186     struct ifnet *ifp, int bridged, struct llentry *la);
187 static void arp_mark_lle_reachable(struct llentry *la, struct ifnet *ifp);
464 	struct llentry *la = NULL, *la_tmp;  in arpresolve_full()  local
477 		la = lla_lookup(LLTABLE(ifp), LLE_EXCLUSIVE, dst);  in arpresolve_full()
478 	if (la == NULL && (ifp->if_flags & (IFF_NOARP | IFF_STATICARP)) == 0) {  in arpresolve_full()
479 		la = lltable_alloc_entry(LLTABLE(ifp), 0, dst);  in arpresolve_full()
480 		if (la == NULL) {  in arpresolve_full()
492 		LLE_WLOCK(la);  in arpresolve_full()
496 			lltable_link_entry(LLTABLE(ifp), la);  in arpresolve_full()
499 			lltable_free_entry(LLTABLE(ifp), la);  in arpresolve_full()
500 			la = la_tmp;  in arpresolve_full()
503 	if (la == NULL) {  in arpresolve_full()
508 	if ((la->la_flags & LLE_VALID) &&  in arpresolve_full()
509 	    ((la->la_flags & LLE_STATIC) || la->la_expire > time_uptime)) {  in arpresolve_full()
511 			lladdr = la->ll_addr;  in arpresolve_full()
514 			lladdr = la->r_linkdata;  in arpresolve_full()
515 			ll_len = la->r_hdrlen;  in arpresolve_full()
520 		llentry_provide_feedback(la);  in arpresolve_full()
522 			*pflags = la->la_flags & (LLE_VALID|LLE_IFADDR);  in arpresolve_full()
524 			LLE_ADDREF(la);  in arpresolve_full()
525 			*plle = la;  in arpresolve_full()
527 		LLE_WUNLOCK(la);  in arpresolve_full()
531 	renew = (la->la_asked == 0 || la->la_expire != time_uptime);  in arpresolve_full()
540 		size_t dropped = lltable_append_entry_queue(la, m, V_arp_maxhold);  in arpresolve_full()
550 	if (la->la_asked < V_arp_maxtries)  in arpresolve_full()
558 		LLE_ADDREF(la);  in arpresolve_full()
559 		la->la_expire = time_uptime;  in arpresolve_full()
560 		canceled = callout_reset(&la->lle_timer, hz * V_arpt_down,  in arpresolve_full()
561 		    arptimer, la);  in arpresolve_full()
563 			LLE_REMREF(la);  in arpresolve_full()
564 		la->la_asked++;  in arpresolve_full()
565 		LLE_WUNLOCK(la);  in arpresolve_full()
576 	LLE_WUNLOCK(la);  in arpresolve_full()
601 	struct llentry *la = NULL;  in arpresolve()  local
624 	la = lla_lookup(LLTABLE(ifp), plle ? LLE_EXCLUSIVE : LLE_UNLOCKED, dst);  in arpresolve()
625 	if (la != NULL && (la->r_flags & RLLE_VALID) != 0) {  in arpresolve()
627 		bcopy(la->r_linkdata, desten, la->r_hdrlen);  in arpresolve()
629 			*pflags = LLE_VALID | (la->r_flags & RLLE_IFADDR);  in arpresolve()
631 		llentry_provide_feedback(la);  in arpresolve()
633 			LLE_ADDREF(la);  in arpresolve()
634 			*plle = la;  in arpresolve()
635 			LLE_WUNLOCK(la);  in arpresolve()
639 	if (plle && la)  in arpresolve()
640 		LLE_WUNLOCK(la);  in arpresolve()
642 	return (arpresolve_full(ifp, is_gw, la == NULL ? LLE_CREATE : 0, m, dst,  in arpresolve()
770 	struct llentry *la = NULL, *la_tmp;  in in_arpinput()  local
937 	la = lla_lookup(LLTABLE(ifp), LLE_EXCLUSIVE, dst);  in in_arpinput()
938 	if (la != NULL)  in in_arpinput()
939 		arp_check_update_lle(ah, isaddr, ifp, bridged, la);  in in_arpinput()
951 		la = lltable_alloc_entry(LLTABLE(ifp), 0, dst);  in in_arpinput()
952 		if (la == NULL) {  in in_arpinput()
961 		lltable_set_entry_addr(ifp, la, linkhdr, linkhdrsize,  in in_arpinput()
965 		LLE_WLOCK(la);  in in_arpinput()
985 			lltable_link_entry(LLTABLE(ifp), la);  in in_arpinput()
