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<div class="title">ip4.h</div> </div>
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<a href="../../de/d0f/prot_2ip4_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>  </div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Copyright (c) 2001-2004 Swedish Institute of Computer Science.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification,</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright notice,</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright notice,</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * this list of conditions and the following disclaimer in the documentation</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * 3. The name of the author may not be used to endorse or promote products</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * derived from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * This file is part of the lwIP TCP/IP stack.</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * Author: Adam Dunkels <adam@sics.se></span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#ifndef LWIP_HDR_PROT_IP4_H</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#define LWIP_HDR_PROT_IP4_H</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include "<a class="code" href="../../d2/d2d/arch_8h.html">net/arch.h</a>"</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#include "<a class="code" href="../../d1/da8/ip4__addr_8h.html">net/ip4_addr.h</a>"</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#ifdef PACK_STRUCT_USE_INCLUDES</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor"># include "arch/bpstruct.h"</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <a class="code" href="../../dc/df0/cc_8h.html#a73199061891adf1b912d20835c7d5e96">PACK_STRUCT_BEGIN</a></div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="../../da/d88/structip4__addr__packed.html"> 53</a></span> <span class="keyword">struct </span><a class="code" href="../../da/d88/structip4__addr__packed.html">ip4_addr_packed</a> {</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="../../da/d88/structip4__addr__packed.html#a829ac9d684c84b953bd111251ea037a6">PACK_STRUCT_FIELD</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4c14294869aceba3ef9d4c0c302d0f33">u32_t</a> addr);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> } <a class="code" href="../../de/d0f/prot_2ip4_8h.html#a7082e3ecbecbf496df63fda29a1e0f06">PACK_STRUCT_STRUCT</a>;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <a class="code" href="../../dc/df0/cc_8h.html#a465fef70f294e21cbf4ea51fc342f20e">PACK_STRUCT_END</a></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#ifdef PACK_STRUCT_USE_INCLUDES</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"># include "arch/epstruct.h"</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#ae5011654fcbadf6b6582b8d49446107f"> 61</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="../../da/d88/structip4__addr__packed.html">ip4_addr_packed</a> <a class="code" href="../../de/d0f/prot_2ip4_8h.html#ae5011654fcbadf6b6582b8d49446107f">ip4_addr_p_t</a>;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment">/* Size of the IPv4 header. Same as 'sizeof(struct ip_hdr)'. */</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#ad76777d4d34f33ab5f715f9ca15503c3"> 64</a></span> <span class="preprocessor">#define IP_HLEN 20</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#ifdef PACK_STRUCT_USE_INCLUDES</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor"># include "arch/bpstruct.h"</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <a class="code" href="../../dc/df0/cc_8h.html#a73199061891adf1b912d20835c7d5e96">PACK_STRUCT_BEGIN</a></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment">/* The IPv4 header */</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="../../da/d9b/structip__hdr.html"> 71</a></span> <span class="keyword">struct </span><a class="code" href="../../da/d9b/structip__hdr.html">ip_hdr</a> {</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="comment">/* version / header length */</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="code" href="../../da/d9b/structip__hdr.html#a2e9a57bb4e23ad0b3b9b949890b2607e">PACK_STRUCT_FLD_8</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> _v_hl);</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="comment">/* type of service */</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <a class="code" href="../../da/d9b/structip__hdr.html#a2e9a57bb4e23ad0b3b9b949890b2607e">PACK_STRUCT_FLD_8</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> _tos);</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="comment">/* total