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<div class="title">nd6.c</div> </div>
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<a href="nd6_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="l00009"></a><span class="lineno"> 9</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * Copyright (c) 2010 Inico Technologies Ltd.</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification,</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * 1. Redistributions of source code must retain 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.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright notice,</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * this list of conditions and the following disclaimer in the documentation</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</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="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * derived from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</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="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</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="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * OF SUCH DAMAGE.</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"> * This file is part of the lwIP TCP/IP stack.</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"> * Author: Ivan Delamer <delamer@inicotech.com></span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * Please coordinate changes and requests with Ivan Delamer</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * <delamer@inicotech.com></span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include "<a class="code" href="opt_8h.html">net/opt.h</a>"</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  </div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#if LWIP_IPV6 </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="l00047"></a><span class="lineno"> 47</span>  </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#include "<a class="code" href="nd6_8h.html">net/nd6.h</a>"</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#include "<a class="code" href="nd6__priv_8h.html">net/priv/nd6_priv.h</a>"</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#include "<a class="code" href="prot_2nd6_8h.html">net/prot/nd6.h</a>"</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#include "<a class="code" href="prot_2icmp6_8h.html">net/prot/icmp6.h</a>"</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#include "<a class="code" href="pbuf_8h.html">net/pbuf.h</a>"</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#include "<a class="code" href="mem_8h.html">net/mem.h</a>"</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#include "<a class="code" href="memp_8h.html">net/memp.h</a>"</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#include "<a class="code" href="ip6_8h.html">net/ip6.h</a>"</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#include "<a class="code" href="ip6__addr_8h.html">net/ip6_addr.h</a>"</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#include "<a class="code" href="inet__chksum_8h.html">net/inet_chksum.h</a>"</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#include "<a class="code" href="netif_8h.html">net/netif.h</a>"</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#include "<a class="code" href="icmp6_8h.html">net/icmp6.h</a>"</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#include "<a class="code" href="mld6_8h.html">net/mld6.h</a>"</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#include "<a class="code" href="ip_8h.html">net/ip.h</a>"</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#include "<a class="code" href="stats_8h.html">net/stats.h</a>"</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#include "<a class="code" href="dns_8h.html">net/dns.h</a>"</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#include <<a class="code" href="string_8h.html">string.h</a>></span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#ifdef LWIP_HOOK_FILENAME</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#include LWIP_HOOK_FILENAME</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#if LWIP_IPV6_DUP_DETECT_ATTEMPTS > IP6_ADDR_TENTATIVE_COUNT_MASK</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor">#error LWIP_IPV6_DUP_DETECT_ATTEMPTS > IP6_ADDR_TENTATIVE_COUNT_MASK</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment">/* Router tables. */</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">struct </span>nd6_neighbor_cache_entry neighbor_cache[<a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>];</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">struct </span>nd6_destination_cache_entry destination_cache[<a class="code" href="lwipopts_8h.html#acad118b1ae886e80137a1d4f0fb19672">LWIP_ND6_NUM_DESTINATIONS</a>];</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="keyword">struct </span>nd6_prefix_list_entry prefix_list[<a class="code" href="lwipopts_8h.html#ad9cc576b5951f1b5e1c2b0d0bb831d9a">LWIP_ND6_NUM_PREFIXES</a>];</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="keyword">struct </span>nd6_router_list_entry default_router_list[<a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>];</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  </div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">/* Default values, can be updated by a RA message. */</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> reachable_time = <a class="code" href="lwipopts_8h.html#a269db9d61cdfc2fd3bc7b12c56261c74">LWIP_ND6_REACHABLE_TIME</a>;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> retrans_timer = <a class="code" href="lwipopts_8h.html#a461abcbeef1d236d1f3201827dd28ad9">LWIP_ND6_RETRANS_TIMER</a>; <span class="comment">/* @todo implement this value in timer */</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment">/* Index for cache entries. */</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> nd6_cached_neighbor_index;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> nd6_cached_destination_index;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  </div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment">/* Multicast address holder. */</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">static</span> ip6_addr_t multicast_address;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">/* Static buffer to parse RA packet options (size of a prefix option, biggest option) */</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> nd6_ra_buffer[<span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structprefix__option.html">prefix_option</a>)];</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment">/* Forward declarations. */</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_find_neighbor_cache_entry(<span class="keyword">const</span> ip6_addr_t *ip6addr);</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_new_neighbor_cache_entry(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">static</span> <span class="keywordtype">void</span> nd6_free_neighbor_cache_entry(<a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i);</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_find_destination_cache_entry(<span class="keyword">const</span> ip6_addr_t *ip6addr);</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_new_destination_cache_entry(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_is_prefix_in_netif(<span class="keyword">const</span> ip6_addr_t *ip6addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_select_router(<span class="keyword">const</span> ip6_addr_t *ip6addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_get_router(<span class="keyword">const</span> ip6_addr_t *router_addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_new_router(<span class="keyword">const</span> ip6_addr_t *router_addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_get_onlink_prefix(ip6_addr_t *prefix, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_new_onlink_prefix(ip6_addr_t *prefix, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> nd6_get_next_hop_entry(<span class="keyword">const</span> ip6_addr_t *ip6addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keyword">static</span> <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> nd6_queue_packet(<a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> neighbor_index, <span class="keyword">struct</span> <a class="code" href="structpbuf.html">pbuf</a> *q);</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="preprocessor">#define ND6_SEND_FLAG_MULTICAST_DEST 0x01</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="preprocessor">#define ND6_SEND_FLAG_ALLNODES_DEST 0x02</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="keyword">static</span> <span class="keywordtype">void</span> nd6_send_ns(<span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>, <span class="keyword">const</span> ip6_addr_t *target_addr, <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> flags);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">static</span> <span class="keywordtype">void</span> nd6_send_na(<span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>, <span class="keyword">const</span> ip6_addr_t *target_addr, <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> flags);</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="keyword">static</span> <span class="keywordtype">void</span> nd6_send_neighbor_cache_probe(<span class="keyword">struct</span> nd6_neighbor_cache_entry *entry, <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> flags);</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor">#if LWIP_IPV6_SEND_ROUTER_SOLICIT</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">static</span> <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> nd6_send_rs(<span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_SEND_ROUTER_SOLICIT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  </div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="preprocessor">#if LWIP_ND6_QUEUEING</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">static</span> <span class="keywordtype">void</span> nd6_free_q(<span class="keyword">struct</span> nd6_q_entry *q);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="preprocessor">#else </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor">#define nd6_free_q(q) pbuf_free(q)</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="keyword">static</span> <span class="keywordtype">void</span> nd6_send_q(<a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i);</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> nd6_input(<span class="keyword">struct</span> <a class="code" href="structpbuf.html">pbuf</a> *p, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *inp)</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>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> msg_type;</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  </div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.recv);</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  msg_type = *((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>);</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">switch</span> (msg_type) {</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">case</span> <a class="code" href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a1f99d333f425c28d3840e029cc9c46f3">ICMP6_TYPE_NA</a>: <span class="comment">/* Neighbor Advertisement. */</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  {</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">struct </span><a class="code" href="structna__header.html">na_header</a> *na_hdr;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *lladdr_opt;</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="comment">/* Check that na header fits in packet. */</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structna__header.html">na_header</a>))) {</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">/* @todo debug message */</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  }</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  </div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  na_hdr = (<span class="keyword">struct </span><a class="code" href="structna__header.html">na_header</a> *)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  </div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">/* Unsolicited NA?*/</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  if (ip6_addr_ismulticast(ip6_current_dest_addr())) {</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  ip6_addr_t target_address;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  </div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">/* This is an unsolicited NA.</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> * link-layer changed?</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="comment"> * part of DAD mechanism? */</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  </div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="comment">/* Create an aligned copy. */</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  ip6_addr_set(&target_address, &(na_hdr->target_address));</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  </div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="preprocessor">#if LWIP_IPV6_DUP_DETECT_ATTEMPTS</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="comment">/* If the target address matches this netif, it is a DAD response. */</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#a16c1b672604bfb0a66a6aeeb854589d3">LWIP_IPV6_NUM_ADDRESSES</a>; i++) {</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">if</span> (!ip6_addr_isinvalid(netif_ip6_addr_state(inp, i)) &&</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  ip6_addr_cmp(&target_address, netif_ip6_addr(inp, i))) {</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="comment">/* We are using a duplicate address. */</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  netif_ip6_addr_set_state(inp, i, IP6_ADDR_INVALID);</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  </div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="preprocessor">#if LWIP_IPV6_AUTOCONFIG</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">/* Check to see if this address was autoconfigured. */</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">if</span> (!ip6_addr_islinklocal(&target_address)) {</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  i = nd6_get_onlink_prefix(&target_address, inp);</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">if</span> (i >= 0) {</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">/* Mark this prefix as duplicate, so that we don't use it</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="comment"> * to generate this address again. */</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  prefix_list[i].flags |= ND6_PREFIX_AUTOCONFIG_ADDRESS_DUPLICATE;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  }</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_AUTOCONFIG */</span><span class="preprocessor"></span></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>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  }</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  }</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_DUP_DETECT_ATTEMPTS */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">/* Check that link-layer address option also fits in packet. */</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structna__header.html">na_header</a>) + 2)) {</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">/* @todo debug message */</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  }</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>  lladdr_opt = (<span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *)((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structna__header.html">na_header</a>));</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  </div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structna__header.html">na_header</a>) + (lladdr_opt->length << 3))) {</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">/* @todo debug message */</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  </div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="comment">/* This is an unsolicited NA, most likely there was a LLADDR change. */</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  i = nd6_find_neighbor_cache_entry(&target_address);</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">if</span> (i >= 0) {</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">if</span> (na_hdr->flags & <a class="code" href="prot_2nd6_8h.html#a37fb4993bbbf3c4886291d38b1c03393">ND6_FLAG_OVERRIDE</a>) {</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <a class="code" href="lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(neighbor_cache[i].lladdr, lladdr_opt->addr, inp-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a>);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  }</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  ip6_addr_t target_address;</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="comment">/* This is a solicited NA.</span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> * neighbor address resolution response?</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> * neighbor unreachability detection response? */</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  </div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="comment">/* Create an aligned copy. */</span></div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  ip6_addr_set(&target_address, &(na_hdr->target_address));</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  </div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="comment">/* Find the cache entry corresponding to this na. */</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  i = nd6_find_neighbor_cache_entry(&target_address);</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="comment">/* We no longer care about this target address. drop it. */</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  }</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="comment">/* Update cache entry. */</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">if</span> ((na_hdr->flags & <a class="code" href="prot_2nd6_8h.html#a37fb4993bbbf3c4886291d38b1c03393">ND6_FLAG_OVERRIDE</a>) ||</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  (neighbor_cache[i].state == ND6_INCOMPLETE)) {</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="comment">/* Check that link-layer address option also fits in packet. */</span></div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structna__header.html">na_header</a>) + 2)) {</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="comment">/* @todo debug message */</span></div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  }</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  </div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  lladdr_opt = (<span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *)((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structna__header.html">na_header</a>));</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  </div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structna__header.html">na_header</a>) + (lladdr_opt->length << 3))) {</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="comment">/* @todo debug message */</span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">return</span>;</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>  </div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <a class="code" href="lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(neighbor_cache[i].lladdr, lladdr_opt->addr, inp-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a>);</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  }</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  </div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  neighbor_cache[i].netif = inp;</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  neighbor_cache[i].<a class="code" href="structnetif.html#a809cc57c0dff09c5c9ae45b02c2002f3">state</a> = ND6_REACHABLE;</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  neighbor_cache[i].counter.reachable_time = reachable_time;</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>  <span class="comment">/* Send queued packets, if any. */</span></div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">if</span> (neighbor_cache[i].q != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  nd6_send_q(i);</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  }</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  }</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  </div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">break</span>; <span class="comment">/* ICMP6_TYPE_NA */</span></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>  <span class="keywordflow">case</span> <a class="code" href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a0d8d8717c6c34053d1101932c23929fe">ICMP6_TYPE_NS</a>: <span class="comment">/* Neighbor solicitation. */</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  {</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="keyword">struct </span><a class="code" href="structns__header.html">ns_header</a> *ns_hdr;</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *lladdr_opt;</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> accepted;</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  </div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">/* Check that ns header fits in packet. */</span></div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structns__header.html">ns_header</a>)) {</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="comment">/* @todo debug message */</span></div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">return</span>;</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>  </div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  ns_hdr = (<span class="keyword">struct </span><a class="code" href="structns__header.html">ns_header</a> *)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  </div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="comment">/* Check if there is a link-layer address provided. Only point to it if in this buffer. */</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  if (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> >= (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structns__header.html">ns_header</a>) + 2)) {</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  lladdr_opt = (<span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *)((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structns__header.html">ns_header</a>));</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structns__header.html">ns_header</a>) + (lladdr_opt->length << 3))) {</div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  lladdr_opt = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  }</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  lladdr_opt = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</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>  </div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="comment">/* Check if the target address is configured on the receiving netif. */</span></div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  accepted = 0;</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#a16c1b672604bfb0a66a6aeeb854589d3">LWIP_IPV6_NUM_ADDRESSES</a>; ++i) {</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="keywordflow">if</span> ((ip6_addr_isvalid(netif_ip6_addr_state(inp, i)) ||</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  (ip6_addr_istentative(netif_ip6_addr_state(inp, i)) &&</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  ip6_addr_isany(ip6_current_src_addr()))) &&</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  ip6_addr_cmp(&(ns_hdr->target_address), netif_ip6_addr(inp, i))) {</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  accepted = 1;</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  }</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  }</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  </div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">/* NS not for us? */</span></div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">if</span> (!accepted) {</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordflow">return</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>  </div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="comment">/* Check for ANY address in src (DAD algorithm). */</span></div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">if</span> (ip6_addr_isany(ip6_current_src_addr())) {</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">/* Sender is validating this address. */</span></div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#a16c1b672604bfb0a66a6aeeb854589d3">LWIP_IPV6_NUM_ADDRESSES</a>; ++i) {</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordflow">if</span> (!ip6_addr_isinvalid(netif_ip6_addr_state(inp, i)) &&</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  ip6_addr_cmp(&(ns_hdr->target_address), netif_ip6_addr(inp, i))) {</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="comment">/* Send a NA back so that the sender does not use this address. */</span></div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  nd6_send_na(inp, netif_ip6_addr(inp, i), <a class="code" href="prot_2nd6_8h.html#a37fb4993bbbf3c4886291d38b1c03393">ND6_FLAG_OVERRIDE</a> | ND6_SEND_FLAG_ALLNODES_DEST);</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordflow">if</span> (ip6_addr_istentative(netif_ip6_addr_state(inp, i))) {</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="comment">/* We shouldn't use this address either. */</span></div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  netif_ip6_addr_set_state(inp, i, IP6_ADDR_INVALID);</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  }</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  }</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  }</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  ip6_addr_t target_address;</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  </div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="comment">/* Sender is trying to resolve our address. */</span></div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="comment">/* Verify that they included their own link-layer address. */</span></div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="keywordflow">if</span> (lladdr_opt == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="comment">/* Not a valid message. */</span></div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.proterr);</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  }</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  </div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  i = nd6_find_neighbor_cache_entry(ip6_current_src_addr());</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">if</span> (i>= 0) {</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="comment">/* We already have a record for the solicitor. */</span></div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordflow">if</span> (neighbor_cache[i].state == ND6_INCOMPLETE) {</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  neighbor_cache[i].netif = inp;</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <a class="code" href="lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(neighbor_cache[i].lladdr, lladdr_opt->addr, inp-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a>);</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  </div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">/* Delay probe in case we get confirmation of reachability from upper layer (TCP). */</span></div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  neighbor_cache[i].state = ND6_DELAY;</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  neighbor_cache[i].counter.delay_time = <a class="code" href="lwipopts_8h.html#a315bd6d4a9d185766dfc3253cd9d7715">LWIP_ND6_DELAY_FIRST_PROBE_TIME</a> / ND6_TMR_INTERVAL;</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  }</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="comment">/* Add their IPv6 address and link-layer address to neighbor cache.</span></div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="comment"> * We will need it at least to send a unicast NA message, but most</span></div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="comment"> * likely we will also be communicating with this node soon. */</span></div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  i = nd6_new_neighbor_cache_entry();</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="comment">/* We couldn't assign a cache entry for this neighbor.</span></div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="comment"> * we won't be able to reply. drop it. */</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.memerr);</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  }</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  neighbor_cache[i].netif = inp;</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <a class="code" href="lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(neighbor_cache[i].lladdr, lladdr_opt->addr, inp-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a>);</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  ip6_addr_set(&(neighbor_cache[i].next_hop_address), ip6_current_src_addr());</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">/* Receiving a message does not prove reachability: only in one direction.