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130 lines
3.6 KiB
130 lines
3.6 KiB
2 years ago
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#
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# This file is part of pyasn1-modules software.
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#
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# Copyright (c) 2005-2019, Ilya Etingof <etingof@gmail.com>
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# License: http://snmplabs.com/pyasn1/license.html
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#
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# SNMPv2c message syntax
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#
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# ASN.1 source from:
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# http://www.ietf.org/rfc/rfc1902.txt
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#
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from pyasn1.type import constraint
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from pyasn1.type import namedtype
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from pyasn1.type import tag
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from pyasn1.type import univ
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class Integer(univ.Integer):
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subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(
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-2147483648, 2147483647
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)
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class Integer32(univ.Integer):
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subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(
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-2147483648, 2147483647
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)
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class OctetString(univ.OctetString):
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subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueSizeConstraint(
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0, 65535
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)
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class IpAddress(univ.OctetString):
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tagSet = univ.OctetString.tagSet.tagImplicitly(
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tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x00)
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)
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subtypeSpec = univ.OctetString.subtypeSpec + constraint.ValueSizeConstraint(
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4, 4
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)
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class Counter32(univ.Integer):
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tagSet = univ.Integer.tagSet.tagImplicitly(
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tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x01)
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)
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subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(
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0, 4294967295
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)
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class Gauge32(univ.Integer):
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tagSet = univ.Integer.tagSet.tagImplicitly(
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tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x02)
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)
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subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(
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0, 4294967295
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)
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class Unsigned32(univ.Integer):
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tagSet = univ.Integer.tagSet.tagImplicitly(
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tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x02)
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)
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subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(
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0, 4294967295
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)
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class TimeTicks(univ.Integer):
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tagSet = univ.Integer.tagSet.tagImplicitly(
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tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x03)
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)
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subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(
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0, 4294967295
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)
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class Opaque(univ.OctetString):
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tagSet = univ.OctetString.tagSet.tagImplicitly(
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tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x04)
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)
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class Counter64(univ.Integer):
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tagSet = univ.Integer.tagSet.tagImplicitly(
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tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x06)
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)
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subtypeSpec = univ.Integer.subtypeSpec + constraint.ValueRangeConstraint(
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0, 18446744073709551615
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)
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class Bits(univ.OctetString):
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pass
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class ObjectName(univ.ObjectIdentifier):
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pass
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class SimpleSyntax(univ.Choice):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('integer-value', Integer()),
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namedtype.NamedType('string-value', OctetString()),
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namedtype.NamedType('objectID-value', univ.ObjectIdentifier())
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)
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class ApplicationSyntax(univ.Choice):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('ipAddress-value', IpAddress()),
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namedtype.NamedType('counter-value', Counter32()),
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namedtype.NamedType('timeticks-value', TimeTicks()),
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namedtype.NamedType('arbitrary-value', Opaque()),
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namedtype.NamedType('big-counter-value', Counter64()),
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# This conflicts with Counter32
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# namedtype.NamedType('unsigned-integer-value', Unsigned32()),
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namedtype.NamedType('gauge32-value', Gauge32())
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) # BITS misplaced?
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class ObjectSyntax(univ.Choice):
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componentType = namedtype.NamedTypes(
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namedtype.NamedType('simple', SimpleSyntax()),
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namedtype.NamedType('application-wide', ApplicationSyntax())
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)
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