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removed ns3 related code

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Blake Harnden 2020-01-09 16:36:00 -08:00
parent 0a37a583ab
commit 4aeb16b866
18 changed files with 14 additions and 1574 deletions
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1
.gitignore vendored
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@ -54,7 +54,6 @@ coverage.xml
# ignore built input files
netns/setup.py
daemon/setup.py
ns3/setup.py
# ignore corefx build
corefx/target

3
Makefile.am
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@ -15,7 +15,7 @@ if WANT_DAEMON
endif
if WANT_NETNS
NETNS = netns ns3
NETNS = netns
endif
# keep docs last due to dependencies on binaries
@ -185,7 +185,6 @@ change-files:
$(call change-files,scripts/core-daemon.service)
$(call change-files,scripts/core-daemon)
$(call change-files,daemon/core/constants.py)
$(call change-files,ns3/setup.py)
$(call change-files,netns/setup.py)
$(call change-files,daemon/setup.py)

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configure.ac
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@ -262,8 +262,7 @@ AC_CONFIG_FILES([Makefile
daemon/doc/conf.py
daemon/proto/Makefile
netns/Makefile
netns/version.h
ns3/Makefile],)
netns/version.h],)
AC_OUTPUT
# Summary text

2
daemon/core/location/mobility.py
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@ -690,7 +690,7 @@ class WayPointMobility(WirelessModel):
self.setnodeposition(node, x2, y2, z2)
del self.points[node.id]
return True
# speed can be a velocity vector (ns3 mobility) or speed value
# speed can be a velocity vector or speed value
if isinstance(speed, (float, int)):
# linear speed value
alpha = math.atan2(y2 - y1, x2 - x1)

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docs/devguide.md
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@ -15,7 +15,6 @@ Current development focuses on the Python modules and daemon. Here is a brief de
|gui|Tcl/Tk GUI|
|man|Template files for creating man pages for various CORE command line utilities|
|netns|Python C extension modules for creating CORE containers|
|ns3|Experimental python ns3 script support for running CORE|
|scripts|Template files used for running CORE as a service|
## Getting started

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docs/experimental.md
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@ -1,9 +0,0 @@
# Experimental Features
Below are current features that are considered experimental and will likely have issues.
# NS3
Experimental support for scripting CORE nodes with NS3.
[NS# Overview](ns3.md)

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docs/index.md
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@ -32,7 +32,6 @@ networking scenarios, security studies, and increasing the size of physical test
|[EMANE](emane.md)|Overview of EMANE integration and integrating custom EMANE models|
|[Performance](performance.md)|Notes on performance when using CORE|
|[Developers Guide](devguide.md)|Overview of topics when developing CORE|
|[Experimental](experimental.md)|Experimental features for use with or within CORE|
## Credits

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docs/ns3.md
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@ -1,171 +0,0 @@
# CORE / NS3
* Table of Contents
{:toc}
**NOTE: Support for ns-3 is limited and not currently being developed.**
## What is ns-3?
[ns-3 network simulator](http://www.nsnam.org) is a discrete-event network simulator for Internet systems, targeted primarily for research and educational use. By default, ns-3 simulates entire networks, from applications down to channels, and it does so in simulated time, instead of real (wall-clock) time.
CORE can run in conjunction with ns-3 to simulate some types of networks. CORE network namespace virtual nodes can have virtual TAP interfaces installed using the simulator for communication. The simulator needs to run at wall clock time with the real-time scheduler. In this type of configuration, the CORE namespaces are used to provide packets to the ns-3 devices and channels. This allows, for example, wireless models developed for ns-3 to be used in an emulation context.
Users simulate networks with ns-3 by writing C++ programs or Python scripts that import the ns-3 library. Simulation models are objects instantiated in these scripts. Combining the CORE Python modules with ns-3 Python bindings allow a script to easily set up and manage an emulation + simulation environment.
## ns-3 Scripting
Currently, ns-3 is supported by writing Python scripts, but not through drag-and-drop actions within the GUI. If you have a copy of the CORE source, look under *ns3/examples/* for example scripts; a CORE installation package puts these under */usr/share/core/examples/corens3*.
To run these scripts, install CORE so the CORE Python libraries are accessible, and download and build ns-3. This has been tested using ns-3 releases starting with 3.11 (and through 3.16 as of this writing).
The first step is to open an ns-3 waf shell. [waf](http://code.google.com/p/waf/) is the build system for ns-3. Opening a waf shell as root will merely set some environment variables useful for finding python modules and ns-3 executables. The following environment variables are extended or set by issuing *waf shell*:
```shell
PATH
PYTHONPATH
LD_LIBRARY_PATH
NS3_MODULE_PATH
NS3_EXECUTABLE_PATH
```
Open a waf shell as root, so that network namespaces may be instantiated by the script with root permissions. For an example, run the *ns3wifi.py* program, which simply instantiates 10 nodes (by default) and places them on an ns-3 WiFi channel. That is, the script will instantiate 10 namespace nodes, and create a special tap device that sends packets between the namespace node and a special ns-3 simulation node, where the tap device is bridged to an ns-3 WiFi network device, and attached to an ns-3 WiFi channel.
```shell
cd ns-allinone-3.16/ns-3.16
sudo ./waf shell
# use '/usr/local' below if installed from source
cd /usr/share/core/examples/corens3/
```
```python
python -i ns3wifi.py
# running ns-3 simulation for 600 seconds
print session
<corens3.obj.Ns3Session object at 0x1963e50>
```
The interactive Python shell allows some interaction with the Python objects for the emulation.
