AX25CMD.C

/* AX25 control commands
 * Copyright 1991 Phil Karn, KA9Q
 *
 * Mods by G1EMM
 * Mods by PA0GRI
 * Mods by N1BEE
 */
/*
** FILE: ax25cmd.c
**
** AX.25 command handler.
**
** 09/24/90 Bob Applegate, wa2zzx
**    Added BCTEXT, BC, and BCINTERVAL commands for broadcasting an id
**    string using UI frames.
**
** 27/09/91 Mike Bilow, N1BEE
**    Added Filter command for axheard control
*/
  
#ifdef MSDOS
#include <dos.h>
#endif
#include "global.h"
#ifdef AX25
#include "mbuf.h"
#include "timer.h"
#include "proc.h"
#include "iface.h"
#include "ax25.h"
#include "lapb.h"
#include "cmdparse.h"
#include "socket.h"
#include "mailbox.h"
#include "session.h"
#include "tty.h"
#include "nr4.h"
#include "commands.h"
#include "pktdrvr.h"
#include "netrom.h"
  
int axheard __ARGS((struct iface *ifp));
static int doaxfilter __ARGS((int argc,char *argv[],void *p));
static int doaxflush __ARGS((int argc,char *argv[],void *p));
static int doaxirtt __ARGS((int argc,char *argv[],void *p));
static int doaxkick __ARGS((int argc,char *argv[],void *p));
static int doaxreset __ARGS((int argc,char *argv[],void *p));
static int doaxroute __ARGS((int argc,char *argv[],void *p));
int doaxstat __ARGS((int argc,char *argv[],void *p));
static int dobc __ARGS((int argc,char *argv[],void *p));
static int dobcint __ARGS((int argc,char *argv[],void *p));
static int dobcport __ARGS((int argc,char *argv[],void *p));
static int dobctext __ARGS((int argc,char *argv[],void *p));
static int doaxhport __ARGS((int argc,char *argv[],void *p));
static int doaxhsize __ARGS((int argc,char *argv[],void *p));
static int dodigipeat __ARGS((int argc,char *argv[],void *p));
static int domycall __ARGS((int argc,char *argv[],void *p));
static int dobbscall __ARGS((int argc,char *argv[],void *p));
int donralias __ARGS((int argc,char *argv[],void *p));
static void ax_bc __ARGS((struct iface *axif));
static int axdest __ARGS((struct iface *ifp));
#ifdef TTYCALL
static int dottycall __ARGS((int argc, char *argv[], void *p));
#endif
  
static int doaxwindow __ARGS((int argc,char *argv[],void *p));
static int doblimit __ARGS((int argc,char *argv[],void *p));
static int domaxframe __ARGS((int argc,char *argv[],void *p));
static int don2 __ARGS((int argc,char *argv[],void *p));
static int dopaclen __ARGS((int argc,char *argv[],void *p));
static int dopthresh __ARGS((int argc,char *argv[],void *p));
static int dot2 __ARGS((int argc,char *argv[],void *p));      /* K5JB */
static int dot3 __ARGS((int argc,char *argv[],void *p));
static int doaxtype __ARGS((int argc,char *argv[],void *p));
static int dot4 __ARGS((int argc,char *argv[],void *p));
static int doversion __ARGS((int argc,char *argv[],void *p));
static int doaxmaxwait __ARGS((int argc,char *argv[],void *p));
static int doax25irtt  __ARGS((int argc,char *argv[],void *p));
  
long Axmaxwait;
  
extern char Myalias[AXALEN];    /* the NETROM alias in 'call' form */
extern char Nralias[ALEN+1];      /* the NETROM alias in 'alias' form */
#ifdef TTYCALL
extern char Ttycall[AXALEN];  /* the ttylink call in 'call' form */
#endif
extern int axheard_filter_flag;     /* in axheard.c */
/* Defaults for IDing. */
char *axbctext;     /* Text to send */
static struct timer Broadtimer; /* timer for broadcasts */
  
char *Ax25states[] = {
    "",
    "Disconnected",
    "Listening",
    "Conn pending",
    "Disc pending",
    "Connected",
    "Recovery",
};
  
/* Ascii explanations for the disconnect reasons listed in lapb.h under
 * "reason" in ax25_cb
 */
char *Axreasons[] = {
    "Normal",
    "DM received",
    "Timeout"
};
  
