170 struct protosw {
218 	struct protosw *pr_next;        /* chain for domain */
255 struct protosw {  struct
256 	TAILQ_ENTRY(protosw) pr_entry; /* chain for domain */
258 	struct protosw *pr_protosw;     /* pointer to self */  argument
281 	(struct protosw *, struct domain *);  argument
612 extern struct protosw *pffindproto_locked(int, int, int);
613 extern struct protosw *pffindprotonotype(int, int);
614 extern struct protosw *pffindtype(int, int);
616 extern int net_add_proto(struct protosw *, struct domain *, int)
618 extern void net_init_proto(struct protosw *, struct domain *);
628 extern struct protosw *pffindproto(int family, int protocol, int type)
631 extern int net_add_proto(struct protosw *, struct domain *);
633 extern struct protosw *pffindproto(int family, int protocol, int type);