187     struct ifnet *ifp, int bridged, struct llentry *la);
188 static void arp_mark_lle_reachable(struct llentry *la, struct ifnet *ifp);
465 	struct llentry *la = NULL, *la_tmp;  in arpresolve_full()  local
478 		la = lla_lookup(LLTABLE(ifp), LLE_EXCLUSIVE, dst);  in arpresolve_full()
479 	if (la == NULL && (ifp->if_flags & (IFF_NOARP | IFF_STATICARP)) == 0) {  in arpresolve_full()
480 		la = lltable_alloc_entry(LLTABLE(ifp), 0, dst);  in arpresolve_full()
481 		if (la == NULL) {  in arpresolve_full()
493 		LLE_WLOCK(la);  in arpresolve_full()
497 			lltable_link_entry(LLTABLE(ifp), la);  in arpresolve_full()
500 			lltable_free_entry(LLTABLE(ifp), la);  in arpresolve_full()
501 			la = la_tmp;  in arpresolve_full()
504 	if (la == NULL) {  in arpresolve_full()
509 	if ((la->la_flags & LLE_VALID) &&  in arpresolve_full()
510 	    ((la->la_flags & LLE_STATIC) || la->la_expire > time_uptime)) {  in arpresolve_full()
512 			lladdr = la->ll_addr;  in arpresolve_full()
515 			lladdr = la->r_linkdata;  in arpresolve_full()
516 			ll_len = la->r_hdrlen;  in arpresolve_full()
521 		llentry_provide_feedback(la);  in arpresolve_full()
523 			*pflags = la->la_flags & (LLE_VALID|LLE_IFADDR);  in arpresolve_full()
525 			LLE_ADDREF(la);  in arpresolve_full()
526 			*plle = la;  in arpresolve_full()
528 		LLE_WUNLOCK(la);  in arpresolve_full()
532 	renew = (la->la_asked == 0 || la->la_expire != time_uptime);  in arpresolve_full()
541 		size_t dropped = lltable_append_entry_queue(la, m, V_arp_maxhold);  in arpresolve_full()
551 	if (la->la_asked < V_arp_maxtries)  in arpresolve_full()
559 		LLE_ADDREF(la);  in arpresolve_full()
560 		la->la_expire = time_uptime;  in arpresolve_full()
561 		canceled = callout_reset(&la->lle_timer, hz * V_arpt_down,  in arpresolve_full()
562 		    arptimer, la);  in arpresolve_full()
564 			LLE_REMREF(la);  in arpresolve_full()
565 		la->la_asked++;  in arpresolve_full()
566 		LLE_WUNLOCK(la);  in arpresolve_full()
577 	LLE_WUNLOCK(la);  in arpresolve_full()
602 	struct llentry *la = NULL;  in arpresolve()  local
625 	la = lla_lookup(LLTABLE(ifp), plle ? LLE_EXCLUSIVE : LLE_UNLOCKED, dst);  in arpresolve()
626 	if (la != NULL && (la->r_flags & RLLE_VALID) != 0) {  in arpresolve()
628 		bcopy(la->r_linkdata, desten, la->r_hdrlen);  in arpresolve()
630 			*pflags = LLE_VALID | (la->r_flags & RLLE_IFADDR);  in arpresolve()
632 		llentry_provide_feedback(la);  in arpresolve()
634 			LLE_ADDREF(la);  in arpresolve()
635 			*plle = la;  in arpresolve()
636 			LLE_WUNLOCK(la);  in arpresolve()
640 	if (plle && la)  in arpresolve()
641 		LLE_WUNLOCK(la);  in arpresolve()
643 	return (arpresolve_full(ifp, is_gw, la == NULL ? LLE_CREATE : 0, m, dst,  in arpresolve()
771 	struct llentry *la = NULL, *la_tmp;  in in_arpinput()  local
938 	la = lla_lookup(LLTABLE(ifp), LLE_EXCLUSIVE, dst);  in in_arpinput()
939 	if (la != NULL)  in in_arpinput()
940 		arp_check_update_lle(ah, isaddr, ifp, bridged, la);  in in_arpinput()
952 		la = lltable_alloc_entry(LLTABLE(ifp), 0, dst);  in in_arpinput()
953 		if (la == NULL) {  in in_arpinput()
962 		lltable_set_entry_addr(ifp, la, linkhdr, linkhdrsize,  in in_arpinput()
966 		LLE_WLOCK(la);  in in_arpinput()
986 			lltable_link_entry(LLTABLE(ifp), la);  in in_arpinput()
