def send_proxied_message(self, proxy_address, msg):
self.log.debug('sending-proxied-message')
if isinstance(msg, FlowTable):
stub = ponsim_pb2.PonSimStub(self.get_channel())
self.log.info('pushing-onu-flow-table', port=msg.port)
res = stub.UpdateFlowTable(msg)
self.adapter_agent.receive_proxied_message(proxy_address, res)
elif isinstance(msg, PonSimMetricsRequest):
stub = ponsim_pb2.PonSimStub(self.get_channel())
self.log.debug('proxying onu stats request', port=msg.port)
res = stub.GetStats(msg)
self.adapter_agent.receive_proxied_message(proxy_address, res)
def collect_port_metrics(self, channel):
rtrn_port_metrics = dict()
stub = ponsim_pb2.PonSimStub(channel)
stats = stub.GetStats(Empty())
rtrn_port_metrics['pon'] = self.extract_pon_metrics(stats)
rtrn_port_metrics['nni'] = self.extract_nni_metrics(stats)
return rtrn_port_metrics
def reconcile(self, device):
self.log.info('reconciling-OLT-device-starts')
if not device.host_and_port:
device.oper_status = OperStatus.FAILED
device.reason = 'No host_and_port field provided'
self.adapter_agent.update_device(device)
return
try:
stub = ponsim_pb2.PonSimStub(self.get_channel())
info = stub.GetDeviceInfo(Empty())
log.info('got-info', info=info)
# TODO: Verify we are connected to the same device we are
# reconciling - not much data in ponsim to differentiate at the
# time
device.oper_status = OperStatus.ACTIVE
self.adapter_agent.update_device(device)
self.ofp_port_no = info.nni_port
self.nni_port = self._get_nni_port()
except Exception, e:
log.exception('device-unreachable', e=e)
device.connect_status = ConnectStatus.UNREACHABLE
device.oper_status = OperStatus.UNKNOWN
self.adapter_agent.update_device(device)
return
def update_flow_table(self, flows):
stub = ponsim_pb2.PonSimStub(self.get_channel())
self.log.info('pushing-olt-flow-table')
for flow in flows:
classifier_info = {}
for field in fd.get_ofb_fields(flow):
if field.type == fd.ETH_TYPE:
classifier_info['eth_type'] = field.eth_type
self.log.debug('field-type-eth-type',
eth_type=classifier_info['eth_type'])
elif field.type == fd.IP_PROTO:
classifier_info['ip_proto'] = field.ip_proto
self.log.debug('field-type-ip-proto',
ip_proto=classifier_info['ip_proto'])
if ('ip_proto' in classifier_info and
(classifier_info['ip_proto'] == 17
or classifier_info['ip_proto'] == 2)) or (
'eth_type' in classifier_info
and classifier_info['eth_type'] == 0x888e):
for action in fd.get_actions(flow):
if action.type == ofp.OFPAT_OUTPUT:
action.output.port = ofp.OFPP_CONTROLLER
self.log.info('out_port', out_port=fd.get_out_port(flow))
stub.UpdateFlowTable(FlowTable(port=0, flows=flows))
self.log.info('success')
def update_flow_table(self, flows):
stub = ponsim_pb2.PonSimStub(self.get_channel())
self.log.info('pushing-olt-flow-table')
stub.UpdateFlowTable(FlowTable(
port=0,
flows=flows
))
self.log.info('success')
def packet_out(self, egress_port, msg):
self.log.info('sending-packet-out',
egress_port=egress_port,
msg=hexify(msg))
pkt = Ether(msg)
out_pkt = (Ether(src=pkt.src, dst=pkt.dst) / Dot1Q(vlan=4000) /
Dot1Q(vlan=egress_port, type=pkt.type) / pkt.payload)
if self.ponsim_comm == 'grpc':
# send over grpc stream
stub = ponsim_pb2.PonSimStub(self.get_channel())
frame = PonSimFrame(id=self.device_id, payload=str(out_pkt))
stub.SendFrame(frame)
else:
# send over frameio
self.io_port.send(str(out_pkt))
def rcv_grpc(self):
"""
This call establishes a GRPC stream to receive frames.
