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/*
 * These are the public elements of the Linux kernel AX.25 code. A similar
 * file netrom.h exists for the NET/ROM protocol.
 */

#ifndef AX25_KERNEL_H
#define AX25_KERNEL_H

#include <linux/socket.h>

#define AX25_MTU        256
#define AX25_MAX_DIGIS  8

#define AX25_WINDOW     1
#define AX25_T1         2
#define AX25_N2         3
#define AX25_T3         4
#define AX25_T2         5
#define AX25_BACKOFF    6
#define AX25_EXTSEQ     7
#define AX25_PIDINCL    8
#define AX25_IDLE       9
#define AX25_PACLEN     10
#define AX25_IAMDIGI    12

#define AX25_KILL       99

#define SIOCAX25GETUID          (SIOCPROTOPRIVATE+0)
#define SIOCAX25ADDUID          (SIOCPROTOPRIVATE+1)
#define SIOCAX25DELUID          (SIOCPROTOPRIVATE+2)
#define SIOCAX25NOUID           (SIOCPROTOPRIVATE+3)
#define SIOCAX25OPTRT           (SIOCPROTOPRIVATE+7)
#define SIOCAX25CTLCON          (SIOCPROTOPRIVATE+8)
#define SIOCAX25GETINFOOLD      (SIOCPROTOPRIVATE+9)
#define SIOCAX25ADDFWD          (SIOCPROTOPRIVATE+10)
#define SIOCAX25DELFWD          (SIOCPROTOPRIVATE+11)
#define SIOCAX25DEVCTL          (SIOCPROTOPRIVATE+12)
#define SIOCAX25GETINFO         (SIOCPROTOPRIVATE+13)

#define AX25_SET_RT_IPMODE      2

#define AX25_NOUID_DEFAULT      0
#define AX25_NOUID_BLOCK        1

typedef struct {
        char            ax25_call[7];   /* 6 call + SSID (shifted ascii!) */
} ax25_address;

struct sockaddr_ax25 {
        sa_family_t     sax25_family;
        ax25_address    sax25_call;
        int             sax25_ndigis;
        /* Digipeater ax25_address sets follow */
};

#define sax25_uid       sax25_ndigis

struct full_sockaddr_ax25 {
        struct sockaddr_ax25 fsa_ax25;
        ax25_address    fsa_digipeater[AX25_MAX_DIGIS];
};

struct ax25_routes_struct {
        ax25_address    port_addr;
        ax25_address    dest_addr;
        unsigned char   digi_count;
        ax25_address    digi_addr[AX25_MAX_DIGIS];
};

struct ax25_route_opt_struct {
        ax25_address    port_addr;
        ax25_address    dest_addr;
        int             cmd;
        int             arg;
};

struct ax25_ctl_struct {
        ax25_address            port_addr;
        ax25_address            source_addr;
        ax25_address            dest_addr;
        unsigned int            cmd;
        unsigned long           arg;
        unsigned char           digi_count;
        ax25_address            digi_addr[AX25_MAX_DIGIS];
};

/* this will go away. Please do not export to user land */
struct ax25_info_struct_deprecated {
        unsigned int    n2, n2count;
        unsigned int    t1, t1timer;
        unsigned int    t2, t2timer;
        unsigned int    t3, t3timer;
        unsigned int    idle, idletimer;
        unsigned int    state;
        unsigned int    rcv_q, snd_q;
};

struct ax25_info_struct {
        unsigned int    n2, n2count;
        unsigned int    t1, t1timer;
        unsigned int    t2, t2timer;
        unsigned int    t3, t3timer;
        unsigned int    idle, idletimer;
        unsigned int    state;
        unsigned int    rcv_q, snd_q;
        unsigned int    vs, vr, va, vs_max;
        unsigned int    paclen;
        unsigned int    window;
};

struct ax25_fwd_struct {
        ax25_address    port_from;
        ax25_address    port_to;
};

#endif