design.txt

Each packet is of the form:

char[3]  super_fast_hash(data)
char:4   pad bytes
char:4   flags; // stream vs udp
if( stream ) uint32_t seq num
u16      sid; // port
char[]   data

Overhead per packet: 20 + 8 + 4 + 4 + 2   38 bytes


When received, it passed to the proper connection object which decrypts it.
  If flag is 'datagram' then it is sent to the proper service's dgram port
  If flag is 'stream' then the data gets put in the proper service's stream inbuf.


Service registered's a port with the node, 
  when a connection receives data on unknown port, it asks the node to open
    a new stream on that port... the node creates the stream and notifies the service
    about the new connection from the remote node id and it starts a read loop parsing
    messages.  

                      Registered Ports
Node -> Connection -> DGRAM                    <--- Service Register's port with Node
                      STREAM