/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * These are the public elements of the Linux kernel X.25 implementation. * * History * mar/20/00 Daniela Squassoni Disabling/enabling of facilities * negotiation. * apr/02/05 Shaun Pereira Selective sub address matching with * call user data */ #ifndef X25_KERNEL_H #define X25_KERNEL_H #include <linux/types.h> #include <linux/socket.h> #define SIOCX25GSUBSCRIP (SIOCPROTOPRIVATE + 0) #define SIOCX25SSUBSCRIP (SIOCPROTOPRIVATE + 1) #define SIOCX25GFACILITIES (SIOCPROTOPRIVATE + 2) #define SIOCX25SFACILITIES (SIOCPROTOPRIVATE + 3) #define SIOCX25GCALLUSERDATA (SIOCPROTOPRIVATE + 4) #define SIOCX25SCALLUSERDATA (SIOCPROTOPRIVATE + 5) #define SIOCX25GCAUSEDIAG (SIOCPROTOPRIVATE + 6) #define SIOCX25SCUDMATCHLEN (SIOCPROTOPRIVATE + 7) #define SIOCX25CALLACCPTAPPRV (SIOCPROTOPRIVATE + 8) #define SIOCX25SENDCALLACCPT (SIOCPROTOPRIVATE + 9) #define SIOCX25GDTEFACILITIES (SIOCPROTOPRIVATE + 10) #define SIOCX25SDTEFACILITIES (SIOCPROTOPRIVATE + 11) #define SIOCX25SCAUSEDIAG (SIOCPROTOPRIVATE + 12) /* * Values for {get,set}sockopt. */ #define X25_QBITINCL 1 /* * X.25 Packet Size values. */ #define X25_PS16 4 #define X25_PS32 5 #define X25_PS64 6 #define X25_PS128 7 #define X25_PS256 8 #define X25_PS512 9 #define X25_PS1024 10 #define X25_PS2048 11 #define X25_PS4096 12 /* * An X.121 address, it is held as ASCII text, null terminated, up to 15 * digits and a null terminator. */ struct x25_address { char x25_addr[16]; }; /* * Linux X.25 Address structure, used for bind, and connect mostly. */ struct sockaddr_x25 { __kernel_sa_family_t sx25_family; /* Must be AF_X25 */ struct x25_address sx25_addr; /* X.121 Address */ }; /* * DTE/DCE subscription options. * * As this is missing lots of options, user should expect major * changes of this structure in 2.5.x which might break compatibilty. * The somewhat ugly dimension 200-sizeof() is needed to maintain * backward compatibility. */ struct x25_subscrip_struct { char device[200-sizeof(unsigned long)]; unsigned long global_facil_mask; /* 0 to disable negotiation */ unsigned int extended; }; /* values for above global_facil_mask */ #define X25_MASK_REVERSE 0x01 #define X25_MASK_THROUGHPUT 0x02 #define X25_MASK_PACKET_SIZE 0x04 #define X25_MASK_WINDOW_SIZE 0x08 #define X25_MASK_CALLING_AE 0x10 #define X25_MASK_CALLED_AE 0x20 /* * Routing table control structure. */ struct x25_route_struct { struct x25_address address; unsigned int sigdigits; char device[200]; }; /* * Facilities structure. */ struct x25_facilities { unsigned int winsize_in, winsize_out; unsigned int pacsize_in, pacsize_out; unsigned int throughput; unsigned int reverse; }; /* * ITU DTE facilities * Only the called and calling address * extension are currently implemented. * The rest are in place to avoid the struct * changing size if someone needs them later */ struct x25_dte_facilities { __u16 delay_cumul; __u16 delay_target; __u16 delay_max; __u8 min_throughput; __u8 expedited; __u8 calling_len; __u8 called_len; __u8 calling_ae[20]; __u8 called_ae[20]; }; /* * Call User Data structure. */ struct x25_calluserdata { unsigned int cudlength; unsigned char cuddata[128]; }; /* * Call clearing Cause and Diagnostic structure. */ struct x25_causediag { unsigned char cause; unsigned char diagnostic; }; /* * Further optional call user data match length selection */ struct x25_subaddr { unsigned int cudmatchlength; }; #endif