989 			arp_mark_lle_reachable(la, ifp);  in in_arpinput()
990 			LLE_WUNLOCK(la);  in in_arpinput()
993 			lltable_free_entry(LLTABLE(ifp), la);  in in_arpinput()
994 			la = la_tmp;  in in_arpinput()
996 			arp_check_update_lle(ah, isaddr, ifp, bridged, la);  in in_arpinput()
999 		la = NULL;  in in_arpinput()
1126 arp_grab_holdchain(struct llentry *la)  in arp_grab_holdchain()  argument
1130 	LLE_WLOCK_ASSERT(la);  in arp_grab_holdchain()
1132 	chain = la->la_hold;  in arp_grab_holdchain()
1133 	la->la_hold = NULL;  in arp_grab_holdchain()
1134 	la->la_numheld = 0;  in arp_grab_holdchain()
1140 arp_flush_holdchain(struct ifnet *ifp, struct llentry *la, struct mbuf *chain)  in arp_flush_holdchain()  argument
1148 		.ro_prepend = la->r_linkdata,  in arp_flush_holdchain()
1149 		.ro_plen = la->r_hdrlen,  in arp_flush_holdchain()
1152 	lltable_fill_sa_entry(la, (struct sockaddr *)&sin);  in arp_flush_holdchain()
1169     int bridged, struct llentry *la)  in arp_check_update_lle()  argument
1176 	LLE_WLOCK_ASSERT(la);  in arp_check_update_lle()
1179 	if (!bridged && la->lle_tbl->llt_ifp != ifp) {  in arp_check_update_lle()
1184 			    la->lle_tbl->llt_ifp->if_xname,  in arp_check_update_lle()
1187 		LLE_WUNLOCK(la);  in arp_check_update_lle()
1190 	if ((la->la_flags & LLE_VALID) &&  in arp_check_update_lle()
1191 	    bcmp(ar_sha(ah), la->ll_addr, ifp->if_addrlen)) {  in arp_check_update_lle()
1192 		if (la->la_flags & LLE_STATIC) {  in arp_check_update_lle()
1193 			LLE_WUNLOCK(la);  in arp_check_update_lle()
1209 			    (u_char *)la->ll_addr, ":",  in arp_check_update_lle()
1219 		LLE_WUNLOCK(la);  in arp_check_update_lle()
1224 	if (memcmp(la->r_linkdata, linkhdr, linkhdrsize) != 0 ||  in arp_check_update_lle()
1225 	    (la->la_flags & LLE_VALID) == 0) {  in arp_check_update_lle()
1227 		if (lltable_try_set_entry_addr(ifp, la, linkhdr, linkhdrsize,  in arp_check_update_lle()
1229 			LLE_WUNLOCK(la);  in arp_check_update_lle()
1234 		llentry_mark_used(la);  in arp_check_update_lle()
1237 	arp_mark_lle_reachable(la, ifp);  in arp_check_update_lle()
1246 	if (la->la_hold != NULL) {  in arp_check_update_lle()
1249 		chain = arp_grab_holdchain(la);  in arp_check_update_lle()
1250 		LLE_WUNLOCK(la);  in arp_check_update_lle()
1251 		arp_flush_holdchain(ifp, la, chain);  in arp_check_update_lle()
1253 		LLE_WUNLOCK(la);  in arp_check_update_lle()
1257 arp_mark_lle_reachable(struct llentry *la, struct ifnet *ifp)  in arp_mark_lle_reachable()  argument
1261 	LLE_WLOCK_ASSERT(la);  in arp_mark_lle_reachable()
1263 	la->ln_state = ARP_LLINFO_REACHABLE;  in arp_mark_lle_reachable()
1264 	EVENTHANDLER_INVOKE(lle_event, la, LLENTRY_RESOLVED);  in arp_mark_lle_reachable()
1267 		la->la_flags |= LLE_STATIC;  in arp_mark_lle_reachable()
1269 	if (!(la->la_flags & LLE_STATIC)) {  in arp_mark_lle_reachable()
1270 		LLE_ADDREF(la);  in arp_mark_lle_reachable()
1271 		la->la_expire = time_uptime + V_arpt_keep;  in arp_mark_lle_reachable()
1275 		canceled = callout_reset(&la->lle_timer,  in arp_mark_lle_reachable()
1276 		    hz * wtime, arptimer, la);  in arp_mark_lle_reachable()
1278 			LLE_REMREF(la);  in arp_mark_lle_reachable()
1280 	la->la_asked = 0;  in arp_mark_lle_reachable()
1281 	la->la_preempt = V_arp_maxtries;  in arp_mark_lle_reachable()