1 /* $OpenBSD: slip.h,v 1.4 2003/06/02 23:28:12 millert Exp $ */ 2 /* $NetBSD: slip.h,v 1.6 1994/06/29 06:36:53 cgd Exp $ */ 3 4 /*- 5 * Copyright (c) 1994 6 * The Regents of the University of California. 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 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)slip.h 8.1 (Berkeley) 2/12/94 33 */ 34 35 #ifndef _NET_SLIP_H_ 36 #define _NET_SLIP_H_ 37 38 /* Ioctls operating on SLIP ttys. */ 39 #define SLIOCGUNIT _IOR('t', 88, int) /* get slip unit number */ 40 41 /* 42 * Definitions of the pseudo-link-level header attached to slip 43 * packets grabbed by the packet filter (bpf) traffic monitor. 44 */ 45 #define SLIP_HDRLEN 16 /* BPF SLIP header length */ 46 47 /* Offsets into BPF SLIP header. */ 48 #define SLX_DIR 0 /* direction; see below */ 49 #define SLX_CHDR 1 /* compressed header data */ 50 #define CHDR_LEN 15 /* length of compressed header data */ 51 52 #define SLIPDIR_IN 0 /* incoming */ 53 #define SLIPDIR_OUT 1 /* outgoing */ 54 #endif /* _NET_SLIP_H_ */ 55