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Diffstat (limited to 'core/vswitch_controller_p2p.py')
-rw-r--r-- | core/vswitch_controller_p2p.py | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/core/vswitch_controller_p2p.py b/core/vswitch_controller_p2p.py new file mode 100644 index 00000000..ceb29aa9 --- /dev/null +++ b/core/vswitch_controller_p2p.py @@ -0,0 +1,90 @@ +# Copyright 2015 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 Physical deployment +""" + +import logging + +from core.vswitch_controller import IVswitchController +from vswitches.utils import add_ports_to_flow + +_FLOW_TEMPLATE = { + 'idle_timeout': '0' +} +BRIDGE_NAME = 'br0' + +class VswitchControllerP2P(IVswitchController): + """VSwitch controller for P2P 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): + """Initializes up the prerequisites for the P2P 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 = "P2P" + self._logger.debug('Creation using ' + str(self._vswitch_class)) + + def setup(self): + """Sets up the switch for p2p. + """ + self._logger.debug('Setup using ' + str(self._vswitch_class)) + + try: + self._vswitch.start() + + self._vswitch.add_switch(BRIDGE_NAME) + + (_, phy1_number) = self._vswitch.add_phy_port(BRIDGE_NAME) + (_, phy2_number) = self._vswitch.add_phy_port(BRIDGE_NAME) + + self._vswitch.del_flow(BRIDGE_NAME) + flow = add_ports_to_flow(_FLOW_TEMPLATE, phy1_number, phy2_number) + self._vswitch.add_flow(BRIDGE_NAME, flow) + + 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(BRIDGE_NAME) |