/* Copyright (C) 1997-2020 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #ifndef _NETINET_IF_TR_H #define _NETINET_IF_TR_H 1 #include <sys/types.h> #include <stdint.h> /* IEEE 802.5 Token-Ring magic constants. The frame sizes omit the preamble and FCS/CRC (frame check sequence). */ #define TR_ALEN 6 /* Octets in one token-ring addr */ #define TR_HLEN (sizeof (struct trh_hdr) + sizeof (struct trllc)) #define AC 0x10 #define LLC_FRAME 0x40 /* LLC and SNAP constants */ #define EXTENDED_SAP 0xAA #define UI_CMD 0x03 /* This is an Token-Ring frame header. */ struct trh_hdr { uint8_t ac; /* access control field */ uint8_t fc; /* frame control field */ uint8_t daddr[TR_ALEN]; /* destination address */ uint8_t saddr[TR_ALEN]; /* source address */ uint16_t rcf; /* route control field */ uint16_t rseg[8]; /* routing registers */ }; /* This is an Token-Ring LLC structure */ struct trllc { uint8_t dsap; /* destination SAP */ uint8_t ssap; /* source SAP */ uint8_t llc; /* LLC control field */ uint8_t protid[3]; /* protocol id */ uint16_t ethertype; /* ether type field */ }; /* Token-Ring statistics collection data. */ struct tr_statistics { unsigned long rx_packets; /* total packets received */ unsigned long tx_packets; /* total packets transmitted */ unsigned long rx_bytes; /* total bytes received */ unsigned long tx_bytes; /* total bytes transmitted */ unsigned long rx_errors; /* bad packets received */ unsigned long tx_errors; /* packet transmit problems */ unsigned long rx_dropped; /* no space in linux buffers */ unsigned long tx_dropped; /* no space available in linux */ unsigned long multicast; /* multicast packets received */ unsigned long transmit_collision; /* detailed Token-Ring errors. See IBM Token-Ring Network Architecture for more info */ unsigned long line_errors; unsigned long internal_errors; unsigned long burst_errors; unsigned long A_C_errors; unsigned long abort_delimiters; unsigned long lost_frames; unsigned long recv_congest_count; unsigned long frame_copied_errors; unsigned long frequency_errors; unsigned long token_errors; unsigned long dummy1; }; /* source routing stuff */ #define TR_RII 0x80 #define TR_RCF_DIR_BIT 0x80 #define TR_RCF_LEN_MASK 0x1f00 #define TR_RCF_BROADCAST 0x8000 /* all-routes broadcast */ #define TR_RCF_LIMITED_BROADCAST 0xC000 /* single-route broadcast */ #define TR_RCF_FRAME2K 0x20 #define TR_RCF_BROADCAST_MASK 0xC000 #define TR_MAXRIFLEN 18 #ifdef __USE_MISC struct trn_hdr { uint8_t trn_ac; /* access control field */ uint8_t trn_fc; /* field control field */ uint8_t trn_dhost[TR_ALEN]; /* destination host */ uint8_t trn_shost[TR_ALEN]; /* source host */ uint16_t trn_rcf; /* route control field */ uint16_t trn_rseg[8]; /* routing registers */ }; #endif #endif /* netinet/if_tr.h */