1 /* $OpenBSD: if_tun.h,v 1.15 2007/02/06 10:49:40 claudio Exp $ */ 2 3 /* 4 * Copyright (c) 1988, Julian Onions <Julian.Onions@nexor.co.uk> 5 * Nottingham University 1987. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _NET_IF_TUN_H_ 30 #define _NET_IF_TUN_H_ 31 32 #include <sys/ioccom.h> 33 34 #define TUN_OPEN 0x0001 35 #define TUN_INITED 0x0002 36 #define TUN_RCOLL 0x0004 /* unused */ 37 #define TUN_IASET 0x0008 38 #define TUN_DSTADDR 0x0010 39 #define TUN_RWAIT 0x0040 40 #define TUN_ASYNC 0x0080 41 #define TUN_NBIO 0x0100 42 #define TUN_BRDADDR 0x0200 43 #define TUN_STAYUP 0x0400 44 #define TUN_LAYER2 0x0800 45 46 #define TUN_READY (TUN_OPEN | TUN_INITED) 47 48 /* Maximum packet size */ 49 #define TUNMTU 3000 50 51 /* Maximum receive packet size (hard limit) */ 52 #define TUNMRU 16384 53 54 /* iface info */ 55 struct tuninfo { 56 u_int mtu; 57 u_short type; 58 u_short flags; 59 u_int baudrate; 60 }; 61 #define TUNSIFINFO _IOW('t', 91, struct tuninfo) 62 #define TUNGIFINFO _IOR('t', 92, struct tuninfo) 63 64 /* ioctl for changing the broadcast/point-to-point status */ 65 #define TUNSIFMODE _IOW('t', 93, int) 66 67 /* ioctl's for get/set debug */ 68 #define TUNSDEBUG _IOW('t', 94, int) 69 #define TUNGDEBUG _IOR('t', 95, int) 70 71 #endif /* _NET_IF_TUN_H_ */ 72