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[unix-history] / sys / netns / sp.h
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1/*
2 * Copyright (c) 1984, 1985, 1986, 1987 Regents of the University of California.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
136b31f1 33 * from: @(#)sp.h 7.4 (Berkeley) 6/28/90
8ace4366 34 * $Id: sp.h,v 1.2 1993/10/16 19:54:32 rgrimes Exp $
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35 */
36
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37#ifndef _NETNS_SP_H_
38#define _NETNS_SP_H_ 1
39
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40/*
41 * Definitions for Xerox NS style sequenced packet protocol
42 */
43
44struct sphdr {
45 u_char sp_cc; /* connection control */
46 u_char sp_dt; /* datastream type */
47#define SP_SP 0x80 /* system packet */
48#define SP_SA 0x40 /* send acknowledgement */
49#define SP_OB 0x20 /* attention (out of band data) */
50#define SP_EM 0x10 /* end of message */
51 u_short sp_sid; /* source connection identifier */
52 u_short sp_did; /* destination connection identifier */
53 u_short sp_seq; /* sequence number */
54 u_short sp_ack; /* acknowledge number */
55 u_short sp_alo; /* allocation number */
56};
8ace4366 57#endif /* _NETNS_SP_H_ */