1 /* $NetBSD: rmp.h,v 1.4 1995/10/06 05:12:18 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1992 The University of Utah and the Center 5 * for Software Science (CSS). 6 * Copyright (c) 1992, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * the Center for Software Science of the University of Utah Computer 11 * Science Department. CSS requests users of this software to return 12 * to css-dist@cs.utah.edu any improvements that they make and grant 13 * CSS redistribution rights. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 3. All advertising materials mentioning features or use of this software 24 * must display the following acknowledgement: 25 * This product includes software developed by the University of 26 * California, Berkeley and its contributors. 27 * 4. Neither the name of the University nor the names of its contributors 28 * may be used to endorse or promote products derived from this software 29 * without specific prior written permission. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 32 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 39 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 40 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 41 * SUCH DAMAGE. 42 * 43 * from: @(#)rmp.h 8.1 (Berkeley) 6/4/93 44 * 45 * From: Utah Hdr: rmp.h 3.1 92/07/06 46 * Author: Jeff Forys, University of Utah CSS 47 */ 48 49 /* 50 * Define MIN/MAX sizes of RMP (ethernet) packet. 51 * For ease of computation, the 4 octet CRC field is not included. 52 * 53 * MCLBYTES is for bpfwrite(); it is adamant about using a cluster. 54 */ 55 56 #define RMP_MAX_PACKET MIN(1514,MCLBYTES) 57 #define RMP_MIN_PACKET 60 58 59 /* 60 * Define RMP/Ethernet Multicast address (9:0:9:0:0:4) and its length. 61 */ 62 #define RMP_ADDR { 0x9, 0x0, 0x9, 0x0, 0x0, 0x4 } 63 #define RMP_ADDRLEN 6 64 65 /* 66 * Define IEEE802.2 (Logical Link Control) information. 67 */ 68 #define IEEE_DSAP_HP 0xF8 /* Destination Service Access Point */ 69 #define IEEE_SSAP_HP 0xF8 /* Source Service Access Point */ 70 #define IEEE_CNTL_HP 0x0300 /* Type 1 / I format control information */ 71 72 #define HPEXT_DXSAP 0x608 /* HP Destination Service Access Point */ 73 #define HPEXT_SXSAP 0x609 /* HP Source Service Access Point */ 74 75 /* 76 * 802.3-style "Ethernet" header. 77 */ 78 79 struct hp_hdr { 80 u_int8_t daddr[RMP_ADDRLEN]; 81 u_int8_t saddr[RMP_ADDRLEN]; 82 u_int16_t len; 83 }; 84 85 /* 86 * HP uses 802.2 LLC with their own local extensions. This struct makes 87 * sense out of this data (encapsulated in the above 802.3 packet). 88 */ 89 90 struct hp_llc { 91 u_int8_t dsap; /* 802.2 DSAP */ 92 u_int8_t ssap; /* 802.2 SSAP */ 93 u_int16_t cntrl; /* 802.2 control field */ 94 u_int16_t filler; /* HP filler (must be zero) */ 95 u_int16_t dxsap; /* HP extended DSAP */ 96 u_int16_t sxsap; /* HP extended SSAP */ 97 }; 98