfter, MmsConnection_GetNameListHandler handler, void* parameter);
/**
* \brief Get the names of all named variable lists associated with this client connection.
*
* This will result in an association specific GetNameList request.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
*
* \return the association specific named variable list names or NULL if the request failed.
*/
LIB61850_API LinkedList /* <char*> */
MmsConnection_getVariableListNamesAssociationSpecific(MmsConnection self, MmsError* mmsError);
LIB61850_API uint32_t
MmsConnection_getVariableListNamesAssociationSpecificAsync(MmsConnection self, MmsError* mmsError,
const char* continueAfter, MmsConnection_GetNameListHandler handler, void* parameter);
/**
* \brief Read a single variable from the server.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable to be read or NULL to read a VMD specific named variable
* \param itemId name of the variable to be read
*
* \return Returns a MmsValue object or NULL if the request failed. The MmsValue object can
* either be a simple value or a complex value or array. It is also possible that the return value is NULL
* even if mmsError = MMS_ERROR_NON. This is the case when the servers returns an empty result list.
*/
LIB61850_API MmsValue*
MmsConnection_readVariable(MmsConnection self, MmsError* mmsError, const char* domainId, const char* itemId);
typedef void
(*MmsConnection_ReadVariableHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, MmsValue* value);
/**
* \brief Read a single variable from the server (asynchronous version)
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable to be read or NULL to read a VMD specific named variable
* \param itemId name of the variable to be read
*
* \return invoke ID of the request when the request was sent successfully
*/
LIB61850_API uint32_t
MmsConnection_readVariableAsync(MmsConnection self, MmsError* mmsError, const char* domainId, const char* itemId,
MmsConnection_ReadVariableHandler handler, void* parameter);
/**
* \brief Read a component of a single variable from the server.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable to be read or NULL to read a VMD specific named variable
* \param itemId name of the variable to be read
* \param componentId the component name
*
* \return Returns a MmsValue object or NULL if the request failed. The MmsValue object can
* either be a simple value or a complex value or array. It is also possible that the return value is NULL
* even if mmsError = MMS_ERROR_NON. This is the case when the servers returns an empty result list.
*/
LIB61850_API MmsValue*
MmsConnection_readVariableComponent(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId, const char* componentId);
/**
* \brief Read a component of a single variable from the server (asynchronous version)
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable to be read or NULL to read a VMD specific named variable
* \param itemId name of the variable to be read
* \param componentId the component name
* \param handler
* \param parameter
*
* \return invoke ID of the request when the request was sent successfully
*/
LIB61850_API uint32_t
MmsConnection_readVariableComponentAsync(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId, const char* componentId,
MmsConnection_ReadVariableHandler handler, void* parameter);
/**
* \brief Read one or more elements of a single array variable from the server.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable to be read
* \param itemId name of the variable to be read
* \param startIndex index of element to read or start index if a element range is to be read
* \param numberOfElements Number of elements to read or 0 if a single element is to be read
*
* \return Returns a MmsValue object or NULL if the request failed. The MmsValue object is either
* a simple or complex type if numberOfElements is 0, or an array containing the selected
* array elements of numberOfElements > 0.
*/
LIB61850_API MmsValue*
MmsConnection_readArrayElements(MmsConnection self, MmsError* mmsError, const char* domainId, const char* itemId,
uint32_t startIndex, uint32_t numberOfElements);
/**
* \brief Read one or more elements of a single array variable from the server (asynchronous version)
*
* NOTE: The MmsValue object received by the callback function is either a simple or complex type if numberOfElements is 0, or an array
* containing the selected array elements of numberOfElements > 0.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable to be read
* \param itemId name of the variable to be read
* \param startIndex index of element to read or start index if a element range is to be read
* \param numberOfElements Number of elements to read or 0 if a single element is to be read
*
* \return invoke ID of the request when the request was sent successfully
*/
LIB61850_API uint32_t
MmsConnection_readArrayElementsAsync(MmsConnection self, MmsError* mmsError, const char* domainId, const char* itemId,
uint32_t startIndex, uint32_t numberOfElements,
MmsConnection_ReadVariableHandler handler, void* parameter);
/**
* \brief Read a single element (with optional component specification) from the server
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable to be read
* \param itemId name of the variable to be read
* \param index array element index
* \param componentId array element component name
*
* \return Returns a MmsValue object or NULL if the request failed.