In another terminal, nodes can be accessed using *vcmd*:
```shell
vcmd -c /tmp/pycore.10781/n1 -- bash
root@n1:/tmp/pycore.10781/n1.conf#
root@n1:/tmp/pycore.10781/n1.conf# ping 10.0.0.3
PING 10.0.0.3 (10.0.0.3) 56(84) bytes of data.
64 bytes from 10.0.0.3: icmp_req=1 ttl=64 time=7.99 ms
64 bytes from 10.0.0.3: icmp_req=2 ttl=64 time=3.73 ms
64 bytes from 10.0.0.3: icmp_req=3 ttl=64 time=3.60 ms
^C
--- 10.0.0.3 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 3.603/5.111/7.993/2.038 ms
root@n1:/tmp/pycore.10781/n1.conf#
```
The ping packets shown above are traversing an ns-3 ad-hoc Wifi simulated network.
To clean up the session, use the Session.shutdown() method from the Python terminal.
```python
print session
<corens3.obj.Ns3Session object at 0x1963e50>
session.shutdown()
```
A CORE/ns-3 Python script will instantiate an Ns3Session, which is a CORE Session having CoreNs3Nodes, an ns-3 MobilityHelper, and a fixed duration. The CoreNs3Node inherits from both the CoreNode and the ns-3 Node classes -- it is a network namespace having an associated simulator object. The CORE TunTap interface is used, represented by a ns-3 TapBridge in *CONFIGURE_LOCAL* mode, where ns-3 creates and configures the tap device. An event is scheduled to install the taps at time 0.
**NOTE: The GUI can be used to run the *ns3wifi.py* and *ns3wifirandomwalk.py* scripts directly. First, *core-daemon* must be stopped and run within the waf root shell. Then the GUI may be run as a normal user, and the *Execute Python Script...* option may be used from the *File* menu. Dragging nodes around in the *ns3wifi.py* example will cause their ns-3 positions to be updated.**
Users may find the files *ns3wimax.py* and *ns3lte.py* in that example directory; those files were similarly configured, but the underlying ns-3 support is not present as of ns-3.16, so they will not work. Specifically, the ns-3 has to be extended to support bridging the Tap device to an LTE and a WiMax device.
## Integration details
The previous example *ns3wifi.py* used Python API from the special Python objects *Ns3Session* and *Ns3WifiNet*. The example program does not import anything directly from the ns-3 python modules; rather, only the above two objects are used, and the API available to configure the underlying ns-3 objects is constrained. For example, *Ns3WifiNet* instantiates a constant-rate 802.11a-based ad hoc network, using a lot of ns-3 defaults.
However, programs may be written with a blend of ns-3 API and CORE Python API calls. This section examines some of the fundamental objects in the CORE ns-3 support. Source code can be found in *ns3/corens3/obj.py* and example code in *ns3/corens3/examples/*.
## Ns3Session
The *Ns3Session* class is a CORE Session that starts an ns-3 simulation thread. ns-3 actually runs as a separate process on the same host as the CORE daemon, and the control of starting and stopping this process is performed by the *Ns3Session* class.
Example:
```python
session = Ns3Session(persistent=True, duration=opt.duration)
```
Note the use of the duration attribute to control how long the ns-3 simulation should run. By default, the duration is 600 seconds.
Typically, the session keeps track of the ns-3 nodes (holding a node container for references to the nodes). This is accomplished via the ```addnode()``` method, e.g.:
```python
for i in xrange(1, opt.numnodes + 1):
node = session.addnode(name = "n%d" % i)
```
```addnode()``` creates instances of a *CoreNs3Node*, which we'll cover next.
## CoreNs3Node
A *CoreNs3Node* is both a CoreNode and an ns-3 node:
```python
class CoreNs3Node(CoreNode, ns.network.Node):
"""
The CoreNs3Node is both a CoreNode backed by a network namespace and
an ns-3 Node simulator object. When linked to simulated networks, the TunTap
device will be used.
"""
```
## CoreNs3Net
A *CoreNs3Net* derives from *PyCoreNet*. This network exists entirely in simulation, using the TunTap device to interact between the emulated and the simulated realm. *Ns3WifiNet* is a specialization of this.
As an example, this type of code would be typically used to add a WiFi network to a session:
```python
wifi = session.addobj(cls=Ns3WifiNet, name="wlan1", rate="OfdmRate12Mbps")
wifi.setposition(30, 30, 0)
```
The above two lines will create a wlan1 object and set its initial canvas position. Later in the code, the newnetif method of the CoreNs3Node can be used to add interfaces on particular nodes to this network; e.g.:
```python
for i in xrange(1, opt.numnodes + 1):
node = session.addnode(name = "n%d" % i)
node.newnetif(wifi, ["%s/%s" % (prefix.addr(i), prefix.prefixlen)])
```
## Mobility
Mobility in ns-3 is handled by an object (a MobilityModel) aggregated to an ns-3 node. The MobilityModel is able to report the position of the object in the ns-3 space. This is a slightly different model from, for instance, EMANE, where location is associated with an interface, and the CORE GUI, where mobility is configured by right-clicking on a WiFi cloud.
The CORE GUI supports the ability to render the underlying ns-3 mobility model, if one is configured, on the CORE canvas. For example, the example program :file:`ns3wifirandomwalk.py` uses five nodes (by default) in a random walk mobility model. This can be executed by starting the core daemon from an ns-3 waf shell:
```shell
sudo bash
cd /path/to/ns-3
./waf shell
core-daemon
```
and in a separate window, starting the CORE GUI (not from a waf shell) and selecting the *Execute Python script...* option from the File menu, selecting the *ns3wifirandomwalk.py* script.
The program invokes ns-3 mobility through the following statement:
```python
session.setuprandomwalkmobility(bounds=(1000.0, 750.0, 0))
```
This can be replaced by a different mode of mobility, in which nodes are placed according to a constant mobility model, and a special API call to the CoreNs3Net object is made to use the CORE canvas positions.
