TUN_F_TSO4 87 include/uapi/linux/if_tun.h #define TUN_F_TSO4 0x02 /* I can handle TSO for IPv4 packets */ TUN_F_TSO4 87 tools/include/uapi/linux/if_tun.h #define TUN_F_TSO4 0x02 /* I can handle TSO for IPv4 packets */