snmptrapd fails to decode certain SNMPv1 traps

[Morten Brekkevold]

snmptrapd will fail to decode some SNMPv1 traps. This appears to have been introduced in NAV 3.6, with the rewritten TrapListener for PySNMP-SE.

This is the traceback from the log:

[2011-01-11 11:31:21,469] [ERROR] [pid=2418 nav.snmptrapd.agent_se] Unknown exception while decoding snmp trap packet from ('10.0.0.42', 31252), ignoring trap
Traceback (most recent call last):
  File "/var/lib/python-support/python2.5/nav/snmptrapd/agent_se.py", line 120, in listen
    trap = self._decode(request, src)
  File "/var/lib/python-support/python2.5/nav/snmptrapd/agent_se.py", line 67, in _decode
    snmp_trap_oid, generic_type = transform(pdu)
  File "/var/lib/python-support/python2.5/nav/snmptrapd/agent_se.py", line 144, in transform
    snmp_trap_oid = enterprise + [0] + pdu.apiAlphaGetSpecificTrap().get()
TypeError: can only concatenate list (not "int") to list

The last element of the concatenation is an int, not a list, which is what causes this.

[Morten Brekkevold (mbrekkevold)]

fix here: http://metanav.uninett.no/hg/series/3.7.x/rev/8ff847c55920