default_netif.c

00001 /*
00002  * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
00003  * All rights reserved. 
00004  * 
00005  * Redistribution and use in source and binary forms, with or without modification, 
00006  * are permitted provided that the following conditions are met:
00007  *
00008  * 1. Redistributions of source code must retain the above copyright notice,
00009  *    this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright notice,
00011  *    this list of conditions and the following disclaimer in the documentation
00012  *    and/or other materials provided with the distribution.
00013  * 3. The name of the author may not be used to endorse or promote products
00014  *    derived from this software without specific prior written permission. 
00015  *
00016  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
00017  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
00018  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
00019  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
00020  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
00021  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
00022  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
00023  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
00024  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
00025  * OF SUCH DAMAGE.
00026  *
00027  * This file is part of the lwIP TCP/IP stack.
00028  * 
00029  * Author: Adam Dunkels <adam@sics.se>
00030  *
00031  */
00032 
00033 #if defined(WIN32) || defined(_WIN32) || defined(__WIN32) && !defined(__CYGWIN__)
00034 
00035     #include "lwip/opt.h"
00036 
00037     #include "lwip/netif.h"
00038     #include "lwip/ip_addr.h"
00039     #include "lwip/tcpip.h"
00040     #include "../pcapif.h"
00041     #include "examples/example_app/default_netif.h"
00042 
00043     static struct netif netif;
00044 
00045     #if LWIP_IPV4
00046     #define NETIF_ADDRS ipaddr, netmask, gw,
00047     void init_default_netif(const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw)
00048     #else
00049     #define NETIF_ADDRS
00050     void init_default_netif(void)
00051     #endif
00052     {
00053     #if NO_SYS
00054       netif_add(&netif, NETIF_ADDRS NULL, pcapif_init, netif_input);
00055     #else  /* NO_SYS */
00056       netif_add(&netif, NETIF_ADDRS NULL, pcapif_init, tcpip_input);
00057     #endif /* NO_SYS */
00058       netif_set_default(&netif);
00059     }
00060 
00061     void
00062     default_netif_poll(void)
00063     {
00064     #if !PCAPIF_RX_USE_THREAD
00065       /* check for packets and link status*/
00066       pcapif_poll(&netif);
00067       /* When pcapif_poll comes back, there are not packets, so sleep to
00068          prevent 100% CPU load. Don't do this in an embedded system since it
00069          increases latency! */
00070       sys_msleep(1);
00071     #else /* !PCAPIF_RX_USE_THREAD */
00072       sys_msleep(50);
00073     #endif /* !PCAPIF_RX_USE_THREAD */
00074     }
00075 
00076     void
00077     default_netif_shutdown(void)
00078     {
00079       /* release the pcap library... */
00080       pcapif_shutdown(&netif);
00081     }
00082 #endif