networkd: add link-sense and simplify state-machine a bit

This listens to rtnetlink for changes to IFF_UP and IFF_LOWER_UP (link sense). The latter
is simply logged at the moment, but will be useful once we add dhcp support.

1 files changed, 5 insertions, 3 deletions

diff --git a/src/network/networkd-bridge.c b/src/network/networkd-bridge.c
index e9dceab894..1704f65ee6 100644
--- a/src/network/networkd-bridge.c
+++ b/src/network/networkd-bridge.c
@@ -132,15 +132,17 @@ static int bridge_create_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userda
         r = sd_rtnl_message_get_errno(m);
         if (r < 0) {
                 log_warning("Bridge '%s' failed: %s", bridge->name, strerror(-r));
-                return bridge_enter_failed(bridge);
+                bridge_enter_failed(bridge);
+
+                return 1;
         }
 
         if (bridge->link)
-                return bridge_enter_ready(bridge);
+                bridge_enter_ready(bridge);
 
         bridge->state = BRIDGE_STATE_CREATED;
 
-        return 0;
+        return 1;
 }
 
 static int bridge_create(Bridge *bridge) {