static struct cmds DFAR Axcmds[] = {
    "alias",    donralias,  0, 0, NULLCHAR,
#ifdef MAILBOX
    "bbscall",  dobbscall,  0, 0, NULLCHAR,
#endif
    "bc",       dobc,       0, 0, NULLCHAR,
    "bcinterval",dobcint,   0, 0, NULLCHAR,
    "bcport",   dobcport,   0, 0, NULLCHAR,
    "blimit",       doblimit,       0, 0, NULLCHAR,
    "bctext",       dobctext,       0, 0, NULLCHAR,
    "dest",     doaxdest,   0, 0, NULLCHAR,
    "digipeat", dodigipeat, 0, 0, NULLCHAR,
    "filter",       doaxfilter,     0, 0, NULLCHAR,
    "flush",        doaxflush,      0, 0, NULLCHAR,
    "heard",        doaxheard,      0, 0, NULLCHAR,
    "hearddest",    doaxdest,       0, 0, NULLCHAR,
    "hport",    doaxhport,  0, 0, NULLCHAR,
    "hsize",    doaxhsize,  0, 0, NULLCHAR,
    "irtt",     doaxirtt,   0, 0, NULLCHAR,
    "kick",         doaxkick,       0, 2, "ax25 kick <axcb>",
    "maxframe",     domaxframe,     0, 0, NULLCHAR,
    "maxwait",      doaxmaxwait,    0, 0, NULLCHAR,
    "mycall",       domycall,       0, 0, NULLCHAR,
    "paclen",       dopaclen,       0, 0, NULLCHAR,
    "pthresh",      dopthresh,      0, 0, NULLCHAR,
    "reset",        doaxreset,      0, 2, "ax25 reset <axcb>",
    "retries",      don2,           0, 0, NULLCHAR,
    "route",        doaxroute,      0, 0, NULLCHAR,
    "status",       doaxstat,       0, 0, NULLCHAR,
    "t2",           dot2,           0, 0, NULLCHAR,	/* K5JB */
    "t3",           dot3,           0, 0, NULLCHAR,
    "t4",           dot4,           0, 0, NULLCHAR,
    "timertype",    doaxtype,       0, 0, NULLCHAR,
#ifdef TTYCALL
    "ttycall",      dottycall,  0, 0, NULLCHAR,
#endif
    "version",      doversion,      0, 0, NULLCHAR,
    "window",       doaxwindow,     0, 0, NULLCHAR,
    NULLCHAR,
};
  
/* Multiplexer for top-level ax25 command */
int
doax25(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return subcmd(Axcmds,argc,argv,p);
}
  
/* define the system's alias callsign ,
 * if netrom is used, this is also the netrom alias ! - WG7J
 */
  
int
donralias(argc,argv,p)
int argc ;
char *argv[] ;
void *p;
{
    char tmp[AXBUF];
  
    if(argc < 2) {
        tprintf("%s\n",pax25(tmp,Myalias));
        return 0;
    }
    if( (setcall(Myalias,argv[1]) == -1)
#ifdef NETROM
        || (putalias(Nralias,argv[1],1) == -1)
#endif
    ){
        tputs("can't set alias\n");
        Myalias[0] = '\0';
#ifdef NETROM
        Nralias[0] = '\0';
#endif
        return 0;
    }
#ifdef MAILBOX
    setmbnrid();
#endif
    return 0;
}
  
/*
** This function is called to send the current broadcast message
** and reset the timer.
*/
  
static int dobc(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifa;
  
    if (argc < 2)
    {
        tprintf("you need to specify an interface\n");
        return 1;
    }
  
    if((ifa=if_lookup(argv[1])) == NULLIF)
        tprintf(Badinterface,argv[1]);
    else if (ifa->type != CL_AX25)
        tputs("not an AX.25 interface\n");
    else
    {
        ax_bc(ifa);
        stop_timer(&Broadtimer) ;       /* in case it's already running */
        start_timer(&Broadtimer);               /* and fire it up */
    }
    return 0;
}
  
  
  
/*
** View/Change the message we broadcast.
*/
  
static int dobctext(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp;
  
    if (argc < 2) {
        if(axbctext)
            tprintf("Broadcast text: %s\n",axbctext);
        else
            tputs("not set\n");
    } else {
        if (axbctext != NULL)
            free(axbctext);
        axbctext = strdup(argv[1]);
        /* Set all ax.25 interfaces with no bc text */
        for(ifp=Ifaces;ifp->next;ifp=ifp->next)
            if(ifp->type == CL_AX25 && ifp->ax25->bctext == NULL)
                ifp->ax25->bctext = strdup(axbctext);
    }
    return 0;
}
  
  
  
#define TICKSPERSEC     (1000L / MSPTICK)       /* Ticks per second */
  
/*
** Examine/change the broadcast interval.
*/
  
static int dobcint(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    void dobroadtick __ARGS((void));
  
    if(argc < 2)
    {
        tprintf("Broadcast timer %lu/%lu seconds\n",
        read_timer(&Broadtimer)/1000L,
        dur_timer(&Broadtimer)/1000L);
        return 0;
    }
    stop_timer(&Broadtimer) ;       /* in case it's already running */
    Broadtimer.func = (void (*)__ARGS((void*)))dobroadtick;/* what to call on timeout */
    Broadtimer.arg = NULLCHAR;              /* dummy value */
    set_timer(&Broadtimer,(uint32)atoi(argv[1])*1000L);     /* set timer duration */
    start_timer(&Broadtimer);               /* and fire it up */
    return 0;
}
  
/* Configure a port to do ax.25 beacon broadcasting */
static int
dobcport(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setflag(argc,argv[1],AX25_BEACON,argv[2]);
}
  
int Maxax25heard;
int numal,numad;        /* to limit heard and dest table entries - K5JB */
  
