1/* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
2	       driver-specific utilities) */
3
4/* Written 1997-2000 by Werner Almesberger, EPFL LRC/ICA */
5
6
7#ifndef LINUX_ATM_TCP_H
8#define LINUX_ATM_TCP_H
9
10#include <linux/atmapi.h>
11
12#ifdef __KERNEL__
13#include <linux/types.h>
14#endif
15#include <linux/atmioc.h>
16
17
18/*
19 * All values in struct atmtcp_hdr are in network byte order
20 */
21
22struct atmtcp_hdr {
23	uint16_t	vpi;
24	uint16_t	vci;
25	uint32_t	length;		/* ... of data part */
26};
27
28/*
29 * All values in struct atmtcp_command are in host byte order
30 */
31
32#define ATMTCP_HDR_MAGIC	(~0)	/* this length indicates a command */
33#define ATMTCP_CTRL_OPEN	1	/* request/reply */
34#define ATMTCP_CTRL_CLOSE	2	/* request/reply */
35
36struct atmtcp_control {
37	struct atmtcp_hdr hdr;	/* must be first */
38	int type;		/* message type; both directions */
39	atm_kptr_t vcc;		/* both directions */
40	struct sockaddr_atmpvc addr; /* suggested value from kernel */
41	struct atm_qos	qos;	/* both directions */
42	int result;		/* to kernel only */
43} __ATM_API_ALIGN;
44
45/*
46 * Field usage:
47 * Messge type	dir.	hdr.v?i	type	addr	qos	vcc	result
48 * -----------  ----	------- ----	----	---	---	------
49 * OPEN		K->D	Y	Y	Y	Y	Y	0
50 * OPEN		D->K	-	Y	Y	Y	Y	Y
51 * CLOSE	K->D	-	-	Y	-	Y	0
52 * CLOSE	D->K	-	-	-	-	Y	Y
53 */
54
55#define SIOCSIFATMTCP	_IO('a',ATMIOC_ITF)	/* set ATMTCP mode */
56#define ATMTCP_CREATE	_IO('a',ATMIOC_ITF+14)	/* create persistent ATMTCP
57						   interface */
58#define ATMTCP_REMOVE	_IO('a',ATMIOC_ITF+15)	/* destroy persistent ATMTCP
59						   interface */
60
61
62#ifdef __KERNEL__
63
64struct atm_tcp_ops {
65	int (*attach)(struct atm_vcc *vcc,int itf);
66	int (*create_persistent)(int itf);
67	int (*remove_persistent)(int itf);
68	struct module *owner;
69};
70
71extern struct atm_tcp_ops atm_tcp_ops;
72
73#endif
74
75#endif
76