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<div class="title">ip_hdr.h</div>  </div>
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<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>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#define IP_HDR_H</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">/* IP header */</span></div>
<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>
<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>
<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>
<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>
<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>
<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>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">        #define IP_RF 0x8000            </span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">        #define IP_DF 0x4000            </span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">        #define IP_MF 0x2000            </span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">        #define IP_OFFMASK 0x1fff       </span></div>
<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>
<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>
<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>
<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>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">};</span></div>
<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>
<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>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#endif // IP_HDR_H</span></div>
<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>
<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>
<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>
<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>
<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>
<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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