127 lines
3.5 KiB
Python
127 lines
3.5 KiB
Python
![]() |
#
|
||
|
# This file is part of pyasn1-modules software.
|
||
|
#
|
||
|
# Copyright (c) 2005-2020, Ilya Etingof <etingof@gmail.com>
|
||
|
# License: http://snmplabs.com/pyasn1/license.html
|
||
|
#
|
||
|
# SNMPv1 message syntax
|
||
|
#
|
||
|
# ASN.1 source from:
|
||
|
# http://www.ietf.org/rfc/rfc1157.txt
|
||
|
#
|
||
|
# Sample captures from:
|
||
|
# http://wiki.wireshark.org/SampleCaptures/
|
||
|
#
|
||
|
from pyasn1.type import namedtype
|
||
|
from pyasn1.type import namedval
|
||
|
from pyasn1.type import tag
|
||
|
from pyasn1.type import univ
|
||
|
|
||
|
from pyasn1_modules import rfc1155
|
||
|
|
||
|
|
||
|
class Version(univ.Integer):
|
||
|
namedValues = namedval.NamedValues(
|
||
|
('version-1', 0)
|
||
|
)
|
||
|
defaultValue = 0
|
||
|
|
||
|
|
||
|
class Community(univ.OctetString):
|
||
|
pass
|
||
|
|
||
|
|
||
|
class RequestID(univ.Integer):
|
||
|
pass
|
||
|
|
||
|
|
||
|
class ErrorStatus(univ.Integer):
|
||
|
namedValues = namedval.NamedValues(
|
||
|
('noError', 0),
|
||
|
('tooBig', 1),
|
||
|
('noSuchName', 2),
|
||
|
('badValue', 3),
|
||
|
('readOnly', 4),
|
||
|
('genErr', 5)
|
||
|
)
|
||
|
|
||
|
|
||
|
class ErrorIndex(univ.Integer):
|
||
|
pass
|
||
|
|
||
|
|
||
|
class VarBind(univ.Sequence):
|
||
|
componentType = namedtype.NamedTypes(
|
||
|
namedtype.NamedType('name', rfc1155.ObjectName()),
|
||
|
namedtype.NamedType('value', rfc1155.ObjectSyntax())
|
||
|
)
|
||
|
|
||
|
|
||
|
class VarBindList(univ.SequenceOf):
|
||
|
componentType = VarBind()
|
||
|
|
||
|
|
||
|
class _RequestBase(univ.Sequence):
|
||
|
componentType = namedtype.NamedTypes(
|
||
|
namedtype.NamedType('request-id', RequestID()),
|
||
|
namedtype.NamedType('error-status', ErrorStatus()),
|
||
|
namedtype.NamedType('error-index', ErrorIndex()),
|
||
|
namedtype.NamedType('variable-bindings', VarBindList())
|
||
|
)
|
||
|
|
||
|
|
||
|
class GetRequestPDU(_RequestBase):
|
||
|
tagSet = _RequestBase.tagSet.tagImplicitly(
|
||
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)
|
||
|
)
|
||
|
|
||
|
|
||
|
class GetNextRequestPDU(_RequestBase):
|
||
|
tagSet = _RequestBase.tagSet.tagImplicitly(
|
||
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)
|
||
|
)
|
||
|
|
||
|
|
||
|
class GetResponsePDU(_RequestBase):
|
||
|
tagSet = _RequestBase.tagSet.tagImplicitly(
|
||
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2)
|
||
|
)
|
||
|
|
||
|
|
||
|
class SetRequestPDU(_RequestBase):
|
||
|
tagSet = _RequestBase.tagSet.tagImplicitly(
|
||
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 3)
|
||
|
)
|
||
|
|
||
|
|
||
|
class TrapPDU(univ.Sequence):
|
||
|
componentType = namedtype.NamedTypes(
|
||
|
namedtype.NamedType('enterprise', univ.ObjectIdentifier()),
|
||
|
namedtype.NamedType('agent-addr', rfc1155.NetworkAddress()),
|
||
|
namedtype.NamedType('generic-trap', univ.Integer().clone(
|
||
|
namedValues=namedval.NamedValues(('coldStart', 0), ('warmStart', 1), ('linkDown', 2), ('linkUp', 3),
|
||
|
('authenticationFailure', 4), ('egpNeighborLoss', 5),
|
||
|
('enterpriseSpecific', 6)))),
|
||
|
namedtype.NamedType('specific-trap', univ.Integer()),
|
||
|
namedtype.NamedType('time-stamp', rfc1155.TimeTicks()),
|
||
|
namedtype.NamedType('variable-bindings', VarBindList())
|
||
|
)
|
||
|
|
||
|
|
||
|
class Pdus(univ.Choice):
|
||
|
componentType = namedtype.NamedTypes(
|
||
|
namedtype.NamedType('get-request', GetRequestPDU()),
|
||
|
namedtype.NamedType('get-next-request', GetNextRequestPDU()),
|
||
|
namedtype.NamedType('get-response', GetResponsePDU()),
|
||
|
namedtype.NamedType('set-request', SetRequestPDU()),
|
||
|
namedtype.NamedType('trap', TrapPDU())
|
||
|
)
|
||
|
|
||
|
|
||
|
class Message(univ.Sequence):
|
||
|
componentType = namedtype.NamedTypes(
|
||
|
namedtype.NamedType('version', Version()),
|
||
|
namedtype.NamedType('community', Community()),
|
||
|
namedtype.NamedType('data', Pdus())
|
||
|
)
|