| /* $NetBSD: if_tun.h,v 1.5 1994/06/29 06:36:27 cgd 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 its 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. |
| * |
| * $FreeBSD: src/sys/net/if_tun.h,v 1.17 2000/01/23 01:47:12 brian Exp $ |
| */ |
| |
| #ifndef _NET_IF_TUN_H_ |
| #define _NET_IF_TUN_H_ |
| |
| /* Refer to if_tunvar.h for the softc stuff */ |
| |
| /* Maximum transmit packet size (default) */ |
| #define TUNMTU 1500 |
| |
| /* Maximum receive packet size (hard limit) */ |
| #define TUNMRU 16384 |
| |
| struct tuninfo { |
| int baudrate; /* linespeed */ |
| short mtu; /* maximum transmission unit */ |
| u_char type; /* ethernet, tokenring, etc. */ |
| u_char dummy; /* place holder */ |
| }; |
| |
| /* ioctl's for get/set debug */ |
| #define TUNSDEBUG _IOW('t', 90, int) |
| #define TUNGDEBUG _IOR('t', 89, int) |
| #define TUNSIFINFO _IOW('t', 91, struct tuninfo) |
| #define TUNGIFINFO _IOR('t', 92, struct tuninfo) |
| #define TUNSLMODE _IOW('t', 93, int) |
| #define TUNSIFMODE _IOW('t', 94, int) |
| #define TUNSIFPID _IO('t', 95) |
| #define TUNSIFHEAD _IOW('t', 96, int) |
| #define TUNGIFHEAD _IOR('t', 97, int) |
| |
| #endif /* !_NET_IF_TUN_H_ */ |
