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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)
Andrew Hendry386e50c2009-11-18 23:30:41 -080028#define SIOCX25SCAUSEDIAG (SIOCPROTOPRIVATE + 12)
Linus Torvalds1da177e2005-04-16 15:20:36 -070029
30/*
31 * Values for {get,set}sockopt.
32 */
33#define X25_QBITINCL 1
34
35/*
36 * X.25 Packet Size values.
37 */
38#define X25_PS16 4
39#define X25_PS32 5
40#define X25_PS64 6
41#define X25_PS128 7
42#define X25_PS256 8
43#define X25_PS512 9
44#define X25_PS1024 10
45#define X25_PS2048 11
46#define X25_PS4096 12
47
48/*
49 * An X.121 address, it is held as ASCII text, null terminated, up to 15
50 * digits and a null terminator.
51 */
52struct x25_address {
53 char x25_addr[16];
54};
55
56/*
57 * Linux X.25 Address structure, used for bind, and connect mostly.
58 */
59struct sockaddr_x25 {
60 sa_family_t sx25_family; /* Must be AF_X25 */
61 struct x25_address sx25_addr; /* X.121 Address */
62};
63
64/*
65 * DTE/DCE subscription options.
66 *
67 * As this is missing lots of options, user should expect major
68 * changes of this structure in 2.5.x which might break compatibilty.
69 * The somewhat ugly dimension 200-sizeof() is needed to maintain
70 * backward compatibility.
71 */
72struct x25_subscrip_struct {
73 char device[200-sizeof(unsigned long)];
74 unsigned long global_facil_mask; /* 0 to disable negotiation */
75 unsigned int extended;
76};
77
78/* values for above global_facil_mask */
79
80#define X25_MASK_REVERSE 0x01
81#define X25_MASK_THROUGHPUT 0x02
82#define X25_MASK_PACKET_SIZE 0x04
83#define X25_MASK_WINDOW_SIZE 0x08
84
Shaun Pereiraa64b7b92006-03-22 00:01:31 -080085#define X25_MASK_CALLING_AE 0x10
86#define X25_MASK_CALLED_AE 0x20
Linus Torvalds1da177e2005-04-16 15:20:36 -070087
88
89/*
90 * Routing table control structure.
91 */
92struct x25_route_struct {
93 struct x25_address address;
94 unsigned int sigdigits;
95 char device[200];
96};
97
98/*
99 * Facilities structure.
100 */
101struct x25_facilities {
102 unsigned int winsize_in, winsize_out;
103 unsigned int pacsize_in, pacsize_out;
104 unsigned int throughput;
105 unsigned int reverse;
106};
107
108/*
Shaun Pereiraa64b7b92006-03-22 00:01:31 -0800109* ITU DTE facilities
110* Only the called and calling address
111* extension are currently implemented.
112* The rest are in place to avoid the struct
113* changing size if someone needs them later
114*/
115
116struct x25_dte_facilities {
117 __u16 delay_cumul;
118 __u16 delay_target;
119 __u16 delay_max;
120 __u8 min_throughput;
121 __u8 expedited;
122 __u8 calling_len;
123 __u8 called_len;
124 __u8 calling_ae[20];
125 __u8 called_ae[20];
126};
127
128/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129 * Call User Data structure.
130 */
131struct x25_calluserdata {
132 unsigned int cudlength;
133 unsigned char cuddata[128];
134};
135
136/*
137 * Call clearing Cause and Diagnostic structure.
138 */
139struct x25_causediag {
140 unsigned char cause;
141 unsigned char diagnostic;
142};
143
Shaun Pereiracb65d502005-06-22 22:15:01 -0700144/*
145 * Further optional call user data match length selection
146 */
147struct x25_subaddr {
148 unsigned int cudmatchlength;
149};
150
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151#endif