315 	struct llinfo_nd6 *__single ln = arg;  in nd6_llinfo_free()  local
317 	if (ln->ln_next != NULL || ln->ln_prev != NULL) {  in nd6_llinfo_free()
318 		panic("%s: trying to free %p when it is in use", __func__, ln);  in nd6_llinfo_free()
323 	if (ln->ln_hold != NULL) {  in nd6_llinfo_free()
324 		m_freem_list(ln->ln_hold);  in nd6_llinfo_free()
325 		ln->ln_hold = NULL;  in nd6_llinfo_free()
329 	VERIFY(ln->ln_rt->rt_llinfo == ln);  in nd6_llinfo_free()
330 	if (ln->ln_rt->rt_llinfo_purge != NULL) {  in nd6_llinfo_free()
331 		ln->ln_rt->rt_llinfo_purge(ln->ln_rt);  in nd6_llinfo_free()
334 	zfree(llinfo_nd6_zone, ln);  in nd6_llinfo_free()
340 	struct llinfo_nd6 *__single ln = rt->rt_llinfo;  in nd6_llinfo_purge()  local
343 	VERIFY(rt->rt_llinfo_purge == nd6_llinfo_purge && ln != NULL);  in nd6_llinfo_purge()
345 	if (ln->ln_llreach != NULL) {  in nd6_llinfo_purge()
347 		ifnet_llreach_free(ln->ln_llreach);  in nd6_llinfo_purge()
348 		ln->ln_llreach = NULL;  in nd6_llinfo_purge()
350 	ln->ln_lastused = 0;  in nd6_llinfo_purge()
356 	struct llinfo_nd6 *__single ln = rt->rt_llinfo;  in nd6_llinfo_get_ri()  local
357 	struct if_llreach *__single lr = ln->ln_llreach;  in nd6_llinfo_get_ri()
370 		    ifnet_llreach_up2calexp(lr, ln->ln_lastused);  in nd6_llinfo_get_ri()
378 	struct llinfo_nd6 *__single ln = rt->rt_llinfo;  in nd6_llinfo_get_iflri()  local
379 	struct if_llreach *__single lr = ln->ln_llreach;  in nd6_llinfo_get_iflri()
392 		    ifnet_llreach_up2upexp(lr, ln->ln_lastused);  in nd6_llinfo_get_iflri()
400 	struct llinfo_nd6 *__single ln = rt->rt_llinfo;  in nd6_llinfo_refresh()  local
409 	if (!ln || ln->ln_expire == 0 || (rt->rt_flags & RTF_STATIC) ||  in nd6_llinfo_refresh()
415 	if ((ln->ln_state > ND6_LLINFO_INCOMPLETE) &&  in nd6_llinfo_refresh()
416 	    (ln->ln_state < ND6_LLINFO_PROBE)) {  in nd6_llinfo_refresh()
417 		if (ln->ln_expire > timenow) {  in nd6_llinfo_refresh()
418 			ln_setexpire(ln, timenow);  in nd6_llinfo_refresh()
419 			ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_PROBE);  in nd6_llinfo_refresh()
459 ln_setexpire(struct llinfo_nd6 *ln, uint64_t expiry)  in ln_setexpire()  argument
461 	ln->ln_expire = expiry;  in ln_setexpire()
465 ln_getexpire(struct llinfo_nd6 *ln)  in ln_getexpire()  argument
470 	if (ln->ln_expire != 0) {  in ln_getexpire()
471 		rtentry_ref_t rt = ln->ln_rt;  in ln_getexpire()
482 		    ln->ln_expire - rt->base_uptime;  in ln_getexpire()
784 	struct llinfo_nd6 *__single ln;  in nd6_service_neighbor_cache()  local
850 	ln = llinfo_nd6.ln_next;  in nd6_service_neighbor_cache()
851 	while (ln != NULL && ln != &llinfo_nd6) {  in nd6_service_neighbor_cache()
860 		next = ln->ln_next;  in nd6_service_neighbor_cache()
861 		rt = ln->ln_rt;  in nd6_service_neighbor_cache()
865 		if (ln->ln_flags & ND6_LNF_TIMER_SKIP) {  in nd6_service_neighbor_cache()
867 			ln = next;  in nd6_service_neighbor_cache()
875 			    ln, rt);  in nd6_service_neighbor_cache()
880 		if ((struct llinfo_nd6 *)rt->rt_llinfo != ln) {  in nd6_service_neighbor_cache()
882 			    __func__, rt->rt_llinfo, ln);  in nd6_service_neighbor_cache()
890 			    rt, ln);  in nd6_service_neighbor_cache()
895 		ln->ln_flags |= ND6_LNF_TIMER_SKIP;  in nd6_service_neighbor_cache()
