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/*

 * 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>

#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)

/*

 *      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 {

        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