Avoid code duplication in general network config

rust/agama-server/src/network/nm/dbus.rs

@@ -66,32 +66,10 @@ pub fn connection_to_dbus<'a>(
     result.insert("ipv6", ip_config_to_ipv6_dbus(&conn.ip_config));
     result.insert("match", match_config_to_dbus(&conn.match_config));
 
-    if conn.is_ethernet() {
-        let ethernet_config = HashMap::from([
-            (
-                "assigned-mac-address",
-                Value::new(conn.mac_address.to_string()),
-            ),
-            ("mtu", Value::new(conn.mtu)),
-        ]);
-        result.insert(ETHERNET_KEY, ethernet_config);
-    }
-
     match &conn.config {
         ConnectionConfig::Wireless(wireless) => {
             connection_dbus.insert("type", WIRELESS_KEY.into());
-            let mut wireless_dbus = wireless_config_to_dbus(wireless);
-            wireless_dbus
-                .get_mut(WIRELESS_KEY)
-                .unwrap()
-                .extend(HashMap::from([
-                    ("mtu", Value::new(conn.mtu)),
-                    (
-                        "assigned-mac-address",
-                        Value::new(conn.mac_address.to_string()),
-                    ),
-                ]));
-
+            let wireless_dbus = wireless_config_to_dbus(wireless);
             result.extend(wireless_dbus);
         }
         ConnectionConfig::Bond(bond) => {
@@ -119,6 +97,22 @@ pub fn connection_to_dbus<'a>(
         _ => {}
     }
 
+    let general_conn_config = HashMap::from([
+        (
+            "assigned-mac-address",
+            Value::new(conn.mac_address.to_string()),
+        ),
+        ("mtu", Value::new(conn.mtu)),
+    ]);
+    if conn.is_ethernet() {
+        result.insert(ETHERNET_KEY, general_conn_config);
+    } else if let ConnectionConfig::Wireless(_) = conn.config {
+        result
+            .get_mut(WIRELESS_KEY)
+            .unwrap()
+            .extend(general_conn_config);
+    }
+
     match &conn.port_config {
         PortConfig::Bridge(bridge_port) => {
             result.insert(BRIDGE_PORT_KEY, bridge_port_config_to_dbus(bridge_port));