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 _UAPILINUX_ATM_TCP_H
9#define _UAPILINUX_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
21struct 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
35struct 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 /* _UAPILINUX_ATM_TCP_H */
63