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<!-- Copyright (C) 2003 Red Hat, Inc. --> <!-- This material may be distributed only subject to the terms --> <!-- and conditions set forth in the Open Publication License, v1.0 --> <!-- or later (the latest version is presently available at --> <!-- http://www.opencontent.org/openpub/). --> <!-- Distribution of the work or derivative of the work in any --> <!-- standard (paper) book form is prohibited unless prior --> <!-- permission is obtained from the copyright holder. --> <HTML ><HEAD ><TITLE >MIB Compiler </TITLE ><meta name="MSSmartTagsPreventParsing" content="TRUE"> <META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="eCos Reference Manual" HREF="ecos-ref.html"><LINK REL="UP" TITLE="SNMP for eCos" HREF="net-snmp-ecos-port.html"><LINK REL="PREVIOUS" TITLE="Unimplemented features" HREF="net-snmp-unimplemented-features.html"><LINK REL="NEXT" TITLE="snmpd.conf" HREF="net-snmp-agent-manpages-snmpd.conf.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >eCos Reference Manual</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="net-snmp-unimplemented-features.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 47. SNMP for <SPAN CLASS="emphasis" ><I CLASS="EMPHASIS" >eCos</I ></SPAN ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="net-snmp-agent-manpages-snmpd.conf.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="NET-SNMP-MIB-COMPILER">MIB Compiler</H1 ><P >In the directory <TT CLASS="FILENAME" >/snmp/agent/VERSION/utils/mib2c</TT >, there are the following files:</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >README-eCos notes about running with a nonstandard perl path. README.mib2c the README from UCD; full instructions on using mib2c mib2c the perl program mib2c.conf a configuration file altered to include the eCos/UCD mib2c.conf-ORIG copyright and better #include paths; and the ORIGinal. mib2c.storage.conf other config files, not modified. mib2c.vartypes.conf</PRE ></TD ></TR ></TABLE ><P >mib2c is provided BUT it requires the SNMP perl package SNMP-3.1.0, and that in turn requires perl nsPerl5.005_03 (part of Red Hat Linux from 6.0, April 1999).</P ><P >These are available from the CPAN (“the Comprehensive Perl Archive Network”) as usual; <A HREF="http://www.cpan.org/" TARGET="_top" >http://www.cpan.org/</A > and links from there. Specifically:</P ><P ></P ><UL ><LI ><P >PERL itself: <A HREF="http://people.netscape.com/kristian/nsPerl/" TARGET="_top" >http://people.netscape.com/kristian/nsPerl/</A ></P ></LI ><LI ><P ><A HREF="http://people.netscape.com/richm/nsPerl/nsPerl5.005_03-11-i686-linux.tar.gz" TARGET="_top" >http://people.netscape.com/richm/nsPerl/nsPerl5.005_03-11-i686-linux.tar.gz</A ></P ></LI ><LI ><P >SNMP.pl <A HREF="http://www.cpan.org/modules/01modules.index.html" TARGET="_top" >http://www.cpan.org/modules/01modules.index.html</A ></P ></LI ><LI ><P ><A HREF="http://cpan.valueclick.com/modules/by-category/05_Networking_Devices_IPC/SNMP/" TARGET="_top" >http://cpan.valueclick.com/modules/by-category/05_Networking_Devices_IPC/SNMP/</A ></P ></LI ><LI ><P ><A HREF="http://www.cpan.org/authors/id/G/GS/GSM/SNMP.tar.gz" TARGET="_top" >http://www.cpan.org/authors/id/G/GS/GSM/SNMP.tar.gz</A ></P ></LI ></UL ><P >(note that the .tar.gz files are not browsable)</P ><P >For documentation on the files produced, see the documentation available at <A HREF="http://ucd-snmp.ucdavis.edu/" TARGET="_top" >http://ucd-snmp.ucdavis.edu/</A > in general, and file <TT CLASS="FILENAME" >AGENT.txt</TT > in particular.</P ><P >It is likely that the output of mib2c will be further customized depending on eCos customer needs; it’s easy to do this by editing the mib2c.conf file to add or remove whatever you need with the resulting C sources.</P ><P >The UCD autoconf-style configuration does not apply to eCos. So if you add a completely new MIB to the agent, and support it using mib2c so that the my_new_mib.c file contains a init_my_new_mib() routine to register the MIB handler, you will also need to edit a couple of control files; these claim to be auto-generated, but in the eCos release, they’re not, don’t worry.</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >PACKAGES/net/snmp/agent/VERSION/include/mib_module_includes.h</PRE ></TD ></TR ></TABLE ><P >contains a number of lines like</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >#include “mibgroup/mibII/interfaces.h”</PRE ></TD ></TR ></TABLE ><P >so add your new MIB thus:</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >#include “mibgroup/mibII/my_new_mib.h”</PRE ></TD ></TR ></TABLE ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >PACKAGES/net/snmp/agent/VERSION/include/mib_module_inits.h </PRE ></TD ></TR ></TABLE ><P >contains a number of lines like</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >init_interfaces(); init_dot3(); </PRE ></TD ></TR ></TABLE ><P >and so on; add your new MIB as follows:</P ><TABLE BORDER="5" BGCOLOR="#E0E0F0" WIDTH="70%" ><TR ><TD ><PRE CLASS="PROGRAMLISTING" >init_my_new_mib(); </PRE ></TD ></TR ></TABLE ><P >and this should work correctly.</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="net-snmp-unimplemented-features.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ecos-ref.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="net-snmp-agent-manpages-snmpd.conf.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Unimplemented features</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="net-snmp-ecos-port.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >snmpd.conf</TD ></TR ></TABLE ></DIV ></BODY ></HTML >
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