static UA_Int64 sendReadRequest(ConnectionInfo *connectionInfo, UA_Int32 nodeIds_size,UA_NodeId* nodeIds){ /*UA_Int32 sock, UA_UInt32 channelId, UA_UInt32 tokenId, UA_UInt32 sequenceNumber, UA_UInt32 requestId, UA_NodeId authenticationToken, UA_Int32 nodeIds_size,UA_NodeId* nodeIds) { */ UA_ByteString *message = UA_ByteString_new(); UA_ByteString_newMembers(message, 65536); UA_UInt32 tmpChannelId = connectionInfo->channelId; size_t offset = 0; UA_TcpMessageHeader msghdr; msghdr.messageTypeAndFinal = UA_MESSAGETYPEANDFINAL_MSGF; UA_NodeId type; type.identifier.numeric = 631; type.identifierType = UA_NODEIDTYPE_NUMERIC; type.namespaceIndex = 0; UA_ReadRequest rq; UA_ReadRequest_init(&rq); rq.maxAge = 0; rq.nodesToRead = UA_Array_new(&UA_TYPES[UA_TYPES_READVALUEID], nodeIds_size); rq.nodesToReadSize = 1; for(UA_Int32 i=0;i<nodeIds_size;i++) { UA_ReadValueId_init(&(rq.nodesToRead[i])); rq.nodesToRead[i].attributeId = 6; //WriteMask UA_NodeId_init(&(rq.nodesToRead[i].nodeId)); rq.nodesToRead[i].nodeId = nodeIds[i]; UA_QualifiedName_init(&(rq.nodesToRead[0].dataEncoding)); } rq.requestHeader.timeoutHint = 10000; rq.requestHeader.timestamp = UA_DateTime_now(); rq.requestHeader.authenticationToken = connectionInfo->authenticationToken; rq.timestampsToReturn = 0x03; rq.requestHeader.requestHandle = 1 + connectionInfo->sequenceHdr.requestId; msghdr.messageSize = 16 + UA_TcpMessageHeader_calcSizeBinary(&msghdr) + UA_NodeId_calcSizeBinary(&type) + UA_ReadRequest_calcSizeBinary(&rq); UA_TcpMessageHeader_encodeBinary(&msghdr,message,&offset); UA_UInt32_encodeBinary(&tmpChannelId, message, &offset); UA_UInt32_encodeBinary(&connectionInfo->tokenId, message, &offset); UA_UInt32_encodeBinary(&connectionInfo->sequenceHdr.sequenceNumber, message, &offset); UA_UInt32_encodeBinary(&connectionInfo->sequenceHdr.requestId, message, &offset); UA_NodeId_encodeBinary(&type,message,&offset); UA_ReadRequest_encodeBinary(&rq, message, &offset); UA_DateTime tic = UA_DateTime_now(); UA_Int32 sendret = send(connectionInfo->socket, message->data, offset, 0); UA_Array_delete(rq.nodesToRead, &UA_TYPES[UA_TYPES_READVALUEID], nodeIds_size); UA_ByteString_delete(message); if (sendret < 0) { printf("send readrequest failed"); return 1; } return tic; }
static UA_Int32 sendCreateSession(UA_Int32 sock, UA_UInt32 channelId, UA_UInt32 tokenId, UA_UInt32 sequenceNumber, UA_UInt32 requestId, UA_String *endpointUrl) { UA_ByteString message; UA_ByteString_newMembers(&message, 65536); UA_UInt32 tmpChannelId = channelId; size_t offset = 0; UA_TcpMessageHeader msghdr; msghdr.messageTypeAndFinal = UA_MESSAGETYPEANDFINAL_MSGF; UA_NodeId type; type.identifier.numeric = 461; type.identifierType = UA_NODEIDTYPE_NUMERIC; type.namespaceIndex = 0; UA_CreateSessionRequest rq; UA_CreateSessionRequest_init(&rq); rq.requestHeader.requestHandle = 1; rq.requestHeader.timestamp = UA_DateTime_now(); rq.requestHeader.timeoutHint = 10000; rq.requestHeader.authenticationToken.identifier.numeric = 10; rq.requestHeader.authenticationToken.identifierType = UA_NODEIDTYPE_NUMERIC; rq.requestHeader.authenticationToken.namespaceIndex = 10; UA_String_copy(endpointUrl, &rq.endpointUrl); UA_String_copycstring("mysession", &rq.sessionName); UA_String_copycstring("abcd", &rq.clientCertificate); UA_ByteString_newMembers(&rq.clientNonce, 1); rq.clientNonce.data[0] = 0; rq.requestedSessionTimeout = 1200000; rq.maxResponseMessageSize = UA_INT32_MAX; msghdr.messageSize = 16 + UA_TcpMessageHeader_calcSizeBinary(&msghdr) + UA_NodeId_calcSizeBinary(&type) + UA_CreateSessionRequest_calcSizeBinary(&rq); UA_TcpMessageHeader_encodeBinary(&msghdr, &message, &offset); UA_UInt32_encodeBinary(&tmpChannelId, &message, &offset); UA_UInt32_encodeBinary(&tokenId, &message, &offset); UA_UInt32_encodeBinary(&sequenceNumber, &message, &offset); UA_UInt32_encodeBinary(&requestId, &message, &offset); UA_NodeId_encodeBinary(&type, &message, &offset); UA_CreateSessionRequest_encodeBinary(&rq, &message, &offset); UA_Int32 sendret = send(sock, message.data, offset, 0); UA_ByteString_deleteMembers(&message); UA_CreateSessionRequest_deleteMembers(&rq); if (sendret < 0) { printf("send opensecurechannel failed"); return 1; } return 0; }
