1 /* $NetBSD: if_tun.h,v 1.5 1994/06/29 06:36:27 cgd Exp $ */
4 * Copyright (c) 1988, Julian Onions <jpo@cs.nott.ac.uk>
5 * Nottingham University 1987.
7 * This source may be freely distributed, however I would be interested
8 * in any changes that are made.
10 * This driver takes packets off the IP i/f and hands them up to a
11 * user process to have its wicked way with. This driver has it's
12 * roots in a similar driver written by Phil Cockcroft (formerly) at
13 * UCL. This driver is based much more on read/write/select mode of
19 #ifndef _NET_IF_TUN_H_
20 #define _NET_IF_TUN_H_
22 /* Refer to if_tunvar.h for the softc stuff */
24 /* Maximum transmit packet size (default) */
27 /* Maximum receive packet size (hard limit) */
31 int baudrate; /* linespeed */
32 unsigned short mtu; /* maximum transmission unit */
33 u_char type; /* ethernet, tokenring, etc. */
34 u_char dummy; /* place holder */
37 /* ioctl's for get/set debug */
38 #define TUNSDEBUG _IOW('t', 90, int)
39 #define TUNGDEBUG _IOR('t', 89, int)
40 #define TUNSIFINFO _IOW('t', 91, struct tuninfo)
41 #define TUNGIFINFO _IOR('t', 92, struct tuninfo)
42 #define TUNSLMODE _IOW('t', 93, int)
43 #define TUNGIFNAME _IOR('t', 93, struct ifreq)
44 #define TUNSIFMODE _IOW('t', 94, int)
45 #define TUNSIFPID _IO('t', 95)
46 #define TUNSIFHEAD _IOW('t', 96, int)
47 #define TUNGIFHEAD _IOR('t', 97, int)
49 #endif /* !_NET_IF_TUN_H_ */