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"""
Walk whole MIB
++++++++++++++
Send a series of SNMP GETNEXT requests using the following options:
* with SNMPv3, user 'usr-md5-none', MD5 authentication, no privacy
* over IPv4/UDP
* to an Agent at demo.snmplabs.com:161
* for all OIDs in IF-MIB
* based on Twisted I/O framework
Functionally similar to:
| $ snmpwalk -v3 -lauthPriv -u usr-md5-none -A authkey1 -X privkey1 \
| demo.snmplabs.com IF-MIB::
"""#
from twisted.internet.task import react
from pysnmp.hlapi.twisted import *
def success((errorStatus, errorIndex, varBindTable), reactor, snmpEngine):
if errorStatus:
print('%s: %s at %s' % (
hostname,
errorStatus.prettyPrint(),
errorIndex and varBindTable[0][int(errorIndex)-1][0] or '?'
)
)
else:
for varBindRow in varBindTable:
for varBind in varBindRow:
print(' = '.join([ x.prettyPrint() for x in varBind ]))
if not isEndOfMib(varBindTable[-1]):
return getnext(reactor, snmpEngine, *varBindTable[-1])
def failure(errorIndication):
print(errorIndication)
def getnext(reactor, snmpEngine, varBinds):
d = nextCmd(snmpEngine,
UsmUserData('usr-md5-none', 'authkey1'),
UdpTransportTarget(('demo.snmplabs.com', 161)),
ContextData(),
varBinds)
d.addCallback(success, reactor, snmpEngine).addErrback(failure)
return d
react(getnext, [SnmpEngine(), ObjectType(ObjectIdentity('SNMPv2-MIB', 'system'))])
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