<!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>
