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Diffstat (limited to 'apps/examples/igmp/igmp.c')
-rwxr-xr-x | apps/examples/igmp/igmp.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/apps/examples/igmp/igmp.c b/apps/examples/igmp/igmp.c new file mode 100755 index 000000000..734a7e599 --- /dev/null +++ b/apps/examples/igmp/igmp.c @@ -0,0 +1,155 @@ +/**************************************************************************** + * examples/igmp/igmp.c + * + * Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 <net/if.h> +#include <net/uip/uip.h> +#include <apps/netutils/uiplib.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_EXAMPLE_IGMP_GRPADDR & 0xffff0000) < 0xe0000000ul) || \ + ((CONFIG_EXAMPLE_IGMP_GRPADDR & 0xffff0000) > 0xeffffffful) +# error "Bad range for IGMP group address" +#endif + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * user_initialize + ****************************************************************************/ + +#ifndef CONFIG_HAVE_WEAKFUNCTIONS +void user_initialize(void) +{ + /* Stub that must be provided only if the toolchain does + * not support weak functions. + */ +} +#endif + +/**************************************************************************** + * 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; +} |