/* Set the size of the ax.25 heard list */
int doaxhsize(int argc,char *argv[],void *p) {
    if(argc > 1)                 /* if setting new size ... */
        doaxflush(argc,argv,p);  /* we flush to avoid memory problems - K5JB */
    return setint(&Maxax25heard,"Max ax-heard",argc,argv);
}
  
/* Configure a port to do ax.25 heard logging */
static int
doaxhport(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setflag(argc,argv[1],LOG_AXHEARD,argv[2]);
}
  
void
dobroadtick()
{
    struct iface *ifa;
  
    ifa = Ifaces;
  
    while (ifa != NULL)
    {
        if (ifa->flags & AX25_BEACON)
            ax_bc(ifa);
        ifa = ifa->next;
    }
  
    /* Restart timer */
    start_timer(&Broadtimer) ;
}
  
  
  
/*
** This is the low-level broadcast function.
*/
  
static void ax_bc(axiface)
struct iface *axiface;
{
    struct mbuf *hbp;
    int i;
  
    /* prepare the header */
    i = 0;
    if(axiface->ax25->bctext)
        i = strlen(axiface->ax25->bctext);
    if((hbp = alloc_mbuf(i)) == NULLBUF)
        return;
  
    hbp->cnt = i;
    if(i)
        memcpy(hbp->data,axiface->ax25->bctext,i);
  
    (*axiface->output)(axiface, Ax25multi[IDCALL],
#ifdef MAILBOX
    (axiface->ax25->bbscall[0] ? axiface->ax25->bbscall : axiface->hwaddr),
#else
    axiface->hwaddr,
#endif
    PID_NO_L3, hbp);        /* send it */
  
    /*
    ** Call another function to reset the timer...
    reset_bc_timer();
    */
}
  
  
int
doaxheard(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp;
  
    if(argc > 1){
        if((ifp = if_lookup(argv[1])) == NULLIF){
            tprintf(Badinterface,argv[1]);
            return 1;
        }
        if(ifp->type != CL_AX25){
            tprintf("Interface %s not AX.25\n",argv[1]);
            return 1;
        }
        if(ifp->flags & LOG_AXHEARD)
            axheard(ifp);
        else
            tputs("not active\n");
        return 0;
    }
    for(ifp = Ifaces;ifp != NULLIF;ifp = ifp->next){
        if(ifp->type != CL_AX25 || !(ifp->flags & LOG_AXHEARD))
            continue;       /* Not an ax.25 interface */
        if(axheard(ifp) == EOF)
            break;
    }
    return 0;
}
int
axheard(ifp)
struct iface *ifp;
{
    int col = 0;
    struct lq *lp;
    char tmp[AXBUF];
  
    if(ifp->hwaddr == NULLCHAR)
        return 0;
  
    tputs("Interface  Station   Time since send  Pkts sent\n");
    tprintf("%-9s  %-9s   %12s    %7lu\n",ifp->name,pax25(tmp,ifp->hwaddr),
    tformat(secclock() - ifp->lastsent),ifp->rawsndcnt);
  
    tputs("Station   Time since heard Pkts rcvd : ");
    tputs("Station   Time since heard Pkts rcvd\n");
    for(lp = Lq;lp != NULLLQ;lp = lp->next){
        if(lp->iface != ifp)
            continue;
        if(col)
            tputs("  : ");
        if(tprintf("%-9s   %12s    %7lu",pax25(tmp,lp->addr),
            tformat(secclock() - lp->time),lp->currxcnt) == EOF)
            return EOF;
        if(col){
            if(tputc('\n') == EOF){
                return EOF;
            } else {
                col = 0;
            }
        } else {
            col = 1;
        }
    }
    if(col)
        tputc('\n');
    return 0;
}
int
doaxdest(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp;
  
    if(argc > 1){
        if((ifp = if_lookup(argv[1])) == NULLIF){
            tprintf(Badinterface,argv[1]);
            return 1;
        }
        if(ifp->output != ax_output){
            tprintf("Interface %s not AX.25\n",argv[1]);
            return 1;
        }
        axdest(ifp);
        return 0;
    }
    for(ifp = Ifaces;ifp != NULLIF;ifp = ifp->next){
        if(ifp->output != ax_output)
            continue;       /* Not an ax.25 interface */
        if(axdest(ifp) == EOF)
            break;
    }
    return 0;
}
static int
axdest(ifp)
struct iface *ifp;
{
    struct ld *lp;
    struct lq *lq;
    char tmp[AXBUF];
  
    if(ifp->hwaddr == NULLCHAR)
        return 0;
    tprintf("%s:\n",ifp->name);
    tputs("Station   Last ref         Last heard           Pkts\n");
    for(lp = Ld;lp != NULLLD;lp = lp->next){
        if(lp->iface != ifp)
            continue;
  
        tprintf("%-10s%-17s",
        pax25(tmp,lp->addr),tformat(secclock() - lp->time));
  
        if(addreq(lp->addr,ifp->hwaddr)){
            /* Special case; it's our address */
            tprintf("%-17s",tformat(secclock() - ifp->lastsent));
        } else if((lq = al_lookup(ifp,lp->addr,0)) == NULLLQ){
            tprintf("%-17s","");
        } else {
            tprintf("%-17s",tformat(secclock() - lq->time));
        }
        if(tprintf("%8lu\n",lp->currxcnt) == EOF)
            return EOF;
    }
    return 0;
}
  
