def _start(self):
# TODO: use ShellCommandSerializer
tunnel_cmd = IPRoute2Commands.get_gretap_tunnel_cmd(self.get_tunnel_name(), self.remote_ip,
self.get_tunnel_id())
log.info("creating gretap tunnel for %s<->%s" % (self.emulation_node_x.id, self.emulation_node_y.id))
self.add_command(self.EVENT_TUNNEL_ADD, tunnel_cmd)
log.info("changing NIC MTU to '%d' ... ", GRETAP_MTU)
self.get_local_emulation_node().virtualization_layer.set_link_mtus(mtu=GRETAP_MTU)
# set tunnel dev group
super(GreTapTunnel, self)._start()
def reset(self):
"""
Raises
------
NetworkBackendErrorReset
Returns
-------
"""
try:
if self.started and self.bridge_dev_name:
self.run(
IPRoute2Commands.get_link_del_cmd(self.bridge_dev_name))
except Exception as e:
raise NetworkBackendErrorReset(
"""Could not shutdown the bridge '%s'
Interface dump:
%s
""" % (self, pformat(self.get_interfaces())),
caused_by=e)
def _tap_link_up(self, tap_x, tap_y, up=True):
cmd = IPRoute2Commands.get_interface_up_cmd(tap_x, state_down=not up)
self.add_shell_command(self.EVENT_CONN_STATE_CHANGE, cmd)
# remember that the device is up (or down)
singletons.network_backend.connection_book_keeper.interface_states.toggle_state(tap_x, up)
def _shutdown(self):
tunnel_cmd = IPRoute2Commands.get_link_del_cmd(self.get_tunnel_name())
self.add_command(self.EVENT_TUNNEL_REMOVE, tunnel_cmd)
def reset(self):
from miniworld.model.network.backends.bridged.iproute2 import IPRoute2Commands
self.run_shell(IPRoute2Commands.get_link_del_cmd(self.get_tunnel_name()))
def _get_bridge_set_hub_mode_cmd(self):
return IPRoute2Commands.get_bridge_set_hub_mode_cmd(
self.bridge_dev_name)
def _get_bridge_add_cmd(self):
return IPRoute2Commands.get_bridge_add_cmd(self.bridge_dev_name)
def _get_bridge_up_cmd(self, _if_name):
return IPRoute2Commands.get_interface_up_cmd(_if_name)
def _get_bridge_add_if_cmd(self, _if_name):
return IPRoute2Commands.get_bridge_add_if_cmd(
_if_name, self.bridge_dev_name)