static void setup_lds(void) {
// start LDS server
running_lds = UA_Boolean_new();
*running_lds = true;
config_lds = UA_ServerConfig_new_default();
config_lds->applicationDescription.applicationType = UA_APPLICATIONTYPE_DISCOVERYSERVER;
UA_String_deleteMembers(&config_lds->applicationDescription.applicationUri);
config_lds->applicationDescription.applicationUri =
UA_STRING_ALLOC("urn:open62541.test.local_discovery_server");
UA_LocalizedText_deleteMembers(&config_lds->applicationDescription.applicationName);
config_lds->applicationDescription.applicationName
= UA_LOCALIZEDTEXT_ALLOC("en", "LDS Server");
config_lds->mdnsServerName = UA_String_fromChars("LDS_test");
config_lds->serverCapabilitiesSize = 1;
UA_String *caps = UA_String_new();
*caps = UA_String_fromChars("LDS");
config_lds->serverCapabilities = caps;
config_lds->discoveryCleanupTimeout = registerTimeout;
server_lds = UA_Server_new(config_lds);
UA_Server_run_startup(server_lds);
pthread_create(&server_thread_lds, NULL, serverloop_lds, NULL);
// wait until LDS started
UA_sleep(1000);
sleep(1);
}
static UA_StatusCode
helloWorldMethod(const UA_NodeId objectId, const UA_Variant *input,
UA_Variant *output, void *handle) {
UA_String *inputStr = (UA_String*)input->data;
UA_String tmp = UA_STRING_ALLOC("Hello ");
if(inputStr->length > 0) {
tmp.data = realloc(tmp.data, tmp.length + inputStr->length);
memcpy(&tmp.data[tmp.length], inputStr->data, inputStr->length);
tmp.length += inputStr->length;
}
UA_Variant_setScalarCopy(output, &tmp, &UA_TYPES[UA_TYPES_STRING]);
UA_String_deleteMembers(&tmp);
UA_LOG_INFO(logger, UA_LOGCATEGORY_SERVER, "Hello World was called");
return UA_STATUSCODE_GOOD;
}
/* Example 3 */
static UA_StatusCode
fooBarMethod(void *handle, const UA_NodeId objectId,
size_t inputSize, const UA_Variant *input,
size_t outputSize, UA_Variant *output) {
/* the same as helloWorld, but returns foobar */
UA_String *inputStr = (UA_String*)input->data;
UA_String tmp = UA_STRING_ALLOC("FooBar! ");
if(inputStr->length > 0) {
tmp.data = realloc(tmp.data, tmp.length + inputStr->length);
memcpy(&tmp.data[tmp.length], inputStr->data, inputStr->length);
tmp.length += inputStr->length;
}
UA_Variant_setScalarCopy(output, &tmp, &UA_TYPES[UA_TYPES_STRING]);
UA_String_deleteMembers(&tmp);
UA_LOG_INFO(logger, UA_LOGCATEGORY_SERVER, "FooBar was called");
return UA_STATUSCODE_GOOD;
}
UA_StatusCode UA_Client_connect(UA_Client *client, UA_ConnectClientConnection connectFunc,
char *endpointUrl) {
if(client->state == UA_CLIENTSTATE_CONNECTED)
return UA_STATUSCODE_GOOD;
if(client->state == UA_CLIENTSTATE_ERRORED) {
UA_Client_reset(client);
}
UA_StatusCode retval = UA_STATUSCODE_GOOD;
client->connection = connectFunc(UA_ConnectionConfig_standard, endpointUrl, client->logger);
if(client->connection.state != UA_CONNECTION_OPENING) {
retval = UA_STATUSCODE_BADCONNECTIONCLOSED;
goto cleanup;
}
client->endpointUrl = UA_STRING_ALLOC(endpointUrl);
if(client->endpointUrl.length < 0) {
retval = UA_STATUSCODE_BADOUTOFMEMORY;
goto cleanup;
}
client->connection.localConf = client->config.localConnectionConfig;
retval = HelAckHandshake(client);
if(retval == UA_STATUSCODE_GOOD)
retval = SecureChannelHandshake(client, UA_FALSE);
if(retval == UA_STATUSCODE_GOOD)
retval = EndpointsHandshake(client);
if(retval == UA_STATUSCODE_GOOD)
retval = SessionHandshake(client);
if(retval == UA_STATUSCODE_GOOD)
retval = ActivateSession(client);
