<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.16"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>UbixOS: net/core/ipv6/ip6_frag.c Source File</title>
<link href="../../tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../jquery.js"></script>
<script type="text/javascript" src="../../dynsections.js"></script>
<link href="../../navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="../../resize.js"></script>
<script type="text/javascript" src="../../navtreedata.js"></script>
<script type="text/javascript" src="../../navtree.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(document).ready(initResizable);
/* @license-end */</script>
<link href="../../doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">UbixOS
 <span id="projectnumber">2.0</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.16 -->
<script type="text/javascript" src="../../menudata.js"></script>
<script type="text/javascript" src="../../menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(function() {
initMenu('../../',false,false,'search.php','Search');
});
/* @license-end */</script>
<div id="main-nav"></div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function(){initNavTree('d9/deb/ip6__frag_8c_source.html','../../');});
/* @license-end */
</script>
<div id="doc-content">
<div class="header">
<div class="headertitle">
<div class="title">ip6_frag.c</div> </div>
</div><!--header-->
<div class="contents">
<a href="../../d9/deb/ip6__frag_8c.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="l00007"></a><span class="lineno"> 7</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * Copyright (c) 2010 Inico Technologies Ltd.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright notice,</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright notice,</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * this list of conditions and the following disclaimer in the documentation</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</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="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * derived from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</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="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</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="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * This file is part of the lwIP TCP/IP stack.</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * Author: Ivan Delamer <delamer@inicotech.com></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="comment"> *</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * Please coordinate changes and requests with Ivan Delamer</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * <delamer@inicotech.com></span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include "<a class="code" href="../../dc/dba/opt_8h.html">net/opt.h</a>"</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#include "<a class="code" href="../../d9/d74/ip6__frag_8h.html">net/ip6_frag.h</a>"</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include "<a class="code" href="../../d0/dca/ip6_8h.html">net/ip6.h</a>"</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include "<a class="code" href="../../db/da0/icmp6_8h.html">net/icmp6.h</a>"</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include "<a class="code" href="../../d9/d56/nd6_8h.html">net/nd6.h</a>"</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#include "<a class="code" href="../../da/d2f/ip_8h.html">net/ip.h</a>"</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#include "<a class="code" href="../../d0/d35/pbuf_8h.html">net/pbuf.h</a>"</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#include "<a class="code" href="../../df/dff/memp_8h.html">net/memp.h</a>"</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include "<a class="code" href="../../d9/d9b/stats_8h.html">net/stats.h</a>"</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#include <<a class="code" href="../../da/d66/string_8h.html">string.h</a>></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="preprocessor">#if LWIP_IPV6 && LWIP_IPV6_REASS </span><span class="comment">/* don't build if not configured for use in lwipopts.h */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#ifndef IP_REASS_CHECK_OVERLAP</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#define IP_REASS_CHECK_OVERLAP 1</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#endif </span><span class="comment">/* IP_REASS_CHECK_OVERLAP */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#ifndef IP_REASS_FREE_OLDEST</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor">#define IP_REASS_FREE_OLDEST 1</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#endif </span><span class="comment">/* IP_REASS_FREE_OLDEST */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#if IPV6_FRAG_COPYHEADER</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor">#define IPV6_FRAG_REQROOM ((s16_t)(sizeof(struct ip6_reass_helper) - IP6_FRAG_HLEN))</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor">#define IP_REASS_FLAG_LASTFRAG 0x01</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor">#ifdef PACK_STRUCT_USE_INCLUDES</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor"># include "arch/bpstruct.h"</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> <a class="code" href="../../dc/df0/cc_8h.html#a73199061891adf1b912d20835c7d5e96">PACK_STRUCT_BEGIN</a></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">struct </span>ip6_reass_helper {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="../../dc/df0/cc_8h.html#aab0b988124e37a978d9a88e7c1c778e0">PACK_STRUCT_FIELD</a>(<span class="keyword">struct</span> <a class="code" href="../../d9/db8/structpbuf.html">pbuf</a> *next_pbuf);</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="../../dc/df0/cc_8h.html#aab0b988124e37a978d9a88e7c1c778e0">PACK_STRUCT_FIELD</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> start);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="../../dc/df0/cc_8h.html#aab0b988124e37a978d9a88e7c1c778e0">PACK_STRUCT_FIELD</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> end);</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> } <a class="code" href="../../dc/df0/cc_8h.html#a9ebc500530d0d9e6cd0b81969f48bbc8">PACK_STRUCT_STRUCT</a>;</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <a class="code" href="../../dc/df0/cc_8h.html#a465fef70f294e21cbf4ea51fc342f20e">PACK_STRUCT_END</a></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="preprocessor">#ifdef PACK_STRUCT_USE_INCLUDES</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor"># include "arch/epstruct.h"</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  </div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment">/* static variables */</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">static</span> <span class="keyword">struct </span>ip6_reassdata *reassdatagrams;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">static</span> <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> ip6_reass_pbufcount;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="comment">/* Forward declarations. */</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">static</span> <span class="keywordtype">void</span> ip6_reass_free_complete_datagram(<span class="keyword">struct</span> ip6_reassdata *ipr);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#if IP_REASS_FREE_OLDEST</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keyword">static</span> <span class="keywordtype">void</span> ip6_reass_remove_oldest_datagram(<span class="keyword">struct</span> ip6_reassdata *ipr, <span class="keywordtype">int</span> pbufs_needed);</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="preprocessor">#endif </span><span class="comment">/* IP_REASS_FREE_OLDEST */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  </div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> ip6_reass_tmr(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> {</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">struct </span>ip6_reassdata *r, *tmp;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  </div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor">#if !IPV6_FRAG_COPYHEADER</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"sizeof(struct ip6_reass_helper) <= IP6_FRAG_HLEN, set IPV6_FRAG_COPYHEADER to 1"</span>,</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">sizeof</span>(<span class="keyword">struct</span> ip6_reass_helper) <= <a class="code" href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a>);</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="preprocessor">#endif </span><span class="comment">/* !IPV6_FRAG_COPYHEADER */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  r = reassdatagrams;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">while</span> (r != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">/* Decrement the timer. Once it reaches 0,</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"> * clean up the incomplete fragment assembly */</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">if</span> (r->timer > 0) {</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  r->timer--;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  r = r->next;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">/* reassembly timed out */</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  tmp = r;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="comment">/* get the next pointer before freeing */</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  r = r->next;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="comment">/* free the helper struct and all enqueued pbufs */</span></div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  ip6_reass_free_complete_datagram(tmp);</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  }</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  }</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> }</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  </div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> ip6_reass_free_complete_datagram(<span class="keyword">struct</span> ip6_reassdata *ipr)</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> {</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">struct </span>ip6_reassdata *prev;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> pbufs_freed = 0;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> clen;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">struct </span><a class="code" href="../../d9/db8/structpbuf.html">pbuf</a> *p;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keyword">struct </span>ip6_reass_helper *iprh;</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="preprocessor">#if LWIP_ICMP6</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  iprh = (<span class="keyword">struct </span>ip6_reass_helper *)ipr->p->payload;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  if (iprh->start == 0) {</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">/* The first fragment was received, send ICMP time exceeded. */</span></div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">/* First, de-queue the first pbuf from r->p. */</span></div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  p = ipr->p;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  ipr->p = iprh->next_pbuf;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="comment">/* Then, move back to the original ipv6 header (we are now pointing to Fragment header).