</span></div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> <span class="comment"> * Delay probe in case we get confirmation of reachability from upper layer (TCP). */</span></div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  neighbor_cache[i].state = ND6_DELAY;</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  neighbor_cache[i].counter.delay_time = <a class="code" href="lwipopts_8h.html#a315bd6d4a9d185766dfc3253cd9d7715">LWIP_ND6_DELAY_FIRST_PROBE_TIME</a> / ND6_TMR_INTERVAL;</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  }</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  </div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="comment">/* Create an aligned copy. */</span></div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  ip6_addr_set(&target_address, &(ns_hdr->target_address));</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="comment">/* Send back a NA for us. Allocate the reply pbuf. */</span></div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  nd6_send_na(inp, &target_address, <a class="code" href="prot_2nd6_8h.html#ae6bf6657a8a6b004681948090dfa2d7c">ND6_FLAG_SOLICITED</a> | <a class="code" href="prot_2nd6_8h.html#a37fb4993bbbf3c4886291d38b1c03393">ND6_FLAG_OVERRIDE</a>);</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  }</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  </div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordflow">break</span>; <span class="comment">/* ICMP6_TYPE_NS */</span></div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  }</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordflow">case</span> <a class="code" href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858ae4ae04be7df3a2cce614af0a5cdae951">ICMP6_TYPE_RA</a>: <span class="comment">/* Router Advertisement. */</span></div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  {</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keyword">struct </span><a class="code" href="structra__header.html">ra_header</a> *ra_hdr;</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *<a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a>; <span class="comment">/* Used to copy options. */</span></div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> offset;</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> <span class="preprocessor">#if LWIP_ND6_RDNSS_MAX_DNS_SERVERS</span></div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  <span class="comment">/* There can by multiple RDNSS options per RA */</span></div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> rdnss_server_idx = 0;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_RDNSS_MAX_DNS_SERVERS */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  </div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="comment">/* Check that RA header fits in packet. */</span></div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structra__header.html">ra_header</a>)) {</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="comment">/* @todo debug message */</span></div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  }</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  </div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  ra_hdr = (<span class="keyword">struct </span><a class="code" href="structra__header.html">ra_header</a> *)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  </div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="comment">/* If we are sending RS messages, stop. */</span></div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span> #<span class="keywordflow">if</span> <a class="code" href="lwipopts_8h.html#a273ed2e1a4e6a43713a0e4a06a34ee5c">LWIP_IPV6_SEND_ROUTER_SOLICIT</a></div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="comment">/* ensure at least one solicitation is sent */</span></div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  if ((inp->rs_count < <a class="code" href="lwipopts_8h.html#a980909018aed54adc10dd68be3572b30">LWIP_ND6_MAX_MULTICAST_SOLICIT</a>) ||</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  (nd6_send_rs(inp) == <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>)) {</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  inp->rs_count = 0;</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  }</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_SEND_ROUTER_SOLICIT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  </div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="comment">/* Get the matching default router entry. */</span></div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  i = nd6_get_router(ip6_current_src_addr(), inp);</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="comment">/* Create a new router entry. */</span></div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  i = nd6_new_router(ip6_current_src_addr(), inp);</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  }</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  </div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="comment">/* Could not create a new router entry. */</span></div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.memerr);</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  }</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  </div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="comment">/* Re-set invalidation timer. */</span></div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  default_router_list[i].invalidation_timer = <a class="code" href="def_8c.html#ad637280639de4066392e6b5614fa3e56">lwip_htons</a>(ra_hdr->router_lifetime);</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  </div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="comment">/* Re-set default timer values. */</span></div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span> <span class="preprocessor">#if LWIP_ND6_ALLOW_RA_UPDATES</span></div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordflow">if</span> (ra_hdr->retrans_timer > 0) {</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  retrans_timer = <a class="code" href="def_8c.html#a14f94347a5b9b9e3602705b75b7ae524">lwip_htonl</a>(ra_hdr->retrans_timer);</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  }</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">if</span> (ra_hdr->reachable_time > 0) {</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  reachable_time = <a class="code" href="def_8c.html#a14f94347a5b9b9e3602705b75b7ae524">lwip_htonl</a>(ra_hdr->reachable_time);</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> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_ALLOW_RA_UPDATES */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  </div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="comment">/* @todo set default hop limit... */</span></div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="comment">/* ra_hdr->current_hop_limit;*/</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">/* Update flags in local entry (incl. preference). */</span></div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  default_router_list[i].flags = ra_hdr->flags;</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  </div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="comment">/* Offset to options. */</span></div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  offset = <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structra__header.html">ra_header</a>);</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  </div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="comment">/* Process each option. */</span></div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keywordflow">while</span> ((p-><a class="code" href="structpbuf.html#a5259e7ec29bab9c0999b64f2e86b411f">tot_len</a> - offset) > 0) {</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> == p-><a class="code" href="structpbuf.html#a5259e7ec29bab9c0999b64f2e86b411f">tot_len</a>) {</div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="comment">/* no need to copy from contiguous pbuf */</span></div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a> = &((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>)[offset];</div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a> = nd6_ra_buffer;</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keywordflow">if</span> (<a class="code" href="group__pbuf.html#gac2f1f58fd36042e82af46f5015720899">pbuf_copy_partial</a>(p, <a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a>, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structprefix__option.html">prefix_option</a>), offset) != <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structprefix__option.html">prefix_option</a>)) {</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  }</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>  <span class="keywordflow">if</span> (<a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a>[1] == 0) {</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="comment">/* zero-length extension. drop packet */</span></div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  }</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordflow">switch</span> (<a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a>[0]) {</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="keywordflow">case</span> <a class="code" href="prot_2nd6_8h.html#a68ce8550a20cd30093d6e79e1ca51842">ND6_OPTION_TYPE_SOURCE_LLADDR</a>:</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  {</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *lladdr_opt;</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  lladdr_opt = (<span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *)<a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a>;</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keywordflow">if</span> ((default_router_list[i].neighbor_entry != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) &&</div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  (default_router_list[i].neighbor_entry->state == ND6_INCOMPLETE)) {</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  <a class="code" href="lwipopts_8h.html#a8c6e3c1e4f74acb16376188dbf8909ec">SMEMCPY</a>(default_router_list[i].neighbor_entry->lladdr, lladdr_opt->addr, inp-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a>);</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  default_router_list[i].neighbor_entry->state = ND6_REACHABLE;</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  default_router_list[i].neighbor_entry->counter.reachable_time = reachable_time;</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="keywordflow">break</span>;</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  }</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordflow">case</span> <a class="code" href="prot_2nd6_8h.html#aab6c15c9bea51fbdcc660f718bb403a8">ND6_OPTION_TYPE_MTU</a>:</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>  <span class="keyword">struct </span><a class="code" href="structmtu__option.html">mtu_option</a> *mtu_opt;</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  mtu_opt = (<span class="keyword">struct </span><a class="code" href="structmtu__option.html">mtu_option</a> *)<a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a>;</div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keywordflow">if</span> (<a class="code" href="def_8c.html#a14f94347a5b9b9e3602705b75b7ae524">lwip_htonl</a>(mtu_opt->mtu) >= 1280) {</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span> <span class="preprocessor">#if LWIP_ND6_ALLOW_RA_UPDATES</span></div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  inp-><a class="code" href="structnetif.html#aca7d56b4e0f822b0ced2885f222b8d48">mtu</a> = (<a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a>)<a class="code" href="def_8c.html#a14f94347a5b9b9e3602705b75b7ae524">lwip_htonl</a>(mtu_opt->mtu);</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_ALLOW_RA_UPDATES */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  }</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="keywordflow">break</span>;</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>  <span class="keywordflow">case</span> <a class="code" href="prot_2nd6_8h.html#a0225d4c8911efdbdbc2b40de208906c2">ND6_OPTION_TYPE_PREFIX_INFO</a>:</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  {</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keyword">struct </span><a class="code" href="structprefix__option.html">prefix_option</a> *prefix_opt;</div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  prefix_opt = (<span class="keyword">struct </span><a class="code" href="structprefix__option.html">prefix_option</a> *)<a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a>;</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  </div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordflow">if</span> ((prefix_opt->flags & <a class="code" href="prot_2nd6_8h.html#a5714faec71a571f2334ed750a33c61a2">ND6_PREFIX_FLAG_ON_LINK</a>) &&</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  (prefix_opt->prefix_length == 64) &&</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  !ip6_addr_islinklocal(&(prefix_opt->prefix))) {</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="comment">/* Add to on-link prefix list. */</span></div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> prefix;</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  ip6_addr_t prefix_addr;</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  </div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="comment">/* Get a memory-aligned copy of the prefix. */</span></div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  ip6_addr_set(&prefix_addr, &(prefix_opt->prefix));</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  </div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="comment">/* find cache entry for this prefix. */</span></div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  prefix = nd6_get_onlink_prefix(&prefix_addr, inp);</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keywordflow">if</span> (prefix < 0) {</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="comment">/* Create a new cache entry. */</span></div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  prefix = nd6_new_onlink_prefix(&prefix_addr, inp);</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  }</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordflow">if</span> (prefix >= 0) {</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  prefix_list[prefix].invalidation_timer = <a class="code" href="def_8c.html#a14f94347a5b9b9e3602705b75b7ae524">lwip_htonl</a>(prefix_opt->valid_lifetime);</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  </div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span> <span class="preprocessor">#if LWIP_IPV6_AUTOCONFIG</span></div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keywordflow">if</span> (prefix_opt->flags & <a class="code" href="prot_2nd6_8h.html#acc8f3704e72b27a166b120eec5a2665b">ND6_PREFIX_FLAG_AUTONOMOUS</a>) {</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <span class="comment">/* Mark prefix as autonomous, so that address autoconfiguration can take place.</span></div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span> <span class="comment"> * Only OR flag, so that we don't over-write other flags (such as ADDRESS_DUPLICATE)*/</span></div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  prefix_list[prefix].flags |= ND6_PREFIX_AUTOCONFIG_AUTONOMOUS;</div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  }</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_AUTOCONFIG */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  }</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  }</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  </div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  }</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="keywordflow">case</span> <a class="code" href="prot_2nd6_8h.html#aff2e03766ee1fa15263c4aeda5097d28">ND6_OPTION_TYPE_ROUTE_INFO</a>:</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="comment">/* @todo implement preferred routes.</span></div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="comment"> struct route_option * route_opt;</span></div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span> <span class="comment"> route_opt = (struct route_option *)buffer;*/</span></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>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="preprocessor">#if LWIP_ND6_RDNSS_MAX_DNS_SERVERS</span></div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <span class="keywordflow">case</span> <a class="code" href="prot_2nd6_8h.html#a3188b9704a8ca598f54b87c3db73272e">ND6_OPTION_TYPE_RDNSS</a>:</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>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> num, n;</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="keyword">struct </span><a class="code" href="structrdnss__option.html">rdnss_option</a> * rdnss_opt;</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  </div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  rdnss_opt = (<span class="keyword">struct </span><a class="code" href="structrdnss__option.html">rdnss_option</a> *)<a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a>;</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  num = (rdnss_opt->length - 1) / 2;</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <span class="keywordflow">for</span> (n = 0; (rdnss_server_idx < <a class="code" href="lwipopts_8h.html#a9f9881c887a8aceb9765820c2dbdf292">DNS_MAX_SERVERS</a>) && (n < num); n++) {</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> rdnss_address;</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  </div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="comment">/* Get a memory-aligned copy of the prefix. */</span></div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <a class="code" href="ip__addr_8h.html#abe6f7908ce8a91dc587e2ebc2172e651">ip_addr_copy_from_ip6</a>(rdnss_address, rdnss_opt->rdnss_address[n]);</div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  </div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="keywordflow">if</span> (<a class="code" href="def_8h.html#ae4027a6ad07f13aa12eab285a1b46019">htonl</a>(rdnss_opt->lifetime) > 0) {</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="comment">/* TODO implement Lifetime > 0 */</span></div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  dns_setserver(rdnss_server_idx++, &rdnss_address);</div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="comment">/* TODO implement DNS removal in dns.c */</span></div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> s;</div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keywordflow">for</span> (s = 0; s < <a class="code" href="lwipopts_8h.html#a9f9881c887a8aceb9765820c2dbdf292">DNS_MAX_SERVERS</a>; s++) {</div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="keyword">const</span> <a class="code" href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a> *addr = dns_getserver(s);</div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="keywordflow">if</span>(<a class="code" href="ip__addr_8h.html#a008c9c92d770cc030ea054e6b259835a">ip_addr_cmp</a>(addr, &rdnss_address)) {</div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  dns_setserver(s, <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  }</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  }</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>  }</div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  }</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_RDNSS_MAX_DNS_SERVERS */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="comment">/* Unrecognized option, abort. */</span></div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.proterr);</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  }</div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <span class="comment">/* option length is checked earlier to be non-zero to make sure loop ends */</span></div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  offset += 8 * ((<a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a>)<a class="code" href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a>[1]);</div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  }</div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  </div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="keywordflow">break</span>; <span class="comment">/* ICMP6_TYPE_RA */</span></div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  }</div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  <span class="keywordflow">case</span> <a class="code" href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a0f6702d62de5f873e0afe7431d878207">ICMP6_TYPE_RD</a>: <span class="comment">/* Redirect */</span></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>  <span class="keyword">struct </span><a class="code" href="structredirect__header.html">redirect_header</a> *redir_hdr;</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  <span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *lladdr_opt;</div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  ip6_addr_t tmp;</div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  </div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="comment">/* Check that Redir header fits in packet. */</span></div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structredirect__header.html">redirect_header</a>)) {</div>
<div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="comment">/* @todo debug message */</span></div>
<div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  <span class="keywordflow">return</span>;</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>  redir_hdr = (<span class="keyword">struct </span><a class="code" href="structredirect__header.html">redirect_header</a> *)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  </div>
<div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  if (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> >= (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structredirect__header.html">redirect_header</a>) + 2)) {</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  lladdr_opt = (<span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *)((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structredirect__header.html">redirect_header</a>));</div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structredirect__header.html">redirect_header</a>) + (lladdr_opt->length << 3))) {</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  lladdr_opt = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  }</div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span>  lladdr_opt = <a class="code" href="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="comment">/* Copy original destination address to current source address, to have an aligned copy. */</span></div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  ip6_addr_set(&tmp, &(redir_hdr->destination_address));</div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  </div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  <span class="comment">/* Find dest address in cache */</span></div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  i = nd6_find_destination_cache_entry(&tmp);</div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <span class="comment">/* Destination not in cache, drop packet. */</span></div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  }</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>  <span class="comment">/* Set the new target address. */</span></div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  ip6_addr_set(&(destination_cache[i].next_hop_addr), &(redir_hdr->target_address));</div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  </div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="comment">/* If Link-layer address of other router is given, try to add to neighbor cache. */</span></div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  <span class="keywordflow">if</span> (lladdr_opt != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  <span class="keywordflow">if</span> (lladdr_opt->type == <a class="code" href="prot_2nd6_8h.html#a787edcc6357686798581dd714d68c8c1">ND6_OPTION_TYPE_TARGET_LLADDR</a>) {</div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="comment">/* Copy target address to current source address, to have an aligned copy. */</span></div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  ip6_addr_set(&tmp, &(redir_hdr->target_address));</div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  </div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  i = nd6_find_neighbor_cache_entry(&tmp);</div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  i = nd6_new_neighbor_cache_entry();</div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  <span class="keywordflow">if</span> (i >= 0) {</div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  neighbor_cache[i].netif = inp;</div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <a class="code" href="lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(neighbor_cache[i].lladdr, lladdr_opt->addr, inp-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a>);</div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  ip6_addr_set(&(neighbor_cache[i].next_hop_address), &tmp);</div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  </div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="comment">/* Receiving a message does not prove reachability: only in one direction.</span></div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span> <span class="comment"> * Delay probe in case we get confirmation of reachability from upper layer (TCP). */</span></div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  neighbor_cache[i].state = ND6_DELAY;</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  neighbor_cache[i].counter.delay_time = <a class="code" href="lwipopts_8h.html#a315bd6d4a9d185766dfc3253cd9d7715">LWIP_ND6_DELAY_FIRST_PROBE_TIME</a> / ND6_TMR_INTERVAL;</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>  }</div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="keywordflow">if</span> (i >= 0) {</div>
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="keywordflow">if</span> (neighbor_cache[i].state == ND6_INCOMPLETE) {</div>
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <a class="code" href="lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a>(neighbor_cache[i].lladdr, lladdr_opt->addr, inp-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a>);</div>
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="comment">/* Receiving a message does not prove reachability: only in one direction.</span></div>
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span> <span class="comment"> * Delay probe in case we get confirmation of reachability from upper layer (TCP). */</span></div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  neighbor_cache[i].state = ND6_DELAY;</div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  neighbor_cache[i].counter.delay_time = <a class="code" href="lwipopts_8h.html#a315bd6d4a9d185766dfc3253cd9d7715">LWIP_ND6_DELAY_FIRST_PROBE_TIME</a> / ND6_TMR_INTERVAL;</div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  }</div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  }</div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  }</div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  }</div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  <span class="keywordflow">break</span>; <span class="comment">/* ICMP6_TYPE_RD */</span></div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  }</div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <span class="keywordflow">case</span> <a class="code" href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a1d52ef5024a5822bd622bcb0b9da323d">ICMP6_TYPE_PTB</a>: <span class="comment">/* Packet too big */</span></div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  {</div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  <span class="keyword">struct </span><a class="code" href="structicmp6__hdr.html">icmp6_hdr</a> *icmp6hdr; <span class="comment">/* Packet too big message */</span></div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="keyword">struct </span><a class="code" href="structip6__hdr.html">ip6_hdr</a> *ip6hdr; <span class="comment">/* IPv6 header of the packet which caused the error */</span></div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> pmtu;</div>
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  ip6_addr_t tmp;</div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  </div>
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <span class="comment">/* Check that ICMPv6 header + IPv6 header fit in payload */</span></div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a> < (<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structicmp6__hdr.html">icmp6_hdr</a>) + <a class="code" href="prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a>)) {</div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  <span class="comment">/* drop short packets */</span></div>
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.lenerr);</div>
