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- /* $OpenBSD: slip.h,v 1.5 2013/10/24 18:50:16 deraadt Exp $ */
- /* $NetBSD: slip.h,v 1.6 1994/06/29 06:36:53 cgd Exp $ */
- /*-
- * Copyright (c) 1994
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)slip.h 8.1 (Berkeley) 2/12/94
- */
- #ifndef _NET_SLIP_H_
- #define _NET_SLIP_H_
- /* Ioctls operating on SLIP ttys. */
- #define SLIOCGUNIT _IOR('t', 88, int) /* get slip unit number */
- /*
- * Definitions of the pseudo-link-level header attached to slip
- * packets grabbed by the packet filter (bpf) traffic monitor.
- */
- #define SLIP_HDRLEN 16 /* BPF SLIP header length */
- /* Offsets into BPF SLIP header. */
- #define SLX_DIR 0 /* direction; see below */
- #define SLX_CHDR 1 /* compressed header data */
- #define CHDR_LEN 15 /* length of compressed header data */
- #define SLIPDIR_IN 0 /* incoming */
- #define SLIPDIR_OUT 1 /* outgoing */
- #endif /* _NET_SLIP_H_ */
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