OV_DLLFNCEXPORT UA_StatusCode propertyValueStatementOPCUAInterface_interface_ovExpressionSemanticNodeToOPCUA(
void *handle, const UA_NodeId *nodeId, UA_Node** opcuaNode) {
UA_Node *newNode = NULL;
UA_StatusCode result = UA_STATUSCODE_GOOD;
OV_PATH path;
OV_INSTPTR_ov_object pobj = NULL;
OV_TICKET *pTicket = NULL;
OV_VTBLPTR_ov_object pVtblObj = NULL;
OV_ACCESS access;
UA_NodeClass nodeClass;
OV_ELEMENT element;
ov_memstack_lock();
result = opcua_nodeStoreFunctions_resolveNodeIdToPath(*nodeId, &path);
if(result != UA_STATUSCODE_GOOD){
ov_memstack_unlock();
return result;
}
element = path.elements[path.size-1];
ov_memstack_unlock();
result = opcua_nodeStoreFunctions_getVtblPointerAndCheckAccess(&(element), pTicket, &pobj, &pVtblObj, &access);
if(result != UA_STATUSCODE_GOOD){
return result;
}
nodeClass = UA_NODECLASS_VARIABLE;
newNode = (UA_Node*)UA_calloc(1, sizeof(UA_VariableNode));
// Basic Attribute
// BrowseName
UA_QualifiedName qName;
qName.name = UA_String_fromChars(pobj->v_identifier);
qName.namespaceIndex = nodeId->namespaceIndex;
newNode->browseName = qName;
// Description
// Description
OV_STRING tempString = pVtblObj->m_getcomment(pobj, &element);
UA_LocalizedText lText;
UA_LocalizedText_init(&lText);
lText.locale = UA_String_fromChars("en");
if(tempString){
lText.text = UA_String_fromChars(tempString);
} else {
lText.text = UA_String_fromChars("");
}
UA_LocalizedText_copy(&lText,&newNode->description);
UA_LocalizedText_deleteMembers(&lText);
// DisplayName
UA_LocalizedText displayName;
UA_LocalizedText_init(&displayName);
displayName.locale = UA_String_fromChars("en");
displayName.text = UA_String_fromChars(pobj->v_identifier);
UA_LocalizedText_copy(&displayName, &newNode->displayName);
UA_LocalizedText_deleteMembers(&displayName);
// NodeId
UA_NodeId_copy(nodeId, &newNode->nodeId);
// NodeClass
newNode->nodeClass = nodeClass;
// WriteMask
UA_UInt32 writeMask = 0;
if(element.elemtype != OV_ET_VARIABLE){
if(access & OV_AC_WRITE){
writeMask |= (1<<2); // BrowseName
writeMask |= (1<<6); // DisplayName
}
if(access & OV_AC_RENAMEABLE){
writeMask |= (1<<14); // NodeId
}
}
newNode->writeMask = writeMask;
// Variable specific attributes
// arrayDemensions
((UA_VariableNode*)newNode)->arrayDimensionsSize = 0;
((UA_VariableNode*)newNode)->arrayDimensions = NULL; // UA_Array_new(((UA_VariableNode*)newNode)->arrayDimensionsSize, &UA_TYPES[UA_TYPES_INT32]); /* scalar or one dimension */
// valuerank
((UA_VariableNode*)newNode)->valueRank = 1; /* one dimension */
// value
OV_ELEMENT tmpPart;
tmpPart.elemtype = OV_ET_NONE;
OV_ELEMENT tmpParrent;
tmpParrent.pobj = pobj;
tmpParrent.elemtype = OV_ET_OBJECT;
UA_ExpressionSemanticEnum tmpExpressionSemantic = 0;
do {
ov_element_getnextpart(&tmpParrent, &tmpPart, OV_ET_VARIABLE);
if (tmpPart.elemtype == OV_ET_NONE)
break;
if (ov_string_compare(tmpPart.elemunion.pvar->v_identifier, "ExpressionSemanticEnum") == OV_STRCMP_EQUAL){
tmpExpressionSemantic = *(UA_UInt32*)tmpPart.pvalue;
break;
}
} while(TRUE);
((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->type = &UA_PROPERTYVALUESTATEMENT[UA_PROPERTYVALUESTATEMENT_EXPRESSIONSEMANTICENUM];
((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data = UA_ExpressionSemanticEnum_new();
if (!((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data){
result = UA_STATUSCODE_BADOUTOFMEMORY;
return result;
}
((UA_VariableNode*)newNode)->value.data.value.hasValue = TRUE;
((UA_VariableNode*)newNode)->valueSource = UA_VALUESOURCE_DATA;
UA_ExpressionSemanticEnum_copy(&tmpExpressionSemantic, ((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data);
UA_ExpressionSemanticEnum_deleteMembers(&tmpExpressionSemantic);
// accessLevel
UA_Byte accessLevel = 0;
if(access & OV_AC_READ){
accessLevel |= (1<<0);
}
if(access & OV_AC_WRITE){
accessLevel |= (1<<1);
}
((UA_VariableNode*)newNode)->accessLevel = accessLevel;
// minimumSamplingInterval
((UA_VariableNode*)newNode)->minimumSamplingInterval = -1;
// historizing
((UA_VariableNode*)newNode)->historizing = UA_FALSE;
// dataType
((UA_VariableNode*)newNode)->dataType = UA_NODEID_NUMERIC(pinterface->v_modelnamespace.index, UA_NSPROPERTYVALUESTATEMENTID_EXPRESSIONSEMANTICENUM);
// References
addReference(newNode);
OV_UINT len = 0;
OV_STRING *plist = NULL;
OV_STRING tmpString = NULL;
copyOPCUAStringToOV(nodeId->identifier.string, &tmpString);
plist = ov_string_split(tmpString, "/", &len);
ov_string_setvalue(&tmpString, plist[0]);
for (OV_UINT i = 1; i < len-1; i++){
ov_string_append(&tmpString, "/");
ov_string_append(&tmpString, plist[i]);
}
ov_string_freelist(plist);
UA_NodeId tmpNodeId = UA_NODEID_NUMERIC(0, UA_NS0ID_HASTYPEDEFINITION);
for (size_t i = 0; i < newNode->referencesSize; i++){
if (UA_NodeId_equal(&newNode->references[i].referenceTypeId, &tmpNodeId)){
newNode->references[i].targetId = UA_EXPANDEDNODEID_NUMERIC(0, UA_NS0ID_PROPERTYTYPE);
continue;
}
OV_STRING tmpString2 = NULL;
copyOPCUAStringToOV(newNode->references[i].targetId.nodeId.identifier.string, &tmpString2);
if (ov_string_compare(tmpString, tmpString2) == OV_STRCMP_EQUAL &&
newNode->references[i].isInverse == UA_TRUE){
