def test_dev_mac(self):
"""Test device MAC address read.
"""
mock_handle = io.open.return_value
mock_handle.read.return_value = '11:22:33:44:55\n'
res = netdev.dev_mac('foo')
io.open.assert_called_with('/sys/class/net/foo/address')
self.assertEqual(res, '11:22:33:44:55')
def test_dev_mac(self, mock_open):
"""Test device MAC address read.
"""
mock_file = mock_open.return_value
mock_filectx = mock_file.__enter__.return_value
mock_filectx.read.return_value = '11:22:33:44:55\n'
res = netdev.dev_mac('foo')
mock_open.assert_called_with('/sys/class/net/foo/address')
self.assertEqual(res, '11:22:33:44:55')
def _bridge_initialize(self):
"""Reset/initialize the Treadmill node bridge.
"""
try:
# FIXME(boysson): This is for migration when TM_DEV0 used to be a
# bridge.
netdev.link_set_down(self._TM_DEV0)
netdev.bridge_delete(self._TM_DEV0)
except subproc.CalledProcessError:
pass
try:
netdev.link_set_down(self._TM_DEV0)
netdev.link_del_veth(self._TM_DEV0)
except subproc.CalledProcessError:
pass
try:
netdev.link_set_down(self._TMBR_DEV)
netdev.bridge_delete(self._TMBR_DEV)
except subproc.CalledProcessError:
pass
netdev.bridge_create(self._TMBR_DEV)
netdev.bridge_setfd(self._TMBR_DEV, 0)
netdev.link_add_veth(self._TM_DEV0, self._TM_DEV1)
netdev.link_set_mtu(self._TM_DEV0, self.ext_mtu)
netdev.link_set_mtu(self._TM_DEV1, self.ext_mtu)
netdev.bridge_addif(self._TMBR_DEV, self._TM_DEV1)
# Force the bridge MAC address to the Treadmill device. This
# prevents the bridge's MAC from changing when adding/removing
# container interfaces.
# (Default Linux bridge behavior is to set the bridge's MAC to be
# lowest of it's ports).
tm_mac = netdev.dev_mac(self._TM_DEV1)
netdev.link_set_addr(self._TMBR_DEV, tm_mac)
# Bring up the bridge interface
netdev.link_set_up(self._TMBR_DEV)
netdev.link_set_up(self._TM_DEV1)
netdev.addr_add(
addr='{ip}/16'.format(ip=self._TM_IP),
devname=self._TM_DEV0
)
# Enable route_localnet so that we can redirect traffic from the
# container to the node's loopback address.
netdev.dev_conf_route_localnet_set(self._TM_DEV0, True)
# Bring up the TM interface
netdev.link_set_up(self._TM_DEV0)