int session_lookup_add_connection (transport_connection_t * tc, u64 value);
int session_lookup_del_connection (transport_connection_t * tc);
u64 session_lookup_endpoint_listener (u32 table_index,
int session_lookup_add_connection (transport_connection_t * tc, u64 value);
int session_lookup_del_connection (transport_connection_t * tc);
u64 session_lookup_endpoint_listener (u32 table_index,