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/*
* iec61850_server.h
*
* IEC 61850 server API for libiec61850.
*
* Copyright 2013-2020 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 IED_SERVER_API_H_
#define IED_SERVER_API_H_
#ifdef __cplusplus
extern "C" {
#endif
/** \defgroup server_api_group IEC 61850/MMS server API
* @{
*/
#include "mms_server.h"
#include "iec61850_dynamic_model.h"
#include "iec61850_model.h"
#include "hal_filesystem.h"
#include "iec61850_config_file_parser.h"
/**
* \brief Configuration object to configure IEC 61850 stack features
*/
typedef struct sIedServerConfig* IedServerConfig;
struct sIedServerConfig
{
/** size of the report buffer associated with a buffered report control block */
int reportBufferSize;
/** size of the report buffer associated with an unbuffered report control block */
int reportBufferSizeURCBs;
/** Base path (directory where the file service serves files */
char* fileServiceBasepath;
/** when true (default) enable MMS file service */
bool enableFileService;
/** when true (default) enable dynamic data set services for MMS */
bool enableDynamicDataSetService;
/** the maximum number of allowed association specific data sets */
int maxAssociationSpecificDataSets;
/** the maximum number of allowed domain specific data sets */
int maxDomainSpecificDataSets;
/** maximum number of data set entries of dynamic data sets */
int maxDataSetEntries;
/** when true (default) enable log service */
bool enableLogService;
/** IEC 61850 edition (0 = edition 1, 1 = edition 2, 2 = edition 2.1, ...) */
uint8_t edition;
/** maximum number of MMS (TCP) connections */
int maxMmsConnections;
};
/**
* \brief Create a new configuration object
*
* \return a new configuration object with default configuration values
*/
LIB61850_API IedServerConfig
IedServerConfig_create(void);
/**
* \brief Destroy the configuration object
*/
LIB61850_API void
IedServerConfig_destroy(IedServerConfig self);
/**
* \brief Set the IEC 61850 standard edition to use (default is edition 2)
*
* \param edition IEC_61850_EDITION_1, IEC_61850_EDITION_2, or IEC_61850_EDITION_2_1
*/
LIB61850_API void
IedServerConfig_setEdition(IedServerConfig self, uint8_t edition);
/**
* \brief Get the configued IEC 61850 standard edition
*
* \returns IEC_61850_EDITION_1, IEC_61850_EDITION_2, or IEC_61850_EDITION_2_1
*/
LIB61850_API uint8_t
IedServerConfig_getEdition(IedServerConfig self);
/**
* \brief Set the report buffer size for buffered reporting
*
* \param reportBufferSize the buffer size for each buffered report control block
*/
LIB61850_API void
IedServerConfig_setReportBufferSize(IedServerConfig self, int reportBufferSize);
/**
* \brief Gets the report buffer size for buffered reporting
*
* \return the buffer size for each buffered report control block
*/
LIB61850_API int
IedServerConfig_getReportBufferSize(IedServerConfig self);
/**
* \brief Set the report buffer size for unbuffered reporting
*
* \param reportBufferSize the buffer size for each unbuffered report control block
*/
LIB61850_API void
IedServerConfig_setReportBufferSizeForURCBs(IedServerConfig self, int reportBufferSize);
/**
* \brief Gets the report buffer size for unbuffered reporting
*
* \return the buffer size for each unbuffered report control block
*/
LIB61850_API int
IedServerConfig_getReportBufferSizeForURCBs(IedServerConfig self);
/**
* \brief Set the maximum number of MMS (TCP) connections the server accepts
*
* NOTE: Parameter has to be smaller than CONFIG_MAXIMUM_TCP_CLIENT_CONNECTIONS if
* CONFIG_MAXIMUM_TCP_CLIENT_CONNECTIONS != -1
*
* \param maxConnection maximum number of TCP connections
*/
LIB61850_API void
IedServerConfig_setMaxMmsConnections(IedServerConfig self, int maxConnections);
/**
* \brief Get the maximum number of MMS (TCP) connections the server accepts
*
* \return maximum number of TCP connections
*/
LIB61850_API int
IedServerConfig_getMaxMmsConnections(IedServerConfig self);
/**
* \brief Set the basepath of the file services
*
* NOTE: the basepath specifies the local directory that is served by MMS file services
*
* \param basepath new file service base path
*/
LIB61850_API void
IedServerConfig_setFileServiceBasePath(IedServerConfig self, const char* basepath);
/**
* \brief Get the basepath of the file services
*/
LIB61850_API const char*
IedServerConfig_getFileServiceBasePath(IedServerConfig self);
/**
* \brief Enable/disable the MMS file service support
*
* \param[in] enable set true to enable the file services, otherwise false
*/
LIB61850_API void
IedServerConfig_enableFileService(IedServerConfig self, bool enable);
/**
* \brief Is the MMS file service enabled or disabled
*
* \return true if enabled, false otherwise
*/
LIB61850_API bool
IedServerConfig_isFileServiceEnabled(IedServerConfig self);
/**
* \brief Enable/disable the dynamic data set service for MMS
*
* \param[in] enable set true to enable dynamic data set service, otherwise false
*/
LIB61850_API void
IedServerConfig_enableDynamicDataSetService(IedServerConfig self, bool enable);
/**
* \brief Is the dynamic data set service for MMS enabled or disabled
*
* \return true if enabled, false otherwise
*/
LIB61850_API bool
IedServerConfig_isDynamicDataSetServiceEnabled(IedServerConfig self);
/**
* \brief Set the maximum allowed number of association specific (non-permanent) data sets
*
* NOTE: This specifies the maximum number of non-permanent data sets per connection. When
* the connection is closed these data sets are deleted automatically.
*
* \param maxDataSets maximum number of allowed data sets.