newNode->references[i].referenceTypeId = UA_NODEID_NUMERIC(0, UA_NS0ID_HASPROPERTY);
}
ov_string_setvalue(&tmpString2, NULL);
}
ov_string_setvalue(&tmpString, NULL);
UA_NodeId_deleteMembers(&tmpNodeId);
*opcuaNode = newNode;
return UA_STATUSCODE_GOOD;
}
static void processOPN(UA_Connection *connection, UA_Server *server, const UA_ByteString *msg,
size_t *pos) {
if(connection->state != UA_CONNECTION_ESTABLISHED) {
connection->close(connection);
return;
}
UA_UInt32 secureChannelId;
UA_StatusCode retval = UA_UInt32_decodeBinary(msg, pos, &secureChannelId);
UA_AsymmetricAlgorithmSecurityHeader asymHeader;
retval |= UA_AsymmetricAlgorithmSecurityHeader_decodeBinary(msg, pos, &asymHeader);
UA_SequenceHeader seqHeader;
retval |= UA_SequenceHeader_decodeBinary(msg, pos, &seqHeader);
UA_NodeId requestType;
retval |= UA_NodeId_decodeBinary(msg, pos, &requestType);
UA_OpenSecureChannelRequest r;
retval |= UA_OpenSecureChannelRequest_decodeBinary(msg, pos, &r);
if(retval != UA_STATUSCODE_GOOD || requestType.identifier.numeric != 446) {
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
UA_SequenceHeader_deleteMembers(&seqHeader);
UA_NodeId_deleteMembers(&requestType);
UA_OpenSecureChannelRequest_deleteMembers(&r);
connection->close(connection);
return;
}
UA_OpenSecureChannelResponse p;
UA_OpenSecureChannelResponse_init(&p);
Service_OpenSecureChannel(server, connection, &r, &p);
UA_OpenSecureChannelRequest_deleteMembers(&r);
UA_SecureChannel *channel = connection->channel;
if(!channel) {
connection->close(connection);
UA_OpenSecureChannelResponse_deleteMembers(&p);
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
return;
}
/* send the response with an asymmetric security header */
seqHeader.sequenceNumber = channel->sequenceNumber;
UA_SecureConversationMessageHeader respHeader;
respHeader.messageHeader.messageTypeAndFinal = UA_MESSAGETYPEANDFINAL_OPNF;
respHeader.messageHeader.messageSize = 0;
respHeader.secureChannelId = p.securityToken.channelId;
UA_NodeId responseType = UA_NODEID_NUMERIC(0, UA_NS0ID_OPENSECURECHANNELRESPONSE +
UA_ENCODINGOFFSET_BINARY);
respHeader.messageHeader.messageSize =
UA_SecureConversationMessageHeader_calcSizeBinary(&respHeader)
+ UA_AsymmetricAlgorithmSecurityHeader_calcSizeBinary(&asymHeader)
+ UA_SequenceHeader_calcSizeBinary(&seqHeader)
+ UA_NodeId_calcSizeBinary(&responseType)
+ UA_OpenSecureChannelResponse_calcSizeBinary(&p);
UA_ByteString resp_msg;
retval = connection->getBuffer(connection, &resp_msg, respHeader.messageHeader.messageSize);
if(retval != UA_STATUSCODE_GOOD) {
UA_OpenSecureChannelResponse_deleteMembers(&p);
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
return;
}
size_t tmpPos = 0;
UA_SecureConversationMessageHeader_encodeBinary(&respHeader, &resp_msg, &tmpPos);
UA_AsymmetricAlgorithmSecurityHeader_encodeBinary(&asymHeader, &resp_msg, &tmpPos); // just mirror back
UA_SequenceHeader_encodeBinary(&seqHeader, &resp_msg, &tmpPos); // just mirror back
UA_NodeId_encodeBinary(&responseType, &resp_msg, &tmpPos);
UA_OpenSecureChannelResponse_encodeBinary(&p, &resp_msg, &tmpPos);
UA_OpenSecureChannelResponse_deleteMembers(&p);
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
connection->write(connection, &resp_msg);
connection->releaseBuffer(connection, &resp_msg);
}
int main(int argc, char *argv[]) {
UA_Client *client = UA_Client_new(UA_ClientConfig_standard, Logger_Stdout_new());
UA_StatusCode retval = UA_Client_connect(client, ClientNetworkLayerTCP_connect,
"opc.tcp://localhost:16664");
if(retval != UA_STATUSCODE_GOOD) {
UA_Client_delete(client);
return retval;
}
// Browse some objects
printf("Browsing nodes in objects folder:\n");
UA_BrowseRequest bReq;
UA_BrowseRequest_init(&bReq);
bReq.requestedMaxReferencesPerNode = 0;
bReq.nodesToBrowse = UA_BrowseDescription_new();
bReq.nodesToBrowseSize = 1;
bReq.nodesToBrowse[0].nodeId = UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER); //browse objects folder
bReq.nodesToBrowse[0].resultMask = UA_BROWSERESULTMASK_ALL; //return everything
UA_BrowseResponse bResp = UA_Client_browse(client, &bReq);
printf("%-9s %-16s %-16s %-16s\n", "NAMESPACE", "NODEID", "BROWSE NAME", "DISPLAY NAME");
for (int i = 0; i < bResp.resultsSize; ++i) {
for (int j = 0; j < bResp.results[i].referencesSize; ++j) {
UA_ReferenceDescription *ref = &(bResp.results[i].references[j]);
if(ref->nodeId.nodeId.identifierType == UA_NODEIDTYPE_NUMERIC) {
printf("%-9d %-16d %-16.*s %-16.*s\n", ref->browseName.namespaceIndex,
ref->nodeId.nodeId.identifier.numeric, ref->browseName.name.length,
ref->browseName.name.data, ref->displayName.text.length, ref->displayName.text.data);
} else if(ref->nodeId.nodeId.identifierType == UA_NODEIDTYPE_STRING) {
printf("%-9d %-16.*s %-16.*s %-16.*s\n", ref->browseName.namespaceIndex,
ref->nodeId.nodeId.identifier.string.length, ref->nodeId.nodeId.identifier.string.data,
ref->browseName.name.length, ref->browseName.name.data, ref->displayName.text.length,
ref->displayName.text.data);
}
//TODO: distinguish further types
}
}
UA_BrowseRequest_deleteMembers(&bReq);
UA_BrowseResponse_deleteMembers(&bResp);
#ifdef ENABLE_SUBSCRIPTIONS
// Create a subscription with interval 0 (immediate)...
