ret = stc_plugin_firewall_remove_rule(parameters);
if (ret != STC_ERROR_NONE) {
STC_FIREWALL_DBUS_REPLY_ERROR(invocation, ret);
ret = stc_plugin_firewall_remove_rule(parameters);
if (ret != STC_ERROR_NONE) {
STC_FIREWALL_DBUS_REPLY_ERROR(invocation, ret);