blob: abe1bbc5e31976faaf584a2408443ac32f9f38f8 [file] [log] [blame]
#
# Copyright 2018 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.
#
"""
Adapter abstract base class
"""
import structlog
from twisted.internet import reactor
from zope.interface import implementer
from interface import IAdapterInterface
from python.protos.adapter_pb2 import Adapter
from python.protos.adapter_pb2 import AdapterConfig
from python.protos.common_pb2 import AdminState
from python.protos.common_pb2 import LogLevel
from python.protos.device_pb2 import DeviceType, DeviceTypes
from python.protos.health_pb2 import HealthStatus
log = structlog.get_logger()
@implementer(IAdapterInterface)
class IAdapter(object):
def __init__(self,
core_proxy,
adapter_proxy,
config,
device_handler_class,
name,
vendor,
version,
device_type, vendor_id,
accepts_bulk_flow_update=True,
accepts_add_remove_flow_updates=False):
log.debug(
'Initializing adapter: {} {} {}'.format(vendor, name, version))
self.core_proxy = core_proxy
self.adapter_proxy = adapter_proxy
self.config = config
self.name = name
self.supported_device_types = [
DeviceType(
id=device_type,
vendor_id=vendor_id,
adapter=name,
accepts_bulk_flow_update=accepts_bulk_flow_update,
accepts_add_remove_flow_updates=accepts_add_remove_flow_updates
)
]
self.descriptor = Adapter(
id=self.name,
vendor=vendor,
version=version,
config=AdapterConfig(log_level=LogLevel.INFO)
)
self.devices_handlers = dict() # device_id -> Olt/OnuHandler()
self.device_handler_class = device_handler_class
def start(self):
log.info('Starting adapter: {}'.format(self.name))
def stop(self):
log.info('Stopping adapter: {}'.format(self.name))
def adapter_descriptor(self):
return self.descriptor
def device_types(self):
return DeviceTypes(items=self.supported_device_types)
def health(self):
# return HealthStatus(state=HealthStatus.HealthState.HEALTHY)
return HealthStatus(state=HealthStatus.HEALTHY)
def change_master_state(self, master):
raise NotImplementedError()
def get_ofp_device_info(self, device):
log.debug('get_ofp_device_info_start', device_id=device.id)
ofp_device_info = self.devices_handlers[device.id].get_ofp_device_info(
device)
log.debug('get_ofp_device_info_ends', device_id=device.id)
return ofp_device_info
def get_ofp_port_info(self, device, port_no):
log.debug('get_ofp_port_info_start', device_id=device.id,
port_no=port_no)
ofp_port_info = self.devices_handlers[device.id].get_ofp_port_info(
device, port_no)
log.debug('get_ofp_port_info_ends', device_id=device.id,
port_no=port_no)
return ofp_port_info
def adopt_device(self, device):
log.debug('adopt_device', device_id=device.id)
self.devices_handlers[device.id] = self.device_handler_class(self,
device.id)
reactor.callLater(0, self.devices_handlers[device.id].activate, device)
log.debug('adopt_device_done', device_id=device.id)
return device
def reconcile_device(self, device):
raise NotImplementedError()
def abandon_device(self, device):
raise NotImplementedError()
def disable_device(self, device):
log.info('disable-device', device_id=device.id)
reactor.callLater(0, self.devices_handlers[device.id].disable)
log.debug('disable-device-done', device_id=device.id)
return device
def reenable_device(self, device):
log.info('reenable-device', device_id=device.id)
reactor.callLater(0, self.devices_handlers[device.id].reenable)
log.info('reenable-device-done', device_id=device.id)
return device
def reboot_device(self, device):
log.info('reboot-device', device_id=device.id)
reactor.callLater(0, self.devices_handlers[device.id].reboot)
log.info('reboot-device-done', device_id=device.id)
return device
def download_image(self, device, request):
raise NotImplementedError()
def get_image_download_status(self, device, request):
raise NotImplementedError()
def cancel_image_download(self, device, request):
raise NotImplementedError()
def activate_image_update(self, device, request):
raise NotImplementedError()
def revert_image_update(self, device, request):
raise NotImplementedError()
def self_test_device(self, device):
log.info('self-test', device_id=device.id)
result = reactor.callLater(0, self.devices_handlers[
device.id].self_test_device)
log.info('self-test-done', device_id=device.id)
return result
def delete_device(self, device):
log.info('delete-device', device_id=device.id)
reactor.callLater(0, self.devices_handlers[device.id].delete)
log.info('delete-device-done', device_id=device.id)
return device
def get_device_details(self, device):
raise NotImplementedError()
def update_flows_bulk(self, device, flows, groups):
log.info('bulk-flow-update', device_id=device.id,
flows=flows, groups=groups)
assert len(groups.items) == 0
reactor.callLater(0, self.devices_handlers[device.id].update_flow_table,
flows.items)
return device
def update_flows_incrementally(self, device, flow_changes, group_changes):
log.info('incremental-flow-update', device_id=device.id,
flows=flow_changes, groups=group_changes)
# For now, there is no support for group changes
assert len(group_changes.to_add.items) == 0
