void Service_CreateSession(UA_Server *server, UA_SecureChannel *channel,
const UA_CreateSessionRequest *request,
UA_CreateSessionResponse *response) {
if(channel == NULL) {
response->responseHeader.serviceResult = UA_STATUSCODE_BADINTERNALERROR;
return;
}
if(channel->connection == NULL) {
response->responseHeader.serviceResult = UA_STATUSCODE_BADINTERNALERROR;
return;
}
UA_LOG_DEBUG_CHANNEL(server->config.logger, channel, "Trying to create session");
if(channel->securityMode == UA_MESSAGESECURITYMODE_SIGN ||
channel->securityMode == UA_MESSAGESECURITYMODE_SIGNANDENCRYPT) {
if(!UA_ByteString_equal(&request->clientCertificate,
&channel->remoteCertificate)) {
response->responseHeader.serviceResult = UA_STATUSCODE_BADCERTIFICATEINVALID;
return;
}
}
if(channel->securityToken.channelId == 0) {
response->responseHeader.serviceResult =
UA_STATUSCODE_BADSECURECHANNELIDINVALID;
return;
}
if(!UA_ByteString_equal(&channel->securityPolicy->policyUri,
&UA_SECURITY_POLICY_NONE_URI) &&
request->clientNonce.length < 32) {
response->responseHeader.serviceResult = UA_STATUSCODE_BADNONCEINVALID;
return;
}
////////////////////// TODO: Compare application URI with certificate uri (decode certificate)
/* Allocate the response */
response->serverEndpoints = (UA_EndpointDescription*)
UA_Array_new(server->config.endpointsSize,
&UA_TYPES[UA_TYPES_ENDPOINTDESCRIPTION]);
if(!response->serverEndpoints) {
response->responseHeader.serviceResult = UA_STATUSCODE_BADOUTOFMEMORY;
return;
}
response->serverEndpointsSize = server->config.endpointsSize;
/* Copy the server's endpointdescriptions into the response */
for(size_t i = 0; i < server->config.endpointsSize; ++i)
response->responseHeader.serviceResult |=
UA_EndpointDescription_copy(&server->config.endpoints[0].endpointDescription,
&response->serverEndpoints[i]);
if(response->responseHeader.serviceResult != UA_STATUSCODE_GOOD)
return;
/* Mirror back the endpointUrl */
for(size_t i = 0; i < response->serverEndpointsSize; ++i) {
UA_String_deleteMembers(&response->serverEndpoints[i].endpointUrl);
UA_String_copy(&request->endpointUrl,
&response->serverEndpoints[i].endpointUrl);
}
UA_Session *newSession;
response->responseHeader.serviceResult =
UA_SessionManager_createSession(&server->sessionManager,
channel, request, &newSession);
if(response->responseHeader.serviceResult != UA_STATUSCODE_GOOD) {
UA_LOG_DEBUG_CHANNEL(server->config.logger, channel,
"Processing CreateSessionRequest failed");
return;
}
/* Fill the session with more information */
newSession->maxResponseMessageSize = request->maxResponseMessageSize;
newSession->maxRequestMessageSize =
channel->connection->localConf.maxMessageSize;
response->responseHeader.serviceResult |=
UA_ApplicationDescription_copy(&request->clientDescription,
&newSession->clientDescription);
/* Prepare the response */
response->sessionId = newSession->sessionId;
response->revisedSessionTimeout = (UA_Double)newSession->timeout;
response->authenticationToken = newSession->authenticationToken;
response->responseHeader.serviceResult =
UA_String_copy(&request->sessionName, &newSession->sessionName);
if(server->config.endpointsSize > 0)
response->responseHeader.serviceResult |=