</span></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"> This cannot fail since we already checked when receiving this fragment. */</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d0/d35/pbuf_8h.html#a27480c41c34021d4417691d327163626">pbuf_header_force</a>(p, (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a>)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> - (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)IPV6_FRAG_HDRREF(ipr->iphdr)))) {</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"ip6_reass_free: moving p->payload to ip6 header failed\n"</span>, 0);</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  }</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  icmp6_time_exceeded(p, <a class="code" href="../../d8/d5d/prot_2icmp6_8h.html#ad06bbf4ee72635ece968db41cbe6869eaec493420d61c80a21981b1aa32befe1f">ICMP6_TE_FRAG</a>);</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  clen = <a class="code" href="../../d0/d35/pbuf_8h.html#a5df7ac5ae59012fe9aeddba375a72190">pbuf_clen</a>(p);</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"pbufs_freed + clen <= 0xffff"</span>, pbufs_freed + clen <= 0xffff);</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  pbufs_freed += clen;</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="../../d7/d05/group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  }</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ICMP6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  </div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">/* First, free all received pbufs. The individual pbufs need to be released</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> separately as they have not yet been chained */</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  p = ipr->p;</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">while</span> (p != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">struct </span><a class="code" href="../../d9/db8/structpbuf.html">pbuf</a> *pcur;</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  iprh = (<span class="keyword">struct </span>ip6_reass_helper *)p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  pcur = p;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">/* get the next pointer before freeing */</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  p = iprh->next_pbuf;</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  clen = <a class="code" href="../../d0/d35/pbuf_8h.html#a5df7ac5ae59012fe9aeddba375a72190">pbuf_clen</a>(pcur);</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"pbufs_freed + clen <= 0xffff"</span>, pbufs_freed + clen <= 0xffff);</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  pbufs_freed += clen;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <a class="code" href="../../d7/d05/group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(pcur);</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  }</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  </div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="comment">/* Then, unchain the struct ip6_reassdata from the list and free it. */</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">if</span> (ipr == reassdatagrams) {</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  reassdatagrams = ipr->next;</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  prev = reassdatagrams;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">while</span> (prev != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">if</span> (prev->next == ipr) {</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  prev = prev->next;</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  }</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">if</span> (prev != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  prev->next = ipr->next;</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  }</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  }</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <a class="code" href="../../df/dff/memp_8h.html#aecd94926b7c2a0e23ae195f4ae97581f">memp_free</a>(MEMP_IP6_REASSDATA, ipr);</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  </div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">/* Finally, update number of pbufs in reassembly queue */</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"ip_reass_pbufcount >= clen"</span>, ip6_reass_pbufcount >= pbufs_freed);</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  ip6_reass_pbufcount -= pbufs_freed;</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> }</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  </div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="preprocessor">#if IP_REASS_FREE_OLDEST</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  </div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> ip6_reass_remove_oldest_datagram(<span class="keyword">struct</span> ip6_reassdata *ipr, <span class="keywordtype">int</span> pbufs_needed)</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> {</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keyword">struct </span>ip6_reassdata *r, *oldest;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  </div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="comment">/* Free datagrams until being allowed to enqueue 'pbufs_needed' pbufs,</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> * but don't free the current datagram! */</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">do</span> {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  r = oldest = reassdatagrams;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">while</span> (r != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">if</span> (r != ipr) {</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">if</span> (r->timer <= oldest->timer) {</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">/* older than the previous oldest */</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  oldest = r;</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  }</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  }</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  r = r->next;</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  }</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">if</span> (oldest == ipr) {</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="comment">/* nothing to free, ipr is the only element on the list */</span></div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (oldest != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  ip6_reass_free_complete_datagram(oldest);</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  }</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  } <span class="keywordflow">while</span> (((ip6_reass_pbufcount + pbufs_needed) > <a class="code" href="../../d2/d78/lwipopts_8h.html#a29084a46d7d4be30e8029d356bca0394">IP_REASS_MAX_PBUFS</a>) && (reassdatagrams != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>));</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span> }</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="preprocessor">#endif </span><span class="comment">/* IP_REASS_FREE_OLDEST */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  </div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="keyword">struct </span><a class="code" href="../../d9/db8/structpbuf.html">pbuf</a> *</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> ip6_reass(<span class="keyword">struct</span> <a class="code" href="../../d9/db8/structpbuf.html">pbuf</a> *p)</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> {</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keyword">struct </span>ip6_reassdata *ipr, *ipr_prev;</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keyword">struct </span>ip6_reass_helper *iprh, *iprh_tmp, *iprh_prev=<a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keyword">struct </span><a class="code" href="../../db/d44/structip6__frag__hdr.html">ip6_frag_hdr</a> *frag_hdr;</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> offset, len;</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> clen;</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> valid = 1;</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keyword">struct </span><a class="code" href="../../d9/db8/structpbuf.html">pbuf</a> *q;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  </div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.recv);</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  </div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">if</span> ((<span class="keyword">const</span> <span class="keywordtype">void</span>*)ip6_current_header() != ((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>) - <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>) {</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="comment">/* ip6_frag_hdr must be in the first pbuf, not chained */</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.proterr);</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.drop);</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">goto</span> nullreturn;</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  }</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  </div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  frag_hdr = (<span class="keyword">struct </span><a class="code" href="../../db/d44/structip6__frag__hdr.html">ip6_frag_hdr</a> *) p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  </div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  clen = <a class="code" href="../../d0/d35/pbuf_8h.html#a5df7ac5ae59012fe9aeddba375a72190">pbuf_clen</a>(p);</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  </div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  offset = <a class="code" href="../../d4/da4/def_8h.html#ac642bf6057869696d7807564d8309ffc">lwip_ntohs</a>(frag_hdr->_fragment_offset);</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  </div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">/* Calculate fragment length from IPv6 payload length.</span></div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="comment"> * Adjust for headers before Fragment Header.</span></div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="comment"> * And finally adjust by Fragment Header length. */</span></div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  len = <a class="code" href="../../d4/da4/def_8h.html#ac642bf6057869696d7807564d8309ffc">lwip_ntohs</a>(ip6_current_header()->_plen);</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  len -= (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a>)(((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> - (<span class="keyword">const</span> <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)ip6_current_header()) - <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>);</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  len -= <a class="code" href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a>;</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  </div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">/* Look for the datagram the fragment belongs to in the current datagram queue,</span></div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="comment"> * remembering the previous in the queue for later dequeueing. */</span></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordflow">for</span> (ipr = reassdatagrams, ipr_prev = <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>; ipr != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>; ipr = ipr->next) {</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="comment">/* Check if the incoming fragment matches the one currently present</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="comment"> in the reassembly buffer. If so, we proceed with copying the</span></div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="comment"> fragment into the buffer. */</span></div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">if</span> ((frag_hdr->_identification == ipr->identification) &&</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  ip6_addr_cmp(ip6_current_src_addr(), &(IPV6_FRAG_HDRREF(ipr->iphdr)->src)) &&</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  ip6_addr_cmp(ip6_current_dest_addr(), &(IPV6_FRAG_HDRREF(ipr->iphdr)->dest))) {</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.cachehit);</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  }</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  ipr_prev = ipr;</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  }</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  </div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordflow">if</span> (ipr == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">/* Enqueue a new datagram into the datagram queue */</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  ipr = (<span class="keyword">struct </span>ip6_reassdata *)<a class="code" href="../../df/dff/memp_8h.html#a2b00593d086313c267b54a976bf67aa5">memp_malloc</a>(MEMP_IP6_REASSDATA);</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordflow">if</span> (ipr == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="preprocessor">#if IP_REASS_FREE_OLDEST</span></div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="comment">/* Make room and try again. */</span></div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  ip6_reass_remove_oldest_datagram(ipr, clen);</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  ipr = (<span class="keyword">struct </span>ip6_reassdata *)<a class="code" href="../../df/dff/memp_8h.html#a2b00593d086313c267b54a976bf67aa5">memp_malloc</a>(MEMP_IP6_REASSDATA);</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">if</span> (ipr != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="comment">/* re-search ipr_prev since it might have been removed */</span></div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">for</span> (ipr_prev = reassdatagrams; ipr_prev != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>; ipr_prev = ipr_prev->next) {</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">if</span> (ipr_prev->next == ipr) {</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  }</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  }</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  } <span class="keywordflow">else</span></div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="preprocessor">#endif </span><span class="comment">/* IP_REASS_FREE_OLDEST */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  {</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.memerr);</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.drop);</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordflow">goto</span> nullreturn;</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  }</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  }</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  </div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <a class="code" href="../../da/d66/string_8h.html#ace4b911463887af5e748326323e99a23">memset</a>(ipr, 0, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> ip6_reassdata));</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  ipr->timer = <a class="code" href="../../d2/d78/lwipopts_8h.html#ad41122bd0b5485a18a4415c8f953727b">IP_REASS_MAXAGE</a>;</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  </div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">/* enqueue the new structure to the front of the list */</span></div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  ipr->next = reassdatagrams;</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  reassdatagrams = ipr;</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  </div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">/* Use the current IPv6 header for src/dest address reference.</span></div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="comment"> * Eventually, we will replace it when we get the first fragment</span></div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="comment"> * (it might be this one, in any case, it is done later). */</span></div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="preprocessor">#if IPV6_FRAG_COPYHEADER</span></div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <a class="code" href="../../d2/d78/lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(&ipr->iphdr, ip6_current_header(), <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>);</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="preprocessor">#else </span><span class="comment">/* IPV6_FRAG_COPYHEADER */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="comment">/* need to use the none-const pointer here: */</span></div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  ipr->iphdr = <a class="code" href="../../da/d2f/ip_8h.html#ac944fb6564f181bc90bc7c2b8b00d94c">ip_data</a>.current_ip6_header;</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="preprocessor">#endif </span><span class="comment">/* IPV6_FRAG_COPYHEADER */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  </div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="comment">/* copy the fragmented packet id. */</span></div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  ipr->identification = frag_hdr->_identification;</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  </div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="comment">/* copy the nexth field */</span></div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  ipr->nexth = frag_hdr->_nexth;</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  }</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  </div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="comment">/* Check if we are allowed to enqueue more datagrams. */</span></div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">if</span> ((ip6_reass_pbufcount + clen) > <a class="code" href="../../d2/d78/lwipopts_8h.html#a29084a46d7d4be30e8029d356bca0394">IP_REASS_MAX_PBUFS</a>) {</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="preprocessor">#if IP_REASS_FREE_OLDEST</span></div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  ip6_reass_remove_oldest_datagram(ipr, clen);</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keywordflow">if</span> ((ip6_reass_pbufcount + clen) <= <a class="code" href="../../d2/d78/lwipopts_8h.html#a29084a46d7d4be30e8029d356bca0394">IP_REASS_MAX_PBUFS</a>) {</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">/* re-search ipr_prev since it might have been removed */</span></div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordflow">for</span> (ipr_prev = reassdatagrams; ipr_prev != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>; ipr_prev = ipr_prev->next) {</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">if</span> (ipr_prev->next == ipr) {</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  }</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  }</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  } <span class="keywordflow">else</span></div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="preprocessor">#endif </span><span class="comment">/* IP_REASS_FREE_OLDEST */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  {</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="comment">/* @todo: send ICMPv6 time exceeded here? */</span></div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="comment">/* drop this pbuf */</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.memerr);</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.drop);</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">goto</span> nullreturn;</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  }</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  }</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  </div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="comment">/* Overwrite Fragment Header with our own helper struct. */</span></div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> <span class="preprocessor">#if IPV6_FRAG_COPYHEADER</span></div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keywordflow">if</span> (IPV6_FRAG_REQROOM > 0) {</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="comment">/* Make room for struct ip6_reass_helper (only required if sizeof(void*) > 4).</span></div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="comment"> This cannot fail since we already checked when receiving this fragment. */</span></div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> hdrerr = <a class="code" href="../../d0/d35/pbuf_8h.html#a27480c41c34021d4417691d327163626">pbuf_header_force</a>(p, IPV6_FRAG_REQROOM);</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga70624a5deb8b9199406372a7f3603ecf">LWIP_UNUSED_ARG</a>(hdrerr); <span class="comment">/* in case of LWIP_NOASSERT */</span></div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"no room for struct ip6_reass_helper"</span>, hdrerr == 0);</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  }</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> <span class="preprocessor">#else </span><span class="comment">/* IPV6_FRAG_COPYHEADER */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"sizeof(struct ip6_reass_helper) <= IP6_FRAG_HLEN, set IPV6_FRAG_COPYHEADER to 1"</span>,</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keyword">sizeof</span>(<span class="keyword">struct</span> ip6_reass_helper) <= <a class="code" href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a>);</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span> <span class="preprocessor">#endif </span><span class="comment">/* IPV6_FRAG_COPYHEADER */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  iprh = (<span class="keyword">struct </span>ip6_reass_helper *)p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  iprh->next_pbuf = <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  iprh->start = (offset & <a class="code" href="../../de/d63/prot_2ip6_8h.html#a4ada75ee94d08af1a0d2656e6d14d7d9">IP6_FRAG_OFFSET_MASK</a>);</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  iprh->end = (offset & <a class="code" href="../../de/d63/prot_2ip6_8h.html#a4ada75ee94d08af1a0d2656e6d14d7d9">IP6_FRAG_OFFSET_MASK</a>) + len;</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  </div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">/* find the right place to insert this pbuf */</span></div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="comment">/* Iterate through until we either get to the end of the list (append),</span></div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="comment"> * or we find on with a larger offset (insert). */</span></div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="keywordflow">for</span> (q = ipr->p; q != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;) {</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  iprh_tmp = (<span class="keyword">struct </span>ip6_reass_helper*)q-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  if (iprh->start < iprh_tmp->start) {</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="preprocessor">#if IP_REASS_CHECK_OVERLAP</span></div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">if</span> (iprh->end > iprh_tmp->start) {</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="comment">/* fragment overlaps with following, throw away */</span></div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.proterr);</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.drop);</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keywordflow">goto</span> nullreturn;</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  }</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">if</span> (iprh_prev != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">if</span> (iprh->start < iprh_prev->end) {</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="comment">/* fragment overlaps with previous, throw away */</span></div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.proterr);</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.drop);</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">goto</span> nullreturn;</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  }</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  }</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> <span class="preprocessor">#endif </span><span class="comment">/* IP_REASS_CHECK_OVERLAP */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="comment">/* the new pbuf should be inserted before this */</span></div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  iprh->next_pbuf = q;</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keywordflow">if</span> (iprh_prev != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="comment">/* not the fragment with the lowest offset */</span></div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  iprh_prev->next_pbuf = p;</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="comment">/* fragment with the lowest offset */</span></div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  ipr->p = p;</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  }</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (iprh->start == iprh_tmp->start) {</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="comment">/* received the same datagram twice: no need to keep the datagram */</span></div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.drop);</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordflow">goto</span> nullreturn;</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="preprocessor">#if IP_REASS_CHECK_OVERLAP</span></div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (iprh->start < iprh_tmp->end) {</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="comment">/* overlap: no need to keep the new datagram */</span></div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.proterr);</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.drop);</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordflow">goto</span> nullreturn;</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> <span class="preprocessor">#endif </span><span class="comment">/* IP_REASS_CHECK_OVERLAP */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="comment">/* Check if the fragments received so far have no gaps. */</span></div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">if</span> (iprh_prev != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordflow">if</span> (iprh_prev->end != iprh_tmp->start) {</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="comment">/* There is a fragment missing between the current</span></div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span> <span class="comment"> * and the previous fragment */</span></div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  valid = 0;</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  }</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  }</div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  }</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  q = iprh_tmp->next_pbuf;</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  iprh_prev = iprh_tmp;</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  }</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  </div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="comment">/* If q is NULL, then we made it to the end of the list. Determine what to do now */</span></div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">if</span> (q == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="keywordflow">if</span> (iprh_prev != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="comment">/* this is (for now), the fragment with the highest offset:</span></div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="comment"> * chain it to the last fragment */</span></div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="preprocessor">#if IP_REASS_CHECK_OVERLAP</span></div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"check fragments don't overlap"</span>, iprh_prev->end <= iprh->start);</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="preprocessor">#endif </span><span class="comment">/* IP_REASS_CHECK_OVERLAP */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  iprh_prev->next_pbuf = p;</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keywordflow">if</span> (iprh_prev->end != iprh->start) {</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  valid = 0;</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  }</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span> <span class="preprocessor">#if IP_REASS_CHECK_OVERLAP</span></div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"no previous fragment, this must be the first fragment!"</span>,</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  ipr->p == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span> <span class="preprocessor">#endif </span><span class="comment">/* IP_REASS_CHECK_OVERLAP */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="comment">/* this is the first fragment we ever received for this ip datagram */</span></div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  ipr->p = p;</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  }</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  }</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  </div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="comment">/* Track the current number of pbufs current 'in-flight', in order to limit</span></div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span> <span class="comment"> the number of fragments that may be enqueued at any one time */</span></div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  ip6_reass_pbufcount += clen;</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  </div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="comment">/* Remember IPv6 header if this is the first fragment. */</span></div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordflow">if</span> (iprh->start == 0) {</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> <span class="preprocessor">#if IPV6_FRAG_COPYHEADER</span></div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keywordflow">if</span> (iprh->next_pbuf != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <a class="code" href="../../d2/d78/lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(&ipr->iphdr, ip6_current_header(), <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>);</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  }</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> <span class="preprocessor">#else </span><span class="comment">/* IPV6_FRAG_COPYHEADER */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="comment">/* need to use the none-const pointer here: */</span></div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  ipr->iphdr = <a class="code" href="../../da/d2f/ip_8h.html#ac944fb6564f181bc90bc7c2b8b00d94c">ip_data</a>.current_ip6_header;</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="preprocessor">#endif </span><span class="comment">/* IPV6_FRAG_COPYHEADER */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  }</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  </div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="comment">/* If this is the last fragment, calculate total packet length. */</span></div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordflow">if</span> ((offset & <a class="code" href="../../de/d63/prot_2ip6_8h.html#a4e60dc945c0061d3d4dc4a84132a506b">IP6_FRAG_MORE_FLAG</a>) == 0) {</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  ipr->datagram_len = iprh->end;</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  }</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  </div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="comment">/* Additional validity tests: we have received first and last fragment. */</span></div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  iprh_tmp = (<span class="keyword">struct </span>ip6_reass_helper*)ipr->p->payload;</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  if (iprh_tmp->start != 0) {</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  valid = 0;</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  }</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keywordflow">if</span> (ipr->datagram_len == 0) {</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  valid = 0;</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  }</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  </div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="comment">/* Final validity test: no gaps between current and last fragment. */</span></div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  iprh_prev = iprh;</div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  q = iprh->next_pbuf;</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="keywordflow">while</span> ((q != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) && valid) {</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  iprh = (<span class="keyword">struct </span>ip6_reass_helper*)q-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  if (iprh_prev->end != iprh->start) {</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  valid = 0;</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  }</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  iprh_prev = iprh;</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  q = iprh->next_pbuf;</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  }</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  </div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  <span class="keywordflow">if</span> (valid) {</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="comment">/* All fragments have been received */</span></div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keyword">struct </span><a class="code" href="../../d2/d9c/structip6__hdr.html">ip6_hdr</a>* iphdr_ptr;</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  </div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="comment">/* chain together the pbufs contained within the ip6_reassdata list. */</span></div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  iprh = (<span class="keyword">struct </span>ip6_reass_helper*) ipr->p->payload;</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  while (iprh != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keyword">struct </span><a class="code" href="../../d9/db8/structpbuf.html">pbuf</a>* next_pbuf = iprh->next_pbuf;</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keywordflow">if</span> (next_pbuf != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="comment">/* Save next helper struct (will be hidden in next step). */</span></div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  iprh_tmp = (<span class="keyword">struct </span>ip6_reass_helper*)next_pbuf-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  </div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <span class="comment">/* hide the fragment header for every succeeding fragment */</span></div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <a class="code" href="../../d0/d35/pbuf_8h.html#aaa17c1951cf2d207b6adfd3947d91f00">pbuf_header</a>(next_pbuf, -<a class="code" href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a>);</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span> <span class="preprocessor">#if IPV6_FRAG_COPYHEADER</span></div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keywordflow">if</span> (IPV6_FRAG_REQROOM > 0) {</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="comment">/* hide the extra bytes borrowed from ip6_hdr for struct ip6_reass_helper */</span></div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> hdrerr = <a class="code" href="../../d0/d35/pbuf_8h.html#aaa17c1951cf2d207b6adfd3947d91f00">pbuf_header</a>(next_pbuf, -(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a>)(IPV6_FRAG_REQROOM));</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga70624a5deb8b9199406372a7f3603ecf">LWIP_UNUSED_ARG</a>(hdrerr); <span class="comment">/* in case of LWIP_NOASSERT */</span></div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"no room for struct ip6_reass_helper"</span>, hdrerr == 0);</div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  }</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <a class="code" href="../../d7/d05/group__pbuf.html#ga82429084fe29015509c9b4a072707cd4">pbuf_cat</a>(ipr->p, next_pbuf);</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  }</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  iprh_tmp = <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  }</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  </div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  iprh = iprh_tmp;</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  }</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  </div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="preprocessor">#if IPV6_FRAG_COPYHEADER</span></div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="keywordflow">if</span> (IPV6_FRAG_REQROOM > 0) {</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="comment">/* get back room for struct ip6_reass_helper (only required if sizeof(void*) > 4) */</span></div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> hdrerr = <a class="code" href="../../d0/d35/pbuf_8h.html#aaa17c1951cf2d207b6adfd3947d91f00">pbuf_header</a>(ipr->p, -(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a>)(IPV6_FRAG_REQROOM));</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga70624a5deb8b9199406372a7f3603ecf">LWIP_UNUSED_ARG</a>(hdrerr); <span class="comment">/* in case of LWIP_NOASSERT */</span></div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"no room for struct ip6_reass_helper"</span>, hdrerr == 0);</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  }</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  iphdr_ptr = (<span class="keyword">struct </span><a class="code" href="../../d2/d9c/structip6__hdr.html">ip6_hdr</a>*)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)ipr->p->payload - <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>);</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <a class="code" href="../../d2/d78/lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(iphdr_ptr, &ipr->iphdr, <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>);</div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  iphdr_ptr = ipr->iphdr;</div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  </div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <span class="comment">/* Adjust datagram length by adding header lengths. */</span></div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  ipr->datagram_len += (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a>)(((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)ipr->p->payload - (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)iphdr_ptr)</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  + <a class="code" href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a></div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  - <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>);</div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  </div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="comment">/* Set payload length in ip header. */</span></div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  iphdr_ptr->_plen = <a class="code" href="../../d2/d6e/def_8c.html#ad637280639de4066392e6b5614fa3e56">lwip_htons</a>(ipr->datagram_len);</div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  </div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="comment">/* Get the first pbuf. */</span></div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  p = ipr->p;</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  </div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="comment">/* Restore Fragment Header in first pbuf. Mark as "single fragment"</span></div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span> <span class="comment"> * packet. Restore nexth. */</span></div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  frag_hdr = (<span class="keyword">struct </span><a class="code" href="../../db/d44/structip6__frag__hdr.html">ip6_frag_hdr</a> *) p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  frag_hdr->_nexth = ipr->nexth;</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  frag_hdr->reserved = 0;</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  frag_hdr->_fragment_offset = 0;</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  frag_hdr->_identification = 0;</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  </div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="comment">/* release the sources allocate for the fragment queue entry */</span></div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  if (reassdatagrams == ipr) {</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="comment">/* it was the first in the list */</span></div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  reassdatagrams = ipr->next;</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="comment">/* it wasn't the first, so it must have a valid 'prev' */</span></div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"sanity check linked list"</span>, ipr_prev != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  ipr_prev->next = ipr->next;</div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  }</div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  <a class="code" href="../../df/dff/memp_8h.html#aecd94926b7c2a0e23ae195f4ae97581f">memp_free</a>(MEMP_IP6_REASSDATA, ipr);</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  </div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="comment">/* adjust the number of pbufs currently queued for reassembly. */</span></div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  ip6_reass_pbufcount -= <a class="code" href="../../d0/d35/pbuf_8h.html#a5df7ac5ae59012fe9aeddba375a72190">pbuf_clen</a>(p);</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  </div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  <span class="comment">/* Move pbuf back to IPv6 header.</span></div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span> <span class="comment"> This cannot fail since we already checked when receiving this fragment. */</span></div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d0/d35/pbuf_8h.html#a27480c41c34021d4417691d327163626">pbuf_header_force</a>(p, (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a>)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> - (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)iphdr_ptr))) {</div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"ip6_reass: moving p->payload to ip6 header failed\n"</span>, 0);</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <a class="code" href="../../d7/d05/group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  <span class="keywordflow">return</span> <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  }</div>
<div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  </div>
<div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  <span class="comment">/* Return the pbuf chain */</span></div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <span class="keywordflow">return</span> p;</div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  }</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  <span class="comment">/* the datagram is not (yet?) reassembled completely */</span></div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="keywordflow">return</span> <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  </div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> nullreturn:</div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <a class="code" href="../../d7/d05/group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  <span class="keywordflow">return</span> <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span> }</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  </div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6 && LWIP_IPV6_REASS */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  </div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span> <span class="preprocessor">#if LWIP_IPV6 && LWIP_IPV6_FRAG</span></div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  </div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span> <span class="preprocessor">#if !LWIP_NETIF_TX_SINGLE_PBUF</span></div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  </div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span> <span class="keyword">static</span> <span class="keyword">struct </span>pbuf_custom_ref*</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span> ip6_frag_alloc_pbuf_custom_ref(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span> {</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="keywordflow">return</span> (<span class="keyword">struct</span> pbuf_custom_ref*)<a class="code" href="../../df/dff/memp_8h.html#a2b00593d086313c267b54a976bf67aa5">memp_malloc</a>(MEMP_FRAG_PBUF);</div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span> }</div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  </div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span> ip6_frag_free_pbuf_custom_ref(<span class="keyword">struct</span> pbuf_custom_ref* p)</div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span> {</div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"p != NULL"</span>, p != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <a class="code" href="../../df/dff/memp_8h.html#aecd94926b7c2a0e23ae195f4ae97581f">memp_free</a>(MEMP_FRAG_PBUF, p);</div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span> }</div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  </div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span> ip6_frag_free_pbuf_custom(<span class="keyword">struct</span> <a class="code" href="../../d9/db8/structpbuf.html">pbuf</a> *p)</div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span> {</div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="keyword">struct </span>pbuf_custom_ref *pcr = (<span class="keyword">struct </span>pbuf_custom_ref*)p;</div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"pcr != NULL"</span>, pcr != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"pcr == p"</span>, (<span class="keywordtype">void</span>*)pcr == (<span class="keywordtype">void</span>*)p);</div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="keywordflow">if</span> (pcr->original != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  <a class="code" href="../../d7/d05/group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(pcr->original);</div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  }</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  ip6_frag_free_pbuf_custom_ref(pcr);</div>
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span> }</div>
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span> <span class="preprocessor">#endif </span><span class="comment">/* !LWIP_NETIF_TX_SINGLE_PBUF */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  </div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span> <a class="code" href="../../d2/de7/group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a></div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span> ip6_frag(<span class="keyword">struct</span> <a class="code" href="../../d9/db8/structpbuf.html">pbuf</a> *p, <span class="keyword">struct</span> <a class="code" href="../../d2/dd6/structnetif.html">netif</a> *<a class="code" href="../../d2/dd6/structnetif.html">netif</a>, <span class="keyword">const</span> ip6_addr_t *dest)</div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span> {</div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="keyword">struct </span><a class="code" href="../../d2/d9c/structip6__hdr.html">ip6_hdr</a> *original_ip6hdr;</div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keyword">struct </span><a class="code" href="../../d2/d9c/structip6__hdr.html">ip6_hdr</a> *ip6hdr;</div>
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="keyword">struct </span><a class="code" href="../../db/d44/structip6__frag__hdr.html">ip6_frag_hdr</a> *frag_hdr;</div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  <span class="keyword">struct </span><a class="code" href="../../d9/db8/structpbuf.html">pbuf</a> *rambuf;</div>
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="preprocessor">#if !LWIP_NETIF_TX_SINGLE_PBUF</span></div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  <span class="keyword">struct </span><a class="code" href="../../d9/db8/structpbuf.html">pbuf</a> *newpbuf;</div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> newpbuflen = 0;</div>
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> left_to_copy;</div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="keyword">static</span> <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> identification;</div>
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> nfb;</div>