length */</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="../../da/d9b/structip__hdr.html#aa3905f2613b3ce0994d3a04cf22ce2d7">PACK_STRUCT_FIELD</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> _len);</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">/* identification */</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="../../da/d9b/structip__hdr.html#aa3905f2613b3ce0994d3a04cf22ce2d7">PACK_STRUCT_FIELD</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> _id);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="comment">/* fragment offset field */</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="../../da/d9b/structip__hdr.html#aa3905f2613b3ce0994d3a04cf22ce2d7">PACK_STRUCT_FIELD</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> _offset);</div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a895709708f8f909cf7b7459491d549e7"> 82</a></span> <span class="preprocessor">#define IP_RF 0x8000U </span><span class="comment">/* reserved fragment flag */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#ae2473f4a88d141d5298f92a4335b714a"> 83</a></span> <span class="preprocessor">#define IP_DF 0x4000U </span><span class="comment">/* don't fragment flag */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#ae8afe1e04bb9bad791443556c3b2cd73"> 84</a></span> <span class="preprocessor">#define IP_MF 0x2000U </span><span class="comment">/* more fragments flag */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#ad059798b16d1f615b5af8770175121ba"> 85</a></span> <span class="preprocessor">#define IP_OFFMASK 0x1fffU </span><span class="comment">/* mask for fragmenting bits */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">/* time to live */</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="../../da/d9b/structip__hdr.html#a2e9a57bb4e23ad0b3b9b949890b2607e">PACK_STRUCT_FLD_8</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> _ttl);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="comment">/* protocol*/</span></div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="../../da/d9b/structip__hdr.html#a2e9a57bb4e23ad0b3b9b949890b2607e">PACK_STRUCT_FLD_8</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> _proto);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="comment">/* checksum */</span></div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="../../da/d9b/structip__hdr.html#aa3905f2613b3ce0994d3a04cf22ce2d7">PACK_STRUCT_FIELD</a>(<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> _chksum);</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">/* source and destination IP addresses */</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="../../da/d9b/structip__hdr.html#a963b0932198484088775c5aa7446f0c1">PACK_STRUCT_FLD_S</a>(<a class="code" href="../../de/d0f/prot_2ip4_8h.html#ae5011654fcbadf6b6582b8d49446107f">ip4_addr_p_t</a> src);</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <a class="code" href="../../da/d9b/structip__hdr.html#a963b0932198484088775c5aa7446f0c1">PACK_STRUCT_FLD_S</a>(<a class="code" href="../../de/d0f/prot_2ip4_8h.html#ae5011654fcbadf6b6582b8d49446107f">ip4_addr_p_t</a> dest);</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> } <a class="code" href="../../de/d0f/prot_2ip4_8h.html#a7082e3ecbecbf496df63fda29a1e0f06">PACK_STRUCT_STRUCT</a>;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <a class="code" href="../../dc/df0/cc_8h.html#a465fef70f294e21cbf4ea51fc342f20e">PACK_STRUCT_END</a></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor">#ifdef PACK_STRUCT_USE_INCLUDES</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor"># include "arch/epstruct.h"</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment">/* Macros to get struct ip_hdr fields: */</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a05a9e8ecf4eff38244b4c13c7e70094c"> 102</a></span> <span class="preprocessor">#define IPH_V(hdr) ((hdr)->_v_hl >> 4)</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a7c60caeb708571a07a44309c10ec3a01"> 103</a></span> <span class="preprocessor">#define IPH_HL(hdr) ((hdr)->_v_hl & 0x0f)</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a13fb5476ab97db9c5de6c1f5ca0d82e6"> 104</a></span> <span class="preprocessor">#define IPH_TOS(hdr) ((hdr)->_tos)</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#aec0328fe4711b8c1ef4dd6709e4fd6d5"> 105</a></span> <span class="preprocessor">#define IPH_LEN(hdr) ((hdr)->_len)</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#ae79eaecc0bf9e4dbb9e47ea56ad2157a"> 106</a></span> <span