UA_ByteString_copy(&channel->securityPolicy->localCertificate,
&response->serverCertificate);
/* Create a signed nonce */
response->responseHeader.serviceResult =
nonceAndSignCreateSessionResponse(server, channel, newSession, request, response);
/* Failure -> remove the session */
if(response->responseHeader.serviceResult != UA_STATUSCODE_GOOD) {
UA_SessionManager_removeSession(&server->sessionManager, &newSession->authenticationToken);
return;
}
UA_LOG_DEBUG_CHANNEL(server->config.logger, channel,
"Session " UA_PRINTF_GUID_FORMAT " created",
UA_PRINTF_GUID_DATA(newSession->sessionId.identifier.guid));
}
void Service_CreateSession(UA_Server *server, UA_SecureChannel *channel,
const UA_CreateSessionRequest *request,
UA_CreateSessionResponse *response) {
if(channel->securityToken.channelId == 0) {
response->responseHeader.serviceResult =
UA_STATUSCODE_BADSECURECHANNELIDINVALID;
return;
}
/* Allocate the response */
response->serverEndpoints = (UA_EndpointDescription*)
UA_Array_new(server->config.endpoints.count,
&UA_TYPES[UA_TYPES_ENDPOINTDESCRIPTION]);
if(!response->serverEndpoints) {
response->responseHeader.serviceResult = UA_STATUSCODE_BADOUTOFMEMORY;
return;
}
response->serverEndpointsSize = server->config.endpoints.count;
/* Copy the server's endpointdescriptions into the response */
for(size_t i = 0; i < server->config.endpoints.count; ++i)
response->responseHeader.serviceResult |=
UA_EndpointDescription_copy(&server->config.endpoints.endpoints[0].endpointDescription,
&response->serverEndpoints[i]);
/* Mirror back the endpointUrl */
for(size_t i = 0; i < response->serverEndpointsSize; ++i) {
UA_String_deleteMembers(&response->serverEndpoints[i].endpointUrl);
UA_String_copy(&request->endpointUrl,
&response->serverEndpoints[i].endpointUrl);
}
UA_Session *newSession;
response->responseHeader.serviceResult =
UA_SessionManager_createSession(&server->sessionManager,
channel, request, &newSession);
if(response->responseHeader.serviceResult != UA_STATUSCODE_GOOD) {
UA_LOG_DEBUG_CHANNEL(server->config.logger, channel,
"Processing CreateSessionRequest failed");
return;
}
/* Fill the session with more information */
newSession->maxResponseMessageSize = request->maxResponseMessageSize;
newSession->maxRequestMessageSize =
channel->connection->localConf.maxMessageSize;
response->responseHeader.serviceResult |=
UA_ApplicationDescription_copy(&request->clientDescription,
&newSession->clientDescription);
/* Prepare the response */
response->sessionId = newSession->sessionId;
response->revisedSessionTimeout = (UA_Double)newSession->timeout;
response->authenticationToken = newSession->authenticationToken;
response->responseHeader.serviceResult =
UA_String_copy(&request->sessionName, &newSession->sessionName);
if(server->config.endpoints.count > 0)
response->responseHeader.serviceResult |=
UA_ByteString_copy(&server->config.endpoints.endpoints[0].endpointDescription.serverCertificate,
&response->serverCertificate);
/* Failure -> remove the session */
if(response->responseHeader.serviceResult != UA_STATUSCODE_GOOD) {
UA_SessionManager_removeSession(&server->sessionManager,
&newSession->authenticationToken);
return;
}
