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/**
* @file
*
* Neighbor discovery and stateless address autoconfiguration for IPv6.
* Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862
* (Address autoconfiguration).
*/
/*
* 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_ND6_H
#define LWIP_HDR_ND6_H
#include "lwip/opt.h"
#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
#include "lwip/ip6_addr.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
/** 1 second period */
#define ND6_TMR_INTERVAL 1000
/** Router solicitations are sent in 4 second intervals (see RFC 4861, ch. 6.3.7) */
#ifndef ND6_RTR_SOLICITATION_INTERVAL
#define ND6_RTR_SOLICITATION_INTERVAL 4000
#endif
struct pbuf;
struct netif;
void nd6_tmr(void);
void nd6_input(struct pbuf *p, struct netif *inp);
void nd6_clear_destination_cache(void);
struct netif *nd6_find_route(const ip6_addr_t *ip6addr);
err_t nd6_get_next_hop_addr_or_queue(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr, const u8_t **hwaddrp);
u16_t nd6_get_destination_mtu(const ip6_addr_t *ip6addr, struct netif *netif);
#if LWIP_ND6_TCP_REACHABILITY_HINTS
void nd6_reachability_hint(const ip6_addr_t *ip6addr);
#endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */
void nd6_cleanup_netif(struct netif *netif);
#if LWIP_IPV6_MLD
void nd6_adjust_mld_membership(struct netif *netif, s8_t addr_idx, u8_t new_state);
#endif /* LWIP_IPV6_MLD */
void nd6_restart_netif(struct netif *netif);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IPV6 */
#endif /* LWIP_HDR_ND6_H */
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