BadVPN – Blame information for rev 1
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1 | office | 1 | /** |
2 | * @file |
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3 | * |
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4 | * Multicast listener discovery for IPv6. Aims to be compliant with RFC 2710. |
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5 | * No support for MLDv2. |
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6 | */ |
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7 | |||
8 | /* |
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9 | * Copyright (c) 2010 Inico Technologies Ltd. |
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10 | * All rights reserved. |
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11 | * |
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12 | * Redistribution and use in source and binary forms, with or without modification, |
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13 | * are permitted provided that the following conditions are met: |
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14 | * |
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15 | * 1. Redistributions of source code must retain the above copyright notice, |
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16 | * this list of conditions and the following disclaimer. |
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17 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
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18 | * this list of conditions and the following disclaimer in the documentation |
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19 | * and/or other materials provided with the distribution. |
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20 | * 3. The name of the author may not be used to endorse or promote products |
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21 | * derived from this software without specific prior written permission. |
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22 | * |
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23 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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24 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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25 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
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26 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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27 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
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28 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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31 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
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32 | * OF SUCH DAMAGE. |
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33 | * |
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34 | * This file is part of the lwIP TCP/IP stack. |
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35 | * |
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36 | * Author: Ivan Delamer <delamer@inicotech.com> |
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37 | * |
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38 | * |
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39 | * Please coordinate changes and requests with Ivan Delamer |
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40 | * <delamer@inicotech.com> |
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41 | */ |
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42 | |||
43 | #ifndef LWIP_HDR_MLD6_H |
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44 | #define LWIP_HDR_MLD6_H |
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45 | |||
46 | #include "lwip/opt.h" |
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47 | |||
48 | #if LWIP_IPV6_MLD && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ |
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49 | |||
50 | #include "lwip/pbuf.h" |
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51 | #include "lwip/netif.h" |
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52 | |||
53 | #ifdef __cplusplus |
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54 | extern "C" { |
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55 | #endif |
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56 | |||
57 | /** MLD group */ |
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58 | struct mld_group { |
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59 | /** next link */ |
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60 | struct mld_group *next; |
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61 | /** multicast address */ |
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62 | ip6_addr_t group_address; |
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63 | /** signifies we were the last person to report */ |
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64 | u8_t last_reporter_flag; |
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65 | /** current state of the group */ |
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66 | u8_t group_state; |
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67 | /** timer for reporting */ |
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68 | u16_t timer; |
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69 | /** counter of simultaneous uses */ |
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70 | u8_t use; |
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71 | }; |
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72 | |||
73 | #define MLD6_TMR_INTERVAL 100 /* Milliseconds */ |
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74 | |||
75 | err_t mld6_stop(struct netif *netif); |
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76 | void mld6_report_groups(struct netif *netif); |
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77 | void mld6_tmr(void); |
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78 | struct mld_group *mld6_lookfor_group(struct netif *ifp, const ip6_addr_t *addr); |
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79 | void mld6_input(struct pbuf *p, struct netif *inp); |
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80 | err_t mld6_joingroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr); |
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81 | err_t mld6_joingroup_netif(struct netif *netif, const ip6_addr_t *groupaddr); |
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82 | err_t mld6_leavegroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr); |
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83 | err_t mld6_leavegroup_netif(struct netif *netif, const ip6_addr_t *groupaddr); |
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84 | |||
85 | /** @ingroup mld6 |
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86 | * Get list head of MLD6 groups for netif. |
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87 | * Note: The allnodes group IP is NOT in the list, since it must always |
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88 | * be received for correct IPv6 operation. |
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89 | * @see @ref netif_set_mld_mac_filter() |
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90 | */ |
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91 | #define netif_mld6_data(netif) ((struct mld_group *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6)) |
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92 | |||
93 | #ifdef __cplusplus |
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94 | } |
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95 | #endif |
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96 | |||
97 | #endif /* LWIP_IPV6_MLD && LWIP_IPV6 */ |
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98 | |||
99 | #endif /* LWIP_HDR_MLD6_H */ |