if(retval == UA_STATUSCODE_GOOD) {
client->connection.state = UA_CONNECTION_ESTABLISHED;
client->state = UA_CLIENTSTATE_CONNECTED;
} else {
goto cleanup;
}
return retval;
cleanup:
client->state = UA_CLIENTSTATE_ERRORED;
UA_Client_reset(client);
return retval;
}
static void
variables_basic(void) {
/* Int32 */
UA_Int32 i = 5;
UA_Int32 j;
UA_Int32_copy(&i, &j);
UA_Int32 *ip = UA_Int32_new();
UA_Int32_copy(&i, ip);
UA_Int32_delete(ip);
/* String */
UA_String s;
UA_String_init(&s); /* _init zeroes out the entire memory of the datatype */
char *test = "test";
s.length = strlen(test);
s.data = (UA_Byte*)test;
UA_String s2;
UA_String_copy(&s, &s2);
UA_String_deleteMembers(&s2); /* Copying heap-allocated the dynamic content */
UA_String s3 = UA_STRING("test2");
UA_String s4 = UA_STRING_ALLOC("test2"); /* Copies the content to the heap */
UA_Boolean eq = UA_String_equal(&s3, &s4);
UA_String_deleteMembers(&s4);
if(!eq)
return;
/* Structured Type */
UA_ReadRequest rr;
UA_init(&rr, &UA_TYPES[UA_TYPES_READREQUEST]); /* Generic method */
UA_ReadRequest_init(&rr); /* Shorthand for the previous line */
rr.requestHeader.timestamp = UA_DateTime_now(); /* Members of a structure */
rr.nodesToRead = (UA_ReadValueId *)UA_Array_new(5, &UA_TYPES[UA_TYPES_READVALUEID]);
rr.nodesToReadSize = 5; /* Array size needs to be made known */
UA_ReadRequest *rr2 = UA_ReadRequest_new();
UA_copy(&rr, rr2, &UA_TYPES[UA_TYPES_READREQUEST]);
UA_ReadRequest_deleteMembers(&rr);
UA_ReadRequest_delete(rr2);
}
static void configure_lds_server(UA_Server *pServer)
{
UA_ServerConfig *config_lds = UA_Server_getConfig(pServer);
UA_ServerConfig_setDefault(config_lds);
config_lds->applicationDescription.applicationType = UA_APPLICATIONTYPE_DISCOVERYSERVER;
UA_String_deleteMembers(&config_lds->applicationDescription.applicationUri);
config_lds->applicationDescription.applicationUri =
UA_STRING_ALLOC("urn:open62541.test.local_discovery_server");
UA_LocalizedText_deleteMembers(&config_lds->applicationDescription.applicationName);
config_lds->applicationDescription.applicationName
= UA_LOCALIZEDTEXT_ALLOC("en", "LDS Server");
config_lds->discovery.mdnsEnable = true;
#ifdef UA_ENABLE_DISCOVERY_MULTICAST
config_lds->discovery.mdns.mdnsServerName = UA_String_fromChars("LDS_test");
config_lds->discovery.mdns.serverCapabilitiesSize = 1;
UA_String *caps = UA_String_new();
*caps = UA_String_fromChars("LDS");
config_lds->discovery.mdns.serverCapabilities = caps;
#endif
config_lds->discovery.cleanupTimeout = registerTimeout;
}
OV_DLLFNCEXPORT UA_StatusCode servicesOPCUAInterface_interface_ovServiceOutputArgumentsNodeToOPCUA(
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_STRING tmpString = NULL;
OV_UINT len = 0;
OV_STRING *plist = NULL;
copyOPCUAStringToOV(nodeId->identifier.string, &tmpString);
plist = ov_string_split(tmpString, "||", &len);
ov_string_setvalue(&tmpString, NULL);
UA_NodeId tmpNodeId;
UA_NodeId_init(&tmpNodeId);
tmpNodeId.namespaceIndex = nodeId->namespaceIndex;
tmpNodeId.identifierType = nodeId->identifierType;
tmpNodeId.identifier.string = UA_String_fromChars(plist[0]);
ov_string_freelist(plist);
ov_memstack_lock();
result = opcua_nodeStoreFunctions_resolveNodeIdToPath(tmpNodeId, &path);
UA_NodeId_deleteMembers(&tmpNodeId);
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("OutputArguments");
qName.namespaceIndex = 0; //pinterface->v_interfacenamespace.index;
newNode->browseName = qName;
