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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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.
Shaun Pereiracb65d502005-06-22 22:15:01 -07007 * apr/02/05 Shaun Pereira Selective sub address matching with
8 * call user data
Linus Torvalds1da177e2005-04-16 15:20:36 -07009 */
10
11#ifndef X25_KERNEL_H
12#define X25_KERNEL_H
13
Shaun Pereiraa64b7b92006-03-22 00:01:31 -080014#include <linux/types.h>
15
Linus Torvalds1da177e2005-04-16 15:20:36 -070016#define SIOCX25GSUBSCRIP (SIOCPROTOPRIVATE + 0)
17#define SIOCX25SSUBSCRIP (SIOCPROTOPRIVATE + 1)
18#define SIOCX25GFACILITIES (SIOCPROTOPRIVATE + 2)
19#define SIOCX25SFACILITIES (SIOCPROTOPRIVATE + 3)
20#define SIOCX25GCALLUSERDATA (SIOCPROTOPRIVATE + 4)
21#define SIOCX25SCALLUSERDATA (SIOCPROTOPRIVATE + 5)
22#define SIOCX25GCAUSEDIAG (SIOCPROTOPRIVATE + 6)
Shaun Pereiracb65d502005-06-22 22:15:01 -070023#define SIOCX25SCUDMATCHLEN (SIOCPROTOPRIVATE + 7)
Shaun Pereiraebc3f642005-06-22 22:16:17 -070024#define SIOCX25CALLACCPTAPPRV (SIOCPROTOPRIVATE + 8)
25#define SIOCX25SENDCALLACCPT (SIOCPROTOPRIVATE + 9)
Shaun Pereiraa64b7b92006-03-22 00:01:31 -080026#define SIOCX25GDTEFACILITIES (SIOCPROTOPRIVATE + 10)
27#define SIOCX25SDTEFACILITIES (SIOCPROTOPRIVATE + 11)
Linus Torvalds1da177e2005-04-16 15:20:36 -070028
29/*
30 * Values for {get,set}sockopt.
31 */
32#define X25_QBITINCL 1
33
34/*
35 * X.25 Packet Size values.
36 */
37#define X25_PS16 4
38#define X25_PS32 5
39#define X25_PS64 6
40#define X25_PS128 7
41#define X25_PS256 8
42#define X25_PS512 9
43#define X25_PS1024 10
44#define X25_PS2048 11
45#define X25_PS4096 12
46
47/*
48 * An X.121 address, it is held as ASCII text, null terminated, up to 15
49 * digits and a null terminator.
50 */
51struct x25_address {
52 char x25_addr[16];
53};
54
55/*
56 * Linux X.25 Address structure, used for bind, and connect mostly.
57 */
58struct sockaddr_x25 {
59 sa_family_t sx25_family; /* Must be AF_X25 */
60 struct x25_address sx25_addr; /* X.121 Address */
61};
62
63/*
64 * DTE/DCE subscription options.
65 *
66 * As this is missing lots of options, user should expect major
67 * changes of this structure in 2.5.x which might break compatibilty.
68 * The somewhat ugly dimension 200-sizeof() is needed to maintain
69 * backward compatibility.
70 */
71struct x25_subscrip_struct {
72 char device[200-sizeof(unsigned long)];
73 unsigned long global_facil_mask; /* 0 to disable negotiation */
74 unsigned int extended;
75};
76
77/* values for above global_facil_mask */
78
79#define X25_MASK_REVERSE 0x01
80#define X25_MASK_THROUGHPUT 0x02
81#define X25_MASK_PACKET_SIZE 0x04
82#define X25_MASK_WINDOW_SIZE 0x08
83
Shaun Pereiraa64b7b92006-03-22 00:01:31 -080084#define X25_MASK_CALLING_AE 0x10
85#define X25_MASK_CALLED_AE 0x20
Linus Torvalds1da177e2005-04-16 15:20:36 -070086
87
88/*
89 * Routing table control structure.
90 */
91struct x25_route_struct {
92 struct x25_address address;
93 unsigned int sigdigits;
94 char device[200];
95};
96
97/*
98 * Facilities structure.
99 */
100struct x25_facilities {
101 unsigned int winsize_in, winsize_out;
102 unsigned int pacsize_in, pacsize_out;
103 unsigned int throughput;
104 unsigned int reverse;
105};
106
107/*
Shaun Pereiraa64b7b92006-03-22 00:01:31 -0800108* ITU DTE facilities
109* Only the called and calling address
110* extension are currently implemented.
111* The rest are in place to avoid the struct
112* changing size if someone needs them later
113*/
114
115struct x25_dte_facilities {
116 __u16 delay_cumul;
117 __u16 delay_target;
118 __u16 delay_max;
119 __u8 min_throughput;
120 __u8 expedited;
121 __u8 calling_len;
122 __u8 called_len;
123 __u8 calling_ae[20];
124 __u8 called_ae[20];
125};
126
127/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128 * Call User Data structure.
129 */
130struct x25_calluserdata {
131 unsigned int cudlength;
132 unsigned char cuddata[128];
133};
134
135/*
136 * Call clearing Cause and Diagnostic structure.
137 */
138struct x25_causediag {
139 unsigned char cause;
140 unsigned char diagnostic;
141};
142
Shaun Pereiracb65d502005-06-22 22:15:01 -0700143/*
144 * Further optional call user data match length selection
145 */
146struct x25_subaddr {
147 unsigned int cudmatchlength;
148};
149
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150#endif