static int
doaxfilter(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    if(argc >= 2){
        setint(&axheard_filter_flag,"ax25 heard filter",argc,argv);
    } else {
        tputs("Usage: ax25 filter <0|1|2|3>\n");
        return 1;
    }
  
    tputs("Callsign logging by source ");
    if(axheard_filter_flag & AXHEARD_NOSRC)
        tputs("disabled, ");
    else
        tputs("enabled, ");
    tputs("by destination ");
    if(axheard_filter_flag & AXHEARD_NODST)
        tputs("disabled\n");
    else
        tputs("enabled\n");
    return 0;
}
  
static int
doaxflush(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct lq *lp,*lp1;
    struct ld *ld,*ld1;
  
    for(lp = Lq;lp != NULLLQ;lp = lp1){
        lp1 = lp->next;
        free((char *)lp);
    }
    Lq = NULLLQ;
    for(ld = Ld;ld != NULLLD;ld = ld1){
        ld1 = ld->next;
        free((char *)ld);
    }
    Ld = NULLLD;
    numad = numal = 0;  /* K5JB */
    return 0;
}
  
static int
doaxreset(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct ax25_cb *axp;
  
    axp = MK_FP(htoi(argv[1]),8);
    if(!ax25val(axp)){
        tputs(Notval);
        return 1;
    }
    reset_ax25(axp);
    return 0;
}
  
/* Display AX.25 link level control blocks */
int
doaxstat(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    register struct ax25_cb *axp;
    char tmp[AXBUF];
    char tmp2[AXBUF];
  
    if(argc < 2){
#ifdef UNIX
        tprintf("&AXB     Snd-Q   Rcv-Q   Remote    Local     Iface  State\n");
#else
        tputs("&AXB Snd-Q   Rcv-Q   Remote    Local     Iface  State\n");
#endif
        for(axp = Ax25_cb;axp != NULLAX25; axp = axp->next){
#ifdef UNIX
            if(tprintf("%8.8lx %-8d%-8d%-10s%-10s%-7s%s\n",
#else
                if(tprintf("%4.4x %-8d%-8d%-10s%-10s%-7s%s\n",
#endif
                    FP_SEG(axp),
                    len_q(axp->txq),len_p(axp->rxq),
                    pax25(tmp,axp->remote),
                    pax25(tmp2,axp->local),
                    axp->iface?axp->iface->name:"",
                    Ax25states[axp->state]) == EOF)
                    return 0;
        }
        return 0;
    }
    axp = MK_FP(htoi(argv[1]),8);
    if(!ax25val(axp)){
        tputs(Notval);
        return 1;
    }
    st_ax25(axp);
    return 0;
}
/* Dump one control block */
void
st_ax25(axp)
register struct ax25_cb *axp;
{
    char tmp[AXBUF];
    char tmp2[AXBUF];
  
    if(axp == NULLAX25)
        return;
#ifdef UNIX
    tprintf("&AXB     Local     Remote    Iface  RB V(S) V(R) Unack P Retry State\n");
    tprintf("%8.8lx %-9s %-9s %-6s %c%c",FP_SEG(axp),
#else
    tputs("&AXB Local     Remote    Iface  RB V(S) V(R) Unack P Retry State\n");
    tprintf("%4.4x %-9s %-9s %-6s %c%c",FP_SEG(axp),
#endif
    pax25(tmp,axp->local),
    pax25(tmp2,axp->remote),
    axp->iface?axp->iface->name:"",
    axp->flags.rejsent ? 'R' : ' ',
    axp->flags.remotebusy ? 'B' : ' ');
    tprintf(" %4d %4d",axp->vs,axp->vr);
    tprintf(" %02u/%02u %u",axp->unack,axp->maxframe,axp->proto);
    tprintf(" %02u/%02u",axp->retries,axp->n2);
    tprintf(" %s\n",Ax25states[axp->state]);
    tprintf("srtt = %lu mdev = %lu ",axp->srt,axp->mdev);
    tputs("T1: ");
    if(run_timer(&axp->t1))
        tprintf("%lu",read_timer(&axp->t1));
    else
        tputs("stop");
    tprintf("/%lu ms; ",dur_timer(&axp->t1));
  
    tputs("T3: ");
    if(run_timer(&axp->t3))
        tprintf("%lu",read_timer(&axp->t3));
    else
        tputs("stop");
    tprintf("/%lu ms; ",dur_timer(&axp->t3));
  
    tputs("T4: ");
    if(run_timer(&axp->t4))
        tprintf("%lu",(read_timer(&axp->t4)/1000L));
    else
        tputs("stop");
    tprintf("/%lu sec\n",(dur_timer(&axp->t4)/1000L));
}
  
/* Set limit on retransmission backoff */
int
doax25blimit(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setlong((long *)p,"blimit",argc,argv);
}
  
static int
doblimit(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25blimit(argc,argv,(void *)&Blimit);
}
  
/* Set limit on retransmission in ms */
int
doax25maxwait(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setlong((long *)p,"retry maxwait",argc,argv);
}
  
static int
doaxmaxwait(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25maxwait(argc,argv,(void *)&Axmaxwait);
}
  
