1 files changed, 63 insertions, 0 deletions
diff --git a/vicn/resource/linux/gre_tunnel.py b/vicn/resource/linux/gre_tunnel.py
new file mode 100644
index 00000000..c5a25307
--- /dev/null
+++ b/vicn/resource/linux/gre_tunnel.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# 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.
+
+import string
+
+from netmodel.model.type            import Integer, String
+from vicn.core.attribute            import Attribute
+from vicn.core.resource             import Resource
+from vicn.core.task                 import BashTask, inherit_parent, override_parent
+from vicn.resource.channel          import Channel
+from vicn.resource.linux.net_device import NetDevice, SlaveNetDevice
+
+CMD_CREATE_GRE_TUNNEL='''
+ip tunnel add {device_name} mode gre remote {dst} local {src} ttl 255
+'''
+
+class GREChannel(Channel):
+    """
+    Resource: GRETunnel
+    """
+    pass
+
+class GREInterface(SlaveNetDevice):
+
+    remote_address = Attribute(String, description ='',
+                    mandatory = True)
+
+    @override_parent
+    def __create__(self):
+        return BashTask(self.src_interface.node, CMD_CREATE_GRE_TUNNEL, {
+            'device_name': self.device_name,
+            'src': str(self.parent.ip4_address),
+            'dst': self.remote_address})
+
+class GRETunnel(Resource):
+
+    src_interface = Attribute(NetDevice, description = 'source interface',
+                mandatory = True)
+    dst_interface = Attribute(NetDevice, description = 'destination interface',
+                mandatory = True)
+
+    @inherit_parent
+    def __subresources__(self):
+        channel = GREChannel()
+        src = GREInterface(node=src_interface.node, device_name="gre0",
+                                    parent=src_interface, channel=channel)
+        dst = GREInterface(node=dst_interface.node, device_name="gre0",
+                                    parent=dst_interface, channel=channel)
+        return (src | dst) | channel