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Commit	Line	Data
	1	/*
	2	* Copyright (c) 1998, Larry Lile
	3	* All rights reserved.
	4	*
	5	* For latest sources and information on this driver, please
	6	* go to http://anarchy.stdio.com.
	7	*
	8	* Questions, comments or suggestions should be directed to
	9	* Larry Lile <lile@stdio.com>.
	10	*
	11	* Redistribution and use in source and binary forms, with or without
	12	* modification, are permitted provided that the following conditions
	13	* are met:
	14	* 1. Redistributions of source code must retain the above copyright
	15	* notice unmodified, this list of conditions, and the following
	16	* disclaimer.
	17	* 2. Redistributions in binary form must reproduce the above copyright
	18	* notice, this list of conditions and the following disclaimer in the
	19	* documentation and/or other materials provided with the distribution.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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	*
	33	* $FreeBSD: src/sys/net/iso88025.h,v 1.3.2.1 2000/10/14 20:01:06 lile Exp $
	34	*
	35	* Information gathered from tokenring@freebsd, /sys/net/ethernet.h and
	36	* the Mach token ring driver.
	37	*/
	38
	39	/*
	40	* Fundamental constants relating to iso 802.5
	41	*/
	42
	43	#ifndef _NET_ISO88025_H_
	44	#define _NET_ISO88025_H_
	45
	46	/*
	47	* General ISO 802.5 definitions
	48	*/
	49	#define ISO88025_ADDR_LEN 6
	50	#define ISO88025_HDR_LEN (ISO88025_CF_LEN + (ISO88025_ADDR_LEN * 2))
	51	#define ISO88025_CF_LEN 2
	52	#define RCF_LEN 2
	53	#define RIF_MAX_RD 14
	54	#define RIF_MAX_LEN 16
	55
	56	#define TR_AC 0x10
	57	#define TR_LLC_FRAME 0x40
	58
	59	#define TR_4MBPS 4000000
	60	#define TR_16MBPS 16000000
	61	#define TR_100MBPS 100000000
	62
	63	/*
	64	* Source routing
	65	*/
	66	#define TR_RII 0x80
	67	#define TR_RCF_BCST_MASK 0xe000
	68	#define TR_RCF_LEN_MASK 0x1f00
	69	#define TR_RCF_DIR 0x0080
	70	#define TR_RCF_LF_MASK 0x0070
	71
	72	#define TR_RCF_RIFLEN(x) ((ntohs(x) & TR_RCF_LEN_MASK) >> 8)
	73
	74	/*
	75	* Minimum and maximum packet payload lengths.
	76	*/
	77	#define ISO88025_MIN_LEN 0
	78	#define ISO88025_MAX_LEN 17960
	79
	80	/*
	81	* A macro to validate a length with
	82	*/
	83	#define ISO88025_IS_VALID_LEN(foo) \
	84	((foo) >= ISO88025_MIN_LEN && (foo) <= ISO88025_MAX_LEN)
	85
	86	/*
	87	* ISO 802.5 physical header
	88	*/
	89	struct iso88025_header {
	90	u_char ac; /* access control field */
	91	u_char fc; /* frame control field */
	92	u_char iso88025_dhost[ISO88025_ADDR_LEN]; /* destination address */
	93	u_char iso88025_shost[ISO88025_ADDR_LEN]; /* source address */
	94	u_short rcf; /* route control field */
	95	u_short rd[RIF_MAX_RD]; /* routing designators */
	96	};
	97
	98	struct iso88025_sockaddr_data {
	99	u_char ether_dhost[ISO88025_ADDR_LEN];
	100	u_char ether_shost[ISO88025_ADDR_LEN];
	101	u_char ac;
	102	u_char fc;
	103	};
	104
	105	/*
	106	* Structure of a 48-bit iso 802.5 address.
	107	* ( We could also add the 16 bit addresses as a union)
	108	*/
	109	struct iso88025_addr {
	110	u_char octet[ISO88025_ADDR_LEN];
	111	};
	112
	113	#define ISO88025_MAX_MTU 18000
	114	#define ISO88025_DEFAULT_MTU 1500
	115	#define senderr(e) { error = (e); goto bad;}
	116
	117	#endif