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<div class="title">igmp.h</div> </div>
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<a href="../../df/dff/prot_2igmp_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>  </div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Copyright (c) 2001-2004 Swedish Institute of Computer Science.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification,</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright notice,</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright notice,</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * this list of conditions and the following disclaimer in the documentation</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * 3. The name of the author may not be used to endorse or promote products</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * derived from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * This file is part of the lwIP TCP/IP stack.</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * Author: Adam Dunkels <adam@sics.se></span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#ifndef LWIP_HDR_PROT_IGMP_H</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#define LWIP_HDR_PROT_IGMP_H</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include "<a class="code" href="../../d2/d2d/arch_8h.html">net/arch.h</a>"</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include "<a class="code" href="../../d1/da8/ip4__addr_8h.html">net/ip4_addr.h</a>"</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  </div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * IGMP constants</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#a6ff76a6f7654b21a70e216151c97a869"> 50</a></span> <span class="preprocessor">#define IGMP_TTL 1</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#ad91c1a732326c16656dc7059f807acfd"> 51</a></span> <span class="preprocessor">#define IGMP_MINLEN 8</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#a0b0944c1c4f2a64c79831d18f7d31802"> 52</a></span> <span class="preprocessor">#define ROUTER_ALERT 0x9404U</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#aa4bce84f942c375b780404c56f0ed51c"> 53</a></span> <span class="preprocessor">#define ROUTER_ALERTLEN 4</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * IGMP message types, including version number.</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#a0f85ab43aac98cc525c4d21b45bb08c9"> 58</a></span> <span class="preprocessor">#define IGMP_MEMB_QUERY 0x11 </span><span class="comment">/* Membership query */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#a7a18745c2691de97a594257e8588957e"> 59</a></span> <span class="preprocessor">#define IGMP_V1_MEMB_REPORT 0x12 </span><span class="comment">/* Ver. 1 membership report */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#a26b6b8b5dc43098b16d417a29b31a9e0"> 60</a></span> <span class="preprocessor">#define IGMP_V2_MEMB_REPORT 0x16 </span><span class="comment">/* Ver. 2 membership report */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#a4d87457009ed27ade2309cebe7a1dfcf"> 61</a></span> <span class="preprocessor">#define IGMP_LEAVE_GROUP 0x17 </span><span class="comment">/* Leave-group message */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">/* Group membership states */</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#a0357ddf34e5e88adaa654ad562adab54"> 64</a></span> <span class="preprocessor">#define IGMP_GROUP_NON_MEMBER 0</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#a9c2129b3fb6f212eac44192ced19d33d"> 65</a></span> <span class="preprocessor">#define IGMP_GROUP_DELAYING_MEMBER 1</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="../../df/dff/prot_2igmp_8h.html#a5b9419fe533da22ca7015cac97e8b1e3"> 66</a></span> <span class="preprocessor">#define IGMP_GROUP_IDLE_MEMBER 2</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#ifdef PACK_STRUCT_USE_INCLUDES</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor"># include "arch/bpstruct.h"</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <a class="code" href="../../dc/df0/cc_8h.html#a73199061891adf1b912d20835c7d5e96">PACK_STRUCT_BEGIN</a></div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="../../dc/d96/structigmp__msg.html"> 75</a></span> <span class="keyword">struct </span><a