The C and C++ Include Header Files

/usr/include/linux/atmsap.h


$ cat -n /usr/include/linux/atmsap.h

     1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
     2	/* atmsap.h - ATM Service Access Point addressing definitions */
     3	
     4	/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
     5	
     6	
     7	#ifndef _LINUX_ATMSAP_H
     8	#define _LINUX_ATMSAP_H
     9	
    10	#include <linux/atmapi.h>
    11	
    12	/*
    13	 * BEGIN_xx and END_xx markers are used for automatic generation of
    14	 * documentation. Do not change them.
    15	 */
    16	
    17	
    18	/*
    19	 * Layer 2 protocol identifiers
    20	 */
    21	
    22	/* BEGIN_L2 */
    23	#define ATM_L2_NONE	0	/* L2 not specified */
    24	#define ATM_L2_ISO1745  0x01	/* Basic mode ISO 1745 */
    25	#define ATM_L2_Q291	0x02	/* ITU-T Q.291 (Rec. I.441) */
    26	#define ATM_L2_X25_LL	0x06	/* ITU-T X.25, link layer */
    27	#define ATM_L2_X25_ML	0x07	/* ITU-T X.25, multilink */
    28	#define ATM_L2_LAPB	0x08	/* Extended LAPB, half-duplex (Rec. T.71) */
    29	#define ATM_L2_HDLC_ARM	0x09	/* HDLC ARM (ISO/IEC 4335) */
    30	#define ATM_L2_HDLC_NRM	0x0a	/* HDLC NRM (ISO/IEC 4335) */
    31	#define ATM_L2_HDLC_ABM	0x0b	/* HDLC ABM (ISO/IEC 4335) */
    32	#define ATM_L2_ISO8802	0x0c	/* LAN LLC (ISO/IEC 8802/2) */
    33	#define ATM_L2_X75	0x0d	/* ITU-T X.75, SLP */
    34	#define ATM_L2_Q922	0x0e	/* ITU-T Q.922 */
    35	#define ATM_L2_USER	0x10	/* user-specified */
    36	#define ATM_L2_ISO7776	0x11	/* ISO 7776 DTE-DTE */
    37	/* END_L2 */
    38	
    39	
    40	/*
    41	 * Layer 3 protocol identifiers
    42	 */
    43	
    44	/* BEGIN_L3 */
    45	#define ATM_L3_NONE	0	/* L3 not specified */
    46	#define ATM_L3_X25	0x06	/* ITU-T X.25, packet layer */
    47	#define ATM_L3_ISO8208	0x07	/* ISO/IEC 8208 */
    48	#define ATM_L3_X223	0x08	/* ITU-T X.223 | ISO/IEC 8878 */
    49	#define ATM_L3_ISO8473	0x09	/* ITU-T X.233 | ISO/IEC 8473 */
    50	#define ATM_L3_T70	0x0a	/* ITU-T T.70 minimum network layer */
    51	#define ATM_L3_TR9577	0x0b	/* ISO/IEC TR 9577 */
    52	#define ATM_L3_H310	0x0c	/* ITU-T Recommendation H.310 */
    53	#define ATM_L3_H321	0x0d	/* ITU-T Recommendation H.321 */
    54	#define ATM_L3_USER	0x10	/* user-specified */
    55	/* END_L3 */
    56	
    57	
    58	/*
    59	 * High layer identifiers
    60	 */
    61	
    62	/* BEGIN_HL */
    63	#define ATM_HL_NONE	0	/* HL not specified */
    64	#define ATM_HL_ISO	0x01	/* ISO */
    65	#define ATM_HL_USER	0x02	/* user-specific */
    66	#define ATM_HL_HLP	0x03	/* high layer profile - UNI 3.0 only */
    67	#define ATM_HL_VENDOR	0x04	/* vendor-specific application identifier */
    68	/* END_HL */
    69	
    70	
    71	/*
    72	 * ITU-T coded mode of operation
    73	 */
    74	
    75	/* BEGIN_IMD */
    76	#define ATM_IMD_NONE	 0	/* mode not specified */
    77	#define ATM_IMD_NORMAL	 1	/* normal mode of operation */
    78	#define ATM_IMD_EXTENDED 2	/* extended mode of operation */
    79	/* END_IMD */
    80	
    81	/*
    82	 * H.310 code points
    83	 */
    84	
