def push_vlan(vlan_vid):
"""Push a VLAN tag with optional selection of eth type."""
vid = vlan_vid
vlan_eth_type = None
if isinstance(vlan_vid, dict):
vid = vlan_vid['vid']
if 'eth_type' in vlan_vid:
vlan_eth_type = vlan_vid['eth_type']
if vlan_eth_type is None:
return valve_of.push_vlan_act(vid)
return valve_of.push_vlan_act(vid, eth_type=vlan_eth_type)
def push_vlan(acl_table, vlan_vid):
"""Push a VLAN tag with optional selection of eth type."""
vid = vlan_vid
vlan_eth_type = None
if isinstance(vlan_vid, dict):
vid = vlan_vid['vid']
if 'eth_type' in vlan_vid:
vlan_eth_type = vlan_vid['eth_type']
if vlan_eth_type is None:
return valve_of.push_vlan_act(acl_table, vid)
return valve_of.push_vlan_act(
acl_table, vid, eth_type=vlan_eth_type)
def rewrite_vlan(output_dict):
vlan_actions = []
if 'pop_vlans' in output_dict:
for _ in range(output_dict['pop_vlans']):
vlan_actions.append(valve_of.pop_vlan())
# if vlan tag is specified, push it.
if 'vlan_vid' in output_dict:
vlan_actions.extend(
valve_of.push_vlan_act(output_dict['vlan_vid']))
# or, if a list, push them all (all with type Q).
elif 'vlan_vids' in output_dict:
for vid in output_dict['vlan_vids']:
vlan_actions.extend(valve_of.push_vlan_act(vid))
return vlan_actions
def _port_add_vlan_untagged(self, port, vlan, forwarding_table, mirror_act):
push_vlan_act = mirror_act + valve_of.push_vlan_act(vlan.vid)
push_vlan_inst = [
valve_of.apply_actions(push_vlan_act),
valve_of.goto_table(forwarding_table)
]
null_vlan = namedtuple('null_vlan', 'vid')
null_vlan.vid = valve_of.ofp.OFPVID_NONE
return self._port_add_vlan_rules(port, null_vlan, push_vlan_inst)
def _port_add_vlan_rules(self, port, vlan, mirror_act, push_vlan=True):
actions = copy.copy(mirror_act)
match_vlan = vlan
if push_vlan:
actions.extend(valve_of.push_vlan_act(
self.vlan_table, vlan.vid))
match_vlan = NullVLAN()
if self.has_externals:
if port.loop_protect_external:
actions.append(self.vlan_table.set_no_external_forwarding_requested())
else:
actions.append(self.vlan_table.set_external_forwarding_requested())
inst = (
valve_of.apply_actions(actions),
self.vlan_table.goto(self._find_forwarding_table(vlan)))
return self.vlan_table.flowmod(
self.vlan_table.match(in_port=port.number, vlan=match_vlan),
priority=self.low_priority, inst=inst)
