Put Introspect method on the correct interface,

dhcpcd-dbus.c

 /*
  * dhcpcd-dbus
  * Copyright 2009 Roy Marples <roy@marples.name>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 454 matching lines @@
         dbus_connection_send(con, reply, NULL);
         dbus_message_unref(reply);
         return DBUS_HANDLER_RESULT_HANDLED;
 }
 
 static DBusHandlerResult
 msg_handler(DBusConnection *con, DBusMessage *msg, _unused void *data)
 {
 #define IsMethod(msg, method) \
         dbus_message_is_method_call(msg, DHCPCD_SERVICE, method)
-        if (IsMethod(msg, "Introspect")) {
+        if (dbus_message_is_method_call(msg, DBUS_INTERFACE_INTROSPECTABLE,
+                                        "Introspect")) {
                 return introspect(con, msg);
         } else if (IsMethod(msg, "GetVersion")) {
                 return version(con, msg, VERSION);
         } else if (IsMethod(msg, "GetInterfaces")) {
                 return dhcpcd_get_interfaces(con, msg);
         } else if (IsMethod(msg, "GetStatus")) {
                 return return_status(con, msg);
         } else if (IsMethod(msg, "Rebind")) {
                 bind_interface(ifaces);         /* XXX */
                 return dbus_ack(con, msg);
@@ skipping 131 matching lines @@
 run_script(const struct interface *ifp)
 {
         syslog(LOG_DEBUG, "executing `%s', reason %s",
             ifp->name, ifp->state->reason);
 #if 0
         /* push state over d-bus */
         dhcpcd_dbus_configure(ifp, ifp->state->reason);
 #endif
         return 0;
 }