1 | /**
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2 | * @file
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3 | *
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4 | * Neighbor discovery and stateless address autoconfiguration for IPv6.
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5 | * Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862
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6 | * (Address autoconfiguration).
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7 | */
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8 |
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9 | /*
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10 | * Copyright (c) 2010 Inico Technologies Ltd.
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11 | * All rights reserved.
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12 | *
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13 | * Redistribution and use in source and binary forms, with or without modification,
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14 | * are permitted provided that the following conditions are met:
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15 | *
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16 | * 1. Redistributions of source code must retain the above copyright notice,
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17 | * this list of conditions and the following disclaimer.
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18 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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19 | * this list of conditions and the following disclaimer in the documentation
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20 | * and/or other materials provided with the distribution.
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21 | * 3. The name of the author may not be used to endorse or promote products
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22 | * derived from this software without specific prior written permission.
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23 | *
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24 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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25 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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26 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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27 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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28 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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29 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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30 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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31 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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32 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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33 | * OF SUCH DAMAGE.
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34 | *
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35 | * This file is part of the lwIP TCP/IP stack.
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36 | *
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37 | * Author: Ivan Delamer <delamer@inicotech.com>
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38 | *
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39 | *
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40 | * Please coordinate changes and requests with Ivan Delamer
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41 | * <delamer@inicotech.com>
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42 | */
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43 |
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44 | #ifndef LWIP_HDR_ND6_H
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45 | #define LWIP_HDR_ND6_H
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46 |
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47 | #include "lwip/opt.h"
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48 |
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49 | #if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */
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50 |
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51 | #include "lwip/ip6_addr.h"
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52 | #include "lwip/err.h"
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53 |
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54 | #ifdef __cplusplus
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55 | extern "C" {
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56 | #endif
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57 |
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58 | /** 1 second period */
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59 | #define ND6_TMR_INTERVAL 1000
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60 |
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61 | /** Router solicitations are sent in 4 second intervals (see RFC 4861, ch. 6.3.7) */
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62 | #ifndef ND6_RTR_SOLICITATION_INTERVAL
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63 | #define ND6_RTR_SOLICITATION_INTERVAL 4000
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64 | #endif
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65 |
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66 | struct pbuf;
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67 | struct netif;
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68 |
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69 | void nd6_tmr(void);
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70 | void nd6_input(struct pbuf *p, struct netif *inp);
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71 | void nd6_clear_destination_cache(void);
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72 | struct netif *nd6_find_route(const ip6_addr_t *ip6addr);
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73 | err_t nd6_get_next_hop_addr_or_queue(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr, const u8_t **hwaddrp);
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74 | u16_t nd6_get_destination_mtu(const ip6_addr_t *ip6addr, struct netif *netif);
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75 | #if LWIP_ND6_TCP_REACHABILITY_HINTS
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76 | void nd6_reachability_hint(const ip6_addr_t *ip6addr);
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77 | #endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */
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78 | void nd6_cleanup_netif(struct netif *netif);
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79 | #if LWIP_IPV6_MLD
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80 | void nd6_adjust_mld_membership(struct netif *netif, s8_t addr_idx, u8_t new_state);
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81 | #endif /* LWIP_IPV6_MLD */
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82 | void nd6_restart_netif(struct netif *netif);
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83 |
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84 | #ifdef __cplusplus
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85 | }
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86 | #endif
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87 |
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88 | #endif /* LWIP_IPV6 */
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89 |
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90 | #endif /* LWIP_HDR_ND6_H */
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