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#
# This file is part of pysnmp software.
#
# Copyright (c) 2005-2020, Ilya Etingof <etingof@gmail.com>
# License: https://www.pysnmp.com/pysnmp/license.html
#
from pyasn1.type import namedtype, namedval, tag, univ
from pysnmp.proto import rfc1155
__all__ = [
"GetNextRequestPDU",
"GetResponsePDU",
"SetRequestPDU",
"TrapPDU",
"GetRequestPDU",
]
class VarBind(univ.Sequence):
componentType = namedtype.NamedTypes( # noqa: N815
namedtype.NamedType("name", rfc1155.ObjectName()),
namedtype.NamedType("value", rfc1155.ObjectSyntax()),
)
class VarBindList(univ.SequenceOf):
componentType = VarBind() # noqa: N815
errorStatus = univ.Integer( # noqa: N816
namedValues=namedval.NamedValues(
("noError", 0),
("tooBig", 1),
("noSuchName", 2),
("badValue", 3),
("readOnly", 4),
("genErr", 5),
)
)
class _RequestBase(univ.Sequence):
componentType = namedtype.NamedTypes( # noqa: N815
namedtype.NamedType("request-id", univ.Integer()),
namedtype.NamedType("error-status", errorStatus),
namedtype.NamedType("error-index", univ.Integer()),
namedtype.NamedType("variable-bindings", VarBindList()),
)
class GetRequestPDU(_RequestBase):
"""GetRequest PDU."""
tagSet = _RequestBase.tagSet.tagImplicitly( # noqa: N815
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)
)
class GetNextRequestPDU(_RequestBase):
"""GetNextRequest PDU."""
tagSet = _RequestBase.tagSet.tagImplicitly( # noqa: N815
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)
)
class GetResponsePDU(_RequestBase):
"""GetResponse PDU."""
tagSet = _RequestBase.tagSet.tagImplicitly( # noqa: N815
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2)
)
class SetRequestPDU(_RequestBase):
"""SetRequest PDU."""
tagSet = _RequestBase.tagSet.tagImplicitly( # noqa: N815
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 3)
)
genericTrap = univ.Integer().clone( # noqa: N816
namedValues=namedval.NamedValues(
("coldStart", 0),
("warmStart", 1),
("linkDown", 2),
("linkUp", 3),
("authenticationFailure", 4),
("egpNeighborLoss", 5),
("enterpriseSpecific", 6),
)
)
class TrapPDU(univ.Sequence):
"""Trap PDU."""
tagSet = univ.Sequence.tagSet.tagImplicitly( # noqa: N815
tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 4)
)
componentType = namedtype.NamedTypes( # noqa: N815
namedtype.NamedType("enterprise", univ.ObjectIdentifier()),
namedtype.NamedType("agent-addr", rfc1155.NetworkAddress()),
namedtype.NamedType("generic-trap", genericTrap),
namedtype.NamedType("specific-trap", univ.Integer()),
namedtype.NamedType("time-stamp", rfc1155.TimeTicks()),
namedtype.NamedType("variable-bindings", VarBindList()),
)
class PDUs(univ.Choice):
componentType = namedtype.NamedTypes( # noqa: N815
namedtype.NamedType("get-request", GetRequestPDU()),
namedtype.NamedType("get-next-request", GetNextRequestPDU()),
namedtype.NamedType("get-response", GetResponsePDU()),
namedtype.NamedType("set-request", SetRequestPDU()),
namedtype.NamedType("trap", TrapPDU()),
)
version = univ.Integer(namedValues=namedval.NamedValues(("version-1", 0)))
class Message(univ.Sequence):
componentType = namedtype.NamedTypes( # noqa: N815
namedtype.NamedType("version", version),
namedtype.NamedType("community", univ.OctetString()),
namedtype.NamedType("data", PDUs()),
)
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