// 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("OutputArguments");
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
// value
OV_ELEMENT tmpPart;
tmpPart.elemtype = OV_ET_NONE;
tmpPart.pobj = NULL;
OV_ELEMENT tmpParrent;
tmpParrent.pobj = pobj;
tmpParrent.elemtype = OV_ET_OBJECT;
OV_UINT sizeOutput = 0;
do {
ov_element_getnextpart(&tmpParrent, &tmpPart, OV_ET_VARIABLE);
if (tmpPart.elemtype == OV_ET_NONE)
break;
if (tmpPart.elemunion.pvar->v_flags == 16384){ // OutputFlag is set
sizeOutput++;
continue;
}
} while(TRUE);
// arrayDemensions
if (sizeOutput > 1){
((UA_VariableNode*)newNode)->arrayDimensionsSize = 1;
UA_UInt32 *pOutputDimension = UA_UInt32_new();
*pOutputDimension = sizeOutput;
((UA_VariableNode*)newNode)->arrayDimensions = pOutputDimension; //UA_Array_new(((UA_VariableNode*)newNode)->arrayDimensionsSize, &UA_TYPES[UA_TYPES_INT32]); /* scalar or one dimension */
// valuerank
((UA_VariableNode*)newNode)->valueRank = 1; /* one dimension */
}else{
((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
((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->type = &UA_TYPES[UA_TYPES_ARGUMENT];
((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->arrayLength = sizeOutput;
if (sizeOutput > 1){
((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data = UA_Array_new(sizeOutput, &UA_TYPES[UA_TYPES_ARGUMENT]);
}else{
((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data = UA_Argument_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;
tmpPart.elemtype = OV_ET_NONE;
tmpPart.pobj = NULL;
OV_UINT count = 0;
do {
ov_element_getnextpart(&tmpParrent, &tmpPart, OV_ET_VARIABLE);
if (tmpPart.elemtype == OV_ET_NONE)
break;
if (tmpPart.elemunion.pvar->v_flags == 16384){ // OutputFlag is set
UA_Argument_init(&((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count]);
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].description = UA_LOCALIZEDTEXT_ALLOC("en_US","");
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].name = UA_STRING_ALLOC(tmpPart.elemunion.pvar->v_identifier);
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = -1;
switch(tmpPart.elemunion.pvar->v_vartype){
case OV_VT_BOOL:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_BOOLEAN].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = -1;
break;
case OV_VT_INT:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_INT32].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = -1;
break;
case OV_VT_UINT:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_UINT32].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = -1;
break;
case OV_VT_SINGLE:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_FLOAT].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = -1;
break;
case OV_VT_DOUBLE:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_DOUBLE].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = -1;
break;
case OV_VT_ANY:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_VARIANT].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = 1;
break;
case OV_VT_STRING:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_STRING].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = -1;
break;
case OV_VT_BOOL_VEC:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_BOOLEAN].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = 1;
break;
case OV_VT_INT_VEC:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_INT32].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = 1;
