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/**
* @file
*
* Multicast listener discovery for IPv6. Aims to be compliant with RFC 2710.
* No support for MLDv2.
*/
/*
* Copyright (c) 2010 Inico 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Ivan Delamer <delamer@inicotech.com>
*
*
* Please coordinate changes and requests with Ivan Delamer
* <delamer@inicotech.com>
*/
#ifndef LWIP_HDR_MLD6_H
#define LWIP_HDR_MLD6_H
#include "lwip/opt.h"
#if LWIP_IPV6_MLD && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
#include "lwip/pbuf.h"
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
/** MLD group */
struct mld_group {
/** next link */
struct mld_group *next;
/** multicast address */
ip6_addr_t group_address;
/** signifies we were the last person to report */
u8_t last_reporter_flag;
/** current state of the group */
u8_t group_state;
/** timer for reporting */
u16_t timer;
/** counter of simultaneous uses */
u8_t use;
};
#define MLD6_TMR_INTERVAL 100 /* Milliseconds */
err_t mld6_stop(struct netif *netif);
void mld6_report_groups(struct netif *netif);
void mld6_tmr(void);
struct mld_group *mld6_lookfor_group(struct netif *ifp, const ip6_addr_t *addr);
void mld6_input(struct pbuf *p, struct netif *inp);
err_t mld6_joingroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr);
err_t mld6_joingroup_netif(struct netif *netif, const ip6_addr_t *groupaddr);
err_t mld6_leavegroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr);
err_t mld6_leavegroup_netif(struct netif *netif, const ip6_addr_t *groupaddr);
/** @ingroup mld6
* Get list head of MLD6 groups for netif.
* Note: The allnodes group IP is NOT in the list, since it must always
* be received for correct IPv6 operation.
* @see @ref netif_set_mld_mac_filter()
*/
#define netif_mld6_data(netif) ((struct mld_group *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6))
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV6_MLD && LWIP_IPV6 */
#endif /* LWIP_HDR_MLD6_H */