<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>libnl: Conntrack</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.7.3 --> <div id="top"> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">libnl <span id="projectnumber">1.1</span></div> </td> </tr> </tbody> </table> </div> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="modules.html"><span>Modules</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li><a href="files.html"><span>Files</span></a></li> </ul> </div> </div> <div class="header"> <div class="summary"> <a href="#define-members">Defines</a> | <a href="#func-members">Functions</a> </div> <div class="headertitle"> <h1>Conntrack</h1> </div> <div class="ingroups"><a class="el" href="group__nfnl.html">Netfilter Netlink</a></div></div> <div class="contents"> <table class="memberdecls"> <tr><td colspan="2"><h2><a name="define-members"></a> Defines</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga037066c3eb03a514094c26182163d4cc"></a><!-- doxytag: member="ct::NFNLMSG_CT_TYPE" ref="ga037066c3eb03a514094c26182163d4cc" args="(type)" --> #define </td><td class="memItemRight" valign="bottom"><b>NFNLMSG_CT_TYPE</b>(type)   NFNLMSG_TYPE(NFNL_SUBSYS_CTNETLINK, (type))</td></tr> <tr><td colspan="2"><h2><a name="func-members"></a> Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="gaa3620dab45715310bda3d8c19e10b9ce"></a><!-- doxytag: member="ct::nfnlmsg_ct_group" ref="gaa3620dab45715310bda3d8c19e10b9ce" args="(struct nlmsghdr *nlh)" --> int </td><td class="memItemRight" valign="bottom"><b>nfnlmsg_ct_group</b> (struct <a class="el" href="structnlmsghdr.html">nlmsghdr</a> *nlh)</td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga940359d74781a74551cd452fae82dfbf"></a><!-- doxytag: member="ct::nfnlmsg_ct_parse" ref="ga940359d74781a74551cd452fae82dfbf" args="(struct nlmsghdr *nlh)" --> struct nfnl_ct * </td><td class="memItemRight" valign="bottom"><b>nfnlmsg_ct_parse</b> (struct <a class="el" href="structnlmsghdr.html">nlmsghdr</a> *nlh)</td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ga6895cfdf2fb9b8570f9a2a1b00165818"></a><!-- doxytag: member="ct::nfnl_ct_dump_request" ref="ga6895cfdf2fb9b8570f9a2a1b00165818" args="(struct nl_handle *h)" --> int </td><td class="memItemRight" valign="bottom"><b>nfnl_ct_dump_request</b> (struct nl_handle *h)</td></tr> <tr><td colspan="2"><h2><a name="member-group"></a> Cache Management</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">struct nl_cache * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__ct.html#ga418aad867d4f08e98b7b423795ff8914">nfnl_ct_alloc_cache</a> (struct nl_handle *handle)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Build a conntrack cache holding all conntrack currently in the kernel. <a href="#ga418aad867d4f08e98b7b423795ff8914"></a><br/></td></tr> </table> <hr/><h2>Function Documentation</h2> <a class="anchor" id="ga418aad867d4f08e98b7b423795ff8914"></a><!-- doxytag: member="ct.c::nfnl_ct_alloc_cache" ref="ga418aad867d4f08e98b7b423795ff8914" args="(struct nl_handle *handle)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">struct nl_cache* nfnl_ct_alloc_cache </td> <td>(</td> <td class="paramtype">struct nl_handle * </td> <td class="paramname"><em>handle</em></td><td>)</td> <td><code> [read]</code></td> </tr> </table> </div> <div class="memdoc"> <dl><dt><b>Parameters:</b></dt><dd> <table class="params"> <tr><td class="paramname">handle</td><td>netlink handle</td></tr> </table> </dd> </dl> <p>Allocates a new cache, initializes it properly and updates it to contain all conntracks currently in the kernel.</p> <dl class="note"><dt><b>Note:</b></dt><dd>The caller is responsible for destroying and freeing the cache after using it. </dd></dl> <dl class="return"><dt><b>Returns:</b></dt><dd>The cache or NULL if an error has occured. </dd></dl> <p>Definition at line <a class="el" href="ct_8c_source.html#l00407">407</a> of file <a class="el" href="ct_8c_source.html">ct.c</a>.</p> <p>References <a class="el" href="cache_8c_source.html#l00173">nl_cache_alloc()</a>, and <a class="el" href="cache_8c_source.html#l00662">nl_cache_refill()</a>.</p> <div class="fragment"><pre class="fragment">{ <span class="keyword">struct </span>nl_cache *cache; cache = <a class="code" href="group__cache.html#ga9520ae0f2158db3c081f34c851d92252" title="Allocate an empty cache.">nl_cache_alloc</a>(&nfnl_ct_ops); <span class="keywordflow">if</span> (!cache) <span class="keywordflow">return</span> NULL; <span class="keywordflow">if</span> (handle && <a class="code" href="group__cache.html#gaf5bd584017847e6ef69ec36739a6aaf0" title="(Re)fill a cache with the contents in the kernel.">nl_cache_refill</a>(handle, cache) < 0) { free(cache); <span class="keywordflow">return</span> NULL; } <span class="keywordflow">return</span> cache; } </pre></div> </div> </div> </div> <hr class="footer"/><address class="footer"><small>Generated on Mon Mar 21 2011 for libnl by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.3 </small></address> </body> </html>