/****************************************************************************
* examples/igmp/igmp.c
*
* Copyright (C) 2010-2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdio.h>
#include <unistd.h>
#include <debug.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <netinet/in.h>
#include <apps/netutils/netlib.h>
#include <apps/netutils/ipmsfilter.h>
#include "igmp.h"
/****************************************************************************
* Definitions
****************************************************************************/
/* Check if the destination address is a multicast address
*
* - IPv4: multicast addresses lie in the class D group -- The address range
* 224.0.0.0 to 239.255.255.255 (224.0.0.0/4)
*
* - IPv6 multicast addresses are have the high-order octet of the
* addresses=0xff (ff00::/8.)
*/
#if ((CONFIG_EXAMPLES_IGMP_GRPADDR & 0xffff0000) < 0xe0000000ul) || \
((CONFIG_EXAMPLES_IGMP_GRPADDR & 0xffff0000) > 0xeffffffful)
# error "Bad range for IGMP group address"
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* igmp_main
****************************************************************************/
#ifdef CONFIG_BUILD_KERNEL
int main(int argc, FAR char *argv[])
#else
int igmp_main(int argc, char *argv[])
#endif
{
struct in_addr addr;
#if defined(CONFIG_EXAMPLES_IGMP_NOMAC)
uint8_t mac[IFHWADDRLEN];
#endif
message("Configuring Ethernet...\n");
/* Many embedded network interfaces must have a software assigned MAC */
#ifdef CONFIG_EXAMPLES_IGMP_NOMAC
mac[0] = 0x00;
mac[1] = 0xe0;
mac[2] = 0xde;
mac[3] = 0xad;
mac[4] = 0xbe;
mac[5] = 0xef;
netlib_setmacaddr("eth0", mac);
#endif
/* Set up our host address */
addr.s_addr = HTONL(CONFIG_EXAMPLES_IGMP_IPADDR);
netlib_sethostaddr("eth0", &addr);
/* Set up the default router address */
addr.s_addr = HTONL(CONFIG_EXAMPLES_IGMP_DRIPADDR);
netlib_setdraddr("eth0", &addr);
/* Setup the subnet mask */
addr.s_addr = HTONL(CONFIG_EXAMPLES_IGMP_NETMASK);
netlib_setnetmask("eth0", &addr);
/* Not much of a test for now */
/* Join the group */
message("Join group...\n");
addr.s_addr = HTONL(CONFIG_EXAMPLES_IGMP_GRPADDR);
ipmsfilter("eth0", &addr, MCAST_INCLUDE);
/* Wait a while */
message("Wait for timeout...\n");
sleep(5);
/* Leave the group */
message("Leave group...\n");
ipmsfilter("eth0", &addr, MCAST_EXCLUDE);
/* Wait a while */
sleep(5);
message("Exiting...\n");
return 0;
}
