159 lines
4.9 KiB
C
159 lines
4.9 KiB
C
/****************************************************************************
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* examples/igmp/igmp.c
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*
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* Copyright (C) 2010-2011, 2018 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <debug.h>
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#include <arpa/inet.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include "netutils/netlib.h"
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#include "netutils/ipmsfilter.h"
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#include "igmp.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Check if the destination address is a multicast address
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*
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* - IPv4: multicast addresses lie in the class D group -- The address range
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* 224.0.0.0 to 239.255.255.255 (224.0.0.0/4)
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*
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* - IPv6 multicast addresses are have the high-order octet of the
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* addresses=0xff (ff00::/8.)
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*/
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#if ((CONFIG_EXAMPLES_IGMP_GRPADDR & 0xffff0000) < 0xe0000000ul) || \
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((CONFIG_EXAMPLES_IGMP_GRPADDR & 0xffff0000) > 0xeffffffful)
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# error "Bad range for IGMP group address"
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* igmp_main
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****************************************************************************/
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#ifdef BUILD_MODULE
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int main(int argc, FAR char *argv[])
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#else
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int igmp_main(int argc, char *argv[])
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#endif
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{
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struct in_addr addr;
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struct in_addr mcast;
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#if defined(CONFIG_EXAMPLES_IGMP_NOMAC)
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uint8_t mac[IFHWADDRLEN];
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#endif
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printf("Configuring Ethernet...\n");
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/* Many embedded network interfaces must have a software assigned MAC */
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#ifdef CONFIG_EXAMPLES_IGMP_NOMAC
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mac[0] = 0x00;
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mac[1] = 0xe0;
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mac[2] = 0xde;
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mac[3] = 0xad;
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mac[4] = 0xbe;
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mac[5] = 0xef;
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netlib_setmacaddr("eth0", mac);
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#endif
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/* Set up our host address */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_IGMP_IPADDR);
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netlib_set_ipv4addr("eth0", &addr);
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/* Set up the default router address */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_IGMP_DRIPADDR);
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netlib_set_dripv4addr("eth0", &addr);
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/* Setup the subnet mask */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_IGMP_NETMASK);
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netlib_set_ipv4netmask("eth0", &addr);
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/* New versions of netlib_set_ipvXaddr will not bring the network up,
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* So ensure the network is really up at this point.
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*/
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netlib_ifup("eth0");
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/* Not much of a test for now */
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addr.s_addr = HTONL(CONFIG_EXAMPLES_IGMP_IPADDR);
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mcast.s_addr = HTONL(CONFIG_EXAMPLES_IGMP_GRPADDR);
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/* Join the group */
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printf("Join group...\n");
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ipmsfilter(&addr, &mcast, MCAST_INCLUDE);
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/* Wait a while */
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printf("Wait for timeout...\n");
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sleep(5);
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/* Leave the group */
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printf("Leave group...\n");
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ipmsfilter(&addr, &mcast, MCAST_EXCLUDE);
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/* Wait a while */
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sleep(5);
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printf("Exiting...\n");
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return 0;
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}
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