1 | /**
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2 | * @file
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3 | * MLD6 protocol definitions
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4 | */
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5 |
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6 | /*
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7 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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8 | * All rights reserved.
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9 | *
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10 | * Redistribution and use in source and binary forms, with or without modification,
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11 | * are permitted provided that the following conditions are met:
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12 | *
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13 | * 1. Redistributions of source code must retain the above copyright notice,
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14 | * this list of conditions and the following disclaimer.
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15 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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16 | * this list of conditions and the following disclaimer in the documentation
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17 | * and/or other materials provided with the distribution.
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18 | * 3. The name of the author may not be used to endorse or promote products
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19 | * derived from this software without specific prior written permission.
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20 | *
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21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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22 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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23 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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24 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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26 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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29 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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30 | * OF SUCH DAMAGE.
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31 | *
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32 | * This file is part of the lwIP TCP/IP stack.
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33 | *
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34 | * Author: Adam Dunkels <adam@sics.se>
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35 | *
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36 | */
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37 | #ifndef LWIP_HDR_PROT_MLD6_H
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38 | #define LWIP_HDR_PROT_MLD6_H
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39 |
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40 | #include "lwip/arch.h"
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41 | #include "lwip/prot/ip6.h"
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42 |
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43 | #ifdef __cplusplus
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44 | extern "C" {
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45 | #endif
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46 |
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47 | #define MLD6_HBH_HLEN 8
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48 | /** Multicast listener report/query/done message header. */
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49 | #ifdef PACK_STRUCT_USE_INCLUDES
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50 | # include "arch/bpstruct.h"
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51 | #endif
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52 | PACK_STRUCT_BEGIN
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53 | struct mld_header {
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54 | PACK_STRUCT_FLD_8(u8_t type);
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55 | PACK_STRUCT_FLD_8(u8_t code);
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56 | PACK_STRUCT_FIELD(u16_t chksum);
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57 | PACK_STRUCT_FIELD(u16_t max_resp_delay);
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58 | PACK_STRUCT_FIELD(u16_t reserved);
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59 | PACK_STRUCT_FLD_S(ip6_addr_p_t multicast_address);
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60 | /* Options follow. */
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61 | } PACK_STRUCT_STRUCT;
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62 | PACK_STRUCT_END
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63 | #ifdef PACK_STRUCT_USE_INCLUDES
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64 | # include "arch/epstruct.h"
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65 | #endif
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66 |
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67 | #ifdef __cplusplus
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68 | }
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69 | #endif
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70 |
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71 | #endif /* LWIP_HDR_PROT_MLD6_H */
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