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# Copyright (c) 2015 Huawei Technologies India Pvt Ltd
# All Rights Reserved.
#
# 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.
from oslo_config import cfg
from oslo_log import helpers as log_helpers
from oslo_log import log as logging
from neutron.common import constants as n_const
from neutron.extensions import portbindings
from neutron.plugins.common import constants
from neutron.plugins.ml2 import driver_api as api
from networking_onos.common import config # noqa
from networking_onos.common import utils as onos_utils
LOG = logging.getLogger(__name__)
class ONOSMechanismDriver(api.MechanismDriver):
"""Open Networking Operating System ML2 Driver for Neutron.
Code which makes communication between ONOS and OpenStack Neutron
possible.
"""
def __init__(self):
self.onos_path = cfg.CONF.onos.url_path
self.onos_auth = (cfg.CONF.onos.username, cfg.CONF.onos.password)
self.vif_type = portbindings.VIF_TYPE_OVS
self.vif_details = {portbindings.CAP_PORT_FILTER: True}
def initialize(self):
# No action required as of now. Can be extended in
# the future if required.
pass
@log_helpers.log_method_call
def create_network_postcommit(self, context):
entity_path = 'networks'
resource = context.current.copy()
onos_utils.send_msg(self.onos_path, self.onos_auth, 'post',
entity_path, {'network': resource})
@log_helpers.log_method_call
def update_network_postcommit(self, context):
entity_path = 'networks/' + context.current['id']
resource = context.current.copy()
onos_utils.send_msg(self.onos_path, self.onos_auth, 'put',
entity_path, {'network': resource})
@log_helpers.log_method_call
def delete_network_postcommit(self, context):
entity_path = 'networks/' + context.current['id']
onos_utils.send_msg(self.onos_path, self.onos_auth, 'delete',
entity_path)
@log_helpers.log_method_call
def create_subnet_postcommit(self, context):
entity_path = 'subnets'
resource = context.current.copy()
onos_utils.send_msg(self.onos_path, self.onos_auth, 'post',
entity_path, {'subnet': resource})
@log_helpers.log_method_call
def update_subnet_postcommit(self, context):
entity_path = 'subnets/' + context.current['id']
resource = context.current.copy()
onos_utils.send_msg(self.onos_path, self.onos_auth, 'put',
entity_path, {'subnet': resource})
@log_helpers.log_method_call
def delete_subnet_postcommit(self, context):
entity_path = 'subnets/' + context.current['id']
onos_utils.send_msg(self.onos_path, self.onos_auth, 'delete',
entity_path)
@log_helpers.log_method_call
def create_port_postcommit(self, context):
entity_path = 'ports'
resource = context.current.copy()
onos_utils.send_msg(self.onos_path, self.onos_auth, 'post',
entity_path, {'port': resource})
@log_helpers.log_method_call
def update_port_postcommit(self, context):
entity_path = 'ports/' + context.current['id']
resource = context.current.copy()
onos_utils.send_msg(self.onos_path, self.onos_auth, 'put',
entity_path, {'port': resource})
@log_helpers.log_method_call
def delete_port_postcommit(self, context):
entity_path = 'ports/' + context.current['id']
onos_utils.send_msg(self.onos_path, self.onos_auth, 'delete',
entity_path)
@log_helpers.log_method_call
def bind_port(self, context):
"""Set port binding data for use with nova."""
LOG.debug("Attempting to bind port %(port)s on network %(network)s",
{'port': context.current['id'],
'network': context.network.current['id']})
# Prepared porting binding data
for segment in context.segments_to_bind:
if self.check_segment(segment):
context.set_binding(segment[api.ID],
self.vif_type,
self.vif_details,
status=n_const.PORT_STATUS_ACTIVE)
LOG.debug("Port bound successful for segment: %s", segment)
return
else:
LOG.debug("Port bound un-successfult for segment ID %(id)s, "
"segment %(seg)s, phys net %(physnet)s, and "
"network type %(nettype)s",
{'id': segment[api.ID],
'seg': segment[api.SEGMENTATION_ID],
'physnet': segment[api.PHYSICAL_NETWORK],
'nettype': segment[api.NETWORK_TYPE]})
@log_helpers.log_method_call
def check_segment(self, segment):
"""Check whether segment is valid for the ONOS MechanismDriver."""
return segment[api.NETWORK_TYPE] in [constants.TYPE_LOCAL,
constants.TYPE_GRE,
constants.TYPE_VXLAN,
constants.TYPE_VLAN]
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