FreeBSD/Linux Kernel Cross Reference
sys/net/iso88025.h
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 1.13.6.1 2005/01/31 23:26:23 imp 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_CF_LEN 2
51 #define ISO88025_HDR_LEN (ISO88025_CF_LEN + (ISO88025_ADDR_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_4 4464
79 #define ISO88025_MAX_LEN_16 17960
80 #define ISO88025_MAX_LEN ISO88025_MAX_LEN_16
81
82 /*
83 * A macro to validate a length with
84 */
85 #define ISO88025_IS_VALID_LEN(foo) \
86 ((foo) >= ISO88025_MIN_LEN && (foo) <= ISO88025_MAX_LEN)
87
88 /*
89 * ISO 802.5 physical header
90 */
91 struct iso88025_header {
92 u_int8_t ac; /* access control field */
93 u_int8_t fc; /* frame control field */
94 u_int8_t iso88025_dhost[ISO88025_ADDR_LEN]; /* destination address */
95 u_int8_t iso88025_shost[ISO88025_ADDR_LEN]; /* source address */
96 u_int16_t rcf; /* route control field */
97 u_int16_t rd[RIF_MAX_RD]; /* routing designators */
98 } __packed;
99
100 struct iso88025_rif {
101 u_int16_t rcf; /* route control field */
102 u_int16_t rd[RIF_MAX_RD]; /* routing designators */
103 } __packed;
104
105 struct iso88025_sockaddr_data {
106 u_char ether_dhost[ISO88025_ADDR_LEN];
107 u_char ether_shost[ISO88025_ADDR_LEN];
108 u_char ac;
109 u_char fc;
110 };
111
112 struct iso88025_sockaddr_dl_data {
113 u_short trld_rcf;
114 u_short *trld_route[RIF_MAX_LEN];
115 };
116
117 #define ISO88025_MAX(a, b) (((a)>(b))?(a):(b))
118 #define SDL_ISO88025(s) ((struct iso88025_sockaddr_dl_data *) \
119 ((s)->sdl_data + \
120 ISO88025_MAX((s)->sdl_nlen + (s)->sdl_alen + \
121 (s)->sdl_slen, 12)))
122
123 /*
124 * Structure of a 48-bit iso 802.5 address.
125 * ( We could also add the 16 bit addresses as a union)
126 */
127 struct iso88025_addr {
128 u_char octet[ISO88025_ADDR_LEN];
129 };
130
131 #define ISO88025_MAX_MTU 18000
132 #define ISO88025_DEFAULT_MTU 1500
133
134 #define ISO88025_BPF_UNSUPPORTED 0
135 #define ISO88025_BPF_SUPPORTED 1
136
137 void iso88025_ifattach (struct ifnet *, int);
138 void iso88025_ifdetach (struct ifnet *, int);
139 int iso88025_ioctl (struct ifnet *, int , caddr_t );
140 int iso88025_output (struct ifnet *, struct mbuf *, struct sockaddr *,
141 struct rtentry *);
142 void iso88025_input (struct ifnet *, struct mbuf *);
143
144 #endif
Cache object: 4b00dd928f4b8e6115e336ce18c4c3ee
|