902 		if (ln->ln_expire == 0 || (rt->rt_flags & RTF_STATIC) ||  in nd6_service_neighbor_cache()
910 			if (ln->ln_state > ND6_LLINFO_INCOMPLETE) {  in nd6_service_neighbor_cache()
911 				ND6_CACHE_STATE_TRANSITION(ln, (short)ND6_LLINFO_STALE);  in nd6_service_neighbor_cache()
913 				ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_PURGE);  in nd6_service_neighbor_cache()
915 			ln_setexpire(ln, timenow);  in nd6_service_neighbor_cache()
924 		if (ln->ln_expire > timenow) {  in nd6_service_neighbor_cache()
925 			switch (ln->ln_state) {  in nd6_service_neighbor_cache()
934 			ln = next;  in nd6_service_neighbor_cache()
946 			ln = next;  in nd6_service_neighbor_cache()
956 		switch (ln->ln_state) {  in nd6_service_neighbor_cache()
958 			if (ln->ln_asked < nd6_mmaxtries) {  in nd6_service_neighbor_cache()
959 				ifnet_ref_t exclifp = ln->ln_exclifp;  in nd6_service_neighbor_cache()
960 				ln->ln_asked++;  in nd6_service_neighbor_cache()
961 				ln_setexpire(ln, timenow + retrans / 1000);  in nd6_service_neighbor_cache()
967 					    NULL, &dst->sin6_addr, ln);  in nd6_service_neighbor_cache()
970 					    &dst->sin6_addr, ln, NULL, 0);  in nd6_service_neighbor_cache()
976 				mbuf_ref_t m = ln->ln_hold;  in nd6_service_neighbor_cache()
977 				ln->ln_hold = NULL;  in nd6_service_neighbor_cache()
1031 			if (ln->ln_expire != 0) {  in nd6_service_neighbor_cache()
1032 				ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_STALE);  in nd6_service_neighbor_cache()
1033 				ln_setexpire(ln, timenow + nd6_gctimer);  in nd6_service_neighbor_cache()
1058 			if (ln->ln_expire != 0) {  in nd6_service_neighbor_cache()
1075 				ln->ln_asked = 1;  in nd6_service_neighbor_cache()
1076 				ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_PROBE);  in nd6_service_neighbor_cache()
1077 				ln_setexpire(ln, timenow + retrans / 1000);  in nd6_service_neighbor_cache()
1082 				    &dst->sin6_addr, ln, NULL, 0);  in nd6_service_neighbor_cache()
1088 			ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_STALE);         /* XXX */  in nd6_service_neighbor_cache()
1089 			ln_setexpire(ln, timenow + nd6_gctimer);  in nd6_service_neighbor_cache()
1095 			if (ln->ln_asked < nd6_umaxtries) {  in nd6_service_neighbor_cache()
1096 				ln->ln_asked++;  in nd6_service_neighbor_cache()
1097 				ln_setexpire(ln, timenow + retrans / 1000);  in nd6_service_neighbor_cache()
1102 				    &dst->sin6_addr, ln, NULL, 0);  in nd6_service_neighbor_cache()
1149 		ln = next;  in nd6_service_neighbor_cache()
1154 	ln = llinfo_nd6.ln_next;  in nd6_service_neighbor_cache()
1155 	while (ln != NULL && ln != &llinfo_nd6) {  in nd6_service_neighbor_cache()
1156 		rtentry_ref_t rt = ln->ln_rt;  in nd6_service_neighbor_cache()
1157 		struct llinfo_nd6 *__single next = ln->ln_next;  in nd6_service_neighbor_cache()
1160 		if (ln->ln_flags & ND6_LNF_TIMER_SKIP) {  in nd6_service_neighbor_cache()
1161 			ln->ln_flags &= ~ND6_LNF_TIMER_SKIP;  in nd6_service_neighbor_cache()
1164 		ln = next;  in nd6_service_neighbor_cache()
2236 	struct llinfo_nd6 *__single ln = NULL;  in nd6_purge_interface_llinfo()  local
2243 	ln = llinfo_nd6.ln_next;  in nd6_purge_interface_llinfo()
