ntfrcv.py :  » Network » Python-SNMP » pysnmp-4.1.13a » examples » v1arch » manager » Python Open Source

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Python Open Source » Network » Python SNMP 
Python SNMP » pysnmp 4.1.13a » examples » v1arch » manager » ntfrcv.py
# Notification Receiver (TRAP PDU)
from pysnmp.carrier.asynsock.dispatch import AsynsockDispatcher
from pysnmp.carrier.asynsock.dgram import udp
from pyasn1.codec.ber import decoder
from pysnmp.proto import api

def cbFun(transportDispatcher, transportDomain, transportAddress, wholeMsg):
    while wholeMsg:
        msgVer = int(api.decodeMessageVersion(wholeMsg))
        if api.protoModules.has_key(msgVer):
            pMod = api.protoModules[msgVer]
        else:
            print 'Unsupported SNMP version %s' % msgVer
            return
        reqMsg, wholeMsg = decoder.decode(
            wholeMsg, asn1Spec=pMod.Message(),
            )
        print 'Notification message from %s:%s: ' % (
            transportDomain, transportAddress
            )
        reqPDU = pMod.apiMessage.getPDU(reqMsg)
        if reqPDU.isSameTypeWith(pMod.TrapPDU()):
            if msgVer == api.protoVersion1:
                print 'Enterprise: %s' % (
                    pMod.apiTrapPDU.getEnterprise(reqPDU).prettyPrint()
                    )
                print 'Agent Address: %s' % (
                    pMod.apiTrapPDU.getAgentAddr(reqPDU).prettyPrint()
                    )
                print 'Generic Trap: %s' % (
                    pMod.apiTrapPDU.getGenericTrap(reqPDU).prettyPrint()
                    )
                print 'Specific Trap: %s' % (
                    pMod.apiTrapPDU.getSpecificTrap(reqPDU).prettyPrint()
                    )
                print 'Uptime: %s' % (
                    pMod.apiTrapPDU.getTimeStamp(reqPDU).prettyPrint()
                    )
                varBinds = pMod.apiTrapPDU.getVarBindList(reqPDU)
            else:
                varBinds = pMod.apiPDU.getVarBindList(reqPDU)
            print 'Var-binds:'
            for oid, val in varBinds:
                print '%s = %s' % (oid.prettyPrint(), val.prettyPrint())
    return wholeMsg

transportDispatcher = AsynsockDispatcher()
transportDispatcher.registerTransport(
    udp.domainName, udp.UdpSocketTransport().openServerMode(('localhost', 162))
    )
transportDispatcher.registerRecvCbFun(cbFun)
transportDispatcher.jobStarted(1) # this job would never finish
transportDispatcher.runDispatcher()
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