+++ /dev/null
-#
-# 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 version 2 as
-# published by the Free Software Foundation;
-#
-# 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 <http://www.gnu.org/licenses/>.
-#
-# Author: Alina Quereilhac <alina.quereilhac@inria.fr>
-
-from nepi.execution.attribute import Attribute, Flags, Types
-from nepi.execution.resource import clsinit_copy, ResourceState
-from nepi.resources.linux.application import LinuxApplication
-
-import os
-
-@clsinit_copy
-class LinuxRoute(LinuxApplication):
- _rtype = "linux::Route"
- _help = "Adds a route to the host using iptools "
-
- @classmethod
- def _register_attributes(cls):
- network = Attribute("network", "Network address", flags=Flags.Design)
- prefix = Attribute("prefix", "IP prefix length", flags=Flags.Design)
- nexthop = Attribute("nexthop", "Nexthop IP", flags=Flags.Design)
-
- cls._register_attribute(network)
- cls._register_attribute(prefix)
- cls._register_attribute(nexthop)
-
- def __init__(self, ec, guid):
- super(LinuxRoute, self).__init__(ec, guid)
- self._home = "route-%s" % self.guid
- self._device = None
-
- @property
- def device(self):
- if not self._device:
- from nepi.resources.linux.tap import LinuxTap
- from nepi.resources.linux.tun import LinuxTun
- from nepi.resources.linux.interface import LinuxInterface
- tap = self.get_connected(LinuxTap.get_rtype())
- tun = self.get_connected(LinuxTun.get_rtype())
- interface = self.get_connected(LinuxInterface.get_rtype())
- if tap: self._device = tap[0]
- elif tun: self._device = tun[0]
- elif interface: self._device = interface[0]
- else:
- raise RuntimeError("linux::Routes must be connected to a "\
- "linux::TAP, linux::TUN, or linux::Interface")
- return self._device
-
- @property
- def node(self):
- return self.device.node
-
- def upload_start_command(self):
- # We want to make sure the route is configured
- # before the deploy is over, so we execute the
- # start script now and wait until it finishes.
- command = self.get("command")
- command = self.replace_paths(command)
-
- shfile = os.path.join(self.app_home, "start.sh")
- self.node.run_and_wait(command, self.run_home,
- shfile = shfile,
- overwrite = True)
-
- def upload_sources(self):
- # upload stop.sh script
- stop_command = self.replace_paths(self._stop_command)
-
- self.node.upload(stop_command,
- os.path.join(self.app_home, "stop.sh"),
- text = True,
- # Overwrite file every time.
- # The stop.sh has the path to the socket, which should change
- # on every experiment run.
- overwrite = True)
-
- def do_deploy(self):
- if not self.device or self.device.state < ResourceState.PROVISIONED:
- self.ec.schedule(self.reschedule_delay, self.deploy)
- else:
- if not self.get("command"):
- self.set("command", self._start_command)
-
- self.do_discover()
- self.do_provision()
-
- self.set_ready()
-
- def do_start(self):
- if self.state == ResourceState.READY:
- command = self.get("command")
- self.info("Starting command '%s'" % command)
-
- self.set_started()
- else:
- msg = " Failed to execute command '%s'" % command
- self.error(msg, out, err)
- raise RuntimeError(msg)
-
- def do_stop(self):
- command = self.get('command') or ''
-
- if self.state == ResourceState.STARTED:
- self.info("Stopping command '%s'" % command)
-
- command = "bash %s" % os.path.join(self.app_home, "stop.sh")
- (out, err), proc = self.execute_command(command,
- blocking = True)
-
- if err:
- msg = " Failed to stop command '%s' " % command
- self.error(msg, out, err)
-
- self.set_stopped()
-
- @property
- def _start_command(self):
- network = self.get("network")
- prefix = self.get("prefix")
- nexthop = self.get("nexthop")
- devicename = self.device.get("deviceName")
-
- command = []
- command.append("sudo -S ip route add %s/%s %s dev %s" % (
- self.get("network"),
- self.get("prefix"),
- "default" if not nexthop else "via %s" % nexthop,
- devicename))
-
- return " ".join(command)
-
- @property
- def _stop_command(self):
- network = self.get("network")
- prefix = self.get("prefix")
- nexthop = self.get("nexthop")
- devicename = self.device.get("deviceName")
-
- command = []
- command.append("sudo -S ip route del %s/%s %s dev %s" % (
- self.get("network"),
- self.get("prefix"),
- "default" if not nexthop else "via %s" % nexthop,
- devicename))
-
- return " ".join(command)
-
git://git.onelab.eu / nepi.git / blobdiff