NetBSD-5.0.2/dist/tcpdump/slip.h

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/*	$NetBSD: slip.h,v 1.2 2007/07/24 11:53:49 drochner Exp $	*/

/*
 * Definitions that user level programs might need to know to interact
 * with serial line IP (slip) lines.
 *
 * @(#) Header: /tcpdump/master/tcpdump/slip.h,v 1.1 2000/10/09 01:53:21 guy Exp
 *
 * Copyright (c) 1990 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

/*
 * definitions of the pseudo- link-level header attached to slip
 * packets grabbed by the packet filter (bpf) traffic monitor.
 */
#define SLIP_HDRLEN 16

#define SLX_DIR 0
#define SLX_CHDR 1
#define CHDR_LEN 15

#define SLIPDIR_IN 0
#define SLIPDIR_OUT 1