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Diffstat (limited to 'examples/v3arch/asyncore/manager/cmdgen/get-v3-custom-context.py')
-rw-r--r-- | examples/v3arch/asyncore/manager/cmdgen/get-v3-custom-context.py | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/examples/v3arch/asyncore/manager/cmdgen/get-v3-custom-context.py b/examples/v3arch/asyncore/manager/cmdgen/get-v3-custom-context.py new file mode 100644 index 0000000..e61e538 --- /dev/null +++ b/examples/v3arch/asyncore/manager/cmdgen/get-v3-custom-context.py @@ -0,0 +1,84 @@ +""" +Custom ContextEngineId and ContextName +++++++++++++++++++++++++++++++++++++++ + +Send a SNMP GET request with the following options: + +* with SNMPv3 with user 'usr-md5-none', SHA auth and no privacy protocols +* for MIB instance identified by +* contextEngineId: 0x80004fb805636c6f75644dab22cc, +* contextName: da761cfc8c94d3aceef4f60f049105ba +* over IPv4/UDP +* to an Agent at 195.218.195.228:161 +* for an OID in tuple form + +This script performs similar to the following Net-SNMP command: + +| $ snmpget -v3 -l authNoPriv -u usr-md5-none -A authkey1 -E 80004fb805636c6f75644dab22cc -n da761cfc8c94d3aceef4f60f049105ba -ObentU 195.218.195.228:161 1.3.6.1.2.1.1.1.0 + +"""# +from pysnmp.entity import engine, config +from pysnmp.carrier.asyncore.dgram import udp +from pysnmp.entity.rfc3413 import cmdgen +from pysnmp.proto import rfc1902 + +# Create SNMP engine instance +snmpEngine = engine.SnmpEngine() + +# +# SNMPv3/USM setup +# + +# user: usr-md5-none, auth: MD5, priv: NONE +config.addV3User( + snmpEngine, 'usr-md5-none', + config.usmHMACMD5AuthProtocol, 'authkey1' +) +config.addTargetParams(snmpEngine, 'my-creds', 'usr-md5-none', 'authNoPriv') + +# +# 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, varBinds, cbCtx): + if errorIndication: + print(errorIndication) + elif errorStatus: + print('%s at %s' % ( + errorStatus.prettyPrint(), + errorIndex and varBinds[int(errorIndex)-1][0] or '?' + ) + ) + else: + for oid, val in varBinds: + print('%s = %s' % (oid.prettyPrint(), val.prettyPrint())) + +# Prepare and send a request message, pass custom ContextEngineId & ContextName +cmdgen.GetCommandGenerator().sendVarBinds( + snmpEngine, + 'my-router', + # contextEngineId + rfc1902.OctetString(hexValue='80004fb805636c6f75644dab22cc'), + # contextName + rfc1902.OctetString('da761cfc8c94d3aceef4f60f049105ba'), + [ ((1,3,6,1,2,1,1,1,0), None) ], + cbFun +) + +# Run I/O dispatcher which would send pending queries and process responses +snmpEngine.transportDispatcher.runDispatcher() |