lwip-contrib-mac/ports/unix/proj/unixsim/simnode.c

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/*
* Copyright (c) 2001-2003 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <adam@sics.se>
*
*/
#include "lwip/debug.h"
#include <unistd.h>
#include "lwip/mem.h"
#include "lwip/memp.h"
#include "lwip/sys.h"
#include "lwip/tcp_impl.h"
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#include "lwip/stats.h"
#include "lwip/tcpip.h"
#include "netif/unixif.h"
#include "netif/dropif.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"
/* nonstatic debug cmd option, exported in lwipopts.h */
unsigned char debug_flags;
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/*-----------------------------------------------------------------------------------*/
static void
tcp_timeout(void *data)
{
#if TCP_DEBUG
tcp_debug_print_pcbs();
#endif /* TCP_DEBUG */
sys_timeout(5000, tcp_timeout, NULL);
}
/*-----------------------------------------------------------------------------------*/
struct netif netif_unix;
/*-----------------------------------------------------------------------------------*/
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static void
tcpip_init_done(void *arg)
{
ip_addr_t ipaddr, netmask, gw;
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sys_sem_t *sem;
sem = arg;
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IP4_ADDR(&gw, 192,168,1,1);
IP4_ADDR(&ipaddr, 192,168,1,2);
IP4_ADDR(&netmask, 255,255,255,0);
netif_set_default(netif_add(&netif_unix, &ipaddr, &netmask, &gw, NULL, unixif_init_client,
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tcpip_input));
Add the following features and bugfixes: Added select() functionality to sockets library. Support for errno in sockets library. Byte ordering fixes. basic lwip_ioctl(), FIONREAD, get/setsockopt() etc. support - added additional argument to netif_add to pass state pointer so that the if_init function has access to context information before the interface is added, without accessing globals. - added netif_remove() - to conserve cpu load the tcpip_tcp_timer should only be active when tcbs that need it exist. - pass length of available data to callbacks for NETCONN_EVT_RCV events - added tcpip_link_input(), a hack to allow processing of PPP packets in tcpip_thread() context. This saves threads and context switches. - renamed incompatible ASSERT() macro to LWIP_ASSERT() to avoid name collision. - changed a bunch of %d's to %u's in format strings for unsigned values. - added ip_frag to lwip_stats. - changed IP_REASS_MAXAGE and IP_REASS_TMO defaults to more realistic values. - added sys_timeout_remove() function to cancel timeouts (needed by PPP amongst other things). - tolerate NULL returns from sys_arch_timeouts() since some threads might not need to use or have timeouts. - added sys_sem_wait_timeout() - moved mem_malloc() function to end of mem.c to work around tasking compiler bug. - automatically bind to local tcp port if 0. - allow customization of port ranges for automatic local bindings. - corrected various typos, spelling errors, etc.. Thanks to Marc Boucher for many of these changes.
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/* netif_set_default(netif_add(&ipaddr, &netmask, &gw, NULL, sioslipif_init1,
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tcpip_input)); */
tcpecho_init();
shell_init();
httpd_init();
udpecho_init();
printf("Applications started.\n");
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sys_timeout(5000, tcp_timeout, NULL);
sys_sem_signal(sem);
}
/*-----------------------------------------------------------------------------------*/
static void
main_thread(void *arg)
{
sys_sem_t sem;
if(sys_sem_new(&sem, 0) != ERR_OK) {
LWIP_ASSERT("Failed to create semaphore", 0);
}
tcpip_init(tcpip_init_done, &sem);
sys_sem_wait(&sem);
printf("TCP/IP initialized.\n");
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#ifdef MEM_PERF
mem_perf_init("/tmp/memstats.client");
#endif /* MEM_PERF */
/* Block forever. */
sys_sem_wait(&sem);
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}
/*-----------------------------------------------------------------------------------*/
int
main(int argc, char **argv)
{
#ifdef PERF
perf_init("/tmp/client.perf");
#endif /* PERF */
tcpdump_init();
printf("System initialized.\n");
sys_thread_new("main_thread", main_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
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pause();
return 0;
}
/*-----------------------------------------------------------------------------------*/