990 			arp_mark_lle_reachable(la, ifp);  in in_arpinput()
991 			LLE_WUNLOCK(la);  in in_arpinput()
994 			lltable_free_entry(LLTABLE(ifp), la);  in in_arpinput()
995 			la = la_tmp;  in in_arpinput()
997 			arp_check_update_lle(ah, isaddr, ifp, bridged, la);  in in_arpinput()
1000 		la = NULL;  in in_arpinput()
1127 arp_grab_holdchain(struct llentry *la)  in arp_grab_holdchain()  argument
1131 	LLE_WLOCK_ASSERT(la);  in arp_grab_holdchain()
1133 	chain = la->la_hold;  in arp_grab_holdchain()
1134 	la->la_hold = NULL;  in arp_grab_holdchain()
1135 	la->la_numheld = 0;  in arp_grab_holdchain()
1141 arp_flush_holdchain(struct ifnet *ifp, struct llentry *la, struct mbuf *chain)  in arp_flush_holdchain()  argument
1149 		.ro_prepend = la->r_linkdata,  in arp_flush_holdchain()
1150 		.ro_plen = la->r_hdrlen,  in arp_flush_holdchain()
1153 	lltable_fill_sa_entry(la, (struct sockaddr *)&sin);  in arp_flush_holdchain()
1170     int bridged, struct llentry *la)  in arp_check_update_lle()  argument
1177 	LLE_WLOCK_ASSERT(la);  in arp_check_update_lle()
1180 	if (!bridged && la->lle_tbl->llt_ifp != ifp) {  in arp_check_update_lle()
1185 			    la->lle_tbl->llt_ifp->if_xname,  in arp_check_update_lle()
1188 		LLE_WUNLOCK(la);  in arp_check_update_lle()
1191 	if ((la->la_flags & LLE_VALID) &&  in arp_check_update_lle()
1192 	    bcmp(ar_sha(ah), la->ll_addr, ifp->if_addrlen)) {  in arp_check_update_lle()
1193 		if (la->la_flags & LLE_STATIC) {  in arp_check_update_lle()
1194 			LLE_WUNLOCK(la);  in arp_check_update_lle()
1210 			    (u_char *)la->ll_addr, ":",  in arp_check_update_lle()
1220 		LLE_WUNLOCK(la);  in arp_check_update_lle()
1225 	if (memcmp(la->r_linkdata, linkhdr, linkhdrsize) != 0 ||  in arp_check_update_lle()
1226 	    (la->la_flags & LLE_VALID) == 0) {  in arp_check_update_lle()
1228 		if (lltable_try_set_entry_addr(ifp, la, linkhdr, linkhdrsize,  in arp_check_update_lle()
1230 			LLE_WUNLOCK(la);  in arp_check_update_lle()
1235 		llentry_mark_used(la);  in arp_check_update_lle()
1238 	arp_mark_lle_reachable(la, ifp);  in arp_check_update_lle()
1247 	if (la->la_hold != NULL) {  in arp_check_update_lle()
1250 		chain = arp_grab_holdchain(la);  in arp_check_update_lle()
1251 		LLE_WUNLOCK(la);  in arp_check_update_lle()
1252 		arp_flush_holdchain(ifp, la, chain);  in arp_check_update_lle()
1254 		LLE_WUNLOCK(la);  in arp_check_update_lle()
1258 arp_mark_lle_reachable(struct llentry *la, struct ifnet *ifp)  in arp_mark_lle_reachable()  argument
1262 	LLE_WLOCK_ASSERT(la);  in arp_mark_lle_reachable()
1264 	la->ln_state = ARP_LLINFO_REACHABLE;  in arp_mark_lle_reachable()
1265 	EVENTHANDLER_INVOKE(lle_event, la, LLENTRY_RESOLVED);  in arp_mark_lle_reachable()
1268 		la->la_flags |= LLE_STATIC;  in arp_mark_lle_reachable()
1270 	if (!(la->la_flags & LLE_STATIC)) {  in arp_mark_lle_reachable()
1271 		LLE_ADDREF(la);  in arp_mark_lle_reachable()
1272 		la->la_expire = time_uptime + V_arpt_keep;  in arp_mark_lle_reachable()
1276 		canceled = callout_reset(&la->lle_timer,  in arp_mark_lle_reachable()
1277 		    hz * wtime, arptimer, la);  in arp_mark_lle_reachable()
1279 			LLE_REMREF(la);  in arp_mark_lle_reachable()
1281 	la->la_asked = 0;  in arp_mark_lle_reachable()
1282 	la->la_preempt = V_arp_maxtries;  in arp_mark_lle_reachable()