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200 lines (164 loc) · 9.62 KB
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import socket
from time import sleep
import mininet.node
import mininet.link
from mininet.log import info
from mininet.util import moveIntf
from mininet.cluster.link import RemoteLink
class WIFI (object):
def __init__ (self, enableQos=True, rootSwitch=None, agentIP=None, agentPort=53724):
self.rootSwitch = rootSwitch
self.startAgent ()
self.csock = None
while self.csock == None:
self.csock = self.connectAgent (agentIP, agentPort)
self.tapBridgeIntfs = []
self.csock.sendall ('GlobalValue.Bind ("SimulatorImplementationType", StringValue ("ns3::RealtimeSimulatorImpl"))\n')
self.csock.sendall ('GlobalValue.Bind ("ChecksumEnabled", BooleanValue (True))\n')
self.csock.sendall ('wifihelper = WifiHelper.Default()\n')
self.csock.sendall ('wifihelper.SetStandard (WIFI_PHY_STANDARD_80211g)\n')
self.csock.sendall ('phyhelper = YansWifiPhyHelper.Default()\n')
self.csock.sendall ('channelhelper = YansWifiChannelHelper.Default()\n')
self.csock.sendall ('phyhelper.SetChannel (channelhelper.Create())\n')
if enableQos:
self.csock.sendall ('machelper = QosWifiMacHelper.Default()\n')
else:
self.csock.sendall ('machelper = NqosWifiMacHelper.Default()\n')
self.csock.sendall ('mobilityhelper = MobilityHelper ()\n')
self.csock.sendall ('def run ():\n')
self.csock.sendall (' Simulator.Stop (Seconds (86400))\n')
self.csock.sendall (' Simulator.Run ()\n')
self.csock.sendall ('nsThread = Thread (target = run)\n')
self.csock.sendall ('tapBridges = []\n')
def startAgent (self):
self.rootSwitch.cmd ("/usr/bin/opennet-agent.py start")
def stopAgent (self):
self.rootSwitch.rcmd ("/usr/bin/opennet-agent.py stop")
def connectAgent (self, ip, port):
csock = socket.socket (socket.AF_INET, socket.SOCK_STREAM)
try:
info ('*** Connecting to opennet-agent... ')
csock.connect ((ip, port))
except socket.error, exc:
info ('Failed\n')
return None
else:
info ('Successed\n')
return csock
def start (self):
self.csock.sendall ('if nsThread.isAlive ():\n csock.sendall ("True")\nelse:\n csock.sendall ("False")\n')
while True:
data = self.csock.recv (1024)
if data == "True":
info ('*** NS-3 thread is already running\n')
return
elif data == "False":
info ('*** Starting NS-3 thread\n')
break
self.csock.sendall ('nsThread.start ()\n')
info ('*** moveIntoNamespace\n')
for tbIntf in self.tapBridgeIntfs:
info ('{0} '.format (tbIntf.name))
tbIntf.moveIntoNamespace ()
info ('\n')
def stop (self):
self.csock.sendall ('Simulator.Stop (Seconds (1))\n')
self.csock.sendall ('while nsThread.isAlive ():\n sleep (0.1)\n')
def clear (self):
self.csock.sendall ('Simulator.Destroy ()\n')
self.csock.sendall ('exit ()\n')
self.csock.close ()
self.stopAgent ()
def addAdhoc (self, node, mobilityType="ns3::ConstantPositionMobilityModel", position=None, velocity=None):
self.csock.sendall ('machelper.SetType ("ns3::AdhocWifiMac")\n')
self.csock.sendall ('nsNode = Node ()\n')
self.csock.sendall ('mobilityhelper.SetMobilityModel ("{0}")\n'.format (mobilityType))
self.csock.sendall ('mobilityhelper.Install (nsNode)\n')
if position != None:
self.csock.sendall ('mm = nsNode.GetObject(MobilityModel.GetTypeId())\n')
self.csock.sendall ('mm.SetPosition(Vector({0}, {1}, {2}))\n'.format (position[0], position[1], position[2]))
if velocity != None and mobilityType == "ns3::ConstantVelocityMobilityModel":
self.csock.sendall ('mm = nsNode.GetObject(MobilityModel.GetTypeId())\n')
self.csock.sendall ('mm.SetVelocity(Vector({0}, {1}, {2}))\n'.format (velocity[0], velocity[1], velocity[2]))
self.csock.sendall ('wifiDev = wifihelper.Install (phyhelper, machelper, nsNode).Get(0)\n')
port = node.newPort ()
intfName = "{0}-eth{1}".format (node.name, port)
tbIntf = self.TapBridgeIntf (intfName, node, port, self.rootSwitch, self.csock)
