248 static struct rt *
249 find_route(struct rt_head *rts, const struct rt *r, const struct rt *srt)  in find_route()
251 	struct rt *rt;  in find_route()  local
255 	TAILQ_FOREACH(rt, rts, next) {  in find_route()
256 		if (rt->dest.s_addr == r->dest.s_addr &&  in find_route()
258 		    (srt || (r->iface == NULL || rt->iface == NULL ||  in find_route()
259 		    rt->iface->metric == r->iface->metric)) &&  in find_route()
261                     (!srt || srt != rt) &&  in find_route()
262 		    rt->net.s_addr == r->net.s_addr)  in find_route()
263 			return rt;  in find_route()
269 desc_route(const char *cmd, const struct rt *rt)  in desc_route()  argument
272 	struct dhcpcd_ctx *ctx = rt->iface ? rt->iface->ctx : NULL;  in desc_route()
273 	const char *ifname = rt->iface ? rt->iface->name : NULL;  in desc_route()
275 	strlcpy(addr, inet_ntoa(rt->dest), sizeof(addr));  in desc_route()
276 	if (rt->net.s_addr == htonl(INADDR_BROADCAST) &&  in desc_route()
277 	    rt->gate.s_addr == htonl(INADDR_ANY))  in desc_route()
280 	else if (rt->net.s_addr == htonl(INADDR_BROADCAST))  in desc_route()
282 		    ifname, cmd, addr, inet_ntoa(rt->gate));  in desc_route()
283 	else if (rt->gate.s_addr == htonl(INADDR_ANY))  in desc_route()
285 		    ifname, cmd, addr, inet_ntocidr(rt->net));  in desc_route()
286 	else if (rt->dest.s_addr == htonl(INADDR_ANY) &&  in desc_route()
287 	    rt->net.s_addr == htonl(INADDR_ANY))  in desc_route()
289 		    ifname, cmd, inet_ntoa(rt->gate));  in desc_route()
292 		    ifname, cmd, addr, inet_ntocidr(rt->net),  in desc_route()
293 		    inet_ntoa(rt->gate));  in desc_route()
296 static struct rt *
297 ipv4_findrt(struct dhcpcd_ctx *ctx, const struct rt *rt, int flags)  in ipv4_findrt()  argument
299 	struct rt *r;  in ipv4_findrt()
304 		if (rt->dest.s_addr == r->dest.s_addr &&  in ipv4_findrt()
306 		    rt->iface == r->iface &&  in ipv4_findrt()
307 		    (!flags || rt->metric == r->metric) &&  in ipv4_findrt()
309 		    (!flags || rt->iface == r->iface) &&  in ipv4_findrt()
311 		    rt->net.s_addr == r->net.s_addr)  in ipv4_findrt()
320 	struct rt *rt;  in ipv4_freerts()  local
322 	while ((rt = TAILQ_FIRST(routes))) {  in ipv4_freerts()
323 		TAILQ_REMOVE(routes, rt, next);  in ipv4_freerts()
324 		free(rt);  in ipv4_freerts()
331 ipv4_handlert(struct dhcpcd_ctx *ctx, int cmd, struct rt *rt)  in ipv4_handlert()  argument
333 	struct rt *f;  in ipv4_handlert()
338 	f = ipv4_findrt(ctx, rt, 1);  in ipv4_handlert()
344 			*f = *rt;  in ipv4_handlert()
355 		if ((f = find_route(ctx->ipv4_routes, rt, NULL))) {  in ipv4_handlert()
368 nc_route(struct rt *ort, struct rt *nrt)  in nc_route()
428 d_route(struct rt *rt)  in d_route()  argument
432 	desc_route("deleting", rt);  in d_route()
433 	retval = if_route(RTM_DELETE, rt);  in d_route()
435 		logger(rt->iface->ctx, LOG_ERR,  in d_route()
436 		    "%s: if_delroute: %m", rt->iface->name);  in d_route()
441 add_subnet_route(struct rt_head *rt, const struct interface *ifp)  in add_subnet_route()  argument
444 	struct rt *r;  in add_subnet_route()
446 	if (rt == NULL) /* earlier malloc failed */  in add_subnet_route()
452 		return rt;  in add_subnet_route()
456 		return rt;  in add_subnet_route()
461 		ipv4_freeroutes(rt);  in add_subnet_route()
