simhost.c

Raw TCP/IP interface for lwIP 0.5

/*
 * Copyright (c) 2001, Swedish Institute of Computer Science.
 * 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. 
 * 2. 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. 
 * 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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 file is part of the lwIP TCP/IP stack.
 * 
 * Author: Adam Dunkels <[e-mail]>
 *
 * $Id: simhost.c,v 1.10 2002/03/04 10:47:55 adam Exp $
 */

#include "lwip/debug.h"

#include <unistd.h>

#include "lwip/opt.h"

#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/sys.h"

#include "lwip/stats.h"


#include "lwip/tcpip.h"

#include "netif/tapif.h"
#include "netif/tunif.h"

#include "netif/unixif.h"
#include "netif/dropif.h"
#include "netif/pcapif.h"
#include "netif/loopif.h"

#include "netif/tcpdump.h"




#include "lwip/ip_addr.h"

#include "arch/perf.h"

#include "httpd.h"
#include "udpecho.h"
#include "tcpecho.h"
#include "shell.h"

/*-----------------------------------------------------------------------------------*/
static void
tcp_timeout(void *data)
{
#if TCP_DEBUG
  tcp_debug_print_pcbs();
#endif /* TCP_DEBUG */
  sys_timeout(5000, tcp_timeout, NULL);
}
/*-----------------------------------------------------------------------------------*/
static void
tcpip_init_done(void *arg)
{
  sys_sem_t *sem;
  sem = arg;
  sys_sem_signal(*sem);
}
/*-----------------------------------------------------------------------------------*/
static void
main_thread(void *arg)
{
  struct ip_addr ipaddr, netmask, gw;
  sys_sem_t sem;

  netif_init();

  sem = sys_sem_new(0);
  tcpip_init(tcpip_init_done, &sem);
  sys_sem_wait(sem);
  sys_sem_free(sem);
  printf("TCP/IP initialized.\n");
  
#if LWIP_DHCP
  {
    struct netif *netif;
    IP4_ADDR(&gw, 0,0,0,0);
    IP4_ADDR(&ipaddr, 0,0,0,0);
    IP4_ADDR(&netmask, 0,0,0,0);

    netif = netif_add(&ipaddr, &netmask, &gw, tapif_init,
		      tcpip_input);
    netif_set_default(netif);
    dhcp_init();
    dhcp_start(netif);
  }
#else
  IP4_ADDR(&gw, 192,168,0,1);
  IP4_ADDR(&ipaddr, 192,168,0,2);
  IP4_ADDR(&netmask, 255,255,255,0);
  
  netif_set_default(netif_add(&ipaddr, &netmask, &gw, tapif_init,
			      tcpip_input));
#endif
  /* Only used for testing purposes: */
  /*  IP4_ADDR(&gw, 193,10,66,1);
  IP4_ADDR(&ipaddr, 193,10,66,107);
  IP4_ADDR(&netmask, 255,255,252,0);
  
  netif_add(&ipaddr, &netmask, &gw, pcapif_init,
  tcpip_input);*/
  
  IP4_ADDR(&gw, 127,0,0,1);
  IP4_ADDR(&ipaddr, 127,0,0,1);
  IP4_ADDR(&netmask, 255,0,0,0);
  
  netif_add(&ipaddr, &netmask, &gw, loopif_init,
	    tcpip_input);
   
  tcpecho_init();
  shell_init();
  httpd_init();
  udpecho_init();
  
  printf("Applications started.\n");
    
  /*  sys_timeout(5000, tcp_timeout, NULL);*/

#ifdef MEM_PERF
  mem_perf_init("/tmp/memstats.client");
#endif /* MEM_PERF */

  /* Block for ever. */
  sem = sys_sem_new(0);
  sys_sem_wait(sem);
}
/*-----------------------------------------------------------------------------------*/
int
main(int argc, char **argv)
{
#ifdef PERF
  perf_init("/tmp/simhost.perf");
#endif /* PERF */
#ifdef STATS
  stats_init();
#endif /* STATS */
  sys_init();
  mem_init();
  memp_init();
  pbuf_init();

  tcpdump_init();

  
  printf("System initialized.\n");
    
  sys_thread_new((void *)(main_thread), NULL);
  pause();
  return 0;
}
/*-----------------------------------------------------------------------------------*/