Re: [pysnmp-users] [BUG] raise exception "PyAsn1Error: Invalid sub-ID in xxx" in some device with p
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Re: [pysnmp-users] [BUG] raise exception "PyAsn1Error: Invalid sub-ID in xxx" in some device with pysnmp 4.3.1
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From: Ilya E. <il...@gl...> - 2015-10-14 19:30:02
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Hi Kim,
That’s a curious error. I can’t easily reproduce it because it is triggered by some specific response from your printer (#2).
Could you enable pysnmp debugging, rerun your test script against the bad IP/OID and send me the output?
Thanks,
ilya
> On 12 Oct 2015, at 10:41, Kim,Young-Kyun <mar...@li...> wrote:
>
> Hi!
>
> Below is my test code.
> When this code run with pysnmp 4.3.1(CVS version, 2015/10/12),
> "PyAsn1Error: Invalid sub-ID in (2, '3837204320') at ObjectName" exception raised in some device.
> This code works well with pysnmp 4.2.5 and 4.3.0.
>
> Test Environment:
> OS : Windows 8.1 Enterprise 64bit
> Python : CPython 2.7.10 32bit
>
> What's wrong?
>
> --------------------------------------------
> from pysnmp.entity.rfc3413.oneliner import cmdgen
>
> def snmpnext(ipaddr, oid):
> community_data = cmdgen.CommunityData('my-agent', 'public', 0)
> udp_trans_target = cmdgen.UdpTransportTarget(ipaddr)
> return cmdgen.CommandGenerator().nextCmd(community_data,udp_trans_target, oid)
>
> def test():
> ipaddr1 = ("192.168.123.178", 161)
> print "1-1=", snmpnext(ipaddr1, (1, 3, 6, 1, 2, 1, 2, 2, 1, 6))
> print "1-2=", snmpnext(ipaddr1, (1, 3, 6, 1, 2, 1, 1, 1))
> ipaddr2 = ("192.168.123.179", 161)
> print "2-1=", snmpnext(ipaddr2, (1, 3, 6, 1, 2, 1, 2, 2, 1, 6))
> print "2-2=", snmpnext(ipaddr2, (1, 3, 6, 1, 2, 1, 1, 1)) # raise error with pysnmp 4.3.1
>
> if __name__ == "__main__":
> test()
> --------------------------------------------
>
> Below is detail log message.
> --------------------------------------------
> 1-1= (None, Integer('noError', NamedValues(('noError', 0), ('tooBig', 1), ('noSuchName', 2), ('badValue', 3), ('readOnly', 4), ('genErr', 5), ('noAccess', 6), ('wrongType', 7), ('wrongLength', 8), ('wrongEncoding', 9), ('wrongValue', 10), ('noCreation', 11), ('inconsistentValue', 12), ('resourceUnavailable', 13), ('commitFailed', 14), ('undoFailed', 15), ('authorizationError', 16), ('notWritable', 17), ('inconsistentName', 18))), Integer(0, subtypeSpec=ConstraintsIntersection(ConstraintsIntersection(), ValueRangeConstraint(0, Integer(2147483647)))), [[ObjectType(ObjectIdentity(ObjectName('1.3.6.1.2.1.2.2.1.6.1')), OctetString(''))], [ObjectType(ObjectIdentity(ObjectName('1.3.6.1.2.1.2.2.1.6.2')), OctetString(hexValue='00237d8b5d7a'))]])
> 1-2= (None, Integer('noError', NamedValues(('noError', 0), ('tooBig', 1), ('noSuchName', 2), ('badValue', 3), ('readOnly', 4), ('genErr', 5), ('noAccess', 6), ('wrongType', 7), ('wrongLength', 8), ('wrongEncoding', 9), ('wrongValue', 10), ('noCreation', 11), ('inconsistentValue', 12), ('resourceUnavailable', 13), ('commitFailed', 14), ('undoFailed', 15), ('authorizationError', 16), ('notWritable', 17), ('inconsistentName', 18))), Integer(0, subtypeSpec=ConstraintsIntersection(ConstraintsIntersection(), ValueRangeConstraint(0, Integer(2147483647)))), [[ObjectType(ObjectIdentity(ObjectName('1.3.6.1.2.1.1.1.0')), DisplayString('HP ETHERNET MULTI-ENVIRONMENT,ROM none,JETDIRECT,JD146,EEPROM V.38.68,CIDATE 09/18/2008', subtypeSpec=ConstraintsIntersection(ConstraintsIntersection(ConstraintsIntersection(ConstraintsIntersection(), ValueSizeConstraint(0, 65535)), ValueSizeConstraint(0, 255)), ValueSizeConstraint(0, 255))))]])
> 2-1= (None, Integer('noError', NamedValues(('noError', 0), ('tooBig', 1), ('noSuchName', 2), ('badValue', 3), ('readOnly', 4), ('genErr', 5), ('noAccess', 6), ('wrongType', 7), ('wrongLength', 8), ('wrongEncoding', 9), ('wrongValue', 10), ('noCreation', 11), ('inconsistentValue', 12), ('resourceUnavailable', 13), ('commitFailed', 14), ('undoFailed', 15), ('authorizationError', 16), ('notWritable', 17), ('inconsistentName', 18))), Integer(0, subtypeSpec=ConstraintsIntersection(ConstraintsIntersection(), ValueRangeConstraint(0, Integer(2147483647)))), [[ObjectType(ObjectIdentity(ObjectName('1.3.6.1.2.1.2.2.1.6.3')), OctetString(hexValue='d89d67eaf3eb'))]])
> 2-2=
> Traceback (most recent call last):
> File "test.py", line 20, in <module>
> test()
> File "test.py", line 17, in test
> print "2-2=", snmpnext(ipaddr2, (1, 3, 6, 1, 2, 1, 1, 1))
> File "test.py", line 9, in snmpnext
> return cmdgen.CommandGenerator().nextCmd(community_data,udp_trans_target, oid)