*/
LIB61850_API void
IedServerConfig_setMaxAssociationSpecificDataSets(IedServerConfig self, int maxDataSets);
/**
* \brief Get the maximum allowed number of association specific (non-permanent) data sets
*
* \return maximum number of allowed data sets.
*/
LIB61850_API int
IedServerConfig_getMaxAssociationSpecificDataSets(IedServerConfig self);
/**
* \brief Set the maximum allowed number of domain specific (permanent) data sets
*
* \param maxDataSets maximum number of allowed data sets.
*/
LIB61850_API void
IedServerConfig_setMaxDomainSpecificDataSets(IedServerConfig self, int maxDataSets);
/**
* \brief Get the maximum allowed number of domain specific (permanent) data sets
*
* \return maximum number of allowed data sets.
*/
LIB61850_API int
IedServerConfig_getMaxDomainSpecificDataSets(IedServerConfig self);
/**
* \brief Set the maximum number of entries in dynamic data sets
*
* NOTE: this comprises the base data set entries (can be simple or complex variables).
* When the client tries to create a data set with more member the request will be
* rejected and the data set will not be created.
*
* \param maxDataSetEntries the maximum number of entries allowed in a data set
*/
LIB61850_API void
IedServerConfig_setMaxDataSetEntries(IedServerConfig self, int maxDataSetEntries);
/**
* \brief Get the maximum number of entries in dynamic data sets
*
* \return the maximum number of entries allowed in a data sets
*/
LIB61850_API int
IedServerConfig_getMaxDatasSetEntries(IedServerConfig self);
/**
* \brief Enable/disable the log service for MMS
*
* \param[in] enable set true to enable dynamic data set service, otherwise false
*/
LIB61850_API void
IedServerConfig_enableLogService(IedServerConfig self, bool enable);
/**
* \brief Is the log service for MMS enabled or disabled
*
* \return true if enabled, false otherwise
*/
LIB61850_API bool
IedServerConfig_isLogServiceEnabled(IedServerConfig self);
/**
* An opaque handle for an IED server instance
*/
typedef struct sIedServer* IedServer;
/**
* An opaque handle for a client connection
*/
typedef struct sClientConnection* ClientConnection;
/**
* @defgroup IEC61850_SERVER_GENERAL General server setup and management functions
*
* @{
*/
/**
* \brief Create a new IedServer instance
*
* \param dataModel reference to the IedModel data structure to be used as IEC 61850 data model of the device
*
* \return the new IedServer instance
*/
LIB61850_API IedServer
IedServer_create(IedModel* dataModel);
/**
* \brief Create a new IedServer with TLS support
*
* \param dataModel reference to the IedModel data structure to be used as IEC 61850 data model of the device
* \param tlsConfiguration TLS configuration object, or NULL to not use TLS
*
* \return the new IedServer instance
*/
LIB61850_API IedServer
IedServer_createWithTlsSupport(IedModel* dataModel, TLSConfiguration tlsConfiguration);
/**
* \brief Create new new IedServer with extended configurations parameters
*
* \param dataModel reference to the IedModel data structure to be used as IEC 61850 data model of the device
* \param tlsConfiguration TLS configuration object, or NULL to not use TLS
* \param serverConfiguration IED server configuration object for advanced server configuration
*/
LIB61850_API IedServer
IedServer_createWithConfig(IedModel* dataModel, TLSConfiguration tlsConfiguration, IedServerConfig serverConfiguration);
/**
* \brief Destroy an IedServer instance and release all resources (memory, TCP sockets)
*
* \param self the instance of IedServer to operate on.
*/
LIB61850_API void
IedServer_destroy(IedServer self);
/**
* \brief Set the local IP address to listen on
*
* \param self the IedServer instance
* \param localIpAddress the local IP address as C string (an internal copy will be created)
*/
LIB61850_API void
IedServer_setLocalIpAddress(IedServer self, const char* localIpAddress);
/**
* \brief Set the identify for the MMS identify service
*
* CONFIG_IEC61850_SUPPORT_SERVER_IDENTITY required
*
* \param self the IedServer instance
* \param vendor the IED vendor name
* \param model the IED model name
* \param revision the IED revision/version number
*/
LIB61850_API void
IedServer_setServerIdentity(IedServer self, const char* vendor, const char* model, const char* revision);
/**
* \brief Set the virtual filestore basepath for the MMS 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 IedServer instance
* \param basepath the new virtual filestore basepath
*/
LIB61850_API void
IedServer_setFilestoreBasepath(IedServer self, const char* basepath);
/**
* \brief Start handling client connections
*
* \param self the instance of IedServer to operate on.
* \param tcpPort the TCP port the server is listening (-1 for using the default MMS or secure MMS port)
*/
LIB61850_API void
IedServer_start(IedServer self, int tcpPort);
/**
* \brief Stop handling client connections
*
* \param self the instance of IedServer to operate on.
*/
LIB61850_API void
IedServer_stop(IedServer self);
/**
* \brief Start handling client connection for non-threaded mode
*
* This function will instruct the TCP(IP stack to listen for incoming connections.
* In order to accept new connection the function IedServer_processIncomingData has to
* be called periodically.
*
* \param self the instance of IedServer to operate on.
* \param tcpPort the TCP port the server is listening (-1 for using the default MMS or secure MMS port)
*/
LIB61850_API void
IedServer_startThreadless(IedServer self, int tcpPort);
/**
* \brief Wait until a server connection is ready (with timeout)
*
* The function will wait until a server connection is ready (data available) or the
* timeout elapsed. This function is intended for the non-threaded mode. Its use is optional.
* It is equivalent of using select on sockets on Linux. If the return value is != 0 the
* IedServer_processIncomingData function should be called.
