1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
"""
Walk multiple Agents at once
++++++++++++++++++++++++++++
* with SNMPv3 with user 'usr-md5-none', MD5 auth and no privacy protocols
* over IPv4/UDP
* to Agents at demo.snmplabs.com:161 and demo.snmplabs.com:1161
* for multiple MIB subtrees and tables
* for whole MIB
* based on Twisted I/O framework
Functionally similar to:
| $ snmpget -v2c -c public demo.snmplabs.com:161 SNMPv2-MIB::system
| $ snmpget -v2c -c public demo.snmplabs.comL1161 SNMPv2-MIB::system
"""#
from twisted.internet.defer import DeferredList
from twisted.internet.task import react
from pysnmp.hlapi.twisted import *
def success((errorStatus, errorIndex, varBindTable), reactor, snmpEngine, hostname):
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 getbulk(reactor, snmpEngine, hostname, *varBindTable[-1])
def failure(errorIndication):
print(errorIndication)
def getbulk(reactor, snmpEngine, hostname, varBinds):
d = bulkCmd(snmpEngine,
UsmUserData('usr-md5-none', 'authkey1'),
UdpTransportTarget(hostname),
ContextData(),
0, 25,
varBinds)
d.addCallback(success, reactor, snmpEngine, hostname).addErrback(failure)
return d
def getall(reactor, hostnames):
snmpEngine = SnmpEngine()
return DeferredList(
[ getbulk(reactor, snmpEngine, hostname,
ObjectType(ObjectIdentity('SNMPv2-MIB', 'system')))
for hostname in hostnames ]
)
react(getall, [(('demo.snmplabs.com', 161), ('demo.snmplabs.com', 1161))])
|
