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root/include/linux/if_fddi.h

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/*
 * INET         An implementation of the TCP/IP protocol suite for the LINUX
 *              operating system.  INET is implemented using the BSD Socket
 *              interface as the means of communication with the user level.
 *
 *              Global definitions for the ANSI FDDI interface.
 *
 * Version:     @(#)if_fddi.h   1.0.2   Sep 29 2004
 *
 * Author:      Lawrence V. Stefani, <stefani@lkg.dec.com>
 *
 *              if_fddi.h is based on previous if_ether.h and if_tr.h work by
 *                      Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 *                      Donald Becker, <becker@super.org>
 *                      Alan Cox, <alan@lxorguk.ukuu.org.uk>
 *                      Steve Whitehouse, <gw7rrm@eeshack3.swan.ac.uk>
 *                      Peter De Schrijver, <stud11@cc4.kuleuven.ac.be>
 *
 *              This program is free software; you can redistribute it and/or
 *              modify it under the terms of the GNU General Public License
 *              as published by the Free Software Foundation; either version
 *              2 of the License, or (at your option) any later version.
 */
#ifndef _LINUX_IF_FDDI_H
#define _LINUX_IF_FDDI_H

#include <linux/types.h>

/*
 *  Define max and min legal sizes.  The frame sizes do not include
 *  4 byte FCS/CRC (frame check sequence).
 */
#define FDDI_K_ALEN                     6               /* Octets in one FDDI address */
#define FDDI_K_8022_HLEN        16              /* Total octets in 802.2 header */
#define FDDI_K_SNAP_HLEN        21              /* Total octets in 802.2 SNAP header */
#define FDDI_K_8022_ZLEN        16              /* Min octets in 802.2 frame sans FCS */
#define FDDI_K_SNAP_ZLEN        21              /* Min octets in 802.2 SNAP frame sans FCS */
#define FDDI_K_8022_DLEN        4475    /* Max octets in 802.2 payload */
#define FDDI_K_SNAP_DLEN        4470    /* Max octets in 802.2 SNAP payload */
#define FDDI_K_LLC_ZLEN         13              /* Min octets in LLC frame sans FCS */
#define FDDI_K_LLC_LEN          4491    /* Max octets in LLC frame sans FCS */

/* Define FDDI Frame Control (FC) Byte values */
#define FDDI_FC_K_VOID                                  0x00    
#define FDDI_FC_K_NON_RESTRICTED_TOKEN  0x80    
#define FDDI_FC_K_RESTRICTED_TOKEN              0xC0    
#define FDDI_FC_K_SMT_MIN                               0x41
#define FDDI_FC_K_SMT_MAX                               0x4F
#define FDDI_FC_K_MAC_MIN                               0xC1
#define FDDI_FC_K_MAC_MAX                               0xCF    
#define FDDI_FC_K_ASYNC_LLC_MIN                 0x50
#define FDDI_FC_K_ASYNC_LLC_DEF                 0x54
#define FDDI_FC_K_ASYNC_LLC_MAX                 0x5F
#define FDDI_FC_K_SYNC_LLC_MIN                  0xD0
#define FDDI_FC_K_SYNC_LLC_MAX                  0xD7
#define FDDI_FC_K_IMPLEMENTOR_MIN               0x60
#define FDDI_FC_K_IMPLEMENTOR_MAX               0x6F
#define FDDI_FC_K_RESERVED_MIN                  0x70
#define FDDI_FC_K_RESERVED_MAX                  0x7F

/* Define LLC and SNAP constants */
#define FDDI_EXTENDED_SAP       0xAA
#define FDDI_UI_CMD                     0x03

/* Define 802.2 Type 1 header */
struct fddi_8022_1_hdr
        {
        __u8    dsap;                                   /* destination service access point */
        __u8    ssap;                                   /* source service access point */
        __u8    ctrl;                                   /* control byte #1 */
        } __attribute__ ((packed));

/* Define 802.2 Type 2 header */
struct fddi_8022_2_hdr
        {
        __u8    dsap;                                   /* destination service access point */
        __u8    ssap;                                   /* source service access point */
        __u8    ctrl_1;                                 /* control byte #1 */
        __u8    ctrl_2;                                 /* control byte #2 */
        } __attribute__ ((packed));

/* Define 802.2 SNAP header */
#define FDDI_K_OUI_LEN  3
struct fddi_snap_hdr
        {
        __u8    dsap;                                   /* always 0xAA */
        __u8    ssap;                                   /* always 0xAA */
        __u8    ctrl;                                   /* always 0x03 */
        __u8    oui[FDDI_K_OUI_LEN];    /* organizational universal id */
        __be16  ethertype;                              /* packet type ID field */
        } __attribute__ ((packed));

