153c9f6c0SAtsushi Murai /* $NetBSD: if_tun.h,v 1.5 1994/06/29 06:36:27 cgd Exp $ */ 253c9f6c0SAtsushi Murai 3b74038e1SAtsushi Murai /* 4b74038e1SAtsushi Murai * Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk> 5b74038e1SAtsushi Murai * Nottingham University 1987. 6b74038e1SAtsushi Murai * 7b74038e1SAtsushi Murai * This source may be freely distributed, however I would be interested 8b74038e1SAtsushi Murai * in any changes that are made. 9b74038e1SAtsushi Murai * 10b74038e1SAtsushi Murai * This driver takes packets off the IP i/f and hands them up to a 11dc733423SDag-Erling Smørgrav * user process to have its wicked way with. This driver has it's 12b74038e1SAtsushi Murai * roots in a similar driver written by Phil Cockcroft (formerly) at 13b74038e1SAtsushi Murai * UCL. This driver is based much more on read/write/select mode of 14b74038e1SAtsushi Murai * operation though. 15b74038e1SAtsushi Murai * 16c3aac50fSPeter Wemm * $FreeBSD$ 17b74038e1SAtsushi Murai */ 18b74038e1SAtsushi Murai 19b74038e1SAtsushi Murai #ifndef _NET_IF_TUN_H_ 20b74038e1SAtsushi Murai #define _NET_IF_TUN_H_ 21b74038e1SAtsushi Murai 2252ae741fSBrian Somers /* Refer to if_tunvar.h for the softc stuff */ 23b74038e1SAtsushi Murai 241d389e50SJulian Elischer /* Maximum transmit packet size (default) */ 25c812f23aSBill Fenner #define TUNMTU 1500 26b74038e1SAtsushi Murai 271d389e50SJulian Elischer /* Maximum receive packet size (hard limit) */ 281d389e50SJulian Elischer #define TUNMRU 16384 291d389e50SJulian Elischer 3053c9f6c0SAtsushi Murai struct tuninfo { 3153c9f6c0SAtsushi Murai int baudrate; /* linespeed */ 3253c9f6c0SAtsushi Murai short mtu; /* maximum transmission unit */ 3353c9f6c0SAtsushi Murai u_char type; /* ethernet, tokenring, etc. */ 3453c9f6c0SAtsushi Murai u_char dummy; /* place holder */ 3553c9f6c0SAtsushi Murai }; 3653c9f6c0SAtsushi Murai 37b74038e1SAtsushi Murai /* ioctl's for get/set debug */ 38b74038e1SAtsushi Murai #define TUNSDEBUG _IOW('t', 90, int) 39b74038e1SAtsushi Murai #define TUNGDEBUG _IOR('t', 89, int) 40b74038e1SAtsushi Murai #define TUNSIFINFO _IOW('t', 91, struct tuninfo) 41b74038e1SAtsushi Murai #define TUNGIFINFO _IOR('t', 92, struct tuninfo) 42b56fecc8SDag-Erling Smørgrav #define TUNSLMODE _IOW('t', 93, int) 43b56fecc8SDag-Erling Smørgrav #define TUNSIFMODE _IOW('t', 94, int) 44bbdecb95SBrian Somers #define TUNSIFPID _IO('t', 95) 45b74038e1SAtsushi Murai 46b74038e1SAtsushi Murai #endif /* !_NET_IF_TUN_H_ */ 47