The C and C++ Include Header Files

/usr/include/netinet/if_tr.h


$ cat -n /usr/include/netinet/if_tr.h

     1	/* Copyright (C) 1997-2024 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	   <https://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 */