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  81. <div class="title">ip_hdr.h</div> </div>
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  83. <div class="contents">
  84. <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="preprocessor">#ifndef IP_HDR_H</span></div>
  85. <div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="preprocessor">#define IP_HDR_H</span></div>
  86. <div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;</div>
  87. <div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">/* IP header */</span></div>
  88. <div class="line"><a name="l00008"></a><span class="lineno"><a class="line" href="structsniff__ip.html"> 8</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structsniff__ip.html">sniff_ip</a> {</div>
  89. <div class="line"><a name="l00009"></a><span class="lineno"><a class="line" href="structsniff__ip.html#a8ced3d6237cb8b0538e73227843b4edb"> 9</a></span>&#160; u_char <a class="code" href="structsniff__ip.html#a8ced3d6237cb8b0538e73227843b4edb">ip_vhl</a>; </div>
  90. <div class="line"><a name="l00010"></a><span class="lineno"><a class="line" href="structsniff__ip.html#aa850a52985272f13d6866d14be1ecdf6"> 10</a></span>&#160; u_char <a class="code" href="structsniff__ip.html#aa850a52985272f13d6866d14be1ecdf6">ip_tos</a>; </div>
  91. <div class="line"><a name="l00011"></a><span class="lineno"><a class="line" href="structsniff__ip.html#aa4907e31555a52a20bc0eadc46d45044"> 11</a></span>&#160; u_short <a class="code" href="structsniff__ip.html#aa4907e31555a52a20bc0eadc46d45044">ip_len</a>; </div>
  92. <div class="line"><a name="l00012"></a><span class="lineno"><a class="line" href="structsniff__ip.html#a9cae00d3f7491ce2bfcb086880b1aa6a"> 12</a></span>&#160; u_short <a class="code" href="structsniff__ip.html#a9cae00d3f7491ce2bfcb086880b1aa6a">ip_id</a>; </div>
  93. <div class="line"><a name="l00013"></a><span class="lineno"><a class="line" href="structsniff__ip.html#aecf13449d60d1e0b7d78a64fcd3e54de"> 13</a></span>&#160; u_short <a class="code" href="structsniff__ip.html#aecf13449d60d1e0b7d78a64fcd3e54de">ip_off</a>; </div>
  94. <div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor"> #define IP_RF 0x8000 </span></div>
  95. <div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor"> #define IP_DF 0x4000 </span></div>
  96. <div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor"> #define IP_MF 0x2000 </span></div>
  97. <div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor"> #define IP_OFFMASK 0x1fff </span></div>
  98. <div class="line"><a name="l00018"></a><span class="lineno"><a class="line" href="structsniff__ip.html#abed391544944e353d09e85030f423ec8"> 18</a></span>&#160;<span class="preprocessor"> u_char ip_ttl; </span></div>
  99. <div class="line"><a name="l00019"></a><span class="lineno"><a class="line" href="structsniff__ip.html#a49d22326de644e4d1158ef7ae4fb22b7"> 19</a></span>&#160;<span class="preprocessor"> u_char ip_p; </span></div>
  100. <div class="line"><a name="l00020"></a><span class="lineno"><a class="line" href="structsniff__ip.html#a263384b09865cda4a03e3451de740c84"> 20</a></span>&#160;<span class="preprocessor"> u_short ip_sum; </span></div>
  101. <div class="line"><a name="l00021"></a><span class="lineno"><a class="line" href="structsniff__ip.html#ad2db4a1d3fbfb1bcc44e5a26d6c28c2e"> 21</a></span>&#160;<span class="preprocessor"> struct in_addr ip_src,ip_dst; </span></div>
  102. <div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="preprocessor">};</span></div>
  103. <div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#define IP_HL(ip) (((ip)-&gt;ip_vhl) &amp; 0x0f)</span></div>
  104. <div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#define IP_V(ip) (((ip)-&gt;ip_vhl) &gt;&gt; 4)</span></div>
  105. <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;</div>
  106. <div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#endif // IP_HDR_H</span></div>
  107. <div class="ttc" id="structsniff__ip_html_a8ced3d6237cb8b0538e73227843b4edb"><div class="ttname"><a href="structsniff__ip.html#a8ced3d6237cb8b0538e73227843b4edb">sniff_ip::ip_vhl</a></div><div class="ttdeci">u_char ip_vhl</div><div class="ttdef"><b>Definition:</b> ip_hdr.h:9</div></div>
  108. <div class="ttc" id="structsniff__ip_html_aecf13449d60d1e0b7d78a64fcd3e54de"><div class="ttname"><a href="structsniff__ip.html#aecf13449d60d1e0b7d78a64fcd3e54de">sniff_ip::ip_off</a></div><div class="ttdeci">u_short ip_off</div><div class="ttdef"><b>Definition:</b> ip_hdr.h:13</div></div>
  109. <div class="ttc" id="structsniff__ip_html_aa4907e31555a52a20bc0eadc46d45044"><div class="ttname"><a href="structsniff__ip.html#aa4907e31555a52a20bc0eadc46d45044">sniff_ip::ip_len</a></div><div class="ttdeci">u_short ip_len</div><div class="ttdef"><b>Definition:</b> ip_hdr.h:11</div></div>
  110. <div class="ttc" id="structsniff__ip_html_aa850a52985272f13d6866d14be1ecdf6"><div class="ttname"><a href="structsniff__ip.html#aa850a52985272f13d6866d14be1ecdf6">sniff_ip::ip_tos</a></div><div class="ttdeci">u_char ip_tos</div><div class="ttdef"><b>Definition:</b> ip_hdr.h:10</div></div>
  111. <div class="ttc" id="structsniff__ip_html_a9cae00d3f7491ce2bfcb086880b1aa6a"><div class="ttname"><a href="structsniff__ip.html#a9cae00d3f7491ce2bfcb086880b1aa6a">sniff_ip::ip_id</a></div><div class="ttdeci">u_short ip_id</div><div class="ttdef"><b>Definition:</b> ip_hdr.h:12</div></div>
  112. <div class="ttc" id="structsniff__ip_html"><div class="ttname"><a href="structsniff__ip.html">sniff_ip</a></div><div class="ttdoc">The sniff_ip struct defines the packet header of a tcp internet packet. Used to extract IP layer info...</div><div class="ttdef"><b>Definition:</b> ip_hdr.h:8</div></div>
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