codekingpro/portable-devtools

1#2# This file is part of pyasn1-modules software.3#4# Copyright (c) 2005-2020, Ilya Etingof <etingof@gmail.com>5# License: http://snmplabs.com/pyasn1/license.html6#7# SNMPv3 message syntax8#9# ASN.1 source from:10# http://www.ietf.org/rfc/rfc3412.txt11#12from pyasn1.type import constraint13from pyasn1.type import namedtype14from pyasn1.type import univ15 16from pyasn1_modules import rfc190517 18 19class ScopedPDU(univ.Sequence):20    componentType = namedtype.NamedTypes(21        namedtype.NamedType('contextEngineId', univ.OctetString()),22        namedtype.NamedType('contextName', univ.OctetString()),23        namedtype.NamedType('data', rfc1905.PDUs())24    )25 26 27class ScopedPduData(univ.Choice):28    componentType = namedtype.NamedTypes(29        namedtype.NamedType('plaintext', ScopedPDU()),30        namedtype.NamedType('encryptedPDU', univ.OctetString()),31    )32 33 34class HeaderData(univ.Sequence):35    componentType = namedtype.NamedTypes(36        namedtype.NamedType('msgID',37                            univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, 2147483647))),38        namedtype.NamedType('msgMaxSize',39                            univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(484, 2147483647))),40        namedtype.NamedType('msgFlags', univ.OctetString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, 1))),41        namedtype.NamedType('msgSecurityModel',42                            univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(1, 2147483647)))43    )44 45 46class SNMPv3Message(univ.Sequence):47    componentType = namedtype.NamedTypes(48        namedtype.NamedType('msgVersion',49                            univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, 2147483647))),50        namedtype.NamedType('msgGlobalData', HeaderData()),51        namedtype.NamedType('msgSecurityParameters', univ.OctetString()),52        namedtype.NamedType('msgData', ScopedPduData())53    )54