Watt-32 tcp/ip  2.2 dev-rel.10
slip.h
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1 
5 /* $NetBSD: slip.h,v 1.6 1994/06/29 06:36:53 cgd Exp $ */
6 
7 /*-
8  * Copyright (c) 1994
9  * The Regents of the University of California. All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  * notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in the
18  * documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  * must display the following acknowledgement:
21  * This product includes software developed by the University of
22  * California, Berkeley and its contributors.
23  * 4. Neither the name of the University nor the names of its contributors
24  * may be used to endorse or promote products derived from this software
25  * without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30  * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37  * SUCH DAMAGE.
38  *
39  * @(#)slip.h 8.1 (Berkeley) 2/12/94
40  */
41 
42 #ifndef __NET_SLIP_H
43 #define __NET_SLIP_H
44 
45 /* Ioctls operating on SLIP ttys. */
46 #define SLIOCGUNIT _IOR('t', 88, int) /* get slip unit number */
47 
48 /*
49  * Definitions of the pseudo-link-level header attached to slip
50  * packets grabbed by the packet filter (bpf) traffic monitor.
51  */
52 #define SLIP_HDRLEN 16 /* BPF SLIP header length */
53 
54 /* Offsets into BPF SLIP header. */
55 #define SLX_DIR 0 /* direction; see below */
56 #define SLX_CHDR 1 /* compressed header data */
57 #define CHDR_LEN 15 /* length of compressed header data */
58 
59 #define SLIPDIR_IN 0 /* incoming */
60 #define SLIPDIR_OUT 1 /* outgoing */
61 
62 #endif