UA_Int32 subId = UA_Client_newSubscription(client, 0);
if (subId)
printf("Create subscription succeeded, id %u\n", subId);
// .. and monitor TheAnswer
UA_NodeId monitorThis;
monitorThis = UA_NODEID_STRING_ALLOC(1, "the.answer");
UA_UInt32 monId = UA_Client_monitorItemChanges(client, subId, monitorThis, UA_ATTRIBUTEID_VALUE, &handler_TheAnswerChanged );
if (monId)
printf("Monitoring 'the.answer', id %u\n", subId);
UA_NodeId_deleteMembers(&monitorThis);
// First Publish always generates data (current value) and call out handler.
UA_Client_doPublish(client);
// This should not generate anything
UA_Client_doPublish(client);
#endif
UA_Int32 value = 0;
// Read node's value
printf("\nReading the value of node (1, \"the.answer\"):\n");
UA_ReadRequest rReq;
UA_ReadRequest_init(&rReq);
rReq.nodesToRead = UA_ReadValueId_new();
rReq.nodesToReadSize = 1;
rReq.nodesToRead[0].nodeId = UA_NODEID_STRING_ALLOC(1, "the.answer"); /* assume this node exists */
rReq.nodesToRead[0].attributeId = UA_ATTRIBUTEID_VALUE;
UA_ReadResponse rResp = UA_Client_read(client, &rReq);
if(rResp.responseHeader.serviceResult == UA_STATUSCODE_GOOD &&
rResp.resultsSize > 0 && rResp.results[0].hasValue &&
UA_Variant_isScalar(&rResp.results[0].value) &&
rResp.results[0].value.type == &UA_TYPES[UA_TYPES_INT32]) {
value = *(UA_Int32*)rResp.results[0].value.data;
printf("the value is: %i\n", value);
}
UA_ReadRequest_deleteMembers(&rReq);
UA_ReadResponse_deleteMembers(&rResp);
value++;
// Write node's value
printf("\nWriting a value of node (1, \"the.answer\"):\n");
UA_WriteRequest wReq;
UA_WriteRequest_init(&wReq);
wReq.nodesToWrite = UA_WriteValue_new();
wReq.nodesToWriteSize = 1;
wReq.nodesToWrite[0].nodeId = UA_NODEID_STRING_ALLOC(1, "the.answer"); /* assume this node exists */
wReq.nodesToWrite[0].attributeId = UA_ATTRIBUTEID_VALUE;
wReq.nodesToWrite[0].value.hasValue = UA_TRUE;
wReq.nodesToWrite[0].value.value.type = &UA_TYPES[UA_TYPES_INT32];
wReq.nodesToWrite[0].value.value.storageType = UA_VARIANT_DATA_NODELETE; //do not free the integer on deletion
wReq.nodesToWrite[0].value.value.data = &value;
UA_WriteResponse wResp = UA_Client_write(client, &wReq);
if(wResp.responseHeader.serviceResult == UA_STATUSCODE_GOOD)
printf("the new value is: %i\n", value);
UA_WriteRequest_deleteMembers(&wReq);
UA_WriteResponse_deleteMembers(&wResp);
#ifdef ENABLE_SUBSCRIPTIONS
// Take another look at the.answer... this should call the handler.
UA_Client_doPublish(client);
// Delete our subscription (which also unmonitors all items)
if(!UA_Client_removeSubscription(client, subId))
printf("Subscription removed\n");
#endif
#ifdef ENABLE_METHODCALLS
/* Note: This example requires Namespace 0 Node 11489 (ServerType -> GetMonitoredItems)
FIXME: Provide a namespace 0 independant example on the server side
*/
UA_Variant input;
UA_String argString = UA_STRING("Hello Server");
UA_Variant_init(&input);
UA_Variant_setScalarCopy(&input, &argString, &UA_TYPES[UA_TYPES_STRING]);
UA_Int32 outputSize;
UA_Variant *output;
retval = UA_Client_CallServerMethod(client, UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(1, 62541), 1, &input, &outputSize, &output);
if(retval == UA_STATUSCODE_GOOD) {
printf("Method call was successfull, and %i returned values available.\n", outputSize);
UA_Array_delete(output, &UA_TYPES[UA_TYPES_VARIANT], outputSize);
} else {
printf("Method call was unsuccessfull, and %x returned values available.\n", retval);
}
UA_Variant_deleteMembers(&input);
#endif
#ifdef ENABLE_ADDNODES
/* Create a new object type node */
// New ReferenceType
UA_AddNodesResponse *adResp = UA_Client_createReferenceTypeNode(client,
UA_EXPANDEDNODEID_NUMERIC(1, 12133), // Assign this NodeId (will fail if client is called multiple times)
UA_QUALIFIEDNAME(0, "NewReference"),
UA_LOCALIZEDTEXT("en_US", "TheNewReference"),
UA_LOCALIZEDTEXT("en_US", "References something that might or might not exist."),
UA_EXPANDEDNODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES),
(UA_UInt32) 0, (UA_UInt32) 0,
UA_EXPANDEDNODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_LOCALIZEDTEXT("en_US", "IsNewlyReferencedBy"));
if (adResp->resultsSize > 0 && adResp->results[0].statusCode == UA_STATUSCODE_GOOD ) {
printf("Created 'NewReference' with numeric NodeID %u\n", adResp->results[0].addedNodeId.identifier.numeric );
}
UA_AddNodesResponse_deleteMembers(adResp);
free(adResp);
// New ObjectType
adResp = UA_Client_createObjectTypeNode(client,
UA_EXPANDEDNODEID_NUMERIC(1, 12134), // Assign this NodeId (will fail if client is called multiple times)
UA_QUALIFIEDNAME(0, "NewObjectType"),
UA_LOCALIZEDTEXT("en_US", "TheNewObjectType"),
UA_LOCALIZEDTEXT("en_US", "Put innovative description here."),
UA_EXPANDEDNODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES),
(UA_UInt32) 0, (UA_UInt32) 0,
UA_EXPANDEDNODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER));
if (adResp->resultsSize > 0 && adResp->results[0].statusCode == UA_STATUSCODE_GOOD ) {
printf("Created 'NewObjectType' with numeric NodeID %u\n", adResp->results[0].addedNodeId.identifier.numeric );
}
// New Object
adResp = UA_Client_createObjectNode(client,
UA_EXPANDEDNODEID_NUMERIC(1, 0), // Assign new/random NodeID
UA_QUALIFIEDNAME(0, "TheNewGreatNodeBrowseName"),
UA_LOCALIZEDTEXT("en_US", "TheNewGreatNode"),
UA_LOCALIZEDTEXT("de_DE", "Hier koennte Ihre Webung stehen!"),
