freebsd-src/libexec/rbootd/rmp.h
Pedro F. Giffuni 8a16b7a18f General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00

96 lines
3.5 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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. 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
*
* $FreeBSD$
*/
/*
* 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.
*/
#define RMP_MAX_PACKET MIN(1514,MCLBYTES)
#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 */
};