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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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<HTML
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><HEAD
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><TITLE
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>MIB Compiler </TITLE
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TITLE="SNMP for eCos"
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TITLE="Unimplemented features"
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><TR
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><TH
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>eCos Reference Manual</TH
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><TR
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><TD
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><A
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HREF="net-snmp-unimplemented-features.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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ALIGN="center"
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VALIGN="bottom"
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>Chapter 47. SNMP for <SPAN
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CLASS="emphasis"
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><I
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CLASS="EMPHASIS"
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>eCos</I
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></SPAN
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></TD
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>Next</A
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><DIV
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CLASS="SECT1"
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><H1
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CLASS="SECT1"
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><A
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NAME="NET-SNMP-MIB-COMPILER">MIB Compiler</H1
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><P
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>In the directory
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          <TT
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CLASS="FILENAME"
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>/snmp/agent/VERSION/utils/mib2c</TT
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>,
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there are the following files:</P
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><TABLE
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><TR
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><TD
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><PRE
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>README-eCos             notes about running with a nonstandard
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                        perl path.
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README.mib2c            the README from UCD; full instructions on
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                        using mib2c
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mib2c                   the perl program
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mib2c.conf              a configuration file altered to include the
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                        eCos/UCD
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mib2c.conf-ORIG         copyright and better #include paths; and
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                        the ORIGinal.
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mib2c.storage.conf      other config files, not modified.
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mib2c.vartypes.conf</PRE
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></TD
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><P
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>mib2c is provided BUT it requires the SNMP perl package SNMP-3.1.0,
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and that in turn requires perl nsPerl5.005_03 (part of
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Red Hat Linux from 6.0, April 1999).</P
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><P
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>These are available from the CPAN (&#8220;the Comprehensive
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Perl Archive Network&#8221;) as usual;
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<A
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HREF="http://www.cpan.org/"
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TARGET="_top"
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>http://www.cpan.org/</A
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>
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and links from there. Specifically:</P
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><P
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></P
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><UL
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><LI
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><P
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>PERL itself:
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<A
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HREF="http://people.netscape.com/kristian/nsPerl/"
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TARGET="_top"
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>http://people.netscape.com/kristian/nsPerl/</A
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></P
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></LI
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><LI
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><P
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><A
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HREF="http://people.netscape.com/richm/nsPerl/nsPerl5.005_03-11-i686-linux.tar.gz"
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TARGET="_top"
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>http://people.netscape.com/richm/nsPerl/nsPerl5.005_03-11-i686-linux.tar.gz</A
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></P
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></LI
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><LI
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><P
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>SNMP.pl
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<A
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HREF="http://www.cpan.org/modules/01modules.index.html"
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TARGET="_top"
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>http://www.cpan.org/modules/01modules.index.html</A
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></P
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></LI
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><LI
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><P
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><A
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HREF="http://cpan.valueclick.com/modules/by-category/05_Networking_Devices_IPC/SNMP/"
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TARGET="_top"
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>http://cpan.valueclick.com/modules/by-category/05_Networking_Devices_IPC/SNMP/</A
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></P
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></LI
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><LI
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><P
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><A
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HREF="http://www.cpan.org/authors/id/G/GS/GSM/SNMP.tar.gz"
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TARGET="_top"
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>http://www.cpan.org/authors/id/G/GS/GSM/SNMP.tar.gz</A
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></P
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></LI
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></UL
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><P
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>(note that the .tar.gz files are not browsable)</P
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><P
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>For documentation on the files produced, see the documentation
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available at
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<A
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HREF="http://ucd-snmp.ucdavis.edu/"
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TARGET="_top"
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>http://ucd-snmp.ucdavis.edu/</A
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>
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in general, and file <TT
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CLASS="FILENAME"
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>AGENT.txt</TT
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> in particular.</P
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><P
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>It is likely that the output of mib2c will be further customized
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depending on eCos customer needs; it&#8217;s easy to do this
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by editing the mib2c.conf file to add or remove whatever you need
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with the resulting C sources.</P
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><P
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>The UCD autoconf-style configuration does not apply to eCos.
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 So if you add a completely new MIB to the agent, and support it
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using mib2c so that the my_new_mib.c file contains
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a init_my_new_mib() routine to register
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the MIB handler, you will also need to edit a couple of control
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files; these claim to be auto-generated, but in the eCos release,
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they&#8217;re not, don&#8217;t worry.</P
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><TABLE
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>PACKAGES/net/snmp/agent/VERSION/include/mib_module_includes.h</PRE
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><P
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>contains a number of lines like</P
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>#include &#8220;mibgroup/mibII/interfaces.h&#8221;</PRE
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></TD
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></TR
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><P
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>so add your new MIB thus:</P
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>#include &#8220;mibgroup/mibII/my_new_mib.h&#8221;</PRE
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>PACKAGES/net/snmp/agent/VERSION/include/mib_module_inits.h </PRE
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></TD
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></TR
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></TABLE
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><P
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>contains a number of lines like</P
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><TR
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><TD
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><PRE
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CLASS="PROGRAMLISTING"
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>init_interfaces();
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init_dot3(); </PRE
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></TD
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></TR
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></TABLE
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><P
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>and so on; add your new MIB as follows:</P
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>init_my_new_mib(); </PRE
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><P
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>and this should work correctly.</P
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>Prev</A
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>Home</A
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>Unimplemented features</TD
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>snmpd.conf</TD
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