#
# NEPI, a framework to manage network experiments
# Copyright (C) 2014 INRIA
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see .
#
# Author: Alina Quereilhac
from nepi.execution.attribute import Attribute, Flags
from nepi.execution.resource import clsinit_copy
from nepi.execution.trace import Trace
from nepi.resources.ns3.ns3base import NS3Base
import ipaddr
@clsinit_copy
class NS3Route(NS3Base):
_rtype = "ns3::Route"
@classmethod
def _register_attributes(cls):
network = Attribute("network", "Destination network address",
flags = Flags.Design)
prefix = Attribute("prefix", "Network prefix for the network",
flags = Flags.Design)
nexthop = Attribute("nexthop", "Address of next hop in the route",
flags = Flags.Design)
cls._register_attribute(network)
cls._register_attribute(prefix)
cls._register_attribute(nexthop)
def __init__(self, ec, guid):
super(NS3Route, self).__init__(ec, guid)
@property
def node(self):
from nepi.resources.ns3.ns3node import NS3BaseNode
nodes = self.get_connected(NS3BaseNode.get_rtype())
if not nodes:
msg = "Device not connected to node"
self.error(msg)
raise RuntimeError, msg
return nodes[0]
@property
def _rms_to_wait(self):
# Wait for all network devices connected to the node to be ready
# before configuring the routes, else the route might refer to a
# non yet existing interface
rms = set()
rms.update(self.node.devices)
return rms
def _instantiate_object(self):
pass
def _configure_object(self):
network = self.get("network")
prefix = self.get("prefix")
nexthop = self.get("nexthop")
ipv4_uuid = self.node.ipv4.uuid
ret = self.simulation.invoke(ipv4_uuid, "addStaticRoute", network,
prefix, nexthop)
if not ret:
msg = "Could not configure route %s/%s hop: %s" % (network, prefix,
nexthop)
self.error(msg)
raise RuntimeError, msg
def _connect_object(self):
node = self.node
if node and node.uuid not in self.connected:
self._connected.add(node.uuid)