digraph node_states {	Secondary -> Primary           [ label = "ioctl_set_state()" ]	Primary   -> Secondary 	       [ label = "ioctl_set_state()" ]} digraph peer_states {	Secondary -> Primary           [ label = "recv state packet" ]	Primary   -> Secondary 	       [ label = "recv state packet" ]	Primary   -> Unknown 	       [ label = "connection lost" ]	Secondary  -> Unknown  	       [ label = "connection lost" ]	Unknown   -> Primary           [ label = "connected" ]	Unknown   -> Secondary         [ label = "connected" ]}