```python
session.setuprandomwalkmobility(bounds=(1000.0, 750.0, 0))
session.setupconstantmobility()
wifi.usecorepositions()
```
In this mode, the user dragging around the nodes on the canvas will cause CORE to update the position of the underlying ns-3 nodes.

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build

339
ns3/LICENSE
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@ -1,339 +0,0 @@
GNU GENERAL PUBLIC LICENSE
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<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
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Public License instead of this License.

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ns3/Makefile.am
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# CORE
# (c)2012 the Boeing Company.
# See the LICENSE file included in this directory.
#
# author: Jeff Ahrenholz <jeffrey.m.ahrenholz@boeing.com>
#
# Makefile for building corens3 components.
#
if WANT_PYTHON
SETUPPY = setup.py
SETUPPYFLAGS = -v
# Python package build
noinst_SCRIPTS = build
build:
$(PYTHON) $(SETUPPY) $(SETUPPYFLAGS) build
# Python package install
install-exec-hook:
$(PYTHON) $(SETUPPY) $(SETUPPYFLAGS) install \
--root=/$(DESTDIR) \
--prefix=$(prefix) \
--single-version-externally-managed \
--no-compile
# Python package uninstall
uninstall-hook:
-rm -rf core_ns3.egg-info
-rm -rf $(DESTDIR)/$(pythondir)/core_ns3-$(PACKAGE_VERSION)-py$(PYTHON_VERSION).egg-info
-rm -rf $(DESTDIR)/$(pythondir)/corens3
-rm -rf $(DESTDIR)/$(datadir)/corens3
# Python package cleanup
clean-local:
-rm -rf build
# because we include entire directories with EXTRA_DIST, we need to clean up
# the source control files
dist-hook:
-rm -rf `find $(distdir)/ -name '*.pyc'`
distclean-local:
-rm -rf core_ns3.egg-info
DISTCLEANFILES = Makefile.in
# files to include with distribution tarball
EXTRA_DIST = LICENSE $(SETUPPY) corens3 examples
endif
# endif WANT_PYTHON

9
ns3/corens3/__init__.py
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@ -1,9 +0,0 @@
"""
corens3
Python package containing CORE components for use
with the ns-3 simulator.
See http://code.google.com/p/coreemu/
for more information on CORE.
"""

550
ns3/corens3/obj.py
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@ -1,550 +0,0 @@
"""
ns3.py: defines classes for running emulations with ns-3 simulated networks.
"""
import logging
import subprocess
import threading
import time
import ns.core
import ns.internet
import ns.lte
import ns.mobility
import ns.network
import ns.tap_bridge
import ns.wifi
import ns.wimax
from core import constants
from core.emulator.enumerations import EventTypes
from core.emulator.enumerations import LinkTypes
from core.emulator.enumerations import NodeTypes
from core.utils import make_tuple
from core.location.mobility import WayPointMobility
from core.nodes.base import CoreNode, CoreNetworkBase
from core.emulator.session import Session
ns.core.GlobalValue.Bind(
"SimulatorImplementationType",
ns.core.StringValue("ns3::RealtimeSimulatorImpl")
)
ns.core.GlobalValue.Bind(
"ChecksumEnabled",
ns.core.BooleanValue("true")
)
class CoreNs3Node(CoreNode, ns.network.Node):
"""
The CoreNs3Node is both a CoreNode backed by a network namespace and
an ns-3 Node simulator object. When linked to simulated networks, the TunTap
device will be used.
"""
def __init__(self, *args, **kwds):
ns.network.Node.__init__(self)
# ns-3 ID starts at 0, CORE uses 1
_id = self.GetId() + 1
if '_id' not in kwds:
kwds['_id'] = _id
CoreNode.__init__(self, *args, **kwds)
def newnetif(self, net=None, addrlist=None, hwaddr=None, ifindex=None, ifname=None):
"""
Add a network interface. If we are attaching to a CoreNs3Net, this
will be a TunTap. Otherwise dispatch to CoreNode.newnetif().
"""
if not addrlist:
addrlist = []
if not isinstance(net, CoreNs3Net):
return CoreNode.newnetif(self, net, addrlist, hwaddr, ifindex, ifname)
ifindex = self.newtuntap(ifindex, ifname)
self.attachnet(ifindex, net)
netif = self.netif(ifindex)
netif.sethwaddr(hwaddr)
for addr in make_tuple(addrlist):
netif.addaddr(addr)
addrstr = netif.addrlist[0]
addr, mask = addrstr.split('/')
tap = net._tapdevs[netif]
tap.SetAttribute(
"IpAddress",
ns.network.Ipv4AddressValue(ns.network.Ipv4Address(addr))
)
tap.SetAttribute(
"Netmask",
ns.network.Ipv4MaskValue(ns.network.Ipv4Mask(f"/{mask}"))
)
ns.core.Simulator.Schedule(ns.core.Time("0"), netif.install)
return ifindex
def getns3position(self):
"""
Return the ns-3 (x, y, z) position of a node.
"""
try:
mm = self.GetObject(ns.mobility.MobilityModel.GetTypeId())
pos = mm.GetPosition()
return pos.x, pos.y, pos.z
except AttributeError:
self.warn("ns-3 mobility model not found")
return 0, 0, 0
def setns3position(self, x, y, z):
"""
Set the ns-3 (x, y, z) position of a node.
"""
try:
mm = self.GetObject(ns.mobility.MobilityModel.GetTypeId())
if z is None:
z = 0.0
mm.SetPosition(ns.core.Vector(x, y, z))
except AttributeError:
self.warn("ns-3 mobility model not found, not setting position")
class CoreNs3Net(CoreNetworkBase):
"""
The CoreNs3Net is a helper PyCoreNet object. Networks are represented
entirely in simulation with the TunTap device bridging the emulated and
simulated worlds.