static UA_Int32 closeSession(ConnectionInfo *connectionInfo) { size_t offset = 0; UA_ByteString message; UA_ByteString_newMembers(&message, 65536); UA_CloseSessionRequest rq; UA_CloseSessionRequest_init(&rq); rq.requestHeader.requestHandle = 1; rq.requestHeader.timestamp = UA_DateTime_now(); rq.requestHeader.timeoutHint = 10000; rq.requestHeader.authenticationToken.identifier.numeric = 10; rq.requestHeader.authenticationToken.identifierType = UA_NODEIDTYPE_NUMERIC; rq.requestHeader.authenticationToken.namespaceIndex = 10; rq.deleteSubscriptions = UA_TRUE; UA_TcpMessageHeader msghdr; msghdr.messageTypeAndFinal = UA_MESSAGETYPEANDFINAL_MSGF; UA_NodeId type; type.identifier.numeric = 473; type.identifierType = UA_NODEIDTYPE_NUMERIC; type.namespaceIndex = 0; msghdr.messageSize = 16 + UA_TcpMessageHeader_calcSizeBinary(&msghdr) + UA_NodeId_calcSizeBinary(&type) + UA_CloseSessionRequest_calcSizeBinary(&rq); UA_TcpMessageHeader_encodeBinary(&msghdr, &message, &offset); UA_UInt32_encodeBinary(&connectionInfo->channelId, &message, &offset); UA_UInt32_encodeBinary(&connectionInfo->tokenId, &message, &offset); UA_UInt32_encodeBinary(&connectionInfo->sequenceHdr.sequenceNumber, &message, &offset); UA_UInt32_encodeBinary(&connectionInfo->sequenceHdr.requestId, &message, &offset); UA_NodeId_encodeBinary(&type, &message, &offset); UA_CloseSessionRequest_encodeBinary(&rq, &message, &offset); UA_Int32 sendret = send(connectionInfo->socket, message.data, offset, 0); UA_ByteString_deleteMembers(&message); UA_CloseSessionRequest_deleteMembers(&rq); if(sendret < 0) { printf("send closesessionrequest failed"); return 1; } return 0; }
static UA_Int32 sendActivateSession(UA_Int32 sock, UA_UInt32 channelId, UA_UInt32 tokenId, UA_UInt32 sequenceNumber, UA_UInt32 requestId, UA_NodeId authenticationToken) { UA_ByteString *message = UA_ByteString_new(); UA_ByteString_newMembers(message, 65536); UA_UInt32 tmpChannelId = channelId; size_t offset = 0; UA_TcpMessageHeader msghdr; msghdr.messageTypeAndFinal = UA_MESSAGETYPEANDFINAL_MSGF; msghdr.messageSize = 86; UA_NodeId type; type.identifier.numeric = 467; type.identifierType = UA_NODEIDTYPE_NUMERIC; type.namespaceIndex = 0; UA_ActivateSessionRequest rq; UA_ActivateSessionRequest_init(&rq); rq.requestHeader.requestHandle = 2; rq.requestHeader.authenticationToken = authenticationToken; rq.requestHeader.timestamp = UA_DateTime_now(); rq.requestHeader.timeoutHint = 10000; msghdr.messageSize = 16 + UA_TcpMessageHeader_calcSizeBinary(&msghdr) + UA_NodeId_calcSizeBinary(&type) + UA_ActivateSessionRequest_calcSizeBinary(&rq); UA_TcpMessageHeader_encodeBinary(&msghdr, message, &offset); UA_UInt32_encodeBinary(&tmpChannelId, message, &offset); UA_UInt32_encodeBinary(&tokenId, message, &offset); UA_UInt32_encodeBinary(&sequenceNumber, message, &offset); UA_UInt32_encodeBinary(&requestId, message, &offset); UA_NodeId_encodeBinary(&type, message, &offset); UA_ActivateSessionRequest_encodeBinary(&rq, message, &offset); UA_Int32 sendret = send(sock, message->data, offset, 0); UA_ByteString_delete(message); if (sendret < 0) { printf("send opensecurechannel failed"); return 1; } return 0; }
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); }