/****************************************************************************
* netutils/netlib/netlib_setipmsfilter.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 */
