blob: 34ee3ee707b568b89416780270a1e3ac6ed867c3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/* $OpenBSD: if_tun.h,v 1.3 1996/04/21 22:28:36 deraadt Exp $ */
/*
* Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
* Nottingham University 1987.
*
* This source may be freely distributed, however I would be interested
* in any changes that are made.
*
* This driver takes packets off the IP i/f and hands them up to a
* user process to have it's wicked way with. This driver has it's
* roots in a similar driver written by Phil Cockcroft (formerly) at
* UCL. This driver is based much more on read/write/select mode of
* operation though.
*
* from: @Header: if_tnreg.h,v 1.1.2.1 1992/07/16 22:39:16 friedl Exp
*/
#ifndef _NET_IF_TUN_H_
#define _NET_IF_TUN_H_
struct tun_softc {
u_short tun_flags; /* misc flags */
#define TUN_OPEN 0x0001
#define TUN_INITED 0x0002
#define TUN_RCOLL 0x0004
#define TUN_IASET 0x0008
#define TUN_DSTADDR 0x0010
#define TUN_RWAIT 0x0040
#define TUN_ASYNC 0x0080
#define TUN_NBIO 0x0100
#define TUN_READY (TUN_OPEN | TUN_INITED | TUN_IASET)
struct ifnet tun_if; /* the interface */
int tun_pgrp; /* the process group - if any */
struct selinfo tun_rsel; /* read select */
struct selinfo tun_wsel; /* write select (not used) */
#if NBPFILTER > 0
caddr_t tun_bpf;
#endif
};
struct tunnel_header
{
u_char tun_af; /* adress family */
};
/* Maximum packet size */
#define TUNMTU 3000
/* ioctl's for get/set debug */
#define TUNSDEBUG _IOW('t', 89, int)
#define TUNGDEBUG _IOR('t', 90, int)
/* iface info */
struct tuninfo
{
u_int mtu;
u_short type;
u_int baudrate;
};
#define TUNSIFINFO _IOW('t', 91, struct tuninfo)
#define TUNGIFINFO _IOR('t', 92, struct tuninfo)
#endif /* !_NET_IF_TUN_H_ */
|