*/
LIB61850_API MmsValue*
MmsConnection_readSingleArrayElementWithComponent(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId, uint32_t index, const char* componentId);
LIB61850_API uint32_t
MmsConnection_readSingleArrayElementWithComponentAsync(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId,
uint32_t index, const char* componentId,
MmsConnection_ReadVariableHandler handler, void* parameter);
/**
* \brief Read multiple variables of a domain from the server with one request message.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the requested variables.
* \param items: LinkedList<char*> is the list of item IDs of the requested variables.
*
* \return Returns a MmsValue object or NULL if the request failed. The MmsValue object is
* is of type MMS_ARRAY and contains the variable values of simple or complex type
* in the order as they appeared in the item ID list.
*/
LIB61850_API MmsValue*
MmsConnection_readMultipleVariables(MmsConnection self, MmsError* mmsError, const char* domainId,
LinkedList /*<char*>*/ items);
LIB61850_API uint32_t
MmsConnection_readMultipleVariablesAsync(MmsConnection self, MmsError* mmsError,
const char* domainId, LinkedList /*<char*>*/items,
MmsConnection_ReadVariableHandler handler, void* parameter);
/**
* \brief Write a single variable to the server.
*
* NOTE: added return value in version 1.1
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable to be written
* \param itemId name of the variable to be written
* \param value value of the variable to be written
*
* \return when successful, the data access error value returned by the server
*/
LIB61850_API MmsDataAccessError
MmsConnection_writeVariable(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId, MmsValue* value);
typedef void
(*MmsConnection_WriteVariableHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, MmsDataAccessError accessError);
LIB61850_API uint32_t
MmsConnection_writeVariableAsync(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId, MmsValue* value,
MmsConnection_WriteVariableHandler handler, void* parameter);
/**
* \brief Write a single array element with a component to an array type variable
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable to be written
* \param itemId name of the variable to be written
* \param arrayIndex the index of the array element.
* \param componentId the name of the component of the array element
* \param value value of the array element component to be written.
*
* \return when successful, the data access error value returned by the server
*/
LIB61850_API MmsDataAccessError
MmsConnection_writeSingleArrayElementWithComponent(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId,
uint32_t arrayIndex, const char* componentId, MmsValue* value);
LIB61850_API uint32_t
MmsConnection_writeSingleArrayElementWithComponentAsync(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId,
uint32_t arrayIndex, const char* componentId, MmsValue* value,
MmsConnection_WriteVariableHandler handler, void* parameter);
/**
* \brief Write a single array element or a sub array to an array type variable
*
* When a single array element is addressed the MmsValue object value has to be of the type
* of the array elements. When multiple array elements have to be written (index range) the
* MmsValue object value has to be of type MMS_ARRAY containing "numberOfElements" elements.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable to be written
* \param index the index of the array element or the start index of a index range
* \param numberOfElements the number of array elements to write starting with index. If 0 only one array element is written.
* \param itemId name of the variable to be written
* \param value value of the array element(s) to be written. Has to be of the type of
* the array elements or of type MMS_ARRAY when it is a sub array (index range)
*
* \return when successful, the data access error value returned by the server
*/
LIB61850_API MmsDataAccessError
MmsConnection_writeArrayElements(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId, int index, int numberOfElements,
MmsValue* value);
LIB61850_API uint32_t
MmsConnection_writeArrayElementsAsync(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId, int index, int numberOfElements,
MmsValue* value,
MmsConnection_WriteVariableHandler handler, void* parameter);
typedef void
(*MmsConnection_WriteMultipleVariablesHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, LinkedList /* <MmsValue*> */ accessResults);
/**
* \brief Write multiple variables to the server.
*
* This function will write multiple variables to the server.
*
* The parameter accessResults is a pointer to a LinkedList reference. The methods will create a new LinkedList
* object that contains the AccessResults of the single variable write attempts. It is up to the user to free this
* objects properly (e.g. with LinkedList_destroyDeep(accessResults, MmsValue_delete)).
*
* \param[in] self MmsConnection instance to operate on
* \param[out] mmsError user provided variable to store error code
* \param[in] domainId the common domain name of all variables to be written
* \param[in] items a linked list containing the names of the variables to be written. The names are C strings.
* \param[out] values values of the variables to be written
* \param[out] the MmsValue objects of type MMS_DATA_ACCESS_ERROR representing the write success of a single variable
* write.