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  }</div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  </div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  icmp6hdr = (<span class="keyword">struct </span><a class="code" href="structicmp6__hdr.html">icmp6_hdr</a> *)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  ip6hdr = (<span class="keyword">struct</span> <a class="code" href="structip6__hdr.html">ip6_hdr</a> *)((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structicmp6__hdr.html">icmp6_hdr</a>));</div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  </div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  <span class="comment">/* Copy original destination address to current source address, to have an aligned copy. */</span></div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  ip6_addr_set(&tmp, &(ip6hdr->dest));</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>  <span class="comment">/* Look for entry in destination cache. */</span></div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  i = nd6_find_destination_cache_entry(&tmp);</div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  <span class="comment">/* Destination not in cache, drop packet. */</span></div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <span class="keywordflow">return</span>;</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>  </div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  <span class="comment">/* Change the Path MTU. */</span></div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  pmtu = <a class="code" href="def_8c.html#a14f94347a5b9b9e3602705b75b7ae524">lwip_htonl</a>(icmp6hdr->data);</div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  destination_cache[i].pmtu = (<a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a>)<a class="code" href="def_8h.html#a748f5df614a3fc989e8900fd229d6e4e">LWIP_MIN</a>(pmtu, 0xFFFF);</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="keywordflow">break</span>; <span class="comment">/* ICMP6_TYPE_PTB */</span></div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  }</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="keywordflow">default</span>:</div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.proterr);</div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.drop);</div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span>  <span class="keywordflow">break</span>; <span class="comment">/* default */</span></div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  }</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="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span> }</div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  </div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  </div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span> nd6_tmr(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span> {</div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  <span class="keyword">struct </span><a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>;</div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  </div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <span class="comment">/* Process neighbor entries. */</span></div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>; i++) {</div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <span class="keywordflow">switch</span> (neighbor_cache[i].<a class="code" href="structnetif.html#a809cc57c0dff09c5c9ae45b02c2002f3">state</a>) {</div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  <span class="keywordflow">case</span> ND6_INCOMPLETE:</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <span class="keywordflow">if</span> ((neighbor_cache[i].counter.probes_sent >= <a class="code" href="lwipopts_8h.html#a980909018aed54adc10dd68be3572b30">LWIP_ND6_MAX_MULTICAST_SOLICIT</a>) &&</div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  (!neighbor_cache[i].isrouter)) {</div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <span class="comment">/* Retries exceeded. */</span></div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  nd6_free_neighbor_cache_entry(i);</div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <span class="comment">/* Send a NS for this entry. */</span></div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  neighbor_cache[i].counter.probes_sent++;</div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  nd6_send_neighbor_cache_probe(&neighbor_cache[i], ND6_SEND_FLAG_MULTICAST_DEST);</div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  }</div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  <span class="keywordflow">case</span> ND6_REACHABLE:</div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span>  <span class="comment">/* Send queued packets, if any are left. Should have been sent already. */</span></div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <span class="keywordflow">if</span> (neighbor_cache[i].q != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  nd6_send_q(i);</div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  }</div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  <span class="keywordflow">if</span> (neighbor_cache[i].counter.reachable_time <= ND6_TMR_INTERVAL) {</div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="comment">/* Change to stale state. */</span></div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  neighbor_cache[i].state = ND6_STALE;</div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  neighbor_cache[i].counter.stale_time = 0;</div>
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  neighbor_cache[i].counter.reachable_time -= ND6_TMR_INTERVAL;</div>
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  }</div>
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keywordflow">case</span> ND6_STALE:</div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  neighbor_cache[i].counter.stale_time++;</div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  <span class="keywordflow">case</span> ND6_DELAY:</div>
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  <span class="keywordflow">if</span> (neighbor_cache[i].counter.delay_time <= 1) {</div>
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  <span class="comment">/* Change to PROBE state. */</span></div>
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  neighbor_cache[i].state = ND6_PROBE;</div>
<div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  neighbor_cache[i].counter.probes_sent = 0;</div>
<div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  neighbor_cache[i].counter.delay_time--;</div>
<div class="line"><a name="l00758"></a><span class="lineno"> 758</span>  }</div>
<div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  <span class="keywordflow">case</span> ND6_PROBE:</div>
<div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  <span class="keywordflow">if</span> ((neighbor_cache[i].counter.probes_sent >= <a class="code" href="lwipopts_8h.html#a980909018aed54adc10dd68be3572b30">LWIP_ND6_MAX_MULTICAST_SOLICIT</a>) &&</div>
<div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  (!neighbor_cache[i].isrouter)) {</div>
<div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  <span class="comment">/* Retries exceeded. */</span></div>
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  nd6_free_neighbor_cache_entry(i);</div>
<div class="line"><a name="l00765"></a><span class="lineno"> 765</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  <span class="comment">/* Send a NS for this entry. */</span></div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  neighbor_cache[i].counter.probes_sent++;</div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  nd6_send_neighbor_cache_probe(&neighbor_cache[i], 0);</div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  }</div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  <span class="keywordflow">case</span> ND6_NO_ENTRY:</div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  <span class="comment">/* Do nothing. */</span></div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  <span class="keywordflow">break</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>  }</div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  </div>
<div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  <span class="comment">/* Process destination entries. */</span></div>
<div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#acad118b1ae886e80137a1d4f0fb19672">LWIP_ND6_NUM_DESTINATIONS</a>; i++) {</div>
<div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  destination_cache[i].age++;</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>  </div>
<div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  <span class="comment">/* Process router entries. */</span></div>
<div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>; i++) {</div>
<div class="line"><a name="l00785"></a><span class="lineno"> 785</span>  <span class="keywordflow">if</span> (default_router_list[i].neighbor_entry != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00786"></a><span class="lineno"> 786</span>  <span class="comment">/* Active entry. */</span></div>
<div class="line"><a name="l00787"></a><span class="lineno"> 787</span>  <span class="keywordflow">if</span> (default_router_list[i].invalidation_timer > 0) {</div>
<div class="line"><a name="l00788"></a><span class="lineno"> 788</span>  default_router_list[i].invalidation_timer -= ND6_TMR_INTERVAL / 1000;</div>
<div class="line"><a name="l00789"></a><span class="lineno"> 789</span>  }</div>
<div class="line"><a name="l00790"></a><span class="lineno"> 790</span>  <span class="keywordflow">if</span> (default_router_list[i].invalidation_timer < ND6_TMR_INTERVAL / 1000) {</div>
<div class="line"><a name="l00791"></a><span class="lineno"> 791</span>  <span class="comment">/* Less than 1 second remaining. Clear this entry. */</span></div>
<div class="line"><a name="l00792"></a><span class="lineno"> 792</span>  default_router_list[i].neighbor_entry->isrouter = 0;</div>
<div class="line"><a name="l00793"></a><span class="lineno"> 793</span>  default_router_list[i].neighbor_entry = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00794"></a><span class="lineno"> 794</span>  default_router_list[i].invalidation_timer = 0;</div>
<div class="line"><a name="l00795"></a><span class="lineno"> 795</span>  default_router_list[i].flags = 0;</div>
<div class="line"><a name="l00796"></a><span class="lineno"> 796</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>  }</div>
<div class="line"><a name="l00799"></a><span class="lineno"> 799</span>  </div>
<div class="line"><a name="l00800"></a><span class="lineno"> 800</span>  <span class="comment">/* Process prefix entries. */</span></div>
<div class="line"><a name="l00801"></a><span class="lineno"> 801</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ad9cc576b5951f1b5e1c2b0d0bb831d9a">LWIP_ND6_NUM_PREFIXES</a>; i++) {</div>
<div class="line"><a name="l00802"></a><span class="lineno"> 802</span>  <span class="keywordflow">if</span> (prefix_list[i].<a class="code" href="structnetif.html">netif</a> != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00803"></a><span class="lineno"> 803</span>  <span class="keywordflow">if</span> (prefix_list[i].invalidation_timer < ND6_TMR_INTERVAL / 1000) {</div>
<div class="line"><a name="l00804"></a><span class="lineno"> 804</span>  <span class="comment">/* Entry timed out, remove it */</span></div>
<div class="line"><a name="l00805"></a><span class="lineno"> 805</span>  prefix_list[i].invalidation_timer = 0;</div>
<div class="line"><a name="l00806"></a><span class="lineno"> 806</span>  </div>
<div class="line"><a name="l00807"></a><span class="lineno"> 807</span> <span class="preprocessor">#if LWIP_IPV6_AUTOCONFIG</span></div>
<div class="line"><a name="l00808"></a><span class="lineno"> 808</span>  <span class="comment">/* If any addresses were configured with this prefix, remove them */</span></div>
<div class="line"><a name="l00809"></a><span class="lineno"> 809</span>  <span class="keywordflow">if</span> (prefix_list[i].<a class="code" href="structnetif.html#a1c171db6097bbb6f09f63549a66e00ea">flags</a> & ND6_PREFIX_AUTOCONFIG_ADDRESS_GENERATED) {</div>
<div class="line"><a name="l00810"></a><span class="lineno"> 810</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> j;</div>
<div class="line"><a name="l00811"></a><span class="lineno"> 811</span>  </div>
<div class="line"><a name="l00812"></a><span class="lineno"> 812</span>  <span class="keywordflow">for</span> (j = 1; j < <a class="code" href="lwipopts_8h.html#a16c1b672604bfb0a66a6aeeb854589d3">LWIP_IPV6_NUM_ADDRESSES</a>; j++) {</div>
<div class="line"><a name="l00813"></a><span class="lineno"> 813</span>  <span class="keywordflow">if</span> ((netif_ip6_addr_state(prefix_list[i].<a class="code" href="structnetif.html">netif</a>, j) != IP6_ADDR_INVALID) &&</div>
<div class="line"><a name="l00814"></a><span class="lineno"> 814</span>  ip6_addr_netcmp(&prefix_list[i].prefix, netif_ip6_addr(prefix_list[i].<a class="code" href="structnetif.html">netif</a>, j))) {</div>
<div class="line"><a name="l00815"></a><span class="lineno"> 815</span>  netif_ip6_addr_set_state(prefix_list[i].<a class="code" href="structnetif.html">netif</a>, j, IP6_ADDR_INVALID);</div>
<div class="line"><a name="l00816"></a><span class="lineno"> 816</span>  prefix_list[i].flags = 0;</div>
<div class="line"><a name="l00817"></a><span class="lineno"> 817</span>  </div>
<div class="line"><a name="l00818"></a><span class="lineno"> 818</span>  <span class="comment">/* Exit loop. */</span></div>
<div class="line"><a name="l00819"></a><span class="lineno"> 819</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00820"></a><span class="lineno"> 820</span>  }</div>
<div class="line"><a name="l00821"></a><span class="lineno"> 821</span>  }</div>
<div class="line"><a name="l00822"></a><span class="lineno"> 822</span>  }</div>
<div class="line"><a name="l00823"></a><span class="lineno"> 823</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_AUTOCONFIG */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00824"></a><span class="lineno"> 824</span>  </div>
<div class="line"><a name="l00825"></a><span class="lineno"> 825</span>  prefix_list[i].netif = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00826"></a><span class="lineno"> 826</span>  prefix_list[i].flags = 0;</div>
<div class="line"><a name="l00827"></a><span class="lineno"> 827</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00828"></a><span class="lineno"> 828</span>  prefix_list[i].invalidation_timer -= ND6_TMR_INTERVAL / 1000;</div>
<div class="line"><a name="l00829"></a><span class="lineno"> 829</span>  </div>
<div class="line"><a name="l00830"></a><span class="lineno"> 830</span> <span class="preprocessor">#if LWIP_IPV6_AUTOCONFIG</span></div>
<div class="line"><a name="l00831"></a><span class="lineno"> 831</span>  <span class="comment">/* Initiate address autoconfiguration for this prefix, if conditions are met. */</span></div>
<div class="line"><a name="l00832"></a><span class="lineno"> 832</span>  <span class="keywordflow">if</span> (prefix_list[i].<a class="code" href="structnetif.html">netif</a>->ip6_autoconfig_enabled &&</div>
<div class="line"><a name="l00833"></a><span class="lineno"> 833</span>  (prefix_list[i].flags & ND6_PREFIX_AUTOCONFIG_AUTONOMOUS) &&</div>
<div class="line"><a name="l00834"></a><span class="lineno"> 834</span>  !(prefix_list[i].flags & ND6_PREFIX_AUTOCONFIG_ADDRESS_GENERATED)) {</div>
<div class="line"><a name="l00835"></a><span class="lineno"> 835</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> j;</div>
<div class="line"><a name="l00836"></a><span class="lineno"> 836</span>  <span class="comment">/* Try to get an address on this netif that is invalid.</span></div>
<div class="line"><a name="l00837"></a><span class="lineno"> 837</span> <span class="comment"> * Skip 0 index (link-local address) */</span></div>
<div class="line"><a name="l00838"></a><span class="lineno"> 838</span>  <span class="keywordflow">for</span> (j = 1; j < <a class="code" href="lwipopts_8h.html#a16c1b672604bfb0a66a6aeeb854589d3">LWIP_IPV6_NUM_ADDRESSES</a>; j++) {</div>
<div class="line"><a name="l00839"></a><span class="lineno"> 839</span>  <span class="keywordflow">if</span> (netif_ip6_addr_state(prefix_list[i].<a class="code" href="structnetif.html">netif</a>, j) == IP6_ADDR_INVALID) {</div>
<div class="line"><a name="l00840"></a><span class="lineno"> 840</span>  <span class="comment">/* Generate an address using this prefix and interface ID from link-local address. */</span></div>
<div class="line"><a name="l00841"></a><span class="lineno"> 841</span>  netif_ip6_addr_set_parts(prefix_list[i].<a class="code" href="structnetif.html">netif</a>, j,</div>
<div class="line"><a name="l00842"></a><span class="lineno"> 842</span>  prefix_list[i].prefix.addr[0], prefix_list[i].prefix.addr[1],</div>
<div class="line"><a name="l00843"></a><span class="lineno"> 843</span>  netif_ip6_addr(prefix_list[i].<a class="code" href="structnetif.html">netif</a>, 0)->addr[2], netif_ip6_addr(prefix_list[i].<a class="code" href="structnetif.html">netif</a>, 0)->addr[3]);</div>
<div class="line"><a name="l00844"></a><span class="lineno"> 844</span>  </div>
<div class="line"><a name="l00845"></a><span class="lineno"> 845</span>  <span class="comment">/* Mark it as tentative (DAD will be performed if configured). */</span></div>
<div class="line"><a name="l00846"></a><span class="lineno"> 846</span>  netif_ip6_addr_set_state(prefix_list[i].<a class="code" href="structnetif.html">netif</a>, j, IP6_ADDR_TENTATIVE);</div>
<div class="line"><a name="l00847"></a><span class="lineno"> 847</span>  </div>
<div class="line"><a name="l00848"></a><span class="lineno"> 848</span>  <span class="comment">/* Mark this prefix with ADDRESS_GENERATED, so that we don't try again. */</span></div>
<div class="line"><a name="l00849"></a><span class="lineno"> 849</span>  prefix_list[i].flags |= ND6_PREFIX_AUTOCONFIG_ADDRESS_GENERATED;</div>
<div class="line"><a name="l00850"></a><span class="lineno"> 850</span>  </div>
<div class="line"><a name="l00851"></a><span class="lineno"> 851</span>  <span class="comment">/* Exit loop. */</span></div>
<div class="line"><a name="l00852"></a><span class="lineno"> 852</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00853"></a><span class="lineno"> 853</span>  }</div>
<div class="line"><a name="l00854"></a><span class="lineno"> 854</span>  }</div>
<div class="line"><a name="l00855"></a><span class="lineno"> 855</span>  }</div>
<div class="line"><a name="l00856"></a><span class="lineno"> 856</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_AUTOCONFIG */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00857"></a><span class="lineno"> 857</span>  }</div>
<div class="line"><a name="l00858"></a><span class="lineno"> 858</span>  }</div>
<div class="line"><a name="l00859"></a><span class="lineno"> 859</span>  }</div>
<div class="line"><a name="l00860"></a><span class="lineno"> 860</span>  </div>
<div class="line"><a name="l00861"></a><span class="lineno"> 861</span>  </div>
<div class="line"><a name="l00862"></a><span class="lineno"> 862</span>  <span class="comment">/* Process our own addresses, if DAD configured. */</span></div>
<div class="line"><a name="l00863"></a><span class="lineno"> 863</span>  <span class="keywordflow">for</span> (<a class="code" href="structnetif.html">netif</a> = <a class="code" href="netif_8h.html#a1c8141eaa98f6dc6dfddbb23a706656c">netif_list</a>; <a class="code" href="structnetif.html">netif</a> != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>; <a class="code" href="structnetif.html">netif</a> = <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#ae77736b64df442242795220d76be6b86">next</a>) {</div>
<div class="line"><a name="l00864"></a><span class="lineno"> 864</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#a16c1b672604bfb0a66a6aeeb854589d3">LWIP_IPV6_NUM_ADDRESSES</a>; ++i) {</div>
<div class="line"><a name="l00865"></a><span class="lineno"> 865</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> addr_state = netif_ip6_addr_state(<a class="code" href="structnetif.html">netif</a>, i);</div>
<div class="line"><a name="l00866"></a><span class="lineno"> 866</span>  <span class="keywordflow">if</span> (ip6_addr_istentative(addr_state)) {</div>
<div class="line"><a name="l00867"></a><span class="lineno"> 867</span>  <span class="keywordflow">if</span> ((addr_state & IP6_ADDR_TENTATIVE_COUNT_MASK) >= <a class="code" href="lwipopts_8h.html#ad8489522d34f37e42b4001bab3781bcb">LWIP_IPV6_DUP_DETECT_ATTEMPTS</a>) {</div>
<div class="line"><a name="l00868"></a><span class="lineno"> 868</span>  <span class="comment">/* No NA received in response. Mark address as valid. */</span></div>
<div class="line"><a name="l00869"></a><span class="lineno"> 869</span>  netif_ip6_addr_set_state(<a class="code" href="structnetif.html">netif</a>, i, IP6_ADDR_PREFERRED);</div>
<div class="line"><a name="l00870"></a><span class="lineno"> 870</span>  <span class="comment">/* @todo implement preferred and valid lifetimes. */</span></div>
<div class="line"><a name="l00871"></a><span class="lineno"> 871</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#a1c171db6097bbb6f09f63549a66e00ea">flags</a> & <a class="code" href="group__netif__flags.html#gab47d7d130693dc155f480a5bf447725e">NETIF_FLAG_UP</a>) {</div>
<div class="line"><a name="l00872"></a><span class="lineno"> 872</span>  <span class="comment">/* Send a NS for this address. */</span></div>
<div class="line"><a name="l00873"></a><span class="lineno"> 873</span>  nd6_send_ns(<a class="code" href="structnetif.html">netif</a>, netif_ip6_addr(<a class="code" href="structnetif.html">netif</a>, i), ND6_SEND_FLAG_MULTICAST_DEST);</div>
<div class="line"><a name="l00874"></a><span class="lineno"> 874</span>  <span class="comment">/* tentative: set next state by increasing by one */</span></div>
<div class="line"><a name="l00875"></a><span class="lineno"> 875</span>  netif_ip6_addr_set_state(<a class="code" href="structnetif.html">netif</a>, i, addr_state + 1);</div>
<div class="line"><a name="l00876"></a><span class="lineno"> 876</span>  <span class="comment">/* @todo send max 1 NS per tmr call? enable return*/</span></div>
<div class="line"><a name="l00877"></a><span class="lineno"> 877</span>  <span class="comment">/*return;*/</span></div>
<div class="line"><a name="l00878"></a><span class="lineno"> 878</span>  }</div>
<div class="line"><a name="l00879"></a><span class="lineno"> 879</span>  }</div>
<div class="line"><a name="l00880"></a><span class="lineno"> 880</span>  }</div>
<div class="line"><a name="l00881"></a><span class="lineno"> 881</span>  }</div>
<div class="line"><a name="l00882"></a><span class="lineno"> 882</span>  </div>
<div class="line"><a name="l00883"></a><span class="lineno"> 883</span> <span class="preprocessor">#if LWIP_IPV6_SEND_ROUTER_SOLICIT</span></div>
<div class="line"><a name="l00884"></a><span class="lineno"> 884</span>  <span class="comment">/* Send router solicitation messages, if necessary. */</span></div>
<div class="line"><a name="l00885"></a><span class="lineno"> 885</span>  <span class="keywordflow">for</span> (<a class="code" href="structnetif.html">netif</a> = <a class="code" href="netif_8h.html#a1c8141eaa98f6dc6dfddbb23a706656c">netif_list</a>; <a class="code" href="structnetif.html">netif</a> != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>; <a class="code" href="structnetif.html">netif</a> = <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#ae77736b64df442242795220d76be6b86">next</a>) {</div>
<div class="line"><a name="l00886"></a><span class="lineno"> 886</span>  <span class="keywordflow">if</span> ((<a class="code" href="structnetif.html">netif</a>->rs_count > 0) && (<a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#a1c171db6097bbb6f09f63549a66e00ea">flags</a> & <a class="code" href="group__netif__flags.html#gab47d7d130693dc155f480a5bf447725e">NETIF_FLAG_UP</a>) &&</div>
<div class="line"><a name="l00887"></a><span class="lineno"> 887</span>  (!ip6_addr_isinvalid(netif_ip6_addr_state(<a class="code" href="structnetif.html">netif</a>, 0)))) {</div>
<div class="line"><a name="l00888"></a><span class="lineno"> 888</span>  <span class="keywordflow">if</span> (nd6_send_rs(<a class="code" href="structnetif.html">netif</a>) == <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>) {</div>
<div class="line"><a name="l00889"></a><span class="lineno"> 889</span>  <a class="code" href="structnetif.html">netif</a>->rs_count--;</div>
<div class="line"><a name="l00890"></a><span class="lineno"> 890</span>  }</div>
<div class="line"><a name="l00891"></a><span class="lineno"> 891</span>  }</div>
<div class="line"><a name="l00892"></a><span class="lineno"> 892</span>  }</div>
<div class="line"><a name="l00893"></a><span class="lineno"> 893</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_SEND_ROUTER_SOLICIT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00894"></a><span class="lineno"> 894</span>  </div>
<div class="line"><a name="l00895"></a><span class="lineno"> 895</span> }</div>
<div class="line"><a name="l00896"></a><span class="lineno"> 896</span>  </div>
<div class="line"><a name="l00902"></a><span class="lineno"> 902</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00903"></a><span class="lineno"> 903</span> nd6_send_neighbor_cache_probe(<span class="keyword">struct</span> nd6_neighbor_cache_entry *entry, <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> <a class="code" href="structnetif.html#a1c171db6097bbb6f09f63549a66e00ea">flags</a>)</div>
<div class="line"><a name="l00904"></a><span class="lineno"> 904</span> {</div>
<div class="line"><a name="l00905"></a><span class="lineno"> 905</span>  nd6_send_ns(entry->netif, &entry->next_hop_address, <a class="code" href="structnetif.html#a1c171db6097bbb6f09f63549a66e00ea">flags</a>);</div>
<div class="line"><a name="l00906"></a><span class="lineno"> 906</span> }</div>
<div class="line"><a name="l00907"></a><span class="lineno"> 907</span>  </div>
<div class="line"><a name="l00915"></a><span class="lineno"> 915</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00916"></a><span class="lineno"> 916</span> nd6_send_ns(<span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>, <span class="keyword">const</span> ip6_addr_t *target_addr, <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> <a class="code" href="structnetif.html#a1c171db6097bbb6f09f63549a66e00ea">flags</a>)</div>
<div class="line"><a name="l00917"></a><span class="lineno"> 917</span> {</div>
<div class="line"><a name="l00918"></a><span class="lineno"> 918</span>  <span class="keyword">struct </span><a class="code" href="structns__header.html">ns_header</a> *ns_hdr;</div>
<div class="line"><a name="l00919"></a><span class="lineno"> 919</span>  <span class="keyword">struct </span><a class="code" href="structpbuf.html">pbuf</a> *p;</div>
<div class="line"><a name="l00920"></a><span class="lineno"> 920</span>  <span class="keyword">const</span> ip6_addr_t *src_addr;</div>
<div class="line"><a name="l00921"></a><span class="lineno"> 921</span>  <a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> lladdr_opt_len;</div>
<div class="line"><a name="l00922"></a><span class="lineno"> 922</span>  </div>
<div class="line"><a name="l00923"></a><span class="lineno"> 923</span>  <span class="keywordflow">if</span> (ip6_addr_isvalid(netif_ip6_addr_state(<a class="code" href="structnetif.html">netif</a>,0))) {</div>
<div class="line"><a name="l00924"></a><span class="lineno"> 924</span>  <span class="comment">/* Use link-local address as source address. */</span></div>
<div class="line"><a name="l00925"></a><span class="lineno"> 925</span>  src_addr = netif_ip6_addr(<a class="code" href="structnetif.html">netif</a>, 0);</div>
<div class="line"><a name="l00926"></a><span class="lineno"> 926</span>  <span class="comment">/* calculate option length (in 8-byte-blocks) */</span></div>
<div class="line"><a name="l00927"></a><span class="lineno"> 927</span>  lladdr_opt_len = ((<a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a> + 2) + 7) >> 3;</div>
<div class="line"><a name="l00928"></a><span class="lineno"> 928</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00929"></a><span class="lineno"> 929</span>  src_addr = IP6_ADDR_ANY6;</div>
<div class="line"><a name="l00930"></a><span class="lineno"> 930</span>  <span class="comment">/* Option "MUST NOT be included when the source IP address is the unspecified address." */</span></div>
<div class="line"><a name="l00931"></a><span class="lineno"> 931</span>  lladdr_opt_len = 0;</div>
<div class="line"><a name="l00932"></a><span class="lineno"> 932</span>  }</div>
<div class="line"><a name="l00933"></a><span class="lineno"> 933</span>  </div>
<div class="line"><a name="l00934"></a><span class="lineno"> 934</span>  <span class="comment">/* Allocate a packet. */</span></div>
<div class="line"><a name="l00935"></a><span class="lineno"> 935</span>  p = <a class="code" href="group__pbuf.html#gacfcb0a2af918658ba0afe36499c65f47">pbuf_alloc</a>(<a class="code" href="group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfafcc1e506061ba69dfa142eb6b3da5f13">PBUF_IP</a>, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structns__header.html">ns_header</a>) + (lladdr_opt_len << 3), <a class="code" href="group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab">PBUF_RAM</a>);</div>
<div class="line"><a name="l00936"></a><span class="lineno"> 936</span>  <span class="keywordflow">if</span> (p == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00937"></a><span class="lineno"> 937</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.memerr);</div>
<div class="line"><a name="l00938"></a><span class="lineno"> 938</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00939"></a><span class="lineno"> 939</span>  }</div>
<div class="line"><a name="l00940"></a><span class="lineno"> 940</span>  </div>
<div class="line"><a name="l00941"></a><span class="lineno"> 941</span>  <span class="comment">/* Set fields. */</span></div>
<div class="line"><a name="l00942"></a><span class="lineno"> 942</span>  ns_hdr = (<span class="keyword">struct </span><a class="code" href="structns__header.html">ns_header</a> *)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l00943"></a><span class="lineno"> 943</span>  </div>
<div class="line"><a name="l00944"></a><span class="lineno"> 944</span>  ns_hdr->type = <a class="code" href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a0d8d8717c6c34053d1101932c23929fe">ICMP6_TYPE_NS</a>;</div>
<div class="line"><a name="l00945"></a><span class="lineno"> 945</span>  ns_hdr->code = 0;</div>
<div class="line"><a name="l00946"></a><span class="lineno"> 946</span>  ns_hdr->chksum = 0;</div>
<div class="line"><a name="l00947"></a><span class="lineno"> 947</span>  ns_hdr->reserved = 0;</div>
<div class="line"><a name="l00948"></a><span class="lineno"> 948</span>  ip6_addr_set(&(ns_hdr->target_address), target_addr);</div>
<div class="line"><a name="l00949"></a><span class="lineno"> 949</span>  </div>
<div class="line"><a name="l00950"></a><span class="lineno"> 950</span>  <span class="keywordflow">if</span> (lladdr_opt_len != 0) {</div>
<div class="line"><a name="l00951"></a><span class="lineno"> 951</span>  <span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *lladdr_opt = (<span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *)((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structns__header.html">ns_header</a>));</div>
