1 files changed, 105 insertions, 0 deletions
diff --git a/python/pyasn1-modules/pyasn1_modules/rfc1902.py b/python/pyasn1-modules/pyasn1_modules/rfc1902.py
new file mode 100644
index 000000000..df0b0c3dc
--- /dev/null
+++ b/python/pyasn1-modules/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())
+        )
+