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 #include <linux/socket.h> 16 17 #define SIOCX25GSUBSCRIP (SIOCPROTOPRIVATE + 0) 18 #define SIOCX25SSUBSCRIP (SIOCPROTOPRIVATE + 1) 19 #define SIOCX25GFACILITIES (SIOCPROTOPRIVATE + 2) 20 #define SIOCX25SFACILITIES (SIOCPROTOPRIVATE + 3) 21 #define SIOCX25GCALLUSERDATA (SIOCPROTOPRIVATE + 4) 22 #define SIOCX25SCALLUSERDATA (SIOCPROTOPRIVATE + 5) 23 #define SIOCX25GCAUSEDIAG (SIOCPROTOPRIVATE + 6) 24 #define SIOCX25SCUDMATCHLEN (SIOCPROTOPRIVATE + 7) 25 #define SIOCX25CALLACCPTAPPRV (SIOCPROTOPRIVATE + 8) 26 #define SIOCX25SENDCALLACCPT (SIOCPROTOPRIVATE + 9) 27 #define SIOCX25GDTEFACILITIES (SIOCPROTOPRIVATE + 10) 28 #define SIOCX25SDTEFACILITIES (SIOCPROTOPRIVATE + 11) 29 #define SIOCX25SCAUSEDIAG (SIOCPROTOPRIVATE + 12) 30 31 /* 32 * Values for {get,set}sockopt. 33 */ 34 #define X25_QBITINCL 1 35 36 /* 37 * X.25 Packet Size values. 38 */ 39 #define X25_PS16 4 40 #define X25_PS32 5 41 #define X25_PS64 6 42 #define X25_PS128 7 43 #define X25_PS256 8 44 #define X25_PS512 9 45 #define X25_PS1024 10 46 #define X25_PS2048 11 47 #define X25_PS4096 12 48 49 /* 50 * An X.121 address, it is held as ASCII text, null terminated, up to 15 51 * digits and a null terminator. 52 */ 53 struct x25_address { 54 char x25_addr[16]; 55 }; 56 57 /* 58 * Linux X.25 Address structure, used for bind, and connect mostly. 59 */ 60 struct sockaddr_x25 { 61 __kernel_sa_family_t sx25_family; /* Must be AF_X25 */ 62 struct x25_address sx25_addr; /* X.121 Address */ 63 }; 64 65 /* 66 * DTE/DCE subscription options. 67 * 68 * As this is missing lots of options, user should expect major 69 * changes of this structure in 2.5.x which might break compatibilty. 70 * The somewhat ugly dimension 200-sizeof() is needed to maintain 71 * backward compatibility. 72 */ 73 struct x25_subscrip_struct { 74 char device[200-sizeof(unsigned long)]; 75 unsigned long global_facil_mask; /* 0 to disable negotiation */ 76 unsigned int extended; 77 }; 78 79 /* values for above global_facil_mask */ 80 81 #define X25_MASK_REVERSE 0x01 82 #define X25_MASK_THROUGHPUT 0x02 83 #define X25_MASK_PACKET_SIZE 0x04 84 #define X25_MASK_WINDOW_SIZE 0x08 85 86 #define X25_MASK_CALLING_AE 0x10 87 #define X25_MASK_CALLED_AE 0x20 88 89 90 /* 91 * Routing table control structure. 92 */ 93 struct x25_route_struct { 94 struct x25_address address; 95 unsigned int sigdigits; 96 char device[200]; 97 }; 98 99 /* 100 * Facilities structure. 101 */ 102 struct x25_facilities { 103 unsigned int winsize_in, winsize_out; 104 unsigned int pacsize_in, pacsize_out; 105 unsigned int throughput; 106 unsigned int reverse; 107 }; 108 109 /* 110 * ITU DTE facilities 111 * Only the called and calling address 112 * extension are currently implemented. 113 * The rest are in place to avoid the struct 114 * changing size if someone needs them later 115 */ 116 117 struct x25_dte_facilities { 118 __u16 delay_cumul; 119 __u16 delay_target; 120 __u16 delay_max; 121 __u8 min_throughput; 122 __u8 expedited; 123 __u8 calling_len; 124 __u8 called_len; 125 __u8 calling_ae[20]; 126 __u8 called_ae[20]; 127 }; 128 129 /* 130 * Call User Data structure. 131 */ 132 struct x25_calluserdata { 133 unsigned int cudlength; 134 unsigned char cuddata[128]; 135 }; 136 137 /* 138 * Call clearing Cause and Diagnostic structure. 139 */ 140 struct x25_causediag { 141 unsigned char cause; 142 unsigned char diagnostic; 143 }; 144 145 /* 146 * Further optional call user data match length selection 147 */ 148 struct x25_subaddr { 149 unsigned int cudmatchlength; 150 }; 151 152 #endif 153