jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
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
35#endif
36
37/* TUNSETIFF ifr flags */
38#define IFF_TAP 0x0002
39#define IFF_NO_PI 0x1000
40#define IFF_ONE_QUEUE 0x2000
41#define IFF_VNET_HDR 0x4000
42#define IFF_MULTI_QUEUE 0x0100
43#define IFF_ATTACH_QUEUE 0x0200
44#define IFF_DETACH_QUEUE 0x0400
45
46/* Features for GSO (TUNSETOFFLOAD). */
47#define TUN_F_CSUM 0x01 /* You can hand me unchecksummed packets. */
48#define TUN_F_TSO4 0x02 /* I can handle TSO for IPv4 packets */
49#define TUN_F_TSO6 0x04 /* I can handle TSO for IPv6 packets */
50#define TUN_F_TSO_ECN 0x08 /* I can handle TSO with ECN bits. */
51#define TUN_F_UFO 0x10 /* I can handle UFO packets */
52
53#endif /* QEMU_TAP_LINUX_H */