2244 	while (ln != NULL && ln != &llinfo_nd6) {  in nd6_purge_interface_llinfo()
2248 		nln = ln->ln_next;  in nd6_purge_interface_llinfo()
2249 		rt = ln->ln_rt;  in nd6_purge_interface_llinfo()
2273 		ln = nln;  in nd6_purge_interface_llinfo()
2415 				struct llinfo_nd6 *__single ln = rt->rt_llinfo;  in nd6_lookup()  local
2437 					ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_NOSTATE);  in nd6_lookup()
2439 					ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_REACHABLE);  in nd6_lookup()
2440 					ln_setexpire(ln, 0);  in nd6_lookup()
2611 	struct llinfo_nd6 *__single ln = NULL;  in nd6_free()  local
2621 	ln = rt->rt_llinfo;  in nd6_free()
2639 	if ((ln && ln->ln_router) || dr) {  in nd6_free()
2669 		ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_INCOMPLETE);  in nd6_free()
2706 	struct llinfo_nd6 *__single ln = rt->rt_llinfo;  in nd6_rtrequest()  local
2809 		    ((rt->rt_flags & RTF_LLINFO) && ln == NULL)) {  in nd6_rtrequest()
2824 				if (ln != NULL) {  in nd6_rtrequest()
2825 					ln_setexpire(ln,  in nd6_rtrequest()
2876 		if (ln != NULL) {  in nd6_rtrequest()
2883 		rt->rt_llinfo = ln = nd6_llinfo_alloc(Z_WAITOK);  in nd6_rtrequest()
2892 		ln->ln_rt = rt;  in nd6_rtrequest()
2905 			ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_REACHABLE);  in nd6_rtrequest()
2906 			ln_setexpire(ln, 0);  in nd6_rtrequest()
2912 			ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_NOSTATE);  in nd6_rtrequest()
2914 			ln_setexpire(ln, (ifp->if_eflags & IFEF_IPV6_ND6ALT) ?  in nd6_rtrequest()
2917 		LN_INSERTHEAD(ln);  in nd6_rtrequest()
2934 			for (i = 0; i < 10 && llinfo_nd6.ln_prev != ln; i++) {  in nd6_rtrequest()
2965 			ln_setexpire(ln, 0);  in nd6_rtrequest()
2966 			ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_REACHABLE);  in nd6_rtrequest()
3012 			ln_setexpire(ln, 0);  in nd6_rtrequest()
3013 			ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_REACHABLE);  in nd6_rtrequest()
3043 		if (ln == NULL) {  in nd6_rtrequest()
3074 		if (ln->ln_flags & ND6_LNF_IN_USE) {  in nd6_rtrequest()
3075 			LN_DEQUEUE(ln);  in nd6_rtrequest()
3086 		if (ln->ln_hold != NULL) {  in nd6_rtrequest()
3087 			m_freem_list(ln->ln_hold);  in nd6_rtrequest()
3088 			ln->ln_hold = NULL;  in nd6_rtrequest()
3327 		struct llinfo_nd6 *__single ln;  in nd6_ioctl()  local
3353 		ln = rt->rt_llinfo;  in nd6_ioctl()
3354 		nbi_32.state = ln->ln_state;  in nd6_ioctl()
3355 		nbi_32.asked = ln->ln_asked;  in nd6_ioctl()
3356 		nbi_32.isrouter = ln->ln_router;  in nd6_ioctl()
3357 		nbi_32.expire = (int)ln_getexpire(ln);  in nd6_ioctl()
3365 		struct llinfo_nd6 *__single ln;  in nd6_ioctl()  local
3391 		ln = rt->rt_llinfo;  in nd6_ioctl()
3392 		nbi_64.state = ln->ln_state;  in nd6_ioctl()
3393 		nbi_64.asked = ln->ln_asked;  in nd6_ioctl()
3394 		nbi_64.isrouter = ln->ln_router;  in nd6_ioctl()
3395 		nbi_64.expire = (int)ln_getexpire(ln);  in nd6_ioctl()
3510 	struct llinfo_nd6 *__single ln = NULL;  in nd6_cache_lladdr()  local
3568 	ln = (struct llinfo_nd6 *)rt->rt_llinfo;  in nd6_cache_lladdr()
3569 	if (ln == NULL) {  in nd6_cache_lladdr()
3642 		ln_setexpire(ln, 0);  in nd6_cache_lladdr()
3649 		ND6_CACHE_STATE_TRANSITION(ln, newstate);  in nd6_cache_lladdr()
