<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>function::linuxmib_filter_key</title><meta name="generator" content="DocBook XSL Stylesheets V1.76.1"><link rel="home" href="index.html" title="SystemTap Tapset Reference Manual"><link rel="up" href="snmp.stp.html" title="Chapter 15. SNMP Information Tapset"><link rel="prev" href="API-ipmib-tcp-remote-port.html" title="function::ipmib_tcp_remote_port"><link rel="next" href="API-tcpmib-filter-key.html" title="function::tcpmib_filter_key"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>function::linuxmib_filter_key</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-ipmib-tcp-remote-port.html">Prev</a> </td><th width="60%" align="center">Chapter 15. SNMP Information Tapset</th><td width="20%" align="right"> <a accesskey="n" href="API-tcpmib-filter-key.html">Next</a></td></tr></table><hr></div><div class="refentry" title="function::linuxmib_filter_key"><a name="API-linuxmib-filter-key"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>function::linuxmib_filter_key —
Default filter function for linuxmib.* probes
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><pre class="programlisting">
linuxmib_filter_key:long(sk:long,op:long)
</pre></div><div class="refsect1" title="Arguments"><a name="idp5551072"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>sk</code></em></span></dt><dd><p>
pointer to the struct sock
</p></dd><dt><span class="term"><em class="parameter"><code>op</code></em></span></dt><dd><p>
value to be counted if <em class="parameter"><code>sk</code></em> passes the filter
</p></dd></dl></div></div><div class="refsect1" title="Description"><a name="idp5554072"></a><h2>Description</h2><p>
This function is a default filter function.
The user can replace this function with their own.
The user-supplied filter function returns an index key based on the values
in <em class="parameter"><code>sk</code></em>.
A return value of 0 means this particular <em class="parameter"><code>sk</code></em> should be not be counted.
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