1 files changed, 41 insertions, 0 deletions
diff --git a/resources/libraries/python/SFC/TunnelProtocol.py b/resources/libraries/python/SFC/TunnelProtocol.py
new file mode 100644
index 0000000000..4b4377c895
--- /dev/null
+++ b/resources/libraries/python/SFC/TunnelProtocol.py
@@ -0,0 +1,41 @@
+# Copyright (c) 2017 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+This module implements the VxLAN/VXLAN-GPE/NSH protocol
+for the packet analyse.
+"""
+from scapy.all import Packet
+from scapy.all import XByteField, ShortField
+from scapy.all import BitField, XBitField, IntField
+
+class VxLAN(Packet):
+    """Define the vxlan protocol for the packet analysis."""
+    name = "vxlan"
+    fields_desc = [XByteField("flags", 0x08), BitField("reserved", 0, 24),
+                   BitField("vni", 0, 24), XByteField("reserved", 0x00)]
+
+class VxLANGPE(Packet):
+    """Define the vxlan-gpe protocol for the packet analysis."""
+    name = "vxlan-gpe"
+    fields_desc = [XByteField("flags", 0x0c), ShortField("reserved", 0),
+                   XByteField("nextproto", 0x3), BitField("vni", 0, 24),
+                   XByteField("reserved", 0x0)]
+
+class NSH(Packet):
+    """Define the NSH protocol for the packet analysis."""
+    name = "nsh"
+    fields_desc = [XBitField("flags", 0x0, 10), XBitField("length", 0x6, 6),
+                   XByteField("MDtype", 0x1), XByteField("nextproto", 0x3),
+                   IntField("nsp_nsi", 0), IntField("c1", 0),
+                   IntField("c2", 0), IntField("c3", 0), IntField("c4", 0)]