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/* $NetBSD: rmp.h,v 1.4 1995/10/06 05:12:18 thorpej Exp $ */
/*
* Copyright (c) 1988, 1992 The University of Utah and the Center
* for Software Science (CSS).
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Center for Software Science of the University of Utah Computer
* Science Department. CSS requests users of this software to return
* to css-dist@cs.utah.edu any improvements that they make and grant
* CSS redistribution rights.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* from: @(#)rmp.h 8.1 (Berkeley) 6/4/93
*
* From: Utah Hdr: rmp.h 3.1 92/07/06
* Author: Jeff Forys, University of Utah CSS
*/
/*
* Define MIN/MAX sizes of RMP (ethernet) packet.
* For ease of computation, the 4 octet CRC field is not included.
*
* MCLBYTES is for bpfwrite(); it is adamant about using a cluster.
*/
#ifndef __linux__
#define RMP_MAX_PACKET MIN(1514,MCLBYTES)
#else
/* This is not guaranteed to work right - it's the defines for
MCLBYTES from the i386 NetBSD include files (in param.h)
#define MCLSHIFT 11 convert bytes to m_buf clusters
#define MCLBYTES (1 << MCLSHIFT) size of a m_buf cluster
net result is: */
#define MCLBYTES 2048
/* Sadly, gcc thinks that RMP_MAX_PACKET isn't a constant if we use MIN -
probably because /usr/include/bsd/bsd.h defines MIN using ?:
So we use a hardwired value :-< */
/*#define RMP_MAX_PACKET MIN(1514,MCLBYTES) */
#define RMP_MAX_PACKET 1514
/* If anybody knows what the Right Thing to do for Linux here is,
feel free to bugfix :-> This seems to work, at least... */
#endif
#define RMP_MIN_PACKET 60
/*
* Define RMP/Ethernet Multicast address (9:0:9:0:0:4) and its length.
*/
#define RMP_ADDR { 0x9, 0x0, 0x9, 0x0, 0x0, 0x4 }
#define RMP_ADDRLEN 6
/*
* Define IEEE802.2 (Logical Link Control) information.
*/
#define IEEE_DSAP_HP 0xF8 /* Destination Service Access Point */
#define IEEE_SSAP_HP 0xF8 /* Source Service Access Point */
#define IEEE_CNTL_HP 0x0300 /* Type 1 / I format control information */
#define HPEXT_DXSAP 0x608 /* HP Destination Service Access Point */
#define HPEXT_SXSAP 0x609 /* HP Source Service Access Point */
/*
* 802.3-style "Ethernet" header.
*/
struct hp_hdr {
u_int8_t daddr[RMP_ADDRLEN];
u_int8_t saddr[RMP_ADDRLEN];
u_int16_t len;
};
/*
* HP uses 802.2 LLC with their own local extensions. This struct makes
* sense out of this data (encapsulated in the above 802.3 packet).
*/
struct hp_llc {
u_int8_t dsap; /* 802.2 DSAP */
u_int8_t ssap; /* 802.2 SSAP */
u_int16_t cntrl; /* 802.2 control field */
u_int16_t filler; /* HP filler (must be zero) */
u_int16_t dxsap; /* HP extended DSAP */
u_int16_t sxsap; /* HP extended SSAP */
};
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