"""
stub = ponsim_pb2.PonSimStub(self.get_channel())
# Attempt to establish a grpc stream with the remote ponsim service
self.frames = stub.ReceiveFrames(Empty())
self.log.info('start-receiving-grpc-frames')
try:
for frame in self.frames:
self.log.info('received-grpc-frame',
frame_len=len(frame.payload))
self._rcv_frame(frame.payload)
except _Rendezvous, e:
log.warn('grpc-connection-lost', message=e.message)
def packet_out(self, egress_port, msg):
self.log.debug('sending-packet-out',
egress_port=egress_port,
msg_hex=hexify(msg))
pkt = Ether(msg)
out_pkt = pkt
if egress_port != self.nni_port.port_no:
# don't do the vlan manipulation for the NNI port, vlans are already correct
out_pkt = (Ether(src=pkt.src, dst=pkt.dst) /
Dot1Q(vlan=egress_port, type=pkt.type) / pkt.payload)
# TODO need better way of mapping logical ports to PON ports
out_port = self.nni_port.port_no if egress_port == self.nni_port.port_no else 1
if self.ponsim_comm == 'grpc':
# send over grpc stream
stub = ponsim_pb2.PonSimStub(self.get_channel())
frame = PonSimFrame(id=self.device_id,
payload=str(out_pkt),
out_port=out_port)
stub.SendFrame(frame)
else:
# send over frameio
self.io_port.send(str(out_pkt))
def activate(self, device):
self.log.info('activating')
if not device.host_and_port:
device.oper_status = OperStatus.FAILED
device.reason = 'No host_and_port field provided'
self.adapter_agent.update_device(device)
return
stub = ponsim_pb2.PonSimStub(self.get_channel())
info = stub.GetDeviceInfo(Empty())
log.info('got-info', info=info)
device.root = True
device.vendor = 'ponsim'
device.model = 'n/a'
device.serial_number = device.host_and_port
device.connect_status = ConnectStatus.REACHABLE
self.adapter_agent.update_device(device)
# Now set the initial PM configuration for this device
self.pm_metrics = AdapterPmMetrics(device)
pm_config = self.pm_metrics.make_proto()
log.info("initial-pm-config", pm_config=pm_config)
self.adapter_agent.update_device_pm_config(pm_config, init=True)
# Setup alarm handler
self.alarms = AdapterAlarms(self.adapter, device)
nni_port = Port(
port_no=2,
label='NNI facing Ethernet port',
type=Port.ETHERNET_NNI,
admin_state=AdminState.ENABLED,
oper_status=OperStatus.ACTIVE
)
self.nni_port = nni_port
self.adapter_agent.add_port(device.id, nni_port)
self.adapter_agent.add_port(device.id, Port(
port_no=1,
label='PON port',
type=Port.PON_OLT,
admin_state=AdminState.ENABLED,
oper_status=OperStatus.ACTIVE
))
ld = LogicalDevice(
# not setting id and datapth_id will let the adapter agent pick id
desc=ofp_desc(
mfr_desc='cord porject',
hw_desc='simualted pon',
sw_desc='simualted pon',
serial_num=uuid4().hex,
dp_desc='n/a'
),
switch_features=ofp_switch_features(
n_buffers=256, # TODO fake for now
n_tables=2, # TODO ditto
capabilities=( # TODO and ditto
OFPC_FLOW_STATS
| OFPC_TABLE_STATS
| OFPC_PORT_STATS
| OFPC_GROUP_STATS
)
),
root_device_id=device.id
)
ld_initialized = self.adapter_agent.create_logical_device(ld)
cap = OFPPF_1GB_FD | OFPPF_FIBER
self.ofp_port_no = info.nni_port
self.adapter_agent.add_logical_port(ld_initialized.id, LogicalPort(
id='nni',
ofp_port=ofp_port(
port_no=info.nni_port,
hw_addr=mac_str_to_tuple(
'00:00:00:00:00:%02x' % info.nni_port),
name='nni',
config=0,
state=OFPPS_LIVE,
curr=cap,