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> left, cop;</div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> mtu;</div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> fragment_offset = 0;</div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> last;</div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> poff = <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>;</div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  </div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  identification++;</div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  </div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  original_ip6hdr = (<span class="keyword">struct </span><a class="code" href="../../d2/d9c/structip6__hdr.html">ip6_hdr</a> *)p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  </div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  mtu = nd6_get_destination_mtu(dest, <a class="code" href="../../d2/dd6/structnetif.html">netif</a>);</div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  </div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <span class="comment">/* @todo we assume there are no options in the unfragmentable part (IPv6 header). */</span></div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  left = p-><a class="code" href="../../d9/db8/structpbuf.html#a5259e7ec29bab9c0999b64f2e86b411f">tot_len</a> - <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>;</div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  </div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  nfb = (mtu - (<a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a> + <a class="code" href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a>)) & <a class="code" href="../../de/d63/prot_2ip6_8h.html#a4ada75ee94d08af1a0d2656e6d14d7d9">IP6_FRAG_OFFSET_MASK</a>;</div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  </div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  <span class="keywordflow">while</span> (left) {</div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  last = (left <= nfb);</div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  </div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="comment">/* Fill this fragment */</span></div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  cop = last ? left : nfb;</div>
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  </div>
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span> <span class="preprocessor">#if LWIP_NETIF_TX_SINGLE_PBUF</span></div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  rambuf = <a class="code" href="../../d7/d05/group__pbuf.html#gacfcb0a2af918658ba0afe36499c65f47">pbuf_alloc</a>(<a class="code" href="../../d7/d05/group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfafcc1e506061ba69dfa142eb6b3da5f13">PBUF_IP</a>, cop + <a class="code" href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a>, <a class="code" href="../../d7/d05/group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab">PBUF_RAM</a>);</div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  <span class="keywordflow">if</span> (rambuf == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.memerr);</div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  <span class="keywordflow">return</span> <a class="code" href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05">ERR_MEM</a>;</div>
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  }</div>
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"this needs a pbuf in one piece!"</span>,</div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  (rambuf-><a class="code" href="../../d9/db8/structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> == rambuf-><a class="code" href="../../d9/db8/structpbuf.html#a5259e7ec29bab9c0999b64f2e86b411f">tot_len</a>) && (rambuf-><a class="code" href="../../d9/db8/structpbuf.html#a5e5763c94fd18d78937b0b58ce7df341">next</a> == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>));</div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  poff += <a class="code" href="../../d7/d05/group__pbuf.html#gac2f1f58fd36042e82af46f5015720899">pbuf_copy_partial</a>(p, (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)rambuf-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <a class="code" href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a>, cop, poff);</div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  <span class="comment">/* make room for the IP header */</span></div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d0/d35/pbuf_8h.html#aaa17c1951cf2d207b6adfd3947d91f00">pbuf_header</a>(rambuf, <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>)) {</div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  <a class="code" href="../../d7/d05/group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(rambuf);</div>
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.memerr);</div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <span class="keywordflow">return</span> <a class="code" href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05">ERR_MEM</a>;</div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  }</div>
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  <span class="comment">/* fill in the IP header */</span></div>
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  <a class="code" href="../../d2/d78/lwipopts_8h.html#a8c6e3c1e4f74acb16376188dbf8909ec">SMEMCPY</a>(rambuf-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>, original_ip6hdr, <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>);</div>
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  ip6hdr = (<span class="keyword">struct </span><a class="code" href="../../d2/d9c/structip6__hdr.html">ip6_hdr</a> *)rambuf-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  frag_hdr = (<span class="keyword">struct</span> <a class="code" href="../../db/d44/structip6__frag__hdr.html">ip6_frag_hdr</a> *)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)rambuf-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>);</div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  <span class="comment">/* When not using a static buffer, create a chain of pbufs.</span></div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span> <span class="comment"> * The first will be a PBUF_RAM holding the link, IPv6, and Fragment header.</span></div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span> <span class="comment"> * The rest will be PBUF_REFs mirroring the pbuf chain to be fragged,</span></div>
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span> <span class="comment"> * but limited to the size of an mtu.</span></div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  rambuf = <a class="code" href="../../d7/d05/group__pbuf.html#gacfcb0a2af918658ba0afe36499c65f47">pbuf_alloc</a>(<a class="code" href="../../d7/d05/group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfab4de441e737330558b609a990cd17346">PBUF_LINK</a>, <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a> + <a class="code" href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a>, <a class="code" href="../../d7/d05/group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab">PBUF_RAM</a>);</div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  <span class="keywordflow">if</span> (rambuf == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.memerr);</div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  <span class="keywordflow">return</span> <a class="code" href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05">ERR_MEM</a>;</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  }</div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"this needs a pbuf in one piece!"</span>,</div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  (p-><a class="code" href="../../d9/db8/structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> >= (<a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>)));</div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  <a class="code" href="../../d2/d78/lwipopts_8h.html#a8c6e3c1e4f74acb16376188dbf8909ec">SMEMCPY</a>(rambuf-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>, original_ip6hdr, <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>);</div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  ip6hdr = (<span class="keyword">struct </span><a class="code" href="../../d2/d9c/structip6__hdr.html">ip6_hdr</a> *)rambuf-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  frag_hdr = (<span class="keyword">struct</span> <a class="code" href="../../db/d44/structip6__frag__hdr.html">ip6_frag_hdr</a> *)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)rambuf-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <a class="code" href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>);</div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  </div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  <span class="comment">/* Can just adjust p directly for needed offset. */</span></div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> = (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + poff;</div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  p-><a class="code" href="../../d9/db8/structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> -= poff;</div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  p-><a class="code" href="../../d9/db8/structpbuf.html#a5259e7ec29bab9c0999b64f2e86b411f">tot_len</a> -= poff;</div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  </div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  left_to_copy = cop;</div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  while (left_to_copy) {</div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <span class="keyword">struct </span>pbuf_custom_ref *pcr;</div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  newpbuflen = (left_to_copy < p-><a class="code" href="../../d9/db8/structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a>) ? left_to_copy : p-><a class="code" href="../../d9/db8/structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a>;</div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="comment">/* Is this pbuf already empty? */</span></div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  if (!newpbuflen) {</div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  p = p-><a class="code" href="../../d9/db8/structpbuf.html#a5e5763c94fd18d78937b0b58ce7df341">next</a>;</div>
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  }</div>
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  pcr = ip6_frag_alloc_pbuf_custom_ref();</div>
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keywordflow">if</span> (pcr == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <a class="code" href="../../d7/d05/group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(rambuf);</div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.memerr);</div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keywordflow">return</span> <a class="code" href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05">ERR_MEM</a>;</div>
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  }</div>
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  <span class="comment">/* Mirror this pbuf, although we might not need all of it. */</span></div>
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  newpbuf = pbuf_alloced_custom(<a class="code" href="../../d7/d05/group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfa21116654fbab6d5a4dfeb87a1bb8f0ba">PBUF_RAW</a>, newpbuflen, <a class="code" href="../../d7/d05/group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac9b6ba960fdea6f2e8f35c8313b77e4e">PBUF_REF</a>, &pcr->pc, p-><a class="code" href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>, newpbuflen);</div>
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  <span class="keywordflow">if</span> (newpbuf == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  ip6_frag_free_pbuf_custom_ref(pcr);</div>
<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  <a class="code" href="../../d7/d05/group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(rambuf);</div>
<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.memerr);</div>
<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  <span class="keywordflow">return</span> <a class="code" href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05">ERR_MEM</a>;</div>
