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#!/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
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