468 	TAILQ_INSERT_HEAD(rt, r, next);  in add_subnet_route()
469 	return rt;  in add_subnet_route()
474 add_loopback_route(struct rt_head *rt, const struct interface *ifp)  in add_loopback_route()  argument
476 	struct rt *r;  in add_loopback_route()
479 	if (rt == NULL) /* earlier malloc failed */  in add_loopback_route()
484 		return rt;  in add_loopback_route()
489 		ipv4_freeroutes(rt);  in add_loopback_route()
495 	TAILQ_INSERT_HEAD(rt, r, next);  in add_loopback_route()
496 	return rt;  in add_loopback_route()
504 	struct rt *rt, *r = NULL;  in get_routes()  local
509 		TAILQ_FOREACH(rt, ifp->options->routes, next) {  in get_routes()
510 			if (rt->gate.s_addr == 0)  in get_routes()
518 			memcpy(r, rt, sizeof(*r));  in get_routes()
531 massage_host_routes(struct rt_head *rt, const struct interface *ifp)  in massage_host_routes()  argument
533 	struct rt *r;  in massage_host_routes()
535 	if (rt) {  in massage_host_routes()
536 		TAILQ_FOREACH(r, rt, next) {  in massage_host_routes()
545 	return rt;  in massage_host_routes()
550 add_destination_route(struct rt_head *rt, const struct interface *ifp)  in add_destination_route()  argument
552 	struct rt *r;  in add_destination_route()
554 	if (rt == NULL || /* failed a malloc earlier probably */  in add_destination_route()
557 		return rt;  in add_destination_route()
562 		ipv4_freeroutes(rt);  in add_destination_route()
568 	TAILQ_INSERT_HEAD(rt, r, next);  in add_destination_route()
569 	return rt;  in add_destination_route()
575 add_router_host_route(struct rt_head *rt, const struct interface *ifp)  in add_router_host_route()  argument
577 	struct rt *rtp, *rtn;  in add_router_host_route()
582 	if (rt == NULL) /* earlier malloc failed */  in add_router_host_route()
585 	TAILQ_FOREACH(rtp, rt, next) {  in add_router_host_route()
589 		TAILQ_FOREACH(rtn, rt, next) {  in add_router_host_route()
634 			ipv4_freeroutes(rt);  in add_router_host_route()
642 	return rt;  in add_router_host_route()
651 	struct rt *or, *rt, *rtn;  in ipv4_buildroutes()  local
682 		TAILQ_FOREACH_SAFE(rt, dnr, next, rtn) {  in ipv4_buildroutes()
683 			rt->iface = ifp;  in ipv4_buildroutes()
685 			rt->metric = ifp->metric;  in ipv4_buildroutes()
687 			rt->flags = state->added & STATE_FAKE;  in ipv4_buildroutes()
689 			if ((find_route(nrs, rt, NULL)) != NULL)  in ipv4_buildroutes()
691 			rt->src.s_addr = state->addr.s_addr;  in ipv4_buildroutes()
693 			if ((or = find_route(ctx->ipv4_routes, rt, NULL))) {  in ipv4_buildroutes()
699 				    rt->metric != or->metric ||  in ipv4_buildroutes()
702 				    rt->gate.s_addr != or->gate.s_addr)  in ipv4_buildroutes()
704 					if (c_route(or, rt) != 0)  in ipv4_buildroutes()
711 					or = ipv4_findrt(ctx, rt, 1);  in ipv4_buildroutes()
713 					    or->gate.s_addr != rt->gate.s_addr)  in ipv4_buildroutes()
716 					if (n_route(rt) != 0)  in ipv4_buildroutes()
720 			rt->flags |= STATE_ADDED;  in ipv4_buildroutes()
721 			TAILQ_REMOVE(dnr, rt, next);  in ipv4_buildroutes()
722 			TAILQ_INSERT_TAIL(nrs, rt, next);  in ipv4_buildroutes()
729 		TAILQ_FOREACH(rt, ctx->ipv4_routes, next) {  in ipv4_buildroutes()
730 			if (find_route(nrs, rt, NULL) == NULL &&  in ipv4_buildroutes()
731 			    (rt->iface->options->options &  in ipv4_buildroutes()
734 				d_route(rt);  in ipv4_buildroutes()