*/
LIB61850_API void
MmsConnection_writeMultipleVariables(MmsConnection self, MmsError* mmsError, const char* domainId,
LinkedList /*<char*>*/ items, LinkedList /* <MmsValue*> */ values,
LinkedList* /* <MmsValue*> */ accessResults);
LIB61850_API uint32_t
MmsConnection_writeMultipleVariablesAsync(MmsConnection self, MmsError* mmsError, const char* domainId,
LinkedList /*<char*>*/ items, LinkedList /* <MmsValue*> */ values,
MmsConnection_WriteMultipleVariablesHandler handler, void* parameter);
/**
* \brief Write named variable list values to the server.
*
* The parameter accessResults is a pointer to a LinkedList reference. The methods will create a new LinkedList
* object that contains the AccessResults of the single variable write attempts. It is in the responsibility of
* the user to free this objects properly (e.g. with LinkedList_destroyDeep(accessResults, MmsValue_delete)).
* If accessResult is the to NULL the result will not be stored.
*
* \param[in] self MmsConnection instance to operate on
* \param[out] mmsError user provided variable to store error code
* \param[in] isAssociationSpecifc true if the named variable list is an association specific named variable list
* \param[in] domainId the common domain name of all variables to be written
* \param[out] values values of the variables to be written
* \param[out] the MmsValue objects of type MMS_DATA_ACCESS_ERROR representing the write success of a single variable
* write.
*/
LIB61850_API void
MmsConnection_writeNamedVariableList(MmsConnection self, MmsError* mmsError, bool isAssociationSpecific,
const char* domainId, const char* itemId, LinkedList /* <MmsValue*> */values,
LinkedList* /* <MmsValue*> */accessResults);
LIB61850_API uint32_t
MmsConnection_writeNamedVariableListAsync(MmsConnection self, MmsError* mmsError, bool isAssociationSpecific,
const char* domainId, const char* itemId, LinkedList /* <MmsValue*> */values,
MmsConnection_WriteMultipleVariablesHandler handler, void* parameter);
/**
* \brief Get the variable access attributes of a MMS named variable of the server
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the variable or NULL for a VMD specific request
* \param itemId name of the variable
*
* \return Returns a MmsTypeSpecification object or NULL if the request failed.
*/
LIB61850_API MmsVariableSpecification*
MmsConnection_getVariableAccessAttributes(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId);
typedef void
(*MmsConnection_GetVariableAccessAttributesHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, MmsVariableSpecification* spec);
LIB61850_API uint32_t
MmsConnection_getVariableAccessAttributesAsync(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* itemId,
MmsConnection_GetVariableAccessAttributesHandler, void* parameter);
/**
* \brief Read the values of a domain specific named variable list
*
* The resulting named variable list will either be of domain scope (when the domainId argument
* is present) or VMD scope when the domainId argument is NULL.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the requested variables.
* \param listName the name of the named variable list
* \param specWithResult if specWithResult is set to true, a IEC 61850 compliant request will be sent.
*
* \return Returns a MmsValue object or NULL if the request failed. The MmsValue object is
* is of type MMS_ARRAY and contains the variable values of simple or complex type
* in the order as they appeared in named variable list definition.
*/
LIB61850_API MmsValue*
MmsConnection_readNamedVariableListValues(MmsConnection self, MmsError* mmsError, const char* domainId,
const char* listName, bool specWithResult);
LIB61850_API uint32_t
MmsConnection_readNamedVariableListValuesAsync(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* listName, bool specWithResult,
MmsConnection_ReadVariableHandler handler, void* parameter);
/**
* \brief Read the values of a association specific named variable list
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param listName the name of the named variable list
* \param specWithResult if specWithResult is set to true, a IEC 61850 compliant request will be sent.
*
* \return Returns a MmsValue object or NULL if the request failed. The MmsValue object is
* is of type MMS_ARRAY and contains the variable values of simple or complex type
* in the order as they appeared in named variable list definition.
*/
LIB61850_API MmsValue*
MmsConnection_readNamedVariableListValuesAssociationSpecific(MmsConnection self, MmsError* mmsError,
const char* listName, bool specWithResult);
LIB61850_API uint32_t
MmsConnection_readNamedVariableListValuesAssociationSpecificAsync(MmsConnection self, MmsError* mmsError,
const char* listName, bool specWithResult,
MmsConnection_ReadVariableHandler handler, void* parameter);
/**
* \brief Define a new VMD or domain scoped named variable list at the server.
