| 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 | #ifdef __linux__ |
| 20 | |
| 21 | #include <linux/ioctl.h> |
| 22 | |
| 23 | /* Ioctl defines */ |
| 24 | #define TUNSETIFF _IOW('T', 202, int) |
| 25 | #define TUNGETFEATURES _IOR('T', 207, unsigned int) |
| 26 | #define TUNSETOFFLOAD _IOW('T', 208, unsigned int) |
| 27 | #define TUNGETIFF _IOR('T', 210, unsigned int) |
| 28 | #define TUNSETSNDBUF _IOW('T', 212, int) |
| 29 | #define TUNGETVNETHDRSZ _IOR('T', 215, int) |
| 30 | #define TUNSETVNETHDRSZ _IOW('T', 216, int) |
| 31 | #define TUNSETQUEUE _IOW('T', 217, int) |
| 32 | #define TUNSETVNETLE _IOW('T', 220, int) |
| 33 | #define TUNSETVNETBE _IOW('T', 222, int) |
| 34 | #define TUNSETSTEERINGEBPF _IOR('T', 224, 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 | #define TUN_F_USO4 0x20 /* I can handle USO for IPv4 packets */ |
| 54 | #define TUN_F_USO6 0x40 /* I can handle USO for IPv6 packets */ |
| 55 | |
| 56 | /* I can handle TSO/USO for UDP tunneled packets */ |
| 57 | #define TUN_F_UDP_TUNNEL_GSO 0x080 |
| 58 | |
| 59 | /* |
| 60 | * I can handle TSO/USO for UDP tunneled packets requiring csum offload for |
| 61 | * the outer header |
| 62 | */ |
| 63 | #define TUN_F_UDP_TUNNEL_GSO_CSUM 0x100 |
| 64 | |
| 65 | #endif /* QEMU_TAP_LINUX_H */ |