UA_LOG_DEBUG_CHANNEL(server->config.logger, channel,
"Session " UA_PRINTF_GUID_FORMAT " created",
UA_PRINTF_GUID_DATA(newSession->sessionId.identifier.guid));
}
UA_StatusCode
UA_NodeId_toString(const UA_NodeId *nodeId, UA_String *nodeIdStr) {
if (nodeIdStr->length != 0) {
UA_free(nodeIdStr->data);
nodeIdStr->data = NULL;
nodeIdStr->length = 0;
}
if (nodeId == NULL)
return UA_STATUSCODE_GOOD;
char *nsStr = NULL;
long snprintfLen = 0;
size_t nsLen = 0;
if (nodeId->namespaceIndex != 0) {
nsStr = (char*)UA_malloc(9+1); // strlen("ns=XXXXX;") = 9 + Nullbyte
snprintfLen = UA_snprintf(nsStr, 10, "ns=%d;", nodeId->namespaceIndex);
if (snprintfLen < 0 || snprintfLen >= 10) {
UA_free(nsStr);
return UA_STATUSCODE_BADINTERNALERROR;
}
nsLen = (size_t)(snprintfLen);
}
UA_ByteString byteStr = UA_BYTESTRING_NULL;
switch (nodeId->identifierType) {
case UA_NODEIDTYPE_NUMERIC:
/* ns (2 byte, 65535) = 5 chars, numeric (4 byte, 4294967295) = 10 chars, delim = 1 , nullbyte = 1-> 17 chars */
nodeIdStr->length = nsLen + 2 + 10 + 1;
nodeIdStr->data = (UA_Byte*)UA_malloc(nodeIdStr->length);
if (nodeIdStr->data == NULL) {
nodeIdStr->length = 0;
UA_free(nsStr);
return UA_STATUSCODE_BADOUTOFMEMORY;
}
snprintfLen =UA_snprintf((char*)nodeIdStr->data, nodeIdStr->length, "%si=%lu",
nsLen > 0 ? nsStr : "",
(unsigned long )nodeId->identifier.numeric);
break;
case UA_NODEIDTYPE_STRING:
/* ns (16bit) = 5 chars, strlen + nullbyte */
nodeIdStr->length = nsLen + 2 + nodeId->identifier.string.length + 1;
nodeIdStr->data = (UA_Byte*)UA_malloc(nodeIdStr->length);
if (nodeIdStr->data == NULL) {
nodeIdStr->length = 0;
UA_free(nsStr);
return UA_STATUSCODE_BADOUTOFMEMORY;
}
snprintfLen =UA_snprintf((char*)nodeIdStr->data, nodeIdStr->length, "%ss=%.*s",
nsLen > 0 ? nsStr : "",
(int)nodeId->identifier.string.length, nodeId->identifier.string.data);
break;
case UA_NODEIDTYPE_GUID:
/* ns (16bit) = 5 chars + strlen(A123456C-0ABC-1A2B-815F-687212AAEE1B)=36 + nullbyte */
nodeIdStr->length = nsLen + 2 + 36 + 1;
nodeIdStr->data = (UA_Byte*)UA_malloc(nodeIdStr->length);
if (nodeIdStr->data == NULL) {
nodeIdStr->length = 0;
UA_free(nsStr);
return UA_STATUSCODE_BADOUTOFMEMORY;
}
snprintfLen = UA_snprintf((char*)nodeIdStr->data, nodeIdStr->length, "%sg=" UA_PRINTF_GUID_FORMAT,
nsLen > 0 ? nsStr : "",
UA_PRINTF_GUID_DATA(nodeId->identifier.guid));
break;
case UA_NODEIDTYPE_BYTESTRING:
UA_ByteString_toBase64String(&nodeId->identifier.byteString, &byteStr);
/* ns (16bit) = 5 chars + LEN + nullbyte */
nodeIdStr->length = nsLen + 2 + byteStr.length + 1;
nodeIdStr->data = (UA_Byte*)UA_malloc(nodeIdStr->length);
if (nodeIdStr->data == NULL) {
nodeIdStr->length = 0;
UA_String_deleteMembers(&byteStr);
UA_free(nsStr);
return UA_STATUSCODE_BADOUTOFMEMORY;
}
snprintfLen = UA_snprintf((char*)nodeIdStr->data, nodeIdStr->length, "%sb=%.*s",
nsLen > 0 ? nsStr : "",
(int)byteStr.length, byteStr.data);
UA_String_deleteMembers(&byteStr);
break;
}
UA_free(nsStr);
if (snprintfLen < 0 || snprintfLen >= (long) nodeIdStr->length) {
UA_free(nodeIdStr->data);
nodeIdStr->data = NULL;
nodeIdStr->length = 0;
return UA_STATUSCODE_BADINTERNALERROR;
}
nodeIdStr->length = (size_t)snprintfLen;
return UA_STATUSCODE_GOOD;
}