*
* The resulting named variable list will either be of domain scope (when the domainId argument
* is present) or VMD scope when the domainId argument is NULL.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the domain for the new variable list
* \param listName the name of the named variable list
* \param variableSpecs a list of variable specifications for the new variable list. The list
* elements have to be of type MmsVariableAccessSpecification*.
*/
LIB61850_API void
MmsConnection_defineNamedVariableList(MmsConnection self, MmsError* mmsError, const char* domainId,
const char* listName, LinkedList variableSpecs);
LIB61850_API uint32_t
MmsConnection_defineNamedVariableListAsync(MmsConnection self, MmsError* mmsError, const char* domainId,
const char* listName, LinkedList variableSpecs,
MmsConnection_GenericServiceHandler handler, void* parameter);
/**
* \brief Define a new association specific named variable list at the server.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param listName the name of the named variable list
* \param variableSpecs list of variable specifications for the new variable list.The list
* elements have to be of type MmsVariableAccessSpecification*.
*/
LIB61850_API void
MmsConnection_defineNamedVariableListAssociationSpecific(MmsConnection self, MmsError* mmsError,
const char* listName, LinkedList variableSpecs);
LIB61850_API uint32_t
MmsConnection_defineNamedVariableListAssociationSpecificAsync(MmsConnection self, MmsError* mmsError,
const char* listName, LinkedList variableSpecs,
MmsConnection_GenericServiceHandler handler, void* parameter);
/**
* \brief Read the entry list of a named variable list at the server.
*
* The resulting named variable list will either be of domain scope (when the domainId argument
* is present) or VMD scope when the domainId argument is NULL.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the domain of the variable list
* \param listName the name of the named variable list
* \param deletable THIS IS A OUTPUT PARAMETER - indicates if the variable list is deletable by the
* client. The user may provide a NULL pointer if the value doesn't matter.
*
* \return List of names of the variable list entries or NULL if the request failed
*/
LIB61850_API LinkedList /* <MmsVariableAccessSpecification*> */
MmsConnection_readNamedVariableListDirectory(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* listName, bool* deletable);
typedef void
(*MmsConnection_ReadNVLDirectoryHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, LinkedList /* <MmsVariableAccessSpecification*> */ specs, bool deletable);
LIB61850_API uint32_t
MmsConnection_readNamedVariableListDirectoryAsync(MmsConnection self, MmsError* mmsError,
const char* domainId, const char* listName,
MmsConnection_ReadNVLDirectoryHandler handler, void* parameter);
/**
* \brief Read the entry list of an association specific named variable list at the server.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param listName the name of the named variable list
*
* \return List of names of the variable list entries or NULL if the request failed
*/
LIB61850_API LinkedList /* <MmsVariableAccessSpecification*> */
MmsConnection_readNamedVariableListDirectoryAssociationSpecific(MmsConnection self, MmsError* mmsError,
const char* listName, bool* deletable);
LIB61850_API uint32_t
MmsConnection_readNamedVariableListDirectoryAssociationSpecificAsync(MmsConnection self, MmsError* mmsError,
const char* listName,
MmsConnection_ReadNVLDirectoryHandler handler, void* parameter);
/**
* \brief Delete a named variable list at the server.
*
* The resulting named variable list will either be of domain scope (when the domainId argument
* is present) or VMD scope when the domainId argument is NULL.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param domainId the domain name of the domain of the variable list
* \param listName the name of the named variable list
*
* \return true if named variable list has been deleted, false otherwise
*/
LIB61850_API bool
MmsConnection_deleteNamedVariableList(MmsConnection self, MmsError* mmsError, const char* domainId, const char* listName);
LIB61850_API uint32_t
MmsConnection_deleteNamedVariableListAsync(MmsConnection self, MmsError* mmsError, const char* domainId, const char* listName,
MmsConnection_GenericServiceHandler handler, void* parameter);
/**
* \brief Delete an association specific named variable list at the server.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param listName the name of the named variable list
*
* \return true if named variable list has been deleted, false otherwise
*/
LIB61850_API bool
MmsConnection_deleteAssociationSpecificNamedVariableList(MmsConnection self, MmsError* mmsError,
const char* listName);
LIB61850_API uint32_t
MmsConnection_deleteAssociationSpecificNamedVariableListAsync(MmsConnection self, MmsError* mmsError, const char* listName,
MmsConnection_GenericServiceHandler handler, void* parameter);
/**
* \brief Create a new MmsVariableSpecification that can be used to define named variable lists.
