1 /*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Global definitions for the ANSI FDDI interface.
7 *
8 * Version: @(#)if_fddi.h 1.0.2 Sep 29 2004
9 *
10 * Author: Lawrence V. Stefani, <stefani@lkg.dec.com>
11 *
12 * if_fddi.h is based on previous if_ether.h and if_tr.h work by
13 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
14 * Donald Becker, <becker@super.org>
15 * Alan Cox, <alan@redhat.com>
16 * Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
17 * Peter De Schrijver, <stud11@cc4.kuleuven.ac.be>
18 *
19 * This program is free software; you can redistribute it and/or
20 * modify it under the terms of the GNU General Public License
21 * as published by the Free Software Foundation; either version
22 * 2 of the License, or (at your option) any later version.
23 */
24 #ifndef _LINUX_IF_FDDI_H
25 #define _LINUX_IF_FDDI_H
26
27 /*
28 * Define max and min legal sizes. The frame sizes do not include
29 * 4 byte FCS/CRC (frame check sequence).
30 */
31 #define FDDI_K_ALEN 6 /* Octets in one FDDI address */
32 #define FDDI_K_8022_HLEN 16 /* Total octets in 802.2 header */
33 #define FDDI_K_SNAP_HLEN 21 /* Total octets in 802.2 SNAP header */
34 #define FDDI_K_8022_ZLEN 16 /* Min octets in 802.2 frame sans FCS */
35 #define FDDI_K_SNAP_ZLEN 21 /* Min octets in 802.2 SNAP frame sans FCS */
36 #define FDDI_K_8022_DLEN 4475 /* Max octets in 802.2 payload */
37 #define FDDI_K_SNAP_DLEN 4470 /* Max octets in 802.2 SNAP payload */
38 #define FDDI_K_LLC_ZLEN 13 /* Min octets in LLC frame sans FCS */
39 #define FDDI_K_LLC_LEN 4491 /* Max octets in LLC frame sans FCS */
40
41 /* Define FDDI Frame Control (FC) Byte values */
42 #define FDDI_FC_K_VOID 0x00
43 #define FDDI_FC_K_NON_RESTRICTED_TOKEN 0x80
44 #define FDDI_FC_K_RESTRICTED_TOKEN 0xC0
45 #define FDDI_FC_K_SMT_MIN 0x41
46 #define FDDI_FC_K_SMT_MAX 0x4F
47 #define FDDI_FC_K_MAC_MIN 0xC1
48 #define FDDI_FC_K_MAC_MAX 0xCF
49 #define FDDI_FC_K_ASYNC_LLC_MIN 0x50
50 #define FDDI_FC_K_ASYNC_LLC_DEF 0x54
51 #define FDDI_FC_K_ASYNC_LLC_MAX 0x5F
52 #define FDDI_FC_K_SYNC_LLC_MIN 0xD0
53 #define FDDI_FC_K_SYNC_LLC_MAX 0xD7
54 #define FDDI_FC_K_IMPLEMENTOR_MIN 0x60
55 #define FDDI_FC_K_IMPLEMENTOR_MAX 0x6F
56 #define FDDI_FC_K_RESERVED_MIN 0x70
57 #define FDDI_FC_K_RESERVED_MAX 0x7F
58
59 /* Define LLC and SNAP constants */
60 #define FDDI_EXTENDED_SAP 0xAA
61 #define FDDI_UI_CMD 0x03
62
63 /* Define 802.2 Type 1 header */
64 struct fddi_8022_1_hdr
65 {
66 __u8 dsap; /* destination service access point */
67 __u8 ssap; /* source service access point */
68 __u8 ctrl; /* control byte #1 */
69 } __attribute__ ((packed));
70
71 /* Define 802.2 Type 2 header */
72 struct fddi_8022_2_hdr
73 {
74 __u8 dsap; /* destination service access point */
75 __u8 ssap; /* source service access point */
76 __u8 ctrl_1; /* control byte #1 */
77 __u8 ctrl_2; /* control byte #2 */
78 } __attribute__ ((packed));
79
80 /* Define 802.2 SNAP header */
81 #define FDDI_K_OUI_LEN 3
82 struct fddi_snap_hdr
83 {
84 __u8 dsap; /* always 0xAA */
85 __u8 ssap; /* always 0xAA */
86 __u8 ctrl; /* always 0x03 */
87 __u8 oui[FDDI_K_OUI_LEN]; /* organizational universal id */
88 __u16 ethertype; /* packet type ID field */
