+int at_pcballoc(struct socket *, struct atpcb *);
+int at_pcbdetach(struct atpcb *);
+int at_pcbbind(struct atpcb *, struct sockaddr *);
+
+int atalk_getref(struct fileproc *, int , gref_t ** , struct proc *, int);
+int atalk_getref_locked(struct fileproc *, int , gref_t ** , struct proc *, int);
+