123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109 |
- /****************************************************************************
- * net/igmp/igmp_init.c
- * IGMP initialization logic
- *
- * Copyright (C) 2010, 2014 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * The NuttX implementation of IGMP was inspired by the IGMP add-on for the
- * lwIP TCP/IP stack by Steve Reynolds:
- *
- * Copyright (c) 2002 CITEL Technologies Ltd.
- * All rights reserved.
- *
- * 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 of CITEL Technologies Ltd 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 CITEL TECHNOLOGIES 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 CITEL TECHNOLOGIES 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 <assert.h>
- #include <debug.h>
- #include <nuttx/net/ip.h>
- #include <nuttx/net/igmp.h>
- #include "devif/devif.h"
- #include "igmp/igmp.h"
- #ifdef CONFIG_NET_IGMP
- /****************************************************************************
- * Public Data
- ****************************************************************************/
- in_addr_t g_ipv4_allsystems;
- in_addr_t g_ipv4_allrouters;
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: igmp_initialize
- *
- * Description:
- * Perform one-time IGMP initialization.
- *
- ****************************************************************************/
- void igmp_initialize(void)
- {
- ninfo("IGMP initializing\n");
- net_ipaddr(g_ipv4_allrouters, 224, 0, 0, 2);
- net_ipaddr(g_ipv4_allsystems, 224, 0, 0, 1);
- }
- /****************************************************************************
- * Name: igmp_devinit
- *
- * Description:
- * Called when a new network device is registered to configure that device
- * for IGMP support.
- *
- ****************************************************************************/
- void igmp_devinit(struct net_driver_s *dev)
- {
- ninfo("IGMP initializing dev %p\n", dev);
- DEBUGASSERT(dev->d_igmp_grplist.head == NULL);
- /* Add the all systems address to the group */
- (void)igmp_grpalloc(dev, &g_ipv4_allsystems);
- /* Allow the IGMP messages at the MAC level */
- igmp_addmcastmac(dev, &g_ipv4_allrouters);
- igmp_addmcastmac(dev, &g_ipv4_allsystems);
- }
- #endif /* CONFIG_NET_IGMP */
|