UA_EXPANDEDNODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES),
(UA_UInt32) 0, (UA_UInt32) 0,
UA_EXPANDEDNODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER));
if (adResp->resultsSize > 0 && adResp->results[0].statusCode == UA_STATUSCODE_GOOD ) {
printf("Created 'NewObject' with numeric NodeID %u\n", adResp->results[0].addedNodeId.identifier.numeric );
}
UA_AddNodesResponse_deleteMembers(adResp);
free(adResp);
// New Integer Variable
UA_Variant *theValue = UA_Variant_new();
UA_Int32 *theValueDate = UA_Int32_new();
*theValueDate = 1234;
theValue->type = &UA_TYPES[UA_TYPES_INT32];
theValue->data = theValueDate;
adResp = UA_Client_createVariableNode(client,
UA_EXPANDEDNODEID_NUMERIC(1, 0), // Assign new/random NodeID
UA_QUALIFIEDNAME(0, "VariableNode"),
UA_LOCALIZEDTEXT("en_US", "TheNewVariableNode"),
UA_LOCALIZEDTEXT("en_US", "This integer is just amazing - it has digits and everything."),
UA_EXPANDEDNODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES),
(UA_UInt32) 0, (UA_UInt32) 0,
UA_EXPANDEDNODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_INT32),
theValue);
if (adResp->resultsSize > 0 && adResp->results[0].statusCode == UA_STATUSCODE_GOOD ) {
printf("Created 'NewVariable' with numeric NodeID %u\n", adResp->results[0].addedNodeId.identifier.numeric );
}
UA_AddNodesResponse_deleteMembers(adResp);
free(adResp);
free(theValue);
/* Done creating a new node*/
#endif
UA_Client_disconnect(client);
UA_Client_delete(client);
return UA_STATUSCODE_GOOD;
}
void
UA_Server_addExistingNode(UA_Server *server, UA_Session *session, UA_Node *node,
const UA_NodeId *parentNodeId, const UA_NodeId *referenceTypeId,
UA_AddNodesResult *result) {
if(node->nodeId.namespaceIndex >= server->namespacesSize) {
result->statusCode = UA_STATUSCODE_BADNODEIDINVALID;
return;
}
const UA_Node *parent = UA_NodeStore_get(server->nodestore, parentNodeId);
if(!parent) {
result->statusCode = UA_STATUSCODE_BADPARENTNODEIDINVALID;
return;
}
const UA_ReferenceTypeNode *referenceType =
(const UA_ReferenceTypeNode *)UA_NodeStore_get(server->nodestore, referenceTypeId);
if(!referenceType) {
result->statusCode = UA_STATUSCODE_BADREFERENCETYPEIDINVALID;
return;
}
if(referenceType->nodeClass != UA_NODECLASS_REFERENCETYPE) {
result->statusCode = UA_STATUSCODE_BADREFERENCETYPEIDINVALID;
return;
}
if(referenceType->isAbstract == UA_TRUE) {
result->statusCode = UA_STATUSCODE_BADREFERENCENOTALLOWED;
return;
}
// todo: test if the referencetype is hierarchical
// todo: namespace index is assumed to be valid
UA_MT_CONST UA_Node *managed = NULL;
UA_NodeId tempNodeid = node->nodeId;
tempNodeid.namespaceIndex = 0;
if(UA_NodeId_isNull(&tempNodeid)) {
if(UA_NodeStore_insert(server->nodestore, node, &managed) != UA_STATUSCODE_GOOD) {
result->statusCode = UA_STATUSCODE_BADOUTOFMEMORY;
return;
}
result->addedNodeId = managed->nodeId; // cannot fail as unique nodeids are numeric
} else {
if(UA_NodeId_copy(&node->nodeId, &result->addedNodeId) != UA_STATUSCODE_GOOD) {
result->statusCode = UA_STATUSCODE_BADOUTOFMEMORY;
return;
}
if(UA_NodeStore_insert(server->nodestore, node, &managed) != UA_STATUSCODE_GOOD) {
result->statusCode = UA_STATUSCODE_BADNODEIDEXISTS;
UA_NodeId_deleteMembers(&result->addedNodeId);
return;
}
}
/* Careful. The node is inserted. If the nodestore makes an expand, nodes change their address */
// reference back to the parent
UA_AddReferencesItem item;
UA_AddReferencesItem_init(&item);
item.sourceNodeId = managed->nodeId;
item.referenceTypeId = *referenceTypeId;
item.isForward = UA_FALSE;
item.targetNodeId.nodeId = *parentNodeId;
Service_AddReferences_single(server, session, &item);
// todo: error handling. remove new node from nodestore
}
static void processMSG(UA_Connection *connection, UA_Server *server, const UA_ByteString *msg, size_t *pos) {
/* Read in the securechannel */
UA_UInt32 secureChannelId;
UA_StatusCode retval = UA_UInt32_decodeBinary(msg, pos, &secureChannelId);
if(retval != UA_STATUSCODE_GOOD)
return;
/* the anonymous channel is used e.g. to allow getEndpoints without a channel */
UA_SecureChannel *clientChannel = connection->channel;
UA_SecureChannel anonymousChannel;
if(!clientChannel) {
UA_SecureChannel_init(&anonymousChannel);
anonymousChannel.connection = connection;
clientChannel = &anonymousChannel;
#ifdef EXTENSION_STATELESS
anonymousChannel.session = &anonymousSession;
#endif
}
/* Read the security header */
UA_UInt32 tokenId;
UA_SequenceHeader sequenceHeader;
retval = UA_UInt32_decodeBinary(msg, pos, &tokenId);
retval |= UA_SequenceHeader_decodeBinary(msg, pos, &sequenceHeader);
if(retval != UA_STATUSCODE_GOOD)
return;
/* Read the request type */
UA_NodeId requestType;
if(UA_NodeId_decodeBinary(msg, pos, &requestType) != UA_STATUSCODE_GOOD)
return;
if(requestType.identifierType != UA_NODEIDTYPE_NUMERIC) {
UA_NodeId_deleteMembers(&requestType);
return;
}
switch(requestType.identifier.numeric - UA_ENCODINGOFFSET_BINARY) {
case UA_NS0ID_GETENDPOINTSREQUEST: {
UA_GetEndpointsRequest p;
UA_GetEndpointsResponse r;
if(UA_GetEndpointsRequest_decodeBinary(msg, pos, &p))
return;
UA_GetEndpointsResponse_init(&r);
init_response_header(&p.requestHeader, &r.responseHeader);
Service_GetEndpoints(server, &p, &r);
UA_GetEndpointsRequest_deleteMembers(&p);
UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r,
&UA_TYPES[UA_TYPES_GETENDPOINTSRESPONSE]);