break;
case OV_VT_UINT_VEC:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_UINT32].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = 1;
break;
case OV_VT_SINGLE_VEC:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_FLOAT].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = 1;
break;
case OV_VT_DOUBLE_VEC:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_DOUBLE].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = 1;
break;
case OV_VT_STRING_VEC:
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].dataType = UA_TYPES[UA_TYPES_STRING].typeId;
((UA_Argument*)((UA_Variant*)&((UA_VariableNode*)newNode)->value.data.value.value)->data)[count].valueRank = 1;
break;
default:
break;
}
count++;
if (count == sizeOutput){
break;
}else{
continue;
}
}
} while(TRUE);
ov_string_setvalue(&tmpString, NULL);
// 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(0, 0);
// References have to do manual because it is an virtual node
size_t size_references = 0;
size_references = size_references + 2;// For Parent&TypeNode
newNode->references = UA_calloc(size_references, sizeof(UA_ReferenceNode));
if (!newNode->references){
result = ov_resultToUaStatusCode(OV_ERR_HEAPOUTOFMEMORY);
UA_free(newNode);
return result;
}
newNode->referencesSize = size_references;
// ParentNode
newNode->references[0].referenceTypeId = UA_NODEID_NUMERIC(0, UA_NS0ID_HASPROPERTY);
newNode->references[0].isInverse = UA_TRUE;
len = 0;
plist = NULL;
tmpString = NULL;
copyOPCUAStringToOV(nodeId->identifier.string, &tmpString);
plist = ov_string_split(tmpString, "||", &len);
newNode->references[0].targetId = UA_EXPANDEDNODEID_STRING_ALLOC(pinterface->v_interfacenamespace.index, plist[0]);
ov_string_freelist(plist);
ov_string_setvalue(&tmpString, NULL);
// TypeNode
newNode->references[1].referenceTypeId = UA_NODEID_NUMERIC(0, UA_NS0ID_HASTYPEDEFINITION);
newNode->references[1].isInverse = UA_FALSE;
newNode->references[1].targetId = UA_EXPANDEDNODEID_NUMERIC(0, UA_NS0ID_PROPERTYTYPE);
*opcuaNode = newNode;
return UA_STATUSCODE_GOOD;
}
static UA_StatusCode SecureChannelHandshake(UA_Client *client, UA_Boolean renew) {
/* Check if sc is still valid */
if(renew && client->scExpiresAt - UA_DateTime_now() > client->config.timeToRenewSecureChannel * 10000)
return UA_STATUSCODE_GOOD;
UA_SecureConversationMessageHeader messageHeader;
messageHeader.messageHeader.messageTypeAndFinal = UA_MESSAGETYPEANDFINAL_OPNF;
messageHeader.secureChannelId = 0;
UA_SequenceHeader seqHeader;
seqHeader.sequenceNumber = ++client->channel.sequenceNumber;
seqHeader.requestId = ++client->requestId;
UA_AsymmetricAlgorithmSecurityHeader asymHeader;
UA_AsymmetricAlgorithmSecurityHeader_init(&asymHeader);
asymHeader.securityPolicyUri = UA_STRING_ALLOC("http://opcfoundation.org/UA/SecurityPolicy#None");
/* id of opensecurechannelrequest */
UA_NodeId requestType = UA_NODEID_NUMERIC(0, UA_NS0ID_OPENSECURECHANNELREQUEST + UA_ENCODINGOFFSET_BINARY);
UA_OpenSecureChannelRequest opnSecRq;
UA_OpenSecureChannelRequest_init(&opnSecRq);
opnSecRq.requestHeader.timestamp = UA_DateTime_now();
opnSecRq.requestHeader.authenticationToken = client->authenticationToken;
opnSecRq.requestedLifetime = client->config.secureChannelLifeTime;
if(renew) {
opnSecRq.requestType = UA_SECURITYTOKENREQUESTTYPE_RENEW;
UA_LOG_DEBUG(client->logger, UA_LOGCATEGORY_SECURECHANNEL, "Requesting to renew the SecureChannel");
} else {
