1/** 2 * @file 3 * 4 * Neighbor discovery and stateless address autoconfiguration for IPv6. 5 * Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 6 * (Address autoconfiguration). 7 */ 8 9/* 10 * Copyright (c) 2010 Inico Technologies Ltd. 11 * All rights reserved. 12 * 13 * Redistribution and use in source and binary forms, with or without modification, 14 * are permitted provided that the following conditions are met: 15 * 16 * 1. Redistributions of source code must retain the above copyright notice, 17 * this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright notice, 19 * this list of conditions and the following disclaimer in the documentation 20 * and/or other materials provided with the distribution. 21 * 3. The name of the author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 27 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 28 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 29 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 32 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 33 * OF SUCH DAMAGE. 34 * 35 * This file is part of the lwIP TCP/IP stack. 36 * 37 * Author: Ivan Delamer <delamer@inicotech.com> 38 * 39 * 40 * Please coordinate changes and requests with Ivan Delamer 41 * <delamer@inicotech.com> 42 */ 43 44#ifndef LWIP_HDR_ND6_H 45#define LWIP_HDR_ND6_H 46 47#include "lwip/opt.h" 48 49#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ 50 51#include "lwip/ip6_addr.h" 52#include "lwip/err.h" 53 54#ifdef __cplusplus 55extern "C" { 56#endif 57 58/** 1 second period */ 59#define ND6_TMR_INTERVAL 1000 60 61struct pbuf; 62struct netif; 63 64void nd6_tmr(void); 65void nd6_input(struct pbuf *p, struct netif *inp); 66void nd6_clear_destination_cache(void); 67struct netif *nd6_find_route(const ip6_addr_t *ip6addr); 68err_t nd6_get_next_hop_addr_or_queue(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr, const u8_t **hwaddrp); 69u16_t nd6_get_destination_mtu(const ip6_addr_t *ip6addr, struct netif *netif); 70#if LWIP_ND6_TCP_REACHABILITY_HINTS 71void nd6_reachability_hint(const ip6_addr_t *ip6addr); 72#endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */ 73void nd6_cleanup_netif(struct netif *netif); 74#if LWIP_IPV6_MLD 75void nd6_adjust_mld_membership(struct netif *netif, s8_t addr_idx, u8_t new_state); 76#endif /* LWIP_IPV6_MLD */ 77 78#ifdef __cplusplus 79} 80#endif 81 82#endif /* LWIP_IPV6 */ 83 84#endif /* LWIP_HDR_ND6_H */ 85