if_tun.h revision 6735
16735Samurai/* $NetBSD: if_tun.h,v 1.5 1994/06/29 06:36:27 cgd Exp $ */ 26735Samurai 36053Samurai/* 46053Samurai * Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk> 56053Samurai * Nottingham University 1987. 66053Samurai * 76053Samurai * This source may be freely distributed, however I would be interested 86053Samurai * in any changes that are made. 96053Samurai * 106053Samurai * This driver takes packets off the IP i/f and hands them up to a 116053Samurai * user process to have it's wicked way with. This driver has it's 126053Samurai * roots in a similar driver written by Phil Cockcroft (formerly) at 136053Samurai * UCL. This driver is based much more on read/write/select mode of 146053Samurai * operation though. 156053Samurai * 166735Samurai * : $Header: if_tnreg.h,v 1.1.2.1 1992/07/16 22:39:16 friedl Exp 176053Samurai */ 186053Samurai 196053Samurai#ifndef _NET_IF_TUN_H_ 206053Samurai#define _NET_IF_TUN_H_ 216053Samurai 226053Samuraistruct tun_softc { 236053Samurai u_short tun_flags; /* misc flags */ 246053Samurai#define TUN_OPEN 0x0001 256053Samurai#define TUN_INITED 0x0002 266053Samurai#define TUN_RCOLL 0x0004 276053Samurai#define TUN_IASET 0x0008 286053Samurai#define TUN_DSTADDR 0x0010 296053Samurai#define TUN_RWAIT 0x0040 306053Samurai#define TUN_ASYNC 0x0080 316053Samurai#define TUN_NBIO 0x0100 326735Samurai 336735Samurai#define TUN_READY (TUN_OPEN | TUN_INITED | TUN_IASET) 346735Samurai 356053Samurai struct ifnet tun_if; /* the interface */ 366053Samurai int tun_pgrp; /* the process group - if any */ 376735Samurai struct selinfo tun_rsel; /* read select */ 386735Samurai struct selinfo tun_wsel; /* write select (not used) */ 396053Samurai#if NBPFILTER > 0 406053Samurai caddr_t tun_bpf; 416053Samurai#endif 426053Samurai}; 436053Samurai 446053Samurai/* Maximum packet size */ 456053Samurai#define TUNMTU 1500 466053Samurai 476735Samuraistruct tuninfo { 486735Samurai int baudrate; /* linespeed */ 496735Samurai short mtu; /* maximum transmission unit */ 506735Samurai u_char type; /* ethernet, tokenring, etc. */ 516735Samurai u_char dummy; /* place holder */ 526735Samurai}; 536735Samurai 546053Samurai/* ioctl's for get/set debug */ 556053Samurai#define TUNSDEBUG _IOW('t', 90, int) 566053Samurai#define TUNGDEBUG _IOR('t', 89, int) 576053Samurai#define TUNSIFINFO _IOW('t', 91, struct tuninfo) 586053Samurai#define TUNGIFINFO _IOR('t', 92, struct tuninfo) 596053Samurai 606053Samurai#endif /* !_NET_IF_TUN_H_ */ 61