97 lines
2.6 KiB
Python
97 lines
2.6 KiB
Python
|
#
|
||
|
|
# This file is part of pyasn1-modules software.
|
||
|
|
#
|
||
|
|
# Copyright (c) 2005-2018, Ilya Etingof <etingof@gmail.com>
|
||
|
|
# License: http://snmplabs.com/pyasn1/license.html
|
||
|
|
#
|
||
|
|
# SNMPv1 message syntax
|
||
|
|
#
|
||
|
|
# ASN.1 source from:
|
||
|
|
# http://www.ietf.org/rfc/rfc1155.txt
|
||
|
|
#
|
||
|
|
# Sample captures from:
|
||
|
|
# http://wiki.wireshark.org/SampleCaptures/
|
||
|
|
#
|
||
|
|
from pyasn1.type import constraint
|
||
|
|
from pyasn1.type import namedtype
|
||
|
|
from pyasn1.type import tag
|
||
|
|
from pyasn1.type import univ
|
||
|
|
|
||
|
|
|
||
|
|
class ObjectName(univ.ObjectIdentifier):
|
||
|
|
pass
|
||
|
|
|
||
|
|
|
||
|
|
class SimpleSyntax(univ.Choice):
|
||
|
|
componentType = namedtype.NamedTypes(
|
||
|
|
namedtype.NamedType('number', univ.Integer()),
|
||
|
|
namedtype.NamedType('string', univ.OctetString()),
|
||
|
|
namedtype.NamedType('object', univ.ObjectIdentifier()),
|
||
|
|
namedtype.NamedType('empty', univ.Null())
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class IpAddress(univ.OctetString):
|
||
|
|
tagSet = univ.OctetString.tagSet.tagImplicitly(
|
||
|
|
tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0)
|
||
|
|
)
|
||
|
|
subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueSizeConstraint(
|
||
|
|
4, 4
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class NetworkAddress(univ.Choice):
|
||
|
|
componentType = namedtype.NamedTypes(
|
||
|
|
namedtype.NamedType('internet', IpAddress())
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class Counter(univ.Integer):
|
||
|
|
tagSet = univ.Integer.tagSet.tagImplicitly(
|
||
|
|
tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 1)
|
||
|
|
)
|
||
|
|
subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(
|
||
|
|
0, 4294967295
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class Gauge(univ.Integer):
|
||
|
|
tagSet = univ.Integer.tagSet.tagImplicitly(
|
||
|
|
tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 2)
|
||
|
|
)
|
||
|
|
subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(
|
||
|
|
0, 4294967295
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class TimeTicks(univ.Integer):
|
||
|
|
tagSet = univ.Integer.tagSet.tagImplicitly(
|
||
|
|
tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 3)
|
||
|
|
)
|
||
|
|
subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(
|
||
|
|
0, 4294967295
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class Opaque(univ.OctetString):
|
||
|
|
tagSet = univ.OctetString.tagSet.tagImplicitly(
|
||
|
|
tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 4)
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class ApplicationSyntax(univ.Choice):
|
||
|
|
componentType = namedtype.NamedTypes(
|
||
|
|
namedtype.NamedType('address', NetworkAddress()),
|
||
|
|
namedtype.NamedType('counter', Counter()),
|
||
|
|
namedtype.NamedType('gauge', Gauge()),
|
||
|
|
namedtype.NamedType('ticks', TimeTicks()),
|
||
|
|
namedtype.NamedType('arbitrary', Opaque())
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class ObjectSyntax(univ.Choice):
|
||
|
|
componentType = namedtype.NamedTypes(
|
||
|
|
namedtype.NamedType('simple', SimpleSyntax()),
|
||
|
|
namedtype.NamedType('application-wide', ApplicationSyntax())
|
||
|
|
)
|