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 
22 struct 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 
36 struct 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 
64 struct 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 
71 extern struct atm_tcp_ops atm_tcp_ops;
72 
73 #endif
74 
75 #endif
76