/* Copyright (C) 1997-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _NETINET_IF_TR_H
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#define _NETINET_IF_TR_H 1
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#include <sys/types.h>
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#include <stdint.h>
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/* IEEE 802.5 Token-Ring magic constants. The frame sizes omit the preamble
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and FCS/CRC (frame check sequence). */
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#define TR_ALEN 6 /* Octets in one token-ring addr */
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#define TR_HLEN (sizeof (struct trh_hdr) + sizeof (struct trllc))
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#define AC 0x10
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#define LLC_FRAME 0x40
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/* LLC and SNAP constants */
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#define EXTENDED_SAP 0xAA
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#define UI_CMD 0x03
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/* This is an Token-Ring frame header. */
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struct trh_hdr
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{
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uint8_t ac; /* access control field */
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uint8_t fc; /* frame control field */
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uint8_t daddr[TR_ALEN]; /* destination address */
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uint8_t saddr[TR_ALEN]; /* source address */
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uint16_t rcf; /* route control field */
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uint16_t rseg[8]; /* routing registers */
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};
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/* This is an Token-Ring LLC structure */
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struct trllc
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{
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uint8_t dsap; /* destination SAP */
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uint8_t ssap; /* source SAP */
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uint8_t llc; /* LLC control field */
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uint8_t protid[3]; /* protocol id */
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uint16_t ethertype; /* ether type field */
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};
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/* Token-Ring statistics collection data. */
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struct tr_statistics
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{
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unsigned long rx_packets; /* total packets received */
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unsigned long tx_packets; /* total packets transmitted */
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unsigned long rx_bytes; /* total bytes received */
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unsigned long tx_bytes; /* total bytes transmitted */
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unsigned long rx_errors; /* bad packets received */
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unsigned long tx_errors; /* packet transmit problems */
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unsigned long rx_dropped; /* no space in linux buffers */
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unsigned long tx_dropped; /* no space available in linux */
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unsigned long multicast; /* multicast packets received */
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unsigned long transmit_collision;
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/* detailed Token-Ring errors. See IBM Token-Ring Network
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Architecture for more info */
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unsigned long line_errors;
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unsigned long internal_errors;
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unsigned long burst_errors;
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unsigned long A_C_errors;
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unsigned long abort_delimiters;
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unsigned long lost_frames;
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unsigned long recv_congest_count;
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unsigned long frame_copied_errors;
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unsigned long frequency_errors;
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unsigned long token_errors;
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unsigned long dummy1;
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};
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/* source routing stuff */
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#define TR_RII 0x80
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#define TR_RCF_DIR_BIT 0x80
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#define TR_RCF_LEN_MASK 0x1f00
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#define TR_RCF_BROADCAST 0x8000 /* all-routes broadcast */
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#define TR_RCF_LIMITED_BROADCAST 0xC000 /* single-route broadcast */
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#define TR_RCF_FRAME2K 0x20
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#define TR_RCF_BROADCAST_MASK 0xC000
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#define TR_MAXRIFLEN 18
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#ifdef __USE_MISC
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struct trn_hdr
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{
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uint8_t trn_ac; /* access control field */
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uint8_t trn_fc; /* field control field */
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uint8_t trn_dhost[TR_ALEN]; /* destination host */
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uint8_t trn_shost[TR_ALEN]; /* source host */
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uint16_t trn_rcf; /* route control field */
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uint16_t trn_rseg[8]; /* routing registers */
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};
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#endif
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#endif /* netinet/if_tr.h */
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