89 } __attribute__ ((packed));
90
91 /* Define FDDI LLC frame header */
92 struct fddihdr
93 {
94 __u8 fc; /* frame control */
95 __u8 daddr[FDDI_K_ALEN]; /* destination address */
96 __u8 saddr[FDDI_K_ALEN]; /* source address */
97 union
98 {
99 struct fddi_8022_1_hdr llc_8022_1;
100 struct fddi_8022_2_hdr llc_8022_2;
101 struct fddi_snap_hdr llc_snap;
102 } hdr;
103 } __attribute__ ((packed));
104
105 /* Define FDDI statistics structure */
106 struct fddi_statistics {
107
108 /* Generic statistics. */
109
110 struct net_device_stats gen;
111
112 /* Detailed FDDI statistics. Adopted from RFC 1512 */
113
114 __u8 smt_station_id[8];
115 __u32 smt_op_version_id;
116 __u32 smt_hi_version_id;
117 __u32 smt_lo_version_id;
118 __u8 smt_user_data[32];
119 __u32 smt_mib_version_id;
120 __u32 smt_mac_cts;
121 __u32 smt_non_master_cts;
122 __u32 smt_master_cts;
123 __u32 smt_available_paths;
124 __u32 smt_config_capabilities;
125 __u32 smt_config_policy;
126 __u32 smt_connection_policy;
127 __u32 smt_t_notify;
128 __u32 smt_stat_rpt_policy;
129 __u32 smt_trace_max_expiration;
130 __u32 smt_bypass_present;
131 __u32 smt_ecm_state;
132 __u32 smt_cf_state;
133 __u32 smt_remote_disconnect_flag;
134 __u32 smt_station_status;
135 __u32 smt_peer_wrap_flag;
136 __u32 smt_time_stamp;
137 __u32 smt_transition_time_stamp;
138 __u32 mac_frame_status_functions;
139 __u32 mac_t_max_capability;
140 __u32 mac_tvx_capability;
141 __u32 mac_available_paths;
142 __u32 mac_current_path;
143 __u8 mac_upstream_nbr[FDDI_K_ALEN];
144 __u8 mac_downstream_nbr[FDDI_K_ALEN];
145 __u8 mac_old_upstream_nbr[FDDI_K_ALEN];
146 __u8 mac_old_downstream_nbr[FDDI_K_ALEN];
147 __u32 mac_dup_address_test;
148 __u32 mac_requested_paths;
149 __u32 mac_downstream_port_type;
150 __u8 mac_smt_address[FDDI_K_ALEN];
151 __u32 mac_t_req;
152 __u32 mac_t_neg;
153 __u32 mac_t_max;
154 __u32 mac_tvx_value;
155 __u32 mac_frame_cts;
156 __u32 mac_copied_cts;
157 __u32 mac_transmit_cts;
158 __u32 mac_error_cts;
159 __u32 mac_lost_cts;
160 __u32 mac_frame_error_threshold;
161 __u32 mac_frame_error_ratio;
162 __u32 mac_rmt_state;
163 __u32 mac_da_flag;
164 __u32 mac_una_da_flag;
165 __u32 mac_frame_error_flag;
166 __u32 mac_ma_unitdata_available;
167 __u32 mac_hardware_present;
168 __u32 mac_ma_unitdata_enable;
169 __u32 path_tvx_lower_bound;
170 __u32 path_t_max_lower_bound;
171 __u32 path_max_t_req;
172 __u32 path_configuration[8];
173 __u32 port_my_type[2];
174 __u32 port_neighbor_type[2];
175 __u32 port_connection_policies[2];
176 __u32 port_mac_indicated[2];
177 __u32 port_current_path[2];
178 __u8 port_requested_paths[3*2];
179 __u32 port_mac_placement[2];
180 __u32 port_available_paths[2];
181 __u32 port_pmd_class[2];
182 __u32 port_connection_capabilities[2];
183 __u32 port_bs_flag[2];
184 __u32 port_lct_fail_cts[2];
185 __u32 port_ler_estimate[2];
186 __u32 port_lem_reject_cts[2];
187 __u32 port_lem_cts[2];
188 __u32 port_ler_cutoff[2];
189 __u32 port_ler_alarm[2];
190 __u32 port_connect_state[2];
191 __u32 port_pcm_state[2];
192 __u32 port_pc_withhold[2];
193 __u32 port_ler_flag[2];
194 __u32 port_hardware_present[2];
195 };
196
197 #endif /* _LINUX_IF_FDDI_H */
198
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