[ net-snmp-Bugs-3019243 ] execFix directive not working

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Bugs item #3019243, was opened at 2010-06-21 14:54
Message generated for change (Tracker Item Submitted) made by xclint
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Category: configure
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Clint (xclint)
Assigned to: Nobody/Anonymous (nobody)
Summary: execFix directive not working

Initial Comment:
I am unable to get the execFix directive of snmpd.conf to work properly. I am using Net-SNMP 5.5 on RedHat Enterprise Linux ES 4, update 4. I built the package from source.

Here is the content of my snmpd.conf file:

rwcommunity public
exec testcommand /bin/false
execFix testcommand /bin/true


I start the snmpd agent up at the command line while running as root:

> ./snmpd -f -Lo
/root/net-snmp/share/snmp/snmpd.conf: line 3: Error: No matching exec entry
net-snmp: 1 error(s) in config file(s)
NET-SNMP version 5.5

The agent remains running at this point.


I query the extTable like this from another terminal window:
> ./snmpwalk -I R -v2c -c public localhost extTable
UCD-SNMP-MIB::extIndex.1 = INTEGER: 1
UCD-SNMP-MIB::extNames.1 = STRING: testcommand
UCD-SNMP-MIB::extCommand.1 = STRING: /bin/false
UCD-SNMP-MIB::extResult.1 = INTEGER: 1
UCD-SNMP-MIB::extOutput.1 = STRING: 
UCD-SNMP-MIB::extErrFix.1 = INTEGER: noError(0)
UCD-SNMP-MIB::extErrFixCmd.1 = STRING: 

As can be seen the execFix directive is not working properly--the agent doesn't recognize it properly, and prints an error. The snmpwalk command indicates that it is not a false error message (i.e., the agent really doesn't know how to process the command).

I found the following bug and patch to the Debian fork of Net-SNMP:
http://www.mail-archive.com/deb...@li.../msg651166.html

This patch does seem to correct the problem for me, but it has not made it into the "real" Net-SNMP code line. As I have little domain or architectural expertise in Net-SNMP agent code, I can't easily evaluate whether this code fix is a proper fix or simply a workaround hack to get it working.


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