class="preprocessor">#define IPH_ID(hdr) ((hdr)->_id)</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a559dce3878f1d6a46bcb4cb312962397"> 107</a></span> <span class="preprocessor">#define IPH_OFFSET(hdr) ((hdr)->_offset)</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a0d8238411ce35a007170f652e62209b3"> 108</a></span> <span class="preprocessor">#define IPH_TTL(hdr) ((hdr)->_ttl)</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#aa2de6f9d35337b4be67d799805665e11"> 109</a></span> <span class="preprocessor">#define IPH_PROTO(hdr) ((hdr)->_proto)</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a773b96f54c75b35bcd24e7f857fcf988"> 110</a></span> <span class="preprocessor">#define IPH_CHKSUM(hdr) ((hdr)->_chksum)</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  </div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment">/* Macros to set struct ip_hdr fields: */</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a037908f4291c62a7336362506cea01af"> 113</a></span> <span class="preprocessor">#define IPH_VHL_SET(hdr, v, hl) (hdr)->_v_hl = (u8_t)((((v) << 4) | (hl)))</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#af4e4d0cbbb1de541eea2b53b91e8b172"> 114</a></span> <span class="preprocessor">#define IPH_TOS_SET(hdr, tos) (hdr)->_tos = (tos)</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a069cb9b3765c4bdd63d13efb2df0206e"> 115</a></span> <span class="preprocessor">#define IPH_LEN_SET(hdr, len) (hdr)->_len = (len)</span></div>
<div class="line"><a name="l00116"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a3b2c57b6a9dc9cc32fc2f145a96bbf8f"> 116</a></span> <span class="preprocessor">#define IPH_ID_SET(hdr, id) (hdr)->_id = (id)</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a4c2189e1400dca1c0f785de96ceda2b6"> 117</a></span> <span class="preprocessor">#define IPH_OFFSET_SET(hdr, off) (hdr)->_offset = (off)</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#aa0e49f03bd4c3144e3548a0db72d1deb"> 118</a></span> <span class="preprocessor">#define IPH_TTL_SET(hdr, ttl) (hdr)->_ttl = (u8_t)(ttl)</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#a49753f7668f741b1877340bff6fb97c3"> 119</a></span> <span class="preprocessor">#define IPH_PROTO_SET(hdr, proto) (hdr)->_proto = (u8_t)(proto)</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="../../de/d0f/prot_2ip4_8h.html#aec30403fb98b013bd094688de55cdaef"> 120</a></span> <span class="preprocessor">#define IPH_CHKSUM_SET(hdr, chksum) (hdr)->_chksum = (chksum)</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> }</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_HDR_PROT_IP4_H */</span><span class="preprocessor"></span></div>
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<div class="ttc" id="agroup__compiler__abstraction_html_ga77570ac4fcab86864fa1916e55676da2"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a></div><div class="ttdeci">uint16_t u16_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00124">arch.h:124</a></div></div>
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<div class="ttc" id="astructip__hdr_html_a963b0932198484088775c5aa7446f0c1"><div class="ttname"><a href="../../da/d9b/structip__hdr.html#a963b0932198484088775c5aa7446f0c1">ip_hdr::PACK_STRUCT_FLD_S</a></div><div class="ttdeci">PACK_STRUCT_FLD_S(ip4_addr_p_t src)</div></div>
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<div class="ttc" id="acc_8h_html_a73199061891adf1b912d20835c7d5e96"><div class="ttname"><a href="../../dc/df0/cc_8h.html#a73199061891adf1b912d20835c7d5e96">PACK_STRUCT_BEGIN</a></div><div class="ttdeci">#define PACK_STRUCT_BEGIN</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/df0/cc_8h_source.html#l00008">cc.h:8</a></div></div>
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<div class="ttc" id="aip4__addr_8h_html"><div class="ttname"><a href="../../d1/da8/ip4__addr_8h.html">ip4_addr.h</a></div></div>
<div class="ttc" id="astructip4__addr__packed_html_a829ac9d684c84b953bd111251ea037a6"><div class="ttname"><a href="../../da/d88/structip4__addr__packed.html#a829ac9d684c84b953bd111251ea037a6">ip4_addr_packed::PACK_STRUCT_FIELD</a></div><div class="ttdeci">PACK_STRUCT_FIELD(u32_t addr)</div></div>
<div class="ttc" id="aprot_2ip4_8h_html_ae5011654fcbadf6b6582b8d49446107f"><div class="ttname"><a href="../../de/d0f/prot_2ip4_8h.html#ae5011654fcbadf6b6582b8d49446107f">ip4_addr_p_t</a></div><div class="ttdeci">typedefPACK_STRUCT_END struct ip4_addr_packed ip4_addr_p_t</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d0f/prot_2ip4_8h_source.html#l00061">ip4.h:61</a></div></div>
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