diff options
Diffstat (limited to 'apps/netutils/netlib/netlib_ipmsfilter.c')
-rw-r--r-- | apps/netutils/netlib/netlib_ipmsfilter.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/apps/netutils/netlib/netlib_ipmsfilter.c b/apps/netutils/netlib/netlib_ipmsfilter.c new file mode 100644 index 000000000..1068d0804 --- /dev/null +++ b/apps/netutils/netlib/netlib_ipmsfilter.c @@ -0,0 +1,116 @@ +/**************************************************************************** + * netutils/netlib/uip_setmultiaddr.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 <sys/socket.h> +#include <sys/ioctl.h> +#include <stdint.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> +#include <debug.h> + +#include <netinet/in.h> +#include <sys/sockio.h> + +#include <apps/netutils/netlib.h> +#include <apps/netutils/ipmsfilter.h> + +#ifdef CONFIG_NET_IGMP + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: ipmsfilter + * + * Description: + * Add or remove an IP address from a multicast filter set. + * + * Parameters: + * ifname The name of the interface to use, size must less than IMSFNAMSIZ + * multiaddr Multicast group address to add/remove (network byte order) + * fmode MCAST_INCLUDE: Add multicast address + * MCAST_EXCLUDE: Remove multicast address + * + * Return: + * 0 on sucess; Negated errno on failure + * + ****************************************************************************/ + +int ipmsfilter(FAR const char *ifname, FAR const struct in_addr *multiaddr, + uint32_t fmode) +{ + int ret = ERROR; + + nvdbg("ifname: %s muliaddr: %08x fmode: %ld\n", ifname, *multiaddr, fmode); + if (ifname && multiaddr) + { + /* Get a socket (only so that we get access to the INET subsystem) */ + + int sockfd = socket(PF_INET, NETLIB_SOCK_IOCTL, 0); + if (sockfd >= 0) + { + struct ip_msfilter imsf; + + /* Put the driver name into the request */ + + strncpy(imsf.imsf_name, ifname, IMSFNAMSIZ); + + /* Put the new address into the request */ + + imsf.imsf_multiaddr.s_addr = multiaddr->s_addr; + + /* Perforom the ioctl to set the MAC address */ + + imsf.imsf_fmode = fmode; + ret = ioctl(sockfd, SIOCSIPMSFILTER, (unsigned long)&imsf); + close(sockfd); + } + } + return ret; +} + +#endif /* CONFIG_NET_IGM */ |