"""
apitype = NodeTypes.WIRELESS_LAN.value
linktype = LinkTypes.WIRELESS.value
# icon used
type = "wlan"
def __init__(
self, session, _id=None, name=None, start=True, server=None
):
CoreNetworkBase.__init__(self, session, _id, name, start, server)
self.tapbridge = ns.tap_bridge.TapBridgeHelper()
self._ns3devs = {}
self._tapdevs = {}
def attach(self, netif):
"""
Invoked from netif.attach(). Create a TAP device using the TapBridge
object. Call getns3dev() to get model-specific device.
"""
self._netif[netif] = netif
self._linked[netif] = {}
ns3dev = self.getns3dev(netif.node)
tap = self.tapbridge.Install(netif.node, ns3dev)
tap.SetMode(ns.tap_bridge.TapBridge.CONFIGURE_LOCAL)
tap.SetAttribute(
"DeviceName",
ns.core.StringValue(netif.localname)
)
self._ns3devs[netif] = ns3dev
self._tapdevs[netif] = tap
def getns3dev(self, node):
"""
Implement depending on network helper. Install this network onto
the given node and return the device. Register the ns3 device into
self._ns3devs
"""
raise NotImplementedError
def findns3dev(self, node):
"""
Given a node, return the interface and ns3 device associated with
this network.
"""
for netif in node.netifs():
if netif in self._ns3devs:
return netif, self._ns3devs[netif]
return None, None
def shutdown(self):
"""
Session.shutdown() will invoke this.
"""
pass
def usecorepositions(self):
"""
Set position callbacks for interfaces on this net so the CORE GUI
can update the ns-3 node position when moved with the mouse.
"""
for netif in self.netifs():
netif.poshook = self.setns3position
def setns3position(self, netif, x, y, z):
logging.info("setns3position: %s (%s, %s, %s)", netif.node.name, x, y, z)
netif.node.setns3position(x, y, z)
class Ns3LteNet(CoreNs3Net):
def __init__(self, *args, **kwds):
"""
Uses a LteHelper to create an ns-3 based LTE network.
"""
CoreNs3Net.__init__(self, *args, **kwds)
self.lte = ns.lte.LteHelper()
# enhanced NodeB node list
self.enbnodes = []
self.dlsubchannels = None
self.ulsubchannels = None
def setsubchannels(self, downlink, uplink):
"""
Set the downlink/uplink subchannels, which are a list of ints.
These should be set prior to using CoreNs3Node.newnetif().
"""
self.dlsubchannels = downlink
self.ulsubchannels = uplink
def setnodeb(self, node):
"""
Mark the given node as a nodeb (base transceiver station)
"""
self.enbnodes.append(node)
def linknodeb(self, node, nodeb, mob, mobb):
"""
Register user equipment with a nodeb.
Optionally install mobility model while we have the ns-3 devs handy.
"""
_tmp, nodebdev = self.findns3dev(nodeb)
_tmp, dev = self.findns3dev(node)
if nodebdev is None or dev is None:
raise KeyError("ns-3 device for node not found")
self.lte.RegisterUeToTheEnb(dev, nodebdev)
if mob:
self.lte.AddMobility(dev.GetPhy(), mob)
if mobb:
self.lte.AddDownlinkChannelRealization(mobb, mob, dev.GetPhy())
def getns3dev(self, node):
"""
Get the ns3 NetDevice using the LteHelper.
"""
if node in self.enbnodes:
devtype = ns.lte.LteHelper.DEVICE_TYPE_ENODEB
else:
devtype = ns.lte.LteHelper.DEVICE_TYPE_USER_EQUIPMENT
nodes = ns.network.NodeContainer(node)
devs = self.lte.Install(nodes, devtype)
devs.Get(0).GetPhy().SetDownlinkSubChannels(self.dlsubchannels)
devs.Get(0).GetPhy().SetUplinkSubChannels(self.ulsubchannels)
return devs.Get(0)
def attach(self, netif):
"""
Invoked from netif.attach(). Create a TAP device using the TapBridge
object. Call getns3dev() to get model-specific device.
"""
self._netif[netif] = netif
self._linked[netif] = {}
ns3dev = self.getns3dev(netif.node)
self.tapbridge.SetAttribute("Mode", ns.core.StringValue("UseLocal"))
# self.tapbridge.SetAttribute("Mode",
# ns.core.IntegerValue(ns.tap_bridge.TapBridge.USE_LOCAL))
tap = self.tapbridge.Install(netif.node, ns3dev)
# tap.SetMode(ns.tap_bridge.TapBridge.USE_LOCAL)
logging.info("using TAP device %s for %s/%s", netif.localname, netif.node.name, netif.name)
subprocess.check_call(['tunctl', '-t', netif.localname, '-n'])
# check_call([IP_BIN, 'link', 'set', 'dev', netif.localname, \
# 'address', '%s' % netif.hwaddr])
subprocess.check_call([constants.IP_BIN, 'link', 'set', netif.localname, 'up'])
tap.SetAttribute("DeviceName", ns.core.StringValue(netif.localname))
self._ns3devs[netif] = ns3dev
self._tapdevs[netif] = tap
class Ns3WifiNet(CoreNs3Net):
def __init__(self, *args, **kwds):
"""
Uses a WifiHelper to create an ns-3 based Wifi network.
