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# Copyright (c) 2016 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.
"""Robot framework variable file.
Create dictionary variable nodes_ipv6_addr with IPv6 addresses from available
networks.
"""
from resources.libraries.python.IPv6Setup import IPv6Networks
from resources.libraries.python.topology import Topology
# Default list of available IPv6 networks
IPV6_NETWORKS = ['3ffe:{0:04x}::/64'.format(i) for i in range(1, 100)]
def get_variables(nodes, networks=IPV6_NETWORKS):
"""Special robot framework method that returns dictionary nodes_ipv6_addr,
mapping of node and interface name to IPv6 address.
:param nodes: Nodes of the test topology.
:param networks: List of available IPv6 networks.
:type nodes: dict
:type networks: list
.. note::
Robot framework calls it automatically.
"""
topo = Topology()
links = topo.get_links(nodes)
if len(links) > len(networks):
raise Exception('Not enough available IPv6 networks for topology.')
ip6_n = IPv6Networks(networks)
nets = {}
for link in links:
ip6_net = ip6_n.next_network()
net_hosts = ip6_net.hosts()
port_idx = 0
ports = {}
for node in nodes.values():
if_key = topo.get_interface_by_link_name(node, link)
if_name = topo.get_interface_name(node, if_key)
if if_name is not None:
port = {'addr': str(next(net_hosts)),
'node': node['host'],
'if': if_name}
port_idx += 1
port_id = 'port{0}'.format(port_idx)
ports.update({port_id: port})
nets.update({link: {'net_addr': str(ip6_net.network_address),
'prefix': ip6_net.prefixlen,
'ports': ports}})
return {'DICT__nodes_ipv6_addr': nets}
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