ISC DHCP For QNX

QNX Newsgroups (Archives) qdn.public.porting
1

Below is my version of the qnx.h header file for dhcp.3.0.1rc9 - the current release candidate. Perhaps QNX would like to submit their version to ISC.

Problem with current ISC version for QNX is dhclient was not constructing the packet properly in 6.1 and 6.2 because the hardware address was not handled properly in discovery.c. With the right ifdefs the problem is fixed. Both server and client seem to work fine with the small changes. Name server updates from DHCP server also seem to work OK.

My problem is that both server and client can only communicate via one interface, not two, because of routing issues in guess. I must talk out both interfaces at server and client. Anybody have any advice or should I hang it up? It would be nice to be able to set route for the device like you can in Linux. The default route is killing me.

I’ve tried using Berkeley Packet Filter but can not connect to /dev/io-net/en_en0, if that’s even the right interface. Other flavors of UNIX have a device like /dev/bpf1 /dev/bpf2. tcpdump works so I’m confused.

The working header – hope it doesn’t get chopped up.

Kevin

/* qnx.h

System dependencies for QNX… */

/*

  • Copyright (c) 1996-1999 Internet Software Consortium.
  • All rights reserved.
  • Redistribution and use in source and binary forms, with or without
  • modification, are permitted provided that the following conditions
  • are met:
    1. Redistributions of source code must retain the above copyright
  • notice, this list of conditions and the following disclaimer.
    1. Redistributions in binary form must reproduce the above copyright
  • notice, this list of conditions and the following disclaimer in the
  • documentation and/or other materials provided with the distribution.
    1. Neither the name of The Internet Software Consortium nor the names
  • of its contributors may be used to endorse or promote products derived
  • from this software without specific prior written permission.
  • THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
  • CONTRIBUTORS ``AS IS’’ AND ANY EXPRESS OR IMPLIED WARRANTIES,
  • INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  • MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  • DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
  • CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  • SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  • LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  • USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  • ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  • OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  • OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  • SUCH DAMAGE.
  • This software has been written for the Internet Software Consortium
  • by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
  • To learn more about the Internet Software Consortium, see
  • ``http://www.isc.org/’’. To learn more about Vixie Enterprises,
  • see ``http://www.vix.com’’. To learn more about Nominum, Inc., see
  • ``http://www.nominum.com’’.
    */

#include <sys/types.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <setjmp.h>
#include <limits.h>
#include <syslog.h>
#include <sys/select.h>

#include <sys/wait.h>
#include <signal.h>

#ifdef QNXNTO
#include <sys/param.h>
#endif

#include <netdb.h>
extern int h_errno;

#include <net/if.h>
#include <net/if_dl.h>
#ifndef QNXNTO

define INADDR_LOOPBACK ((u_long)0x7f000001)

#endif

/* Varargs stuff… */
#include <stdarg.h>
#define VA_DOTDOTDOT …
#define va_dcl
#define VA_start(list, last) va_start (list, last)

#ifndef _PATH_DHCPD_PID
#define _PATH_DHCPD_PID “/etc/dhcpd.pid”
#endif
#ifndef _PATH_DHCLIENT_PID
#define _PATH_DHCLIENT_PID “/etc/dhclient.pid”
#endif
#ifndef _PATH_DHCRELAY_PID
#define _PATH_DHCRELAY_PID “/etc/dhcrelay.pid”
#endif

#define EOL ‘\n’
#define VOIDPTR void *

/* Time stuff… /
#include <sys/time.h>
#define TIME time_t
#define GET_TIME(x) time ((x))
#define TIME_DIFF(high, low) ((high) - (low))
#define SET_TIME(x, y) ((x) = (y))
#define ADD_TIME(d, s1, s2) (*(d) = *(s1) + (s2))
#define SET_MAX_TIME(x) ((x) = INT_MAX)

#ifndef QNXNTO
typedef signed short int16_t;
typedef signed long int32_t;
#endif

typedef uint32_t u_int32_t;
typedef uint16_t u_int16_t;
typedef uint8_t u_int8_t;


#define strcasecmp( s1, s2 ) stricmp( s1, s2 )
#define strncasecmp( s1, s2, n ) strnicmp( s1, s2, n )
#define random() rand()

#define HAVE_SA_LEN
#define HAVE_AF_LINK
#define BROKEN_TM_GMT
#define USE_SOCKETS
#define HAVE_BINDTODEV

#ifndef QNXNTO

define NO_SNPRINTF

define vsnprintf( buf, size, fmt, list ) vsprintf( buf, fbuf, list )

#endif

#ifdef QNXNTO

define GET_HOST_ID_MISSING

#endif

/*
NOTE: to get the routing of the 255.255.255.255 broadcasts to work
under QNX, you need to issue the following command before starting
the daemon:

route add -interface 255.255.255.0

where is replaced by the hostname or IP number of the
machine that dhcpd is running on.
*/

#ifndef QNXNTO

if defined (NSUPDATE)

error NSUPDATE is not supported on QNX at this time!!

endif

#endif


#ifdef NEED_PRAND_CONF
#ifndef HAVE_DEV_RANDOM
/* You should find and install the /dev/random driver */

define HAVE_DEV_RANDOM 1

#endif /* HAVE_DEV_RANDOM */

const char *cmds[] = {
“/bin/ps -a 2>&1”,
“/bin/sin 2>&1”,
“/sbin/arp -an 2>&1”,
“/bin/netstat -an 2>&1”,
“/bin/df 2>&1”,
“/bin/sin fds 2>&1”,
“/bin/netstat -s 2>&1”,
“/bin/sin memory 2>&1”,
NULL
};

const char *dirs[] = {
“/tmp”,
“.”,
“/”,
“/var/spool”,
“/dev”,
“/var/spool/mail”,
“/home”,
NULL
};

const char files[] = {
“/proc/ipstats”,
“/proc/dumper”,
“/proc/self/as”,
“/var/log/messages”,
NULL
};
#endif / NEED_PRAND_CONF */