initial revision

4 files changed, 260 insertions, 0 deletions

diff --git a/pyasn1_modules/rfc1902.py b/pyasn1_modules/rfc1902.py
new file mode 100644
index 0000000..df0b0c3
--- /dev/null
+++ b/pyasn1_modules/rfc1902.py
@@ -0,0 +1,105 @@
+#
+# SNMPv2c message syntax
+#
+# ASN.1 source from:
+# http://www.ietf.org/rfc/rfc1902.txt
+#
+from pyasn1.type import univ, namedtype, namedval, tag, constraint
+
+class Integer(univ.Integer):
+    subtypeSpec = univ.Integer.subtypeSpec+constraint.ValueRangeConstraint(
+        -2147483648, 2147483647
+        )
+
+class Integer32(univ.Integer):
+    subtypeSpec = univ.Integer.subtypeSpec+constraint.ValueRangeConstraint(
+        -2147483648, 2147483647
+        )
+    
+class OctetString(univ.OctetString):
+    subtypeSpec = univ.Integer.subtypeSpec+constraint.ValueSizeConstraint(
+        0, 65535
+        )
+
+class IpAddress(univ.OctetString):
+    tagSet = univ.OctetString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x00)
+        )
+    subtypeSpec = univ.OctetString.subtypeSpec+constraint.ValueSizeConstraint(
+        4, 4
+        )
+
+class Counter32(univ.Integer):
+    tagSet = univ.Integer.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x01)
+        )
+    subtypeSpec = univ.Integer.subtypeSpec+constraint.ValueRangeConstraint(
+        0, 4294967295
+        )
+
+class Gauge32(univ.Integer):
+    tagSet = univ.Integer.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x02)
+        )
+    subtypeSpec = univ.Integer.subtypeSpec+constraint.ValueRangeConstraint(
+        0, 4294967295
+        )
+
+class Unsigned32(univ.Integer):
+    tagSet = univ.Integer.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x02)
+        )
+    subtypeSpec = univ.Integer.subtypeSpec+constraint.ValueRangeConstraint(
+        0, 4294967295
+        )
+
+class TimeTicks(univ.Integer):
+    tagSet = univ.Integer.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x03)
+        )
+    subtypeSpec = univ.Integer.subtypeSpec+constraint.ValueRangeConstraint(
+        0, 4294967295
+        )
+
+class Opaque(univ.OctetString):
+    tagSet = univ.OctetString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x04)
+        )
+
+class Counter64(univ.Integer):
+    tagSet = univ.Integer.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassApplication, tag.tagFormatSimple, 0x06)
+        )
+    subtypeSpec = univ.Integer.subtypeSpec+constraint.ValueRangeConstraint(
+        0, 18446744073709551615
+        )
+
+class Bits(univ.OctetString): pass
+
+class ObjectName(univ.ObjectIdentifier): pass
+
+class SimpleSyntax(univ.Choice):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('integer-value', Integer()),
+        namedtype.NamedType('string-value', OctetString()),
+        namedtype.NamedType('objectID-value', univ.ObjectIdentifier())
+        )
+
+class ApplicationSyntax(univ.Choice):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('ipAddress-value', IpAddress()),
+        namedtype.NamedType('counter-value', Counter32()),
+        namedtype.NamedType('timeticks-value', TimeTicks()),
+        namedtype.NamedType('arbitrary-value', Opaque()),
+        namedtype.NamedType('big-counter-value', Counter64()),
+# This conflicts with Counter32
+#        namedtype.NamedType('unsigned-integer-value', Unsigned32()),
+        namedtype.NamedType('gauge32-value', Gauge32())
+        ) # BITS misplaced?
