def delete_vlan_bridge(self, bridge_name):
if self.device_exists(bridge_name):
interfaces_on_bridge = self.get_interfaces_on_bridge(bridge_name)
for interface in interfaces_on_bridge:
self.remove_interface(bridge_name, interface)
if interface.startswith(VXLAN_INTERFACE_PREFIX):
self.delete_vxlan(interface)
continue
for physical_interface in self.interface_mappings.itervalues():
if (interface.startswith(physical_interface)):
ips, gateway = self.get_interface_details(bridge_name)
if ips:
# This is a flat network or a VLAN interface that
# was setup outside of neutron => return IP's from
# bridge to interface
self.update_interface_ip_details(
interface, bridge_name, ips, gateway)
elif physical_interface != interface:
self.delete_vlan(interface)
LOG.debug(_("Deleting bridge %s"), bridge_name)
if utils.execute(['ip', 'link', 'set', bridge_name, 'down'],
root_helper=self.root_helper):
return
if utils.execute(['brctl', 'delbr', bridge_name],
root_helper=self.root_helper):
return
LOG.debug(_("Done deleting bridge %s"), bridge_name)
else:
LOG.error(_("Cannot delete bridge %s, does not exist"),
bridge_name)
def delete_vlan_bridge(self, bridge_name):
if self.device_exists(bridge_name):
interfaces_on_bridge = self.get_interfaces_on_bridge(bridge_name)
for interface in interfaces_on_bridge:
self.remove_interface(bridge_name, interface)
if interface.startswith(VXLAN_INTERFACE_PREFIX):
self.delete_vxlan(interface)
continue
for physical_interface in self.interface_mappings.itervalues():
if (interface.startswith(physical_interface)):
ips, gateway = self.get_interface_details(bridge_name)
if ips:
# This is a flat network or a VLAN interface that
# was setup outside of neutron => return IP's from
# bridge to interface
self.update_interface_ip_details(interface,
bridge_name,
ips, gateway)
elif physical_interface != interface:
self.delete_vlan(interface)
LOG.debug(_("Deleting bridge %s"), bridge_name)
if utils.execute(['ip', 'link', 'set', bridge_name, 'down'],
root_helper=self.root_helper):
return
if utils.execute(['brctl', 'delbr', bridge_name],
root_helper=self.root_helper):
return
LOG.debug(_("Done deleting bridge %s"), bridge_name)
else:
LOG.error(_("Cannot delete bridge %s, does not exist"),
bridge_name)
def get_tap_devices_count(self, bridge_name):
bridge_interface_path = BRIDGE_INTERFACES_FS.replace(
BRIDGE_NAME_PLACEHOLDER, bridge_name)
try:
if_list = os.listdir(bridge_interface_path)
return len([interface for interface in if_list if
interface.startswith(TAP_INTERFACE_PREFIX)])
except OSError:
return 0
def get_tap_devices_count(self, bridge_name):
bridge_interface_path = BRIDGE_INTERFACES_FS.replace(
BRIDGE_NAME_PLACEHOLDER, bridge_name)
try:
if_list = os.listdir(bridge_interface_path)
return len([
interface for interface in if_list
if interface.startswith(TAP_INTERFACE_PREFIX)
])
except OSError:
return 0