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/*
*
* Copyright (C) Cyclades Corporation, 1999-1999. All rights reserved.
*
*
* misc.c
* Miscelaneous system-dependent routines
*
* History
* 08/17/1999 V.1.0.0 Initial revision
*
* Oct-27-2001 V.1.0.1 Hangup messages now are of Warning type
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#ifndef HPUX
#include <sys/select.h>
#endif
#define _TSR_MISC_
#include "inc/cyclades-ser-cli.h"
#include "inc/system.h"
#include "inc/tsrio.h"
#include "inc/telnet.h"
#include "inc/sock.h"
#include "inc/dev.h"
#include <string.h>
#include <sys/param.h>
#include <unistd.h>
#include <fcntl.h>
#ifdef TSR_MEASURE
#include <tsrmeasure.h>
#endif
#include <netinet/in.h>
#include "inc/control.h"
#ifndef MAX
#define MAX(a,b) (((a)>(b))?(a):(b))
#endif
#ifndef MIN
#define MIN(a,b) (((a)<(b))?(a):(b))
#endif
int
external_poll (int eventmask, int timeout)
{
fd_set readmask, writemask, exceptmask;
struct timeval tv;
int ret, maxfd, msgtype, i, j;
FD_ZERO (&readmask);
FD_ZERO (&writemask);
FD_ZERO (&exceptmask);
maxfd = MAX(S_fd, P_mfd);
if(Nvt.servertype == SRV_RTELNET)
{
for(i = 0; i < MAX_CONTROL_SOCKS && P_contr[i] != -1; i++)
{
maxfd = MAX(maxfd, P_contr[i]);
FD_SET(P_contr[i], &readmask);
}
maxfd = MAX(maxfd, P_contr_listen);
FD_SET(P_contr_listen, &readmask);
}
maxfd++;
if(eventmask & (DEV_READ|DEV_PROBE))
FD_SET (P_mfd, &readmask);
if(eventmask & (DEV_EXCEPT))
FD_SET (P_mfd, &exceptmask);
if(eventmask & DEV_WRITE)
FD_SET (P_mfd, &writemask);
if(eventmask & (SOCK_READ|SOCK_PROBE))
FD_SET (S_fd, &readmask);
if(eventmask & SOCK_WRITE)
FD_SET (S_fd, &writemask);
tv.tv_sec = timeout / 1000;
tv.tv_usec = (timeout % 1000) * 1000;
ret = select (maxfd, &readmask , &writemask, &exceptmask, &tv);
if(Nvt.servertype == SRV_RTELNET && FD_ISSET(P_contr_listen, &readmask))
{
int flags;
sysmessage(MSG_WARNING, "Receiving control connection from FD %d\n", P_contr_listen);
if(P_contr[MAX_CONTROL_SOCKS - 1] != -1)
{
close(P_contr[0]);
FD_CLR(P_contr[0], &readmask); /* just in case */
for(i = 0; i < (MAX_CONTROL_SOCKS - 1); i++)
P_contr[i] = P_contr[i + 1];
P_contr[MAX_CONTROL_SOCKS - 1] = -1;
}
for(i = 0; P_contr[i] != -1; i++)
;
if(fcntl(P_contr_listen, F_SETFL, O_NONBLOCK) == -1)
{
sysmessage(MSG_ERR, "Can't set non-blocking IO.\n");
_exit(1);
}
P_contr[i] = accept(P_contr_listen, NULL, NULL);
if(P_contr[i] == -1)
{
sysmessage(MSG_ERR, "Error in accept on control socket.\n");
}
else
{
if( ((flags = fcntl(P_contr[i], F_GETFL)) == -1)
|| fcntl(P_contr[i], F_SETFL, flags & O_NONBLOCK))
sysmessage(MSG_ERR, "Can't set non-blocking IO on control socket!\n");
else
sysmessage(MSG_WARNING, "New control socket FD=%d\n", P_contr[i]);
