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 * apr/02/05 Shaun Pereira Selective sub address matching with 8 * call user data 9 */ 10 11#ifndef X25_KERNEL_H 12#define X25_KERNEL_H 13 14#include <linux/types.h> 15 16#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) 23#define SIOCX25SCUDMATCHLEN (SIOCPROTOPRIVATE + 7) 24#define SIOCX25CALLACCPTAPPRV (SIOCPROTOPRIVATE + 8) 25#define SIOCX25SENDCALLACCPT (SIOCPROTOPRIVATE + 9) 26#define SIOCX25GDTEFACILITIES (SIOCPROTOPRIVATE + 10) 27#define SIOCX25SDTEFACILITIES (SIOCPROTOPRIVATE + 11) 28#define SIOCX25SCAUSEDIAG (SIOCPROTOPRIVATE + 12) 29 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 85#define X25_MASK_CALLING_AE 0x10 86#define X25_MASK_CALLED_AE 0x20 87 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/* 109* 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/* 129 * 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}; 143 144/* 145 * Further optional call user data match length selection 146 */ 147struct x25_subaddr { 148 unsigned int cudmatchlength; 149}; 150 151#endif 152