1 /* 2 * Universal TUN/TAP device driver. 3 * Copyright (C) 1999-2000 Maxim Krasnyansky <max_mk@yahoo.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 */ 15 16 #ifndef QEMU_TAP_LINUX_H 17 #define QEMU_TAP_LINUX_H 18 19 #include <stdint.h> 20 #ifdef __linux__ 21 22 #include <linux/ioctl.h> 23 24 /* Ioctl defines */ 25 #define TUNSETIFF _IOW('T', 202, int) 26 #define TUNGETFEATURES _IOR('T', 207, unsigned int) 27 #define TUNSETOFFLOAD _IOW('T', 208, unsigned int) 28 #define TUNGETIFF _IOR('T', 210, unsigned int) 29 #define TUNSETSNDBUF _IOW('T', 212, int) 30 #define TUNGETVNETHDRSZ _IOR('T', 215, int) 31 #define TUNSETVNETHDRSZ _IOW('T', 216, int) 32 #define TUNSETQUEUE _IOW('T', 217, int) 33 #define TUNSETVNETLE _IOW('T', 220, int) 34 #define TUNSETVNETBE _IOW('T', 222, int) 35 36 #endif 37 38 /* TUNSETIFF ifr flags */ 39 #define IFF_TAP 0x0002 40 #define IFF_NO_PI 0x1000 41 #define IFF_ONE_QUEUE 0x2000 42 #define IFF_VNET_HDR 0x4000 43 #define IFF_MULTI_QUEUE 0x0100 44 #define IFF_ATTACH_QUEUE 0x0200 45 #define IFF_DETACH_QUEUE 0x0400 46 47 /* Features for GSO (TUNSETOFFLOAD). */ 48 #define TUN_F_CSUM 0x01 /* You can hand me unchecksummed packets. */ 49 #define TUN_F_TSO4 0x02 /* I can handle TSO for IPv4 packets */ 50 #define TUN_F_TSO6 0x04 /* I can handle TSO for IPv6 packets */ 51 #define TUN_F_TSO_ECN 0x08 /* I can handle TSO with ECN bits. */ 52 #define TUN_F_UFO 0x10 /* I can handle UFO packets */ 53 54 #endif /* QEMU_TAP_H */ 55