/* Takes the raw message from the network layer */
void
UA_Server_processBinaryMessage(UA_Server *server, UA_Connection *connection,
const UA_ByteString *message) {
UA_SecureChannel *channel = connection->channel;
if(channel) {
/* Assemble chunks in the securechannel and process complete messages */
UA_StatusCode retval =
UA_SecureChannel_processChunks(channel, message,
(UA_ProcessMessageCallback*)UA_Server_processSecureChannelMessage, server);
if(retval != UA_STATUSCODE_GOOD)
UA_LOG_TRACE_CHANNEL(server->config.logger, channel,
"Procesing chunkgs resulted in error code 0x%08x", retval);
} else {
/* Process messages without a channel and no chunking */
size_t offset = 0;
UA_TcpMessageHeader tcpMessageHeader;
UA_StatusCode retval = UA_TcpMessageHeader_decodeBinary(message, &offset, &tcpMessageHeader);
if(retval != UA_STATUSCODE_GOOD) {
connection->close(connection);
return;
}
/* Dispatch according to the message type */
switch(tcpMessageHeader.messageTypeAndChunkType & 0x00ffffff) {
case UA_MESSAGETYPE_HEL:
UA_LOG_TRACE(server->config.logger, UA_LOGCATEGORY_NETWORK,
"Connection %i | Process HEL message", connection->sockfd);
processHEL(connection, message, &offset);
break;
case UA_MESSAGETYPE_OPN: {
UA_LOG_TRACE(server->config.logger, UA_LOGCATEGORY_NETWORK,
"Connection %i | Process OPN message", connection->sockfd);
UA_UInt32 channelId = 0;
retval = UA_UInt32_decodeBinary(message, &offset, &channelId);
if(retval != UA_STATUSCODE_GOOD)
connection->close(connection);
UA_ByteString offsetMessage = (UA_ByteString){
.data = message->data + 12, .length = message->length - 12};
processOPN(server, connection, channelId, &offsetMessage);
break; }
case UA_MESSAGETYPE_MSG:
UA_LOG_TRACE(server->config.logger, UA_LOGCATEGORY_NETWORK,
"Connection %i | Processing a MSG message not possible "
"without a SecureChannel", connection->sockfd);
connection->close(connection);
break;
case UA_MESSAGETYPE_CLO:
UA_LOG_TRACE(server->config.logger, UA_LOGCATEGORY_NETWORK,
"Connection %i | Processing a CLO message not possible "
"without a SecureChannel", connection->sockfd);
connection->close(connection);
break;
default:
UA_LOG_TRACE(server->config.logger, UA_LOGCATEGORY_NETWORK,
"Connection %i | Unknown message type", connection->sockfd);
connection->close(connection);
}
}
}
/**
* process binary message received from Connection
* dose not modify UA_ByteString you have to free it youself.
* use of connection->getSendBuffer() and connection->sent() to answer Message
*/
void UA_Server_processBinaryMessage(UA_Server *server, UA_Connection *connection, const UA_ByteString *msg) {
size_t pos = 0;
UA_TcpMessageHeader tcpMessageHeader;
do {
if(UA_TcpMessageHeader_decodeBinary(msg, &pos, &tcpMessageHeader)) {
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_NETWORK, "Decoding of message header failed");
connection->close(connection);
break;
}
size_t targetpos = pos - 8 + tcpMessageHeader.messageSize;
switch(tcpMessageHeader.messageTypeAndFinal & 0xffffff) {
case UA_MESSAGETYPEANDFINAL_HELF & 0xffffff:
processHEL(connection, msg, &pos);
break;
case UA_MESSAGETYPEANDFINAL_OPNF & 0xffffff:
processOPN(connection, server, msg, &pos);
break;
case UA_MESSAGETYPEANDFINAL_MSGF & 0xffffff:
#ifndef EXTENSION_STATELESS
if(connection->state != UA_CONNECTION_ESTABLISHED) {
connection->close(connection);
return;
}
#endif
processMSG(connection, server, msg, &pos);
break;
case UA_MESSAGETYPEANDFINAL_CLOF & 0xffffff:
processCLO(connection, server, msg, &pos);
connection->close(connection);
return;
default:
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_NETWORK,
"Unknown request type on Connection %i", connection->sockfd);
}
UA_TcpMessageHeader_deleteMembers(&tcpMessageHeader);
if(pos != targetpos) {
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_NETWORK,
"Message on Connection %i was not entirely processed. "
"Arrived at position %i, skip after the announced length to position %i",
connection->sockfd, pos, targetpos);
pos = targetpos;
}
} while(msg->length > pos);
}
void UA_Server_processBinaryMessage(UA_Server *server, UA_Connection *connection, UA_ByteString *msg) {
if(msg->length <= 0)
return;
size_t pos = 0;
UA_TcpMessageHeader tcpMessageHeader;
do {
if(UA_TcpMessageHeader_decodeBinary(msg, &pos, &tcpMessageHeader)) {
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_COMMUNICATION, "Decoding of message header failed");
connection->close(connection);
break;
}
size_t targetpos = pos - 8 + tcpMessageHeader.messageSize;
switch(tcpMessageHeader.messageTypeAndFinal & 0xffffff) {
case UA_MESSAGETYPEANDFINAL_HELF & 0xffffff:
processHEL(connection, msg, &pos);
break;
case UA_MESSAGETYPEANDFINAL_OPNF & 0xffffff:
processOPN(connection, server, msg, &pos);
break;
case UA_MESSAGETYPEANDFINAL_MSGF & 0xffffff:
#ifndef EXTENSION_STATELESS
if(connection->state != UA_CONNECTION_ESTABLISHED)
connection->close(connection);
else
#endif
processMSG(connection, server, msg, &pos);
break;
case UA_MESSAGETYPEANDFINAL_CLOF & 0xffffff:
processCLO(connection, server, msg, &pos);
connection->close(connection);
return;
}
UA_TcpMessageHeader_deleteMembers(&tcpMessageHeader);
if(pos != targetpos) {
UA_LOG_INFO(server->logger, UA_LOGCATEGORY_COMMUNICATION,
"The message was not entirely processed, skipping to the end");
pos = targetpos;
}
} while(msg->length > (UA_Int32)pos);
}