UA_GetEndpointsResponse_deleteMembers(&r);
break;
}
case UA_NS0ID_FINDSERVERSREQUEST: {
UA_FindServersRequest p;
UA_FindServersResponse r;
if(UA_FindServersRequest_decodeBinary(msg, pos, &p))
return;
UA_FindServersResponse_init(&r);
init_response_header(&p.requestHeader, &r.responseHeader);
Service_FindServers(server, &p, &r);
UA_FindServersRequest_deleteMembers(&p);
UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r,
&UA_TYPES[UA_TYPES_FINDSERVERSRESPONSE]);
UA_FindServersResponse_deleteMembers(&r);
break;
}
case UA_NS0ID_CREATESESSIONREQUEST: {
UA_CreateSessionRequest p;
UA_CreateSessionResponse r;
if(UA_CreateSessionRequest_decodeBinary(msg, pos, &p))
return;
UA_CreateSessionResponse_init(&r);
init_response_header(&p.requestHeader, &r.responseHeader);
Service_CreateSession(server, clientChannel, &p, &r);
UA_CreateSessionRequest_deleteMembers(&p);
UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r,
&UA_TYPES[UA_TYPES_CREATESESSIONRESPONSE]);
UA_CreateSessionResponse_deleteMembers(&r);
break;
}
case UA_NS0ID_ACTIVATESESSIONREQUEST: {
UA_ActivateSessionRequest p;
UA_ActivateSessionResponse r;
if(UA_ActivateSessionRequest_decodeBinary(msg, pos, &p))
return;
UA_ActivateSessionResponse_init(&r);
init_response_header(&p.requestHeader, &r.responseHeader);
Service_ActivateSession(server, clientChannel, &p, &r);
UA_ActivateSessionRequest_deleteMembers(&p);
UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r,
&UA_TYPES[UA_TYPES_ACTIVATESESSIONRESPONSE]);
UA_ActivateSessionResponse_deleteMembers(&r);
break;
}
case UA_NS0ID_CLOSESESSIONREQUEST:
INVOKE_SERVICE(CloseSession, UA_TYPES_CLOSESESSIONRESPONSE);
break;
case UA_NS0ID_READREQUEST:
INVOKE_SERVICE(Read, UA_TYPES_READRESPONSE);
break;
case UA_NS0ID_WRITEREQUEST:
INVOKE_SERVICE(Write, UA_TYPES_WRITERESPONSE);
break;
case UA_NS0ID_BROWSEREQUEST:
INVOKE_SERVICE(Browse, UA_TYPES_BROWSERESPONSE);
break;
case UA_NS0ID_BROWSENEXTREQUEST:
INVOKE_SERVICE(BrowseNext, UA_TYPES_BROWSENEXTRESPONSE);
break;
case UA_NS0ID_ADDREFERENCESREQUEST:
INVOKE_SERVICE(AddReferences, UA_TYPES_ADDREFERENCESRESPONSE);
break;
case UA_NS0ID_REGISTERNODESREQUEST:
INVOKE_SERVICE(RegisterNodes, UA_TYPES_REGISTERNODESRESPONSE);
break;
case UA_NS0ID_UNREGISTERNODESREQUEST:
INVOKE_SERVICE(UnregisterNodes, UA_TYPES_UNREGISTERNODESRESPONSE);
break;
case UA_NS0ID_TRANSLATEBROWSEPATHSTONODEIDSREQUEST:
INVOKE_SERVICE(TranslateBrowsePathsToNodeIds, UA_TYPES_TRANSLATEBROWSEPATHSTONODEIDSRESPONSE);
break;
default: {
if(requestType.namespaceIndex == 0 && requestType.identifier.numeric==787)
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_COMMUNICATION,
"Client requested a subscription that are not supported, the message will be skipped");
else
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_COMMUNICATION, "Unknown request: NodeId(ns=%d, i=%d)",
requestType.namespaceIndex, requestType.identifier.numeric);
UA_RequestHeader p;
UA_ResponseHeader r;
if(UA_RequestHeader_decodeBinary(msg, pos, &p) != UA_STATUSCODE_GOOD)
return;
UA_ResponseHeader_init(&r);
init_response_header(&p, &r);
r.serviceResult = UA_STATUSCODE_BADSERVICEUNSUPPORTED;
#ifdef EXTENSION_STATELESS
if(retval != UA_STATUSCODE_GOOD)
r.serviceResult = retval;
#endif
UA_RequestHeader_deleteMembers(&p);
UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId,
&r, &UA_TYPES[UA_TYPES_RESPONSEHEADER]);
break;
}
}
}
UaNodeId::~UaNodeId ()
{
UA_NodeId_deleteMembers( &m_impl );
}
UA_StatusCode UA_NodeStore_insert(UA_NodeStore *ns, UA_Node *node, const UA_Node **inserted) {
size_t nodesize;
/* Copy the node into the entry. Then reset the original node. It shall no longer be used. */
switch(node->nodeClass) {
case UA_NODECLASS_OBJECT:
nodesize = sizeof(UA_ObjectNode);
break;
case UA_NODECLASS_VARIABLE:
nodesize = sizeof(UA_VariableNode);
break;
case UA_NODECLASS_METHOD:
nodesize = sizeof(UA_MethodNode);
break;
case UA_NODECLASS_OBJECTTYPE:
nodesize = sizeof(UA_ObjectTypeNode);
break;
case UA_NODECLASS_VARIABLETYPE:
nodesize = sizeof(UA_VariableTypeNode);
break;
case UA_NODECLASS_REFERENCETYPE:
nodesize = sizeof(UA_ReferenceTypeNode);
break;
case UA_NODECLASS_DATATYPE:
nodesize = sizeof(UA_DataTypeNode);
break;
case UA_NODECLASS_VIEW:
nodesize = sizeof(UA_ViewNode);
break;
default:
return UA_STATUSCODE_BADINTERNALERROR;
}
struct nodeEntry *entry;
if(!(entry = UA_malloc(sizeof(struct nodeEntry) - sizeof(UA_Node) + nodesize)))
return UA_STATUSCODE_BADOUTOFMEMORY;
memcpy((void*)&entry->node, node, nodesize);
cds_lfht_node_init(&entry->htn);
entry->refcount = ALIVE_BIT;
if(inserted) // increase the counter before adding the node
entry->refcount++;
struct cds_lfht_node *result;
//FIXME: a bit dirty workaround of preserving namespace
//namespace index is assumed to be valid
UA_NodeId tempNodeid;
UA_NodeId_copy(&node->nodeId, &tempNodeid);
tempNodeid.namespaceIndex = 0;
if(!UA_NodeId_isNull(&tempNodeid)) {
hash_t h = hash(&node->nodeId);
rcu_read_lock();
result = cds_lfht_add_unique(ns->ht, h, compare, &entry->node.nodeId, &entry->htn);
rcu_read_unlock();
/* If the nodeid exists already */
if(result != &entry->htn) {
UA_free(entry);
return UA_STATUSCODE_BADNODEIDEXISTS;
}
} else {
/* create a unique nodeid */
((UA_Node *)&entry->node)->nodeId.identifierType = UA_NODEIDTYPE_NUMERIC;
if(((UA_Node *)&entry->node)->nodeId.namespaceIndex == 0) //original request for ns=0 should yield ns=1
