def test_find_matching_iface(self, gim):
# we mock-out get_interface_macaddress to return useful values for the test
gim.side_effect = lambda x: '00:01:02:03:04:05' if x == 'eth1' else '00:00:00:00:00:00'
match = {'name': 'e*', 'macaddress': '00:01:02:03:04:05'}
iface = utils.find_matching_iface(DEVICES, match)
self.assertEqual(iface, 'eth1')
def test_find_matching_iface_name_and_driver(self, gidn):
# we mock-out get_interface_driver_name to return useful values for the test
gidn.side_effect = lambda x: 'foo' if x == 'ens4' else 'bar'
match = {'name': 'ens?', 'driver': 'f*'}
iface = utils.find_matching_iface(DEVICES, match)
self.assertEqual(iface, 'ens4')
def process_link_changes(
interfaces,
config_manager): # pragma: nocover (covered in autopkgtest)
"""
Go through the pending changes and pick what needs special handling.
Only applies to non-critical interfaces which can be safely updated.
"""
changes = {}
phys = dict(config_manager.physical_interfaces)
composite_interfaces = [config_manager.bridges, config_manager.bonds]
# Find physical interfaces which need a rename
# But do not rename virtual interfaces
for phy, settings in phys.items():
if not settings or not isinstance(settings, dict):
continue # Skip special values, like "renderer: ..."
newname = settings.get('set-name')
if not newname:
continue # Skip if no new name needs to be set
match = settings.get('match')
if not match:
continue # Skip if no match for current name is given
if NetplanApply.is_composite_member(composite_interfaces, phy):
logging.debug('Skipping composite member {}'.format(phy))
# do not rename members of virtual devices. MAC addresses
# may be the same for all interface members.
continue
# Find current name of the interface, according to match conditions and globs (name, mac, driver)
current_iface_name = utils.find_matching_iface(interfaces, match)
if not current_iface_name:
logging.warning(
'Cannot find unique matching interface for {}: {}'.format(
phy, match))
continue
if current_iface_name == newname:
# Skip interface if it already has the correct name
logging.debug(
'Skipping correctly named interface: {}'.format(newname))
continue
if settings.get('critical', False):
# Skip interfaces defined as critical, as we should not take them down in order to rename
logging.warning(
'Cannot rename {} ({} -> {}) at runtime (needs reboot), due to being critical'
.format(phy, current_iface_name, newname))
continue
# record the interface rename change
changes[current_iface_name] = {'name': newname}
logging.debug('Link changes: {}'.format(changes))
return changes
def test_find_matching_iface_too_many(self):
# too many matches
iface = utils.find_matching_iface(DEVICES, {'name': 'e*'})
self.assertEqual(iface, None)