*
* \param self the IedServer instance
* \param timeoutMs the timeout to wait when no connection is ready
*
* \return 0 if no connection is ready; otherwise at least one connection is ready
*/
LIB61850_API int
IedServer_waitReady(IedServer self, unsigned int timeoutMs);
/**
* \brief handle incoming TCP data in non-threaded mode
*
* The function should be called periodically. If the function is called more often
* the response time for incoming messages will be faster. As an alternative the
* function may only be called if new TCP data is available.
*
* \param self the instance of IedServer to operate on.
*/
LIB61850_API void
IedServer_processIncomingData(IedServer self);
/**
* \brief perform periodic background tasks in non-threaded mode
*
* The function should be called periodically. If the function is called more often
* the more accurate are internal timeouts (e.g. for reports).
*
* \param self the instance of IedServer to operate on.
*/
LIB61850_API void
IedServer_performPeriodicTasks(IedServer self);
/**
* \brief Stop handling client connections for non-threaded mode
*
* \param self the instance of IedServer to operate on.
*/
LIB61850_API void
IedServer_stopThreadless(IedServer self);
/**
* \brief Return the data model of the server
*
* \param self the instance of IedServer to operate on.
*
* \return the IedModel* instance of the server
*/
LIB61850_API IedModel*
IedServer_getDataModel(IedServer self);
/**
* \brief Check if IedServer instance is listening for client connections
*
* \param self the instance of IedServer to operate on.
*
* \return true if IedServer instance is listening for client connections
*/
LIB61850_API bool
IedServer_isRunning(IedServer self);
/**
* \brief Get number of open MMS connections
*
* \param self the instance of IedServer to operate on
*
* \return the number of open and accepted MMS connections
*/
LIB61850_API int
IedServer_getNumberOfOpenConnections(IedServer self);
/**
* \brief Get access to the underlying MmsServer instance.
*
* This function should be handled with care. Since direct interaction with the
* MmsServer can interfere with the IedServer.
*
* \param self the instance of IedServer to operate on.
*
* \return MmsServer instance that is used by the IedServer
*/
LIB61850_API MmsServer
IedServer_getMmsServer(IedServer self);
/**
* \brief Enable all GOOSE control blocks.
*
* This will set the GoEna attribute of all configured GOOSE control blocks
* to true. If this method is not called at the startup or reset of the server
* then configured GOOSE control blocks keep inactive until a MMS client enables
* them by writing to the GOOSE control block.
*
* Note: This function has no effect when CONFIG_INCLUDE_GOOSE_SUPPORT is not set.
*
* \param self the instance of IedServer to operate on.
*/
LIB61850_API void
IedServer_enableGoosePublishing(IedServer self);
/**
* \brief Disable all GOOSE control blocks.
*
* This will set the GoEna attribute of all configured GOOSE control blocks
* to false. This will stop GOOSE transmission.
*
* Note: This function has no effect when CONFIG_INCLUDE_GOOSE_SUPPORT is not set.
*
* \param self the instance of IedServer to operate on.
*/
LIB61850_API void
IedServer_disableGoosePublishing(IedServer self);
/**
* \brief Set the Ethernet interface to be used by GOOSE publishing
*
* This function can be used to set the GOOSE interface ID. If not used or set to NULL the
* default interface ID from stack_config.h is used. Note the interface ID is operating system
* specific!
*
* Note: This function has no effect when CONFIG_INCLUDE_GOOSE_SUPPORT is not set.
*
* \param self the instance of IedServer to operate on.
* \param interfaceId the ID of the ethernet interface to be used for GOOSE publishing
*/
LIB61850_API void
IedServer_setGooseInterfaceId(IedServer self, const char* interfaceId);
/**
* \brief Set the Ethernet interface to be used by GOOSE publishing
*
* This function can be used to set the GOOSE interface ID forG all CBs (parameter ln = NULL) or for
* a specific GCB specified by the logical node instance and the GCB name.
*
* Note: This function has no effect when CONFIG_INCLUDE_GOOSE_SUPPORT is not set.
*
* \param self the instance of IedServer to operate on.
* \param ln the logical node that contains the GCB or NULL to enable/disable VLAN tagging for all GCBs
* \param gcbName the name (not object reference!) of the GCB
* \param interfaceId the ID of the ethernet interface to be used for GOOSE publishing
*/
LIB61850_API void
IedServer_setGooseInterfaceIdEx(IedServer self, LogicalNode* ln, const char* gcbName, const char* interfaceId);
/**
* \brief Enable/disable the use of VLAN tags in GOOSE messages
*
* This function can be used to enable/disable VLAN tagging for all GCBs (parameter ln = NULL) or for
* a specific GCB specified by the logical node instance and the GCB name.
*
* Note: This function has no effect when CONFIG_INCLUDE_GOOSE_SUPPORT is not set.
*
* \param self the instance of IedServer to operate on
* \param ln the logical node that contains the GCB or NULL to enable/disable VLAN tagging for all GCBs
* \param gcbName the name (not object reference!) of the GCB
* \param useVlanTag true to enable VLAN tagging, false otherwise
*/
LIB61850_API void
IedServer_useGooseVlanTag(IedServer self, LogicalNode* ln, const char* gcbName, bool useVlanTag);
/**@}*/
/**
* @defgroup IEC61850_SERVER_CONNECTION_HANDLING Connection handling and client authentication
*
* @{
*/
/**
* \brief set the authenticator for this server
*
* This function sets a user specified authenticator that is used to identify and authenticate clients that
* wants to connect. The authenticator is called on each connection attempt. Depending on the return value
* of the authenticator the client connection is accepted or refused. If no authenticator is set all client
* connections are accepted.
*
* \param self the instance of IedServer to operate on.
* \param authenticator the user provided authenticator callback
* \param authenticatorParameter user provided parameter that is passed to the authenticator
*/
LIB61850_API void
IedServer_setAuthenticator(IedServer self, AcseAuthenticator authenticator, void* authenticatorParameter);
/**
* \brief get the peer address of this connection as string
*
* Note: the returned string is only valid as long as the client connection exists. It is save to use
* the string inside of the connection indication callback function.