/* Define FDDI LLC frame header */
struct fddihdr
        {
        __u8    fc;                                             /* frame control */
        __u8    daddr[FDDI_K_ALEN];             /* destination address */
        __u8    saddr[FDDI_K_ALEN];             /* source address */
        union
                {
                struct fddi_8022_1_hdr          llc_8022_1;
                struct fddi_8022_2_hdr          llc_8022_2;
                struct fddi_snap_hdr            llc_snap;
                } hdr;
        } __attribute__ ((packed));

#ifdef __KERNEL__
#include <linux/netdevice.h>

/* Define FDDI statistics structure */
struct fddi_statistics {

        /* Generic statistics. */

        struct net_device_stats gen;

        /* Detailed FDDI statistics.  Adopted from RFC 1512 */

        __u8    smt_station_id[8];
        __u32   smt_op_version_id;
        __u32   smt_hi_version_id;
        __u32   smt_lo_version_id;
        __u8    smt_user_data[32];
        __u32   smt_mib_version_id;
        __u32   smt_mac_cts;
        __u32   smt_non_master_cts;
        __u32   smt_master_cts;
        __u32   smt_available_paths;
        __u32   smt_config_capabilities;
        __u32   smt_config_policy;
        __u32   smt_connection_policy;
        __u32   smt_t_notify;
        __u32   smt_stat_rpt_policy;
        __u32   smt_trace_max_expiration;
        __u32   smt_bypass_present;
        __u32   smt_ecm_state;
        __u32   smt_cf_state;
        __u32   smt_remote_disconnect_flag;
        __u32   smt_station_status;
        __u32   smt_peer_wrap_flag;
        __u32   smt_time_stamp;
        __u32   smt_transition_time_stamp;
        __u32   mac_frame_status_functions;
        __u32   mac_t_max_capability;
        __u32   mac_tvx_capability;
        __u32   mac_available_paths;
        __u32   mac_current_path;
        __u8    mac_upstream_nbr[FDDI_K_ALEN];
        __u8    mac_downstream_nbr[FDDI_K_ALEN];
        __u8    mac_old_upstream_nbr[FDDI_K_ALEN];
        __u8    mac_old_downstream_nbr[FDDI_K_ALEN];
        __u32   mac_dup_address_test;
        __u32   mac_requested_paths;
        __u32   mac_downstream_port_type;
        __u8    mac_smt_address[FDDI_K_ALEN];
        __u32   mac_t_req;
        __u32   mac_t_neg;
        __u32   mac_t_max;
        __u32   mac_tvx_value;
        __u32   mac_frame_cts;
        __u32   mac_copied_cts;
        __u32   mac_transmit_cts;
        __u32   mac_error_cts;
        __u32   mac_lost_cts;
        __u32   mac_frame_error_threshold;
        __u32   mac_frame_error_ratio;
        __u32   mac_rmt_state;
        __u32   mac_da_flag;
        __u32   mac_una_da_flag;
        __u32   mac_frame_error_flag;
        __u32   mac_ma_unitdata_available;
        __u32   mac_hardware_present;
        __u32   mac_ma_unitdata_enable;
        __u32   path_tvx_lower_bound;
        __u32   path_t_max_lower_bound;
        __u32   path_max_t_req;
        __u32   path_configuration[8];
        __u32   port_my_type[2];
        __u32   port_neighbor_type[2];
        __u32   port_connection_policies[2];
        __u32   port_mac_indicated[2];
        __u32   port_current_path[2];
        __u8    port_requested_paths[3*2];
        __u32   port_mac_placement[2];
        __u32   port_available_paths[2];
        __u32   port_pmd_class[2];
        __u32   port_connection_capabilities[2];
        __u32   port_bs_flag[2];
        __u32   port_lct_fail_cts[2];
        __u32   port_ler_estimate[2];
        __u32   port_lem_reject_cts[2];
        __u32   port_lem_cts[2];
        __u32   port_ler_cutoff[2];
        __u32   port_ler_alarm[2];
        __u32   port_connect_state[2];
        __u32   port_pcm_state[2];
        __u32   port_pc_withhold[2];
        __u32   port_ler_flag[2];
        __u32   port_hardware_present[2];
        };
#endif /* __KERNEL__ */

#endif  /* _LINUX_IF_FDDI_H */

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