LXR qemu/net/tap-linux.h

   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
  54#endif /* QEMU_TAP_LINUX_H */
  55