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# Copyright 2015-2016 Intel Corporation.
#
# 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.
"""VSwitch controller for Physical to Tunnel Endpoint to Physical deployment
"""
import logging
from core.vswitch_controller import IVswitchController
from vswitches.utils import add_ports_to_flow
from conf import settings
from tools import tasks
_FLOW_TEMPLATE = {
'idle_timeout': '0'
}
class VswitchControllerOP2P(IVswitchController):
"""VSwitch controller for OP2P deployment scenario.
Attributes:
_vswitch_class: The vSwitch class to be used.
_vswitch: The vSwitch object controlled by this controller
_deployment_scenario: A string describing the scenario to set-up in the
constructor.
"""
def __init__(self, vswitch_class, traffic, tunnel_operation=None):
"""Initializes up the prerequisites for the OP2P deployment scenario.
:vswitch_class: the vSwitch class to be used.
"""
self._logger = logging.getLogger(__name__)
self._vswitch_class = vswitch_class
self._vswitch = vswitch_class()
self._deployment_scenario = "OP2P"
self._traffic = traffic.copy()
self._tunnel_operation = tunnel_operation
self._logger.debug('Creation using ' + str(self._vswitch_class))
def setup(self):
""" Sets up the switch for overlay P2P (tunnel encap or decap)
"""
self._logger.debug('Setting up ' + str(self._tunnel_operation))
if self._tunnel_operation == "encapsulation":
self._setup_encap()
else:
self._setup_decap()
def _setup_encap(self):
""" Sets up the switch for overlay P2P encapsulation test
Create 2 bridges br0 (integration bridge) and br-ext and a VXLAN port
for encapsulation.
"""
self._logger.debug('Setup using ' + str(self._vswitch_class))
try:
self._vswitch.start()
bridge = settings.getValue('TUNNEL_INTEGRATION_BRIDGE')
bridge_ext = settings.getValue('TUNNEL_EXTERNAL_BRIDGE')
bridge_ext_ip = settings.getValue('TUNNEL_EXTERNAL_BRIDGE_IP')
tg_port2_mac = settings.getValue('TRAFFICGEN_PORT2_MAC')
vtep_ip2 = settings.getValue('VTEP_IP2')
self._vswitch.add_switch(bridge)
tasks.run_task(['sudo', 'ifconfig', bridge,
settings.getValue('VTEP_IP1')],
self._logger, 'Assign ' +
settings.getValue('VTEP_IP1') + ' to ' + bridge,
False)
tunnel_type = self._traffic['tunnel_type']
self._vswitch.add_switch(bridge_ext)
(_, phy1_number) = self._vswitch.add_phy_port(bridge)
(_, phy2_number) = self._vswitch.add_tunnel_port(bridge,
vtep_ip2,
tunnel_type)
self._vswitch.add_phy_port(bridge_ext)
tasks.run_task(['sudo', 'ip', 'addr', 'add',
bridge_ext_ip,
'dev', bridge_ext], self._logger, 'Assign ' +
bridge_ext_ip + ' to ' + bridge_ext)
tasks.run_task(['sudo', 'ip', 'link', 'set', 'dev', bridge_ext,
'up'], self._logger,
'Set ' + bridge_ext + 'status to up')
self._vswitch.add_route(bridge,
settings.getValue('VTEP_IP2_SUBNET'),
bridge_ext)
if settings.getValue('VSWITCH').endswith('Vanilla'):
tasks.run_task(['sudo', 'arp', '-s', vtep_ip2, tg_port2_mac],
self._logger,
'Set ' + bridge_ext + ' status to up')
else:
self._vswitch.set_tunnel_arp(vtep_ip2,
tg_port2_mac,
bridge_ext)
# Test is unidirectional for now
self._vswitch.del_flow(bridge)
flow1 = add_ports_to_flow(_FLOW_TEMPLATE, phy1_number,
phy2_number)
self._vswitch.add_flow(bridge, flow1)
except:
self._vswitch.stop()
raise
def _setup_decap(self):
""" Sets up the switch for overlay P2P decapsulation test
"""
self._logger.debug('Setup using ' + str(self._vswitch_class))
try:
self._vswitch.start()
bridge = settings.getValue('TUNNEL_INTEGRATION_BRIDGE')
bridge_ext = settings.getValue('TUNNEL_EXTERNAL_BRIDGE')
bridge_ext_ip = settings.getValue('TUNNEL_EXTERNAL_BRIDGE_IP')
tgen_ip1 = settings.getValue('TRAFFICGEN_PORT1_IP')
self._vswitch.add_switch(bridge)
tasks.run_task(['sudo', 'ifconfig', bridge,
settings.getValue('VTEP_IP1')],
self._logger, 'Assign ' +
settings.getValue('VTEP_IP1') + ' to ' + bridge, False)
tunnel_type = self._traffic['tunnel_type']
self._vswitch.add_switch(bridge_ext)
self._vswitch.add_phy_port(bridge)
(_, phy2_number) = self._vswitch.add_phy_port(bridge_ext)
vxlan_vni = 'options:key=' + settings.getValue('VXLAN_VNI')
(_, phy3_number) = self._vswitch.add_tunnel_port(bridge_ext,
tgen_ip1,
tunnel_type,
params=[vxlan_vni])
tasks.run_task(['sudo', 'ip', 'addr', 'add',
bridge_ext_ip,
'dev', bridge_ext],
self._logger, 'Assign ' +
bridge_ext_ip
+ ' to ' + bridge_ext)
tasks.run_task(['sudo', 'ip', 'link', 'set', 'dev', bridge_ext,
'up'],
self._logger,
'Set ' + bridge_ext + ' status to up')
self._vswitch.set_tunnel_arp(tgen_ip1,
settings.getValue('TRAFFICGEN_PORT1_MAC'),
bridge)
self._vswitch.set_tunnel_arp(bridge_ext_ip.split('/')[0],
settings.getValue('DUT_NIC1_MAC'),
bridge_ext)
# Test is unidirectional for now
self._vswitch.del_flow(bridge_ext)
flow1 = add_ports_to_flow(_FLOW_TEMPLATE, phy3_number,
phy2_number)
self._vswitch.add_flow(bridge_ext, flow1)
except:
self._vswitch.stop()
raise
def stop(self):
"""Tears down the switch created in setup().
"""
self._logger.debug('Stop using ' + str(self._vswitch_class))
self._vswitch.stop()
def __enter__(self):
self.setup()
def __exit__(self, type_, value, traceback):
self.stop()
def get_vswitch(self):
"""See IVswitchController for description
"""
return self._vswitch
def get_ports_info(self):
"""See IVswitchController for description
"""
self._logger.debug('get_ports_info using ' + str(self._vswitch_class))
return self._vswitch.get_ports(settings.getValue('VSWITCH_BRIDGE_NAME'))
def dump_vswitch_flows(self):
"""See IVswitchController for description
"""
self._vswitch.dump_flows(settings.getValue('VSWITCH_BRIDGE_NAME'))
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