1/*
2 * These are the public elements of the Linux kernel X.25 implementation.
3 *
4 * 	History
5 *	mar/20/00	Daniela Squassoni Disabling/enabling of facilities
6 *					  negotiation.
7 */
8
9#ifndef	X25_KERNEL_H
10#define	X25_KERNEL_H
11
12#define	SIOCX25GSUBSCRIP	(SIOCPROTOPRIVATE + 0)
13#define	SIOCX25SSUBSCRIP	(SIOCPROTOPRIVATE + 1)
14#define	SIOCX25GFACILITIES	(SIOCPROTOPRIVATE + 2)
15#define	SIOCX25SFACILITIES	(SIOCPROTOPRIVATE + 3)
16#define	SIOCX25GCALLUSERDATA	(SIOCPROTOPRIVATE + 4)
17#define	SIOCX25SCALLUSERDATA	(SIOCPROTOPRIVATE + 5)
18#define	SIOCX25GCAUSEDIAG	(SIOCPROTOPRIVATE + 6)
19
20/*
21 *	Values for {get,set}sockopt.
22 */
23#define	X25_QBITINCL		1
24
25/*
26 *	X.25 Packet Size values.
27 */
28#define	X25_PS16		4
29#define	X25_PS32		5
30#define	X25_PS64		6
31#define	X25_PS128		7
32#define	X25_PS256		8
33#define	X25_PS512		9
34#define	X25_PS1024		10
35#define	X25_PS2048		11
36#define	X25_PS4096		12
37
38/*
39 * An X.121 address, it is held as ASCII text, null terminated, up to 15
40 * digits and a null terminator.
41 */
42typedef struct {
43	char		x25_addr[16];
44} x25_address;
45
46/*
47 *	Linux X.25 Address structure, used for bind, and connect mostly.
48 */
49struct sockaddr_x25 {
50	sa_family_t	sx25_family;		/* Must be AF_X25 */
51	x25_address	sx25_addr;		/* X.121 Address */
52};
53
54/*
55 *	DTE/DCE subscription options.
56 *
57 *      As this is missing lots of options, user should expect major
58 *	changes of this structure in 2.5.x which might break compatibilty.
59 *      The somewhat ugly dimension 200-sizeof() is needed to maintain
60 *	backward compatibility.
61 */
62struct x25_subscrip_struct {
63	char device[200-sizeof(unsigned long)];
64	unsigned long	global_facil_mask;	/* 0 to disable negotiation */
65	unsigned int	extended;
66};
67
68/* values for above global_facil_mask */
69
70#define	X25_MASK_REVERSE	0x01
71#define	X25_MASK_THROUGHPUT	0x02
72#define	X25_MASK_PACKET_SIZE	0x04
73#define	X25_MASK_WINDOW_SIZE	0x08
74
75
76
77/*
78 *	Routing table control structure.
79 */
80struct x25_route_struct {
81	x25_address	address;
82	unsigned int	sigdigits;
83	char		device[200];
84};
85
86/*
87 *	Facilities structure.
88 */
89struct x25_facilities {
90	unsigned int	winsize_in, winsize_out;
91	unsigned int	pacsize_in, pacsize_out;
92	unsigned int	throughput;
93	unsigned int	reverse;
94};
95
96/*
97 *	Call User Data structure.
98 */
99struct x25_calluserdata {
100	unsigned int	cudlength;
101	unsigned char	cuddata[128];
102};
103
104/*
105 *	Call clearing Cause and Diagnostic structure.
106 */
107struct x25_causediag {
108	unsigned char	cause;
109	unsigned char	diagnostic;
110};
111
112#endif
113