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# GETNEXT Command Generator
from pysnmp.entity.rfc3413.oneliner import cmdgen
from pysnmp.proto import rfc1902
# ( ( authData, transportTarget, varNames ), ... )
targets = (
# 1-st target (SNMPv1 over IPv4/UDP)
( cmdgen.CommunityData('public', mpModel=0),
cmdgen.UdpTransportTarget(('localhost', 161)),
((1,3,6,1,2,1), (1,3,6,1,3,1)) ),
# 2-nd target (SNMPv2c over IPv4/UDP)
( cmdgen.CommunityData('public'),
cmdgen.UdpTransportTarget(('localhost', 161)),
((1,3,6,1,4,1), ) ),
# 3-nd target (SNMPv3 over IPv4/UDP)
( cmdgen.UsmUserData('usr-md5-des', 'authkey1', 'privkey1'),
cmdgen.UdpTransportTarget(('localhost', 161)),
((1,3,6,1,5,1), ) ),
# 4-th target (SNMPv3 over IPv6/UDP)
( cmdgen.UsmUserData('usr-md5-none', 'authkey1'),
cmdgen.Udp6TransportTarget(('::1', 161)),
((1,3,6,1,6,1), ) ),
# 5-th target (SNMPv2c over Local Domain Socket)
( cmdgen.CommunityData('public'),
cmdgen.UnixTransportTarget('/tmp/snmp-agent'),
((1,3,6,1,6,1), ) )
# N-th target
# ...
)
def cbFun(sendRequestHandle, errorIndication, errorStatus, errorIndex,
varBindTable, cbCtx):
(varBindHead, authData, transportTarget) = cbCtx
print('%s via %s' % (authData, transportTarget))
if errorIndication:
print(errorIndication)
return 1
if errorStatus:
print('%s at %s' % (
errorStatus.prettyPrint(),
errorIndex and varBindTable[-1][int(errorIndex)-1] or '?'
)
)
return 1
varBindTableRow = varBindTable[-1]
for idx in range(len(varBindTableRow)):
name, val = varBindTableRow[idx]
if val is not None and varBindHead[idx] <= name:
# still in table
break
else:
print('went out of table at %s' % (name, ))
return
for varBindRow in varBindTable:
for oid, val in varBindRow:
if val is None:
print(oid.prettyPrint())
else:
print('%s = %s' % (oid.prettyPrint(), val.prettyPrint()))
return 1 # continue table retrieval
cmdGen = cmdgen.AsynCommandGenerator()
for authData, transportTarget, varNames in targets:
cmdGen.nextCmd(
authData, transportTarget, varNames,
# User-space callback function and its context
(cbFun, (varNames, authData, transportTarget))
)
cmdGen.snmpEngine.transportDispatcher.runDispatcher()
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