| # |
| # Copyright 2019 the original author or authors. |
| # |
| # 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. |
| # |
| |
| import threading |
| from google.protobuf.json_format import Parse |
| from simplejson import loads |
| from twisted.internet import reactor |
| import structlog |
| from scapy.layers.l2 import Ether, Packet |
| from common.frameio.frameio import hexify |
| |
| from voltha.adapters.openolt.protos import openolt_pb2 |
| from voltha.adapters.openolt.openolt_kafka_consumer import KConsumer |
| |
| |
| class OpenoltIndications(object): |
| def __init__(self, device): |
| self.log = structlog.get_logger() |
| self.device = device |
| self.indications_thread_handle = threading.Thread( |
| target=self.indications_thread) |
| self.indications_thread_handle.setDaemon(True) |
| |
| def start(self): |
| self.indications_thread_handle.start() |
| |
| def stop(self): |
| pass |
| |
| def indications_thread(self): |
| self.log.debug('openolt indications thread starting') |
| |
| KConsumer(self.indications_process, |
| 'openolt.ind-{}'.format( |
| self.device.host_and_port.split(':')[0])) |
| |
| def indications_process(self, topic, msg): |
| |
| ind = Parse(loads(msg), openolt_pb2.Indication(), |
| ignore_unknown_fields=True) |
| |
| self.log.debug("received openolt indication", ind=ind) |
| |
| if self.device.admin_state is "down": |
| if ind.HasField('intf_oper_ind') \ |
| and (ind.intf_oper_ind.type == "nni"): |
| self.log.warn('olt is admin down, allow nni ind', |
| admin_state=self.device.admin_state, |
| indications=ind) |
| else: |
| self.log.warn('olt is admin down, ignore indication', |
| admin_state=self.device.admin_state, |
| indications=ind) |
| return |
| |
| # indication handlers run in the main event loop |
| if ind.HasField('olt_ind'): |
| reactor.callFromThread(self.device.olt_indication, ind.olt_ind) |
| elif ind.HasField('intf_ind'): |
| reactor.callFromThread(self.device.intf_indication, ind.intf_ind) |
| elif ind.HasField('intf_oper_ind'): |
| reactor.callFromThread(self.device.intf_oper_indication, |
| ind.intf_oper_ind) |
| elif ind.HasField('onu_disc_ind'): |
| reactor.callFromThread(self.device.onu_discovery_indication, |
| ind.onu_disc_ind) |
| elif ind.HasField('onu_ind'): |
| reactor.callFromThread(self.device.onu_indication, ind.onu_ind) |
| elif ind.HasField('omci_ind'): |
| reactor.callFromThread(self.device.omci_indication, ind.omci_ind) |
| elif ind.HasField('pkt_ind'): |
| self.send_packet_in(ind.pkt_ind) |
| elif ind.HasField('port_stats'): |
| reactor.callFromThread( |
| self.device.stats_mgr.port_statistics_indication, |
| ind.port_stats) |
| elif ind.HasField('flow_stats'): |
| reactor.callFromThread( |
| self.device.stats_mgr.flow_statistics_indication, |
| ind.flow_stats) |
| elif ind.HasField('alarm_ind'): |
| reactor.callFromThread( |
| self.device.alarm_mgr.process_alarms, ind.alarm_ind) |
| else: |
| self.log.warn('unknown indication type') |
| |
| def send_packet_in(self, pkt_indication): |
| self.log.debug("packet indication", |
| intf_type=pkt_indication.intf_type, |
| intf_id=pkt_indication.intf_id, |
| port_no=pkt_indication.port_no, |
| cookie=pkt_indication.cookie, |
| gemport_id=pkt_indication.gemport_id, |
| flow_id=pkt_indication.flow_id) |
| try: |
| logical_port_num = self.device.data_model.logical_port_num( |
| pkt_indication.intf_type, |
| pkt_indication.intf_id, |
| pkt_indication.port_no, |
| pkt_indication.gemport_id) |
| except ValueError: |
| self.log.error('No logical port found', |
| intf_type=pkt_indication.intf_type, |
| intf_id=pkt_indication.intf_id, |
| port_no=pkt_indication.port_no, |
| gemport_id=pkt_indication.gemport_id) |
| return |
| |
| ether_pkt = Ether(pkt_indication.pkt) |
| |
| if isinstance(ether_pkt, Packet): |
| ether_pkt = str(ether_pkt) |
| |
| logical_device_id = self.device.data_model.logical_device_id |
| topic = 'packet-in:' + logical_device_id |
| |
| self.log.debug('send-packet-in', logical_device_id=logical_device_id, |
| logical_port_num=logical_port_num, |
| packet=hexify(ether_pkt)) |
| |
| self.device.data_model.adapter_agent.event_bus.publish( |
| topic, (logical_port_num, str(ether_pkt))) |