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Diffstat (limited to 'python/pyasn1-modules/pyasn1_modules/rfc3412.py')
| -rw-r--r-- | python/pyasn1-modules/pyasn1_modules/rfc3412.py | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/python/pyasn1-modules/pyasn1_modules/rfc3412.py b/python/pyasn1-modules/pyasn1_modules/rfc3412.py new file mode 100644 index 000000000..e80ce3155 --- /dev/null +++ b/python/pyasn1-modules/pyasn1_modules/rfc3412.py @@ -0,0 +1,38 @@ +# +# SNMPv3 message syntax +# +# ASN.1 source from: +# http://www.ietf.org/rfc/rfc3412.txt +# +from pyasn1.type import univ, namedtype, namedval, tag, constraint +from pyasn1_modules import rfc1905 + +class ScopedPDU(univ.Sequence): + componentType = namedtype.NamedTypes( + namedtype.NamedType('contextEngineId', univ.OctetString()), + namedtype.NamedType('contextName', univ.OctetString()), + namedtype.NamedType('data', rfc1905.PDUs()) + ) + +class ScopedPduData(univ.Choice): + componentType = namedtype.NamedTypes( + namedtype.NamedType('plaintext', ScopedPDU()), + namedtype.NamedType('encryptedPDU', univ.OctetString()), + ) + +class HeaderData(univ.Sequence): + componentType = namedtype.NamedTypes( + namedtype.NamedType('msgID', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, 2147483647))), + namedtype.NamedType('msgMaxSize', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(484, 2147483647))), + namedtype.NamedType('msgFlags', univ.OctetString().subtype(subtypeSpec=constraint.ValueSizeConstraint(1, 1))), + namedtype.NamedType('msgSecurityModel', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(1, 2147483647))) + ) + +class SNMPv3Message(univ.Sequence): + componentType = namedtype.NamedTypes( + namedtype.NamedType('msgVersion', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, 2147483647))), + namedtype.NamedType('msgGlobalData', HeaderData()), + namedtype.NamedType('msgSecurityParameters', univ.OctetString()), + namedtype.NamedType('msgData', ScopedPduData()) + ) + |