"""
rate = kwds.pop('rate', 'OfdmRate54Mbps')
CoreNs3Net.__init__(self, *args, **kwds)
self.wifi = ns.wifi.WifiHelper().Default()
self.wifi.SetStandard(ns.wifi.WIFI_PHY_STANDARD_80211a)
self.wifi.SetRemoteStationManager(
"ns3::ConstantRateWifiManager",
"DataMode",
ns.core.StringValue(rate),
"NonUnicastMode",
ns.core.StringValue(rate)
)
self.mac = ns.wifi.NqosWifiMacHelper.Default()
self.mac.SetType("ns3::AdhocWifiMac")
channel = ns.wifi.YansWifiChannelHelper.Default()
self.phy = ns.wifi.YansWifiPhyHelper.Default()
self.phy.SetChannel(channel.Create())
def getns3dev(self, node):
"""
Get the ns3 NetDevice using the WifiHelper.
"""
devs = self.wifi.Install(self.phy, self.mac, node)
return devs.Get(0)
class Ns3WimaxNet(CoreNs3Net):
def __init__(self, *args, **kwds):
CoreNs3Net.__init__(self, *args, **kwds)
self.wimax = ns.wimax.WimaxHelper()
self.scheduler = ns.wimax.WimaxHelper.SCHED_TYPE_SIMPLE
self.phy = ns.wimax.WimaxHelper.SIMPLE_PHY_TYPE_OFDM
# base station node list
self.bsnodes = []
def setbasestation(self, node):
self.bsnodes.append(node)
def getns3dev(self, node):
if node in self.bsnodes:
devtype = ns.wimax.WimaxHelper.DEVICE_TYPE_BASE_STATION
else:
devtype = ns.wimax.WimaxHelper.DEVICE_TYPE_SUBSCRIBER_STATION
nodes = ns.network.NodeContainer(node)
devs = self.wimax.Install(nodes, devtype, self.phy, self.scheduler)
if node not in self.bsnodes:
devs.Get(0).SetModulationType(ns.wimax.WimaxPhy.MODULATION_TYPE_QAM16_12)
# debug
self.wimax.EnableAscii("wimax-device-%s" % node.name, devs)
return devs.Get(0)
@staticmethod
def ipv4netifaddr(netif):
for addr in netif.addrlist:
if ':' in addr:
# skip ipv6
continue
ip = ns.network.Ipv4Address(addr.split('/')[0])
mask = ns.network.Ipv4Mask('/' + addr.split('/')[1])
return ip, mask
return None, None
def addflow(self, node1, node2, upclass, downclass):
"""
Add a Wimax service flow between two nodes.
"""
netif1, ns3dev1 = self.findns3dev(node1)
netif2, ns3dev2 = self.findns3dev(node2)
if not netif1 or not netif2:
raise ValueError("interface not found")
addr1, mask1 = self.ipv4netifaddr(netif1)
addr2, mask2 = self.ipv4netifaddr(netif2)
clargs1 = (addr1, mask1, addr2, mask2) + downclass
clargs2 = (addr2, mask2, addr1, mask1) + upclass
clrec1 = ns.wimax.IpcsClassifierRecord(*clargs1)
clrec2 = ns.wimax.IpcsClassifierRecord(*clargs2)
ns3dev1.AddServiceFlow(self.wimax.CreateServiceFlow(
ns.wimax.ServiceFlow.SF_DIRECTION_DOWN,
ns.wimax.ServiceFlow.SF_TYPE_RTPS, clrec1)
)
ns3dev1.AddServiceFlow(self.wimax.CreateServiceFlow(
ns.wimax.ServiceFlow.SF_DIRECTION_UP,
ns.wimax.ServiceFlow.SF_TYPE_RTPS, clrec2)
)
ns3dev2.AddServiceFlow(self.wimax.CreateServiceFlow(
ns.wimax.ServiceFlow.SF_DIRECTION_DOWN,
ns.wimax.ServiceFlow.SF_TYPE_RTPS, clrec2)
)
ns3dev2.AddServiceFlow(self.wimax.CreateServiceFlow(
ns.wimax.ServiceFlow.SF_DIRECTION_UP,
ns.wimax.ServiceFlow.SF_TYPE_RTPS, clrec1)
)
class Ns3Session(Session):
"""
A Session that starts an ns-3 simulation thread.
"""
def __init__(self, _id, persistent=False, duration=600):
self.duration = duration
self.nodes = ns.network.NodeContainer()
self.mobhelper = ns.mobility.MobilityHelper()
Session.__init__(self, _id)
def run(self, vis=False):
"""
Run the ns-3 simulation and return the simulator thread.
"""
def runthread():
ns.core.Simulator.Stop(ns.core.Seconds(self.duration))
logging.info("running ns-3 simulation for %d seconds", self.duration)
if vis:
try:
import visualizer
except ImportError:
logging.exception("visualizer is not available")
ns.core.Simulator.Run()
else:
visualizer.start()
else:
ns.core.Simulator.Run()
# self.evq.run() # event queue may have WayPointMobility events
self.set_state(EventTypes.RUNTIME_STATE, send_event=True)
t = threading.Thread(target=runthread)
t.daemon = True
t.start()
return t
def shutdown(self):
# TODO: the following line tends to segfault ns-3 (and therefore core-daemon)
ns.core.Simulator.Destroy()
Session.shutdown(self)
def addnode(self, name):
"""
A convenience helper for Session.addobj(), for adding CoreNs3Nodes
to this session. Keeps a NodeContainer for later use.
"""
n = self.create_node(cls=CoreNs3Node, name=name)
self.nodes.Add(n)
return n
def setupconstantmobility(self):
"""
Install a ConstantPositionMobilityModel.