+
+class ObjectSyntax(univ.Choice):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('simple', SimpleSyntax()),
+        namedtype.NamedType('application-wide', ApplicationSyntax())
+        )
+
diff --git a/pyasn1_modules/rfc1905.py b/pyasn1_modules/rfc1905.py
new file mode 100644
index 0000000..ab6528f
--- /dev/null
+++ b/pyasn1_modules/rfc1905.py
@@ -0,0 +1,100 @@
+#
+# SNMPv2c message syntax
+#
+# ASN.1 source from:
+# http://www.ietf.org/rfc/rfc1905.txt
+#
+from pyasn1.type import univ, namedtype, namedval, tag, constraint
+from pyasn1_modules import rfc1902
+
+max_bindings = rfc1902.Integer(2147483647)
+
+class _BindValue(univ.Choice):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('value', rfc1902.ObjectSyntax()),
+        namedtype.NamedType('unSpecified', univ.Null()),
+        namedtype.NamedType('noSuchObject', univ.Null().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 0))),
+        namedtype.NamedType('noSuchInstance', univ.Null().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 1))),
+        namedtype.NamedType('endOfMibView', univ.Null().subtype(implicitTag=tag.Tag(tag.tagClassContext, tag.tagFormatSimple, 2)))
+        )
+        
+class VarBind(univ.Sequence):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('name', rfc1902.ObjectName()),
+        namedtype.NamedType('', _BindValue())
+        )
+    
+class VarBindList(univ.SequenceOf):
+    componentType = VarBind()
+    subtypeSpec = univ.SequenceOf.subtypeSpec + constraint.ValueSizeConstraint(
+        0, max_bindings
+        )
+
+class PDU(univ.Sequence):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('request-id', rfc1902.Integer32()),
+        namedtype.NamedType('error-status', univ.Integer(namedValues=namedval.NamedValues(('noError', 0), ('tooBig', 1), ('noSuchName', 2), ('badValue', 3), ('readOnly', 4), ('genErr', 5), ('noAccess', 6), ('wrongType', 7), ('wrongLength', 8), ('wrongEncoding', 9), ('wrongValue', 10), ('noCreation', 11), ('inconsistentValue', 12), ('resourceUnavailable', 13), ('commitFailed', 14), ('undoFailed', 15), ('authorizationError', 16), ('notWritable', 17), ('inconsistentName', 18)))),
+        namedtype.NamedType('error-index', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, max_bindings))),
+        namedtype.NamedType('variable-bindings', VarBindList())
+        )
+
+class BulkPDU(univ.Sequence):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('request-id', rfc1902.Integer32()),
+        namedtype.NamedType('non-repeaters', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, max_bindings))),
+        namedtype.NamedType('max-repetitions', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, max_bindings))),
+        namedtype.NamedType('variable-bindings', VarBindList())
+        )
+
+class GetRequestPDU(PDU):
+    tagSet = PDU.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 0)
+        )
+
+class GetNextRequestPDU(PDU):
+    tagSet = PDU.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 1)
+        )
+
+class ResponsePDU(PDU):
+    tagSet = PDU.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 2)
+        )
+
+class SetRequestPDU(PDU):
+    tagSet = PDU.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 3)
+        )
+
+class GetBulkRequestPDU(BulkPDU):
+    tagSet = PDU.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 5)
+        )
+
+class InformRequestPDU(PDU):
+    tagSet = PDU.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 6)
+        )
+
+class SNMPv2TrapPDU(PDU):
+    tagSet = PDU.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 7)
+        )
+
+class ReportPDU(PDU):
+    tagSet = PDU.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassContext, tag.tagFormatConstructed, 8)
+        )
+
+class PDUs(univ.Choice):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('get-request', GetRequestPDU()),
+        namedtype.NamedType('get-next-request', GetNextRequestPDU()),
+        namedtype.NamedType('get-bulk-request', GetBulkRequestPDU()),
+        namedtype.NamedType('response', ResponsePDU()),
+        namedtype.NamedType('set-request', SetRequestPDU()),
+        namedtype.NamedType('inform-request', InformRequestPDU()),
+        namedtype.NamedType('snmpV2-trap', SNMPv2TrapPDU()),
+        namedtype.NamedType('report', ReportPDU())
+        )
+
diff --git a/pyasn1_modules/rfc3412.py b/pyasn1_modules/rfc3412.py
new file mode 100644
index 0000000..e80ce31
--- /dev/null
+++ b/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())
+         )
+
diff --git a/pyasn1_modules/rfc3414.py b/pyasn1_modules/rfc3414.py
new file mode 100644
index 0000000..580c88e
--- /dev/null
+++ b/pyasn1_modules/rfc3414.py
@@ -0,0 +1,17 @@
+#
+# SNMPv3 message syntax
+#
+# ASN.1 source from:
+# http://www.ietf.org/rfc/rfc3414.txt
+#
+from pyasn1.type import univ, namedtype, namedval, tag, constraint
+
+class UsmSecurityParameters(univ.Sequence):
+    componentType = namedtype.NamedTypes(
+        namedtype.NamedType('msgAuthoritativeEngineID', univ.OctetString()),
+        namedtype.NamedType('msgAuthoritativeEngineBoots', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, 2147483647))),
+        namedtype.NamedType('msgAuthoritativeEngineTime', univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(0, 2147483647))),
+        namedtype.NamedType('msgUserName', univ.OctetString().subtype(subtypeSpec=constraint.ValueSizeConstraint(0, 32))),
+        namedtype.NamedType('msgAuthenticationParameters', univ.OctetString()),
+        namedtype.NamedType('msgPrivacyParameters', univ.OctetString())
+        )