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 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 */ 51 struct x25_address { 52 char x25_addr[16]; 53 }; 54 55 /* 56 * Linux X.25 Address structure, used for bind, and connect mostly. 57 */ 58 struct 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 */ 71 struct 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 84 #define X25_MASK_CALLING_AE 0x10 85 #define X25_MASK_CALLED_AE 0x20 86 87 88 /* 89 * Routing table control structure. 90 */ 91 struct x25_route_struct { 92 struct x25_address address; 93 unsigned int sigdigits; 94 char device[200]; 95 }; 96 97 /* 98 * Facilities structure. 99 */ 100 struct 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 /* 108 * 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 */ 114 115 struct 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 /* 128 * Call User Data structure. 129 */ 130 struct x25_calluserdata { 131 unsigned int cudlength; 132 unsigned char cuddata[128]; 133 }; 134 135 /* 136 * Call clearing Cause and Diagnostic structure. 137 */ 138 struct x25_causediag { 139 unsigned char cause; 140 unsigned char diagnostic; 141 }; 142 143 /* 144 * Further optional call user data match length selection 145 */ 146 struct x25_subaddr { 147 unsigned int cudmatchlength; 148 }; 149 150 #endif 151