*
* The created object can be deleted with free(). If the parameter strings were dynamically
* allocated the deallocation is in the responsibility of the user.
*
* \param domainId the MMS domain name of the variable
* \param itemId the name for the MMS variable
*
* \return reference to the new MmsVariableSpecfication object
*/
LIB61850_API MmsVariableAccessSpecification*
MmsVariableAccessSpecification_create(char* domainId, char* itemId);
/**
* \brief Create a new MmsVariableSpecification that can be used to define named variable lists.
*
* The created object can be deleted with free(). If the parameter strings were dynamically
* allocated the deallocation is in the responsibility of the user. This function should be
* used for named variable list entries that are array elements or components of array elements
* in the case when the array element is of complex (structured) type.
*
* \param domainId the MMS domain name of the variable
* \param itemId the name for the MMS variable
* \param index the array index to describe an array element
* \param componentName the name of the component of the array element. Should be set to NULL
* if the array element is of simple type or the whole array element is required.
*
* \return reference to the new MmsVariableSpecfication object
*/
LIB61850_API MmsVariableAccessSpecification*
MmsVariableAccessSpecification_createAlternateAccess(char* domainId, char* itemId, int32_t index,
char* componentName);
/**
* \brief Delete the MmsVariableAccessSpecification data structure
*
* \param self the instance to delete
*/
LIB61850_API void
MmsVariableAccessSpecification_destroy(MmsVariableAccessSpecification* self);
/**
* \brief Get the MMS local detail parameter (local detail means maximum MMS PDU size).
*
* This defaults to 65000 (or the value specified in the stack_config.h file.
* This function should not be called after a successful connection attempt.
*
* \param self MmsConnection instance to operate on
* \param localDetail the maximum size of the MMS PDU that will be accepted.
*/
LIB61850_API void
MmsConnection_setLocalDetail(MmsConnection self, int32_t localDetail);
LIB61850_API int32_t
MmsConnection_getLocalDetail(MmsConnection self);
/**
* \brief get the identity of the connected server
*
* This function will return the identity of the server if the server supports the MMS identify service.
* The server identity consists of a vendor name, model name, and a revision.
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
*/
LIB61850_API MmsServerIdentity*
MmsConnection_identify(MmsConnection self, MmsError* mmsError);
typedef void
(*MmsConnection_IdentifyHandler) (uint32_t invokeId, void* parameter, MmsError mmsError,
char* vendorName, char* modelName, char* revision);
LIB61850_API uint32_t
MmsConnection_identifyAsync(MmsConnection self, MmsError* mmsError,
MmsConnection_IdentifyHandler handler, void* parameter);
LIB61850_API void
MmsServerIdentity_destroy(MmsServerIdentity* self);
/**
* \brief get the VMD status of the connected server (is MMS status service)
*
* This function will return the status of the connected server by invoking the MMS status service.
* The services returns the logical and physical states of the server.
*
* \param[in] self MmsConnection instance to operate on
* \param[out] mmsError user provided variable to store error code
* \param[out] vmdLogicalStatus user provided variable to store the logical state of the VMD
* \param[out] vmdPhysicalStatus user provided variable to store the physical state of the VMD
* \param[in] extendedDerivation instructs the server to invoke self-diagnosis routines to determine server status
*/
LIB61850_API void
MmsConnection_getServerStatus(MmsConnection self, MmsError* mmsError, int* vmdLogicalStatus, int* vmdPhysicalStatus,
bool extendedDerivation);
typedef void
(*MmsConnection_GetServerStatusHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, int vmdLogicalStatus, int vmdPhysicalStatus);
LIB61850_API uint32_t
MmsConnection_getServerStatusAsync(MmsConnection self, MmsError* mmsError, bool extendedDerivation,
MmsConnection_GetServerStatusHandler handler, void* parameter);
/*******************************************************************************
* functions for MMS file services
*******************************************************************************/
typedef void
(*MmsFileDirectoryHandler) (void* parameter, char* filename, uint32_t size, uint64_t lastModified);
/**
* \brief Callback handler for the get file directory service
*
* Will be called once for each file directory entry and after the last entry with \ref filename = NULL to indicate
* with \ref moreFollows set to true when more data is available server side. In case of an error the callback will be called with
* \ref mmsError != MMS_ERROR_NONE and moreFollows = false.