*
* \param self the ClientConnection instance
* \return peer address as C string.
*/
LIB61850_API const char*
ClientConnection_getPeerAddress(ClientConnection self);
/**
* \brief get the local address of this connection as string
*
* Note: the returned string is only valid as long as the client connection exists. It is save to use
* the string inside of the connection indication callback function.
*
* \param self the ClientConnection instance
* \return local address as C string.
*/
LIB61850_API const char*
ClientConnection_getLocalAddress(ClientConnection self);
/**
* \brief Get the security token associated with this connection
*
* The security token is an opaque handle that is associated with the connection. It is provided by the
* authenticator (if one is present). If no security token is used then this function returns NULL
*
* \param self the ClientConnection instance
*
* \return the security token or NULL
*/
LIB61850_API void*
ClientConnection_getSecurityToken(ClientConnection self);
/**
* \brief User provided callback function that is invoked whenever a new client connects or an existing connection is closed
* or detected as lost.
*
* \param self the instance of IedServer where the connection event occured.
* \param connection the new or closed client connect object
* \param connected true if a new connection is indicated, false if the connection has been closed or detected as lost.
* \param parameter a user provided parameter
*/
typedef void (*IedConnectionIndicationHandler) (IedServer self, ClientConnection connection, bool connected, void* parameter);
/**
* \brief set a callback function that will be called on connection events (open or close).
*
* \param self the instance of IedServer to operate on.
* \param handler the user provided callback function
* \param parameter a user provided parameter that is passed to the callback function.
*/
LIB61850_API void
IedServer_setConnectionIndicationHandler(IedServer self, IedConnectionIndicationHandler handler, void* parameter);
/**@}*/
/**
* @defgroup IEC61850_SERVER_DATA_MODEL_ACCESS Data model access and data update
*
* @{
*/
/**
* \brief Lock the data model for data update.
*
* This function should be called before the data model is updated.
* After updating the data model the function \ref IedServer_unlockDataModel should be called.
* Client requests will be postponed until the lock is removed.
*
* NOTE: This method should never be called inside of a library callback function. In the context of
* a library callback the data model is always already locked! Calling this function inside of a
* library callback may lead to a deadlock condition.
*
* \param self the instance of IedServer to operate on.
*/
LIB61850_API void
IedServer_lockDataModel(IedServer self);
/**
* \brief Unlock the data model and process pending client requests.
*
* NOTE: This method should never be called inside of a library callback function. In the context of
* a library callback the data model is always already locked!
*
* \param self the instance of IedServer to operate on.
*/
LIB61850_API void
IedServer_unlockDataModel(IedServer self);
/**
* \brief Get data attribute value
*
* Get the MmsValue object of an MMS Named Variable that is part of the device model.
* You should not manipulate the received object directly. Instead you should use
* the IedServer_updateValue method.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
*
* \return MmsValue object of the MMS Named Variable or NULL if the value does not exist.
*/
LIB61850_API MmsValue*
IedServer_getAttributeValue(IedServer self, DataAttribute* dataAttribute);
/**
* \brief Get data attribute value of a boolean data attribute
*
* Get the value of a data attribute of type MMS_BOOLEAN. If the data attribute
* is of a different type the returned value is undefined.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
*
* \return true or false
*/
LIB61850_API bool
IedServer_getBooleanAttributeValue(IedServer self, const DataAttribute* dataAttribute);
/**
* \brief Get data attribute value of an integer data attribute
*
* Get the value of a data attribute of type MMS_INTEGER. If the data attribute
* is of a different type the returned value is undefined.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
*
* \return the value as 32 bit integer
*/
LIB61850_API int32_t
IedServer_getInt32AttributeValue(IedServer self, const DataAttribute* dataAttribute);
/**
* \brief Get data attribute value of an integer data attribute
*
* Get the value of a data attribute of type MMS_INTEGER. If the data attribute
* is of a different type the returned value is undefined.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
*
* \return the value as 64 bit integer
*/
LIB61850_API int64_t
IedServer_getInt64AttributeValue(IedServer self, const DataAttribute* dataAttribute);
/**
* \brief Get data attribute value of an unsigned integer data attribute
*
* Get the value of a data attribute of type MMS_UNSIGNED. If the data attribute
* is of a different type the returned value is undefined.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
*
* \return the value as 32 bit unsigned integer
*/
LIB61850_API uint32_t
IedServer_getUInt32AttributeValue(IedServer self, const DataAttribute* dataAttribute);
/**
* \brief Get data attribute value of a floating point data attribute
*
* Get the value of a data attribute of type MMS_FLOAT. If the data attribute
* is of a different type the returned value is undefined.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
*
* \return the value as 32 bit float
*/
LIB61850_API float
IedServer_getFloatAttributeValue(IedServer self, const DataAttribute* dataAttribute);
/**
* \brief Get data attribute value of a UTC time data attribute
*
* Get the value of a data attribute of type MMS_UTC_TIME. If the data attribute
* is of a different type the returned value is undefined.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
*
* \return the value as 32 bit float
*/
LIB61850_API uint64_t
IedServer_getUTCTimeAttributeValue(IedServer self, const DataAttribute* dataAttribute);
/**
* \brief Get data attribute value of a bit string data attribute as integer value
*
* Get the value of a data attribute of type MMS_BIT_STRING. If the data attribute
* is of a different type the returned value is undefined.
* NOTE: The returned integer is determined by calculating the according the follwing
* formula: bit0^0 + bit1^1 + ... + bitn^n
* It is not specified in the IEC 61850 specifications how a bit string can be interpreted
* as an integer. Therefore this function has to be used with care.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
*
* \return the value a 32 bit integer.
