/**************************************************************************** * examples/igmp/igmp.c * * Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 #include #include #include #include #include #include #include #include #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_EXAMPLE_IGMP_GRPADDR & 0xffff0000) < 0xe0000000ul) || \ ((CONFIG_EXAMPLE_IGMP_GRPADDR & 0xffff0000) > 0xeffffffful) # error "Bad range for IGMP group address" #endif /**************************************************************************** * Private Data ****************************************************************************/ /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * user_start ****************************************************************************/ int user_start(int argc, char *argv[]) { struct in_addr addr; #if defined(CONFIG_EXAMPLE_IGMP_NOMAC) uint8_t mac[IFHWADDRLEN]; #endif message("Configuring Ethernet...\n"); /* Many embedded network interfaces must have a software assigned MAC */ #ifdef CONFIG_EXAMPLE_IGMP_NOMAC mac[0] = 0x00; mac[1] = 0xe0; mac[2] = 0xb0; mac[3] = 0x0b; mac[4] = 0xba; mac[5] = 0xbe; uip_setmacaddr("eth0", mac); #endif /* Set up our host address */ addr.s_addr = HTONL(CONFIG_EXAMPLE_IGMP_IPADDR); uip_sethostaddr("eth0", &addr); /* Set up the default router address */ addr.s_addr = HTONL(CONFIG_EXAMPLE_IGMP_DRIPADDR); uip_setdraddr("eth0", &addr); /* Setup the subnet mask */ addr.s_addr = HTONL(CONFIG_EXAMPLE_IGMP_NETMASK); uip_setnetmask("eth0", &addr); /* Not much of a test for now */ /* Join the group */ message("Join group...\n"); addr.s_addr = HTONL(CONFIG_EXAMPLE_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; }