/* Copyright (C) 1997, 1999 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _NETAX25_AX25_H
#define _NETAX25_AX25_H        1

#include <features.h>
#include <bits/sockaddr.h>

/* Setsockoptions(2) level.  Thanks to BSD these must match IPPROTO_xxx.  */
#define SOL_AX25        257

/* AX.25 flags: */
#define AX25_WINDOW        1
#define AX25_T1                2
#define AX25_T2                5
#define AX25_T3                4
#define AX25_N2                3
#define AX25_BACKOFF        6
#define AX25_EXTSEQ        7
#define AX25_PIDINCL        8
#define AX25_IDLE        9
#define        AX25_PACLEN        10
#define AX25_IPMAXQUEUE 11
#define AX25_IAMDIGI        12
#define AX25_KILL        99

/* AX.25 socket ioctls: */
#define SIOCAX25GETUID                (SIOCPROTOPRIVATE)
#define SIOCAX25ADDUID                (SIOCPROTOPRIVATE+1)
#define SIOCAX25DELUID                (SIOCPROTOPRIVATE+2)
#define SIOCAX25NOUID                (SIOCPROTOPRIVATE+3)
#define SIOCAX25BPQADDR                (SIOCPROTOPRIVATE+4)
#define SIOCAX25GETPARMS        (SIOCPROTOPRIVATE+5)
#define SIOCAX25SETPARMS        (SIOCPROTOPRIVATE+6)
#define SIOCAX25OPTRT                (SIOCPROTOPRIVATE+7)
#define SIOCAX25CTLCON                (SIOCPROTOPRIVATE+8)
#define SIOCAX25GETINFO                (SIOCPROTOPRIVATE+9)
#define SIOCAX25ADDFWD                (SIOCPROTOPRIVATE+10)
#define SIOCAX25DELFWD                (SIOCPROTOPRIVATE+11)

/* unknown: */
#define AX25_NOUID_DEFAULT        0
#define AX25_NOUID_BLOCK        1
#define AX25_SET_RT_IPMODE        2

/* Digipeating flags: */
#define AX25_DIGI_INBAND        0x01        /* Allow digipeating within port */
#define AX25_DIGI_XBAND                0x02        /* Allow digipeating across ports */

/* Maximim number of digipeaters: */
#define AX25_MAX_DIGIS 8


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;
  };

/*
 * The sockaddr struct with the digipeater adresses:
 */
struct full_sockaddr_ax25
  {
    struct sockaddr_ax25 fsa_ax25;
    ax25_address fsa_digipeater[AX25_MAX_DIGIS];
  };
#define sax25_uid        sax25_ndigis

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

/* The AX.25 ioctl structure: */
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];
  };

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;
  };

struct ax25_fwd_struct
  {
    ax25_address port_from;
    ax25_address port_to;
  };

/* AX.25 route structure: */
struct ax25_route_opt_struct
  {
    ax25_address port_addr;
    ax25_address dest_addr;
    int cmd;
    int arg;
  };

/* AX.25 BPQ stuff: */
struct ax25_bpqaddr_struct
  {
    char dev[16];
    ax25_address addr;
  };

/* Definitions for the AX.25 `values' fields: */
#define        AX25_VALUES_IPDEFMODE        0        /* 'D'=DG 'V'=VC */
#define        AX25_VALUES_AXDEFMODE        1        /* 8=Normal 128=Extended Seq Nos */
#define        AX25_VALUES_NETROM        2        /* Allow NET/ROM  - 0=No 1=Yes */
#define        AX25_VALUES_TEXT        3        /* Allow PID=Text - 0=No 1=Yes */
#define        AX25_VALUES_BACKOFF        4        /* 'E'=Exponential 'L'=Linear */
#define        AX25_VALUES_CONMODE        5        /* Allow connected modes - 0=No 1=Yes */
#define        AX25_VALUES_WINDOW        6        /* Default window size for standard AX.25 */
#define        AX25_VALUES_EWINDOW        7        /* Default window size for extended AX.25 */
#define        AX25_VALUES_T1                8        /* Default T1 timeout value */
#define        AX25_VALUES_T2                9        /* Default T2 timeout value */
#define        AX25_VALUES_T3                10        /* Default T3 timeout value */
#define        AX25_VALUES_N2                11        /* Default N2 value */
#define        AX25_VALUES_DIGI        12        /* Digipeat mode */
#define AX25_VALUES_IDLE        13        /* mode vc idle timer */
#define AX25_VALUES_PACLEN        14        /* AX.25 MTU */
#define AX25_VALUES_IPMAXQUEUE  15        /* Maximum number of buffers enqueued */
#define        AX25_MAX_VALUES                20

struct ax25_parms_struct
  {
    ax25_address port_addr;
    unsigned short values[AX25_MAX_VALUES];
  };

#endif /* netax25/ax25.h */