((UA_Node *)&entry->node)->nodeId.namespaceIndex = 1;
if(((UA_Node *)&entry->node)->nodeClass==UA_NODECLASS_VARIABLE){ //set namespaceIndex in browseName in case id is generated
((UA_VariableNode*)&entry->node)->browseName.namespaceIndex=((UA_Node *)&entry->node)->nodeId.namespaceIndex;
}
unsigned long identifier;
long before, after;
rcu_read_lock();
cds_lfht_count_nodes(ns->ht, &before, &identifier, &after); // current amount of nodes stored
identifier++;
((UA_Node *)&entry->node)->nodeId.identifier.numeric = identifier;
while(UA_TRUE) {
hash_t nhash = hash(&entry->node.nodeId);
result = cds_lfht_add_unique(ns->ht, nhash, compare, &entry->node.nodeId, &entry->htn);
if(result == &entry->htn)
break;
((UA_Node *)&entry->node)->nodeId.identifier.numeric += (identifier * 2654435761);
}
rcu_read_unlock();
}
UA_NodeId_deleteMembers(&tempNodeid);
UA_free(node);
if(inserted)
*inserted = &entry->node;
return UA_STATUSCODE_GOOD;
}
static void processOPN(UA_Connection *connection, UA_Server *server, const UA_ByteString *msg, size_t *pos) {
if(connection->state != UA_CONNECTION_ESTABLISHED) {
connection->close(connection);
return;
}
UA_UInt32 secureChannelId;
UA_StatusCode retval = UA_UInt32_decodeBinary(msg, pos, &secureChannelId);
UA_AsymmetricAlgorithmSecurityHeader asymHeader;
retval |= UA_AsymmetricAlgorithmSecurityHeader_decodeBinary(msg, pos, &asymHeader);
UA_SequenceHeader seqHeader;
retval |= UA_SequenceHeader_decodeBinary(msg, pos, &seqHeader);
UA_NodeId requestType;
retval |= UA_NodeId_decodeBinary(msg, pos, &requestType);
UA_OpenSecureChannelRequest r;
retval |= UA_OpenSecureChannelRequest_decodeBinary(msg, pos, &r);
if(retval != UA_STATUSCODE_GOOD || requestType.identifier.numeric != 446) {
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
UA_SequenceHeader_deleteMembers(&seqHeader);
UA_NodeId_deleteMembers(&requestType);
UA_OpenSecureChannelRequest_deleteMembers(&r);
connection->close(connection);
return;
}
UA_OpenSecureChannelResponse p;
UA_OpenSecureChannelResponse_init(&p);
Service_OpenSecureChannel(server, connection, &r, &p);
UA_OpenSecureChannelRequest_deleteMembers(&r);
UA_SecureChannel *channel = connection->channel;
if(!channel) {
connection->close(connection);
UA_OpenSecureChannelResponse_deleteMembers(&p);
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
return;
}
/* send the response with an asymmetric security header */
#ifndef UA_MULTITHREADING
seqHeader.sequenceNumber = ++channel->sequenceNumber;
#else
seqHeader.sequenceNumber = uatomic_add_return(&channel->sequenceNumber, 1);
#endif
UA_SecureConversationMessageHeader respHeader;
respHeader.messageHeader.messageTypeAndFinal = UA_MESSAGETYPEANDFINAL_OPNF;
respHeader.messageHeader.messageSize = 0;
respHeader.secureChannelId = p.securityToken.channelId;
UA_NodeId responseType = UA_NODEID_NUMERIC(0, UA_NS0ID_OPENSECURECHANNELRESPONSE +
UA_ENCODINGOFFSET_BINARY);
UA_ByteString resp_msg;
retval = connection->getSendBuffer(connection, connection->remoteConf.recvBufferSize, &resp_msg);
if(retval != UA_STATUSCODE_GOOD) {
UA_OpenSecureChannelResponse_deleteMembers(&p);
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
return;
}
size_t tmpPos = 12; /* skip the secureconversationmessageheader for now */
retval |= UA_AsymmetricAlgorithmSecurityHeader_encodeBinary(&asymHeader, &resp_msg, &tmpPos); // just mirror back
retval |= UA_SequenceHeader_encodeBinary(&seqHeader, &resp_msg, &tmpPos); // just mirror back
retval |= UA_NodeId_encodeBinary(&responseType, &resp_msg, &tmpPos);
retval |= UA_OpenSecureChannelResponse_encodeBinary(&p, &resp_msg, &tmpPos);
if(retval != UA_STATUSCODE_GOOD) {
connection->releaseSendBuffer(connection, &resp_msg);
connection->close(connection);
} else {
respHeader.messageHeader.messageSize = tmpPos;
tmpPos = 0;
UA_SecureConversationMessageHeader_encodeBinary(&respHeader, &resp_msg, &tmpPos);
resp_msg.length = respHeader.messageHeader.messageSize;
connection->send(connection, &resp_msg);
}
UA_OpenSecureChannelResponse_deleteMembers(&p);
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
}
static void processMSG(UA_Connection *connection, UA_Server *server, const UA_ByteString *msg, size_t *pos) {
/* Read in the securechannel */
UA_UInt32 secureChannelId;
UA_StatusCode retval = UA_UInt32_decodeBinary(msg, pos, &secureChannelId);
if(retval != UA_STATUSCODE_GOOD)
return;
/* the anonymous channel is used e.g. to allow getEndpoints without a channel */
UA_SecureChannel *clientChannel = connection->channel;
UA_SecureChannel anonymousChannel;
if(!clientChannel) {
UA_SecureChannel_init(&anonymousChannel);
anonymousChannel.connection = connection;
clientChannel = &anonymousChannel;
}
/* Read the security header */
UA_UInt32 tokenId = 0;
UA_SequenceHeader sequenceHeader;
retval = UA_UInt32_decodeBinary(msg, pos, &tokenId);
retval |= UA_SequenceHeader_decodeBinary(msg, pos, &sequenceHeader);
#ifndef EXTENSION_STATELESS
if(retval != UA_STATUSCODE_GOOD || tokenId == 0) // 0 is invalid
return;
#else
if(retval != UA_STATUSCODE_GOOD)
return;
#endif
if(clientChannel != &anonymousChannel && tokenId != clientChannel->securityToken.tokenId) {
if(tokenId != clientChannel->nextSecurityToken.tokenId) {
/* close the securechannel but keep the connection open */
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_SECURECHANNEL,
"Request with a wrong security token. Closing the SecureChannel %i.",
