[jboss-jira] [JBoss JIRA] Created: (JBAS-4227) [SnmpAgentService] MIB2SystemGroup violates RFC-1213

Wed Mar 21 09:12:58 EDT 2007

[SnmpAgentService] MIB2SystemGroup violates RFC-1213
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                 Key: JBAS-4227
                 URL: http://jira.jboss.com/jira/browse/JBAS-4227
             Project: JBoss Application Server
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: JMX
    Affects Versions: JBossAS-4.0.4.GA
            Reporter: Kenny MacLeod
         Assigned To: Dimitris Andreadis

The SnmpAgentService exposes a standard MIB2 System Group.  However, the OIDs that are produced violate RFC-1213, which dictates that the sysUpTime value should have a type of TimeTicks.  Instead, SnmpAgentService generates a type of int32.

Take the following output from snmpwalk:

SNMPv2-MIB::sysDescr = STRING: Central Computer
SNMPv2-MIB::sysObjectID = OID: SNMPv2-SMI::enterprises.18016.1.1.2
SNMPv2-MIB::sysUpTime = Wrong Type (should be Timeticks): Gauge32: 769331
SNMPv2-MIB::sysContact = STRING: Agent Smith
SNMPv2-MIB::sysName = STRING: kizoom at 10.10.0.208
SNMPv2-MIB::sysLocation = STRING: In The Matrix
SNMPv2-MIB::sysServices = INTEGER: 64
End of MIB

For systems which monitor SNMP agents (e.g. OpenNMS), this causes them to reject the agent because of the bad type.

The bug lies in org.jboss.jmx.adaptor.snmp.agent.RequestHandlerImpl, which determines the type of the OID value by examining the type of the JMX attribute being monitored.  It has no way to generate a TimeTicks value, it can only handle Long, String, Integer and SnmpOID types.

The JBoss wiki states that RFC-1213 is supported, but this is incorrect when the type for sysUpTime is wrong (http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossSNMPAdapterGetValues).  Also the attributes.xml file in xnmp-adaptor.sar quotes RFC-1213.

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