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Diffstat (limited to 'examples/v3arch/manager/cmdgen/getnext-v2c-with-mib-compilation-and-lookup.py')
-rw-r--r-- | examples/v3arch/manager/cmdgen/getnext-v2c-with-mib-compilation-and-lookup.py | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/examples/v3arch/manager/cmdgen/getnext-v2c-with-mib-compilation-and-lookup.py b/examples/v3arch/manager/cmdgen/getnext-v2c-with-mib-compilation-and-lookup.py new file mode 100644 index 0000000..a8c5b35 --- /dev/null +++ b/examples/v3arch/manager/cmdgen/getnext-v2c-with-mib-compilation-and-lookup.py @@ -0,0 +1,88 @@ +# +# GETNEXT Command Generator +# +# Send a series of SNMP GETNEXT requests +# with SNMPv1, community 'public' +# over IPv4/UDP +# to an Agent at 195.218.195.228:161 +# for two OIDs in tuple form +# stop on end-of-mib condition for both OIDs +# +# This script performs similar to the following Net-SNMP command: +# +# $ snmpwalk -v1 -c public -ObentU 195.218.195.228 1.3.6.1.2.1.1 1.3.6.1.4.1.1 +# +from pysnmp.entity import engine, config +from pysnmp.carrier.asynsock.dgram import udp +from pysnmp.entity.rfc3413 import cmdgen +from pysnmp.smi import compiler, view, rfc1902 + +# Create SNMP engine instance +snmpEngine = engine.SnmpEngine() + +# Attach MIB compiler to SNMP Engine (MIB Builder) +compiler.addMibCompiler(snmpEngine.getMibBuilder()) + +# Used for MIB objects resolution +mibViewController = view.MibViewController(snmpEngine.getMibBuilder()) + +# +# +# SNMPv1/2c setup +# + +# SecurityName <-> CommunityName mapping +config.addV1System(snmpEngine, 'my-area', 'public') + +# Specify security settings per SecurityName (SNMPv1 - 0, SNMPv2c - 1) +config.addTargetParams(snmpEngine, 'my-creds', 'my-area', 'noAuthNoPriv', 1) + +# +# Setup transport endpoint and bind it with security settings yielding +# a target name +# + +# UDP/IPv4 +config.addTransport( + snmpEngine, + udp.domainName, + udp.UdpSocketTransport().openClientMode() +) +config.addTargetAddr( + snmpEngine, 'my-router', + udp.domainName, ('195.218.195.228', 161), + 'my-creds' +) + +# Error/response receiver +def cbFun(snmpEngine, sendRequestHandle, errorIndication, + errorStatus, errorIndex, varBindTable, cbCtx): + if errorIndication: + print(errorIndication) + return + # SNMPv1 response may contain noSuchName error *and* SNMPv2c exception, + # so we ignore noSuchName error here + if errorStatus and errorStatus != 2: + print('%s at %s' % ( + errorStatus.prettyPrint(), + errorIndex and varBindTable[-1][int(errorIndex)-1][0] or '?' + ) + ) + return # stop on error + for varBindRow in varBindTable: + for varBind in varBindRow: + print(rfc1902.ObjectType(rfc1902.ObjectIdentity(varBind[0]), varBind[1]).resolveWithMib(mibViewController).prettyPrint()) + return 1 # signal dispatcher to continue + +# Prepare initial request to be sent +cmdgen.NextCommandGenerator().sendVarBinds( + snmpEngine, + 'my-router', + None, '', # contextEngineId, contextName + [ rfc1902.ObjectType(rfc1902.ObjectIdentity('iso.org.dod')).resolveWithMib(mibViewController), + rfc1902.ObjectType(rfc1902.ObjectIdentity('IF-MIB', 'ifMIB')).resolveWithMib(mibViewController) ], + cbFun +) + +# Run I/O dispatcher which would send pending queries and process responses +snmpEngine.transportDispatcher.runDispatcher() |