clientChannel->securityToken.channelId);
Service_CloseSecureChannel(server, clientChannel->securityToken.channelId);
return;
}
UA_SecureChannel_revolveTokens(clientChannel);
}
/* Read the request type */
UA_NodeId requestType;
if(UA_NodeId_decodeBinary(msg, pos, &requestType) != UA_STATUSCODE_GOOD)
return;
if(requestType.identifierType != UA_NODEIDTYPE_NUMERIC) {
UA_NodeId_deleteMembers(&requestType);
return;
}
switch(requestType.identifier.numeric - UA_ENCODINGOFFSET_BINARY) {
case UA_NS0ID_GETENDPOINTSREQUEST: {
if(clientChannel == &anonymousChannel)
UA_LOG_DEBUG(server->logger, UA_LOGCATEGORY_NETWORK, "Processing GetEndpointsRequest on Connection %i",
connection->sockfd);
else
UA_LOG_DEBUG(server->logger, UA_LOGCATEGORY_SECURECHANNEL, "Processing GetEndpointsRequest on SecureChannel %i",
clientChannel->securityToken.channelId);
UA_GetEndpointsRequest p;
UA_GetEndpointsResponse r;
if(UA_GetEndpointsRequest_decodeBinary(msg, pos, &p))
return;
UA_GetEndpointsResponse_init(&r);
init_response_header(&p.requestHeader, &r.responseHeader);
Service_GetEndpoints(server, &p, &r);
UA_GetEndpointsRequest_deleteMembers(&p);
UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r,
&UA_TYPES[UA_TYPES_GETENDPOINTSRESPONSE]);
UA_GetEndpointsResponse_deleteMembers(&r);
break;
}
case UA_NS0ID_FINDSERVERSREQUEST: {
if(clientChannel == &anonymousChannel)
UA_LOG_DEBUG(server->logger, UA_LOGCATEGORY_NETWORK, "Processing FindServerRequest on Connection %i",
connection->sockfd);
else
UA_LOG_DEBUG(server->logger, UA_LOGCATEGORY_SECURECHANNEL, "Processing FindServerRequest on SecureChannel %i",
clientChannel->securityToken.channelId);
UA_FindServersRequest p;
UA_FindServersResponse r;
if(UA_FindServersRequest_decodeBinary(msg, pos, &p))
return;
UA_FindServersResponse_init(&r);
init_response_header(&p.requestHeader, &r.responseHeader);
Service_FindServers(server, &p, &r);
UA_FindServersRequest_deleteMembers(&p);
UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r,
&UA_TYPES[UA_TYPES_FINDSERVERSRESPONSE]);
UA_FindServersResponse_deleteMembers(&r);
break;
}
case UA_NS0ID_CREATESESSIONREQUEST: {
UA_CreateSessionRequest p;
UA_CreateSessionResponse r;
if(UA_CreateSessionRequest_decodeBinary(msg, pos, &p))
return;
UA_CreateSessionResponse_init(&r);
init_response_header(&p.requestHeader, &r.responseHeader);
Service_CreateSession(server, clientChannel, &p, &r);
UA_CreateSessionRequest_deleteMembers(&p);
UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r,
&UA_TYPES[UA_TYPES_CREATESESSIONRESPONSE]);
UA_CreateSessionResponse_deleteMembers(&r);
break;
}
case UA_NS0ID_ACTIVATESESSIONREQUEST: {
UA_ActivateSessionRequest p;
UA_ActivateSessionResponse r;
if(UA_ActivateSessionRequest_decodeBinary(msg, pos, &p))
return;
UA_ActivateSessionResponse_init(&r);
init_response_header(&p.requestHeader, &r.responseHeader);
Service_ActivateSession(server, clientChannel, &p, &r);
UA_ActivateSessionRequest_deleteMembers(&p);
UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r,
&UA_TYPES[UA_TYPES_ACTIVATESESSIONRESPONSE]);
UA_ActivateSessionResponse_deleteMembers(&r);
break;
}
case UA_NS0ID_CLOSESESSIONREQUEST:
INVOKE_SERVICE(CloseSession, UA_TYPES_CLOSESESSIONRESPONSE);
break;
case UA_NS0ID_READREQUEST:
INVOKE_SERVICE(Read, UA_TYPES_READRESPONSE);
break;
case UA_NS0ID_WRITEREQUEST:
INVOKE_SERVICE(Write, UA_TYPES_WRITERESPONSE);
break;
case UA_NS0ID_BROWSEREQUEST:
INVOKE_SERVICE(Browse, UA_TYPES_BROWSERESPONSE);
break;
case UA_NS0ID_BROWSENEXTREQUEST:
INVOKE_SERVICE(BrowseNext, UA_TYPES_BROWSENEXTRESPONSE);
break;
case UA_NS0ID_REGISTERNODESREQUEST:
INVOKE_SERVICE(RegisterNodes, UA_TYPES_REGISTERNODESRESPONSE);
break;
case UA_NS0ID_UNREGISTERNODESREQUEST:
INVOKE_SERVICE(UnregisterNodes, UA_TYPES_UNREGISTERNODESRESPONSE);
break;
case UA_NS0ID_TRANSLATEBROWSEPATHSTONODEIDSREQUEST:
INVOKE_SERVICE(TranslateBrowsePathsToNodeIds, UA_TYPES_TRANSLATEBROWSEPATHSTONODEIDSRESPONSE);
break;
#ifdef ENABLE_SUBSCRIPTIONS
case UA_NS0ID_CREATESUBSCRIPTIONREQUEST:
INVOKE_SERVICE(CreateSubscription, UA_TYPES_CREATESUBSCRIPTIONRESPONSE);
break;
case UA_NS0ID_PUBLISHREQUEST:
INVOKE_SERVICE(Publish, UA_TYPES_PUBLISHRESPONSE);
break;
case UA_NS0ID_MODIFYSUBSCRIPTIONREQUEST:
INVOKE_SERVICE(ModifySubscription, UA_TYPES_MODIFYSUBSCRIPTIONRESPONSE);
break;
case UA_NS0ID_DELETESUBSCRIPTIONSREQUEST:
INVOKE_SERVICE(DeleteSubscriptions, UA_TYPES_DELETESUBSCRIPTIONSRESPONSE);
break;
case UA_NS0ID_CREATEMONITOREDITEMSREQUEST:
INVOKE_SERVICE(CreateMonitoredItems, UA_TYPES_CREATEMONITOREDITEMSRESPONSE);
break;
case UA_NS0ID_DELETEMONITOREDITEMSREQUEST:
INVOKE_SERVICE(DeleteMonitoredItems, UA_TYPES_DELETEMONITOREDITEMSRESPONSE);
break;
#endif
#ifdef ENABLE_METHODCALLS
case UA_NS0ID_CALLREQUEST:
INVOKE_SERVICE(Call, UA_TYPES_CALLRESPONSE);
break;
#endif
#ifdef ENABLE_NODEMANAGEMENT
case UA_NS0ID_ADDNODESREQUEST:
INVOKE_SERVICE(AddNodes, UA_TYPES_ADDNODESRESPONSE);
break;
case UA_NS0ID_ADDREFERENCESREQUEST:
INVOKE_SERVICE(AddReferences, UA_TYPES_ADDREFERENCESRESPONSE);
break;
case UA_NS0ID_DELETENODESREQUEST:
INVOKE_SERVICE(DeleteNodes, UA_TYPES_DELETENODESRESPONSE);
break;
case UA_NS0ID_DELETEREFERENCESREQUEST:
INVOKE_SERVICE(DeleteReferences, UA_TYPES_DELETEREFERENCESRESPONSE);
break;
#endif
default: {
if(requestType.namespaceIndex == 0 && requestType.identifier.numeric==787)
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_NETWORK,