}
}
if(FD_ISSET(P_mfd, &readmask) || FD_ISSET(P_mfd, &exceptmask))
{
if(Debug > 2)
{
if(FD_ISSET(P_mfd, &exceptmask))
sysmessage (MSG_WARNING, "Pty exception\n");
}
if(eventmask & DEV_PROBE)
{
if((msgtype = dev_probe()) == -1)
{
sysmessage(MSG_WARNING, "Hang up PTY PROBE\n");
Hang_up = TRUE;
return -1;
}
imminent_event(msgtype);
}
else
{
if(dev_getdata() == -1)
{
sysmessage (MSG_WARNING, "Hang up PTY GETDATA\n");
Hang_up = TRUE;
return(-1);
}
}
}
else
{
if(eventmask & DEV_READ)
{ /* pause, check slave status */
dev_closeslave();
}
}
if(FD_ISSET (P_mfd, &writemask))
{
SET_EVENT(EV_UP, EV_UPWROK, 0, 0);
}
if(FD_ISSET (S_fd, &readmask))
{
if(tel_getdata() == -1)
{
sysmessage(MSG_WARNING, "Hang up NVT GETDATA\n");
Hang_up = TRUE;
return -1;
}
}
if(FD_ISSET (S_fd, &writemask))
{
SET_EVENT(EV_RN, EV_RNWROK, 0, 0);
}
if(Nvt.servertype == SRV_RTELNET)
{
for(i = 0; i < MAX_CONTROL_SOCKS && P_contr[i] != -1; i++)
{
if(FD_ISSET(P_contr[i], &readmask))
{
s_control s;
if(recv(P_contr[i], &s, sizeof(s), MSG_WAITALL) != sizeof(s)
|| s.size != sizeof(s))
{
sysmessage(MSG_WARNING, "Closing control connection.\n");
close(P_contr[i]);
for(j = i; j < (MAX_CONTROL_SOCKS - 1); j++)
P_contr[j] = P_contr[j + 1];
P_contr[MAX_CONTROL_SOCKS - 1] = -1;
}
else
{
switch(s.oper)
{
case eSET_SPEED:
sync_comport_command(USR_COM_SET_BAUDRATE, s.val);
s.val = Comport.portconfig.speed;
break;
case eSEND_BREAK:
if(s.val == 0)
{
tv.tv_sec = 0;
tv.tv_usec = 250000;
}
else
{
tv.tv_sec = s.val / 4;
tv.tv_usec = (s.val % 4) * 250000;
}
sync_comport_command(USR_COM_SET_CONTROL, COM_BREAK_ON);
select(0, NULL, NULL, NULL, &tv);
sync_comport_command(USR_COM_SET_CONTROL, COM_BREAK_OFF);
break;
case eSET_CSIZE:
sync_comport_command(USR_COM_SET_DATASIZE, s.val);
s.val = Comport.portconfig.datasize;
break;
case eSET_PARITY:
sync_comport_command(USR_COM_SET_PARITY, s.val);
s.val = Comport.portconfig.parity;
break;
case eSET_STOPSIZE:
sync_comport_command(USR_COM_SET_STOPSIZE, s.val);
s.val = Comport.portconfig.stopsize;
break;
case eSET_CONTROL:
sync_comport_command(USR_COM_SET_CONTROL, s.val);
/* BUG we need to maintain com port state here as well because one field is
* used for several things in the protocol
* s.val = Comport.portconfig.flowc; */
break;
} /* end switch */
if(send(P_contr[i], &s, sizeof(s), 0) != sizeof(s))
{
sysmessage(MSG_WARNING, "Lost control connection to client.\n");
close(P_contr[i]);
for(j = i ; j < (MAX_CONTROL_SOCKS - 1); j++)
P_contr[j] = P_contr[j + 1];
P_contr[MAX_CONTROL_SOCKS - 1] = -1;
i--;
}
}
}
}
}
# ifdef TSR_MEASURE
ioscheds++;
# endif
return (ret);
}
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