1 files changed, 73 insertions, 0 deletions
diff --git a/python/pyasn1-modules/pyasn1_modules/rfc1155.py b/python/pyasn1-modules/pyasn1_modules/rfc1155.py
new file mode 100644
index 000000000..9e3c5cdbe
--- /dev/null
+++ b/python/pyasn1-modules/pyasn1_modules/rfc1155.py
@@ -0,0 +1,73 @@
+#
+# 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 univ, namedtype, namedval, tag, constraint
+
+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())
+        )