Since we'll need to keep an internal RTNL socket for DHCPv6
functionality anyway, change l_netconfig_apply_rtnl's signature to not
require an rtnl parameter.
---
 ell/netconfig.c | 34 ++++++++++++++++++++--------------
 ell/netconfig.h |  3 +--
 2 files changed, 21 insertions(+), 16 deletions(-)

diff --git a/ell/netconfig.c b/ell/netconfig.c
index aee56a2..724cb38 100644
--- a/ell/netconfig.c
+++ b/ell/netconfig.c
@@ -63,6 +63,7 @@ struct l_netconfig {
 	char **v6_dns_override;
 	char **v6_domain_names_override;
 
+	struct l_netlink *rtnl;
 	bool started;
 	struct l_idle *do_static_work;
 	bool v4_configured;
@@ -725,8 +726,13 @@ static void netconfig_icmp6_event_handler(struct l_icmp6_client *client,
 LIB_EXPORT struct l_netconfig *l_netconfig_new(uint32_t ifindex)
 {
 	struct l_netconfig *nc;
+	struct l_netlink *rtnl = l_netlink_new(NETLINK_ROUTE);
+
+	if (!rtnl)
+		return NULL;
 
 	nc = l_new(struct l_netconfig, 1);
+	nc->rtnl = rtnl;
 	nc->ifindex = ifindex;
 	nc->v4_enabled = true;
 
@@ -784,6 +790,7 @@ LIB_EXPORT void l_netconfig_destroy(struct l_netconfig *netconfig)
 	l_queue_destroy(netconfig->routes.added, NULL);
 	l_queue_destroy(netconfig->routes.updated, NULL);
 	l_queue_destroy(netconfig->routes.removed, NULL);
+	l_netlink_destroy(netconfig->rtnl);
 	l_free(netconfig);
 }
 
@@ -1188,42 +1195,41 @@ LIB_EXPORT void l_netconfig_set_event_handler(struct l_netconfig *netconfig,
 	netconfig->handler.destroy = destroy;
 }
 
-LIB_EXPORT void l_netconfig_apply_rtnl(struct l_netconfig *netconfig,
-					struct l_netlink *rtnl)
+LIB_EXPORT void l_netconfig_apply_rtnl(struct l_netconfig *netconfig)
 {
 	const struct l_queue_entry *entry;
 
 	for (entry = l_queue_get_entries(netconfig->addresses.removed); entry;
 			entry = entry->next)
-		l_rtnl_ifaddr_delete(rtnl, netconfig->ifindex, entry->data,
-					NULL, NULL, NULL);
+		l_rtnl_ifaddr_delete(netconfig->rtnl, netconfig->ifindex,
+					entry->data, NULL, NULL, NULL);
 
 	for (entry = l_queue_get_entries(netconfig->addresses.added); entry;
 			entry = entry->next)
-		l_rtnl_ifaddr_add(rtnl, netconfig->ifindex, entry->data,
-					NULL, NULL, NULL);
+		l_rtnl_ifaddr_add(netconfig->rtnl, netconfig->ifindex,
+					entry->data, NULL, NULL, NULL);
 
 	/* We can use l_rtnl_ifaddr_add here since that uses NLM_F_REPLACE */
 	for (entry = l_queue_get_entries(netconfig->addresses.updated); entry;
 			entry = entry->next)
-		l_rtnl_ifaddr_add(rtnl, netconfig->ifindex, entry->data,
-					NULL, NULL, NULL);
+		l_rtnl_ifaddr_add(netconfig->rtnl, netconfig->ifindex,
+					entry->data, NULL, NULL, NULL);
 
 	for (entry = l_queue_get_entries(netconfig->routes.removed); entry;
 			entry = entry->next)
-		l_rtnl_route_delete(rtnl, netconfig->ifindex, entry->data,
-					NULL, NULL, NULL);
+		l_rtnl_route_delete(netconfig->rtnl, netconfig->ifindex,
+					entry->data, NULL, NULL, NULL);
 
 	for (entry = l_queue_get_entries(netconfig->routes.added); entry;
 			entry = entry->next)
-		l_rtnl_route_add(rtnl, netconfig->ifindex, entry->data,
-					NULL, NULL, NULL);
+		l_rtnl_route_add(netconfig->rtnl, netconfig->ifindex,
+					entry->data, NULL, NULL, NULL);
 
 	/* We can use l_rtnl_route_add here since that uses NLM_F_REPLACE */
 	for (entry = l_queue_get_entries(netconfig->routes.updated); entry;
 			entry = entry->next)
-		l_rtnl_route_add(rtnl, netconfig->ifindex, entry->data,
-					NULL, NULL, NULL);
+		l_rtnl_route_add(netconfig->rtnl, netconfig->ifindex,
+					entry->data, NULL, NULL, NULL);
 }
 
 LIB_EXPORT const struct l_queue_entry *l_netconfig_get_addresses(
diff --git a/ell/netconfig.h b/ell/netconfig.h
index d58dda1..874491f 100644
--- a/ell/netconfig.h
+++ b/ell/netconfig.h
@@ -81,8 +81,7 @@ void l_netconfig_set_event_handler(struct l_netconfig *netconfig,
 					void *user_data,
 					l_netconfig_destroy_cb_t destroy);
 
-void l_netconfig_apply_rtnl(struct l_netconfig *netconfig,
-				struct l_netlink *rtnl);
+void l_netconfig_apply_rtnl(struct l_netconfig *netconfig);
 const struct l_queue_entry *l_netconfig_get_addresses(
 				struct l_netconfig *netconfig,
 				const struct l_queue_entry **out_added,
-- 
2.32.0