<div class="line"><a name="l00952"></a><span class="lineno"> 952</span>  lladdr_opt->type = <a class="code" href="prot_2nd6_8h.html#a68ce8550a20cd30093d6e79e1ca51842">ND6_OPTION_TYPE_SOURCE_LLADDR</a>;</div>
<div class="line"><a name="l00953"></a><span class="lineno"> 953</span>  lladdr_opt->length = (<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>)lladdr_opt_len;</div>
<div class="line"><a name="l00954"></a><span class="lineno"> 954</span>  <a class="code" href="lwipopts_8h.html#a8c6e3c1e4f74acb16376188dbf8909ec">SMEMCPY</a>(lladdr_opt->addr, <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#aee967965d999fc1a4c40a66709304e69">hwaddr</a>, <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a>);</div>
<div class="line"><a name="l00955"></a><span class="lineno"> 955</span>  }</div>
<div class="line"><a name="l00956"></a><span class="lineno"> 956</span>  </div>
<div class="line"><a name="l00957"></a><span class="lineno"> 957</span>  <span class="comment">/* Generate the solicited node address for the target address. */</span></div>
<div class="line"><a name="l00958"></a><span class="lineno"> 958</span>  <span class="keywordflow">if</span> (flags & ND6_SEND_FLAG_MULTICAST_DEST) {</div>
<div class="line"><a name="l00959"></a><span class="lineno"> 959</span>  ip6_addr_set_solicitednode(&multicast_address, target_addr->addr[3]);</div>
<div class="line"><a name="l00960"></a><span class="lineno"> 960</span>  target_addr = &multicast_address;</div>
<div class="line"><a name="l00961"></a><span class="lineno"> 961</span>  }</div>
<div class="line"><a name="l00962"></a><span class="lineno"> 962</span>  </div>
<div class="line"><a name="l00963"></a><span class="lineno"> 963</span> <span class="preprocessor">#if CHECKSUM_GEN_ICMP6</span></div>
<div class="line"><a name="l00964"></a><span class="lineno"> 964</span>  <a class="code" href="netif_8h.html#ad968df1b35c2fae368e087966e3bc677">IF__NETIF_CHECKSUM_ENABLED</a>(<a class="code" href="structnetif.html">netif</a>, NETIF_CHECKSUM_GEN_ICMP6) {</div>
<div class="line"><a name="l00965"></a><span class="lineno"> 965</span>  ns_hdr->chksum = ip6_chksum_pseudo(p, <a class="code" href="prot_2ip6_8h.html#ab277ee09b6e7200fc1cfe28482b886a6">IP6_NEXTH_ICMP6</a>, p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a>, src_addr,</div>
<div class="line"><a name="l00966"></a><span class="lineno"> 966</span>  target_addr);</div>
<div class="line"><a name="l00967"></a><span class="lineno"> 967</span>  }</div>
<div class="line"><a name="l00968"></a><span class="lineno"> 968</span> <span class="preprocessor">#endif </span><span class="comment">/* CHECKSUM_GEN_ICMP6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00969"></a><span class="lineno"> 969</span>  </div>
<div class="line"><a name="l00970"></a><span class="lineno"> 970</span>  <span class="comment">/* Send the packet out. */</span></div>
<div class="line"><a name="l00971"></a><span class="lineno"> 971</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.xmit);</div>
<div class="line"><a name="l00972"></a><span class="lineno"> 972</span>  ip6_output_if(p, (src_addr == IP6_ADDR_ANY6) ? <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> : src_addr, target_addr,</div>
<div class="line"><a name="l00973"></a><span class="lineno"> 973</span>  <a class="code" href="lwipopts_8h.html#a82193577b4045e1ac1533c4341a2bd79">LWIP_ICMP6_HL</a>, 0, <a class="code" href="prot_2ip6_8h.html#ab277ee09b6e7200fc1cfe28482b886a6">IP6_NEXTH_ICMP6</a>, <a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l00974"></a><span class="lineno"> 974</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l00975"></a><span class="lineno"> 975</span> }</div>
<div class="line"><a name="l00976"></a><span class="lineno"> 976</span>  </div>
<div class="line"><a name="l00984"></a><span class="lineno"> 984</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00985"></a><span class="lineno"> 985</span> nd6_send_na(<span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>, <span class="keyword">const</span> ip6_addr_t *target_addr, <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> flags)</div>
<div class="line"><a name="l00986"></a><span class="lineno"> 986</span> {</div>
<div class="line"><a name="l00987"></a><span class="lineno"> 987</span>  <span class="keyword">struct </span><a class="code" href="structna__header.html">na_header</a> *na_hdr;</div>
<div class="line"><a name="l00988"></a><span class="lineno"> 988</span>  <span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *lladdr_opt;</div>
<div class="line"><a name="l00989"></a><span class="lineno"> 989</span>  <span class="keyword">struct </span><a class="code" href="structpbuf.html">pbuf</a> *p;</div>
<div class="line"><a name="l00990"></a><span class="lineno"> 990</span>  <span class="keyword">const</span> ip6_addr_t *src_addr;</div>
<div class="line"><a name="l00991"></a><span class="lineno"> 991</span>  <span class="keyword">const</span> ip6_addr_t *dest_addr;</div>
<div class="line"><a name="l00992"></a><span class="lineno"> 992</span>  <a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> lladdr_opt_len;</div>
<div class="line"><a name="l00993"></a><span class="lineno"> 993</span>  </div>
<div class="line"><a name="l00994"></a><span class="lineno"> 994</span>  <span class="comment">/* Use link-local address as source address. */</span></div>
<div class="line"><a name="l00995"></a><span class="lineno"> 995</span>  <span class="comment">/* src_addr = netif_ip6_addr(netif, 0); */</span></div>
<div class="line"><a name="l00996"></a><span class="lineno"> 996</span>  <span class="comment">/* Use target address as source address. */</span></div>
<div class="line"><a name="l00997"></a><span class="lineno"> 997</span>  src_addr = target_addr;</div>
<div class="line"><a name="l00998"></a><span class="lineno"> 998</span>  </div>
<div class="line"><a name="l00999"></a><span class="lineno"> 999</span>  <span class="comment">/* Allocate a packet. */</span></div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>  lladdr_opt_len = ((<a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a> + 2) >> 3) + (((<a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a> + 2) & 0x07) ? 1 : 0);</div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>  p = <a class="code" href="group__pbuf.html#gacfcb0a2af918658ba0afe36499c65f47">pbuf_alloc</a>(<a class="code" href="group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfafcc1e506061ba69dfa142eb6b3da5f13">PBUF_IP</a>, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structna__header.html">na_header</a>) + (lladdr_opt_len << 3), <a class="code" href="group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab">PBUF_RAM</a>);</div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>  <span class="keywordflow">if</span> (p == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.memerr);</div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>  }</div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>  </div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>  <span class="comment">/* Set fields. */</span></div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>  na_hdr = (<span class="keyword">struct </span><a class="code" href="structna__header.html">na_header</a> *)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>  lladdr_opt = (<span class="keyword">struct</span> <a class="code" href="structlladdr__option.html">lladdr_option</a> *)((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structna__header.html">na_header</a>));</div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>  </div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>  na_hdr->type = <a class="code" href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a1f99d333f425c28d3840e029cc9c46f3">ICMP6_TYPE_NA</a>;</div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>  na_hdr->code = 0;</div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>  na_hdr->chksum = 0;</div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>  na_hdr->flags = flags & 0xf0;</div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>  na_hdr->reserved[0] = 0;</div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>  na_hdr->reserved[1] = 0;</div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>  na_hdr->reserved[2] = 0;</div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>  ip6_addr_set(&(na_hdr->target_address), target_addr);</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>  </div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>  lladdr_opt->type = <a class="code" href="prot_2nd6_8h.html#a787edcc6357686798581dd714d68c8c1">ND6_OPTION_TYPE_TARGET_LLADDR</a>;</div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>  lladdr_opt->length = (<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>)lladdr_opt_len;</div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>  <a class="code" href="lwipopts_8h.html#a8c6e3c1e4f74acb16376188dbf8909ec">SMEMCPY</a>(lladdr_opt->addr, <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#aee967965d999fc1a4c40a66709304e69">hwaddr</a>, <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a>);</div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>  </div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>  <span class="comment">/* Generate the solicited node address for the target address. */</span></div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>  <span class="keywordflow">if</span> (flags & ND6_SEND_FLAG_MULTICAST_DEST) {</div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>  ip6_addr_set_solicitednode(&multicast_address, target_addr->addr[3]);</div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>  dest_addr = &multicast_address;</div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (flags & ND6_SEND_FLAG_ALLNODES_DEST) {</div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>  ip6_addr_set_allnodes_linklocal(&multicast_address);</div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>  dest_addr = &multicast_address;</div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>  dest_addr = ip6_current_src_addr();</div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>  }</div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>  </div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span> <span class="preprocessor">#if CHECKSUM_GEN_ICMP6</span></div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>  <a class="code" href="netif_8h.html#ad968df1b35c2fae368e087966e3bc677">IF__NETIF_CHECKSUM_ENABLED</a>(<a class="code" href="structnetif.html">netif</a>, NETIF_CHECKSUM_GEN_ICMP6) {</div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>  na_hdr->chksum = ip6_chksum_pseudo(p, <a class="code" href="prot_2ip6_8h.html#ab277ee09b6e7200fc1cfe28482b886a6">IP6_NEXTH_ICMP6</a>, p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a>, src_addr,</div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>  dest_addr);</div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>  }</div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span> <span class="preprocessor">#endif </span><span class="comment">/* CHECKSUM_GEN_ICMP6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>  </div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>  <span class="comment">/* Send the packet out. */</span></div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.xmit);</div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>  ip6_output_if(p, src_addr, dest_addr,</div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>  <a class="code" href="lwipopts_8h.html#a82193577b4045e1ac1533c4341a2bd79">LWIP_ICMP6_HL</a>, 0, <a class="code" href="prot_2ip6_8h.html#ab277ee09b6e7200fc1cfe28482b886a6">IP6_NEXTH_ICMP6</a>, <a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span> }</div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>  </div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span> <span class="preprocessor">#if LWIP_IPV6_SEND_ROUTER_SOLICIT</span></div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>  </div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span> <span class="keyword">static</span> <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a></div>
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span> nd6_send_rs(<span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>)</div>
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span> {</div>
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>  <span class="keyword">struct </span><a class="code" href="structrs__header.html">rs_header</a> *rs_hdr;</div>
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>  <span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *lladdr_opt;</div>
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>  <span class="keyword">struct </span><a class="code" href="structpbuf.html">pbuf</a> *p;</div>
<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>  <span class="keyword">const</span> ip6_addr_t *src_addr;</div>
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>  <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> err;</div>
<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>  <a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> lladdr_opt_len = 0;</div>
<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>  </div>
<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>  <span class="comment">/* Link-local source address, or unspecified address? */</span></div>
<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>  <span class="keywordflow">if</span> (ip6_addr_isvalid(netif_ip6_addr_state(<a class="code" href="structnetif.html">netif</a>, 0))) {</div>
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>  src_addr = netif_ip6_addr(<a class="code" href="structnetif.html">netif</a>, 0);</div>
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>  src_addr = IP6_ADDR_ANY6;</div>
<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>  }</div>
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>  </div>
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>  <span class="comment">/* Generate the all routers target address. */</span></div>
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>  ip6_addr_set_allrouters_linklocal(&multicast_address);</div>
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>  </div>
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>  <span class="comment">/* Allocate a packet. */</span></div>
<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>  <span class="keywordflow">if</span> (src_addr != IP6_ADDR_ANY6) {</div>
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>  lladdr_opt_len = ((<a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a> + 2) >> 3) + (((<a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a> + 2) & 0x07) ? 1 : 0);</div>
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>  }</div>
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>  p = <a class="code" href="group__pbuf.html#gacfcb0a2af918658ba0afe36499c65f47">pbuf_alloc</a>(<a class="code" href="group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfafcc1e506061ba69dfa142eb6b3da5f13">PBUF_IP</a>, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structrs__header.html">rs_header</a>) + (lladdr_opt_len << 3), <a class="code" href="group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab">PBUF_RAM</a>);</div>
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>  <span class="keywordflow">if</span> (p == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.memerr);</div>
<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>  <span class="keywordflow">return</span> <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadca05c91366f1b5203a5db9a241b415cd63">ERR_BUF</a>;</div>
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>  }</div>
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>  </div>
<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>  <span class="comment">/* Set fields. */</span></div>
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>  rs_hdr = (<span class="keyword">struct </span><a class="code" href="structrs__header.html">rs_header</a> *)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a>;</div>
<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>  </div>
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>  rs_hdr->type = <a class="code" href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a670d95494c9282f646ac442d81d9a780">ICMP6_TYPE_RS</a>;</div>
<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>  rs_hdr->code = 0;</div>
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>  rs_hdr->chksum = 0;</div>
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>  rs_hdr->reserved = 0;</div>
<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>  </div>
<div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>  if (src_addr != IP6_ADDR_ANY6) {</div>
<div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>  <span class="comment">/* Include our hw address. */</span></div>
<div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>  lladdr_opt = (<span class="keyword">struct </span><a class="code" href="structlladdr__option.html">lladdr_option</a> *)((<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)p-><a class="code" href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">payload</a> + <span class="keyword">sizeof</span>(<span class="keyword">struct </span><a class="code" href="structrs__header.html">rs_header</a>));</div>
<div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>  lladdr_opt->type = <a class="code" href="prot_2nd6_8h.html#a68ce8550a20cd30093d6e79e1ca51842">ND6_OPTION_TYPE_SOURCE_LLADDR</a>;</div>
<div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>  lladdr_opt->length = (<a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>)lladdr_opt_len;</div>
<div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>  <a class="code" href="lwipopts_8h.html#a8c6e3c1e4f74acb16376188dbf8909ec">SMEMCPY</a>(lladdr_opt->addr, <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#aee967965d999fc1a4c40a66709304e69">hwaddr</a>, <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">hwaddr_len</a>);</div>
<div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>  }</div>
<div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>  </div>
<div class="line"><a name="l01101"></a><span class="lineno"> 1101</span> <span class="preprocessor">#if CHECKSUM_GEN_ICMP6</span></div>
<div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>  <a class="code" href="netif_8h.html#ad968df1b35c2fae368e087966e3bc677">IF__NETIF_CHECKSUM_ENABLED</a>(<a class="code" href="structnetif.html">netif</a>, NETIF_CHECKSUM_GEN_ICMP6) {</div>
<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>  rs_hdr->chksum = ip6_chksum_pseudo(p, <a class="code" href="prot_2ip6_8h.html#ab277ee09b6e7200fc1cfe28482b886a6">IP6_NEXTH_ICMP6</a>, p-><a class="code" href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">len</a>, src_addr,</div>
<div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>  &multicast_address);</div>
<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>  }</div>
<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span> <span class="preprocessor">#endif </span><span class="comment">/* CHECKSUM_GEN_ICMP6 */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>  </div>
<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>  <span class="comment">/* Send the packet out. */</span></div>
<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.xmit);</div>
<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>  </div>
<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>  err = ip6_output_if(p, (src_addr == IP6_ADDR_ANY6) ? <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> : src_addr, &multicast_address,</div>
<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>  <a class="code" href="lwipopts_8h.html#a82193577b4045e1ac1533c4341a2bd79">LWIP_ICMP6_HL</a>, 0, <a class="code" href="prot_2ip6_8h.html#ab277ee09b6e7200fc1cfe28482b886a6">IP6_NEXTH_ICMP6</a>, <a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>  </div>
<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>  <span class="keywordflow">return</span> err;</div>
<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span> }</div>
<div class="line"><a name="l01117"></a><span class="lineno"> 1117</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_SEND_ROUTER_SOLICIT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>  </div>
<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span> nd6_find_neighbor_cache_entry(<span class="keyword">const</span> ip6_addr_t *ip6addr)</div>
<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span> {</div>
<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>; i++) {</div>
<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>  <span class="keywordflow">if</span> (ip6_addr_cmp(ip6addr, &(neighbor_cache[i].next_hop_address))) {</div>
<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>  }</div>
<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>  }</div>
<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span> }</div>
<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>  </div>
<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span> nd6_new_neighbor_cache_entry(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span> {</div>
<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> j;</div>
<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> time;</div>
<div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>  </div>
<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>  </div>
<div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>  <span class="comment">/* First, try to find an empty entry. */</span></div>
<div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>; i++) {</div>
<div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>  <span class="keywordflow">if</span> (neighbor_cache[i].state == ND6_NO_ENTRY) {</div>
<div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>  }</div>
<div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>  }</div>
<div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>  </div>
<div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>  <span class="comment">/* We need to recycle an entry. in general, do not recycle if it is a router. */</span></div>
<div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>  </div>
<div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>  <span class="comment">/* Next, try to find a Stale entry. */</span></div>
<div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>; i++) {</div>
<div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>  <span class="keywordflow">if</span> ((neighbor_cache[i].state == ND6_STALE) &&</div>
<div class="line"><a name="l01167"></a><span class="lineno"> 1167</span>  (!neighbor_cache[i].isrouter)) {</div>
<div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>  nd6_free_neighbor_cache_entry(i);</div>
<div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>  }</div>
<div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>  }</div>
<div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>  </div>
<div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>  <span class="comment">/* Next, try to find a Probe entry. */</span></div>
<div class="line"><a name="l01174"></a><span class="lineno"> 1174</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>; i++) {</div>
<div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>  <span class="keywordflow">if</span> ((neighbor_cache[i].state == ND6_PROBE) &&</div>
<div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>  (!neighbor_cache[i].isrouter)) {</div>
<div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>  nd6_free_neighbor_cache_entry(i);</div>
<div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01179"></a><span class="lineno"> 1179</span>  }</div>
<div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>  }</div>
<div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>  </div>
<div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>  <span class="comment">/* Next, try to find a Delayed entry. */</span></div>
<div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>; i++) {</div>
<div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>  <span class="keywordflow">if</span> ((neighbor_cache[i].state == ND6_DELAY) &&</div>
<div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>  (!neighbor_cache[i].isrouter)) {</div>
<div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>  nd6_free_neighbor_cache_entry(i);</div>
<div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>  }</div>
<div class="line"><a name="l01189"></a><span class="lineno"> 1189</span>  }</div>
<div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>  </div>
<div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>  <span class="comment">/* Next, try to find the oldest reachable entry. */</span></div>
<div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>  time = 0xfffffffful;</div>
<div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>  j = -1;</div>
<div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>; i++) {</div>
<div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>  <span class="keywordflow">if</span> ((neighbor_cache[i].state == ND6_REACHABLE) &&</div>
<div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>  (!neighbor_cache[i].isrouter)) {</div>
<div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>  <span class="keywordflow">if</span> (neighbor_cache[i].counter.reachable_time < time) {</div>
<div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>  j = i;</div>
<div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>  time = neighbor_cache[i].counter.reachable_time;</div>
<div class="line"><a name="l01200"></a><span class="lineno"> 1200</span>  }</div>
<div class="line"><a name="l01201"></a><span class="lineno"> 1201</span>  }</div>
<div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>  }</div>
<div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>  <span class="keywordflow">if</span> (j >= 0) {</div>
<div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>  nd6_free_neighbor_cache_entry(j);</div>
<div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>  <span class="keywordflow">return</span> j;</div>
<div class="line"><a name="l01206"></a><span class="lineno"> 1206</span>  }</div>
<div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>  </div>
<div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>  <span class="comment">/* Next, find oldest incomplete entry without queued packets. */</span></div>
<div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>  time = 0;</div>
<div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>  j = -1;</div>
<div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>; i++) {</div>
<div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>  <span class="keywordflow">if</span> (</div>
<div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>  (neighbor_cache[i].q == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) &&</div>
<div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>  (neighbor_cache[i].state == ND6_INCOMPLETE) &&</div>
<div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>  (!neighbor_cache[i].isrouter)) {</div>
<div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>  <span class="keywordflow">if</span> (neighbor_cache[i].counter.probes_sent >= time) {</div>
<div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>  j = i;</div>
<div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>  time = neighbor_cache[i].counter.probes_sent;</div>
<div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>  }</div>
<div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>  }</div>
<div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>  }</div>
<div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>  <span class="keywordflow">if</span> (j >= 0) {</div>
<div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>  nd6_free_neighbor_cache_entry(j);</div>
<div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>  <span class="keywordflow">return</span> j;</div>
<div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>  }</div>
<div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>  </div>
<div class="line"><a name="l01227"></a><span class="lineno"> 1227</span>  <span class="comment">/* Next, find oldest incomplete entry with queued packets. */</span></div>
<div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>  time = 0;</div>
<div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>  j = -1;</div>
<div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>; i++) {</div>
<div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>  <span class="keywordflow">if</span> ((neighbor_cache[i].state == ND6_INCOMPLETE) &&</div>
<div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>  (!neighbor_cache[i].isrouter)) {</div>
<div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>  <span class="keywordflow">if</span> (neighbor_cache[i].counter.probes_sent >= time) {</div>
<div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>  j = i;</div>
<div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>  time = neighbor_cache[i].counter.probes_sent;</div>
<div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>  }</div>
<div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>  }</div>
<div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>  }</div>
<div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>  <span class="keywordflow">if</span> (j >= 0) {</div>
<div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>  nd6_free_neighbor_cache_entry(j);</div>
<div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>  <span class="keywordflow">return</span> j;</div>
<div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>  }</div>
<div class="line"><a name="l01243"></a><span class="lineno"> 1243</span>  </div>
<div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>  <span class="comment">/* No more entries to try. */</span></div>
<div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l01246"></a><span class="lineno"> 1246</span> }</div>