*/
typedef void
(*MmsConnection_FileDirectoryHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, char* filename, uint32_t size, uint64_t lastModfified,
bool moreFollows);
typedef void
(*MmsFileReadHandler) (void* parameter, int32_t frsmId, uint8_t* buffer, uint32_t bytesReceived);
/**
* \brief Callback handler for the file read service
*
* Will be called for every received part of the file and when there is an error during reading the file.
*
* \param invokeId invokeID of the response
* \param parameter user provided context parameter
* \param mmsError error code
* \param frsmId ID of the file
* \param buffer buffer where the received bytes are stored
* \param bytesReceived number of bytes received with this response
* \param moreFollows more messages with parts of the file are following
*/
typedef void
(*MmsConnection_FileReadHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, int32_t frsmId, uint8_t* buffer, uint32_t byteReceived,
bool moreFollows);
/**
* \brief open a file for read
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
*
* \return the FRSM ID (file read state machine) handle of the opened file
*/
LIB61850_API int32_t
MmsConnection_fileOpen(MmsConnection self, MmsError* mmsError, const char* filename, uint32_t initialPosition,
uint32_t* fileSize, uint64_t* lastModified);
typedef void
(*MmsConnection_FileOpenHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, int32_t frsmId, uint32_t fileSize, uint64_t lastModified);
LIB61850_API uint32_t
MmsConnection_fileOpenAsync(MmsConnection self, MmsError* mmsError, const char* filename, uint32_t initialPosition, MmsConnection_FileOpenHandler handler,
void* parameter);
/**
* \brief read the next data block from the file
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param frsmId the FRSM ID (file read state machine) handle of the file
* \param handler callback that is invoked to deliver the received data
* \param handlerParameter user provided paramter that is passed to the callback function
*
* \return true if more data follows, false if last data has been received.
*/
LIB61850_API bool
MmsConnection_fileRead(MmsConnection self, MmsError* mmsError, int32_t frsmId, MmsFileReadHandler handler, void* handlerParameter);
LIB61850_API uint32_t
MmsConnection_fileReadAsync(MmsConnection self, MmsError* mmsError, int32_t frsmId, MmsConnection_FileReadHandler handler, void* parameter);
/**
* \brief close the file with the specified frsmID
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param frsmId id of the file to close
*/
LIB61850_API void
MmsConnection_fileClose(MmsConnection self, MmsError* mmsError, int32_t frsmId);
LIB61850_API uint32_t
MmsConnection_fileCloseAsync(MmsConnection self, MmsError* mmsError, uint32_t frsmId, MmsConnection_GenericServiceHandler handler, void* parameter);
/**
* \brief delete the file with the specified name
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param fileName name of the file to delete
*/
LIB61850_API void
MmsConnection_fileDelete(MmsConnection self, MmsError* mmsError, const char* fileName);
LIB61850_API uint32_t
MmsConnection_fileDeleteAsync(MmsConnection self, MmsError* mmsError, const char* fileName,
MmsConnection_GenericServiceHandler handler, void* parameter);
/**
* \brief rename the file with the specified name
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param currentFileName name of the file to rename
* \param newFileName new name of the file
*/
LIB61850_API void
MmsConnection_fileRename(MmsConnection self, MmsError* mmsError, const char* currentFileName, const char* newFileName);
LIB61850_API uint32_t
MmsConnection_fileRenameAsync(MmsConnection self, MmsError* mmsError, const char* currentFileName, const char* newFileName,
MmsConnection_GenericServiceHandler handler, void* parameter);
/**
* \brief Send an obtainFile request to the server (used to initiate file download to server)
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param sourceFile the name of the source file (client side name)
* \param destinationFile the name of the destination file (server side name)
*/
LIB61850_API void
MmsConnection_obtainFile(MmsConnection self, MmsError* mmsError, const char* sourceFile, const char* destinationFile);
LIB61850_API uint32_t
MmsConnection_obtainFileAsync(MmsConnection self, MmsError* mmsError, const char* sourceFile, const char* destinationFile,
MmsConnection_GenericServiceHandler handler, void* parameter);
/**
* \brief get the file directory of the server.