/* Display or change our AX.25 address */
static int
domycall(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    char tmp[AXBUF];
  
    if(argc < 2){
        tprintf("%s\n",pax25(tmp,Mycall));
        return 0;
    }
    if(setcall(Mycall,argv[1]) == -1)
        return -1;
#ifdef MAILBOX
    if(Bbscall[0] == 0)
        memcpy(Bbscall,Mycall,AXALEN);
    setmbnrid();
#endif
    return 0;
}
  
#ifdef MAILBOX
/* Display or change our BBS address */
static int
dobbscall(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    char tmp[AXBUF];
    struct iface *ifp;
  
    if(argc < 2){
        tprintf("%s\n",pax25(tmp,Bbscall));
        return 0;
    }
    if(setcall(Bbscall,argv[1]) == -1)
        return -1;
    /* Set the bbs call on all appropriate interfaces
     * that don't have a bbs call set yet.
     */
    for(ifp = Ifaces;ifp != NULLIF;ifp = ifp->next)
        if(ifp->type == CL_AX25 && ifp->ax25->bbscall[0] == 0)
            memcpy(ifp->ax25->bbscall,Bbscall,AXALEN);
    return 0;
}
#endif
  
#ifdef TTYCALL
/* Display or change ttylink AX.25 address */
static int
dottycall(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    char tmp[AXBUF];
  
    if(argc < 2){
        tprintf("%s\n",pax25(tmp,Ttycall));
        return 0;
    }
    if(setcall(Ttycall,argv[1]) == -1)
        return -1;
    return 0;
}
#endif
  
/* Control AX.25 digipeating */
static int
dodigipeat(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setflag(argc,argv[1],AX25_DIGI,argv[2]);
}
  
int
doax25version(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setshort((unsigned short *)p,"AX25 version",argc,argv);
}
  
static int
doversion(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25version(argc,argv,(void *)&Axversion);
}
  
static int
doax25irtt(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setlong((long *)p,"Initial RTT (ms)",argc,argv);
}
  
static int
doaxirtt(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25irtt(argc,argv,(void *)&Axirtt);
}
  
/* Set T2 timer - K5JB */
int
doax25t2(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setlong((long *)p,"Resptime, T2 (ms)",argc,argv);
}

/* Set T2 timer - K5JB */
static int
dot2(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25t2(argc,argv,&T2init);
}

/* Set idle timer */
int
doax25t3(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setlong((long *)p,"Idle poll timer (ms)",argc,argv);
}
  
/* Set idle timer */
static int
dot3(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25t3(argc,argv,&T3init);
}
  
/* Set link redundancy timer */
int
doax25t4(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setlong((long *)p,"Link redundancy timer (sec)",argc,argv);
}
  
/* Set link redundancy timer */
static int
dot4(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25t4(argc,argv,(long *)&T4init);
}
  
/* Set retry limit count */
int
doax25n2(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setshort((unsigned short *)p,"Retry limit",argc,argv);
}
  
static int
don2(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25n2(argc,argv,(void *)&N2);
}
  
/* Force a retransmission */
static int
doaxkick(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct ax25_cb *axp;
  
    axp = MK_FP(htoi(argv[1]),8);
    if(!ax25val(axp)){
        tputs(Notval);
        return 1;
    }
    kick_ax25(axp);
    return 0;
}
  
/* Set maximum number of frames that will be allowed in flight */
int
doax25maxframe(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setshort((unsigned short *)p,"Window size (frames)",argc,argv);
}
  
static int
domaxframe(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25maxframe(argc,argv,(void *)&Maxframe);
}
  
/* Set maximum length of I-frame data field */
int
doax25paclen(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setshort((unsigned short *)p,"Max frame length (bytes)",argc,argv);
}
  
static int
dopaclen(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25paclen(argc,argv,(void *)&Paclen);
}
  
/* Set size of I-frame above which polls will be sent after a timeout */
int
doax25pthresh(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setshort((unsigned short *)p,"Poll threshold (bytes)",argc,argv);
}
  
static int
dopthresh(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25pthresh(argc,argv,(void *)&Pthresh);
}
  
/* Set high water mark on receive queue that triggers RNR */
int
doax25window(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return setshort((unsigned short *)p,"AX25 receive window (bytes)",argc,argv);
}
  
static int
doaxwindow(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    return doax25window(argc,argv,(void *)&Axwindow);
}
/* End of ax25 subcommands */
  
