Comtrol eCos - Manual (Page 621)

Chapter 47. SNMP for eCos
tation. As required, a cleaner interface to permit application code to manage persistent data will be developed in
consultation with customers.
MIB Compiler
In the directory /snmp/agent/VERSION/utils/mib2c , there are the following files:
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
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).
These are available from the CPAN (“the Comprehensive Perl Archive Network”) as usual; http://www.cpan.org/
and links from there. Specifically:
• PERL itself: http://people.netscape.com/kristian/nsPerl/
• http://people.netscape.com/richm/nsPerl/nsPerl5.005_03-11-i686-linux.tar.gz
• SNMP.pl http://www.cpan.org/modules/01modules.index.html
• http://cpan.valueclick.com/modules/by-category/05_Networking_Devices_IPC/SNMP/
• http://www.cpan.org/authors/id/G/GS/GSM/SNMP.tar.gz
(note that the .tar.gz files are not browsable)
For documentation on the files produced, see the documentation available at http://ucd-snmp.ucdavis.edu/ in gen-
eral, and file
AGENT.txt in particular.
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.
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.
PACKAGES/net/snmp/agent/VERSION/include/mib_module_includes.h
contains a number of lines like
#include “mibgroup/mibII/interfaces.h”
so add your new MIB thus:
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