1/*	$OpenBSD: rmp.h,v 1.4 2013/03/20 15:02:39 deraadt Exp $	*/
2/*	$NetBSD: rmp.h,v 1.4 1995/10/06 05:12:18 thorpej Exp $	*/
3
4/*
5 * Copyright (c) 1988, 1992 The University of Utah and the Center
6 *	for Software Science (CSS).
7 * Copyright (c) 1992, 1993
8 *	The Regents of the University of California.  All rights reserved.
9 *
10 * This code is derived from software contributed to Berkeley by
11 * the Center for Software Science of the University of Utah Computer
12 * Science Department.  CSS requests users of this software to return
13 * to css-dist@cs.utah.edu any improvements that they make and grant
14 * CSS redistribution rights.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
18 * are met:
19 * 1. Redistributions of source code must retain the above copyright
20 *    notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 *    notice, this list of conditions and the following disclaimer in the
23 *    documentation and/or other materials provided with the distribution.
24 * 3. Neither the name of the University nor the names of its contributors
25 *    may be used to endorse or promote products derived from this software
26 *    without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 *	from: @(#)rmp.h	8.1 (Berkeley) 6/4/93
41 *
42 * From: Utah Hdr: rmp.h 3.1 92/07/06
43 * Author: Jeff Forys, University of Utah CSS
44 */
45
46/*
47 *  Define MIN/MAX sizes of RMP (ethernet) packet.
48 *  For ease of computation, the 4 octet CRC field is not included.
49 *
50 *  MCLBYTES is for bpfwrite(); it is adamant about using a cluster.
51 */
52
53#define	RMP_MAX_PACKET	1514
54#define	RMP_MIN_PACKET	60
55
56/*
57 *  Define RMP/Ethernet Multicast address (9:0:9:0:0:4) and its length.
58 */
59#define	RMP_ADDR	{ 0x9, 0x0, 0x9, 0x0, 0x0, 0x4 }
60#define	RMP_ADDRLEN	6
61
62/*
63 *  Define IEEE802.2 (Logical Link Control) information.
64 */
65#define	IEEE_DSAP_HP	0xF8	/* Destination Service Access Point */
66#define	IEEE_SSAP_HP	0xF8	/* Source Service Access Point */
67#define	IEEE_CNTL_HP	0x0300	/* Type 1 / I format control information */
68
69#define	HPEXT_DXSAP	0x608	/* HP Destination Service Access Point */
70#define	HPEXT_SXSAP	0x609	/* HP Source Service Access Point */
71
72/*
73 *  802.3-style "Ethernet" header.
74 */
75
76struct hp_hdr {
77	u_int8_t	daddr[RMP_ADDRLEN];
78	u_int8_t	saddr[RMP_ADDRLEN];
79	u_int16_t	len;
80};
81
82/*
83 * HP uses 802.2 LLC with their own local extensions.  This struct makes
84 * sense out of this data (encapsulated in the above 802.3 packet).
85 */
86
87struct hp_llc {
88	u_int8_t	dsap;		/* 802.2 DSAP */
89	u_int8_t	ssap;		/* 802.2 SSAP */
90	u_int16_t	cntrl;		/* 802.2 control field */
91	u_int16_t	filler;		/* HP filler (must be zero) */
92	u_int16_t	dxsap;		/* HP extended DSAP */
93	u_int16_t	sxsap;		/* HP extended SSAP */
94};
95