advertised=cap,
peer=cap,
curr_speed=OFPPF_1GB_FD,
max_speed=OFPPF_1GB_FD
),
device_id=device.id,
device_port_no=nni_port.port_no,
root_port=True
))
device = self.adapter_agent.get_device(device.id)
device.parent_id = ld_initialized.id
device.oper_status = OperStatus.ACTIVE
self.adapter_agent.update_device(device)
self.logical_device_id = ld_initialized.id
# register ONUS per uni port
for port_no in info.uni_ports:
vlan_id = port_no
self.adapter_agent.child_device_detected(
parent_device_id=device.id,
parent_port_no=1,
child_device_type='ponsim_onu',
proxy_address=Device.ProxyAddress(
device_id=device.id,
channel_id=vlan_id
),
vlan=vlan_id
)
# finally, open the frameio port to receive in-band packet_in messages
self.log.info('registering-frameio')
self.io_port = registry('frameio').open_port(
self.interface, self.rcv_io, is_inband_frame)
self.log.info('registered-frameio')
# Start collecting stats from the device after a brief pause
self.start_kpi_collection(device.id)
def reenable(self):
self.log.info('re-enabling', device_id=self.device_id)
# Get the latest device reference
device = self.adapter_agent.get_device(self.device_id)
# Set the ofp_port_no and nni_port in case we bypassed the reconcile
# process if the device was in DISABLED state on voltha restart
if not self.ofp_port_no and not self.nni_port:
stub = ponsim_pb2.PonSimStub(self.get_channel())
info = stub.GetDeviceInfo(Empty())
log.info('got-info', info=info)
self.ofp_port_no = info.nni_port
self.nni_port = self._get_nni_port()
# Update the connect status to REACHABLE
device.connect_status = ConnectStatus.REACHABLE
self.adapter_agent.update_device(device)
# Set all ports to enabled
self.adapter_agent.enable_all_ports(self.device_id)
ld = LogicalDevice(
# not setting id and datapth_id will let the adapter agent pick id
desc=ofp_desc(mfr_desc='cord porject',
hw_desc='simulated pon',
sw_desc='simulated pon',
serial_num=uuid4().hex,
dp_desc='n/a'),
switch_features=ofp_switch_features(
n_buffers=256, # TODO fake for now
n_tables=2, # TODO ditto
capabilities=( # TODO and ditto
OFPC_FLOW_STATS
| OFPC_TABLE_STATS
| OFPC_PORT_STATS
| OFPC_GROUP_STATS)),
root_device_id=device.id)
mac_address = "AA:BB:CC:DD:EE:FF"
ld_initialized = self.adapter_agent.create_logical_device(
ld, dpid=mac_address)
cap = OFPPF_1GB_FD | OFPPF_FIBER
self.adapter_agent.add_logical_port(
ld_initialized.id,
LogicalPort(id='nni',
ofp_port=ofp_port(
port_no=self.ofp_port_no,
hw_addr=mac_str_to_tuple('00:00:00:00:00:%02x' %
self.ofp_port_no),
name='nni',
config=0,
state=OFPPS_LIVE,
curr=cap,
advertised=cap,
peer=cap,
curr_speed=OFPPF_1GB_FD,
max_speed=OFPPF_1GB_FD),
device_id=device.id,
device_port_no=self.nni_port.port_no,
root_port=True))
device = self.adapter_agent.get_device(device.id)
device.parent_id = ld_initialized.id
device.oper_status = OperStatus.ACTIVE
self.adapter_agent.update_device(device)
self.logical_device_id = ld_initialized.id
# Reenable all child devices
self.adapter_agent.update_child_devices_state(
device.id, admin_state=AdminState.ENABLED)
# finally, open the frameio port to receive in-band packet_in messages
self.io_port = registry('frameio').open_port(self.interface,
self.rcv_io,
is_inband_frame)
self.log.info('re-enabled', device_id=device.id)