def flow_stats_entry_from_flow_mod_message(mod):
flow = ofp.ofp_flow_stats(table_id=mod.table_id,
priority=mod.priority,
idle_timeout=mod.idle_timeout,
hard_timeout=mod.hard_timeout,
flags=mod.flags,
cookie=mod.cookie,
match=mod.match,
instructions=mod.instructions)
flow.id = hash_flow_stats(flow)
return flow
def flow_stats_entry_from_flow_mod_message(mod):
flow = ofp.ofp_flow_stats(
table_id=mod.table_id,
priority=mod.priority,
idle_timeout=mod.idle_timeout,
hard_timeout=mod.hard_timeout,
flags=mod.flags,
cookie=mod.cookie,
match=mod.match,
instructions=mod.instructions
)
flow.id = hash_flow_stats(flow)
return flow
def add_eapol_flow(self, intf_id, onu_id, logical_flow,
eapol_id=EAPOL_FLOW_INDEX,
vlan_id=DEFAULT_MGMT_VLAN):
uplink_classifier = {}
uplink_classifier[ETH_TYPE] = EAP_ETH_TYPE
uplink_classifier[PACKET_TAG_TYPE] = SINGLE_TAG
uplink_classifier[VLAN_VID] = vlan_id
uplink_action = {}
uplink_action[TRAP_TO_HOST] = True
# Add Upstream EAPOL Flow.
pon_intf_onu_id = (intf_id, onu_id)
gemport_id = self.resource_mgr.get_gemport_id(
pon_intf_onu_id=pon_intf_onu_id
)
alloc_id = self.resource_mgr.get_alloc_id(
pon_intf_onu_id=pon_intf_onu_id
)
uplink_flow_id = self.platform.mk_flow_id(intf_id, onu_id, eapol_id)
upstream_flow = openolt_pb2.Flow(
onu_id=onu_id, flow_id=uplink_flow_id, flow_type=UPSTREAM,
access_intf_id=intf_id, gemport_id=gemport_id,
alloc_id=alloc_id,
priority=logical_flow.priority,
classifier=self.mk_classifier(uplink_classifier),
action=self.mk_action(uplink_action))
logical_flow = copy.deepcopy(logical_flow)
logical_flow.match.oxm_fields.extend(fd.mk_oxm_fields([fd.vlan_vid(
vlan_id | 0x1000)]))
logical_flow.match.type = OFPMT_OXM
self.add_flow_to_device(upstream_flow, logical_flow)
if vlan_id == DEFAULT_MGMT_VLAN:
# Add Downstream EAPOL Flow, Only for first EAP flow (BAL
# requirement)
special_vlan_downstream_flow = 4000 - onu_id
downlink_classifier = {}
downlink_classifier[PACKET_TAG_TYPE] = SINGLE_TAG
downlink_classifier[VLAN_VID] = special_vlan_downstream_flow
downlink_action = {}
downlink_action[PUSH_VLAN] = True
downlink_action[VLAN_VID] = vlan_id
downlink_flow_id = self.platform.mk_flow_id(
intf_id, onu_id, DOWNSTREAM_FLOW_FOR_PACKET_OUT)
downstream_flow = openolt_pb2.Flow(
onu_id=onu_id, flow_id=downlink_flow_id, flow_type=DOWNSTREAM,
access_intf_id=intf_id, gemport_id=gemport_id,
priority=logical_flow.priority,
classifier=self.mk_classifier(downlink_classifier),
action=self.mk_action(downlink_action))
downstream_logical_flow = ofp_flow_stats(
id=logical_flow.id, cookie=logical_flow.cookie,
table_id=logical_flow.table_id, priority=logical_flow.priority,
flags=logical_flow.flags)
downstream_logical_flow.match.oxm_fields.extend(fd.mk_oxm_fields([
fd.in_port(fd.get_out_port(logical_flow)),
fd.vlan_vid((special_vlan_downstream_flow) | 0x1000)]))
downstream_logical_flow.match.type = OFPMT_OXM
downstream_logical_flow.instructions.extend(
fd.mk_instructions_from_actions([fd.output(
self.platform.mk_uni_port_num(intf_id, onu_id))]))
self.add_flow_to_device(downstream_flow, downstream_logical_flow)
def add_eapol_flow(self, intf_id, onu_id, uni_id, port_no, logical_flow,
alloc_id, gemport_id, vlan_id=DEFAULT_MGMT_VLAN):
uplink_classifier = dict()
uplink_classifier[ETH_TYPE] = EAP_ETH_TYPE
uplink_classifier[PACKET_TAG_TYPE] = SINGLE_TAG
uplink_classifier[VLAN_VID] = vlan_id
uplink_action = dict()
uplink_action[TRAP_TO_HOST] = True
flow_store_cookie = self._get_flow_store_cookie(uplink_classifier,
gemport_id)
if self.resource_mgr.is_flow_cookie_on_kv_store(intf_id, onu_id,
uni_id,
flow_store_cookie):
self.log.debug('flow-exists--not-re-adding')
else:
