Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
[qemu.git] / 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
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 */