def unplug(self, device_name, bridge=None, namespace=None, prefix=None):
"""Unplug the interface."""
device = ip_lib.IPDevice(device_name, namespace=namespace)
try:
device.link.delete()
LOG.debug("Unplugged interface '%s'", device_name)
except RuntimeError:
LOG.error(("Failed unplugging interface '%s'"), device_name)
def get_local_port_mac(self):
"""Retrieve the mac of the bridge's local port."""
address = ip_lib.IPDevice(self.br_name).link.address
if address:
return address
else:
msg = _('Unable to determine mac address for %s') % self.br_name
raise Exception(msg)
def init_l3(self,
device_name,
ip_cidrs,
namespace=None,
preserve_ips=[],
gateway_ips=None,
extra_subnets=[],
enable_ra_on_gw=False):
"""Set the L3 settings for the interface using data from the port.
ip_cidrs: list of 'X.X.X.X/YY' strings
preserve_ips: list of ip cidrs that should not be removed from device
gateway_ips: For gateway ports, list of external gateway ip addresses
enable_ra_on_gw: Boolean to indicate configuring acceptance of IPv6 RA
"""
device = ip_lib.IPDevice(device_name, namespace=namespace)
previous = set()
for address in device.addr.list(scope='global', filters=['permanent']):
previous.add(address['cidr'])
# add new addresses
for ip_cidr in ip_cidrs:
net = netaddr.IPNetwork(ip_cidr)
# Convert to compact IPv6 address because the return values of
# "ip addr list" are compact.
if net.version == 6:
ip_cidr = str(net)
if ip_cidr in previous:
previous.remove(ip_cidr)
continue
device.addr.add(ip_cidr)
# clean up any old addresses
for ip_cidr in previous:
if ip_cidr not in preserve_ips:
device.addr.delete(ip_cidr)
self.delete_conntrack_state(namespace=namespace, ip=ip_cidr)
for gateway_ip in gateway_ips or []:
device.route.add_gateway(gateway_ip)
if enable_ra_on_gw:
self.configure_ipv6_ra(namespace, device_name)
new_onlink_routes = set(s['cidr'] for s in extra_subnets)
existing_onlink_routes = set(
device.route.list_onlink_routes(n_const.IP_VERSION_4) +
device.route.list_onlink_routes(n_const.IP_VERSION_6))
for route in new_onlink_routes - existing_onlink_routes:
device.route.add_onlink_route(route)
for route in existing_onlink_routes - new_onlink_routes:
device.route.delete_onlink_route(route)
def unplug(self, device_name, bridge=None, namespace=None, prefix=None):
"""Unplug the interface."""
if not bridge:
bridge = self.conf.ovs_integration_bridge
tap_name = self._get_tap_name(device_name, prefix)
self.check_bridge_exists(bridge)
ovs = ovs_lib.OVSBridge(bridge)
try:
ovs.delete_port(tap_name)
if self.conf.ovs_use_veth:
device = ip_lib.IPDevice(device_name, namespace=namespace)
device.link.delete()
LOG.debug("Unplugged interface '%s'", device_name)
except RuntimeError:
LOG.error(("Failed unplugging interface '%s'"), device_name)