> File "C:\devtool\py27x86\lib\site-packages\pysnmp\entity\rfc3413\oneliner\cmdgen.py", line 228, in nextCmd
> **kwargs):
> File "C:\devtool\py27x86\lib\site-packages\pysnmp\hlapi\asyncore\sync\cmdgen.py", line 348, in nextCmd
> snmpEngine.transportDispatcher.runDispatcher()
> File "C:\devtool\py27x86\lib\site-packages\pysnmp\carrier\asyncore\dispatch.py", line 41, in runDispatcher
> raise PySnmpError('poll error: %s' % ';'.join(format_exception(*exc_info())))
> pysnmp.error.PySnmpError: poll error: Traceback (most recent call last):
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\carrier\asyncore\dispatch.py", line 37, in runDispatcher
> use_poll=True, map=self.__sockMap, count=1)
> ; File "C:\devtool\py27x86\lib\asyncore.py", line 220, in loop
> poll_fun(timeout, map)
> ; File "C:\devtool\py27x86\lib\asyncore.py", line 156, in poll
> read(obj)
> ; File "C:\devtool\py27x86\lib\asyncore.py", line 87, in read
> obj.handle_error()
> ; File "C:\devtool\py27x86\lib\asyncore.py", line 83, in read
> obj.handle_read_event()
> ; File "C:\devtool\py27x86\lib\asyncore.py", line 449, in handle_read_event
> self.handle_read()
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\carrier\asyncore\dgram\base.py", line 145, in handle_read
> self._cbFun(self, transportAddress, incomingMessage)
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\carrier\base.py", line 52, in _cbFun
> self, transportDomain, transportAddress, incomingMessage
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\entity\engine.py", line 145, in __receiveMessageCbFun
> self, transportDomain, transportAddress, wholeMsg
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\proto\rfc3412.py", line 529, in receiveMessage
> cachedParams['cbCtx']
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\entity\rfc3413\cmdgen.py", line 174, in processResponsePdu
> cbCtx)
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\entity\rfc3413\cmdgen.py", line 407, in processResponseVarBinds
> cbCtx):
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\hlapi\asyncore\cmdgen.py", line 362, in __cbFun
> [ vbProcessor.unmakeVarBinds(snmpEngine, varBindTableRow, lookupMib) for varBindTableRow in varBindTable ],
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\hlapi\varbinds.py", line 37, in unmakeVarBinds
> varBinds = [ ObjectType(ObjectIdentity(x[0]), x[1]).resolveWithMib(mibViewController) for x in varBinds ]
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\smi\rfc1902.py", line 728, in resolveWithMib
> self.__args[1] = ObjectIdentity(self.__args[1]).resolveWithMib(mibViewController)
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\smi\rfc1902.py", line 361, in resolveWithMib
> self.__oid
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\smi\view.py", line 200, in getNodeNameByOid
> nodeName, mibMod['oidToLabelIdx'], mibMod['labelToOidIdx']
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\smi\view.py", line 180, in __getOidLabel
> nodeName[:-1], oidToLabelIdx, labelToOidIdx
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\smi\view.py", line 180, in __getOidLabel
> nodeName[:-1], oidToLabelIdx, labelToOidIdx
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\smi\view.py", line 180, in __getOidLabel
> nodeName[:-1], oidToLabelIdx, labelToOidIdx
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\smi\view.py", line 180, in __getOidLabel
> nodeName[:-1], oidToLabelIdx, labelToOidIdx
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\smi\view.py", line 180, in __getOidLabel
> nodeName[:-1], oidToLabelIdx, labelToOidIdx
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\smi\view.py", line 180, in __getOidLabel
> nodeName[:-1], oidToLabelIdx, labelToOidIdx
> ; File "C:\devtool\py27x86\lib\site-packages\pysnmp\smi\view.py", line 183, in __getOidLabel
> resLabel = label + tuple([ str(x) for x in suffix ])
> ; File "C:\devtool\py27x86\lib\site-packages\pyasn1\type\univ.py", line 497, in __add__
> def __add__(self, other): return self.clone(self._value + other)
> ; File "C:\devtool\py27x86\lib\site-packages\pyasn1\type\base.py", line 117, in clone
> return self.__class__(value, tagSet, subtypeSpec)
> ; File "C:\devtool\py27x86\lib\site-packages\pyasn1\type\base.py", line 74, in __init__
> value = self.prettyIn(value)
> ; File "C:\devtool\py27x86\lib\site-packages\pyasn1\type\univ.py", line 559, in prettyIn
> 'Invalid sub-ID in %s at %s' % (value, self.__class__.__name__)
> ;PyAsn1Error: Invalid sub-ID in (2, '3837204320') at ObjectName
>
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