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# Copyright 2015 Futurewei. 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 networking_sfc.services.sfc.drivers.ovs import rpc_topics as sfc_topics
from neutron.common import rpc as n_rpc
from neutron.common import topics
from neutron.i18n import _LI
from oslo_log import log as logging
import oslo_messaging
LOG = logging.getLogger(__name__)
class SfcRpcCallback(object):
"""Sfc RPC server."""
def __init__(self, driver):
self.target = oslo_messaging.Target(version='1.0')
self.driver = driver
def get_flowrules_by_host_portid(self, context, **kwargs):
host = kwargs.get('host')
port_id = kwargs.get('port_id')
LOG.debug('from port-chain service plugin')
pcfrs = self.driver.get_flowrules_by_host_portid(
context, host, port_id)
LOG.debug('host: %s, port_id: %s', host, port_id)
return pcfrs
def get_flow_classifier_by_portchain_id(self, context, **kwargs):
portchain_id = kwargs.get('portchain_id')
pcfcs = self.driver.get_flow_classifier_by_portchain_id(
context,
portchain_id)
LOG.debug('portchain id: %s', portchain_id)
return pcfcs
def get_all_src_node_flowrules(self, context, **kwargs):
host = kwargs.get('host')
pcfcs = self.driver.get_all_src_node_flowrules(
context)
LOG.debug('portchain get_src_node_flowrules, host: %s', host)
return pcfcs
def update_flowrules_status(self, context, **kwargs):
flowrules_status = kwargs.get('flowrules_status')
LOG.info(_LI('update_flowrules_status: %s'), flowrules_status)
for flowrule_dict in flowrules_status:
self.driver.update_flowrule_status(
context, flowrule_dict['id'], flowrule_dict['status'])
class SfcAgentRpcClient(object):
"""RPC client for ovs sfc agent."""
def __init__(self, topic=sfc_topics.SFC_AGENT):
self.topic = topic
target = oslo_messaging.Target(topic=topic, version='1.0')
self.client = n_rpc.get_client(target)
def ask_agent_to_update_flow_rules(self, context, flows):
LOG.debug('Ask agent on the specific host to update flows ')
LOG.debug('flows: %s', flows)
host = flows.get('host')
cctxt = self.client.prepare(
topic=topics.get_topic_name(
self.topic, sfc_topics.PORTFLOW, topics.UPDATE),
server=host)
cctxt.cast(context, 'update_flow_rules', flowrule_entries=flows)
def ask_agent_to_delete_flow_rules(self, context, flows):
LOG.debug('Ask agent on the specific host to delete flows ')
LOG.debug('flows: %s', flows)
host = flows.get('host')
cctxt = self.client.prepare(
topic=topics.get_topic_name(
self.topic, sfc_topics.PORTFLOW, topics.DELETE),
server=host)
cctxt.cast(context, 'delete_flow_rules', flowrule_entries=flows)
def ask_agent_to_update_src_node_flow_rules(self, context, flows):
LOG.debug('Ask agent on the specific host to update src node flows ')
LOG.debug('flows: %s', flows)
host = flows.get('host')
cctxt = self.client.prepare(
topic=topics.get_topic_name(
self.topic, sfc_topics.PORTFLOW, topics.UPDATE),
server=host)
cctxt.cast(context, 'update_src_node_flow_rules',
flowrule_entries=flows)
def ask_agent_to_delete_src_node_flow_rules(self, context, flows):
LOG.debug('Ask agent on the specific host to delete src node flows')
LOG.debug('flows: %s', flows)
host = flows.get('host')
cctxt = self.client.prepare(
topic=topics.get_topic_name(
self.topic, sfc_topics.PORTFLOW, topics.DELETE),
server=host)
cctxt.cast(context, 'delete_src_node_flow_rules',
flowrule_entries=flows)
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