<div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>  </div>
<div class="line"><a name="l01254"></a><span class="lineno"> 1254</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l01255"></a><span class="lineno"> 1255</span> nd6_free_neighbor_cache_entry(<a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i)</div>
<div class="line"><a name="l01256"></a><span class="lineno"> 1256</span> {</div>
<div class="line"><a name="l01257"></a><span class="lineno"> 1257</span>  <span class="keywordflow">if</span> ((i < 0) || (i >= <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>)) {</div>
<div class="line"><a name="l01258"></a><span class="lineno"> 1258</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01259"></a><span class="lineno"> 1259</span>  }</div>
<div class="line"><a name="l01260"></a><span class="lineno"> 1260</span>  <span class="keywordflow">if</span> (neighbor_cache[i].isrouter) {</div>
<div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>  <span class="comment">/* isrouter needs to be cleared before deleting a neighbor cache entry */</span></div>
<div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>  }</div>
<div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>  </div>
<div class="line"><a name="l01265"></a><span class="lineno"> 1265</span>  <span class="comment">/* Free any queued packets. */</span></div>
<div class="line"><a name="l01266"></a><span class="lineno"> 1266</span>  <span class="keywordflow">if</span> (neighbor_cache[i].q != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>  nd6_free_q(neighbor_cache[i].q);</div>
<div class="line"><a name="l01268"></a><span class="lineno"> 1268</span>  neighbor_cache[i].q = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01269"></a><span class="lineno"> 1269</span>  }</div>
<div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>  </div>
<div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>  neighbor_cache[i].state = ND6_NO_ENTRY;</div>
<div class="line"><a name="l01272"></a><span class="lineno"> 1272</span>  neighbor_cache[i].isrouter = 0;</div>
<div class="line"><a name="l01273"></a><span class="lineno"> 1273</span>  neighbor_cache[i].netif = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>  neighbor_cache[i].counter.reachable_time = 0;</div>
<div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>  ip6_addr_set_zero(&(neighbor_cache[i].next_hop_address));</div>
<div class="line"><a name="l01276"></a><span class="lineno"> 1276</span> }</div>
<div class="line"><a name="l01277"></a><span class="lineno"> 1277</span>  </div>
<div class="line"><a name="l01285"></a><span class="lineno"> 1285</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01286"></a><span class="lineno"> 1286</span> nd6_find_destination_cache_entry(<span class="keyword">const</span> ip6_addr_t *ip6addr)</div>
<div class="line"><a name="l01287"></a><span class="lineno"> 1287</span> {</div>
<div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#acad118b1ae886e80137a1d4f0fb19672">LWIP_ND6_NUM_DESTINATIONS</a>; i++) {</div>
<div class="line"><a name="l01290"></a><span class="lineno"> 1290</span>  <span class="keywordflow">if</span> (ip6_addr_cmp(ip6addr, &(destination_cache[i].destination_addr))) {</div>
<div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01292"></a><span class="lineno"> 1292</span>  }</div>
<div class="line"><a name="l01293"></a><span class="lineno"> 1293</span>  }</div>
<div class="line"><a name="l01294"></a><span class="lineno"> 1294</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l01295"></a><span class="lineno"> 1295</span> }</div>
<div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>  </div>
<div class="line"><a name="l01304"></a><span class="lineno"> 1304</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01305"></a><span class="lineno"> 1305</span> nd6_new_destination_cache_entry(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l01306"></a><span class="lineno"> 1306</span> {</div>
<div class="line"><a name="l01307"></a><span class="lineno"> 1307</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i, j;</div>
<div class="line"><a name="l01308"></a><span class="lineno"> 1308</span>  <a class="code" href="group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> age;</div>
<div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>  </div>
<div class="line"><a name="l01310"></a><span class="lineno"> 1310</span>  <span class="comment">/* Find an empty entry. */</span></div>
<div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#acad118b1ae886e80137a1d4f0fb19672">LWIP_ND6_NUM_DESTINATIONS</a>; i++) {</div>
<div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>  <span class="keywordflow">if</span> (ip6_addr_isany(&(destination_cache[i].destination_addr))) {</div>
<div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>  }</div>
<div class="line"><a name="l01315"></a><span class="lineno"> 1315</span>  }</div>
<div class="line"><a name="l01316"></a><span class="lineno"> 1316</span>  </div>
<div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>  <span class="comment">/* Find oldest entry. */</span></div>
<div class="line"><a name="l01318"></a><span class="lineno"> 1318</span>  age = 0;</div>
<div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>  j = <a class="code" href="lwipopts_8h.html#acad118b1ae886e80137a1d4f0fb19672">LWIP_ND6_NUM_DESTINATIONS</a> - 1;</div>
<div class="line"><a name="l01320"></a><span class="lineno"> 1320</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#acad118b1ae886e80137a1d4f0fb19672">LWIP_ND6_NUM_DESTINATIONS</a>; i++) {</div>
<div class="line"><a name="l01321"></a><span class="lineno"> 1321</span>  <span class="keywordflow">if</span> (destination_cache[i].age > age) {</div>
<div class="line"><a name="l01322"></a><span class="lineno"> 1322</span>  j = i;</div>
<div class="line"><a name="l01323"></a><span class="lineno"> 1323</span>  }</div>
<div class="line"><a name="l01324"></a><span class="lineno"> 1324</span>  }</div>
<div class="line"><a name="l01325"></a><span class="lineno"> 1325</span>  </div>
<div class="line"><a name="l01326"></a><span class="lineno"> 1326</span>  <span class="keywordflow">return</span> j;</div>
<div class="line"><a name="l01327"></a><span class="lineno"> 1327</span> }</div>
<div class="line"><a name="l01328"></a><span class="lineno"> 1328</span>  </div>
<div class="line"><a name="l01335"></a><span class="lineno"> 1335</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l01336"></a><span class="lineno"> 1336</span> nd6_clear_destination_cache(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l01337"></a><span class="lineno"> 1337</span> {</div>
<div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>  <span class="keywordtype">int</span> i;</div>
<div class="line"><a name="l01339"></a><span class="lineno"> 1339</span>  </div>
<div class="line"><a name="l01340"></a><span class="lineno"> 1340</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#acad118b1ae886e80137a1d4f0fb19672">LWIP_ND6_NUM_DESTINATIONS</a>; i++) {</div>
<div class="line"><a name="l01341"></a><span class="lineno"> 1341</span>  ip6_addr_set_any(&destination_cache[i].destination_addr);</div>
<div class="line"><a name="l01342"></a><span class="lineno"> 1342</span>  }</div>
<div class="line"><a name="l01343"></a><span class="lineno"> 1343</span> }</div>
<div class="line"><a name="l01344"></a><span class="lineno"> 1344</span>  </div>
<div class="line"><a name="l01351"></a><span class="lineno"> 1351</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01352"></a><span class="lineno"> 1352</span> nd6_is_prefix_in_netif(<span class="keyword">const</span> ip6_addr_t *ip6addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>)</div>
<div class="line"><a name="l01353"></a><span class="lineno"> 1353</span> {</div>
<div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01355"></a><span class="lineno"> 1355</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ad9cc576b5951f1b5e1c2b0d0bb831d9a">LWIP_ND6_NUM_PREFIXES</a>; i++) {</div>
<div class="line"><a name="l01356"></a><span class="lineno"> 1356</span>  <span class="keywordflow">if</span> ((prefix_list[i].<a class="code" href="structnetif.html">netif</a> == <a class="code" href="structnetif.html">netif</a>) &&</div>
<div class="line"><a name="l01357"></a><span class="lineno"> 1357</span>  (prefix_list[i].invalidation_timer > 0) &&</div>
<div class="line"><a name="l01358"></a><span class="lineno"> 1358</span>  ip6_addr_netcmp(ip6addr, &(prefix_list[i].prefix))) {</div>
<div class="line"><a name="l01359"></a><span class="lineno"> 1359</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l01360"></a><span class="lineno"> 1360</span>  }</div>
<div class="line"><a name="l01361"></a><span class="lineno"> 1361</span>  }</div>
<div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>  <span class="comment">/* Check to see if address prefix matches a (manually?) configured address. */</span></div>
<div class="line"><a name="l01363"></a><span class="lineno"> 1363</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#a16c1b672604bfb0a66a6aeeb854589d3">LWIP_IPV6_NUM_ADDRESSES</a>; i++) {</div>
<div class="line"><a name="l01364"></a><span class="lineno"> 1364</span>  <span class="keywordflow">if</span> (ip6_addr_isvalid(netif_ip6_addr_state(<a class="code" href="structnetif.html">netif</a>, i)) &&</div>
<div class="line"><a name="l01365"></a><span class="lineno"> 1365</span>  ip6_addr_netcmp(ip6addr, netif_ip6_addr(<a class="code" href="structnetif.html">netif</a>, i))) {</div>
<div class="line"><a name="l01366"></a><span class="lineno"> 1366</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l01367"></a><span class="lineno"> 1367</span>  }</div>
<div class="line"><a name="l01368"></a><span class="lineno"> 1368</span>  }</div>
<div class="line"><a name="l01369"></a><span class="lineno"> 1369</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l01370"></a><span class="lineno"> 1370</span> }</div>
<div class="line"><a name="l01371"></a><span class="lineno"> 1371</span>  </div>
<div class="line"><a name="l01380"></a><span class="lineno"> 1380</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01381"></a><span class="lineno"> 1381</span> nd6_select_router(<span class="keyword">const</span> ip6_addr_t *ip6addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>)</div>
<div class="line"><a name="l01382"></a><span class="lineno"> 1382</span> {</div>
<div class="line"><a name="l01383"></a><span class="lineno"> 1383</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01384"></a><span class="lineno"> 1384</span>  <span class="comment">/* last_router is used for round-robin router selection (as recommended</span></div>
<div class="line"><a name="l01385"></a><span class="lineno"> 1385</span> <span class="comment"> * in RFC). This is more robust in case one router is not reachable,</span></div>
<div class="line"><a name="l01386"></a><span class="lineno"> 1386</span> <span class="comment"> * we are not stuck trying to resolve it. */</span></div>
<div class="line"><a name="l01387"></a><span class="lineno"> 1387</span>  <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> last_router;</div>
<div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>  (void)ip6addr; <span class="comment">/* @todo match preferred routes!! (must implement ND6_OPTION_TYPE_ROUTE_INFO) */</span></div>
<div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>  </div>
<div class="line"><a name="l01390"></a><span class="lineno"> 1390</span>  <span class="comment">/* @todo: implement default router preference */</span></div>
<div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>  </div>
<div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>  <span class="comment">/* Look for reachable routers. */</span></div>
<div class="line"><a name="l01393"></a><span class="lineno"> 1393</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>; i++) {</div>
<div class="line"><a name="l01394"></a><span class="lineno"> 1394</span>  <span class="keywordflow">if</span> (++last_router >= <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>) {</div>
<div class="line"><a name="l01395"></a><span class="lineno"> 1395</span>  last_router = 0;</div>
<div class="line"><a name="l01396"></a><span class="lineno"> 1396</span>  }</div>
<div class="line"><a name="l01397"></a><span class="lineno"> 1397</span>  <span class="keywordflow">if</span> ((default_router_list[i].neighbor_entry != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) &&</div>
<div class="line"><a name="l01398"></a><span class="lineno"> 1398</span>  (<a class="code" href="structnetif.html">netif</a> != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> ? <a class="code" href="structnetif.html">netif</a> == default_router_list[i].neighbor_entry->netif : 1) &&</div>
<div class="line"><a name="l01399"></a><span class="lineno"> 1399</span>  (default_router_list[i].invalidation_timer > 0) &&</div>
<div class="line"><a name="l01400"></a><span class="lineno"> 1400</span>  (default_router_list[i].neighbor_entry->state == ND6_REACHABLE)) {</div>
<div class="line"><a name="l01401"></a><span class="lineno"> 1401</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01402"></a><span class="lineno"> 1402</span>  }</div>
<div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>  }</div>
<div class="line"><a name="l01404"></a><span class="lineno"> 1404</span>  </div>
<div class="line"><a name="l01405"></a><span class="lineno"> 1405</span>  <span class="comment">/* Look for router in other reachability states, but still valid according to timer. */</span></div>
<div class="line"><a name="l01406"></a><span class="lineno"> 1406</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>; i++) {</div>
<div class="line"><a name="l01407"></a><span class="lineno"> 1407</span>  <span class="keywordflow">if</span> (++last_router >= <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>) {</div>
<div class="line"><a name="l01408"></a><span class="lineno"> 1408</span>  last_router = 0;</div>
<div class="line"><a name="l01409"></a><span class="lineno"> 1409</span>  }</div>
<div class="line"><a name="l01410"></a><span class="lineno"> 1410</span>  <span class="keywordflow">if</span> ((default_router_list[i].neighbor_entry != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) &&</div>
<div class="line"><a name="l01411"></a><span class="lineno"> 1411</span>  (<a class="code" href="structnetif.html">netif</a> != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> ? <a class="code" href="structnetif.html">netif</a> == default_router_list[i].neighbor_entry->netif : 1) &&</div>
<div class="line"><a name="l01412"></a><span class="lineno"> 1412</span>  (default_router_list[i].invalidation_timer > 0)) {</div>
<div class="line"><a name="l01413"></a><span class="lineno"> 1413</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01414"></a><span class="lineno"> 1414</span>  }</div>
<div class="line"><a name="l01415"></a><span class="lineno"> 1415</span>  }</div>
<div class="line"><a name="l01416"></a><span class="lineno"> 1416</span>  </div>
<div class="line"><a name="l01417"></a><span class="lineno"> 1417</span>  <span class="comment">/* Look for any router for which we have any information at all. */</span></div>
<div class="line"><a name="l01418"></a><span class="lineno"> 1418</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>; i++) {</div>
<div class="line"><a name="l01419"></a><span class="lineno"> 1419</span>  <span class="keywordflow">if</span> (++last_router >= <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>) {</div>
<div class="line"><a name="l01420"></a><span class="lineno"> 1420</span>  last_router = 0;</div>
<div class="line"><a name="l01421"></a><span class="lineno"> 1421</span>  }</div>
<div class="line"><a name="l01422"></a><span class="lineno"> 1422</span>  <span class="keywordflow">if</span> (default_router_list[i].neighbor_entry != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> &&</div>
<div class="line"><a name="l01423"></a><span class="lineno"> 1423</span>  (<a class="code" href="structnetif.html">netif</a> != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> ? <a class="code" href="structnetif.html">netif</a> == default_router_list[i].neighbor_entry->netif : 1)) {</div>
<div class="line"><a name="l01424"></a><span class="lineno"> 1424</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01425"></a><span class="lineno"> 1425</span>  }</div>
<div class="line"><a name="l01426"></a><span class="lineno"> 1426</span>  }</div>
<div class="line"><a name="l01427"></a><span class="lineno"> 1427</span>  </div>
<div class="line"><a name="l01428"></a><span class="lineno"> 1428</span>  <span class="comment">/* no suitable router found. */</span></div>
<div class="line"><a name="l01429"></a><span class="lineno"> 1429</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l01430"></a><span class="lineno"> 1430</span> }</div>
<div class="line"><a name="l01431"></a><span class="lineno"> 1431</span>  </div>
<div class="line"><a name="l01441"></a><span class="lineno"> 1441</span> <span class="keyword">struct </span><a class="code" href="structnetif.html">netif</a> *</div>
<div class="line"><a name="l01442"></a><span class="lineno"> 1442</span> nd6_find_route(<span class="keyword">const</span> ip6_addr_t *ip6addr)</div>
<div class="line"><a name="l01443"></a><span class="lineno"> 1443</span> {</div>
<div class="line"><a name="l01444"></a><span class="lineno"> 1444</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01445"></a><span class="lineno"> 1445</span>  </div>
<div class="line"><a name="l01446"></a><span class="lineno"> 1446</span>  i = nd6_select_router(ip6addr, <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l01447"></a><span class="lineno"> 1447</span>  <span class="keywordflow">if</span> (i >= 0) {</div>
<div class="line"><a name="l01448"></a><span class="lineno"> 1448</span>  <span class="keywordflow">if</span> (default_router_list[i].neighbor_entry != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01449"></a><span class="lineno"> 1449</span>  <span class="keywordflow">return</span> default_router_list[i].neighbor_entry->netif; <span class="comment">/* may be NULL */</span></div>
<div class="line"><a name="l01450"></a><span class="lineno"> 1450</span>  }</div>
<div class="line"><a name="l01451"></a><span class="lineno"> 1451</span>  }</div>
<div class="line"><a name="l01452"></a><span class="lineno"> 1452</span>  </div>
<div class="line"><a name="l01453"></a><span class="lineno"> 1453</span>  <span class="keywordflow">return</span> <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01454"></a><span class="lineno"> 1454</span> }</div>
<div class="line"><a name="l01455"></a><span class="lineno"> 1455</span>  </div>
<div class="line"><a name="l01463"></a><span class="lineno"> 1463</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01464"></a><span class="lineno"> 1464</span> nd6_get_router(<span class="keyword">const</span> ip6_addr_t *router_addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>)</div>
<div class="line"><a name="l01465"></a><span class="lineno"> 1465</span> {</div>
<div class="line"><a name="l01466"></a><span class="lineno"> 1466</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01467"></a><span class="lineno"> 1467</span>  </div>
<div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>  <span class="comment">/* Look for router. */</span></div>
<div class="line"><a name="l01469"></a><span class="lineno"> 1469</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>; i++) {</div>
<div class="line"><a name="l01470"></a><span class="lineno"> 1470</span>  <span class="keywordflow">if</span> ((default_router_list[i].neighbor_entry != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) &&</div>
<div class="line"><a name="l01471"></a><span class="lineno"> 1471</span>  ((<a class="code" href="structnetif.html">netif</a> != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) ? <a class="code" href="structnetif.html">netif</a> == default_router_list[i].neighbor_entry->netif : 1) &&</div>
<div class="line"><a name="l01472"></a><span class="lineno"> 1472</span>  ip6_addr_cmp(router_addr, &(default_router_list[i].neighbor_entry->next_hop_address))) {</div>
<div class="line"><a name="l01473"></a><span class="lineno"> 1473</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>  }</div>
<div class="line"><a name="l01475"></a><span class="lineno"> 1475</span>  }</div>
<div class="line"><a name="l01476"></a><span class="lineno"> 1476</span>  </div>
<div class="line"><a name="l01477"></a><span class="lineno"> 1477</span>  <span class="comment">/* router not found. */</span></div>
<div class="line"><a name="l01478"></a><span class="lineno"> 1478</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l01479"></a><span class="lineno"> 1479</span> }</div>
<div class="line"><a name="l01480"></a><span class="lineno"> 1480</span>  </div>
<div class="line"><a name="l01488"></a><span class="lineno"> 1488</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01489"></a><span class="lineno"> 1489</span> nd6_new_router(<span class="keyword">const</span> ip6_addr_t *router_addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>)</div>
<div class="line"><a name="l01490"></a><span class="lineno"> 1490</span> {</div>
<div class="line"><a name="l01491"></a><span class="lineno"> 1491</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> router_index;</div>
<div class="line"><a name="l01492"></a><span class="lineno"> 1492</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> free_router_index;</div>
<div class="line"><a name="l01493"></a><span class="lineno"> 1493</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> neighbor_index;</div>
<div class="line"><a name="l01494"></a><span class="lineno"> 1494</span>  </div>
<div class="line"><a name="l01495"></a><span class="lineno"> 1495</span>  <span class="comment">/* Do we have a neighbor entry for this router? */</span></div>
<div class="line"><a name="l01496"></a><span class="lineno"> 1496</span>  neighbor_index = nd6_find_neighbor_cache_entry(router_addr);</div>
<div class="line"><a name="l01497"></a><span class="lineno"> 1497</span>  <span class="keywordflow">if</span> (neighbor_index < 0) {</div>
<div class="line"><a name="l01498"></a><span class="lineno"> 1498</span>  <span class="comment">/* Create a neighbor entry for this router. */</span></div>
<div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>  neighbor_index = nd6_new_neighbor_cache_entry();</div>
<div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>  <span class="keywordflow">if</span> (neighbor_index < 0) {</div>
<div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>  <span class="comment">/* Could not create neighbor entry for this router. */</span></div>
<div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>  }</div>
<div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>  ip6_addr_set(&(neighbor_cache[neighbor_index].next_hop_address), router_addr);</div>
<div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>  neighbor_cache[neighbor_index].netif = <a class="code" href="structnetif.html">netif</a>;</div>
<div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>  neighbor_cache[neighbor_index].q = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>  neighbor_cache[neighbor_index].state = ND6_INCOMPLETE;</div>
<div class="line"><a name="l01508"></a><span class="lineno"> 1508</span>  neighbor_cache[neighbor_index].counter.probes_sent = 1;</div>
<div class="line"><a name="l01509"></a><span class="lineno"> 1509</span>  nd6_send_neighbor_cache_probe(&neighbor_cache[neighbor_index], ND6_SEND_FLAG_MULTICAST_DEST);</div>
<div class="line"><a name="l01510"></a><span class="lineno"> 1510</span>  }</div>
<div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>  </div>
<div class="line"><a name="l01512"></a><span class="lineno"> 1512</span>  <span class="comment">/* Mark neighbor as router. */</span></div>
<div class="line"><a name="l01513"></a><span class="lineno"> 1513</span>  neighbor_cache[neighbor_index].isrouter = 1;</div>
<div class="line"><a name="l01514"></a><span class="lineno"> 1514</span>  </div>
<div class="line"><a name="l01515"></a><span class="lineno"> 1515</span>  <span class="comment">/* Look for empty entry. */</span></div>
<div class="line"><a name="l01516"></a><span class="lineno"> 1516</span>  free_router_index = <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>;</div>
<div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>  <span class="keywordflow">for</span> (router_index = <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a> - 1; router_index >= 0; router_index--) {</div>
<div class="line"><a name="l01518"></a><span class="lineno"> 1518</span>  <span class="comment">/* check if router already exists (this is a special case for 2 netifs on the same subnet</span></div>
<div class="line"><a name="l01519"></a><span class="lineno"> 1519</span> <span class="comment"> - e.g. wifi and cable) */</span></div>
<div class="line"><a name="l01520"></a><span class="lineno"> 1520</span>  <span class="keywordflow">if</span>(default_router_list[router_index].neighbor_entry == &(neighbor_cache[neighbor_index])){ </div>
<div class="line"><a name="l01521"></a><span class="lineno"> 1521</span>  <span class="keywordflow">return</span> router_index; </div>
<div class="line"><a name="l01522"></a><span class="lineno"> 1522</span>  } </div>
<div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>  <span class="keywordflow">if</span> (default_router_list[router_index].neighbor_entry == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01524"></a><span class="lineno"> 1524</span>  <span class="comment">/* remember lowest free index to create a new entry */</span></div>
<div class="line"><a name="l01525"></a><span class="lineno"> 1525</span>  free_router_index = router_index;</div>
<div class="line"><a name="l01526"></a><span class="lineno"> 1526</span>  }</div>
<div class="line"><a name="l01527"></a><span class="lineno"> 1527</span>  }</div>
<div class="line"><a name="l01528"></a><span class="lineno"> 1528</span>  <span class="keywordflow">if</span> (free_router_index < <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>) {</div>
<div class="line"><a name="l01529"></a><span class="lineno"> 1529</span>  default_router_list[free_router_index].neighbor_entry = &(neighbor_cache[neighbor_index]);</div>
<div class="line"><a name="l01530"></a><span class="lineno"> 1530</span>  <span class="keywordflow">return</span> free_router_index;</div>
<div class="line"><a name="l01531"></a><span class="lineno"> 1531</span>  }</div>
<div class="line"><a name="l01532"></a><span class="lineno"> 1532</span>  </div>
<div class="line"><a name="l01533"></a><span class="lineno"> 1533</span>  <span class="comment">/* Could not create a router entry. */</span></div>
<div class="line"><a name="l01534"></a><span class="lineno"> 1534</span>  </div>
<div class="line"><a name="l01535"></a><span class="lineno"> 1535</span>  <span class="comment">/* Mark neighbor entry as not-router. Entry might be useful as neighbor still. */</span></div>
<div class="line"><a name="l01536"></a><span class="lineno"> 1536</span>  neighbor_cache[neighbor_index].isrouter = 0;</div>
<div class="line"><a name="l01537"></a><span class="lineno"> 1537</span>  </div>
<div class="line"><a name="l01538"></a><span class="lineno"> 1538</span>  <span class="comment">/* router not found. */</span></div>
<div class="line"><a name="l01539"></a><span class="lineno"> 1539</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l01540"></a><span class="lineno"> 1540</span> }</div>
<div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>  </div>
<div class="line"><a name="l01549"></a><span class="lineno"> 1549</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01550"></a><span class="lineno"> 1550</span> nd6_get_onlink_prefix(ip6_addr_t *prefix, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>)</div>
<div class="line"><a name="l01551"></a><span class="lineno"> 1551</span> {</div>
<div class="line"><a name="l01552"></a><span class="lineno"> 1552</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01553"></a><span class="lineno"> 1553</span>  </div>
<div class="line"><a name="l01554"></a><span class="lineno"> 1554</span>  <span class="comment">/* Look for prefix in list. */</span></div>
<div class="line"><a name="l01555"></a><span class="lineno"> 1555</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ad9cc576b5951f1b5e1c2b0d0bb831d9a">LWIP_ND6_NUM_PREFIXES</a>; ++i) {</div>
<div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>  <span class="keywordflow">if</span> ((ip6_addr_netcmp(&(prefix_list[i].prefix), prefix)) &&</div>
<div class="line"><a name="l01557"></a><span class="lineno"> 1557</span>  (prefix_list[i].<a class="code" href="structnetif.html">netif</a> == <a class="code" href="structnetif.html">netif</a>)) {</div>
<div class="line"><a name="l01558"></a><span class="lineno"> 1558</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01559"></a><span class="lineno"> 1559</span>  }</div>
<div class="line"><a name="l01560"></a><span class="lineno"> 1560</span>  }</div>
<div class="line"><a name="l01561"></a><span class="lineno"> 1561</span>  </div>
<div class="line"><a name="l01562"></a><span class="lineno"> 1562</span>  <span class="comment">/* Entry not available. */</span></div>
<div class="line"><a name="l01563"></a><span class="lineno"> 1563</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l01564"></a><span class="lineno"> 1564</span> }</div>
<div class="line"><a name="l01565"></a><span class="lineno"> 1565</span>  </div>
<div class="line"><a name="l01573"></a><span class="lineno"> 1573</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01574"></a><span class="lineno"> 1574</span> nd6_new_onlink_prefix(ip6_addr_t *prefix, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>)</div>
<div class="line"><a name="l01575"></a><span class="lineno"> 1575</span> {</div>
<div class="line"><a name="l01576"></a><span class="lineno"> 1576</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01577"></a><span class="lineno"> 1577</span>  </div>
<div class="line"><a name="l01578"></a><span class="lineno"> 1578</span>  <span class="comment">/* Create new entry. */</span></div>