3651 		if ((ln->ln_state == ND6_LLINFO_STALE) ||  in nd6_cache_lladdr()
3652 		    (ln->ln_state == ND6_LLINFO_REACHABLE)) {  in nd6_cache_lladdr()
3653 			mbuf_ref_t m = ln->ln_hold;  in nd6_cache_lladdr()
3660 			if (ln->ln_state == ND6_LLINFO_STALE) {  in nd6_cache_lladdr()
3661 				ln_setexpire(ln, timenow + nd6_gctimer);  in nd6_cache_lladdr()
3664 			ln->ln_hold = NULL;  in nd6_cache_lladdr()
3677 		} else if (ln->ln_state == ND6_LLINFO_INCOMPLETE) {  in nd6_cache_lladdr()
3679 			ln_setexpire(ln, timenow);  in nd6_cache_lladdr()
3719 			ln->ln_router = 0;  in nd6_cache_lladdr()
3729 			ln->ln_router = 1;  in nd6_cache_lladdr()
3731 			ln->ln_router = 0;  in nd6_cache_lladdr()
3738 		ln->ln_router = 0;  in nd6_cache_lladdr()
3746 			ln->ln_router = 1;  in nd6_cache_lladdr()
3763 		if (ln->ln_router || (rt->rt_flags & RTF_ROUTER)) {  in nd6_cache_lladdr()
3803 	if (do_update && ln->ln_router) {  in nd6_cache_lladdr()
3878 	struct llinfo_nd6 *__single ln = NULL;  in nd6_output_list()  local
4093 		ln = rt->rt_llinfo;  in nd6_output_list()
4127 				ln = rt->rt_llinfo;  in nd6_output_list()
4134 	if (!ln || !rt) {  in nd6_output_list()
4148 			    (uint64_t)VM_KERNEL_ADDRPERM(ln),  in nd6_output_list()
4162 	    ln->ln_state < ND6_LLINFO_REACHABLE) {  in nd6_output_list()
4163 		ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_STALE);  in nd6_output_list()
4164 		ln_setexpire(ln, timenow + nd6_gctimer);  in nd6_output_list()
4174 	if (ln->ln_state == ND6_LLINFO_STALE) {  in nd6_output_list()
4175 		ln->ln_asked = 0;  in nd6_output_list()
4176 		ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_DELAY);  in nd6_output_list()
4177 		ln_setexpire(ln, timenow + nd6_delay);  in nd6_output_list()
4187 	if (ln->ln_state > ND6_LLINFO_INCOMPLETE) {  in nd6_output_list()
4197 		if (ln->ln_state == ND6_LLINFO_DELAY ||  in nd6_output_list()
4198 		    (ln->ln_expire != 0 && ip6_neighborgcthresh > 0 &&  in nd6_output_list()
4201 			if (ln->ln_state == ND6_LLINFO_DELAY) {  in nd6_output_list()
4204 			if (ln->ln_expire != 0 && ip6_neighborgcthresh > 0 &&  in nd6_output_list()
4207 				if (ln->ln_flags & ND6_LNF_IN_USE) {  in nd6_output_list()
4208 					LN_DEQUEUE(ln);  in nd6_output_list()
4209 					LN_INSERTHEAD(ln);  in nd6_output_list()
4224 		ln->ln_exclifp = ((origifp == ifp) ? NULL : origifp);  in nd6_output_list()
4236 	if (ln->ln_state == ND6_LLINFO_NOSTATE) {  in nd6_output_list()
4237 		ND6_CACHE_STATE_TRANSITION(ln, ND6_LLINFO_INCOMPLETE);  in nd6_output_list()
4239 	if (ln->ln_hold) {  in nd6_output_list()
4240 		m_freem_list(ln->ln_hold);  in nd6_output_list()
4242 	ln->ln_hold = m0;  in nd6_output_list()
4243 	if (!ND6_LLINFO_PERMANENT(ln) && ln->ln_asked == 0) {  in nd6_output_list()
4244 		ln->ln_asked++;  in nd6_output_list()
4248 		ln_setexpire(ln, timenow + ndi->retrans / 1000);  in nd6_output_list()
4254 			    &dst->sin6_addr, ln);  in nd6_output_list()
4256 			nd6_ns_output(ifp, NULL, &dst->sin6_addr, ln, NULL, 0);  in nd6_output_list()
4272 	if (ln->ln_expire != 0 && ip6_neighborgcthresh > 0 &&  in nd6_output_list()
4276 		if (ln->ln_flags & ND6_LNF_IN_USE) {  in nd6_output_list()
4277 			LN_DEQUEUE(ln);  in nd6_output_list()
4278 			LN_INSERTHEAD(ln);  in nd6_output_list()