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Direktori : /lib/python3/dist-packages/pyasn1_modules/ |
Current File : //lib/python3/dist-packages/pyasn1_modules/rfc1155.py |
# # This file is part of pyasn1-modules software. # # Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com> # License: http://pyasn1.sf.net/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()) )