# Add Upstream EAPOL Flow.
uplink_flow_id = self.resource_mgr.get_flow_id(
intf_id, onu_id, uni_id, flow_store_cookie
)
upstream_flow = openolt_pb2.Flow(
access_intf_id=intf_id, onu_id=onu_id, uni_id=uni_id,
flow_id=uplink_flow_id, flow_type=UPSTREAM, alloc_id=alloc_id,
network_intf_id=self.data_model.olt_nni_intf_id(),
gemport_id=gemport_id,
classifier=self.mk_classifier(uplink_classifier),
action=self.mk_action(uplink_action),
priority=logical_flow.priority,
port_no=port_no,
cookie=logical_flow.cookie)
logical_flow = copy.deepcopy(logical_flow)
logical_flow.match.oxm_fields.extend(fd.mk_oxm_fields([fd.vlan_vid(
vlan_id | 0x1000)]))
logical_flow.match.type = OFPMT_OXM
if self.add_flow_to_device(upstream_flow, logical_flow):
flow_info = self._get_flow_info_as_json_blob(upstream_flow,
flow_store_cookie)
self.update_flow_info_to_kv_store(upstream_flow.access_intf_id,
upstream_flow.onu_id,
upstream_flow.uni_id,
upstream_flow.flow_id,
flow_info)
if vlan_id == DEFAULT_MGMT_VLAN:
# Add Downstream EAPOL Flow, Only for first EAP flow (BAL
# requirement)
# On one of the platforms (Broadcom BAL), when same DL classifier
# vlan was used across multiple ONUs, eapol flow re-adds after
# flow delete (cases of onu reboot/disable) fails.
# In order to generate unique vlan, a combination of intf_id
# onu_id and uni_id is used.
# uni_id defaults to 0, so add 1 to it.
special_vlan_downstream_flow = 4090 - intf_id * onu_id * (uni_id+1)
# Assert that we do not generate invalid vlans under no condition
assert special_vlan_downstream_flow >= 2
downlink_classifier = dict()
downlink_classifier[PACKET_TAG_TYPE] = SINGLE_TAG
downlink_classifier[VLAN_VID] = special_vlan_downstream_flow
downlink_action = dict()
downlink_action[PUSH_VLAN] = True
downlink_action[VLAN_VID] = vlan_id
flow_store_cookie = self._get_flow_store_cookie(
downlink_classifier, gemport_id)
if self.resource_mgr.is_flow_cookie_on_kv_store(
intf_id, onu_id, uni_id, flow_store_cookie):
self.log.debug('flow-exists--not-re-adding')
else:
downlink_flow_id = self.resource_mgr.get_flow_id(
intf_id, onu_id, uni_id, flow_store_cookie
)
downstream_flow = openolt_pb2.Flow(
access_intf_id=intf_id, onu_id=onu_id, uni_id=uni_id,
flow_id=downlink_flow_id, flow_type=DOWNSTREAM,
alloc_id=alloc_id,
network_intf_id=self.data_model.olt_nni_intf_id(),
gemport_id=gemport_id,
classifier=self.mk_classifier(downlink_classifier),
action=self.mk_action(downlink_action),
priority=logical_flow.priority,
port_no=port_no,
cookie=logical_flow.cookie)
downstream_logical_flow = ofp_flow_stats(
id=logical_flow.id, cookie=logical_flow.cookie,
table_id=logical_flow.table_id,
priority=logical_flow.priority, flags=logical_flow.flags)
downstream_logical_flow.match.oxm_fields.extend(
fd.mk_oxm_fields(
[fd.in_port(fd.get_out_port(logical_flow)),
fd.vlan_vid(special_vlan_downstream_flow | 0x1000)]))
downstream_logical_flow.match.type = OFPMT_OXM
downstream_logical_flow.instructions.extend(
fd.mk_instructions_from_actions([fd.output(
