#define SIOCGETTUNNEL (SIOCDEVPRIVATE + 0)
#define SIOCADDTUNNEL (SIOCDEVPRIVATE + 1)
#define SIOCDELTUNNEL (SIOCDEVPRIVATE + 2)
#define SIOCGETTUNNEL (SIOCDEVPRIVATE + 0)
#define SIOCADDTUNNEL (SIOCDEVPRIVATE + 1)
#define SIOCDELTUNNEL (SIOCDEVPRIVATE + 2)