def build_ordered_output_actions(acl_table,
output_list,
tunnel_rules=None,
source_id=None):
"""Build actions from ordered ACL output list"""
output_actions = []
output_ports = []
output_ofmsgs = []
output_inst = []
for action in output_list:
for key, value in action.items():
if key == 'pop_vlans':
for _ in range(value):
output_actions.append(valve_of.pop_vlan())
if key == 'vlan_vid':
output_actions.extend(push_vlan(acl_table, value))
if key == 'swap_vid':
output_actions.append(acl_table.set_vlan_vid(value))
if key == 'vlan_vids':
for vlan_vid in value:
output_actions.extend(push_vlan(acl_table, vlan_vid))
if key == 'set_fields':
for set_field in value:
output_actions.append(acl_table.set_field(**set_field))
if key == 'port':
output_ports.append(value)
output_actions.append(valve_of.output_port(value))
if key == 'ports':
for output_port in value:
output_ports.append(output_port)
output_actions.append(valve_of.output_port(output_port))
if key == 'failover':
group_id = value['group_id']
buckets = []
for port in value['ports']:
buckets.append(
valve_of.bucket(watch_port=port,
actions=[valve_of.output_port(port)]))
output_ofmsgs.extend(
valve_of.groupadd_ff(group_id=group_id, buckets=buckets))
output_actions.append(valve_of.group_act(group_id=group_id))
if key == 'tunnel' and tunnel_rules and source_id is not None:
source_rule = tunnel_rules[value][source_id]
_, tunnel_actions, tunnel_ofmsgs, tunnel_inst = build_output_actions(
acl_table, source_rule)
output_actions.extend(tunnel_actions)
output_ofmsgs.extend(tunnel_ofmsgs)
output_inst.extend(tunnel_inst)
if key == 'goto':
output_inst.append(valve_of.goto_table_id(value))
return (output_ports, output_actions, output_ofmsgs, output_inst)
def build_output_actions(acl_table,
output_dict,
tunnel_rules=None,
source_id=None):
"""Implement actions to alter packet/output."""
if isinstance(output_dict, (list, tuple)):
return build_ordered_output_actions(acl_table, output_dict,
tunnel_rules, source_id)
output_actions = []
output_inst = []
output_port = None
ofmsgs = []
# rewrite any VLAN headers first always
vlan_actions = rewrite_vlan(acl_table, output_dict)
if vlan_actions:
output_actions.extend(vlan_actions)
if 'set_fields' in output_dict:
for set_field in output_dict['set_fields']:
output_actions.append(acl_table.set_field(**set_field))
if 'port' in output_dict:
output_port = output_dict['port']
output_actions.append(valve_of.output_port(output_port))
if 'ports' in output_dict:
for output_port in output_dict['ports']:
output_actions.append(valve_of.output_port(output_port))
if 'failover' in output_dict:
failover = output_dict['failover']
group_id = failover['group_id']
buckets = []
for port in failover['ports']:
buckets.append(
valve_of.bucket(watch_port=port,
actions=[valve_of.output_port(port)]))
ofmsgs.extend(valve_of.groupadd_ff(group_id=group_id, buckets=buckets))
output_actions.append(valve_of.group_act(group_id=group_id))
if 'tunnel' in output_dict and tunnel_rules and source_id is not None:
tunnel_id = output_dict['tunnel']
source_rule = tunnel_rules[tunnel_id][source_id]
_, tunnel_actions, tunnel_ofmsgs, tunnel_inst = build_output_actions(
acl_table, source_rule)
output_actions.extend(tunnel_actions)
tunnel_ofmsgs.extend(tunnel_ofmsgs)
output_inst.extend(tunnel_inst)
if 'goto' in output_dict:
output_inst.append(valve_of.goto_table_id(output_dict['goto']))
return (output_port, output_actions, ofmsgs, output_inst)