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  }</div>
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <a class="code" href="../../d7/d05/group__pbuf.html#ga77f6bbd69e45e542014d9c547c7da74e">pbuf_ref</a>(p);</div>
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  pcr->original = p;</div>
<div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  pcr->pc.custom_free_function = ip6_frag_free_pbuf_custom;</div>
<div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  </div>
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  <span class="comment">/* Add it to end of rambuf's chain, but using pbuf_cat, not pbuf_chain</span></div>
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span> <span class="comment"> * so that it is removed when pbuf_dechain is later called on rambuf.</span></div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  <a class="code" href="../../d7/d05/group__pbuf.html#ga82429084fe29015509c9b4a072707cd4">pbuf_cat</a>(rambuf, newpbuf);</div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  left_to_copy -= newpbuflen;</div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  <span class="keywordflow">if</span> (left_to_copy) {</div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  p = p-><a class="code" href="../../d9/db8/structpbuf.html#a5e5763c94fd18d78937b0b58ce7df341">next</a>;</div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  }</div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  }</div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  poff = newpbuflen;</div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_NETIF_TX_SINGLE_PBUF */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  </div>
<div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  <span class="comment">/* Set headers */</span></div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  frag_hdr->_nexth = original_ip6hdr->_nexth;</div>
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  frag_hdr->reserved = 0;</div>
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  frag_hdr->_fragment_offset = <a class="code" href="../../d2/d6e/def_8c.html#ad637280639de4066392e6b5614fa3e56">lwip_htons</a>((fragment_offset & <a class="code" href="../../de/d63/prot_2ip6_8h.html#a4ada75ee94d08af1a0d2656e6d14d7d9">IP6_FRAG_OFFSET_MASK</a>) | (last ? 0 : <a class="code" href="../../de/d63/prot_2ip6_8h.html#a4e60dc945c0061d3d4dc4a84132a506b">IP6_FRAG_MORE_FLAG</a>));</div>
<div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  frag_hdr->_identification = <a class="code" href="../../d2/d6e/def_8c.html#a14f94347a5b9b9e3602705b75b7ae524">lwip_htonl</a>(identification);</div>
<div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  </div>
<div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  <a class="code" href="../../de/d63/prot_2ip6_8h.html#a85d62e6278b0bed9e3b88df777be612c">IP6H_NEXTH_SET</a>(ip6hdr, <a class="code" href="../../de/d63/prot_2ip6_8h.html#a1a72bdc1494ea84cbf16424e9aedcd79">IP6_NEXTH_FRAGMENT</a>);</div>
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  <a class="code" href="../../de/d63/prot_2ip6_8h.html#a2d727ccfecc56fb1e35ea4f7249f399b">IP6H_PLEN_SET</a>(ip6hdr, cop + <a class="code" href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a>);</div>
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  </div>
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="comment">/* No need for separate header pbuf - we allowed room for it in rambuf</span></div>
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span> <span class="comment"> * when allocated.</span></div>
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  <a class="code" href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a>(ip6_frag.xmit);</div>
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  <a class="code" href="../../d2/dd6/structnetif.html">netif</a>->output_ip6(<a class="code" href="../../d2/dd6/structnetif.html">netif</a>, rambuf, dest);</div>
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  </div>
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <span class="comment">/* Unfortunately we can't reuse rambuf - the hardware may still be</span></div>
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span> <span class="comment"> * using the buffer. Instead we free it (and the ensuing chain) and</span></div>
<div class="line"><a name="l00793"></a><span class="lineno"> 793</span> <span class="comment"> * recreate it next time round the loop. If we're lucky the hardware</span></div>
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span> <span class="comment"> * will have already sent the packet, the free will really free, and</span></div>
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span> <span class="comment"> * there will be zero memory penalty.</span></div>
<div class="line"><a name="l00796"></a><span class="lineno"> 796</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00797"></a><span class="lineno"> 797</span>  </div>
<div class="line"><a name="l00798"></a><span class="lineno"> 798</span>  <a class="code" href="../../d7/d05/group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(rambuf);</div>
<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  left -= cop;</div>
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  fragment_offset += cop;</div>
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  }</div>
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="keywordflow">return</span> <a class="code" href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>;</div>
<div class="line"><a name="l00803"></a><span class="lineno"> 803</span> }</div>
<div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  </div>
<div class="line"><a name="l00805"></a><span class="lineno"> 805</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6 && LWIP_IPV6_FRAG */</span><span class="preprocessor"></span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="adef_8h_html_ac642bf6057869696d7807564d8309ffc"><div class="ttname"><a href="../../d4/da4/def_8h.html#ac642bf6057869696d7807564d8309ffc">lwip_ntohs</a></div><div class="ttdeci">#define lwip_ntohs(x)</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/da4/def_8h_source.html#l00076">def.h:76</a></div></div>
<div class="ttc" id="aopt_8h_html"><div class="ttname"><a href="../../dc/dba/opt_8h.html">opt.h</a></div></div>
<div class="ttc" id="astructpbuf_html_a6f82449625e36e294f5d210268c0703f"><div class="ttname"><a href="../../d9/db8/structpbuf.html#a6f82449625e36e294f5d210268c0703f">pbuf::len</a></div><div class="ttdeci">u16_t len</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d35/pbuf_8h_source.html#l00159">pbuf.h:159</a></div></div>
<div class="ttc" id="aprot_2ip6_8h_html_a2d727ccfecc56fb1e35ea4f7249f399b"><div class="ttname"><a href="../../de/d63/prot_2ip6_8h.html#a2d727ccfecc56fb1e35ea4f7249f399b">IP6H_PLEN_SET</a></div><div class="ttdeci">#define IP6H_PLEN_SET(hdr, plen)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d63/prot_2ip6_8h_source.html#l00161">ip6.h:161</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ggaee1baa59bb2f85ba575b5a8619ac1ebfab4de441e737330558b609a990cd17346"><div class="ttname"><a href="../../d7/d05/group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfab4de441e737330558b609a990cd17346">PBUF_LINK</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d35/pbuf_8h_source.html#l00085">pbuf.h:85</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_gacf46f4df0ebab84edebcb69967fdf86b"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a></div><div class="ttdeci">int16_t s16_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00125">arch.h:125</a></div></div>
<div class="ttc" id="and6_8h_html"><div class="ttname"><a href="../../d9/d56/nd6_8h.html">nd6.h</a></div></div>
<div class="ttc" id="adebug_8h_html_a94ad086267808462beae2b38f91996ed"><div class="ttname"><a href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a></div><div class="ttdeci">#define LWIP_ASSERT(message, assertion)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d16/debug_8h_source.html#l00116">debug.h:116</a></div></div>
<div class="ttc" id="apbuf_8h_html"><div class="ttname"><a href="../../d0/d35/pbuf_8h.html">pbuf.h</a></div></div>
<div class="ttc" id="aprot_2ip6_8h_html_aacda00cc76d9e7f9f3197de3b27089ea"><div class="ttname"><a href="../../de/d63/prot_2ip6_8h.html#aacda00cc76d9e7f9f3197de3b27089ea">IP6_FRAG_HLEN</a></div><div class="ttdeci">#define IP6_FRAG_HLEN</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d63/prot_2ip6_8h_source.html#l00130">ip6.h:130</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ggaee1baa59bb2f85ba575b5a8619ac1ebfa21116654fbab6d5a4dfeb87a1bb8f0ba"><div class="ttname"><a href="../../d7/d05/group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfa21116654fbab6d5a4dfeb87a1bb8f0ba">PBUF_RAW</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d35/pbuf_8h_source.html#l00094">pbuf.h:94</a></div></div>
<div class="ttc" id="aip6__frag_8h_html"><div class="ttname"><a href="../../d9/d74/ip6__frag_8h.html">ip6_frag.h</a></div></div>
<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="acc_8h_html_aab0b988124e37a978d9a88e7c1c778e0"><div class="ttname"><a href="../../dc/df0/cc_8h.html#aab0b988124e37a978d9a88e7c1c778e0">PACK_STRUCT_FIELD</a></div><div class="ttdeci">#define PACK_STRUCT_FIELD(x)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/df0/cc_8h_source.html#l00006">cc.h:6</a></div></div>
<div class="ttc" id="astring_8h_html"><div class="ttname"><a href="../../da/d66/string_8h.html">string.h</a></div></div>
<div class="ttc" id="acc_8h_html_a9ebc500530d0d9e6cd0b81969f48bbc8"><div class="ttname"><a href="../../dc/df0/cc_8h.html#a9ebc500530d0d9e6cd0b81969f48bbc8">PACK_STRUCT_STRUCT</a></div><div class="ttdeci">#define PACK_STRUCT_STRUCT</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/df0/cc_8h_source.html#l00007">cc.h:7</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ggaee1baa59bb2f85ba575b5a8619ac1ebfafcc1e506061ba69dfa142eb6b3da5f13"><div class="ttname"><a href="../../d7/d05/group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfafcc1e506061ba69dfa142eb6b3da5f13">PBUF_IP</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d35/pbuf_8h_source.html#l00080">pbuf.h:80</a></div></div>
<div class="ttc" id="astructpbuf_html_a5259e7ec29bab9c0999b64f2e86b411f"><div class="ttname"><a href="../../d9/db8/structpbuf.html#a5259e7ec29bab9c0999b64f2e86b411f">pbuf::tot_len</a></div><div class="ttdeci">u16_t tot_len</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d35/pbuf_8h_source.html#l00156">pbuf.h:156</a></div></div>
<div class="ttc" id="astats_8h_html_ac74aa05083bf4034fe2cc1efd5fde36c"><div class="ttname"><a href="../../d9/d9b/stats_8h.html#ac74aa05083bf4034fe2cc1efd5fde36c">IP6_FRAG_STATS_INC</a></div><div class="ttdeci">#define IP6_FRAG_STATS_INC(x)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d9b/stats_8h_source.html#l00444">stats.h:444</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga4c14294869aceba3ef9d4c0c302d0f33"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a></div><div class="ttdeci">uint32_t u32_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00126">arch.h:126</a></div></div>
<div class="ttc" id="apbuf_8h_html_a5df7ac5ae59012fe9aeddba375a72190"><div class="ttname"><a href="../../d0/d35/pbuf_8h.html#a5df7ac5ae59012fe9aeddba375a72190">pbuf_clen</a></div><div class="ttdeci">u16_t pbuf_clen(const struct pbuf *p)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/df0/pbuf_8c_source.html#l00801">pbuf.c:801</a></div></div>
<div class="ttc" id="astructpbuf_html_a5e5763c94fd18d78937b0b58ce7df341"><div class="ttname"><a href="../../d9/db8/structpbuf.html#a5e5763c94fd18d78937b0b58ce7df341">pbuf::next</a></div><div class="ttdeci">struct pbuf * next</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d35/pbuf_8h_source.html#l00144">pbuf.h:144</a></div></div>
<div class="ttc" id="agroup__pbuf_html_gab0dd696fb4b6bc65e548944584f1738b"><div class="ttname"><a href="../../d7/d05/group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a></div><div class="ttdeci">u8_t pbuf_free(struct pbuf *p)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/df0/pbuf_8c_source.html#l00715">pbuf.c:715</a></div></div>
