mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/* $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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#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_ */
|