The C and C++ Include Header Files

/usr/include/linux/atm_tcp.h


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

     1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
     2	/* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
     3		       driver-specific utilities) */
     4	
     5	/* Written 1997-2000 by Werner Almesberger, EPFL LRC/ICA */
     6	
     7	
     8	#ifndef LINUX_ATM_TCP_H
     9	#define LINUX_ATM_TCP_H
    10	
    11	#include <linux/atmapi.h>
    12	#include <linux/atm.h>
    13	#include <linux/atmioc.h>
    14	#include <linux/types.h>
    15	
    16	
    17	/*
    18	 * All values in struct atmtcp_hdr are in network byte order
    19	 */
    20	
    21	struct atmtcp_hdr {
    22		__u16	vpi;
    23		__u16	vci;
    24		__u32	length;		/* ... of data part */
    25	};
    26	
    27	/*
    28	 * All values in struct atmtcp_command are in host byte order
    29	 */
    30	
    31	#define ATMTCP_HDR_MAGIC	(~0)	/* this length indicates a command */
    32	#define ATMTCP_CTRL_OPEN	1	/* request/reply */
    33	#define ATMTCP_CTRL_CLOSE	2	/* request/reply */
    34	
    35	struct atmtcp_control {
    36		struct atmtcp_hdr hdr;	/* must be first */
    37		int type;		/* message type; both directions */
    38		atm_kptr_t vcc;		/* both directions */
    39		struct sockaddr_atmpvc addr; /* suggested value from kernel */
    40		struct atm_qos	qos;	/* both directions */
    41		int result;		/* to kernel only */
    42	} __ATM_API_ALIGN;
    43	
    44	/*
    45	 * Field usage:
    46	 * Messge type	dir.	hdr.v?i	type	addr	qos	vcc	result
    47	 * -----------  ----	------- ----	----	---	---	------
    48	 * OPEN		K->D	Y	Y	Y	Y	Y	0
    49	 * OPEN		D->K	-	Y	Y	Y	Y	Y
    50	 * CLOSE	K->D	-	-	Y	-	Y	0
    51	 * CLOSE	D->K	-	-	-	-	Y	Y
    52	 */
    53	
    54	#define SIOCSIFATMTCP	_IO('a',ATMIOC_ITF)	/* set ATMTCP mode */
    55	#define ATMTCP_CREATE	_IO('a',ATMIOC_ITF+14)	/* create persistent ATMTCP
    56							   interface */
    57	#define ATMTCP_REMOVE	_IO('a',ATMIOC_ITF+15)	/* destroy persistent ATMTCP
    58							   interface */
    59	
    60	
    61	
    62	#endif /* LINUX_ATM_TCP_H */