#if defined(AX25SESSION) || defined(MAILBOX) || defined(AXUISESSION)
/* Consolidate into one place the parsing of a connect path containing digipeaters.
 * This is for gateway connects (mboxgate.c), by console connect cmd, by the
 * axui command, and by the BBS forwarding process.
 * We will place the derived path into the ax25 route table.
 * Input: tokenized cmd line argc/argv: cmd iface target [via] digi1 [,] digi2 ... digiN
 *        interface *ifp.
 *        target, the node reached via digipeating.
 * Output: ax25 route table is updated.
 * Return code: 0 => error, else number of digis in path.  -- K5JB
*/
int
connect_filt(int argc,char *argv[],char target[],struct iface *ifp)
{
    int i, rtn_argc, ndigis,dreg_flag = 0;
    char digis[MAXDIGIS][AXALEN];
    char *nargv[MAXDIGIS + 1];
    char *cp,*dreg;

    ndigis = argc - 3;  /* worst case */

    for(i=0,rtn_argc=0; i<ndigis && rtn_argc < MAXDIGIS + 1; i++){
        cp = argv[i+3];

get_dreg:
        switch(*cp){
            case ',':
                if(!*(cp + 1))  /* lone comma */
                    continue;  /* skip it */
                else { /* leading comma, a faux pas */
                    nargv[rtn_argc++] = ++cp;
                    if(*cp == ',') {   /* sequential commas are illegal */
                        rtn_argc = MAXDIGIS + 1;  /* force for() loop exit */
                        continue;
                    }
                    break;
                }
            case 'v':
                if(!strncmp("via",cp,strlen(cp)))  /* should get 'em all */
                    continue;  /* skip it */
            default:
                nargv[rtn_argc++] = cp;
                break;
        }
        for(; *cp; cp++)	/* remove any trailing commas */
            if(*cp == ',') {
                *cp = '\0';
                if(*(cp + 1) != '\0') { /* something dangling */
                    dreg = cp + 1;   /* restart scan here */
                    dreg_flag = 1;
                }
                break;
            }
        if(dreg_flag){
            dreg_flag = 0;
            cp = dreg;      /* go back and get the dreg */
            goto get_dreg;
        }
    }

    if(rtn_argc > MAXDIGIS || ndigis < 1 || ifp==NULLIF){
        tputs("Too many digipeaters, or badly formed command.\n");
        return 0;
    }
    for(i=0;i<rtn_argc;i++){
        if(setcall(digis[i],nargv[i]) == -1){
            tprintf("Bad digipeater %s\n",nargv[i]);
            return 0;
        }
    }
    if(ax_add(target,AX_AUTO,digis,rtn_argc,ifp) == NULLAXR){
        tputs("AX25 route add failed\n");
        return 0;
    }
    return(rtn_argc);
}
#endif

#ifdef AX25SESSION
/* Initiate interactive AX.25 connect to remote station */
int
doconnect(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct sockaddr_ax fsocket;
    struct session *sp;
    struct iface *ifp;
    char target[AXALEN];
    int split = 0;
  
    /*Make sure this comes from console - WG7J*/
    if(Curproc->input != Command->input)
        return 0;
  
#ifdef SPLITSCREEN
    if(argv[0][0] == 's')   /* use split screen */
        split  = 1;
#endif
  
    if(((ifp = if_lookup(argv[1])) == NULLIF) || (ifp->type != CL_AX25)) {
        tprintf("Iface %s not defined or not an AX25 type interface\n",argv[1]);
        return 1;
    }
  
    if(setcall(target,argv[2]) == -1){
        tprintf("Bad callsign %s\n", argv[2]);
        return 1;
    }
  
    /* If digipeaters are given, put them in the routing table */
    if(argc > 3){
        if(connect_filt(argc,argv,target,ifp) == 0)
            return 1;
    }
    /* Allocate a session descriptor */
    if((sp = newsession(argv[2],AX25TNC,split)) == NULLSESSION){
        tputs(TooManySessions);
        return 1;
    }
    if((sp->s = socket(AF_AX25,SOCK_STREAM,0)) == -1){
        tputs(Nosock);
        freesession(sp);
        keywait(NULLCHAR,1);
        return 1;
    }
    fsocket.sax_family = AF_AX25;
    setcall(fsocket.ax25_addr,argv[2]);
    strncpy(fsocket.iface,argv[1],ILEN);
    return tel_connect(sp, (char *)&fsocket, sizeof(struct sockaddr_ax));
}
#endif
  
/* Display and modify AX.25 routing table */
static int
doaxroute(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    char tmp[AXBUF];
    int i,ndigis;
    register struct ax_route *axr;
    char target[AXALEN],digis[MAXDIGIS][AXALEN];
    struct iface *iface;
  
    if(argc < 2){
        tputs("Target    Iface  Type  Mode Digipeaters\n");
        for(axr = Ax_routes;axr != NULLAXR;axr = axr->next){
            tprintf("%-10s%-7s%-6s",pax25(tmp,axr->target),
            axr->iface->name,axr->type == AX_LOCAL ? "Local" :
            axr->type == AX_AUTO ?  "Auto" : "Perm" );
            switch(axr->mode){
                case AX_VC_MODE:
                    tputs(" VC ");
                    break;
                case AX_DATMODE:
                    tputs(" DG ");
                    break;
                case AX_DEFMODE:
                    tputs(" IF ");
                    break;
                default:
                    tputs(" ?? ");
                    break;
            }
  
