55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* $NetBSD: if_tun.h,v 1.7 1998/01/05 05:08:43 perry 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_PREPADDR 0x0200
|
|
|
|
#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
|
|
};
|
|
|
|
/* Maximum packet size */
|
|
#define TUNMTU 1500
|
|
|
|
/* ioctl's for get/set debug */
|
|
#define TUNSDEBUG _IOW('t', 90, int)
|
|
#define TUNGDEBUG _IOR('t', 89, int)
|
|
#define TUNSIFMODE _IOW('t', 88, int)
|
|
#define TUNSLMODE _IOW('t', 87, int)
|
|
|
|
#endif /* !_NET_IF_TUN_H_ */
|