"""
palloc = ns.mobility.ListPositionAllocator()
for i in xrange(self.nodes.GetN()):
(x, y, z) = ((100.0 * i) + 50, 200.0, 0.0)
palloc.Add(ns.core.Vector(x, y, z))
node = self.nodes.Get(i)
node.position.set(x, y, z)
self.mobhelper.SetPositionAllocator(palloc)
self.mobhelper.SetMobilityModel("ns3::ConstantPositionMobilityModel")
self.mobhelper.Install(self.nodes)
def setuprandomwalkmobility(self, bounds, time=10, speed=25.0):
"""
Set up the random walk mobility model within a bounding box.
- bounds is the max (x, y, z) boundary
- time is the number of seconds to maintain the current speed
and direction
- speed is the maximum speed, with node speed randomly chosen
from [0, speed]
"""
x, y, z = map(float, bounds)
self.mobhelper.SetPositionAllocator(
"ns3::RandomBoxPositionAllocator",
"X",
ns.core.StringValue("ns3::UniformRandomVariable[Min=0|Max=%s]" % x),
"Y",
ns.core.StringValue("ns3::UniformRandomVariable[Min=0|Max=%s]" % y),
"Z",
ns.core.StringValue("ns3::UniformRandomVariable[Min=0|Max=%s]" % z)
)
self.mobhelper.SetMobilityModel(
"ns3::RandomWalk2dMobilityModel",
"Mode", ns.core.StringValue("Time"),
"Time", ns.core.StringValue("%ss" % time),
"Speed",
ns.core.StringValue("ns3::UniformRandomVariable[Min=0|Max=%s]" % speed),
"Bounds", ns.core.StringValue("0|%s|0|%s" % (x, y))
)
self.mobhelper.Install(self.nodes)
def startns3mobility(self, refresh_ms=300):
"""
Start a thread that updates CORE nodes based on their ns-3
positions.
"""
self.set_state(EventTypes.INSTANTIATION_STATE)
self.mobilitythread = threading.Thread(
target=self.ns3mobilitythread,
args=(refresh_ms,))
self.mobilitythread.daemon = True
self.mobilitythread.start()
def ns3mobilitythread(self, refresh_ms):
"""
Thread target that updates CORE nodes every refresh_ms based on
their ns-3 positions.
"""
valid_states = (
EventTypes.RUNTIME_STATE.value,
EventTypes.INSTANTIATION_STATE.value
)
while self.state in valid_states:
for i in xrange(self.nodes.GetN()):
node = self.nodes.Get(i)
x, y, z = node.getns3position()
if (x, y, z) == node.position.get():
continue
# from WayPointMobility.setnodeposition(node, x, y, z)
node.position.set(x, y, z)
node_data = node.data(0)
self.broadcast_node(node_data)
self.sdt.updatenode(node.id, flags=0, x=x, y=y, z=z)
time.sleep(0.001 * refresh_ms)
def setupmobilitytracing(self, net, filename, nodes):
"""
Start a tracing thread using the ASCII output from the ns3
mobility helper.
"""
net.mobility = WayPointMobility(session=self, _id=net.id)
net.mobility.setendtime()
net.mobility.refresh_ms = 300
net.mobility.empty_queue_stop = False
of = ns.network.OutputStreamWrapper(filename, filemode=0o777)
self.mobhelper.EnableAsciiAll(of)
self.mobilitytracethread = threading.Thread(
target=self.mobilitytrace,
args=(net, filename, nodes)
)
self.mobilitytracethread.daemon = True
self.mobilitytracethread.start()
def mobilitytrace(self, net, filename, nodes, verbose):
nodemap = {}
# move nodes to initial positions
for node in nodes:
x, y, z = node.getns3position()
net.mobility.setnodeposition(node, x, y, z)
nodemap[node.GetId()] = node
logging.info("mobilitytrace opening '%s'", filename)
f = None
try:
f = open(filename)
f.seek(0, 2)
sleep = 0.001
kickstart = True
while True:
if self.state != EventTypes.RUNTIME_STATE.value:
break
line = f.readline()
if not line:
time.sleep(sleep)
if sleep < 1.0:
sleep += 0.001
continue
sleep = 0.001
items = dict(x.split("=") for x in line.split())
logging.info("trace: %s %s %s", items['node'], items['pos'], items['vel'])
x, y, z = map(float, items['pos'].split(':'))
vel = map(float, items['vel'].split(':'))
node = nodemap[int(items['node'])]
net.mobility.addwaypoint(time=0, nodenum=node.id, x=x, y=y, z=z, speed=vel)
if kickstart:
kickstart = False
self.event_loop.add_event(0, net.mobility.start)
self.event_loop.run()
else:
if net.mobility.state != net.mobility.STATE_RUNNING:
net.mobility.state = net.mobility.STATE_RUNNING
self.event_loop.add_event(0, net.mobility.runround)
except IOError:
logging.exception("mobilitytrace error opening: %s", filename)
finally:
if f:
f.close()

94
ns3/examples/ns3lte.py
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@ -1,94 +0,0 @@
"""
ns3lte.py - This script demonstrates using CORE with the ns-3 LTE model.
*** Note that this script is not currently functional, see notes below. ***
- issues connecting TapBridge with LteNetDevice
"""
import logging
import optparse
import sys
import netaddr
import ns.core
import ns.mobility
from corens3.obj import Ns3LteNet
from corens3.obj import Ns3Session
def ltesession(opt):
"""
Run a test LTE session.