    85	#define ATM_TT_NONE	0	/* terminal type not specified */
    86	#define ATM_TT_RX	1	/* receive only */
    87	#define ATM_TT_TX	2	/* send only */
    88	#define ATM_TT_RXTX	3	/* receive and send */
    89	
    90	#define ATM_MC_NONE	0	/* no multiplexing */
    91	#define ATM_MC_TS	1	/* transport stream (TS) */
    92	#define ATM_MC_TS_FEC	2	/* transport stream with forward error corr. */
    93	#define ATM_MC_PS	3	/* program stream (PS) */
    94	#define ATM_MC_PS_FEC	4	/* program stream with forward error corr. */
    95	#define ATM_MC_H221	5	/* ITU-T Rec. H.221 */
    96	
    97	/*
    98	 * SAP structures
    99	 */
   100	
   101	#define ATM_MAX_HLI	8	/* maximum high-layer information length */
   102	
   103	
   104	struct atm_blli {
   105	    unsigned char l2_proto;	/* layer 2 protocol */
   106	    union {
   107		struct {
   108		    unsigned char mode;	/* mode of operation (ATM_IMD_xxx), 0 if */
   109					/* absent */
   110		    unsigned char window; /* window size (k), 1-127 (0 to omit) */
   111		} itu;			/* ITU-T encoding */
   112		unsigned char user;	/* user-specified l2 information */
   113	    } l2;
   114	    unsigned char l3_proto;	/* layer 3 protocol */
   115	    union {
   116		struct {
   117		    unsigned char mode;	/* mode of operation (ATM_IMD_xxx), 0 if */
   118					/* absent */
   119		    unsigned char def_size; /* default packet size (log2), 4-12 (0 to */
   120					    /* omit) */
   121		    unsigned char window;/* packet window size, 1-127 (0 to omit) */
   122		} itu;			/* ITU-T encoding */
   123		unsigned char user;	/* user specified l3 information */
   124		struct {		      /* if l3_proto = ATM_L3_H310 */
   125		    unsigned char term_type;  /* terminal type */
   126		    unsigned char fw_mpx_cap; /* forward multiplexing capability */
   127					      /* only if term_type != ATM_TT_NONE */
   128		    unsigned char bw_mpx_cap; /* backward multiplexing capability */
   129					      /* only if term_type != ATM_TT_NONE */
   130		} h310;
   131		struct {		  /* if l3_proto = ATM_L3_TR9577 */
   132		    unsigned char ipi;	  /* initial protocol id */
   133		    unsigned char snap[5];/* IEEE 802.1 SNAP identifier */
   134					  /* (only if ipi == NLPID_IEEE802_1_SNAP) */
   135		} tr9577;
   136	    } l3;
   137	} __ATM_API_ALIGN;
   138	
   139	
   140	struct atm_bhli {
   141	    unsigned char hl_type;	/* high layer information type */
   142	    unsigned char hl_length;	/* length (only if hl_type == ATM_HL_USER || */
   143					/* hl_type == ATM_HL_ISO) */
   144	    unsigned char hl_info[ATM_MAX_HLI];/* high layer information */
   145	};
   146	
   147	
   148	#define ATM_MAX_BLLI	3		/* maximum number of BLLI elements */
   149	
   150	
   151	struct atm_sap {
   152		struct atm_bhli bhli;		/* local SAP, high-layer information */
   153		struct atm_blli blli[ATM_MAX_BLLI] __ATM_API_ALIGN;
   154						/* local SAP, low-layer info */
   155	};
   156	
   157	
   158	static __inline__ int blli_in_use(struct atm_blli blli)
   159	{
   160		return blli.l2_proto || blli.l3_proto;
   161	}
   162	
   163	#endif