opnSecRq.requestType = UA_SECURITYTOKENREQUESTTYPE_ISSUE;
UA_ByteString_init(&client->channel.clientNonce);
UA_ByteString_copy(&client->channel.clientNonce, &opnSecRq.clientNonce);
opnSecRq.securityMode = UA_MESSAGESECURITYMODE_NONE;
UA_LOG_DEBUG(client->logger, UA_LOGCATEGORY_SECURECHANNEL, "Requesting to open a SecureChannel");
}
UA_ByteString message;
UA_Connection *c = &client->connection;
UA_StatusCode retval = c->getSendBuffer(c, c->remoteConf.recvBufferSize, &message);
if(retval != UA_STATUSCODE_GOOD) {
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
UA_OpenSecureChannelRequest_deleteMembers(&opnSecRq);
return retval;
}
size_t offset = 12;
retval = UA_AsymmetricAlgorithmSecurityHeader_encodeBinary(&asymHeader, &message, &offset);
retval |= UA_SequenceHeader_encodeBinary(&seqHeader, &message, &offset);
retval |= UA_NodeId_encodeBinary(&requestType, &message, &offset);
retval |= UA_OpenSecureChannelRequest_encodeBinary(&opnSecRq, &message, &offset);
messageHeader.messageHeader.messageSize = offset;
offset = 0;
retval |= UA_SecureConversationMessageHeader_encodeBinary(&messageHeader, &message, &offset);
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
UA_OpenSecureChannelRequest_deleteMembers(&opnSecRq);
if(retval != UA_STATUSCODE_GOOD) {
client->connection.releaseSendBuffer(&client->connection, &message);
return retval;
}
message.length = messageHeader.messageHeader.messageSize;
retval = client->connection.send(&client->connection, &message);
if(retval != UA_STATUSCODE_GOOD)
return retval;
UA_ByteString reply;
UA_ByteString_init(&reply);
do {
retval = client->connection.recv(&client->connection, &reply, client->config.timeout);
if(retval != UA_STATUSCODE_GOOD) {
UA_LOG_DEBUG(client->logger, UA_LOGCATEGORY_SECURECHANNEL,
"Receiving OpenSecureChannelResponse failed");
return retval;
}
} while(!reply.data);
offset = 0;
UA_SecureConversationMessageHeader_decodeBinary(&reply, &offset, &messageHeader);
UA_AsymmetricAlgorithmSecurityHeader_decodeBinary(&reply, &offset, &asymHeader);
UA_SequenceHeader_decodeBinary(&reply, &offset, &seqHeader);
UA_NodeId_decodeBinary(&reply, &offset, &requestType);
UA_NodeId expectedRequest = UA_NODEID_NUMERIC(0, UA_NS0ID_OPENSECURECHANNELRESPONSE +
UA_ENCODINGOFFSET_BINARY);
if(!UA_NodeId_equal(&requestType, &expectedRequest)) {
UA_ByteString_deleteMembers(&reply);
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
UA_NodeId_deleteMembers(&requestType);
UA_LOG_DEBUG(client->logger, UA_LOGCATEGORY_CLIENT,
"Reply answers the wrong request. Expected OpenSecureChannelResponse.");
return UA_STATUSCODE_BADINTERNALERROR;
}
UA_OpenSecureChannelResponse response;
UA_OpenSecureChannelResponse_init(&response);
retval = UA_OpenSecureChannelResponse_decodeBinary(&reply, &offset, &response);
if(retval != UA_STATUSCODE_GOOD) {
UA_LOG_DEBUG(client->logger, UA_LOGCATEGORY_SECURECHANNEL,
"Decoding OpenSecureChannelResponse failed");
UA_ByteString_deleteMembers(&reply);
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
UA_OpenSecureChannelResponse_init(&response);
response.responseHeader.serviceResult = retval;
return retval;
}
client->scExpiresAt = UA_DateTime_now() + response.securityToken.revisedLifetime * 10000;
UA_ByteString_deleteMembers(&reply);
retval = response.responseHeader.serviceResult;
if(retval != UA_STATUSCODE_GOOD)
UA_LOG_DEBUG(client->logger, UA_LOGCATEGORY_SECURECHANNEL,
"SecureChannel could not be opened / renewed");
else if(!renew) {
