2 * Copyright (c) 1998, Larry Lile
5 * For latest sources and information on this driver, please
6 * go to http://anarchy.stdio.com.
8 * Questions, comments or suggestions should be directed to
9 * Larry Lile <lile@stdio.com>.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice unmodified, this list of conditions, and the following
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.
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
35 * Information gathered from tokenring@freebsd, /sys/net/ethernet.h and
36 * the Mach token ring driver.
40 * Fundamental constants relating to iso 802.5
43 #ifndef _NET_ISO88025_H_
44 #define _NET_ISO88025_H_
47 * General ISO 802.5 definitions
49 #define ISO88025_ADDR_LEN 6
50 #define ISO88025_CF_LEN 2
51 #define ISO88025_HDR_LEN (ISO88025_CF_LEN + (ISO88025_ADDR_LEN * 2))
54 #define RIF_MAX_LEN 16
57 #define TR_LLC_FRAME 0x40
59 #define TR_4MBPS 4000000
60 #define TR_16MBPS 16000000
61 #define TR_100MBPS 100000000
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
72 #define TR_RCF_RIFLEN(x) ((ntohs(x) & TR_RCF_LEN_MASK) >> 8)
75 * Minimum and maximum packet payload lengths.
77 #define ISO88025_MIN_LEN 0
78 #define ISO88025_MAX_LEN_4 4464
79 #define ISO88025_MAX_LEN_16 17960
80 #define ISO88025_MAX_LEN ISO88025_MAX_LEN_16
83 * A macro to validate a length with
85 #define ISO88025_IS_VALID_LEN(foo) \
86 ((foo) >= ISO88025_MIN_LEN && (foo) <= ISO88025_MAX_LEN)
88 /* Access Control field */
89 #define AC_PRI_MASK 0xe0 /* Priority bits */
90 #define AC_TOKEN 0x10 /* Token bit: 0=Token, 1=Frame */
91 #define AC_MONITOR 0x08 /* Monitor */
92 #define AC_RESV_MASK 0x07 /* Reservation bits */
94 /* Frame Control field */
95 #define FC_FT_MASK 0xc0 /* Frame Type */
96 #define FC_FT_MAC 0x00 /* MAC frame */
97 #define FC_FT_LLC 0x40 /* LLC frame */
98 #define FC_ATTN_MASK 0x0f /* Attention bits */
99 #define FC_ATTN_EB 0x01 /* Express buffer */
100 #define FC_ATTN_BE 0x02 /* Beacon */
101 #define FC_ATTN_CT 0x03 /* Claim token */
102 #define FC_ATTN_RP 0x04 /* Ring purge */
103 #define FC_ATTN_AMP 0x05 /* Active monitor present */
104 #define FC_ATTN_SMP 0x06 /* Standby monitor present */
106 /* Token Ring destination address */
107 #define DA_IG 0x80 /* Individual/group address. */
108 /* 0=Individual, 1=Group */
109 #define DA_UL 0x40 /* Universal/local address. */
110 /* 0=Universal, 1=Local */
111 /* Token Ring source address */
112 #define SA_RII 0x80 /* Routing information indicator */
113 #define SA_IG 0x40 /* Individual/group address */
114 /* 0=Group, 1=Individual */
117 * ISO 802.5 physical header
119 struct iso88025_header {
120 u_int8_t ac; /* access control field */
121 u_int8_t fc; /* frame control field */
122 u_int8_t iso88025_dhost[ISO88025_ADDR_LEN]; /* destination address */
123 u_int8_t iso88025_shost[ISO88025_ADDR_LEN]; /* source address */
124 u_int16_t rcf; /* route control field */
125 u_int16_t rd[RIF_MAX_RD]; /* routing designators */
128 struct iso88025_rif {
129 u_int16_t rcf; /* route control field */
130 u_int16_t rd[RIF_MAX_RD]; /* routing designators */
133 struct iso88025_sockaddr_data {
134 u_char ether_dhost[ISO88025_ADDR_LEN];
135 u_char ether_shost[ISO88025_ADDR_LEN];
140 struct iso88025_sockaddr_dl_data {
142 u_short *trld_route[RIF_MAX_LEN];
145 #define ISO88025_MAX(a, b) (((a)>(b))?(a):(b))
146 #define SDL_ISO88025(s) ((struct iso88025_sockaddr_dl_data *) \
148 ISO88025_MAX((s)->sdl_nlen + (s)->sdl_alen + \
152 * Structure of a 48-bit iso 802.5 address.
153 * ( We could also add the 16 bit addresses as a union)
155 struct iso88025_addr {
156 u_char octet[ISO88025_ADDR_LEN];
159 #define ISO88025_MAX_MTU 18000
160 #define ISO88025_DEFAULT_MTU 1500
162 #define ISO88025_BPF_UNSUPPORTED 0
163 #define ISO88025_BPF_SUPPORTED 1
165 void iso88025_ifattach (struct ifnet *, const u_int8_t *, int);
166 void iso88025_ifdetach (struct ifnet *, int);
167 int iso88025_ioctl (struct ifnet *, u_long, caddr_t );
168 int iso88025_output (struct ifnet *, struct mbuf *, struct sockaddr *,
170 void iso88025_input (struct ifnet *, struct mbuf *);