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