self.platform.mk_uni_port_num(intf_id, onu_id,
uni_id))]))
if self.add_flow_to_device(downstream_flow,
downstream_logical_flow):
flow_info = self._get_flow_info_as_json_blob(
downstream_flow, flow_store_cookie)
self.update_flow_info_to_kv_store(
downstream_flow.access_intf_id, downstream_flow.onu_id,
downstream_flow.uni_id, downstream_flow.flow_id,
flow_info)
def add_eapol_flow(self, intf_id, onu_id, logical_flow,
uplink_eapol_id=EAPOL_FLOW_INDEX,
downlink_eapol_id=EAPOL_DOWNLINK_FLOW_INDEX,
vlan_id=DEFAULT_MGMT_VLAN):
uplink_classifier = {}
uplink_classifier['eth_type'] = EAP_ETH_TYPE
uplink_classifier['pkt_tag_type'] = 'single_tag'
uplink_classifier['vlan_vid'] = vlan_id
uplink_action = {}
uplink_action['trap_to_host'] = True
gemport_id = self.platform.mk_gemport_id(intf_id, onu_id)
# Add Upstream EAPOL Flow.
uplink_flow_id = self.platform.mk_flow_id(intf_id, onu_id, uplink_eapol_id)
upstream_flow = openolt_pb2.Flow(
onu_id=onu_id, flow_id=uplink_flow_id, flow_type="upstream",
access_intf_id=intf_id, gemport_id=gemport_id,
priority=logical_flow.priority,
classifier=self.mk_classifier(uplink_classifier),
action=self.mk_action(uplink_action))
logical_flow = copy.deepcopy(logical_flow)
logical_flow.match.oxm_fields.extend(fd.mk_oxm_fields([fd.vlan_vid(
vlan_id | 0x1000)]))
logical_flow.match.type = OFPMT_OXM
self.add_flow_to_device(upstream_flow, logical_flow)
if vlan_id == DEFAULT_MGMT_VLAN:
# Add Downstream EAPOL Flow, Only for first EAP flow
downlink_classifier = {}
downlink_classifier['pkt_tag_type'] = 'single_tag'
downlink_classifier['vlan_vid'] = 4000 - onu_id
downlink_action = {}
downlink_action['push_vlan'] = True
downlink_action['vlan_vid'] = vlan_id
downlink_flow_id = self.platform.mk_flow_id(intf_id, onu_id,
downlink_eapol_id)
downstream_flow = openolt_pb2.Flow(
onu_id=onu_id, flow_id=downlink_flow_id, flow_type="downstream",
access_intf_id=intf_id, gemport_id=gemport_id,
priority=logical_flow.priority,
classifier=self.mk_classifier(downlink_classifier),
action=self.mk_action(downlink_action))
downstream_logical_flow = ofp_flow_stats(id=logical_flow.id,
cookie=logical_flow.cookie, table_id=logical_flow.table_id,
priority=logical_flow.priority, flags=logical_flow.flags)
downstream_logical_flow.match.oxm_fields.extend(fd.mk_oxm_fields([
fd.in_port(fd.get_out_port(logical_flow)),
fd.vlan_vid((4000 - onu_id) | 0x1000)]))
downstream_logical_flow.match.type = OFPMT_OXM
downstream_logical_flow.instructions.extend(
fd.mk_instructions_from_actions([fd.output(
self.platform.mk_uni_port_num(intf_id, onu_id))]))
self.add_flow_to_device(downstream_flow, downstream_logical_flow)
def add_eapol_flow(self,
intf_id,
onu_id,
logical_flow,
alloc_id,
gemport_id,
eapol_flow_category=EAPOL_PRIMARY_FLOW,
vlan_id=DEFAULT_MGMT_VLAN):
uplink_classifier = dict()
uplink_classifier[ETH_TYPE] = EAP_ETH_TYPE
uplink_classifier[PACKET_TAG_TYPE] = SINGLE_TAG
uplink_classifier[VLAN_VID] = vlan_id
uplink_action = dict()
uplink_action[TRAP_TO_HOST] = True
pon_intf_onu_id = (intf_id, onu_id)