*
* This function will return the directory entries of the given server directory. For each directory entry
* the provided callback handler is called. If the
*
* \param self MmsConnection instance to operate on
* \param mmsError user provided variable to store error code
* \param fileSpecification the file specification of the directory to browse or NULL to browse the root directory
* \param continueAfter continuation point or NULL for the first request. The continuation point is the first entry
* after the provided continuation file name.
* \param handler user provided callback handler
* \param handlerParameter user provided parameter that is passed to the handler
*
* \return (more follows) true if more data is available
*/
LIB61850_API bool
MmsConnection_getFileDirectory(MmsConnection self, MmsError* mmsError, const char* fileSpecification, const char* continueAfter,
MmsFileDirectoryHandler handler, void* handlerParameter);
LIB61850_API uint32_t
MmsConnection_getFileDirectoryAsync(MmsConnection self, MmsError* mmsError, const char* fileSpecification, const char* continueAfter,
MmsConnection_FileDirectoryHandler handler, void* parameter);
typedef struct sMmsJournalEntry* MmsJournalEntry;
typedef struct sMmsJournalVariable* MmsJournalVariable;
struct sMmsJournalEntry {
MmsValue* entryID; /* type MMS_OCTET_STRING */
MmsValue* occurenceTime; /* type MMS_BINARY_TIME */
LinkedList journalVariables;
};
struct sMmsJournalVariable {
char* tag;
MmsValue* value;
};
/**
* \brief Destroy a single MmsJournalEntry instance.
*
* This function will destroy the whole MmsJournalEntry object including the attached list
* of MmsJournalVariable objects. It is intended to be used in conjunction with the
* LinkedList_destroyDeep function in order to free the result of MmsConnection_readJournalTimeRange
* or MmsConnection_readJournalStartAfter
*
* LinkedList_destroyDeep(journalEntries, (LinkedListValueDeleteFunction)
* MmsJournalEntry_destroy);
*
* \param self the MmsJournalEntry instance to destroy
*/
LIB61850_API void
MmsJournalEntry_destroy(MmsJournalEntry self);
LIB61850_API const MmsValue*
MmsJournalEntry_getEntryID(MmsJournalEntry self);
LIB61850_API const MmsValue*
MmsJournalEntry_getOccurenceTime(MmsJournalEntry self);
LIB61850_API const LinkedList /* <MmsJournalVariable> */
MmsJournalEntry_getJournalVariables(MmsJournalEntry self);
LIB61850_API const char*
MmsJournalVariable_getTag(MmsJournalVariable self);
LIB61850_API const MmsValue*
MmsJournalVariable_getValue(MmsJournalVariable self);
typedef void
(*MmsConnection_ReadJournalHandler) (uint32_t invokeId, void* parameter, MmsError mmsError, LinkedList /* <MmsJournalEntry> */ journalEntries, bool moreFollows);
LIB61850_API LinkedList /* <MmsJournalEntry> */
MmsConnection_readJournalTimeRange(MmsConnection self, MmsError* mmsError, const char* domainId, const char* itemId,
MmsValue* startTime, MmsValue* endTime, bool* moreFollows);
LIB61850_API uint32_t
MmsConnection_readJournalTimeRangeAsync(MmsConnection self, MmsError* mmsError, const char* domainId, const char* itemId,
MmsValue* startTime, MmsValue* endTime, MmsConnection_ReadJournalHandler handler, void* parameter);
LIB61850_API LinkedList /* <MmsJournalEntry> */
MmsConnection_readJournalStartAfter(MmsConnection self, MmsError* mmsError, const char* domainId, const char* itemId,
MmsValue* timeSpecification, MmsValue* entrySpecification, bool* moreFollows);
LIB61850_API uint32_t
MmsConnection_readJournalStartAfterAsync(MmsConnection self, MmsError* mmsError, const char* domainId, const char* itemId,
MmsValue* timeSpecification, MmsValue* entrySpecification, MmsConnection_ReadJournalHandler handler, void* parameter);
/**
* \brief Destroy (free) an MmsServerIdentity object
*
* \param self the object to destroy
*/
LIB61850_API void
MmsServerIdentity_destroy(MmsServerIdentity* self);
/**@}*/
#ifdef __cplusplus
}
#endif
#endif /* MMS_CLIENT_CONNECTION_H_ */