<div class="line"><a name="l01579"></a><span class="lineno"> 1579</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ad9cc576b5951f1b5e1c2b0d0bb831d9a">LWIP_ND6_NUM_PREFIXES</a>; ++i) {</div>
<div class="line"><a name="l01580"></a><span class="lineno"> 1580</span>  <span class="keywordflow">if</span> ((prefix_list[i].<a class="code" href="structnetif.html">netif</a> == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) ||</div>
<div class="line"><a name="l01581"></a><span class="lineno"> 1581</span>  (prefix_list[i].invalidation_timer == 0)) {</div>
<div class="line"><a name="l01582"></a><span class="lineno"> 1582</span>  <span class="comment">/* Found empty prefix entry. */</span></div>
<div class="line"><a name="l01583"></a><span class="lineno"> 1583</span>  prefix_list[i].netif = <a class="code" href="structnetif.html">netif</a>;</div>
<div class="line"><a name="l01584"></a><span class="lineno"> 1584</span>  ip6_addr_set(&(prefix_list[i].prefix), prefix);</div>
<div class="line"><a name="l01585"></a><span class="lineno"> 1585</span> <span class="preprocessor">#if LWIP_IPV6_AUTOCONFIG</span></div>
<div class="line"><a name="l01586"></a><span class="lineno"> 1586</span>  prefix_list[i].flags = 0;</div>
<div class="line"><a name="l01587"></a><span class="lineno"> 1587</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_AUTOCONFIG */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01588"></a><span class="lineno"> 1588</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>  }</div>
<div class="line"><a name="l01590"></a><span class="lineno"> 1590</span>  }</div>
<div class="line"><a name="l01591"></a><span class="lineno"> 1591</span>  </div>
<div class="line"><a name="l01592"></a><span class="lineno"> 1592</span>  <span class="comment">/* Entry not available. */</span></div>
<div class="line"><a name="l01593"></a><span class="lineno"> 1593</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l01594"></a><span class="lineno"> 1594</span> }</div>
<div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>  </div>
<div class="line"><a name="l01608"></a><span class="lineno"> 1608</span> <span class="keyword">static</span> <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div>
<div class="line"><a name="l01609"></a><span class="lineno"> 1609</span> nd6_get_next_hop_entry(<span class="keyword">const</span> ip6_addr_t *ip6addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>)</div>
<div class="line"><a name="l01610"></a><span class="lineno"> 1610</span> {</div>
<div class="line"><a name="l01611"></a><span class="lineno"> 1611</span> <span class="preprocessor">#ifdef LWIP_HOOK_ND6_GET_GW</span></div>
<div class="line"><a name="l01612"></a><span class="lineno"> 1612</span>  <span class="keyword">const</span> ip6_addr_t *next_hop_addr;</div>
<div class="line"><a name="l01613"></a><span class="lineno"> 1613</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_HOOK_ND6_GET_GW */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01614"></a><span class="lineno"> 1614</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>  </div>
<div class="line"><a name="l01616"></a><span class="lineno"> 1616</span> <span class="preprocessor">#if LWIP_NETIF_HWADDRHINT</span></div>
<div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>  <span class="keywordflow">if</span> (<a class="code" href="structnetif.html">netif</a>->addr_hint != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01618"></a><span class="lineno"> 1618</span>  <span class="comment">/* per-pcb cached entry was given */</span></div>
<div class="line"><a name="l01619"></a><span class="lineno"> 1619</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> addr_hint = *(<a class="code" href="structnetif.html">netif</a>->addr_hint);</div>
<div class="line"><a name="l01620"></a><span class="lineno"> 1620</span>  <span class="keywordflow">if</span> (addr_hint < <a class="code" href="lwipopts_8h.html#acad118b1ae886e80137a1d4f0fb19672">LWIP_ND6_NUM_DESTINATIONS</a>) {</div>
<div class="line"><a name="l01621"></a><span class="lineno"> 1621</span>  nd6_cached_destination_index = addr_hint;</div>
<div class="line"><a name="l01622"></a><span class="lineno"> 1622</span>  }</div>
<div class="line"><a name="l01623"></a><span class="lineno"> 1623</span>  }</div>
<div class="line"><a name="l01624"></a><span class="lineno"> 1624</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_NETIF_HWADDRHINT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01625"></a><span class="lineno"> 1625</span>  </div>
<div class="line"><a name="l01626"></a><span class="lineno"> 1626</span>  <span class="comment">/* Look for ip6addr in destination cache. */</span></div>
<div class="line"><a name="l01627"></a><span class="lineno"> 1627</span>  <span class="keywordflow">if</span> (ip6_addr_cmp(ip6addr, &(destination_cache[nd6_cached_destination_index].destination_addr))) {</div>
<div class="line"><a name="l01628"></a><span class="lineno"> 1628</span>  <span class="comment">/* the cached entry index is the right one! */</span></div>
<div class="line"><a name="l01629"></a><span class="lineno"> 1629</span>  <span class="comment">/* do nothing. */</span></div>
<div class="line"><a name="l01630"></a><span class="lineno"> 1630</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.cachehit);</div>
<div class="line"><a name="l01631"></a><span class="lineno"> 1631</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01632"></a><span class="lineno"> 1632</span>  <span class="comment">/* Search destination cache. */</span></div>
<div class="line"><a name="l01633"></a><span class="lineno"> 1633</span>  i = nd6_find_destination_cache_entry(ip6addr);</div>
<div class="line"><a name="l01634"></a><span class="lineno"> 1634</span>  <span class="keywordflow">if</span> (i >= 0) {</div>
<div class="line"><a name="l01635"></a><span class="lineno"> 1635</span>  <span class="comment">/* found destination entry. make it our new cached index. */</span></div>
<div class="line"><a name="l01636"></a><span class="lineno"> 1636</span>  nd6_cached_destination_index = i;</div>
<div class="line"><a name="l01637"></a><span class="lineno"> 1637</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01638"></a><span class="lineno"> 1638</span>  <span class="comment">/* Not found. Create a new destination entry. */</span></div>
<div class="line"><a name="l01639"></a><span class="lineno"> 1639</span>  i = nd6_new_destination_cache_entry();</div>
<div class="line"><a name="l01640"></a><span class="lineno"> 1640</span>  <span class="keywordflow">if</span> (i >= 0) {</div>
<div class="line"><a name="l01641"></a><span class="lineno"> 1641</span>  <span class="comment">/* got new destination entry. make it our new cached index. */</span></div>
<div class="line"><a name="l01642"></a><span class="lineno"> 1642</span>  nd6_cached_destination_index = i;</div>
<div class="line"><a name="l01643"></a><span class="lineno"> 1643</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01644"></a><span class="lineno"> 1644</span>  <span class="comment">/* Could not create a destination cache entry. */</span></div>
<div class="line"><a name="l01645"></a><span class="lineno"> 1645</span>  <span class="keywordflow">return</span> <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05">ERR_MEM</a>;</div>
<div class="line"><a name="l01646"></a><span class="lineno"> 1646</span>  }</div>
<div class="line"><a name="l01647"></a><span class="lineno"> 1647</span>  </div>
<div class="line"><a name="l01648"></a><span class="lineno"> 1648</span>  <span class="comment">/* Copy dest address to destination cache. */</span></div>
<div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>  ip6_addr_set(&(destination_cache[nd6_cached_destination_index].destination_addr), ip6addr);</div>
<div class="line"><a name="l01650"></a><span class="lineno"> 1650</span>  </div>
<div class="line"><a name="l01651"></a><span class="lineno"> 1651</span>  <span class="comment">/* Now find the next hop. is it a neighbor? */</span></div>
<div class="line"><a name="l01652"></a><span class="lineno"> 1652</span>  <span class="keywordflow">if</span> (ip6_addr_islinklocal(ip6addr) ||</div>
<div class="line"><a name="l01653"></a><span class="lineno"> 1653</span>  nd6_is_prefix_in_netif(ip6addr, <a class="code" href="structnetif.html">netif</a>)) {</div>
<div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>  <span class="comment">/* Destination in local link. */</span></div>
<div class="line"><a name="l01655"></a><span class="lineno"> 1655</span>  destination_cache[nd6_cached_destination_index].pmtu = <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#aca7d56b4e0f822b0ced2885f222b8d48">mtu</a>;</div>
<div class="line"><a name="l01656"></a><span class="lineno"> 1656</span>  ip6_addr_copy(destination_cache[nd6_cached_destination_index].next_hop_addr, destination_cache[nd6_cached_destination_index].destination_addr);</div>
<div class="line"><a name="l01657"></a><span class="lineno"> 1657</span> <span class="preprocessor">#ifdef LWIP_HOOK_ND6_GET_GW</span></div>
<div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> ((next_hop_addr = LWIP_HOOK_ND6_GET_GW(<a class="code" href="structnetif.html">netif</a>, ip6addr)) != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01659"></a><span class="lineno"> 1659</span>  <span class="comment">/* Next hop for destination provided by hook function. */</span></div>
<div class="line"><a name="l01660"></a><span class="lineno"> 1660</span>  destination_cache[nd6_cached_destination_index].pmtu = <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#aca7d56b4e0f822b0ced2885f222b8d48">mtu</a>;</div>
<div class="line"><a name="l01661"></a><span class="lineno"> 1661</span>  ip6_addr_set(&destination_cache[nd6_cached_destination_index].next_hop_addr, next_hop_addr);</div>
<div class="line"><a name="l01662"></a><span class="lineno"> 1662</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_HOOK_ND6_GET_GW */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01663"></a><span class="lineno"> 1663</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01664"></a><span class="lineno"> 1664</span>  <span class="comment">/* We need to select a router. */</span></div>
<div class="line"><a name="l01665"></a><span class="lineno"> 1665</span>  i = nd6_select_router(ip6addr, <a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l01667"></a><span class="lineno"> 1667</span>  <span class="comment">/* No router found. */</span></div>
<div class="line"><a name="l01668"></a><span class="lineno"> 1668</span>  ip6_addr_set_any(&(destination_cache[nd6_cached_destination_index].destination_addr));</div>
<div class="line"><a name="l01669"></a><span class="lineno"> 1669</span>  <span class="keywordflow">return</span> <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadca9448893187313c0c5a502ca9a9ad1c2a">ERR_RTE</a>;</div>
<div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>  }</div>
<div class="line"><a name="l01671"></a><span class="lineno"> 1671</span>  destination_cache[nd6_cached_destination_index].pmtu = <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#aca7d56b4e0f822b0ced2885f222b8d48">mtu</a>; <span class="comment">/* Start with netif mtu, correct through ICMPv6 if necessary */</span></div>
<div class="line"><a name="l01672"></a><span class="lineno"> 1672</span>  ip6_addr_copy(destination_cache[nd6_cached_destination_index].next_hop_addr, default_router_list[i].neighbor_entry->next_hop_address);</div>
<div class="line"><a name="l01673"></a><span class="lineno"> 1673</span>  }</div>
<div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>  }</div>
<div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>  }</div>
<div class="line"><a name="l01676"></a><span class="lineno"> 1676</span>  </div>
<div class="line"><a name="l01677"></a><span class="lineno"> 1677</span> <span class="preprocessor">#if LWIP_NETIF_HWADDRHINT</span></div>
<div class="line"><a name="l01678"></a><span class="lineno"> 1678</span>  <span class="keywordflow">if</span> (<a class="code" href="structnetif.html">netif</a>->addr_hint != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01679"></a><span class="lineno"> 1679</span>  <span class="comment">/* per-pcb cached entry was given */</span></div>
<div class="line"><a name="l01680"></a><span class="lineno"> 1680</span>  *(<a class="code" href="structnetif.html">netif</a>->addr_hint) = nd6_cached_destination_index;</div>
<div class="line"><a name="l01681"></a><span class="lineno"> 1681</span>  }</div>
<div class="line"><a name="l01682"></a><span class="lineno"> 1682</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_NETIF_HWADDRHINT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>  </div>
<div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>  <span class="comment">/* Look in neighbor cache for the next-hop address. */</span></div>
<div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>  <span class="keywordflow">if</span> (ip6_addr_cmp(&(destination_cache[nd6_cached_destination_index].next_hop_addr),</div>
<div class="line"><a name="l01686"></a><span class="lineno"> 1686</span>  &(neighbor_cache[nd6_cached_neighbor_index].next_hop_address))) {</div>
<div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>  <span class="comment">/* Cache hit. */</span></div>
<div class="line"><a name="l01688"></a><span class="lineno"> 1688</span>  <span class="comment">/* Do nothing. */</span></div>
<div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.cachehit);</div>
<div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01691"></a><span class="lineno"> 1691</span>  i = nd6_find_neighbor_cache_entry(&(destination_cache[nd6_cached_destination_index].next_hop_addr));</div>
<div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>  <span class="keywordflow">if</span> (i >= 0) {</div>
<div class="line"><a name="l01693"></a><span class="lineno"> 1693</span>  <span class="comment">/* Found a matching record, make it new cached entry. */</span></div>
<div class="line"><a name="l01694"></a><span class="lineno"> 1694</span>  nd6_cached_neighbor_index = i;</div>
<div class="line"><a name="l01695"></a><span class="lineno"> 1695</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>  <span class="comment">/* Neighbor not in cache. Make a new entry. */</span></div>
<div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>  i = nd6_new_neighbor_cache_entry();</div>
<div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>  <span class="keywordflow">if</span> (i >= 0) {</div>
<div class="line"><a name="l01699"></a><span class="lineno"> 1699</span>  <span class="comment">/* got new neighbor entry. make it our new cached index. */</span></div>
<div class="line"><a name="l01700"></a><span class="lineno"> 1700</span>  nd6_cached_neighbor_index = i;</div>
<div class="line"><a name="l01701"></a><span class="lineno"> 1701</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>  <span class="comment">/* Could not create a neighbor cache entry. */</span></div>
<div class="line"><a name="l01703"></a><span class="lineno"> 1703</span>  <span class="keywordflow">return</span> <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05">ERR_MEM</a>;</div>
<div class="line"><a name="l01704"></a><span class="lineno"> 1704</span>  }</div>
<div class="line"><a name="l01705"></a><span class="lineno"> 1705</span>  </div>
<div class="line"><a name="l01706"></a><span class="lineno"> 1706</span>  <span class="comment">/* Initialize fields. */</span></div>
<div class="line"><a name="l01707"></a><span class="lineno"> 1707</span>  ip6_addr_copy(neighbor_cache[i].next_hop_address,</div>
<div class="line"><a name="l01708"></a><span class="lineno"> 1708</span>  destination_cache[nd6_cached_destination_index].next_hop_addr);</div>
<div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>  neighbor_cache[i].isrouter = 0;</div>
<div class="line"><a name="l01710"></a><span class="lineno"> 1710</span>  neighbor_cache[i].netif = <a class="code" href="structnetif.html">netif</a>;</div>
<div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>  neighbor_cache[i].<a class="code" href="structnetif.html#a809cc57c0dff09c5c9ae45b02c2002f3">state</a> = ND6_INCOMPLETE;</div>
<div class="line"><a name="l01712"></a><span class="lineno"> 1712</span>  neighbor_cache[i].counter.probes_sent = 1;</div>
<div class="line"><a name="l01713"></a><span class="lineno"> 1713</span>  nd6_send_neighbor_cache_probe(&neighbor_cache[i], ND6_SEND_FLAG_MULTICAST_DEST);</div>
<div class="line"><a name="l01714"></a><span class="lineno"> 1714</span>  }</div>
<div class="line"><a name="l01715"></a><span class="lineno"> 1715</span>  }</div>
<div class="line"><a name="l01716"></a><span class="lineno"> 1716</span>  </div>
<div class="line"><a name="l01717"></a><span class="lineno"> 1717</span>  <span class="comment">/* Reset this destination's age. */</span></div>
<div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>  destination_cache[nd6_cached_destination_index].age = 0;</div>
<div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>  </div>
<div class="line"><a name="l01720"></a><span class="lineno"> 1720</span>  <span class="keywordflow">return</span> nd6_cached_neighbor_index;</div>
<div class="line"><a name="l01721"></a><span class="lineno"> 1721</span> }</div>
<div class="line"><a name="l01722"></a><span class="lineno"> 1722</span>  </div>
<div class="line"><a name="l01730"></a><span class="lineno"> 1730</span> <span class="keyword">static</span> <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a></div>
<div class="line"><a name="l01731"></a><span class="lineno"> 1731</span> nd6_queue_packet(<a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> neighbor_index, <span class="keyword">struct</span> <a class="code" href="structpbuf.html">pbuf</a> *q)</div>
<div class="line"><a name="l01732"></a><span class="lineno"> 1732</span> {</div>
<div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>  <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> result = <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05">ERR_MEM</a>;</div>
<div class="line"><a name="l01734"></a><span class="lineno"> 1734</span>  <span class="keyword">struct </span><a class="code" href="structpbuf.html">pbuf</a> *p;</div>
<div class="line"><a name="l01735"></a><span class="lineno"> 1735</span>  <span class="keywordtype">int</span> copy_needed = 0;</div>
<div class="line"><a name="l01736"></a><span class="lineno"> 1736</span> <span class="preprocessor">#if LWIP_ND6_QUEUEING</span></div>
<div class="line"><a name="l01737"></a><span class="lineno"> 1737</span>  <span class="keyword">struct </span>nd6_q_entry *new_entry, *r;</div>
<div class="line"><a name="l01738"></a><span class="lineno"> 1738</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>  </div>
<div class="line"><a name="l01740"></a><span class="lineno"> 1740</span>  <span class="keywordflow">if</span> ((neighbor_index < 0) || (neighbor_index >= <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>)) {</div>
<div class="line"><a name="l01741"></a><span class="lineno"> 1741</span>  <span class="keywordflow">return</span> <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcab508ce0ebdf3ca735208b00a80a45c91">ERR_ARG</a>;</div>
<div class="line"><a name="l01742"></a><span class="lineno"> 1742</span>  }</div>
<div class="line"><a name="l01743"></a><span class="lineno"> 1743</span>  </div>
<div class="line"><a name="l01744"></a><span class="lineno"> 1744</span>  <span class="comment">/* IF q includes a PBUF_REF, PBUF_POOL or PBUF_RAM, we have no choice but</span></div>
<div class="line"><a name="l01745"></a><span class="lineno"> 1745</span> <span class="comment"> * to copy the whole queue into a new PBUF_RAM (see bug #11400)</span></div>
<div class="line"><a name="l01746"></a><span class="lineno"> 1746</span> <span class="comment"> * PBUF_ROMs can be left as they are, since ROM must not get changed. */</span></div>
<div class="line"><a name="l01747"></a><span class="lineno"> 1747</span>  p = q;</div>
<div class="line"><a name="l01748"></a><span class="lineno"> 1748</span>  <span class="keywordflow">while</span> (p) {</div>
<div class="line"><a name="l01749"></a><span class="lineno"> 1749</span>  <span class="keywordflow">if</span> (p-><a class="code" href="structpbuf.html#afd7bff5210a022424caa97d2f25fe8e6">type</a> != <a class="code" href="group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac120b0fe39efe35bb682e4aa3b82e2c9">PBUF_ROM</a>) {</div>
<div class="line"><a name="l01750"></a><span class="lineno"> 1750</span>  copy_needed = 1;</div>
<div class="line"><a name="l01751"></a><span class="lineno"> 1751</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>  }</div>
<div class="line"><a name="l01753"></a><span class="lineno"> 1753</span>  p = p-><a class="code" href="structpbuf.html#a5e5763c94fd18d78937b0b58ce7df341">next</a>;</div>
<div class="line"><a name="l01754"></a><span class="lineno"> 1754</span>  }</div>
<div class="line"><a name="l01755"></a><span class="lineno"> 1755</span>  <span class="keywordflow">if</span> (copy_needed) {</div>
<div class="line"><a name="l01756"></a><span class="lineno"> 1756</span>  <span class="comment">/* copy the whole packet into new pbufs */</span></div>
<div class="line"><a name="l01757"></a><span class="lineno"> 1757</span>  p = <a class="code" href="group__pbuf.html#gacfcb0a2af918658ba0afe36499c65f47">pbuf_alloc</a>(<a class="code" href="group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfab4de441e737330558b609a990cd17346">PBUF_LINK</a>, q-><a class="code" href="structpbuf.html#a5259e7ec29bab9c0999b64f2e86b411f">tot_len</a>, <a class="code" href="group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab">PBUF_RAM</a>);</div>
<div class="line"><a name="l01758"></a><span class="lineno"> 1758</span>  <span class="keywordflow">while</span> ((p == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) && (neighbor_cache[neighbor_index].q != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)) {</div>
<div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>  <span class="comment">/* Free oldest packet (as per RFC recommendation) */</span></div>
<div class="line"><a name="l01760"></a><span class="lineno"> 1760</span> <span class="preprocessor">#if LWIP_ND6_QUEUEING</span></div>
<div class="line"><a name="l01761"></a><span class="lineno"> 1761</span>  r = neighbor_cache[neighbor_index].q;</div>
<div class="line"><a name="l01762"></a><span class="lineno"> 1762</span>  neighbor_cache[neighbor_index].q = r->next;</div>
<div class="line"><a name="l01763"></a><span class="lineno"> 1763</span>  r->next = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01764"></a><span class="lineno"> 1764</span>  nd6_free_q(r);</div>
<div class="line"><a name="l01765"></a><span class="lineno"> 1765</span> <span class="preprocessor">#else </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01766"></a><span class="lineno"> 1766</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(neighbor_cache[neighbor_index].q);</div>
<div class="line"><a name="l01767"></a><span class="lineno"> 1767</span>  neighbor_cache[neighbor_index].q = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01768"></a><span class="lineno"> 1768</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01769"></a><span class="lineno"> 1769</span>  p = <a class="code" href="group__pbuf.html#gacfcb0a2af918658ba0afe36499c65f47">pbuf_alloc</a>(<a class="code" href="group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfab4de441e737330558b609a990cd17346">PBUF_LINK</a>, q-><a class="code" href="structpbuf.html#a5259e7ec29bab9c0999b64f2e86b411f">tot_len</a>, <a class="code" href="group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab">PBUF_RAM</a>);</div>
<div class="line"><a name="l01770"></a><span class="lineno"> 1770</span>  }</div>
<div class="line"><a name="l01771"></a><span class="lineno"> 1771</span>  <span class="keywordflow">if</span> (p != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01772"></a><span class="lineno"> 1772</span>  <span class="keywordflow">if</span> (<a class="code" href="group__pbuf.html#gaba88511dee3df4b631fde691f421320d">pbuf_copy</a>(p, q) != <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>) {</div>
<div class="line"><a name="l01773"></a><span class="lineno"> 1773</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l01774"></a><span class="lineno"> 1774</span>  p = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01775"></a><span class="lineno"> 1775</span>  }</div>
<div class="line"><a name="l01776"></a><span class="lineno"> 1776</span>  }</div>
<div class="line"><a name="l01777"></a><span class="lineno"> 1777</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01778"></a><span class="lineno"> 1778</span>  <span class="comment">/* referencing the old pbuf is enough */</span></div>
<div class="line"><a name="l01779"></a><span class="lineno"> 1779</span>  p = q;</div>
<div class="line"><a name="l01780"></a><span class="lineno"> 1780</span>  <a class="code" href="group__pbuf.html#ga77f6bbd69e45e542014d9c547c7da74e">pbuf_ref</a>(p);</div>
<div class="line"><a name="l01781"></a><span class="lineno"> 1781</span>  }</div>
<div class="line"><a name="l01782"></a><span class="lineno"> 1782</span>  <span class="comment">/* packet was copied/ref'd? */</span></div>
<div class="line"><a name="l01783"></a><span class="lineno"> 1783</span>  <span class="keywordflow">if</span> (p != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01784"></a><span class="lineno"> 1784</span>  <span class="comment">/* queue packet ... */</span></div>
<div class="line"><a name="l01785"></a><span class="lineno"> 1785</span> <span class="preprocessor">#if LWIP_ND6_QUEUEING</span></div>
<div class="line"><a name="l01786"></a><span class="lineno"> 1786</span>  <span class="comment">/* allocate a new nd6 queue entry */</span></div>
<div class="line"><a name="l01787"></a><span class="lineno"> 1787</span>  new_entry = (<span class="keyword">struct </span>nd6_q_entry *)<a class="code" href="memp_8h.html#a2b00593d086313c267b54a976bf67aa5">memp_malloc</a>(MEMP_ND6_QUEUE);</div>
<div class="line"><a name="l01788"></a><span class="lineno"> 1788</span>  <span class="keywordflow">if</span> ((new_entry == <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) && (neighbor_cache[neighbor_index].q != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)) {</div>
<div class="line"><a name="l01789"></a><span class="lineno"> 1789</span>  <span class="comment">/* Free oldest packet (as per RFC recommendation) */</span></div>
<div class="line"><a name="l01790"></a><span class="lineno"> 1790</span>  r = neighbor_cache[neighbor_index].q;</div>
<div class="line"><a name="l01791"></a><span class="lineno"> 1791</span>  neighbor_cache[neighbor_index].q = r->next;</div>
<div class="line"><a name="l01792"></a><span class="lineno"> 1792</span>  r->next = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01793"></a><span class="lineno"> 1793</span>  nd6_free_q(r);</div>
<div class="line"><a name="l01794"></a><span class="lineno"> 1794</span>  new_entry = (<span class="keyword">struct </span>nd6_q_entry *)<a class="code" href="memp_8h.html#a2b00593d086313c267b54a976bf67aa5">memp_malloc</a>(MEMP_ND6_QUEUE);</div>
<div class="line"><a name="l01795"></a><span class="lineno"> 1795</span>  }</div>
<div class="line"><a name="l01796"></a><span class="lineno"> 1796</span>  <span class="keywordflow">if</span> (new_entry != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01797"></a><span class="lineno"> 1797</span>  new_entry->next = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01798"></a><span class="lineno"> 1798</span>  new_entry->p = p;</div>
<div class="line"><a name="l01799"></a><span class="lineno"> 1799</span>  <span class="keywordflow">if</span> (neighbor_cache[neighbor_index].q != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01800"></a><span class="lineno"> 1800</span>  <span class="comment">/* queue was already existent, append the new entry to the end */</span></div>
<div class="line"><a name="l01801"></a><span class="lineno"> 1801</span>  r = neighbor_cache[neighbor_index].q;</div>
<div class="line"><a name="l01802"></a><span class="lineno"> 1802</span>  <span class="keywordflow">while</span> (r->next != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01803"></a><span class="lineno"> 1803</span>  r = r-><a class="code" href="structpbuf.html#a5e5763c94fd18d78937b0b58ce7df341">next</a>;</div>
<div class="line"><a name="l01804"></a><span class="lineno"> 1804</span>  }</div>
<div class="line"><a name="l01805"></a><span class="lineno"> 1805</span>  r-><a class="code" href="structpbuf.html#a5e5763c94fd18d78937b0b58ce7df341">next</a> = new_entry;</div>
<div class="line"><a name="l01806"></a><span class="lineno"> 1806</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01807"></a><span class="lineno"> 1807</span>  <span class="comment">/* queue did not exist, first item in queue */</span></div>
<div class="line"><a name="l01808"></a><span class="lineno"> 1808</span>  neighbor_cache[neighbor_index].q = new_entry;</div>
<div class="line"><a name="l01809"></a><span class="lineno"> 1809</span>  }</div>
<div class="line"><a name="l01810"></a><span class="lineno"> 1810</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="group__debugging__levels.html#ga988147559b78642ac881815b66023646">LWIP_DBG_TRACE</a>, (<span class="stringliteral">"ipv6: queued packet %p on neighbor entry %"</span><a class="code" href="group__compiler__abstraction.html#gac05a82d37afb251470f5e17ca15ab6e9">S16_F</a><span class="stringliteral">"\n"</span>, (<span class="keywordtype">void</span> *)p, (<a class="code" href="group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a>)neighbor_index));</div>
<div class="line"><a name="l01811"></a><span class="lineno"> 1811</span>  result = <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>;</div>
<div class="line"><a name="l01812"></a><span class="lineno"> 1812</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01813"></a><span class="lineno"> 1813</span>  <span class="comment">/* the pool MEMP_ND6_QUEUE is empty */</span></div>
<div class="line"><a name="l01814"></a><span class="lineno"> 1814</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(p);</div>