            for(i=0;i<axr->ndigis;i++){
                tprintf(" %s",pax25(tmp,axr->digis[i]));
            }
            if(tputc('\n') == EOF)
                return 0;
        }
        return 0;
    }
    if(argc < 4){
        tputs("Usage: ax25 route add <target> <iface> [digis...]\n");
        tputs("       ax25 route drop <target> <iface>\n");
        tputs("       ax25 route mode <target> <iface> [mode]\n");
        tputs("       ax25 route perm <target> <iface> [digis...]\n");
        return 1;
    }
    if(setcall(target,argv[2]) == -1){
        tprintf("Bad target %s\n",argv[2]);
        return 1;
    }
    if((iface = if_lookup(argv[3])) == NULLIF){
        tprintf(Badinterface,argv[3]);
        return 1;
    }
    switch(argv[1][0]){
        case 'a':       /* Add route */
        case 'p':       /* add a permanent route - K5JB */
            ndigis = argc - 4;
            if(ndigis > MAXDIGIS){
                tputs("Too many digipeaters\n");
                return 1;
            }
            for(i=0;i<ndigis;i++){
                if(setcall(digis[i],argv[i+4]) == -1){
                    tprintf("Bad digipeater %s\n",argv[i+4]);
                    return 1;
                }
            }
            if(ax_add(target,argv[1][0] == 'a' ? AX_LOCAL : AX_PERM,
               digis,ndigis,iface) == NULLAXR){        /* K5JB */
                tputs("Failed\n");
                return 1;
            }
            break;
        case 'd':       /* Drop route */
            if(ax_drop(target,iface,1) == -1){
                tputs("Not in table\n");
                return 1;
            }
            break;
        case 'm':       /* Alter route mode */
            if((axr = ax_lookup(target,iface)) == NULLAXR){
                tputs("Not in table\n");
                return 1;
            }
            switch(argv[4][0]){
                case 'i':       /* use default interface mode */
                    axr->mode = AX_DEFMODE;
                    break;
                case 'v':       /* use virtual circuit mode */
                    axr->mode = AX_VC_MODE;
                    break;
                case 'd':       /* use datagram mode */
                    axr->mode = AX_DATMODE;
                    break;
                default:
                    tprintf("Unknown mode %s\n", argv[4]);
                    return 1;
            }
            break;
        default:
            tprintf("Unknown command %s\n",argv[1]);
            return 1;
    }
    return 0;
}
  
extern int lapbtimertype;
  
/* ax25 timers type - linear v exponential */
int
doax25timertype(argc,argv,p)
int argc ;
char *argv[] ;
void *p ;
{
    if (argc < 2) {
        tputs("AX25 timer type is ");
        switch(*(int *)p){
            case 2:
                tputs("original\n");
                break;
            case 1:
                tputs("linear\n");
                break;
            case 0:
                tputs("exponential\n");
                break;
        }
        return 0 ;
    }
  
    switch (argv[1][0]) {
        case 'o':
        case 'O':
            *(int *)p = 2 ;
            break ;
        case 'l':
        case 'L':
            *(int *)p = 1 ;
            break ;
        case 'e':
        case 'E':
            *(int *)p = 0 ;
            break ;
        default:
            tputs("usage: ax25 timertype [original|linear|exponential]\n") ;
            return -1 ;
    }
  
    return 0 ;
}
  
/* ax25 timers type - linear v exponential */
static int
doaxtype(argc,argv,p)
int argc ;
char *argv[] ;
void *p ;
{
    return doax25timertype(argc,argv,(void *)&lapbtimertype);
}
  
  
void init_ifax25(struct ifax25 *ax25) {
  
    if(!ax25)
        return;
    /* Set interface to the defaults */
    ax25->paclen = Paclen;
    ax25->lapbtimertype = lapbtimertype;
    ax25->irtt = Axirtt;
    ax25->version = Axversion;
    ax25->t2 = T2init;	/* K5JB */
    ax25->t3 = T3init;
    ax25->t4 = T4init;
    ax25->n2 = N2;
    ax25->maxframe = Maxframe;
    ax25->pthresh = Pthresh;
    ax25->window = Axwindow;
    ax25->blimit = Blimit;
    ax25->maxwait = Axmaxwait;
    if(axbctext)
        ax25->bctext = strdup(axbctext);
#ifdef MAILBOX
    memcpy(ax25->bbscall,Bbscall,AXALEN);
#endif
}
  
static int doifax25paclen __ARGS((int argc, char *argv[], void *p));
static int doifax25timertype __ARGS((int argc, char *argv[], void *p));
static int doifax25irtt __ARGS((int argc, char *argv[], void *p));
static int doifax25version __ARGS((int argc, char *argv[], void *p));
static int doifax25t2 __ARGS((int argc, char *argv[], void *p));	/* K5JB */
static int doifax25t3 __ARGS((int argc, char *argv[], void *p));
static int doifax25t4 __ARGS((int argc, char *argv[], void *p));
static int doifax25n2 __ARGS((int argc, char *argv[], void *p));
static int doifax25maxframe __ARGS((int argc, char *argv[], void *p));
static int doifax25pthresh __ARGS((int argc, char *argv[], void *p));
static int doifax25window __ARGS((int argc, char *argv[], void *p));
static int doifax25blimit __ARGS((int argc, char *argv[], void *p));
static int doifax25maxwait __ARGS((int argc, char *argv[], void *p));
static int doifax25bctext __ARGS((int argc, char *argv[], void *p));
static int doifax25bbscall __ARGS((int argc, char *argv[], void *p));
static int doifax25cdigi __ARGS((int argc, char *argv[], void *p));
  
