forked from mirrors/gecko-dev
100 lines
4.1 KiB
Python
100 lines
4.1 KiB
Python
#
|
|
# SNMPv2c PDU syntax
|
|
#
|
|
# ASN.1 source from:
|
|
# http://www.ietf.org/rfc/rfc1905.txt
|
|
#
|
|
from pyasn1.type import univ, namedtype, namedval, tag, constraint
|
|
from pyasn1_modules import rfc1902
|
|
|
|
max_bindings = rfc1902.Integer(2147483647)
|
|
|
|
class _BindValue(univ.Choice):
|
|
componentType = namedtype.NamedTypes(
|
|
namedtype.NamedType('value', rfc1902.ObjectSyntax()),
|
|
namedtype.NamedType('unSpecified', univ.Null()),
|
|
namedtype.NamedType('noSuchObject', univ.Null().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
|
|
namedtype.NamedType('noSuchInstance', univ.Null().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
|
|
namedtype.NamedType('endOfMibView', univ.Null().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2)))
|
|
)
|
|
|
|
class VarBind(univ.Sequence):
|
|
componentType = namedtype.NamedTypes(
|
|
namedtype.NamedType('name', rfc1902.ObjectName()),
|
|
namedtype.NamedType('', _BindValue())
|
|
)
|
|
|
|
class VarBindList(univ.SequenceOf):
|
|
componentType = VarBind()
|
|
subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(
|
|
0, max_bindings
|
|
)
|
|
|
|
class PDU(univ.Sequence):
|
|
componentType = namedtype.NamedTypes(
|
|
namedtype.NamedType('request-id', rfc1902.Integer32()),
|
|
namedtype.NamedType('error-status', univ.Integer(namedValues=namedval.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)))),
|
|
namedtype.NamedType('error-index', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, max_bindings))),
|
|
namedtype.NamedType('variable-bindings', VarBindList())
|
|
)
|
|
|
|
class BulkPDU(univ.Sequence):
|
|
componentType = namedtype.NamedTypes(
|
|
namedtype.NamedType('request-id', rfc1902.Integer32()),
|
|
namedtype.NamedType('non-repeaters', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, max_bindings))),
|
|
namedtype.NamedType('max-repetitions', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, max_bindings))),
|
|
namedtype.NamedType('variable-bindings', VarBindList())
|
|
)
|
|
|
|
class GetRequestPDU(PDU):
|
|
tagSet = PDU.tagSet.tagImplicitly(
|
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)
|
|
)
|
|
|
|
class GetNextRequestPDU(PDU):
|
|
tagSet = PDU.tagSet.tagImplicitly(
|
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)
|
|
)
|
|
|
|
class ResponsePDU(PDU):
|
|
tagSet = PDU.tagSet.tagImplicitly(
|
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2)
|
|
)
|
|
|
|
class SetRequestPDU(PDU):
|
|
tagSet = PDU.tagSet.tagImplicitly(
|
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 3)
|
|
)
|
|
|
|
class GetBulkRequestPDU(BulkPDU):
|
|
tagSet = PDU.tagSet.tagImplicitly(
|
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 5)
|
|
)
|
|
|
|
class InformRequestPDU(PDU):
|
|
tagSet = PDU.tagSet.tagImplicitly(
|
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 6)
|
|
)
|
|
|
|
class SNMPv2TrapPDU(PDU):
|
|
tagSet = PDU.tagSet.tagImplicitly(
|
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 7)
|
|
)
|
|
|
|
class ReportPDU(PDU):
|
|
tagSet = PDU.tagSet.tagImplicitly(
|
|
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 8)
|
|
)
|
|
|
|
class PDUs(univ.Choice):
|
|
componentType = namedtype.NamedTypes(
|
|
namedtype.NamedType('get-request', GetRequestPDU()),
|
|
namedtype.NamedType('get-next-request', GetNextRequestPDU()),
|
|
namedtype.NamedType('get-bulk-request', GetBulkRequestPDU()),
|
|
namedtype.NamedType('response', ResponsePDU()),
|
|
namedtype.NamedType('set-request', SetRequestPDU()),
|
|
namedtype.NamedType('inform-request', InformRequestPDU()),
|
|
namedtype.NamedType('snmpV2-trap', SNMPv2TrapPDU()),
|
|
namedtype.NamedType('report', ReportPDU())
|
|
)
|
|
|