def mk_oxm_fields(match_fields):
oxm_fields = [
ofp.ofp_oxm_field(oxm_class=ofp.OFPXMC_OPENFLOW_BASIC, ofb_field=field)
for field in match_fields
]
return oxm_fields
def set_field(field):
return action(
type=SET_FIELD,
set_field=ofp.ofp_action_set_field(
field=ofp.ofp_oxm_field(
oxm_class=ofp.OFPXMC_OPENFLOW_BASIC,
ofb_field=field))
)
def mk_simple_flow_mod(match_fields, actions, command=ofp.OFPFC_ADD,
next_table_id=None, **kw):
"""
Convenience function to generare ofp_flow_mod message with OXM BASIC match
composed from the match_fields, and single APPLY_ACTIONS instruction with
a list if ofp_action objects.
:param match_fields: list(ofp_oxm_ofb_field)
:param actions: list(ofp_action)
:param command: one of OFPFC_*
:param kw: additional keyword-based params to ofp_flow_mod
:return: initialized ofp_flow_mod object
"""
instructions = [
ofp.ofp_instruction(
type=ofp.OFPIT_APPLY_ACTIONS,
actions=ofp.ofp_instruction_actions(actions=actions)
)
]
if next_table_id is not None:
instructions.append(ofp.ofp_instruction(
type=ofp.OFPIT_GOTO_TABLE,
goto_table=ofp.ofp_instruction_goto_table(table_id=next_table_id)
))
return ofp.ofp_flow_mod(
command=command,
match=ofp.ofp_match(
type=ofp.OFPMT_OXM,
oxm_fields=[
ofp.ofp_oxm_field(
oxm_class=ofp.OFPXMC_OPENFLOW_BASIC,
ofb_field=field
) for field in match_fields
]
),
instructions=instructions,
**kw
)
def loxi_oxm_udp_src_to_ofp_oxm(lo):
return pb2.ofp_oxm_field(
oxm_class=pb2.OFPXMC_OPENFLOW_BASIC,
ofb_field=pb2.ofp_oxm_ofb_field(type=pb2.OFPXMT_OFB_UDP_SRC,
udp_src=lo.value))
def loxi_oxm_metadata_to_ofp_oxm(lo):
return pb2.ofp_oxm_field(oxm_class=pb2.OFPXMC_OPENFLOW_BASIC,
ofb_field=pb2.ofp_oxm_ofb_field(
type=pb2.OFPXMT_OFB_METADATA,
table_metadata=lo.value))
def loxi_oxm_ipv4_dst_to_ofp_oxm(lo):
return pb2.ofp_oxm_field(oxm_class=pb2.OFPXMC_OPENFLOW_BASIC,
ofb_field=pb2.ofp_oxm_ofb_field(
type=pb2.OFPXMT_OFB_IPV4_DST,
ipv4_dst=lo.value))
def loxi_oxm_vlan_pcp_to_ofp_oxm(lo):
return pb2.ofp_oxm_field(oxm_class=pb2.OFPXMC_OPENFLOW_BASIC,
ofb_field=pb2.ofp_oxm_ofb_field(
type=pb2.OFPXMT_OFB_VLAN_PCP,
vlan_pcp=lo.value))
def loxi_oxm_ip_proto_to_ofp_oxm(lo):
return pb2.ofp_oxm_field(oxm_class=pb2.OFPXMC_OPENFLOW_BASIC,
ofb_field=pb2.ofp_oxm_ofb_field(
type=pb2.OFPXMT_OFB_IP_PROTO,
ip_proto=lo.value))
def loxi_oxm_in_port_to_ofp_oxm(lo):
return pb2.ofp_oxm_field(oxm_class=pb2.OFPXMC_OPENFLOW_BASIC,
ofb_field=pb2.ofp_oxm_ofb_field(
type=pb2.OFPXMT_OFB_IN_PORT, port=lo.value))
def loxi_oxm_eth_type_to_ofp_oxm(lo):
return pb2.ofp_oxm_field(oxm_class=pb2.OFPXMC_OPENFLOW_BASIC,
ofb_field=pb2.ofp_oxm_ofb_field(
type=pb2.OFPXMT_OFB_ETH_TYPE,
eth_type=lo.value))
