diff options
Diffstat (limited to 'freebsd/sys/net/if_tun.h')
-rw-r--r-- | freebsd/sys/net/if_tun.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/freebsd/sys/net/if_tun.h b/freebsd/sys/net/if_tun.h new file mode 100644 index 00000000..29718cda --- /dev/null +++ b/freebsd/sys/net/if_tun.h @@ -0,0 +1,48 @@ +/* $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_HH_ +#define _NET_IF_TUN_HH_ + +/* 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_HH_ */ |