# Add Upstream EAPOL Flow.
if eapol_flow_category == EAPOL_PRIMARY_FLOW:
uplink_flow_id = self.resource_mgr.get_flow_id(pon_intf_onu_id)
else:
uplink_flow_id = self.resource_mgr.get_flow_id(pon_intf_onu_id)
upstream_flow = openolt_pb2.Flow(
access_intf_id=intf_id,
onu_id=onu_id,
flow_id=uplink_flow_id,
flow_type=UPSTREAM,
alloc_id=alloc_id,
network_intf_id=0,
gemport_id=gemport_id,
classifier=self.mk_classifier(uplink_classifier),
action=self.mk_action(uplink_action),
priority=logical_flow.priority)
logical_flow = copy.deepcopy(logical_flow)
logical_flow.match.oxm_fields.extend(
fd.mk_oxm_fields([fd.vlan_vid(vlan_id | 0x1000)]))
logical_flow.match.type = OFPMT_OXM
if self.add_flow_to_device(upstream_flow, logical_flow):
if eapol_flow_category == EAPOL_PRIMARY_FLOW:
flow_info = self._get_flow_info_as_json_blob(
upstream_flow, EAPOL_PRIMARY_FLOW)
self.update_flow_info_to_kv_store(upstream_flow.access_intf_id,
upstream_flow.onu_id,
upstream_flow.flow_id,
flow_info)
else:
flow_info = self._get_flow_info_as_json_blob(
upstream_flow, EAPOL_SECONDARY_FLOW)
self.update_flow_info_to_kv_store(upstream_flow.access_intf_id,
upstream_flow.onu_id,
upstream_flow.flow_id,
flow_info)
if vlan_id == DEFAULT_MGMT_VLAN:
# Add Downstream EAPOL Flow, Only for first EAP flow (BAL
# requirement)
special_vlan_downstream_flow = 4000 - onu_id
downlink_classifier = dict()
downlink_classifier[PACKET_TAG_TYPE] = SINGLE_TAG
downlink_classifier[VLAN_VID] = special_vlan_downstream_flow
downlink_action = dict()
downlink_action[PUSH_VLAN] = True
downlink_action[VLAN_VID] = vlan_id
pon_intf_onu_id = (intf_id, onu_id)
downlink_flow_id = self.resource_mgr.get_flow_id(pon_intf_onu_id)
downstream_flow = openolt_pb2.Flow(
access_intf_id=intf_id,
onu_id=onu_id,
flow_id=downlink_flow_id,
flow_type=DOWNSTREAM,
alloc_id=alloc_id,
network_intf_id=0,
gemport_id=gemport_id,
classifier=self.mk_classifier(downlink_classifier),
action=self.mk_action(downlink_action),
priority=logical_flow.priority)
downstream_logical_flow = ofp_flow_stats(
id=logical_flow.id,
cookie=logical_flow.cookie,
table_id=logical_flow.table_id,
priority=logical_flow.priority,
flags=logical_flow.flags)
downstream_logical_flow.match.oxm_fields.extend(
fd.mk_oxm_fields([
fd.in_port(fd.get_out_port(logical_flow)),
fd.vlan_vid(special_vlan_downstream_flow | 0x1000)
]))
downstream_logical_flow.match.type = OFPMT_OXM
downstream_logical_flow.instructions.extend(
fd.mk_instructions_from_actions([
fd.output(self.platform.mk_uni_port_num(intf_id, onu_id))
]))
if self.add_flow_to_device(downstream_flow,
downstream_logical_flow):
flow_info = self._get_flow_info_as_json_blob(
downstream_flow, EAPOL_PRIMARY_FLOW)
self.update_flow_info_to_kv_store(
downstream_flow.access_intf_id, downstream_flow.onu_id,
downstream_flow.flow_id, flow_info)