class="code" href="../../dc/d96/structigmp__msg.html">igmp_msg</a> {</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="../../dc/d96/structigmp__msg.html#a623a3baf99a86878b7d0c2a87a7f9935">PACK_STRUCT_FLD_8</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> igmp_msgtype);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="../../dc/d96/structigmp__msg.html#a623a3baf99a86878b7d0c2a87a7f9935">PACK_STRUCT_FLD_8</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> igmp_maxresp);</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="../../dc/d96/structigmp__msg.html#a875894e6ca7849ad9eae5f81f5eeab29">PACK_STRUCT_FIELD</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> igmp_checksum);</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="../../dc/d96/structigmp__msg.html#a935034863490ec706ba33f238b77126a">PACK_STRUCT_FLD_S</a>(<a class="code" href="../../de/d0f/prot_2ip4_8h.html#ae5011654fcbadf6b6582b8d49446107f">ip4_addr_p_t</a> igmp_group_address);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> } <a class="code" href="../../df/dff/prot_2igmp_8h.html#a5d6a573cb2d6ebb0fff6849b16a94c07">PACK_STRUCT_STRUCT</a>;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <a class="code" href="../../dc/df0/cc_8h.html#a465fef70f294e21cbf4ea51fc342f20e">PACK_STRUCT_END</a></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor">#ifdef PACK_STRUCT_USE_INCLUDES</span></div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor"># include "arch/epstruct.h"</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  </div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_HDR_PROT_IGMP_H */</span><span class="preprocessor"></span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="agroup__compiler__abstraction_html_ga77570ac4fcab86864fa1916e55676da2"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a></div><div class="ttdeci">uint16_t u16_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00124">arch.h:124</a></div></div>
<div class="ttc" id="astructigmp__msg_html"><div class="ttname"><a href="../../dc/d96/structigmp__msg.html">igmp_msg</a></div><div class="ttdef"><b>Definition:</b> <a href="../../df/dff/prot_2igmp_8h_source.html#l00075">igmp.h:75</a></div></div>
<div class="ttc" id="aarch_8h_html"><div class="ttname"><a href="../../d2/d2d/arch_8h.html">arch.h</a></div></div>
<div class="ttc" id="aprot_2igmp_8h_html_a5d6a573cb2d6ebb0fff6849b16a94c07"><div class="ttname"><a href="../../df/dff/prot_2igmp_8h.html#a5d6a573cb2d6ebb0fff6849b16a94c07">PACK_STRUCT_STRUCT</a></div><div class="ttdeci">PACK_STRUCT_BEGIN struct igmp_msg PACK_STRUCT_STRUCT</div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga4caecabca98b43919dd11be1c0d4cd8e"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a></div><div class="ttdeci">uint8_t u8_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00122">arch.h:122</a></div></div>
<div class="ttc" id="acc_8h_html_a73199061891adf1b912d20835c7d5e96"><div class="ttname"><a href="../../dc/df0/cc_8h.html#a73199061891adf1b912d20835c7d5e96">PACK_STRUCT_BEGIN</a></div><div class="ttdeci">#define PACK_STRUCT_BEGIN</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/df0/cc_8h_source.html#l00008">cc.h:8</a></div></div>
<div class="ttc" id="astructigmp__msg_html_a623a3baf99a86878b7d0c2a87a7f9935"><div class="ttname"><a href="../../dc/d96/structigmp__msg.html#a623a3baf99a86878b7d0c2a87a7f9935">igmp_msg::PACK_STRUCT_FLD_8</a></div><div class="ttdeci">PACK_STRUCT_FLD_8(u8_t igmp_msgtype)</div></div>
<div class="ttc" id="astructigmp__msg_html_a935034863490ec706ba33f238b77126a"><div class="ttname"><a href="../../dc/d96/structigmp__msg.html#a935034863490ec706ba33f238b77126a">igmp_msg::PACK_STRUCT_FLD_S</a></div><div class="ttdeci">PACK_STRUCT_FLD_S(ip4_addr_p_t igmp_group_address)</div></div>
<div class="ttc" id="aip4__addr_8h_html"><div class="ttname"><a href="../../d1/da8/ip4__addr_8h.html">ip4_addr.h</a></div></div>
<div class="ttc" id="astructigmp__msg_html_a875894e6ca7849ad9eae5f81f5eeab29"><div class="ttname"><a href="../../dc/d96/structigmp__msg.html#a875894e6ca7849ad9eae5f81f5eeab29">igmp_msg::PACK_STRUCT_FIELD</a></div><div class="ttdeci">PACK_STRUCT_FIELD(u16_t igmp_checksum)</div></div>
<div class="ttc" id="aprot_2ip4_8h_html_ae5011654fcbadf6b6582b8d49446107f"><div class="ttname"><a href="../../de/d0f/prot_2ip4_8h.html#ae5011654fcbadf6b6582b8d49446107f">ip4_addr_p_t</a></div><div class="ttdeci">typedefPACK_STRUCT_END struct ip4_addr_packed ip4_addr_p_t</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d0f/prot_2ip4_8h_source.html#l00061">ip4.h:61</a></div></div>
<div class="ttc" id="acc_8h_html_a465fef70f294e21cbf4ea51fc342f20e"><div class="ttname"><a href="../../dc/df0/cc_8h.html#a465fef70f294e21cbf4ea51fc342f20e">PACK_STRUCT_END</a></div><div class="ttdeci">#define PACK_STRUCT_END</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/df0/cc_8h_source.html#l00009">cc.h:9</a></div></div>
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