UA_ChannelSecurityToken_copy(&response.securityToken, &client->channel.securityToken);
/* if the handshake is repeated, replace the old nonce */
UA_ByteString_deleteMembers(&client->channel.serverNonce);
UA_ByteString_copy(&response.serverNonce, &client->channel.serverNonce);
UA_LOG_DEBUG(client->logger, UA_LOGCATEGORY_SECURECHANNEL, "SecureChannel opened");
} else
UA_LOG_DEBUG(client->logger, UA_LOGCATEGORY_SECURECHANNEL, "SecureChannel renewed");
UA_OpenSecureChannelResponse_deleteMembers(&response);
UA_AsymmetricAlgorithmSecurityHeader_deleteMembers(&asymHeader);
return retval;
}
UA_StatusCode
UA_Client_connect_async(UA_Client *client, const char *endpointUrl,
UA_ClientAsyncServiceCallback callback,
void *userdata) {
UA_LOG_TRACE(&client->config.logger, UA_LOGCATEGORY_CLIENT,
"Client internal async");
if(client->state >= UA_CLIENTSTATE_WAITING_FOR_ACK)
return UA_STATUSCODE_GOOD;
UA_ChannelSecurityToken_init(&client->channel.securityToken);
client->channel.state = UA_SECURECHANNELSTATE_FRESH;
client->endpointsHandshake = true;
client->channel.sendSequenceNumber = 0;
client->requestId = 0;
UA_String_deleteMembers(&client->endpointUrl);
client->endpointUrl = UA_STRING_ALLOC(endpointUrl);
UA_StatusCode retval = UA_STATUSCODE_GOOD;
client->connection =
client->config.initConnectionFunc(client->config.localConnectionConfig,
client->endpointUrl,
client->config.timeout, &client->config.logger);
if(client->connection.state != UA_CONNECTION_OPENING) {
UA_LOG_TRACE(&client->config.logger, UA_LOGCATEGORY_CLIENT,
"Could not init async connection");
retval = UA_STATUSCODE_BADCONNECTIONCLOSED;
goto cleanup;
}
/* Set the channel SecurityMode if not done so far */
if(client->channel.securityMode == UA_MESSAGESECURITYMODE_INVALID)
client->channel.securityMode = UA_MESSAGESECURITYMODE_NONE;
/* Set the channel SecurityPolicy if not done so far */
if(!client->channel.securityPolicy) {
UA_SecurityPolicy *sp =
getSecurityPolicy(client, UA_STRING("http://opcfoundation.org/UA/SecurityPolicy#None"));
if(!sp) {
retval = UA_STATUSCODE_BADINTERNALERROR;
goto cleanup;
}
UA_ByteString remoteCertificate = UA_BYTESTRING_NULL;
retval = UA_SecureChannel_setSecurityPolicy(&client->channel, sp,
&remoteCertificate);
if(retval != UA_STATUSCODE_GOOD)
goto cleanup;
}
client->asyncConnectCall.callback = callback;
client->asyncConnectCall.userdata = userdata;
if(!client->connection.connectCallbackID) {
UA_LOG_TRACE(&client->config.logger, UA_LOGCATEGORY_CLIENT,
"Adding async connection callback");
retval = UA_Client_addRepeatedCallback(
client, client->config.pollConnectionFunc, &client->connection, 100.0,
&client->connection.connectCallbackID);
if(retval != UA_STATUSCODE_GOOD)
goto cleanup;
}
retval = UA_SecureChannel_generateLocalNonce(&client->channel);
if(retval != UA_STATUSCODE_GOOD)
goto cleanup;
/* Delete async service. TODO: Move this from connect to the disconnect/cleanup phase */
UA_Client_AsyncService_removeAll(client, UA_STATUSCODE_BADSHUTDOWN);
#ifdef UA_ENABLE_SUBSCRIPTIONS
client->currentlyOutStandingPublishRequests = 0;
#endif
UA_NodeId_deleteMembers(&client->authenticationToken);
/* Generate new local and remote key */
retval = UA_SecureChannel_generateNewKeys(&client->channel);
if(retval != UA_STATUSCODE_GOOD)
goto cleanup;
return retval;
cleanup:
UA_LOG_TRACE(&client->config.logger, UA_LOGCATEGORY_CLIENT,
"Failure during async connect");
UA_Client_disconnect(client);
return retval;
}