sysdeps/unix/sysv/linux/netinet/if_tr.h

   1 /* Copyright (C) 1997-2016 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _NETINET_IF_TR_H
  19 #define _NETINET_IF_TR_H 1
  20
  21 #include <sys/types.h>
  22 #include <stdint.h>
  23
  24 /* IEEE 802.5 Token-Ring magic constants.  The frame sizes omit the preamble
  25    and FCS/CRC (frame check sequence). */
  26 #define TR_ALEN         6               /* Octets in one token-ring addr */
  27 #define TR_HLEN         (sizeof (struct trh_hdr) + sizeof (struct trllc))
  28 #define AC              0x10
  29 #define LLC_FRAME       0x40
  30
  31 /* LLC and SNAP constants */
  32 #define EXTENDED_SAP    0xAA
  33 #define UI_CMD          0x03
  34
  35 /* This is an Token-Ring frame header. */
  36 struct trh_hdr
  37 {
  38   uint8_t  ac;                  /* access control field */
  39   uint8_t  fc;                  /* frame control field */
  40   uint8_t  daddr[TR_ALEN];      /* destination address */
  41   uint8_t  saddr[TR_ALEN];      /* source address */
  42   uint16_t rcf;                 /* route control field */
  43   uint16_t rseg[8];             /* routing registers */
  44 };
  45
  46 /* This is an Token-Ring LLC structure */
  47 struct trllc
  48 {
  49   uint8_t  dsap;                /* destination SAP */
  50   uint8_t  ssap;                /* source SAP */
  51   uint8_t  llc;                 /* LLC control field */
  52   uint8_t  protid[3];           /* protocol id */
  53   uint16_t ethertype;           /* ether type field */
  54 };
  55
  56 /* Token-Ring statistics collection data. */
  57 struct tr_statistics
  58 {
  59   unsigned long rx_packets;     /* total packets received       */
  60   unsigned long tx_packets;     /* total packets transmitted    */
  61   unsigned long rx_bytes;       /* total bytes received         */
  62   unsigned long tx_bytes;       /* total bytes transmitted      */
  63   unsigned long rx_errors;      /* bad packets received         */
  64   unsigned long tx_errors;      /* packet transmit problems     */
  65   unsigned long rx_dropped;     /* no space in linux buffers    */
  66   unsigned long tx_dropped;     /* no space available in linux  */
  67   unsigned long multicast;      /* multicast packets received   */
  68   unsigned long transmit_collision;
  69
  70   /* detailed Token-Ring errors. See IBM Token-Ring Network
  71      Architecture for more info */
  72
  73   unsigned long line_errors;
  74   unsigned long internal_errors;
  75   unsigned long burst_errors;
  76   unsigned long A_C_errors;
  77   unsigned long abort_delimiters;
  78   unsigned long lost_frames;
  79   unsigned long recv_congest_count;
  80   unsigned long frame_copied_errors;
  81   unsigned long frequency_errors;
  82   unsigned long token_errors;
  83   unsigned long dummy1;
  84 };
  85
  86 /* source routing stuff */
  87 #define TR_RII                  0x80
  88 #define TR_RCF_DIR_BIT          0x80
  89 #define TR_RCF_LEN_MASK         0x1f00
  90 #define TR_RCF_BROADCAST        0x8000  /* all-routes broadcast */
  91 #define TR_RCF_LIMITED_BROADCAST 0xC000 /* single-route broadcast */
  92 #define TR_RCF_FRAME2K          0x20
  93 #define TR_RCF_BROADCAST_MASK   0xC000
  94 #define TR_MAXRIFLEN            18
  95
  96 #ifdef __USE_MISC
  97
  98 struct trn_hdr
  99 {
 100   uint8_t trn_ac;                /* access control field */
 101   uint8_t trn_fc;                /* field control field */
 102   uint8_t trn_dhost[TR_ALEN];    /* destination host */
 103   uint8_t trn_shost[TR_ALEN];    /* source host */
 104   uint16_t trn_rcf;              /* route control field */
 105   uint16_t trn_rseg[8];          /* routing registers */
 106 };
 107
 108 #endif
 109
 110 #endif  /* netinet/if_tr.h */