extern struct vconn_class tcp_vconn_class;
extern struct vconn_class ptcp_vconn_class;
+extern struct vconn_class unix_vconn_class;
+extern struct vconn_class punix_vconn_class;
#ifdef HAVE_OPENSSL
extern struct vconn_class ssl_vconn_class;
extern struct vconn_class pssl_vconn_class;