assert len(group_changes.to_remove.items) == 0
handler = self.devices_handlers[device.id]
# Remove flows
if len(flow_changes.to_remove.items) != 0:
reactor.callLater(0, handler.remove_from_flow_table,
flow_changes.to_remove.items)
# Add flows
if len(flow_changes.to_add.items) != 0:
reactor.callLater(0, handler.add_to_flow_table,
flow_changes.to_add.items)
return device
def update_pm_config(self, device, pm_config):
log.info("adapter-update-pm-config", device=device,
pm_config=pm_config)
handler = self.devices_handlers[device.id]
if handler:
reactor.callLater(0, handler.update_pm_config, device, pm_config)
def process_inter_adapter_message(self, msg):
raise NotImplementedError()
def receive_packet_out(self, device_id, egress_port_no, msg):
raise NotImplementedError()
def suppress_alarm(self, filter):
raise NotImplementedError()
def unsuppress_alarm(self, filter):
raise NotImplementedError()
def _get_handler(self, device):
if device.id in self.devices_handlers:
handler = self.devices_handlers[device.id]
if handler is not None:
return handler
return None
"""
OLT Adapter base class
"""
class OltAdapter(IAdapter):
def __init__(self,
core_proxy,
adapter_proxy,
config,
device_handler_class,
name,
vendor,
version, device_type,
accepts_bulk_flow_update=True,
accepts_add_remove_flow_updates=False):
super(OltAdapter, self).__init__(core_proxy=core_proxy,
adapter_proxy=adapter_proxy,
config=config,
device_handler_class=device_handler_class,
name=name,
vendor=vendor,
version=version,
device_type=device_type,
vendor_id=None,
accepts_bulk_flow_update=accepts_bulk_flow_update,
accepts_add_remove_flow_updates=accepts_add_remove_flow_updates)
self.logical_device_id_to_root_device_id = dict()
def reconcile_device(self, device):
try:
self.devices_handlers[device.id] = self.device_handler_class(self,
device.id)
# Work only required for devices that are in ENABLED state
if device.admin_state == AdminState.ENABLED:
reactor.callLater(0,
self.devices_handlers[device.id].reconcile,
device)
else:
# Invoke the children reconciliation which would setup the
# basic children data structures
self.core_proxy.reconcile_child_devices(device.id)
return device
except Exception, e:
log.exception('Exception', e=e)
def send_proxied_message(self, proxy_address, msg):
log.info('send-proxied-message', proxy_address=proxy_address, msg=msg)
handler = self.devices_handlers[proxy_address.device_id]
handler.send_proxied_message(proxy_address, msg)
def process_inter_adapter_message(self, msg):
log.debug('process-inter-adapter-message', msg=msg)
# Unpack the header to know which device needs to handle this message
handler = None
if msg.header.proxy_device_id:
# typical request
handler = self.devices_handlers[msg.header.proxy_device_id]
elif msg.header.to_device_id and \
msg.header.to_device_id in self.devices_handlers:
# typical response
handler = self.devices_handlers[msg.header.to_device_id]
if handler:
reactor.callLater(0, handler.process_inter_adapter_message, msg)
def receive_packet_out(self, device_id, egress_port_no, msg):
try:
log.info('receive_packet_out', device_id=device_id,
egress_port=egress_port_no, msg=msg)
handler = self.devices_handlers[device_id]
if handler:
reactor.callLater(0, handler.packet_out, egress_port_no, msg.data)
except Exception, e:
log.exception('packet-out-failure', e=e)
"""
ONU Adapter base class
"""
class OnuAdapter(IAdapter):
def __init__(self,
core_proxy,
adapter_proxy,
config,
device_handler_class,
name,
vendor,
version,
device_type,
vendor_id,
accepts_bulk_flow_update=True,
accepts_add_remove_flow_updates=False):
super(OnuAdapter, self).__init__(core_proxy=core_proxy,
adapter_proxy=adapter_proxy,
config=config,
device_handler_class=device_handler_class,
name=name,
vendor=vendor,
version=version,
device_type=device_type,
vendor_id=vendor_id,
accepts_bulk_flow_update=accepts_bulk_flow_update,
accepts_add_remove_flow_updates=accepts_add_remove_flow_updates)
def reconcile_device(self, device):
self.devices_handlers[device.id] = self.device_handler_class(self,
device.id)
# Reconcile only if state was ENABLED
if device.admin_state == AdminState.ENABLED:
reactor.callLater(0,
self.devices_handlers[device.id].reconcile,
device)
return device
def receive_proxied_message(self, proxy_address, msg):
log.info('receive-proxied-message', proxy_address=proxy_address,
device_id=proxy_address.device_id, msg=msg)
# Device_id from the proxy_address is the olt device id. We need to
# get the onu device id using the port number in the proxy_address
device = self.core_proxy. \
get_child_device_with_proxy_address(proxy_address)
if device:
handler = self.devices_handlers[device.id]
handler.receive_message(msg)
def process_inter_adapter_message(self, msg):
log.info('process-inter-adapter-message', msg=msg)
# Unpack the header to know which device needs to handle this message
if msg.header:
handler = self.devices_handlers[msg.header.to_device_id]
handler.process_inter_adapter_message(msg)