*/
LIB61850_API uint32_t
IedServer_getBitStringAttributeValue(IedServer self, const DataAttribute* dataAttribute);
/**
* \brief Get data attribute value of a string type data attribute
*
* Get the value of a data attribute of type MMS_STRING or MMS_VISIBLE_STRING. If the data attribute
* is of a different type the returned value is undefined.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
*
* \return the value as a C string (null terminated string)
*/
LIB61850_API const char*
IedServer_getStringAttributeValue(IedServer self, const DataAttribute* dataAttribute);
/**
* \brief Get the MmsValue object related to a FunctionalConstrainedData object
*
* Get the MmsValue from the server cache that is associated with the Functional Constrained Data (FCD)
* object that is specified by the DataObject and the given Function Constraint (FC).
* Accessing the value will directly influence the values presented by the server. This kind of direct
* access will also bypass the report notification mechanism (i.e. changes will not cause a report!).
* Therefore this function should be used with care. It could be useful to access arrays of DataObjects.
*
* \param self the instance of IedServer to operate on.
* \param dataObject the data object to specify the FCD
* \param fc the FC to specify the FCD
*
* \return MmsValue object cached by the server.
*/
LIB61850_API MmsValue*
IedServer_getFunctionalConstrainedData(IedServer self, DataObject* dataObject, FunctionalConstraint fc);
/**
* \brief Update the MmsValue object of an IEC 61850 data attribute.
*
* The data attribute handle of type DataAttribute* are imported with static_model.h in the case when
* the static data model is used.
* You should use this function instead of directly operating on the MmsValue instance
* that is hold by the MMS server. Otherwise the IEC 61850 server is not aware of the
* changed value and will e.g. not generate a report.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value MmsValue object used to update the value cached by the server.
*/
LIB61850_API void
IedServer_updateAttributeValue(IedServer self, DataAttribute* dataAttribute, MmsValue* value);
/**
* \brief Update the value of an IEC 61850 float data attribute.
*
* Update the value of a float data attribute without handling with MmsValue instances.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value the new float value of the data attribute.
*/
LIB61850_API void
IedServer_updateFloatAttributeValue(IedServer self, DataAttribute* dataAttribute, float value);
/**
* \brief Update the value of an IEC 61850 integer32 data attribute.
*
* Update the value of a integer data attribute without handling with MmsValue instances.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value the new integer value of the data attribute.
*/
LIB61850_API void
IedServer_updateInt32AttributeValue(IedServer self, DataAttribute* dataAttribute, int32_t value);
/**
* \brief Update the value of an IEC 61850 Dbpos (double point/position) data attribute.
*
* Update the value of a integer data attribute without handling with MmsValue instances.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value the new Dbpos value of the data attribute.
*/
LIB61850_API void
IedServer_updateDbposValue(IedServer self, DataAttribute* dataAttribute, Dbpos value);
/**
* \brief Update the value of an IEC 61850 integer64 data attribute (like BCR actVal)
*
* Update the value of a integer data attribute without handling with MmsValue instances.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value the new 64 bit integer value of the data attribute.
*/
LIB61850_API void
IedServer_updateInt64AttributeValue(IedServer self, DataAttribute* dataAttribute, int64_t value);
/**
* \brief Update the value of an IEC 61850 unsigned integer data attribute.
*
* Update the value of a unsigned data attribute without handling with MmsValue instances.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value the new unsigned integer value of the data attribute.
*/
LIB61850_API void
IedServer_updateUnsignedAttributeValue(IedServer self, DataAttribute* dataAttribute, uint32_t value);
/**
* \brief Update the value of an IEC 61850 bit string data attribute.
*
* Update the value of a bit string data attribute without handling with MmsValue instances.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value the new bit string integer value of the data attribute.
*/
LIB61850_API void
IedServer_updateBitStringAttributeValue(IedServer self, DataAttribute* dataAttribute, uint32_t value);
/**
* \brief Update the value of an IEC 61850 boolean data attribute.
*
* Update the value of a boolean data attribute without handling with MmsValue instances.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value the new boolean value of the data attribute.
*/
LIB61850_API void
IedServer_updateBooleanAttributeValue(IedServer self, DataAttribute* dataAttribute, bool value);
/**
* \brief Update the value of an IEC 61850 visible string data attribute.
*
* Update the value of a visible string data attribute without handling MmsValue instances.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value the new visible string value of the data attribute.
*/
LIB61850_API void
IedServer_updateVisibleStringAttributeValue(IedServer self, DataAttribute* dataAttribute, char *value);
/**
* \brief Update the value of an IEC 61850 UTC time (timestamp) data attribute.
*
* Update the value of a UTC time data attribute without handling MmsValue instances.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value the new UTC time value of the data attribute as a ms timestamp
*/
LIB61850_API void
IedServer_updateUTCTimeAttributeValue(IedServer self, DataAttribute* dataAttribute, uint64_t value);
/**
* \brief Update the value of an IEC 61850 UTC time (timestamp) data attribute.
*
* Update the value of a UTC time data attribute without handling MmsValue instances.
*
* This function will also check if a trigger condition is satisfied in the case when a report or GOOSE
* control block is enabled.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param value the new UTC time value of the data attribute as a Timestamp
*/
LIB61850_API void
IedServer_updateTimestampAttributeValue(IedServer self, DataAttribute* dataAttribute, Timestamp* timestamp);
/**
* \brief Update a quality ("q") IEC 61850 data attribute.
*
* This is a specialized function to handle Quality data attributes. It can be used instead of the more
* generic IedServer_updateAttributeValue function.
*
* This function will also check if the quality change (qchg) trigger condition is satisfied and inform a
* report control block accordingly.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute handle
* \param quality the new quality value
*
*/
LIB61850_API void
IedServer_updateQuality(IedServer self, DataAttribute* dataAttribute, Quality quality);
/**@}*/
LIB61850_API void
IedServer_setLogStorage(IedServer self, const char* logRef, LogStorage logStorage);
/**
* @defgroup IEC61850_SERVER_SETTING_GROUPS Server side setting group handling
*
* @{
*/
/**
* \brief Change active setting group
*
* Inform the IedServer that the active setting group has changed due to an internal event.