<div class="ttc" id="amemp_8h_html_a2b00593d086313c267b54a976bf67aa5"><div class="ttname"><a href="../../df/dff/memp_8h.html#a2b00593d086313c267b54a976bf67aa5">memp_malloc</a></div><div class="ttdeci">void * memp_malloc(memp_t type)</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d70/memp_8c_source.html#l00385">memp.c:385</a></div></div>
<div class="ttc" id="aip_8h_html_ac944fb6564f181bc90bc7c2b8b00d94c"><div class="ttname"><a href="../../da/d2f/ip_8h.html#ac944fb6564f181bc90bc7c2b8b00d94c">ip_data</a></div><div class="ttdeci">struct ip_globals ip_data</div></div>
<div class="ttc" id="aprot_2ip6_8h_html_a85d62e6278b0bed9e3b88df777be612c"><div class="ttname"><a href="../../de/d63/prot_2ip6_8h.html#a85d62e6278b0bed9e3b88df777be612c">IP6H_NEXTH_SET</a></div><div class="ttdeci">#define IP6H_NEXTH_SET(hdr, nexth)</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d63/prot_2ip6_8h_source.html#l00162">ip6.h:162</a></div></div>
<div class="ttc" id="amemp_8h_html_aecd94926b7c2a0e23ae195f4ae97581f"><div class="ttname"><a href="../../df/dff/memp_8h.html#aecd94926b7c2a0e23ae195f4ae97581f">memp_free</a></div><div class="ttdeci">void memp_free(memp_t type, void *mem)</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d70/memp_8c_source.html#l00469">memp.c:469</a></div></div>
<div class="ttc" id="astats_8h_html"><div class="ttname"><a href="../../d9/d9b/stats_8h.html">stats.h</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05"><div class="ttname"><a href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05">ERR_MEM</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d40/err_8h_source.html#l00065">err.h:65</a></div></div>
<div class="ttc" id="agroup__pbuf_html_gac2f1f58fd36042e82af46f5015720899"><div class="ttname"><a href="../../d7/d05/group__pbuf.html#gac2f1f58fd36042e82af46f5015720899">pbuf_copy_partial</a></div><div class="ttdeci">u16_t pbuf_copy_partial(const struct pbuf *p, void *dataptr, u16_t len, u16_t offset)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/df0/pbuf_8c_source.html#l01016">pbuf.c:1016</a></div></div>
<div class="ttc" id="aicmp6_8h_html"><div class="ttname"><a href="../../db/da0/icmp6_8h.html">icmp6.h</a></div></div>
<div class="ttc" id="agroup__pbuf_html_gacfcb0a2af918658ba0afe36499c65f47"><div class="ttname"><a href="../../d7/d05/group__pbuf.html#gacfcb0a2af918658ba0afe36499c65f47">pbuf_alloc</a></div><div class="ttdeci">struct pbuf * pbuf_alloc(pbuf_layer l, u16_t length, pbuf_type type)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/df0/pbuf_8c_source.html#l00248">pbuf.c:248</a></div></div>
<div class="ttc" id="alwipopts_8h_html_ad41122bd0b5485a18a4415c8f953727b"><div class="ttname"><a href="../../d2/d78/lwipopts_8h.html#ad41122bd0b5485a18a4415c8f953727b">IP_REASS_MAXAGE</a></div><div class="ttdeci">#define IP_REASS_MAXAGE</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d78/lwipopts_8h_source.html#l00119">lwipopts.h:119</a></div></div>
<div class="ttc" id="aprot_2ip6_8h_html_a4ada75ee94d08af1a0d2656e6d14d7d9"><div class="ttname"><a href="../../de/d63/prot_2ip6_8h.html#a4ada75ee94d08af1a0d2656e6d14d7d9">IP6_FRAG_OFFSET_MASK</a></div><div class="ttdeci">#define IP6_FRAG_OFFSET_MASK</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d63/prot_2ip6_8h_source.html#l00131">ip6.h:131</a></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="astructnetif_html"><div class="ttname"><a href="../../d2/dd6/structnetif.html">netif</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d69/netif_8h_source.html#l00233">netif.h:233</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga70624a5deb8b9199406372a7f3603ecf"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#ga70624a5deb8b9199406372a7f3603ecf">LWIP_UNUSED_ARG</a></div><div class="ttdeci">#define LWIP_UNUSED_ARG(x)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00315">arch.h:315</a></div></div>
<div class="ttc" id="adef_8c_html_a14f94347a5b9b9e3602705b75b7ae524"><div class="ttname"><a href="../../d2/d6e/def_8c.html#a14f94347a5b9b9e3602705b75b7ae524">lwip_htonl</a></div><div class="ttdeci">u32_t lwip_htonl(u32_t n)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d6e/def_8c_source.html#l00088">def.c:88</a></div></div>
<div class="ttc" id="adef_8c_html_ad637280639de4066392e6b5614fa3e56"><div class="ttname"><a href="../../d2/d6e/def_8c.html#ad637280639de4066392e6b5614fa3e56">lwip_htons</a></div><div class="ttdeci">u16_t lwip_htons(u16_t n)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d6e/def_8c_source.html#l00075">def.c:75</a></div></div>
<div class="ttc" id="aprot_2ip6_8h_html_a1a72bdc1494ea84cbf16424e9aedcd79"><div class="ttname"><a href="../../de/d63/prot_2ip6_8h.html#a1a72bdc1494ea84cbf16424e9aedcd79">IP6_NEXTH_FRAGMENT</a></div><div class="ttdeci">#define IP6_NEXTH_FRAGMENT</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d63/prot_2ip6_8h_source.html#l00069">ip6.h:69</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ga77f6bbd69e45e542014d9c547c7da74e"><div class="ttname"><a href="../../d7/d05/group__pbuf.html#ga77f6bbd69e45e542014d9c547c7da74e">pbuf_ref</a></div><div class="ttdeci">void pbuf_ref(struct pbuf *p)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/df0/pbuf_8c_source.html#l00821">pbuf.c:821</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ga82429084fe29015509c9b4a072707cd4"><div class="ttname"><a href="../../d7/d05/group__pbuf.html#ga82429084fe29015509c9b4a072707cd4">pbuf_cat</a></div><div class="ttdeci">void pbuf_cat(struct pbuf *head, struct pbuf *tail)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/df0/pbuf_8c_source.html#l00841">pbuf.c:841</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab"><div class="ttname"><a href="../../d7/d05/group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab">PBUF_RAM</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d35/pbuf_8h_source.html#l00108">pbuf.h:108</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb"><div class="ttname"><a href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d40/err_8h_source.html#l00063">err.h:63</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_gaf02d9da80fd66b4f986d2c53d7231ddb"><div class="ttname"><a href="../../d2/de7/group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a></div><div class="ttdeci">s8_t err_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d40/err_8h_source.html#l00057">err.h:57</a></div></div>
<div class="ttc" id="aip_8h_html"><div class="ttname"><a href="../../da/d2f/ip_8h.html">ip.h</a></div></div>
<div class="ttc" id="aprot_2ip6_8h_html_afb4c1dc527be76d8f27591dfb726c023"><div class="ttname"><a href="../../de/d63/prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a></div><div class="ttdeci">#define IP6_HLEN</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d63/prot_2ip6_8h_source.html#l00062">ip6.h:62</a></div></div>
<div class="ttc" id="alwipopts_8h_html_aa1dd57a66b6de8c0593e9e3e8d1411f6"><div class="ttname"><a href="../../d2/d78/lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a></div><div class="ttdeci">#define MEMCPY(dst, src, len)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d78/lwipopts_8h_source.html#l00043">lwipopts.h:43</a></div></div>
<div class="ttc" id="astring_8h_html_ace4b911463887af5e748326323e99a23"><div class="ttname"><a href="../../da/d66/string_8h.html#ace4b911463887af5e748326323e99a23">memset</a></div><div class="ttdeci">void * memset(void *dst, int c, size_t length)</div></div>
<div class="ttc" id="amemp_8h_html"><div class="ttname"><a href="../../df/dff/memp_8h.html">memp.h</a></div></div>
<div class="ttc" id="astructip6__frag__hdr_html"><div class="ttname"><a href="../../db/d44/structip6__frag__hdr.html">ip6_frag_hdr</a></div><div class="ttdef"><b>Definition:</b> <a href="../../de/d63/prot_2ip6_8h_source.html#l00137">ip6.h:137</a></div></div>
<div class="ttc" id="apbuf_8h_html_a27480c41c34021d4417691d327163626"><div class="ttname"><a href="../../d0/d35/pbuf_8h.html#a27480c41c34021d4417691d327163626">pbuf_header_force</a></div><div class="ttdeci">u8_t pbuf_header_force(struct pbuf *p, s16_t header_size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/df0/pbuf_8c_source.html#l00675">pbuf.c:675</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a29084a46d7d4be30e8029d356bca0394"><div class="ttname"><a href="../../d2/d78/lwipopts_8h.html#a29084a46d7d4be30e8029d356bca0394">IP_REASS_MAX_PBUFS</a></div><div class="ttdeci">#define IP_REASS_MAX_PBUFS</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d78/lwipopts_8h_source.html#l00121">lwipopts.h:121</a></div></div>
<div class="ttc" id="aprot_2icmp6_8h_html_ad06bbf4ee72635ece968db41cbe6869eaec493420d61c80a21981b1aa32befe1f"><div class="ttname"><a href="../../d8/d5d/prot_2icmp6_8h.html#ad06bbf4ee72635ece968db41cbe6869eaec493420d61c80a21981b1aa32befe1f">ICMP6_TE_FRAG</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d5d/prot_2icmp6_8h_source.html#l00120">icmp6.h:120</a></div></div>
<div class="ttc" id="aprot_2ip6_8h_html_a4e60dc945c0061d3d4dc4a84132a506b"><div class="ttname"><a href="../../de/d63/prot_2ip6_8h.html#a4e60dc945c0061d3d4dc4a84132a506b">IP6_FRAG_MORE_FLAG</a></div><div class="ttdeci">#define IP6_FRAG_MORE_FLAG</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d63/prot_2ip6_8h_source.html#l00132">ip6.h:132</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a8c6e3c1e4f74acb16376188dbf8909ec"><div class="ttname"><a href="../../d2/d78/lwipopts_8h.html#a8c6e3c1e4f74acb16376188dbf8909ec">SMEMCPY</a></div><div class="ttdeci">#define SMEMCPY(dst, src, len)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d78/lwipopts_8h_source.html#l00044">lwipopts.h:44</a></div></div>
<div class="ttc" id="astructip6__hdr_html"><div class="ttname"><a href="../../d2/d9c/structip6__hdr.html">ip6_hdr</a></div><div class="ttdef"><b>Definition:</b> <a href="../../de/d63/prot_2ip6_8h_source.html#l00080">ip6.h:80</a></div></div>
<div class="ttc" id="astructpbuf_html"><div class="ttname"><a href="../../d9/db8/structpbuf.html">pbuf</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d35/pbuf_8h_source.html#l00142">pbuf.h:142</a></div></div>
<div class="ttc" id="aip6_8h_html"><div class="ttname"><a href="../../d0/dca/ip6_8h.html">ip6.h</a></div></div>
<div class="ttc" id="apbuf_8h_html_aaa17c1951cf2d207b6adfd3947d91f00"><div class="ttname"><a href="../../d0/d35/pbuf_8h.html#aaa17c1951cf2d207b6adfd3947d91f00">pbuf_header</a></div><div class="ttdeci">u8_t pbuf_header(struct pbuf *p, s16_t header_size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/df0/pbuf_8c_source.html#l00665">pbuf.c:665</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ggab7e0e32fcc292c0d7107721766ed92fbac9b6ba960fdea6f2e8f35c8313b77e4e"><div class="ttname"><a href="../../d7/d05/group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac9b6ba960fdea6f2e8f35c8313b77e4e">PBUF_REF</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d35/pbuf_8h_source.html#l00116">pbuf.h:116</a></div></div>
<div class="ttc" id="astructpbuf_html_a8d32dc3e964369d4eec638fc37fbc460"><div class="ttname"><a href="../../d9/db8/structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">pbuf::payload</a></div><div class="ttdeci">void * payload</div><div class="ttdef"><b>Definition:</b> <a href="../../d0/d35/pbuf_8h_source.html#l00147">pbuf.h:147</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>
<div class="ttc" id="afat__string_8h_html_a070d2ce7b6bb7e5c05602aa8c308d0c4"><div class="ttname"><a href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a></div><div class="ttdeci">#define NULL</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d8a/fat__string_8h_source.html#l00017">fat_string.h:17</a></div></div>
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="../../dir_427baa8a9a5be237f298d4545d0d1ce2.html">net</a></li><li class="navelem"><a class="el" href="../../dir_1cf66ead025f9237708795c937e76781.html">core</a></li><li class="navelem"><a class="el" href="../../dir_ab38967e79bf55d1e09e57a1a7ecba7b.html">ipv6</a></li><li class="navelem"><a class="el" href="../../d9/deb/ip6__frag_8c.html">ip6_frag.c</a></li>
<li class="footer">Generated by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="../../doxygen.png" alt="doxygen"/></a> 1.8.16 </li>
</ul>
</div>
</body>
</html>