<div class="line"><a name="l01815"></a><span class="lineno"> 1815</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="group__debugging__levels.html#ga988147559b78642ac881815b66023646">LWIP_DBG_TRACE</a>, (<span class="stringliteral">"ipv6: could not queue a copy of packet %p (out of memory)\n"</span>, (<span class="keywordtype">void</span> *)p));</div>
<div class="line"><a name="l01816"></a><span class="lineno"> 1816</span>  <span class="comment">/* { result == ERR_MEM } through initialization */</span></div>
<div class="line"><a name="l01817"></a><span class="lineno"> 1817</span>  }</div>
<div class="line"><a name="l01818"></a><span class="lineno"> 1818</span> <span class="preprocessor">#else </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01819"></a><span class="lineno"> 1819</span>  <span class="comment">/* Queue a single packet. If an older packet is already queued, free it as per RFC. */</span></div>
<div class="line"><a name="l01820"></a><span class="lineno"> 1820</span>  <span class="keywordflow">if</span> (neighbor_cache[neighbor_index].q != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01821"></a><span class="lineno"> 1821</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(neighbor_cache[neighbor_index].q);</div>
<div class="line"><a name="l01822"></a><span class="lineno"> 1822</span>  }</div>
<div class="line"><a name="l01823"></a><span class="lineno"> 1823</span>  neighbor_cache[neighbor_index].q = p;</div>
<div class="line"><a name="l01824"></a><span class="lineno"> 1824</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="group__debugging__levels.html#ga988147559b78642ac881815b66023646">LWIP_DBG_TRACE</a>, (<span class="stringliteral">"ipv6: queued packet %p on neighbor entry %"</span><a class="code" href="group__compiler__abstraction.html#gac05a82d37afb251470f5e17ca15ab6e9">S16_F</a><span class="stringliteral">"\n"</span>, (<span class="keywordtype">void</span> *)p, (<a class="code" href="group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a>)neighbor_index));</div>
<div class="line"><a name="l01825"></a><span class="lineno"> 1825</span>  result = <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>;</div>
<div class="line"><a name="l01826"></a><span class="lineno"> 1826</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01827"></a><span class="lineno"> 1827</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l01828"></a><span class="lineno"> 1828</span>  <a class="code" href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="group__debugging__levels.html#ga988147559b78642ac881815b66023646">LWIP_DBG_TRACE</a>, (<span class="stringliteral">"ipv6: could not queue a copy of packet %p (out of memory)\n"</span>, (<span class="keywordtype">void</span> *)q));</div>
<div class="line"><a name="l01829"></a><span class="lineno"> 1829</span>  <span class="comment">/* { result == ERR_MEM } through initialization */</span></div>
<div class="line"><a name="l01830"></a><span class="lineno"> 1830</span>  }</div>
<div class="line"><a name="l01831"></a><span class="lineno"> 1831</span>  </div>
<div class="line"><a name="l01832"></a><span class="lineno"> 1832</span>  <span class="keywordflow">return</span> result;</div>
<div class="line"><a name="l01833"></a><span class="lineno"> 1833</span> }</div>
<div class="line"><a name="l01834"></a><span class="lineno"> 1834</span>  </div>
<div class="line"><a name="l01835"></a><span class="lineno"> 1835</span> <span class="preprocessor">#if LWIP_ND6_QUEUEING</span></div>
<div class="line"><a name="l01836"></a><span class="lineno"> 1836</span>  </div>
<div class="line"><a name="l01841"></a><span class="lineno"> 1841</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l01842"></a><span class="lineno"> 1842</span> nd6_free_q(<span class="keyword">struct</span> nd6_q_entry *q)</div>
<div class="line"><a name="l01843"></a><span class="lineno"> 1843</span> {</div>
<div class="line"><a name="l01844"></a><span class="lineno"> 1844</span>  <span class="keyword">struct </span>nd6_q_entry *r;</div>
<div class="line"><a name="l01845"></a><span class="lineno"> 1845</span>  <a class="code" href="debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"q != NULL"</span>, q != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l01846"></a><span class="lineno"> 1846</span>  <a class="code" href="debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"q->p != NULL"</span>, q->p != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);</div>
<div class="line"><a name="l01847"></a><span class="lineno"> 1847</span>  <span class="keywordflow">while</span> (q) {</div>
<div class="line"><a name="l01848"></a><span class="lineno"> 1848</span>  r = q;</div>
<div class="line"><a name="l01849"></a><span class="lineno"> 1849</span>  q = q->next;</div>
<div class="line"><a name="l01850"></a><span class="lineno"> 1850</span>  <a class="code" href="debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"r->p != NULL"</span>, (r->p != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>));</div>
<div class="line"><a name="l01851"></a><span class="lineno"> 1851</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(r->p);</div>
<div class="line"><a name="l01852"></a><span class="lineno"> 1852</span>  <a class="code" href="memp_8h.html#aecd94926b7c2a0e23ae195f4ae97581f">memp_free</a>(MEMP_ND6_QUEUE, r);</div>
<div class="line"><a name="l01853"></a><span class="lineno"> 1853</span>  }</div>
<div class="line"><a name="l01854"></a><span class="lineno"> 1854</span> }</div>
<div class="line"><a name="l01855"></a><span class="lineno"> 1855</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01856"></a><span class="lineno"> 1856</span>  </div>
<div class="line"><a name="l01862"></a><span class="lineno"> 1862</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l01863"></a><span class="lineno"> 1863</span> nd6_send_q(<a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i)</div>
<div class="line"><a name="l01864"></a><span class="lineno"> 1864</span> {</div>
<div class="line"><a name="l01865"></a><span class="lineno"> 1865</span>  <span class="keyword">struct </span><a class="code" href="structip6__hdr.html">ip6_hdr</a> *ip6hdr;</div>
<div class="line"><a name="l01866"></a><span class="lineno"> 1866</span>  ip6_addr_t dest;</div>
<div class="line"><a name="l01867"></a><span class="lineno"> 1867</span> <span class="preprocessor">#if LWIP_ND6_QUEUEING</span></div>
<div class="line"><a name="l01868"></a><span class="lineno"> 1868</span>  <span class="keyword">struct </span>nd6_q_entry *q;</div>
<div class="line"><a name="l01869"></a><span class="lineno"> 1869</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01870"></a><span class="lineno"> 1870</span>  </div>
<div class="line"><a name="l01871"></a><span class="lineno"> 1871</span>  <span class="keywordflow">if</span> ((i < 0) || (i >= <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>)) {</div>
<div class="line"><a name="l01872"></a><span class="lineno"> 1872</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l01873"></a><span class="lineno"> 1873</span>  }</div>
<div class="line"><a name="l01874"></a><span class="lineno"> 1874</span>  </div>
<div class="line"><a name="l01875"></a><span class="lineno"> 1875</span> <span class="preprocessor">#if LWIP_ND6_QUEUEING</span></div>
<div class="line"><a name="l01876"></a><span class="lineno"> 1876</span>  <span class="keywordflow">while</span> (neighbor_cache[i].q != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01877"></a><span class="lineno"> 1877</span>  <span class="comment">/* remember first in queue */</span></div>
<div class="line"><a name="l01878"></a><span class="lineno"> 1878</span>  q = neighbor_cache[i].q;</div>
<div class="line"><a name="l01879"></a><span class="lineno"> 1879</span>  <span class="comment">/* pop first item off the queue */</span></div>
<div class="line"><a name="l01880"></a><span class="lineno"> 1880</span>  neighbor_cache[i].q = q->next;</div>
<div class="line"><a name="l01881"></a><span class="lineno"> 1881</span>  <span class="comment">/* Get ipv6 header. */</span></div>
<div class="line"><a name="l01882"></a><span class="lineno"> 1882</span>  ip6hdr = (<span class="keyword">struct </span><a class="code" href="structip6__hdr.html">ip6_hdr</a> *)(q->p->payload);</div>
<div class="line"><a name="l01883"></a><span class="lineno"> 1883</span>  <span class="comment">/* Create an aligned copy. */</span></div>
<div class="line"><a name="l01884"></a><span class="lineno"> 1884</span>  ip6_addr_set(&dest, &(ip6hdr->dest));</div>
<div class="line"><a name="l01885"></a><span class="lineno"> 1885</span>  <span class="comment">/* send the queued IPv6 packet */</span></div>
<div class="line"><a name="l01886"></a><span class="lineno"> 1886</span>  (neighbor_cache[i].netif)->output_ip6(neighbor_cache[i].<a class="code" href="structnetif.html">netif</a>, q->p, &dest);</div>
<div class="line"><a name="l01887"></a><span class="lineno"> 1887</span>  <span class="comment">/* free the queued IP packet */</span></div>
<div class="line"><a name="l01888"></a><span class="lineno"> 1888</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(q->p);</div>
<div class="line"><a name="l01889"></a><span class="lineno"> 1889</span>  <span class="comment">/* now queue entry can be freed */</span></div>
<div class="line"><a name="l01890"></a><span class="lineno"> 1890</span>  <a class="code" href="memp_8h.html#aecd94926b7c2a0e23ae195f4ae97581f">memp_free</a>(MEMP_ND6_QUEUE, q);</div>
<div class="line"><a name="l01891"></a><span class="lineno"> 1891</span>  }</div>
<div class="line"><a name="l01892"></a><span class="lineno"> 1892</span> <span class="preprocessor">#else </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01893"></a><span class="lineno"> 1893</span>  <span class="keywordflow">if</span> (neighbor_cache[i].q != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01894"></a><span class="lineno"> 1894</span>  <span class="comment">/* Get ipv6 header. */</span></div>
<div class="line"><a name="l01895"></a><span class="lineno"> 1895</span>  ip6hdr = (<span class="keyword">struct </span><a class="code" href="structip6__hdr.html">ip6_hdr</a> *)(neighbor_cache[i].q->payload);</div>
<div class="line"><a name="l01896"></a><span class="lineno"> 1896</span>  <span class="comment">/* Create an aligned copy. */</span></div>
<div class="line"><a name="l01897"></a><span class="lineno"> 1897</span>  ip6_addr_set(&dest, &(ip6hdr->dest));</div>
<div class="line"><a name="l01898"></a><span class="lineno"> 1898</span>  <span class="comment">/* send the queued IPv6 packet */</span></div>
<div class="line"><a name="l01899"></a><span class="lineno"> 1899</span>  (neighbor_cache[i].netif)->output_ip6(neighbor_cache[i].<a class="code" href="structnetif.html">netif</a>, neighbor_cache[i].q, &dest);</div>
<div class="line"><a name="l01900"></a><span class="lineno"> 1900</span>  <span class="comment">/* free the queued IP packet */</span></div>
<div class="line"><a name="l01901"></a><span class="lineno"> 1901</span>  <a class="code" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a>(neighbor_cache[i].q);</div>
<div class="line"><a name="l01902"></a><span class="lineno"> 1902</span>  neighbor_cache[i].q = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01903"></a><span class="lineno"> 1903</span>  }</div>
<div class="line"><a name="l01904"></a><span class="lineno"> 1904</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_QUEUEING */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l01905"></a><span class="lineno"> 1905</span> }</div>
<div class="line"><a name="l01906"></a><span class="lineno"> 1906</span>  </div>
<div class="line"><a name="l01929"></a><span class="lineno"> 1929</span> <a class="code" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a></div>
<div class="line"><a name="l01930"></a><span class="lineno"> 1930</span> nd6_get_next_hop_addr_or_queue(<span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>, <span class="keyword">struct</span> <a class="code" href="structpbuf.html">pbuf</a> *q, <span class="keyword">const</span> ip6_addr_t *ip6addr, <span class="keyword">const</span> <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> **hwaddrp)</div>
<div class="line"><a name="l01931"></a><span class="lineno"> 1931</span> {</div>
<div class="line"><a name="l01932"></a><span class="lineno"> 1932</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01933"></a><span class="lineno"> 1933</span>  </div>
<div class="line"><a name="l01934"></a><span class="lineno"> 1934</span>  <span class="comment">/* Get next hop record. */</span></div>
<div class="line"><a name="l01935"></a><span class="lineno"> 1935</span>  i = nd6_get_next_hop_entry(ip6addr, <a class="code" href="structnetif.html">netif</a>);</div>
<div class="line"><a name="l01936"></a><span class="lineno"> 1936</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l01937"></a><span class="lineno"> 1937</span>  <span class="comment">/* failed to get a next hop neighbor record. */</span></div>
<div class="line"><a name="l01938"></a><span class="lineno"> 1938</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l01939"></a><span class="lineno"> 1939</span>  }</div>
<div class="line"><a name="l01940"></a><span class="lineno"> 1940</span>  </div>
<div class="line"><a name="l01941"></a><span class="lineno"> 1941</span>  <span class="comment">/* Now that we have a destination record, send or queue the packet. */</span></div>
<div class="line"><a name="l01942"></a><span class="lineno"> 1942</span>  <span class="keywordflow">if</span> (neighbor_cache[i].state == ND6_STALE) {</div>
<div class="line"><a name="l01943"></a><span class="lineno"> 1943</span>  <span class="comment">/* Switch to delay state. */</span></div>
<div class="line"><a name="l01944"></a><span class="lineno"> 1944</span>  neighbor_cache[i].state = ND6_DELAY;</div>
<div class="line"><a name="l01945"></a><span class="lineno"> 1945</span>  neighbor_cache[i].counter.delay_time = <a class="code" href="lwipopts_8h.html#a315bd6d4a9d185766dfc3253cd9d7715">LWIP_ND6_DELAY_FIRST_PROBE_TIME</a> / ND6_TMR_INTERVAL;</div>
<div class="line"><a name="l01946"></a><span class="lineno"> 1946</span>  }</div>
<div class="line"><a name="l01947"></a><span class="lineno"> 1947</span>  <span class="comment">/* @todo should we send or queue if PROBE? send for now, to let unicast NS pass. */</span></div>
<div class="line"><a name="l01948"></a><span class="lineno"> 1948</span>  <span class="keywordflow">if</span> ((neighbor_cache[i].state == ND6_REACHABLE) ||</div>
<div class="line"><a name="l01949"></a><span class="lineno"> 1949</span>  (neighbor_cache[i].state == ND6_DELAY) ||</div>
<div class="line"><a name="l01950"></a><span class="lineno"> 1950</span>  (neighbor_cache[i].state == ND6_PROBE)) {</div>
<div class="line"><a name="l01951"></a><span class="lineno"> 1951</span>  </div>
<div class="line"><a name="l01952"></a><span class="lineno"> 1952</span>  <span class="comment">/* Tell the caller to send out the packet now. */</span></div>
<div class="line"><a name="l01953"></a><span class="lineno"> 1953</span>  *hwaddrp = neighbor_cache[i].lladdr;</div>
<div class="line"><a name="l01954"></a><span class="lineno"> 1954</span>  <span class="keywordflow">return</span> <a class="code" href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>;</div>
<div class="line"><a name="l01955"></a><span class="lineno"> 1955</span>  }</div>
<div class="line"><a name="l01956"></a><span class="lineno"> 1956</span>  </div>
<div class="line"><a name="l01957"></a><span class="lineno"> 1957</span>  <span class="comment">/* We should queue packet on this interface. */</span></div>
<div class="line"><a name="l01958"></a><span class="lineno"> 1958</span>  *hwaddrp = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l01959"></a><span class="lineno"> 1959</span>  <span class="keywordflow">return</span> nd6_queue_packet(i, q);</div>
<div class="line"><a name="l01960"></a><span class="lineno"> 1960</span> }</div>
<div class="line"><a name="l01961"></a><span class="lineno"> 1961</span>  </div>
<div class="line"><a name="l01962"></a><span class="lineno"> 1962</span>  </div>
<div class="line"><a name="l01970"></a><span class="lineno"> 1970</span> <a class="code" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a></div>
<div class="line"><a name="l01971"></a><span class="lineno"> 1971</span> nd6_get_destination_mtu(<span class="keyword">const</span> ip6_addr_t *ip6addr, <span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>)</div>
<div class="line"><a name="l01972"></a><span class="lineno"> 1972</span> {</div>
<div class="line"><a name="l01973"></a><span class="lineno"> 1973</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l01974"></a><span class="lineno"> 1974</span>  </div>
<div class="line"><a name="l01975"></a><span class="lineno"> 1975</span>  i = nd6_find_destination_cache_entry(ip6addr);</div>
<div class="line"><a name="l01976"></a><span class="lineno"> 1976</span>  <span class="keywordflow">if</span> (i >= 0) {</div>
<div class="line"><a name="l01977"></a><span class="lineno"> 1977</span>  <span class="keywordflow">if</span> (destination_cache[i].pmtu > 0) {</div>
<div class="line"><a name="l01978"></a><span class="lineno"> 1978</span>  <span class="keywordflow">return</span> destination_cache[i].pmtu;</div>
<div class="line"><a name="l01979"></a><span class="lineno"> 1979</span>  }</div>
<div class="line"><a name="l01980"></a><span class="lineno"> 1980</span>  }</div>
<div class="line"><a name="l01981"></a><span class="lineno"> 1981</span>  </div>
<div class="line"><a name="l01982"></a><span class="lineno"> 1982</span>  <span class="keywordflow">if</span> (<a class="code" href="structnetif.html">netif</a> != <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l01983"></a><span class="lineno"> 1983</span>  <span class="keywordflow">return</span> <a class="code" href="structnetif.html">netif</a>-><a class="code" href="structnetif.html#aca7d56b4e0f822b0ced2885f222b8d48">mtu</a>;</div>
<div class="line"><a name="l01984"></a><span class="lineno"> 1984</span>  }</div>
<div class="line"><a name="l01985"></a><span class="lineno"> 1985</span>  </div>
<div class="line"><a name="l01986"></a><span class="lineno"> 1986</span>  <span class="keywordflow">return</span> 1280; <span class="comment">/* Minimum MTU */</span></div>
<div class="line"><a name="l01987"></a><span class="lineno"> 1987</span> }</div>
<div class="line"><a name="l01988"></a><span class="lineno"> 1988</span>  </div>
<div class="line"><a name="l01989"></a><span class="lineno"> 1989</span>  </div>
<div class="line"><a name="l01990"></a><span class="lineno"> 1990</span> <span class="preprocessor">#if LWIP_ND6_TCP_REACHABILITY_HINTS</span></div>
<div class="line"><a name="l01991"></a><span class="lineno"> 1991</span>  </div>
<div class="line"><a name="l02000"></a><span class="lineno"> 2000</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l02001"></a><span class="lineno"> 2001</span> nd6_reachability_hint(<span class="keyword">const</span> ip6_addr_t *ip6addr)</div>
<div class="line"><a name="l02002"></a><span class="lineno"> 2002</span> {</div>
<div class="line"><a name="l02003"></a><span class="lineno"> 2003</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> i;</div>
<div class="line"><a name="l02004"></a><span class="lineno"> 2004</span>  </div>
<div class="line"><a name="l02005"></a><span class="lineno"> 2005</span>  <span class="comment">/* Find destination in cache. */</span></div>
<div class="line"><a name="l02006"></a><span class="lineno"> 2006</span>  <span class="keywordflow">if</span> (ip6_addr_cmp(ip6addr, &(destination_cache[nd6_cached_destination_index].destination_addr))) {</div>
<div class="line"><a name="l02007"></a><span class="lineno"> 2007</span>  i = nd6_cached_destination_index;</div>
<div class="line"><a name="l02008"></a><span class="lineno"> 2008</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.cachehit);</div>
<div class="line"><a name="l02009"></a><span class="lineno"> 2009</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02010"></a><span class="lineno"> 2010</span>  i = nd6_find_destination_cache_entry(ip6addr);</div>
<div class="line"><a name="l02011"></a><span class="lineno"> 2011</span>  }</div>
<div class="line"><a name="l02012"></a><span class="lineno"> 2012</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l02013"></a><span class="lineno"> 2013</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02014"></a><span class="lineno"> 2014</span>  }</div>
<div class="line"><a name="l02015"></a><span class="lineno"> 2015</span>  </div>
<div class="line"><a name="l02016"></a><span class="lineno"> 2016</span>  <span class="comment">/* Find next hop neighbor in cache. */</span></div>
<div class="line"><a name="l02017"></a><span class="lineno"> 2017</span>  <span class="keywordflow">if</span> (ip6_addr_cmp(&(destination_cache[i].next_hop_addr), &(neighbor_cache[nd6_cached_neighbor_index].next_hop_address))) {</div>
<div class="line"><a name="l02018"></a><span class="lineno"> 2018</span>  i = nd6_cached_neighbor_index;</div>
<div class="line"><a name="l02019"></a><span class="lineno"> 2019</span>  <a class="code" href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a>(nd6.cachehit);</div>
<div class="line"><a name="l02020"></a><span class="lineno"> 2020</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02021"></a><span class="lineno"> 2021</span>  i = nd6_find_neighbor_cache_entry(&(destination_cache[i].next_hop_addr));</div>
<div class="line"><a name="l02022"></a><span class="lineno"> 2022</span>  }</div>
<div class="line"><a name="l02023"></a><span class="lineno"> 2023</span>  <span class="keywordflow">if</span> (i < 0) {</div>
<div class="line"><a name="l02024"></a><span class="lineno"> 2024</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02025"></a><span class="lineno"> 2025</span>  }</div>
<div class="line"><a name="l02026"></a><span class="lineno"> 2026</span>  </div>
<div class="line"><a name="l02027"></a><span class="lineno"> 2027</span>  <span class="comment">/* For safety: don't set as reachable if we don't have a LL address yet. Misuse protection. */</span></div>
<div class="line"><a name="l02028"></a><span class="lineno"> 2028</span>  <span class="keywordflow">if</span> (neighbor_cache[i].state == ND6_INCOMPLETE || neighbor_cache[i].state == ND6_NO_ENTRY) {</div>
<div class="line"><a name="l02029"></a><span class="lineno"> 2029</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l02030"></a><span class="lineno"> 2030</span>  }</div>
<div class="line"><a name="l02031"></a><span class="lineno"> 2031</span>  </div>
<div class="line"><a name="l02032"></a><span class="lineno"> 2032</span>  <span class="comment">/* Set reachability state. */</span></div>
<div class="line"><a name="l02033"></a><span class="lineno"> 2033</span>  neighbor_cache[i].state = ND6_REACHABLE;</div>
<div class="line"><a name="l02034"></a><span class="lineno"> 2034</span>  neighbor_cache[i].counter.reachable_time = reachable_time;</div>
<div class="line"><a name="l02035"></a><span class="lineno"> 2035</span> }</div>
<div class="line"><a name="l02036"></a><span class="lineno"> 2036</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ND6_TCP_REACHABILITY_HINTS */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02037"></a><span class="lineno"> 2037</span>  </div>
<div class="line"><a name="l02043"></a><span class="lineno"> 2043</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l02044"></a><span class="lineno"> 2044</span> nd6_cleanup_netif(<span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>)</div>
<div class="line"><a name="l02045"></a><span class="lineno"> 2045</span> {</div>
<div class="line"><a name="l02046"></a><span class="lineno"> 2046</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> i;</div>
<div class="line"><a name="l02047"></a><span class="lineno"> 2047</span>  <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> router_index;</div>
<div class="line"><a name="l02048"></a><span class="lineno"> 2048</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ad9cc576b5951f1b5e1c2b0d0bb831d9a">LWIP_ND6_NUM_PREFIXES</a>; i++) {</div>
<div class="line"><a name="l02049"></a><span class="lineno"> 2049</span>  <span class="keywordflow">if</span> (prefix_list[i].<a class="code" href="structnetif.html">netif</a> == <a class="code" href="structnetif.html">netif</a>) {</div>
<div class="line"><a name="l02050"></a><span class="lineno"> 2050</span>  prefix_list[i].netif = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l02051"></a><span class="lineno"> 2051</span>  prefix_list[i].flags = 0;</div>
<div class="line"><a name="l02052"></a><span class="lineno"> 2052</span>  }</div>
<div class="line"><a name="l02053"></a><span class="lineno"> 2053</span>  }</div>
<div class="line"><a name="l02054"></a><span class="lineno"> 2054</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a>; i++) {</div>
<div class="line"><a name="l02055"></a><span class="lineno"> 2055</span>  <span class="keywordflow">if</span> (neighbor_cache[i].<a class="code" href="structnetif.html">netif</a> == <a class="code" href="structnetif.html">netif</a>) {</div>
<div class="line"><a name="l02056"></a><span class="lineno"> 2056</span>  <span class="keywordflow">for</span> (router_index = 0; router_index < <a class="code" href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a>; router_index++) {</div>
<div class="line"><a name="l02057"></a><span class="lineno"> 2057</span>  <span class="keywordflow">if</span> (default_router_list[router_index].neighbor_entry == &neighbor_cache[i]) {</div>
<div class="line"><a name="l02058"></a><span class="lineno"> 2058</span>  default_router_list[router_index].neighbor_entry = <a class="code" href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l02059"></a><span class="lineno"> 2059</span>  default_router_list[router_index].flags = 0;</div>
<div class="line"><a name="l02060"></a><span class="lineno"> 2060</span>  }</div>
<div class="line"><a name="l02061"></a><span class="lineno"> 2061</span>  }</div>
<div class="line"><a name="l02062"></a><span class="lineno"> 2062</span>  neighbor_cache[i].isrouter = 0;</div>
<div class="line"><a name="l02063"></a><span class="lineno"> 2063</span>  nd6_free_neighbor_cache_entry(i);</div>
<div class="line"><a name="l02064"></a><span class="lineno"> 2064</span>  }</div>
<div class="line"><a name="l02065"></a><span class="lineno"> 2065</span>  }</div>
<div class="line"><a name="l02066"></a><span class="lineno"> 2066</span> }</div>
<div class="line"><a name="l02067"></a><span class="lineno"> 2067</span>  </div>
<div class="line"><a name="l02068"></a><span class="lineno"> 2068</span> <span class="preprocessor">#if LWIP_IPV6_MLD</span></div>
<div class="line"><a name="l02069"></a><span class="lineno"> 2069</span>  </div>
<div class="line"><a name="l02077"></a><span class="lineno"> 2077</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l02078"></a><span class="lineno"> 2078</span> nd6_adjust_mld_membership(<span class="keyword">struct</span> <a class="code" href="structnetif.html">netif</a> *<a class="code" href="structnetif.html">netif</a>, <a class="code" href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a> addr_idx, <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> new_state)</div>
<div class="line"><a name="l02079"></a><span class="lineno"> 2079</span> {</div>
<div class="line"><a name="l02080"></a><span class="lineno"> 2080</span>  <a class="code" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> old_state, old_member, new_member;</div>
<div class="line"><a name="l02081"></a><span class="lineno"> 2081</span>  </div>
<div class="line"><a name="l02082"></a><span class="lineno"> 2082</span>  old_state = netif_ip6_addr_state(<a class="code" href="structnetif.html">netif</a>, addr_idx);</div>
<div class="line"><a name="l02083"></a><span class="lineno"> 2083</span>  </div>
<div class="line"><a name="l02084"></a><span class="lineno"> 2084</span>  <span class="comment">/* Determine whether we were, and should be, a member of the solicited-node</span></div>
<div class="line"><a name="l02085"></a><span class="lineno"> 2085</span> <span class="comment"> * multicast group for this address. For tentative addresses, the group is</span></div>
<div class="line"><a name="l02086"></a><span class="lineno"> 2086</span> <span class="comment"> * not joined until the address enters the TENTATIVE_1 (or VALID) state. */</span></div>
<div class="line"><a name="l02087"></a><span class="lineno"> 2087</span>  old_member = (old_state != IP6_ADDR_INVALID && old_state != IP6_ADDR_TENTATIVE);</div>
<div class="line"><a name="l02088"></a><span class="lineno"> 2088</span>  new_member = (new_state != IP6_ADDR_INVALID && new_state != IP6_ADDR_TENTATIVE);</div>
<div class="line"><a name="l02089"></a><span class="lineno"> 2089</span>  </div>
<div class="line"><a name="l02090"></a><span class="lineno"> 2090</span>  <span class="keywordflow">if</span> (old_member != new_member) {</div>
<div class="line"><a name="l02091"></a><span class="lineno"> 2091</span>  ip6_addr_set_solicitednode(&multicast_address, netif_ip6_addr(<a class="code" href="structnetif.html">netif</a>, addr_idx)->addr[3]);</div>
<div class="line"><a name="l02092"></a><span class="lineno"> 2092</span>  </div>
<div class="line"><a name="l02093"></a><span class="lineno"> 2093</span>  <span class="keywordflow">if</span> (new_member) {</div>
<div class="line"><a name="l02094"></a><span class="lineno"> 2094</span>  mld6_joingroup_netif(<a class="code" href="structnetif.html">netif</a>, &multicast_address);</div>
<div class="line"><a name="l02095"></a><span class="lineno"> 2095</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l02096"></a><span class="lineno"> 2096</span>  mld6_leavegroup_netif(<a class="code" href="structnetif.html">netif</a>, &multicast_address);</div>
<div class="line"><a name="l02097"></a><span class="lineno"> 2097</span>  }</div>
<div class="line"><a name="l02098"></a><span class="lineno"> 2098</span>  }</div>
<div class="line"><a name="l02099"></a><span class="lineno"> 2099</span> }</div>
<div class="line"><a name="l02100"></a><span class="lineno"> 2100</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6_MLD */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l02101"></a><span class="lineno"> 2101</span>  </div>
