0,0 → 1,58 |
/*!\file net/if_tun.h |
* Interface tunneling. |
*/ |
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/* $NetBSD: if_tun.h,v 1.6 1996/06/25 22:15:18 pk Exp $ */ |
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/* |
* 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. |
* |
* : $Header: if_tnreg.h,v 1.1.2.1 1992/07/16 22:39:16 friedl Exp |
*/ |
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#ifndef __NET_IF_TUN_H |
#define __NET_IF_TUN_H |
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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 |
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#define TUN_READY (TUN_OPEN | TUN_INITED | TUN_IASET) |
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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 |
}; |
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/* Maximum packet size */ |
#define TUNMTU 1500 |
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/* 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) |
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#endif |