/* These are the command that set ax.25 parameters per interface */
static struct cmds DFAR Ifaxcmds[] = {
#ifdef MAILBOX
    "bbscall",  doifax25bbscall,    0, 0, NULLCHAR,
#endif
    "bctext",   doifax25bctext,     0, 0, NULLCHAR,
    "blimit",   doifax25blimit,     0, 0, NULLCHAR,
    "cdigi",    doifax25cdigi,      0, 0, NULLCHAR,
    "irtt",     doifax25irtt,       0, 0, NULLCHAR,
    "maxframe", doifax25maxframe,   0, 0, NULLCHAR,
    "maxwait",  doifax25maxwait,    0, 0, NULLCHAR,
    "paclen",   doifax25paclen,     0, 0, NULLCHAR,
    "pthresh",  doifax25pthresh,    0, 0, NULLCHAR,
    "retries",  doifax25n2,         0, 0, NULLCHAR,
    "timertype",doifax25timertype,  0, 0, NULLCHAR,
    "t2",       doifax25t2,         0, 0, NULLCHAR,	/* K5JB */
    "t3",       doifax25t3,         0, 0, NULLCHAR,
    "t4",       doifax25t4,         0, 0, NULLCHAR,
    "version",  doifax25version,    0, 0, NULLCHAR,
    "window",   doifax25window,     0, 0, NULLCHAR,
    NULLCHAR
};
  
int ifax25(int argc,char *argv[],void *p) {
  
    if(((struct iface *)p)->type != CL_AX25)
        return tputs("not an AX.25 interface\n");
    return subcmd(Ifaxcmds,argc,argv,p);
};
  
  
  
#ifdef MAILBOX
/* Set bbs ax.25 address */
static int
doifax25bbscall(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
    char tmp[AXBUF];
  
    if(argc == 1)
        tprintf("Bbscall %s\n",pax25(tmp,ifp->ax25->bbscall));
    else
        setcall(ifp->ax25->bbscall,argv[1]);
    return 0;
}
#endif
  
/* Set ax.25 bctext */
static int
doifax25bctext(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    if(argc == 1)
        tprintf("Bctext : %s\n",ifp->ax25->bctext);
    else {
        if(ifp->ax25->bctext)
            free(ifp->ax25->bctext);
        if(strlen(argv[1]) == 0)    /* clearing the buffer */
            ifp->ax25->bctext = NULL;
        else
            ifp->ax25->bctext = strdup(argv[1]);
    }
    return 0;
}
  
static int
doifax25blimit(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25blimit(argc,argv,(void *)&ifp->ax25->blimit);
}
  
/* Set cross band digi call address */
static int
doifax25cdigi(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
    char tmp[AXBUF];
  
    if(argc == 1)
        tprintf("Cdigi %s\n",pax25(tmp,ifp->ax25->cdigi));
    else
        setcall(ifp->ax25->cdigi,argv[1]);
    return 0;
}
  
static int
doifax25irtt(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25irtt(argc,argv,(void *)&ifp->ax25->irtt);
}
  
static int
doifax25maxframe(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25maxframe(argc,argv,(void *)&ifp->ax25->maxframe);
}
  
static int
doifax25maxwait(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25maxwait(argc,argv,(void *)&ifp->ax25->maxwait);
}
  
  
/* Set interface AX.25 Paclen, and adjust the NETROM mtu for the
 * smallest paclen. - WG7J
 */
static int
doifax25paclen(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
#ifdef NETROM
    int tmp;
#endif
  
    doax25paclen(argc,argv,(void *)&ifp->ax25->paclen);
#ifdef NETROM
    if(argc > 1 && ifp->flags & IS_NR_IFACE) {
        if((tmp=ifp->ax25->paclen - 20) < Nr_iface->mtu)
            Nr_iface->mtu = tmp;
    }
#endif
    return 0;
}
  
static int
doifax25pthresh(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25pthresh(argc,argv,(void *)&ifp->ax25->pthresh);
}
  
static int
doifax25n2(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25n2(argc,argv,(void *)&ifp->ax25->n2);
}
  
static int
doifax25timertype(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25timertype(argc,argv,(void *)&ifp->ax25->lapbtimertype);
}
  
static int	/* K5JB */
doifax25t2(argc,argv,p)
int argc;
char *argv[];
void *p;
{
	struct iface *ifp = p;

	return doax25t2(argc,argv,(void *)&ifp->ax25->t2);
}

static int
doifax25t3(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25t3(argc,argv,(void *)&ifp->ax25->t3);
}
  
static int
doifax25t4(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25t4(argc,argv,(void *)&ifp->ax25->t4);
}
  
static int
doifax25version(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25version(argc,argv,(void *)&ifp->ax25->version);
}
  
static int
doifax25window(argc,argv,p)
int argc;
char *argv[];
void *p;
{
    struct iface *ifp = p;
  
    return doax25window(argc,argv,(void *)&ifp->ax25->window);
}
  
#endif /* AX25 */