<div class="line"><a name="l02102"></a><span class="lineno"> 2102</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_IPV6 */</span><span class="preprocessor"></span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="alwipopts_8h_html_a9f9881c887a8aceb9765820c2dbdf292"><div class="ttname"><a href="lwipopts_8h.html#a9f9881c887a8aceb9765820c2dbdf292">DNS_MAX_SERVERS</a></div><div class="ttdeci">#define DNS_MAX_SERVERS</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00160">lwipopts.h:160</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_gac05a82d37afb251470f5e17ca15ab6e9"><div class="ttname"><a href="group__compiler__abstraction.html#gac05a82d37afb251470f5e17ca15ab6e9">S16_F</a></div><div class="ttdeci">#define S16_F</div><div class="ttdef"><b>Definition:</b> <a href="arch_8h_source.html#l00151">arch.h:151</a></div></div>
<div class="ttc" id="aopt_8h_html"><div class="ttname"><a href="opt_8h.html">opt.h</a></div></div>
<div class="ttc" id="aip__addr_8h_html_a008c9c92d770cc030ea054e6b259835a"><div class="ttname"><a href="ip__addr_8h.html#a008c9c92d770cc030ea054e6b259835a">ip_addr_cmp</a></div><div class="ttdeci">#define ip_addr_cmp(addr1, addr2)</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00316">ip_addr.h:316</a></div></div>
<div class="ttc" id="agroup__netif__flags_html_gab47d7d130693dc155f480a5bf447725e"><div class="ttname"><a href="group__netif__flags.html#gab47d7d130693dc155f480a5bf447725e">NETIF_FLAG_UP</a></div><div class="ttdeci">#define NETIF_FLAG_UP</div><div class="ttdef"><b>Definition:</b> <a href="netif_8h_source.html#l00086">netif.h:86</a></div></div>
<div class="ttc" id="astructpbuf_html_a6f82449625e36e294f5d210268c0703f"><div class="ttname"><a href="structpbuf.html#a6f82449625e36e294f5d210268c0703f">pbuf::len</a></div><div class="ttdeci">u16_t len</div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8h_source.html#l00159">pbuf.h:159</a></div></div>
<div class="ttc" id="astructrs__header_html"><div class="ttname"><a href="structrs__header.html">rs_header</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00093">nd6.h:93</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ggaee1baa59bb2f85ba575b5a8619ac1ebfab4de441e737330558b609a990cd17346"><div class="ttname"><a href="group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfab4de441e737330558b609a990cd17346">PBUF_LINK</a></div><div class="ttdef"><b>Definition:</b> <a href="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="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="arch_8h_source.html#l00125">arch.h:125</a></div></div>
<div class="ttc" id="astructra__header_html"><div class="ttname"><a href="structra__header.html">ra_header</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00118">nd6.h:118</a></div></div>
<div class="ttc" id="ashell_8c_html_aff2566f4c366b48d73479bef43ee4d2e"><div class="ttname"><a href="shell_8c.html#aff2566f4c366b48d73479bef43ee4d2e">buffer</a></div><div class="ttdeci">char * buffer</div><div class="ttdef"><b>Definition:</b> <a href="shell_8c_source.html#l00047">shell.c:47</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html_a5714faec71a571f2334ed750a33c61a2"><div class="ttname"><a href="prot_2nd6_8h.html#a5714faec71a571f2334ed750a33c61a2">ND6_PREFIX_FLAG_ON_LINK</a></div><div class="ttdeci">#define ND6_PREFIX_FLAG_ON_LINK</div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00172">nd6.h:172</a></div></div>
<div class="ttc" id="and6_8h_html"><div class="ttname"><a href="nd6_8h.html">nd6.h</a></div></div>
<div class="ttc" id="adebug_8h_html_a94ad086267808462beae2b38f91996ed"><div class="ttname"><a href="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="debug_8h_source.html#l00116">debug.h:116</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a315bd6d4a9d185766dfc3253cd9d7715"><div class="ttname"><a href="lwipopts_8h.html#a315bd6d4a9d185766dfc3253cd9d7715">LWIP_ND6_DELAY_FIRST_PROBE_TIME</a></div><div class="ttdeci">#define LWIP_ND6_DELAY_FIRST_PROBE_TIME</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00392">lwipopts.h:392</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ggab7e0e32fcc292c0d7107721766ed92fbac120b0fe39efe35bb682e4aa3b82e2c9"><div class="ttname"><a href="group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac120b0fe39efe35bb682e4aa3b82e2c9">PBUF_ROM</a></div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8h_source.html#l00112">pbuf.h:112</a></div></div>
<div class="ttc" id="aprot_2icmp6_8h_html_a6e10428d8f6102013b30013065716858a670d95494c9282f646ac442d81d9a780"><div class="ttname"><a href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a670d95494c9282f646ac442d81d9a780">ICMP6_TYPE_RS</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2icmp6_8h_source.html#l00074">icmp6.h:74</a></div></div>
<div class="ttc" id="apbuf_8h_html"><div class="ttname"><a href="pbuf_8h.html">pbuf.h</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html_a3188b9704a8ca598f54b87c3db73272e"><div class="ttname"><a href="prot_2nd6_8h.html#a3188b9704a8ca598f54b87c3db73272e">ND6_OPTION_TYPE_RDNSS</a></div><div class="ttdeci">#define ND6_OPTION_TYPE_RDNSS</div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00256">nd6.h:256</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_ggae2e66c7d13afc90ffecd6151680fbadca05c91366f1b5203a5db9a241b415cd63"><div class="ttname"><a href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadca05c91366f1b5203a5db9a241b415cd63">ERR_BUF</a></div><div class="ttdef"><b>Definition:</b> <a href="err_8h_source.html#l00067">err.h:67</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga77570ac4fcab86864fa1916e55676da2"><div class="ttname"><a href="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="arch_8h_source.html#l00124">arch.h:124</a></div></div>
<div class="ttc" id="astring_8h_html"><div class="ttname"><a href="string_8h.html">string.h</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ggaee1baa59bb2f85ba575b5a8619ac1ebfafcc1e506061ba69dfa142eb6b3da5f13"><div class="ttname"><a href="group__pbuf.html#ggaee1baa59bb2f85ba575b5a8619ac1ebfafcc1e506061ba69dfa142eb6b3da5f13">PBUF_IP</a></div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8h_source.html#l00080">pbuf.h:80</a></div></div>
<div class="ttc" id="astructpbuf_html_a5259e7ec29bab9c0999b64f2e86b411f"><div class="ttname"><a href="structpbuf.html#a5259e7ec29bab9c0999b64f2e86b411f">pbuf::tot_len</a></div><div class="ttdeci">u16_t tot_len</div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8h_source.html#l00156">pbuf.h:156</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a75e81a96148f266c8fad8c0bcab2f36a"><div class="ttname"><a href="lwipopts_8h.html#a75e81a96148f266c8fad8c0bcab2f36a">LWIP_ND6_NUM_ROUTERS</a></div><div class="ttdeci">#define LWIP_ND6_NUM_ROUTERS</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00384">lwipopts.h:384</a></div></div>
<div class="ttc" id="astats_8h_html_a5c508f5734163d7ce6ac7c1227500867"><div class="ttname"><a href="stats_8h.html#a5c508f5734163d7ce6ac7c1227500867">ND6_STATS_INC</a></div><div class="ttdeci">#define ND6_STATS_INC(x)</div><div class="ttdef"><b>Definition:</b> <a href="stats_8h_source.html#l00460">stats.h:460</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga4c14294869aceba3ef9d4c0c302d0f33"><div class="ttname"><a href="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="arch_8h_source.html#l00126">arch.h:126</a></div></div>
<div class="ttc" id="astructnetif_html_a809cc57c0dff09c5c9ae45b02c2002f3"><div class="ttname"><a href="structnetif.html#a809cc57c0dff09c5c9ae45b02c2002f3">netif::state</a></div><div class="ttdeci">void * state</div><div class="ttdef"><b>Definition:</b> <a href="netif_8h_source.html#l00287">netif.h:287</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a273ed2e1a4e6a43713a0e4a06a34ee5c"><div class="ttname"><a href="lwipopts_8h.html#a273ed2e1a4e6a43713a0e4a06a34ee5c">LWIP_IPV6_SEND_ROUTER_SOLICIT</a></div><div class="ttdeci">#define LWIP_IPV6_SEND_ROUTER_SOLICIT</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00371">lwipopts.h:371</a></div></div>
<div class="ttc" id="aprot_2icmp6_8h_html_a6e10428d8f6102013b30013065716858a1d52ef5024a5822bd622bcb0b9da323d"><div class="ttname"><a href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a1d52ef5024a5822bd622bcb0b9da323d">ICMP6_TYPE_PTB</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2icmp6_8h_source.html#l00051">icmp6.h:51</a></div></div>
<div class="ttc" id="astructpbuf_html_a5e5763c94fd18d78937b0b58ce7df341"><div class="ttname"><a href="structpbuf.html#a5e5763c94fd18d78937b0b58ce7df341">pbuf::next</a></div><div class="ttdeci">struct pbuf * next</div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8h_source.html#l00144">pbuf.h:144</a></div></div>
<div class="ttc" id="agroup__pbuf_html_gab0dd696fb4b6bc65e548944584f1738b"><div class="ttname"><a href="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="pbuf_8c_source.html#l00715">pbuf.c:715</a></div></div>
<div class="ttc" id="astructredirect__header_html"><div class="ttname"><a href="structredirect__header.html">redirect_header</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00139">nd6.h:139</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html_a787edcc6357686798581dd714d68c8c1"><div class="ttname"><a href="prot_2nd6_8h.html#a787edcc6357686798581dd714d68c8c1">ND6_OPTION_TYPE_TARGET_LLADDR</a></div><div class="ttdeci">#define ND6_OPTION_TYPE_TARGET_LLADDR</div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00155">nd6.h:155</a></div></div>
<div class="ttc" id="astructnetif_html_aca7d56b4e0f822b0ced2885f222b8d48"><div class="ttname"><a href="structnetif.html#aca7d56b4e0f822b0ced2885f222b8d48">netif::mtu</a></div><div class="ttdeci">u16_t mtu</div><div class="ttdef"><b>Definition:</b> <a href="netif_8h_source.html#l00307">netif.h:307</a></div></div>
<div class="ttc" id="amemp_8h_html_a2b00593d086313c267b54a976bf67aa5"><div class="ttname"><a href="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="memp_8c_source.html#l00385">memp.c:385</a></div></div>
<div class="ttc" id="agroup__debugging__levels_html_ga988147559b78642ac881815b66023646"><div class="ttname"><a href="group__debugging__levels.html#ga988147559b78642ac881815b66023646">LWIP_DBG_TRACE</a></div><div class="ttdeci">#define LWIP_DBG_TRACE</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00083">debug.h:83</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a82193577b4045e1ac1533c4341a2bd79"><div class="ttname"><a href="lwipopts_8h.html#a82193577b4045e1ac1533c4341a2bd79">LWIP_ICMP6_HL</a></div><div class="ttdeci">#define LWIP_ICMP6_HL</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00376">lwipopts.h:376</a></div></div>
<div class="ttc" id="astructnetif_html_a1c171db6097bbb6f09f63549a66e00ea"><div class="ttname"><a href="structnetif.html#a1c171db6097bbb6f09f63549a66e00ea">netif::flags</a></div><div class="ttdeci">u8_t flags</div><div class="ttdef"><b>Definition:</b> <a href="netif_8h_source.html#l00313">netif.h:313</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html_a37fb4993bbbf3c4886291d38b1c03393"><div class="ttname"><a href="prot_2nd6_8h.html#a37fb4993bbbf3c4886291d38b1c03393">ND6_FLAG_OVERRIDE</a></div><div class="ttdeci">#define ND6_FLAG_OVERRIDE</div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00086">nd6.h:86</a></div></div>
<div class="ttc" id="astructrdnss__option_html"><div class="ttname"><a href="structrdnss__option.html">rdnss_option</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00261">nd6.h:261</a></div></div>
<div class="ttc" id="adef_8h_html_a748f5df614a3fc989e8900fd229d6e4e"><div class="ttname"><a href="def_8h.html#a748f5df614a3fc989e8900fd229d6e4e">LWIP_MIN</a></div><div class="ttdeci">#define LWIP_MIN(x, y)</div><div class="ttdef"><b>Definition:</b> <a href="def_8h_source.html#l00055">def.h:55</a></div></div>
<div class="ttc" id="amemp_8h_html_aecd94926b7c2a0e23ae195f4ae97581f"><div class="ttname"><a href="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="memp_8c_source.html#l00469">memp.c:469</a></div></div>
<div class="ttc" id="anetif_8h_html_ad968df1b35c2fae368e087966e3bc677"><div class="ttname"><a href="netif_8h.html#ad968df1b35c2fae368e087966e3bc677">IF__NETIF_CHECKSUM_ENABLED</a></div><div class="ttdeci">#define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag)</div><div class="ttdef"><b>Definition:</b> <a href="netif_8h_source.html#l00357">netif.h:357</a></div></div>
<div class="ttc" id="adef_8h_html_ae4027a6ad07f13aa12eab285a1b46019"><div class="ttname"><a href="def_8h.html#ae4027a6ad07f13aa12eab285a1b46019">htonl</a></div><div class="ttdeci">#define htonl(x)</div><div class="ttdef"><b>Definition:</b> <a href="def_8h_source.html#l00110">def.h:110</a></div></div>
<div class="ttc" id="astructlladdr__option_html"><div class="ttname"><a href="structlladdr__option.html">lladdr_option</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00160">nd6.h:160</a></div></div>
<div class="ttc" id="astats_8h_html"><div class="ttname"><a href="stats_8h.html">stats.h</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05"><div class="ttname"><a href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaaaeafdbf3aecc46864daa3cd829c7e05">ERR_MEM</a></div><div class="ttdef"><b>Definition:</b> <a href="err_8h_source.html#l00065">err.h:65</a></div></div>
<div class="ttc" id="agroup__pbuf_html_gac2f1f58fd36042e82af46f5015720899"><div class="ttname"><a href="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="pbuf_8c_source.html#l01016">pbuf.c:1016</a></div></div>
<div class="ttc" id="aicmp6_8h_html"><div class="ttname"><a href="icmp6_8h.html">icmp6.h</a></div></div>
<div class="ttc" id="astructnetif_html_aee967965d999fc1a4c40a66709304e69"><div class="ttname"><a href="structnetif.html#aee967965d999fc1a4c40a66709304e69">netif::hwaddr</a></div><div class="ttdeci">u8_t hwaddr[6U]</div><div class="ttdef"><b>Definition:</b> <a href="netif_8h_source.html#l00311">netif.h:311</a></div></div>
<div class="ttc" id="anetif_8h_html"><div class="ttname"><a href="netif_8h.html">netif.h</a></div></div>
<div class="ttc" id="alwipopts_8h_html_ab2fe15bdb4e0a41f295eb5577b11ad16"><div class="ttname"><a href="lwipopts_8h.html#ab2fe15bdb4e0a41f295eb5577b11ad16">LWIP_ND6_NUM_NEIGHBORS</a></div><div class="ttdeci">#define LWIP_ND6_NUM_NEIGHBORS</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00381">lwipopts.h:381</a></div></div>
<div class="ttc" id="amld6_8h_html"><div class="ttname"><a href="mld6_8h.html">mld6.h</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html_ae6bf6657a8a6b004681948090dfa2d7c"><div class="ttname"><a href="prot_2nd6_8h.html#ae6bf6657a8a6b004681948090dfa2d7c">ND6_FLAG_SOLICITED</a></div><div class="ttdeci">#define ND6_FLAG_SOLICITED</div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00085">nd6.h:85</a></div></div>
<div class="ttc" id="agroup__pbuf_html_gacfcb0a2af918658ba0afe36499c65f47"><div class="ttname"><a href="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="pbuf_8c_source.html#l00248">pbuf.c:248</a></div></div>
<div class="ttc" id="aprot_2icmp6_8h_html_a6e10428d8f6102013b30013065716858ae4ae04be7df3a2cce614af0a5cdae951"><div class="ttname"><a href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858ae4ae04be7df3a2cce614af0a5cdae951">ICMP6_TYPE_RA</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2icmp6_8h_source.html#l00076">icmp6.h:76</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga4caecabca98b43919dd11be1c0d4cd8e"><div class="ttname"><a href="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="arch_8h_source.html#l00122">arch.h:122</a></div></div>
<div class="ttc" id="aip__addr_8h_html_a88b43639738c4de2d3cd22e3a1fd7696"><div class="ttname"><a href="ip__addr_8h.html#a88b43639738c4de2d3cd22e3a1fd7696">ip_addr_t</a></div><div class="ttdeci">ip6_addr_t ip_addr_t</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00290">ip_addr.h:290</a></div></div>
<div class="ttc" id="aprot_2ip6_8h_html_ab277ee09b6e7200fc1cfe28482b886a6"><div class="ttname"><a href="prot_2ip6_8h.html#ab277ee09b6e7200fc1cfe28482b886a6">IP6_NEXTH_ICMP6</a></div><div class="ttdeci">#define IP6_NEXTH_ICMP6</div><div class="ttdef"><b>Definition:</b> <a href="prot_2ip6_8h_source.html#l00070">ip6.h:70</a></div></div>
<div class="ttc" id="aprot_2icmp6_8h_html_a6e10428d8f6102013b30013065716858a0f6702d62de5f873e0afe7431d878207"><div class="ttname"><a href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a0f6702d62de5f873e0afe7431d878207">ICMP6_TYPE_RD</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2icmp6_8h_source.html#l00082">icmp6.h:82</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html_acc8f3704e72b27a166b120eec5a2665b"><div class="ttname"><a href="prot_2nd6_8h.html#acc8f3704e72b27a166b120eec5a2665b">ND6_PREFIX_FLAG_AUTONOMOUS</a></div><div class="ttdeci">#define ND6_PREFIX_FLAG_AUTONOMOUS</div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00173">nd6.h:173</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html"><div class="ttname"><a href="prot_2nd6_8h.html">nd6.h</a></div></div>
<div class="ttc" id="astructnetif_html"><div class="ttname"><a href="structnetif.html">netif</a></div><div class="ttdef"><b>Definition:</b> <a href="netif_8h_source.html#l00233">netif.h:233</a></div></div>
<div class="ttc" id="aprot_2icmp6_8h_html_a6e10428d8f6102013b30013065716858a0d8d8717c6c34053d1101932c23929fe"><div class="ttname"><a href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a0d8d8717c6c34053d1101932c23929fe">ICMP6_TYPE_NS</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2icmp6_8h_source.html#l00078">icmp6.h:78</a></div></div>
<div class="ttc" id="astructnetif_html_afe1181561cb16241f3cb5ed01e567d42"><div class="ttname"><a href="structnetif.html#afe1181561cb16241f3cb5ed01e567d42">netif::hwaddr_len</a></div><div class="ttdeci">u8_t hwaddr_len</div><div class="ttdef"><b>Definition:</b> <a href="netif_8h_source.html#l00309">netif.h:309</a></div></div>
<div class="ttc" id="astructicmp6__hdr_html"><div class="ttname"><a href="structicmp6__hdr.html">icmp6_hdr</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2icmp6_8h_source.html#l00138">icmp6.h:138</a></div></div>
<div class="ttc" id="agroup__pbuf_html_gaba88511dee3df4b631fde691f421320d"><div class="ttname"><a href="group__pbuf.html#gaba88511dee3df4b631fde691f421320d">pbuf_copy</a></div><div class="ttdeci">err_t pbuf_copy(struct pbuf *p_to, const struct pbuf *p_from)</div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8c_source.html#l00949">pbuf.c:949</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_ggae2e66c7d13afc90ffecd6151680fbadcab508ce0ebdf3ca735208b00a80a45c91"><div class="ttname"><a href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcab508ce0ebdf3ca735208b00a80a45c91">ERR_ARG</a></div><div class="ttdef"><b>Definition:</b> <a href="err_8h_source.html#l00096">err.h:96</a></div></div>
<div class="ttc" id="adef_8c_html_a14f94347a5b9b9e3602705b75b7ae524"><div class="ttname"><a href="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="def_8c_source.html#l00088">def.c:88</a></div></div>
<div class="ttc" id="alwipopts_8h_html_ad8489522d34f37e42b4001bab3781bcb"><div class="ttname"><a href="lwipopts_8h.html#ad8489522d34f37e42b4001bab3781bcb">LWIP_IPV6_DUP_DETECT_ATTEMPTS</a></div><div class="ttdeci">#define LWIP_IPV6_DUP_DETECT_ATTEMPTS</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00373">lwipopts.h:373</a></div></div>
<div class="ttc" id="adef_8c_html_ad637280639de4066392e6b5614fa3e56"><div class="ttname"><a href="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="def_8c_source.html#l00075">def.c:75</a></div></div>
<div class="ttc" id="astructnetif_html_ae77736b64df442242795220d76be6b86"><div class="ttname"><a href="structnetif.html#ae77736b64df442242795220d76be6b86">netif::next</a></div><div class="ttdeci">struct netif * next</div><div class="ttdef"><b>Definition:</b> <a href="netif_8h_source.html#l00235">netif.h:235</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga9cd1d7891fe315de1201e2c6e45f4f57"><div class="ttname"><a href="group__compiler__abstraction.html#ga9cd1d7891fe315de1201e2c6e45f4f57">s8_t</a></div><div class="ttdeci">int8_t s8_t</div><div class="ttdef"><b>Definition:</b> <a href="arch_8h_source.html#l00123">arch.h:123</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ga77f6bbd69e45e542014d9c547c7da74e"><div class="ttname"><a href="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="pbuf_8c_source.html#l00821">pbuf.c:821</a></div></div>
<div class="ttc" id="agroup__pbuf_html_ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab"><div class="ttname"><a href="group__pbuf.html#ggab7e0e32fcc292c0d7107721766ed92fbac5e9f28455bca98944a030d4b84ecfab">PBUF_RAM</a></div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8h_source.html#l00108">pbuf.h:108</a></div></div>
<div class="ttc" id="anetif_8h_html_a1c8141eaa98f6dc6dfddbb23a706656c"><div class="ttname"><a href="netif_8h.html#a1c8141eaa98f6dc6dfddbb23a706656c">netif_list</a></div><div class="ttdeci">struct netif * netif_list</div><div class="ttdef"><b>Definition:</b> <a href="netif_8c_source.html#l00104">netif.c:104</a></div></div>
<div class="ttc" id="astructmtu__option_html"><div class="ttname"><a href="structmtu__option.html">mtu_option</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00220">nd6.h:220</a></div></div>
<div class="ttc" id="aip__addr_8h_html_abe6f7908ce8a91dc587e2ebc2172e651"><div class="ttname"><a href="ip__addr_8h.html#abe6f7908ce8a91dc587e2ebc2172e651">ip_addr_copy_from_ip6</a></div><div class="ttdeci">#define ip_addr_copy_from_ip6(dest, src)</div><div class="ttdef"><b>Definition:</b> <a href="ip__addr_8h_source.html#l00306">ip_addr.h:306</a></div></div>
<div class="ttc" id="aprot_2icmp6_8h_html"><div class="ttname"><a href="prot_2icmp6_8h.html">icmp6.h</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb"><div class="ttname"><a href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a></div><div class="ttdef"><b>Definition:</b> <a href="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="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="err_8h_source.html#l00057">err.h:57</a></div></div>
<div class="ttc" id="aip_8h_html"><div class="ttname"><a href="ip_8h.html">ip.h</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html_a68ce8550a20cd30093d6e79e1ca51842"><div class="ttname"><a href="prot_2nd6_8h.html#a68ce8550a20cd30093d6e79e1ca51842">ND6_OPTION_TYPE_SOURCE_LLADDR</a></div><div class="ttdeci">#define ND6_OPTION_TYPE_SOURCE_LLADDR</div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00154">nd6.h:154</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html_aab6c15c9bea51fbdcc660f718bb403a8"><div class="ttname"><a href="prot_2nd6_8h.html#aab6c15c9bea51fbdcc660f718bb403a8">ND6_OPTION_TYPE_MTU</a></div><div class="ttdeci">#define ND6_OPTION_TYPE_MTU</div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00215">nd6.h:215</a></div></div>
<div class="ttc" id="alwipopts_8h_html_ad9cc576b5951f1b5e1c2b0d0bb831d9a"><div class="ttname"><a href="lwipopts_8h.html#ad9cc576b5951f1b5e1c2b0d0bb831d9a">LWIP_ND6_NUM_PREFIXES</a></div><div class="ttdeci">#define LWIP_ND6_NUM_PREFIXES</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00383">lwipopts.h:383</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a461abcbeef1d236d1f3201827dd28ad9"><div class="ttname"><a href="lwipopts_8h.html#a461abcbeef1d236d1f3201827dd28ad9">LWIP_ND6_RETRANS_TIMER</a></div><div class="ttdeci">#define LWIP_ND6_RETRANS_TIMER</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00390">lwipopts.h:390</a></div></div>
<div class="ttc" id="astructns__header_html"><div class="ttname"><a href="structns__header.html">ns_header</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00053">nd6.h:53</a></div></div>
<div class="ttc" id="aprot_2ip6_8h_html_afb4c1dc527be76d8f27591dfb726c023"><div class="ttname"><a href="prot_2ip6_8h.html#afb4c1dc527be76d8f27591dfb726c023">IP6_HLEN</a></div><div class="ttdeci">#define IP6_HLEN</div><div class="ttdef"><b>Definition:</b> <a href="prot_2ip6_8h_source.html#l00062">ip6.h:62</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a269db9d61cdfc2fd3bc7b12c56261c74"><div class="ttname"><a href="lwipopts_8h.html#a269db9d61cdfc2fd3bc7b12c56261c74">LWIP_ND6_REACHABLE_TIME</a></div><div class="ttdeci">#define LWIP_ND6_REACHABLE_TIME</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00389">lwipopts.h:389</a></div></div>
<div class="ttc" id="astructna__header_html"><div class="ttname"><a href="structna__header.html">na_header</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00071">nd6.h:71</a></div></div>
<div class="ttc" id="aip6__addr_8h_html"><div class="ttname"><a href="ip6__addr_8h.html">ip6_addr.h</a></div></div>
<div class="ttc" id="alwipopts_8h_html_aa1dd57a66b6de8c0593e9e3e8d1411f6"><div class="ttname"><a href="lwipopts_8h.html#aa1dd57a66b6de8c0593e9e3e8d1411f6">MEMCPY</a></div><div class="ttdeci">#define MEMCPY(dst, src, len)</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00043">lwipopts.h:43</a></div></div>
<div class="ttc" id="and6__priv_8h_html"><div class="ttname"><a href="nd6__priv_8h.html">nd6_priv.h</a></div></div>
<div class="ttc" id="astructprefix__option_html"><div class="ttname"><a href="structprefix__option.html">prefix_option</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00180">nd6.h:180</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html_aff2e03766ee1fa15263c4aeda5097d28"><div class="ttname"><a href="prot_2nd6_8h.html#aff2e03766ee1fa15263c4aeda5097d28">ND6_OPTION_TYPE_ROUTE_INFO</a></div><div class="ttdeci">#define ND6_OPTION_TYPE_ROUTE_INFO</div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00232">nd6.h:232</a></div></div>
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<div class="ttc" id="astructpbuf_html_afd7bff5210a022424caa97d2f25fe8e6"><div class="ttname"><a href="structpbuf.html#afd7bff5210a022424caa97d2f25fe8e6">pbuf::type</a></div><div class="ttdeci">u8_t type</div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8h_source.html#l00162">pbuf.h:162</a></div></div>
<div class="ttc" id="alwipopts_8h_html_acad118b1ae886e80137a1d4f0fb19672"><div class="ttname"><a href="lwipopts_8h.html#acad118b1ae886e80137a1d4f0fb19672">LWIP_ND6_NUM_DESTINATIONS</a></div><div class="ttdeci">#define LWIP_ND6_NUM_DESTINATIONS</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00382">lwipopts.h:382</a></div></div>
<div class="ttc" id="amem_8h_html"><div class="ttname"><a href="mem_8h.html">mem.h</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_ggae2e66c7d13afc90ffecd6151680fbadca9448893187313c0c5a502ca9a9ad1c2a"><div class="ttname"><a href="group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadca9448893187313c0c5a502ca9a9ad1c2a">ERR_RTE</a></div><div class="ttdef"><b>Definition:</b> <a href="err_8h_source.html#l00071">err.h:71</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a8c6e3c1e4f74acb16376188dbf8909ec"><div class="ttname"><a href="lwipopts_8h.html#a8c6e3c1e4f74acb16376188dbf8909ec">SMEMCPY</a></div><div class="ttdeci">#define SMEMCPY(dst, src, len)</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00044">lwipopts.h:44</a></div></div>
<div class="ttc" id="adns_8h_html"><div class="ttname"><a href="dns_8h.html">dns.h</a></div></div>
<div class="ttc" id="astructip6__hdr_html"><div class="ttname"><a href="structip6__hdr.html">ip6_hdr</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2ip6_8h_source.html#l00080">ip6.h:80</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a980909018aed54adc10dd68be3572b30"><div class="ttname"><a href="lwipopts_8h.html#a980909018aed54adc10dd68be3572b30">LWIP_ND6_MAX_MULTICAST_SOLICIT</a></div><div class="ttdeci">#define LWIP_ND6_MAX_MULTICAST_SOLICIT</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00385">lwipopts.h:385</a></div></div>
<div class="ttc" id="astructpbuf_html"><div class="ttname"><a href="structpbuf.html">pbuf</a></div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8h_source.html#l00142">pbuf.h:142</a></div></div>
<div class="ttc" id="adebug_8h_html_a63a04edf7ff63c951bd8706711956cdb"><div class="ttname"><a href="debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a></div><div class="ttdeci">#define LWIP_DEBUGF(debug, message)</div><div class="ttdef"><b>Definition:</b> <a href="debug_8h_source.html#l00164">debug.h:164</a></div></div>
<div class="ttc" id="aip6_8h_html"><div class="ttname"><a href="ip6_8h.html">ip6.h</a></div></div>
<div class="ttc" id="aprot_2icmp6_8h_html_a6e10428d8f6102013b30013065716858a1f99d333f425c28d3840e029cc9c46f3"><div class="ttname"><a href="prot_2icmp6_8h.html#a6e10428d8f6102013b30013065716858a1f99d333f425c28d3840e029cc9c46f3">ICMP6_TYPE_NA</a></div><div class="ttdef"><b>Definition:</b> <a href="prot_2icmp6_8h_source.html#l00080">icmp6.h:80</a></div></div>
<div class="ttc" id="ainet__chksum_8h_html"><div class="ttname"><a href="inet__chksum_8h.html">inet_chksum.h</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a16c1b672604bfb0a66a6aeeb854589d3"><div class="ttname"><a href="lwipopts_8h.html#a16c1b672604bfb0a66a6aeeb854589d3">LWIP_IPV6_NUM_ADDRESSES</a></div><div class="ttdeci">#define LWIP_IPV6_NUM_ADDRESSES</div><div class="ttdef"><b>Definition:</b> <a href="lwipopts_8h_source.html#l00367">lwipopts.h:367</a></div></div>
<div class="ttc" id="astructpbuf_html_a8d32dc3e964369d4eec638fc37fbc460"><div class="ttname"><a href="structpbuf.html#a8d32dc3e964369d4eec638fc37fbc460">pbuf::payload</a></div><div class="ttdeci">void * payload</div><div class="ttdef"><b>Definition:</b> <a href="pbuf_8h_source.html#l00147">pbuf.h:147</a></div></div>
<div class="ttc" id="aprot_2nd6_8h_html_a0225d4c8911efdbdbc2b40de208906c2"><div class="ttname"><a href="prot_2nd6_8h.html#a0225d4c8911efdbdbc2b40de208906c2">ND6_OPTION_TYPE_PREFIX_INFO</a></div><div class="ttdeci">#define ND6_OPTION_TYPE_PREFIX_INFO</div><div class="ttdef"><b>Definition:</b> <a href="prot_2nd6_8h_source.html#l00171">nd6.h:171</a></div></div>
<div class="ttc" id="afat__string_8h_html_a070d2ce7b6bb7e5c05602aa8c308d0c4"><div class="ttname"><a href="fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a></div><div class="ttdeci">#define NULL</div><div class="ttdef"><b>Definition:</b> <a href="fat__string_8h_source.html#l00017">fat_string.h:17</a></div></div>
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