def _add_table_miss_flows(dpath, ofctl):
"""
Table miss flows.
"""
tables = [
(pb.FlowMod.INGRESS_PORT, pb.FlowMod.VLAN, []),
(pb.FlowMod.VLAN, pb.FlowMod.POLICY_ACL, [ofaction.clear_actions()]),
(pb.FlowMod.TERM_MAC, pb.FlowMod.BRIDGING, []),
(pb.FlowMod.MPLS0, pb.FlowMod.MPLS1, []),
(pb.FlowMod.MPLS1, -1, [ofaction.clear_actions()]),
(pb.FlowMod.MPLS2, -1, [ofaction.clear_actions()]),
(pb.FlowMod.MPLS_L3_TYPE, -1, [ofaction.clear_actions()]),
(pb.FlowMod.MPLS_LABEL_TRUST, pb.FlowMod.MPLS_TYPE, []),
(pb.FlowMod.MPLS_TYPE, pb.FlowMod.POLICY_ACL, []),
(pb.FlowMod.UNICAST_ROUTING, pb.FlowMod.POLICY_ACL, []),
(pb.FlowMod.MULTICAST_ROUTING, pb.FlowMod.POLICY_ACL, []),
(pb.FlowMod.BRIDGING, pb.FlowMod.POLICY_ACL, []),
(pb.FlowMod.POLICY_ACL, -1, []),
# (pb.FlowMod.POLICY_ACL, -1, [ofaction.output(dpath.ofproto.OFPP_CONTROLLER)]),
]
for talbe_id, goto_table, actions in tables:
if goto_table > 0:
actions.append(ofaction.goto_table(goto_table))
flow = offlow.flow_mod(
match={},
actions=actions,
writes=[],
table_id=talbe_id,
priority=fibcapi.PRIORITY_DEFAULT,
)
ofctl.mod_flow_entry(dpath, flow, dpath.ofproto.OFPFC_ADD)
return
def _add_mpls_l3_type_php_flows(dpath, ofctl):
# L3 VPN Forward (IPv4) based on this label (PHP)
flow = offlow.flow_mod(
match=ofmatch.Match().eth_type(fibcapi.ETHTYPE_MPLS).mpls_type(
fibcapi.MPLSTYPE_PHP, True),
actions=[
ofaction.pop_mpls(fibcapi.ETHTYPE_IPV4),
ofaction.goto_table(pb.FlowMod.MPLS_LABEL_TRUST),
],
writes=[],
table_id=pb.FlowMod.MPLS_L3_TYPE,
priority=5,
)
ofctl.mod_flow_entry(dpath, flow, dpath.ofproto.OFPFC_ADD)
return
def _add_mpls_l3_type_l3vpn_flows(dpath, ofctl):
# L3 VPN Route (IPv4 Unicast)
flow = offlow.flow_mod(
match=ofmatch.Match().eth_type(fibcapi.ETHTYPE_MPLS),
actions=[
ofaction.set_mpls_type(fibcapi.MPLSTYPE_UNICAST, True),
ofaction.pop_mpls(fibcapi.ETHTYPE_IPV4),
ofaction.goto_table(pb.FlowMod.MPLS_LABEL_TRUST),
],
writes=[],
table_id=pb.FlowMod.MPLS_L3_TYPE,
priority=1,
)
ofctl.mod_flow_entry(dpath, flow, dpath.ofproto.OFPFC_ADD)
return
def _actions():
if not offlow.is_action_needed(dpath, cmd):
return []
actions = []
for action in entry.actions:
if action.name == pb.VLANFlow.Action.PUSH_VLAN:
vlan_vid = action.value | fibcapi.OFPVID_PRESENT
actions.append(ofaction.push_vlan(fibcapi.ETHTYPE_VLAN_Q))
actions.append(ofaction.set_field("vlan_vid", vlan_vid))
elif action.name == pb.VLANFlow.Action.SET_VRF:
actions.append(ofaction.set_vrf(action.value, use_metadata))
actions.append(ofaction.goto_table(entry.goto_table))
return actions
def setup_term_mac_flow(dpath, ofctl):
"""
Termination MAC flow (for setup)
"""
matches = [
ofmatch.Match().eth_dst(fibcapi.HWADDR_MULTICAST4_MATCH).eth_type(
fibcapi.ETHTYPE_IPV4),
ofmatch.Match().eth_dst(fibcapi.HWADDR_MULTICAST6_MATCH).eth_type(
fibcapi.ETHTYPE_IPV6),
]
actions = [ofaction.goto_table(pb.FlowMod.MULTICAST_ROUTING)]
for match in matches:
flow = offlow.flow_mod(
match=match,
actions=actions,
writes=[],
table_id=pb.FlowMod.TERM_MAC,
priority=2,
)
ofctl.mod_flow_entry(dpath, flow, dpath.ofproto.OFPFC_ADD)
def _actions():
if not offlow.is_action_needed(dpath, cmd):
return []
actions = [
ofaction.goto_table(entry.goto_table),
ofaction.dec_mpls_ttl(),
]
if entry.goto_table == pb.FlowMod.MPLS_TYPE:
actions.append(
ofaction.set_mpls_type(fibcapi.MPLSTYPE_PHP, use_metadata))
for action in entry.actions:
if action.name == pb.MPLSFlow.Action.POP_LABEL:
actions.append(ofaction.pop_mpls(action.value))
elif action.name == pb.MPLSFlow.Action.SET_VRF:
actions.append(ofaction.set_vrf(action.value, use_metadata))
return actions
def _add_mpls_type_flows(dpath, ofctl):
"""
MPLS Type builtin flows.
"""
datas = [
(fibcapi.MPLSTYPE_VPS, pb.FlowMod.POLICY_ACL),
(fibcapi.MPLSTYPE_UNICAST, pb.FlowMod.UNICAST_ROUTING),
(fibcapi.MPLSTYPE_MULTICAST, pb.FlowMod.MULTICAST_ROUTING),
(fibcapi.MPLSTYPE_PHP, pb.FlowMod.POLICY_ACL),
]
for mpls_type, goto_table in datas:
flow = offlow.flow_mod(
match=ofmatch.Match().mpls_type(mpls_type, True),
actions=[
ofaction.goto_table(goto_table),
],
writes=[],
table_id=pb.FlowMod.MPLS_TYPE,
priority=1,
)
ofctl.mod_flow_entry(dpath, flow, dpath.ofproto.OFPFC_ADD)
return
def _actions():
if not offlow.is_action_needed(dpath, cmd):
return []
return [ofaction.goto_table(pb.FlowMod.POLICY_ACL)]
def _actions():
if not offlow.is_action_needed(dpath, cmd):
return []
return [ofaction.goto_table(entry.goto_table)]