* Before calling this function the user should update the relevant data attributes with FC=SG!
*
* \param self the instance of IedServer to operate on.
* \param sgcb the handle of the setting group control block of the setting group
* \param newActiveSg the number of the new active setting group
*/
LIB61850_API void
IedServer_changeActiveSettingGroup(IedServer self, SettingGroupControlBlock* sgcb, uint8_t newActiveSg);
/**
* \brief Get the active setting group number
*
* \param self the instance of IedServer to operate on.
* \param sgcb the handle of the setting group control block of the setting group
*
* \return the number of the active setting group
*/
LIB61850_API uint8_t
IedServer_getActiveSettingGroup(IedServer self, SettingGroupControlBlock* sgcb);
/**
* \brief Callback handler that is invoked when the active setting group is about to be changed by an
* external client.
*
* This function is called BEFORE the active setting group is changed. The user can reject to change the
* active setting group by returning false.
*
* \param user provided parameter
* \param sgcb the setting group control block of the setting group that is about to be changed
* \param newActSg the new active setting group
* \param connection the client connection that requests the change
*
* \return true if the change is accepted, false otherwise.
*
*/
typedef bool (*ActiveSettingGroupChangedHandler) (void* parameter, SettingGroupControlBlock* sgcb,
uint8_t newActSg, ClientConnection connection);
/**
* \brief Set the callback handler for the SetActSG event
*
* \param self the instance of IedServer to operate on.
* \param sgcb the handle of the setting group control block of the setting group.
* \param handler the user provided callback handler.
* \param parameter a user provided parameter that is passed to the control handler.
*/
LIB61850_API void
IedServer_setActiveSettingGroupChangedHandler(IedServer self, SettingGroupControlBlock* sgcb,
ActiveSettingGroupChangedHandler handler, void* parameter);
/**
* \brief Callback handler that is invoked when the edit setting group is about to be changed by an
* external client.
*
* In this function the user should update all SE data attributes
* associated with the given SettingGroupControlBlock.
* This function is called BEFORE the active setting group is changed. The user can reject to change the
* edit setting group by returning false. This can be used to implement RBAC.
*
* \param user provided parameter
* \param sgcb the setting group control block of the setting group that is about to be changed
* \param newEditSg the new edit setting group
* \param connection the client connection that requests the change
*
* \return true if the change is accepted, false otherwise.
*
*/
typedef bool (*EditSettingGroupChangedHandler) (void* parameter, SettingGroupControlBlock* sgcb,
uint8_t newEditSg, ClientConnection connection);
/**
* \brief Set the callback handler for the SetEditSG event
*
* \param self the instance of IedServer to operate on.
* \param sgcb the handle of the setting group control block of the setting group.
* \param handler the user provided callback handler.
* \param parameter a user provided parameter that is passed to the control handler.
*/
LIB61850_API void
IedServer_setEditSettingGroupChangedHandler(IedServer self, SettingGroupControlBlock* sgcb,
EditSettingGroupChangedHandler handler, void* parameter);
/**
* \brief Callback handler that is invoked when the edit setting group has been confirmed by an
* external client.
*
* \param user provided parameter
* \param sgcb the setting group control block of the setting group that is about to be changed
* \param editSg the edit setting group that has been confirmed
*
*/
typedef void (*EditSettingGroupConfirmationHandler) (void* parameter, SettingGroupControlBlock* sgcb,
uint8_t editSg);
/**
* \brief Set the callback handler for the COnfEditSG event
*
* \param self the instance of IedServer to operate on.
* \param sgcb the handle of the setting group control block of the setting group.
* \param handler the user provided callback handler.
* \param parameter a user provided parameter that is passed to the control handler.
*/
LIB61850_API void
IedServer_setEditSettingGroupConfirmationHandler(IedServer self, SettingGroupControlBlock* sgcb,
EditSettingGroupConfirmationHandler handler, void* parameter);
/**@}*/
/**
* @defgroup IEC61850_SERVER_CONTROL Server side control model handling
*
* @{
*/
/**
* \brief result code for ControlPerformCheckHandler
*/
typedef enum {
CONTROL_ACCEPTED = -1, /** check passed */
CONTROL_HARDWARE_FAULT = 1, /** check failed due to hardware fault */
CONTROL_TEMPORARILY_UNAVAILABLE = 2, /** control is already selected or operated */
CONTROL_OBJECT_ACCESS_DENIED = 3, /** check failed due to access control reason - access denied for this client or state */
CONTROL_OBJECT_UNDEFINED = 4, /** object not visible in this security context ??? */
CONTROL_VALUE_INVALID = 11 /** ctlVal out of range */
} CheckHandlerResult;
/**
* \brief result codes for control handler (ControlWaitForExecutionHandler and ControlHandler)
*/
typedef enum {
CONTROL_RESULT_FAILED = 0, /** check or operation failed */
CONTROL_RESULT_OK = 1, /** check or operation was successful */
CONTROL_RESULT_WAITING = 2 /** check or operation is in progress */
} ControlHandlerResult;
typedef void* ControlAction;
/**
* \brief Sets the add cause for the next command termination or application error message
*
* \param self the control action instance
* \param addCause the additional cause
*/
LIB61850_API void
ControlAction_setAddCause(ControlAction self, ControlAddCause addCause);
/**
* \brief Gets the originator category provided by the client
*
* \param self the control action instance
*
* \return the originator category
*/
LIB61850_API int
ControlAction_getOrCat(ControlAction self);
/**
* \brief Gets the originator identifier provided by the client
*
* \param self the control action instance
*
* \return the originator identifier
*/
LIB61850_API uint8_t*
ControlAction_getOrIdent(ControlAction self, int* orIdentSize);
/**
* \brief Get the ctlNum attribute send by the client
*
* \param self the control action instance
*
* \return the ctlNum value
*/
LIB61850_API int
ControlAction_getCtlNum(ControlAction self);
/**
* \brief Check if the control callback is called by a select or operate command
*
* \param self the control action instance
*
* \return true, when called by select, false for operate
*/
LIB61850_API bool
ControlAction_isSelect(ControlAction self);
/**
* \brief Gets the client object associated with the client that caused the control action
*
* \param self the control action instance
*
* \return client connection instance
*/
LIB61850_API ClientConnection
ControlAction_getClientConnection(ControlAction self);
/**
* \brief Gets the control object that is subject to this action
*
* \param self the control action instance
*
* \return the controllable data object instance
*/
LIB61850_API DataObject*
ControlAction_getControlObject(ControlAction self);
/**
* \brief Gets the time of the control, if it's a timeActivatedControl, returns 0, if it's not.