"""
session = Ns3Session(1, persistent=True, duration=opt.duration)
lte = session.create_node(cls=Ns3LteNet, name="wlan1")
lte.setsubchannels(range(25), range(50, 100))
if opt.verbose:
ascii_helper = ns.network.AsciiTraceHelper()
stream = ascii_helper.CreateFileStream('/tmp/ns3lte.tr')
lte.lte.EnableAsciiAll(stream)
prefix = netaddr.IPNetwork("10.0.0.0/16")
mobb = None
nodes = []
for i in range(1, opt.numnodes + 1):
node = session.addnode(name="n%d" % i)
mob = ns.mobility.ConstantPositionMobilityModel()
mob.SetPosition(ns.core.Vector3D(10.0 * i, 0.0, 0.0))
if i == 1:
# first node is nodeb
lte.setnodeb(node)
mobb = mob
node.newnetif(lte, ["%s/%s" % (prefix[i], prefix.prefixlen)])
nodes.append(node)
if i == 1:
_tmp, ns3dev = lte.findns3dev(node)
lte.lte.AddMobility(ns3dev.GetPhy(), mob)
if i > 1:
lte.linknodeb(node, nodes[0], mob, mobb)
session.thread = session.run(vis=opt.visualize)
return session
def main():
"""
Main routine when running from command-line.
"""
usagestr = "usage: %prog [-h] [options] [args]"
parser = optparse.OptionParser(usage=usagestr)
parser.set_defaults(numnodes=4, duration=600, verbose=False, visualize=False)
parser.add_option("-d", "--duration", dest="duration", type=int,
help="number of seconds to run the simulation")
parser.add_option("-n", "--numnodes", dest="numnodes", type=int,
help="number of nodes")
parser.add_option("-z", "--visualize", dest="visualize",
action="store_true", help="enable visualizer")
parser.add_option("-v", "--verbose", dest="verbose",
action="store_true", help="be more verbose")
def usage(msg=None, err=0):
sys.stdout.write("\n")
if msg:
sys.stdout.write(msg + "\n\n")
parser.print_help()
sys.exit(err)
opt, args = parser.parse_args()
if opt.numnodes < 2:
usage("invalid numnodes: %s" % opt.numnodes)
for a in args:
logging.warn("ignoring command line argument: '%s'", a)
return ltesession(opt)
def cleanup():
logging.info("shutting down session")
session.shutdown()
if __name__ == "__main__":
session = main()

111
ns3/examples/ns3wifi.py
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@ -1,111 +0,0 @@
"""
ns3wifi.py - This script demonstrates using CORE with the ns-3 Wifi model.
How to run this:
pushd ~/ns-allinone-3.16/ns-3.16
sudo ./waf shell
popd
python -i ns3wifi.py
To run with the CORE GUI:
pushd ~/ns-allinone-3.16/ns-3.16
sudo ./waf shell
core-daemon
# in another terminal
core-daemon -e ./ns3wifi.py
# in a third terminal
core-gui
# now select the running session
"""
import logging
import optparse
import sys
import netaddr
import ns.core
from corens3.obj import Ns3Session
from corens3.obj import Ns3WifiNet
def add_to_server(session):
"""
Add this session to the server's list if this script is executed from
the core-daemon server.
"""
global server
try:
server.add_session(session)
return True
except NameError:
return False
def wifisession(opt):
"""
Run a test wifi session.
"""
session = Ns3Session(1, persistent=True, duration=opt.duration)
session.name = "ns3wifi"
session.filename = session.name + ".py"
session.node_count = str(opt.numnodes + 1)
add_to_server(session)
wifi = session.create_node(cls=Ns3WifiNet, name="wlan1")
wifi.setposition(30, 30, 0)
wifi.phy.Set("RxGain", ns.core.DoubleValue(18.0))
prefix = netaddr.IPNetwork("10.0.0.0/16")
nodes = []
for i in range(1, opt.numnodes + 1):
node = session.addnode(name="n%d" % i)
node.newnetif(wifi, ["%s/%s" % (prefix[i], prefix.prefixlen)])
nodes.append(node)
session.setupconstantmobility()
wifi.usecorepositions()
# PHY tracing
# wifi.phy.EnableAsciiAll("ns3wifi")
session.thread = session.run(vis=False)
return session
def main():
"""
Main routine when running from command-line.
"""
usagestr = "usage: %prog [-h] [options] [args]"
parser = optparse.OptionParser(usage=usagestr)
parser.set_defaults(numnodes=10, duration=600, verbose=False)
parser.add_option("-d", "--duration", dest="duration", type=int,
help="number of seconds to run the simulation")
parser.add_option("-n", "--numnodes", dest="numnodes", type=int,
help="number of nodes")
parser.add_option("-v", "--verbose", dest="verbose",
action="store_true", help="be more verbose")
def usage(msg=None, err=0):
sys.stdout.write("\n")
if msg:
sys.stdout.write(msg + "\n\n")
parser.print_help()
sys.exit(err)
opt, args = parser.parse_args()
if opt.numnodes < 2:
usage("invalid numnodes: %s" % opt.numnodes)
for a in args:
logging.warn("ignoring command line argument: '%s'", a)
return wifisession(opt)
if __name__ == "__main__" or __name__ == "__builtin__":
session = main()
logging.info("\nsession =%s", session)

116
ns3/examples/ns3wifirandomwalk.py
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@ -1,116 +0,0 @@
"""
ns3wifirandomwalk.py - This script demonstrates using CORE with the ns-3 Wifi
model and random walk mobility.
Patterned after the ns-3 example 'main-random-walk.cc'.
How to run this:
pushd ~/ns-allinone-3.16/ns-3.16
sudo ./waf shell
popd
python -i ns3wifirandomwalk.py
"""
import logging
import optparse
import sys
from builtins import range
import netaddr
import ns.core
import ns.network
from corens3.obj import Ns3Session
from corens3.obj import Ns3WifiNet
def add_to_server(session):
"""
Add this session to the server's list if this script is executed from
the core-daemon server.
"""
global server
try:
server.add_session(session)
return True
except NameError:
return False
def wifisession(opt):
"""
Run a random walk wifi session.
