+ _cleanup_free_ char *kind_string = NULL;
+ char *p;
+ NetDev *netdev;
+ NetDevKind kind;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ kind_string = strdup(lvalue);
+ if (!kind_string)
+ return log_oom();
+
+ /* the keys are CamelCase versions of the kind */
+ for (p = kind_string; *p; p++)
+ *p = tolower(*p);
+
+ kind = netdev_kind_from_string(kind_string);
+ if (kind == _NETDEV_KIND_INVALID) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "Invalid NetDev kind: %s", lvalue);
+ return 0;
+ }
+
+ r = netdev_get(network->manager, rvalue, &netdev);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "%s could not be found, ignoring assignment: %s", lvalue, rvalue);
+ return 0;
+ }
+
+ if (netdev->kind != kind) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "NetDev is not a %s, ignoring assignment: %s", lvalue, rvalue);
+ return 0;
+ }
+
+ switch (kind) {
+ case NETDEV_KIND_BRIDGE:
+ network->bridge = netdev;
+
+ break;
+ case NETDEV_KIND_BOND:
+ network->bond = netdev;
+
+ break;
+ case NETDEV_KIND_VLAN:
+ case NETDEV_KIND_MACVLAN:
+ case NETDEV_KIND_VXLAN:
+ r = hashmap_put(network->stacked_netdevs, netdev->ifname, netdev);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+ "Can not add VLAN '%s' to network: %s",
+ rvalue, strerror(-r));
+ return 0;
+ }
+
+ break;
+ default:
+ assert_not_reached("Can not parse NetDev");
+ }
+
+ netdev_ref(netdev);
+
+ return 0;
+}
+
+int config_parse_tunnel(const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+ Network *network = userdata;
+ NetDev *netdev;