*
* \param self the control action instance
*
* \return the controllable data object instance
*/
LIB61850_API uint64_t
ControlAction_getControlTime(ControlAction self);
/**
* \brief Control model callback to perform the static tests (optional).
*
* NOTE: Signature changed in version 1.4!
*
* User provided callback function for the control model. It will be invoked after
* a control operation has been invoked by the client. This callback function is
* intended to perform the static tests. It should check if the interlock conditions
* are met if the interlockCheck parameter is true.
* This handler can also be check if the client has the required permissions to execute the
* operation and allow or deny the operation accordingly.
*
* \param action the control action parameter that provides access to additional context information
* \param parameter the parameter that was specified when setting the control handler
* \param ctlVal the control value of the control operation.
* \param test indicates if the operate request is a test operation
* \param interlockCheck the interlockCheck parameter provided by the client
*
* \return CONTROL_ACCEPTED if the static tests had been successful, one of the error codes otherwise
*/
typedef CheckHandlerResult (*ControlPerformCheckHandler) (ControlAction action, void* parameter, MmsValue* ctlVal, bool test, bool interlockCheck);
/**
* \brief Control model callback to perform the dynamic tests (optional).
*
* NOTE: Signature changed in version 1.4!
*
* User provided callback function for the control model. It will be invoked after
* a control operation has been invoked by the client. This callback function is
* intended to perform the dynamic tests. It should check if the synchronization conditions
* are met if the synchroCheck parameter is set to true.
* NOTE: Since version 0.7.9 this function is intended to return immediately. If the operation
* cannot be performed immediately the function SHOULD return CONTROL_RESULT_WAITING and the
* handler will be invoked again later.
*
* \param action the control action parameter that provides access to additional context information
* \param parameter the parameter that was specified when setting the control handler
* \param ctlVal the control value of the control operation.
* \param test indicates if the operate request is a test operation
* \param synchroCheck the synchroCheck parameter provided by the client
*
* \return CONTROL_RESULT_OK if the dynamic tests had been successful, CONTROL_RESULT_FAILED otherwise,
* CONTROL_RESULT_WAITING if the test is not yet finished
*/
typedef ControlHandlerResult (*ControlWaitForExecutionHandler) (ControlAction action, void* parameter, MmsValue* ctlVal, bool test, bool synchroCheck);
/**
* \brief Control model callback to actually perform the control operation.
*
* NOTE: Signature changed in version 1.4!
*
* User provided callback function for the control model. It will be invoked when
* a control operation happens (Oper). Here the user should perform the control operation
* (e.g. by setting an digital output or switching a relay).
* NOTE: Since version 0.7.9 this function is intended to return immediately. If the operation
* cannot be performed immediately the function SHOULD return CONTROL_RESULT_WAITING and the
* handler will be invoked again later.
*
* \param action the control action parameter that provides access to additional context information
* \param parameter the parameter that was specified when setting the control handler
* \param ctlVal the control value of the control operation.
* \param test indicates if the operate request is a test operation
*
* \return CONTROL_RESULT_OK if the control action bas been successful, CONTROL_RESULT_FAILED otherwise,
* CONTROL_RESULT_WAITING if the test is not yet finished
*/
typedef ControlHandlerResult (*ControlHandler) (ControlAction action, void* parameter, MmsValue* ctlVal, bool test);
/**
* \brief Set control handler for controllable data object
*
* This functions sets a user provided control handler for a data object. The data object
* has to be an instance of a controllable CDC (Common Data Class) like e.g. SPC, DPC or APC.
* The control handler is a callback function that will be called by the IEC server when a
* client invokes a control operation on the data object.
*
* \param self the instance of IedServer to operate on.
* \param node the controllable data object handle
* \param handler a callback function of type ControlHandler
* \param parameter a user provided parameter that is passed to the control handler.
*/
LIB61850_API void
IedServer_setControlHandler(IedServer self, DataObject* node, ControlHandler handler, void* parameter);
/**
* \brief Set a handler for a controllable data object to perform operative tests
*
* This functions sets a user provided handler that should perform the operative tests for a control operation.
* Setting this handler is not required. If not set the server assumes that the checks will always be successful.
* The handler has to return true upon a successful test of false if the test fails. In the later case the control
* operation will be aborted.
*
* \param self the instance of IedServer to operate on.
* \param node the controllable data object handle
* \param handler a callback function of type ControlHandler
* \param parameter a user provided parameter that is passed to the control handler.
*
*/
LIB61850_API void
IedServer_setPerformCheckHandler(IedServer self, DataObject* node, ControlPerformCheckHandler handler, void* parameter);
/**
* \brief Set a handler for a controllable data object to perform dynamic tests
*
* This functions sets a user provided handler that should perform the dynamic tests for a control operation.
* Setting this handler is not required. If not set the server assumes that the checks will always be successful.