"""
session = Ns3Session(1, persistent=True, duration=opt.duration)
session.name = "ns3wifirandomwalk"
session.filename = session.name + ".py"
session.node_count = str(opt.numnodes + 1)
add_to_server(session)
wifi = session.create_node(cls=Ns3WifiNet, name="wlan1", rate="OfdmRate12Mbps")
wifi.setposition(30, 30, 0)
# for improved connectivity
wifi.phy.Set("RxGain", ns.core.DoubleValue(18.0))
prefix = netaddr.IPNetwork("10.0.0.0/16")
services_str = "zebra|OSPFv3MDR|IPForward"
nodes = []
for i in range(1, opt.numnodes + 1):
node = session.addnode(name="n%d" % i)
node.newnetif(wifi, ["%s/%s" % (prefix[i], prefix.prefixlen)])
nodes.append(node)
session.services.add_services(node, "router", services_str.split("|"))
session.services.boot_services(node)
session.setuprandomwalkmobility(bounds=(1000.0, 750.0, 0))
# PHY tracing
# wifi.phy.EnableAsciiAll("ns3wifirandomwalk")
# mobility tracing
# session.setupmobilitytracing(wifi, "ns3wifirandomwalk.mob.tr",
# nodes, verbose=True)
session.startns3mobility(refresh_ms=150)
# start simulation
# session.instantiate() ?
session.thread = session.run(vis=opt.viz)
return session
def main():
"""
Main routine when running from command-line.
"""
usagestr = "usage: %prog [-h] [options] [args]"
parser = optparse.OptionParser(usage=usagestr)
parser.set_defaults(numnodes=5, duration=600, verbose=False, viz=False)
opt = {'numnodes': 5, 'duration': 600, 'verbose': False, 'viz': False}
parser.add_option("-d", "--duration", dest="duration", type=int,
help="number of seconds to run the simulation")
parser.add_option("-n", "--numnodes", dest="numnodes", type=int,
help="number of nodes")
parser.add_option("-v", "--verbose", dest="verbose",
action="store_true", help="be more verbose")
parser.add_option("-V", "--visualize", dest="viz",
action="store_true", help="enable PyViz ns-3 visualizer")
def usage(msg=None, err=0):
sys.stdout.write("\n")
if msg:
sys.stdout.write(msg + "\n\n")
parser.print_help()
sys.exit(err)
opt, args = parser.parse_args()
if opt.numnodes < 2:
usage("invalid numnodes: %s" % opt.numnodes)
for a in args:
logging.warn("ignoring command line argument: '%s'", a)
return wifisession(opt)
if __name__ == "__main__" or __name__ == "__builtin__":
session = main()
logging.info("\nsession =%s", session)

83
ns3/examples/ns3wimax.py
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@ -1,83 +0,0 @@
"""
ns3wimax.py - This script demonstrates using CORE with the ns-3 Wimax model.
*** Note that this script is not currently functional, see notes below. ***
Current issues:
- large amount of base station chatter; huge trace files, 70% CPU usage
- PCAP files unreadable
- base station causes segfault if it sends packet; due to missing service flows
(but AddFlow() is not available for bs devices)
- no packets are sent between nodes - no connection?
"""
import logging
import optparse
import sys
from builtins import range
import netaddr
from corens3.obj import Ns3Session
from corens3.obj import Ns3WimaxNet
def wimaxsession(opt):
"""
Run a test wimax session.
"""
session = Ns3Session(1, persistent=True, duration=opt.duration)
wimax = session.create_node(cls=Ns3WimaxNet, name="wlan1")
# wimax.wimax.EnableLogComponents()
prefix = netaddr.IPNetwork("10.0.0.0/16")
# create one classifier for ICMP (protocol 1) traffic
# src port low/high, dst port low/high, protocol, priority
# classifier = (0, 65000, 0, 65000, 1, 1)
classifier = (0, 65000, 0, 65000, 17, 1)
nodes = []
for i in range(1, opt.numnodes + 1):
node = session.addnode(name="n%d" % i)
if i == 1:
wimax.setbasestation(node)
node.newnetif(wimax, ["%s/%s" % (prefix[i], prefix.prefixlen)])
if i > 2:
wimax.addflow(nodes[-1], node, classifier, classifier)
nodes.append(node)
session.setupconstantmobility()
session.thread = session.run(vis=False)
return session
def main():
"""
Main routine when running from command-line.
"""
usagestr = "usage: %prog [-h] [options] [args]"
parser = optparse.OptionParser(usage=usagestr)
parser.set_defaults(numnodes=3, duration=600, verbose=False)
parser.add_option("-d", "--duration", dest="duration", type=int,
help="number of seconds to run the simulation")
parser.add_option("-n", "--numnodes", dest="numnodes", type=int,
help="number of nodes")
parser.add_option("-v", "--verbose", dest="verbose",
action="store_true", help="be more verbose")
def usage(msg=None, err=0):
sys.stdout.write("\n")
if msg:
sys.stdout.write(msg + "\n\n")
parser.print_help()
sys.exit(err)
opt, args = parser.parse_args()
if opt.numnodes < 2:
usage("invalid numnodes: %s" % opt.numnodes)
for a in args:
logging.warn("ignoring command line argument: '%s'", a)
return wimaxsession(opt)
if __name__ == "__main__":
session = main()

19
ns3/setup.py.in
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@ -1,19 +0,0 @@
import glob
from setuptools import setup
_EXAMPLES_DIR = "share/corens3/examples"
setup(
name="core-ns3",
version="@PACKAGE_VERSION@",
packages=[
"corens3",
],
data_files=[(_EXAMPLES_DIR, glob.glob("examples/*"))],
description="Python ns-3 components of CORE",
url="https://github.com/coreemu/core",
author="Boeing Research & Technology",
license="GPLv2",
long_description="Python scripts and modules for building virtual simulated networks."
)