- IED server: fixed issue - read access to SGCB is not possible when read access handler is installed

examples/server_example_setting_groups/server_example_sg.c

@@ -95,6 +95,15 @@ editSgConfirmedHandler(void* parameter, SettingGroupControlBlock* sgcb,
     }
 }
 
+static MmsDataAccessError
+readAccessHandler(LogicalDevice* ld, LogicalNode* ln, DataObject* dataObject, FunctionalConstraint fc, ClientConnection connection, void* parameter)
+{
+    void* securityToken = ClientConnection_getSecurityToken(connection);
+
+    printf("Read access to %s/%s.%s\n", ld->name, ln->name, dataObject->name);
+
+    return DATA_ACCESS_ERROR_SUCCESS;
+}
 
 int 
 main(int argc, char** argv)
@@ -111,6 +120,8 @@ main(int argc, char** argv)
     IedServer_setEditSettingGroupChangedHandler(iedServer, sgcb, editSgChangedHandler, NULL);
     IedServer_setEditSettingGroupConfirmationHandler(iedServer, sgcb, editSgConfirmedHandler, NULL);
 
+    IedServer_setReadAccessHandler(iedServer, readAccessHandler, NULL);
+
     /* MMS server will be instructed to start listening to client connections. */
     IedServer_start(iedServer, 102);
 

src/iec61850/server/mms_mapping/mms_mapping.c

@@ -3097,6 +3097,11 @@ mmsReadAccessHandler (void* parameter, MmsDomain* domain, char* variableId, MmsS
                                 StringUtils_createStringFromBufferInBuffer(str, (uint8_t*) (doStart + 1), doEnd - doStart);
                             }
 
+                            if (fc == IEC61850_FC_SP) {
+                                if (!strcmp(str, "SGCB"))
+                                    return DATA_ACCESS_ERROR_SUCCESS;
+                            }
+
                             ModelNode* dobj = ModelNode_getChild((ModelNode*) ln, str);
 
                             if (dobj != NULL) {