* The handler has to return true upon a successful test of false if the test fails. In the later case the control
* operation will be aborted. If this handler is set than the server will start a new thread before calling the
* handler. This thread will also be used to execute the ControlHandler.
*
* \param self the instance of IedServer to operate on.
* \param node the controllable data object handle
* \param handler a callback function of type ControlHandler
* \param parameter a user provided parameter that is passed to the control handler.
*
*/
LIB61850_API void
IedServer_setWaitForExecutionHandler(IedServer self, DataObject* node, ControlWaitForExecutionHandler handler, void* parameter);
/**
* \brief Update the control model for the specified controllable data object with the given value and
* update "ctlModel" attribute value.
*
* NOTE: The corresponding control structures for the control model have to be present in the data model!
*
* \param self the instance of IedServer to operate on.
* \param ctlObject the controllable data object handle
* \param value the new control model value
*/
LIB61850_API void
IedServer_updateCtlModel(IedServer self, DataObject* ctlObject, ControlModel value);
/**@}*/
/**
* @defgroup IEC61850_SERVER_SVCB Server side sampled values control block (SVCB) handling
*
* @{
*/
/** Control block has been enabled by client */
#define IEC61850_SVCB_EVENT_ENABLE 1
/** Control block has been disabled by client */
#define IEC61850_SVCB_EVENT_DISABLE 0
/**
* \brief callback handler for SVCB events.
*
* \param svcb the related SVCB instance
* \param the event type
* \param user defined parameter
*/
typedef void (*SVCBEventHandler) (SVControlBlock* svcb, int event, void* parameter);
/**
* \brief Set a handler for SVCB control block events (enable/disable)
*
* \param self the instance of IedServer to operate on.
* \param svcb the SVCB control block instance
* \param handler the event handler to be used
* \param parameter a user provided parameter that is passed to the handler.
*/
LIB61850_API void
IedServer_setSVCBHandler(IedServer self, SVControlBlock* svcb, SVCBEventHandler handler, void* parameter);
/**@}*/
/**
* @defgroup IEC61850_SERVER_EXTERNAL_ACCESS Handle external access to data model and access control
*
* @{
*/
/***************************************************************************
* Access control
**************************************************************************/
/**
* \brief callback handler to intercept/control client write access to data attributes
*
* User provided callback function to intercept/control MMS client access to
* IEC 61850 data attributes. The application can install the same handler
* multiple times and distinguish data attributes by the dataAttribute parameter.
* This handler can be used to perform write access control do data attributes.
* One application can be to allow write access only from a specific client. Another
* application could be to check if the value is in the allowed range before the write
* is accepted.
*
* \param the data attribute that has been written by an MMS client.
* \param the value the client want to write to the data attribute
* \param connection the connection object of the client connection that invoked the write operation
* \param parameter the user provided parameter
*
* \return DATA_ACCESS_ERROR_SUCCESS if access is accepted, DATA_ACCESS_ERROR_OBJECT_ACCESS_DENIED if access is denied.
*/
typedef MmsDataAccessError
(*WriteAccessHandler) (DataAttribute* dataAttribute, MmsValue* value, ClientConnection connection, void* parameter);
/**
* \brief Install a WriteAccessHandler for a data attribute.
*
* This instructs the server to monitor write attempts by MMS clients to specific
* data attributes. If a client tries to write to the monitored data attribute the
* handler is invoked. The handler can decide if the write access will be allowed
* or denied. If a WriteAccessHandler is set for a specific data attribute - the
* default write access policy will not be performed for that data attribute.
*
* \param self the instance of IedServer to operate on.
* \param dataAttribute the data attribute to monitor
* \param handler the callback function that is invoked if a client tries to write to
* the monitored data attribute.
* \param parameter a user provided parameter that is passed to the WriteAccessHandler when called.
*/
LIB61850_API void
IedServer_handleWriteAccess(IedServer self, DataAttribute* dataAttribute,
WriteAccessHandler handler, void* parameter);
typedef enum {
ACCESS_POLICY_ALLOW,
ACCESS_POLICY_DENY
} AccessPolicy;
/**
* \brief Change the default write access policy for functional constraint data with a specific FC.
*
* \param self the instance of IedServer to operate on.
* \param fc the FC for which to change the default write access policy.
* \param policy the new policy to apply.
*
*/
LIB61850_API void
IedServer_setWriteAccessPolicy(IedServer self, FunctionalConstraint fc, AccessPolicy policy);
/**
* \brief callback handler to control client read access to data attributes
*
* User provided callback function to control MMS client read access to IEC 61850
* data objects. The application is to allow read access to data objects for specific clients only.
* It can be used to implement a role based access control (RBAC).
*
* \param ld the logical device the client wants to access
* \param ln the logical node the client wants to access
* \param dataObject the data object the client wants to access
* \param fc the functional constraint of the access
* \param connection the client connection that causes the access
* \param parameter the user provided parameter
*
* \return DATA_ACCESS_ERROR_SUCCESS if access is accepted, DATA_ACCESS_ERROR_OBJECT_ACCESS_DENIED if access is denied.
*/
typedef MmsDataAccessError
(*ReadAccessHandler) (LogicalDevice* ld, LogicalNode* ln, DataObject* dataObject, FunctionalConstraint fc, ClientConnection connection, void* parameter);
/**
* \brief Install the global read access handler
*
* The read access handler will be called for every read access before the server grants access to the client.
*
* \param self the instance of IedServer to operate on.
* \param handler the callback function that is invoked if a client tries to read a data object.
* \param parameter a user provided parameter that is passed to the callback function.
*/
LIB61850_API void
IedServer_setReadAccessHandler(IedServer self, ReadAccessHandler handler, void* parameter);
/**@}*/
/**@}*/
#ifdef __cplusplus
}
#endif
#endif /* IED_SERVER_API_H_ */