"Client requested a subscription that are not supported, the message will be skipped");
else
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_NETWORK, "Unknown request: NodeId(ns=%d, i=%d)",
requestType.namespaceIndex, requestType.identifier.numeric);
UA_RequestHeader p;
UA_ServiceFault r;
if(UA_RequestHeader_decodeBinary(msg, pos, &p) != UA_STATUSCODE_GOOD)
return;
UA_ServiceFault_init(&r);
init_response_header(&p, &r.responseHeader);
r.responseHeader.serviceResult = UA_STATUSCODE_BADSERVICEUNSUPPORTED;
UA_SecureChannel_sendBinaryMessage(clientChannel, sequenceHeader.requestId, &r,
&UA_TYPES[UA_TYPES_SERVICEFAULT]);
UA_RequestHeader_deleteMembers(&p);
UA_ServiceFault_deleteMembers(&r);
break;
}
}
}
static void
processMSG(UA_Connection *connection, UA_Server *server, const UA_ByteString *msg, size_t *pos) {
/* If we cannot decode these, don't respond */
UA_UInt32 secureChannelId = 0;
UA_UInt32 tokenId = 0;
UA_SequenceHeader sequenceHeader;
UA_NodeId requestTypeId;
UA_StatusCode retval = UA_UInt32_decodeBinary(msg, pos, &secureChannelId);
retval |= UA_UInt32_decodeBinary(msg, pos, &tokenId);
retval |= UA_SequenceHeader_decodeBinary(msg, pos, &sequenceHeader);
retval = UA_NodeId_decodeBinary(msg, pos, &requestTypeId);
if(retval != UA_STATUSCODE_GOOD)
return;
UA_SecureChannel *channel = connection->channel;
UA_SecureChannel anonymousChannel;
if(!channel) {
UA_SecureChannel_init(&anonymousChannel);
anonymousChannel.connection = connection;
channel = &anonymousChannel;
}
/* Test if the secure channel is ok */
if(secureChannelId != channel->securityToken.channelId)
return;
if(tokenId != channel->securityToken.tokenId) {
if(tokenId != channel->nextSecurityToken.tokenId) {
/* close the securechannel but keep the connection open */
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_SECURECHANNEL,
"Request with a wrong security token. Closing the SecureChannel %i.",
channel->securityToken.channelId);
Service_CloseSecureChannel(server, channel->securityToken.channelId);
return;
}
UA_SecureChannel_revolveTokens(channel);
}
/* Test if the service type nodeid has the right format */
if(requestTypeId.identifierType != UA_NODEIDTYPE_NUMERIC ||
requestTypeId.namespaceIndex != 0) {
UA_NodeId_deleteMembers(&requestTypeId);
sendError(channel, msg, *pos, sequenceHeader.requestId, UA_STATUSCODE_BADSERVICEUNSUPPORTED);
return;
}
/* Get the service pointers */
UA_Service service = NULL;
const UA_DataType *requestType = NULL;
const UA_DataType *responseType = NULL;
getServicePointers(requestTypeId.identifier.numeric, &requestType, &responseType, &service);
if(!service) {
/* The service is not supported */
if(requestTypeId.identifier.numeric==787)
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_SERVER,
"Client requested a subscription that are not supported, "
"the message will be skipped");
else
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_SERVER, "Unknown request: NodeId(ns=%d, i=%d)",
requestTypeId.namespaceIndex, requestTypeId.identifier.numeric);
sendError(channel, msg, *pos, sequenceHeader.requestId, UA_STATUSCODE_BADSERVICEUNSUPPORTED);
return;
}
/* Most services can only be called with a valid securechannel */
#ifndef EXTENSION_STATELESS
if(channel == &anonymousChannel &&
requestType->typeIndex > UA_TYPES_OPENSECURECHANNELREQUEST) {
sendError(channel, msg, *pos, sequenceHeader.requestId, UA_STATUSCODE_BADSECURECHANNELIDINVALID);
return;
}
#endif
/* Decode the request */
void *request = UA_alloca(requestType->memSize);
size_t oldpos = *pos;
retval = UA_decodeBinary(msg, pos, request, requestType);
if(retval != UA_STATUSCODE_GOOD) {
sendError(channel, msg, oldpos, sequenceHeader.requestId, retval);
return;
}
/* Find the matching session */
UA_Session *session =
UA_SecureChannel_getSession(channel, &((UA_RequestHeader*)request)->authenticationToken);
UA_Session anonymousSession;
if(!session) {
UA_Session_init(&anonymousSession);
anonymousSession.channel = channel;
anonymousSession.activated = UA_TRUE;
session = &anonymousSession;
}
/* Test if the session is valid */
if(!session->activated && requestType->typeIndex != UA_TYPES_ACTIVATESESSIONREQUEST) {
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_SERVER, "Client tries to call a service with a non-activated session");
sendError(channel, msg, *pos, sequenceHeader.requestId, UA_STATUSCODE_BADSESSIONNOTACTIVATED);
return;
}
#ifndef EXTENSION_STATELESS
if(session == &anonymousSession &&
requestType->typeIndex > UA_TYPES_ACTIVATESESSIONREQUEST) {
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_SERVER, "Client tries to call a service without a session");
sendError(channel, msg, *pos, sequenceHeader.requestId, UA_STATUSCODE_BADSESSIONIDINVALID);
return;
}
#endif
/* Call the service */
UA_Session_updateLifetime(session);
void *response = UA_alloca(responseType->memSize);
UA_init(response, responseType);
init_response_header(request, response);
service(server, session, request, response);
/* Send the response */
retval = UA_SecureChannel_sendBinaryMessage(channel, sequenceHeader.requestId,
response, responseType);
if(retval != UA_STATUSCODE_GOOD) {
/* e.g. UA_STATUSCODE_BADENCODINGLIMITSEXCEEDED */
sendError(channel, msg, oldpos, sequenceHeader.requestId, retval);
}
/* Clean up */
UA_deleteMembers(request, requestType);
UA_deleteMembers(response, responseType);
return;
}