self.tapBridgeIntfs.append (tbIntf)
def addAP (self, node, channelNumber=1, ssid="default-ssid", mobilityType="ns3::ConstantPositionMobilityModel", position=None, velocity=None):
self.csock.sendall ('machelper.SetType ("ns3::ApWifiMac", "Ssid", SsidValue (Ssid("{0}")), "BeaconGeneration", BooleanValue(True), "BeaconInterval", TimeValue(Seconds(2.5)))\n'.format (ssid))
self.csock.sendall ('phyhelper.Set ("ChannelNumber", UintegerValue ({0}))\n'.format (channelNumber))
self.csock.sendall ('nsNode = Node ()\n')
self.csock.sendall ('mobilityhelper.SetMobilityModel ("{0}")\n'.format (mobilityType))
self.csock.sendall ('mobilityhelper.Install (nsNode)\n')
if position != None:
self.csock.sendall ('mm = nsNode.GetObject(MobilityModel.GetTypeId())\n')
self.csock.sendall ('mm.SetPosition(Vector({0}, {1}, {2}))\n'.format (position[0], position[1], position[2]))
if velocity != None and mobilityType == "ns3::ConstantVelocityMobilityModel":
self.csock.sendall ('mm = nsNode.GetObject(MobilityModel.GetTypeId())\n')
self.csock.sendall ('mm.SetVelocity(Vector({0}, {1}, {2}))\n'.format (velocity[0], velocity[1], velocity[2]))
self.csock.sendall ('wifiDev = wifihelper.Install (phyhelper, machelper, nsNode).Get(0)\n')
port = node.newPort ()
intfName = "{0}-eth{1}".format (node.name, port)
tbIntf = self.TapBridgeIntf (intfName, node, port, self.rootSwitch, self.csock)
self.tapBridgeIntfs.append (tbIntf)
def addSta (self, node, channelNumber=1, ssid="default-ssid", mobilityType="ns3::ConstantPositionMobilityModel", position=None, velocity=None):
self.csock.sendall ('machelper.SetType ("ns3::StaWifiMac", "Ssid", SsidValue (Ssid("{0}")), "ScanType", EnumValue (StaWifiMac.ACTIVE))\n'.format (ssid))
self.csock.sendall ('phyhelper.Set ("ChannelNumber", UintegerValue ({0}))\n'.format (channelNumber))
self.csock.sendall ('nsNode = Node ()\n')
self.csock.sendall ('mobilityhelper.SetMobilityModel ("{0}")\n'.format (mobilityType))
self.csock.sendall ('mobilityhelper.Install (nsNode)\n')
if position != None:
self.csock.sendall ('mm = nsNode.GetObject(MobilityModel.GetTypeId())\n')
self.csock.sendall ('mm.SetPosition(Vector({0}, {1}, {2}))\n'.format (position[0], position[1], position[2]))
if velocity != None and mobilityType == "ns3::ConstantVelocityMobilityModel":
self.csock.sendall ('mm = nsNode.GetObject(MobilityModel.GetTypeId())\n')
self.csock.sendall ('mm.SetVelocity(Vector({0}, {1}, {2}))\n'.format (velocity[0], velocity[1], velocity[2]))
self.csock.sendall ('wifiDev = wifihelper.Install (phyhelper, machelper, nsNode).Get(0)\n')
port = node.newPort ()
intfName = "{0}-eth{1}".format (node.name, port)
tbIntf = self.TapBridgeIntf (intfName, node, port, self.rootSwitch, self.csock)
self.tapBridgeIntfs.append (tbIntf)
class TapBridgeIntf (mininet.link.Intf):
"""
TapBridgeIntf is a Linux TAP interface, which is bridged with an NS-3 NetDevice.
"""
def __init__ (self, name=None, node=None, port=None, localNode=None, csock=None, **params):
self.name = name
self.node = node
self.localNode = localNode
self.csock = csock
self.createTap (self.name)
self.delayedMove = True
if node.inNamespace == True:
self.inRightNamespace = False
else:
self.inRightNamespace = True
mininet.link.Intf.__init__ (self, name, node, port, **params)
self.csock.sendall ('nsDevice = wifiDev\n')
self.csock.sendall ('tapBridgeHelper = TapBridgeHelper ()\n')
self.csock.sendall ('tapBridgeHelper.SetAttribute ("Mode", StringValue ("UseLocal"))\n')
self.csock.sendall ('tapBridgeHelper.SetAttribute ("DeviceName", StringValue ("{0}"))\n'.format (self.name))
self.csock.sendall ('macAddress = Mac48Address.Allocate ()\n')
self.csock.sendall ('tapBridgeHelper.SetAttribute ("MacAddress", Mac48AddressValue (macAddress))\n')
self.csock.sendall ('tb = tapBridgeHelper.Install (nsNode, nsDevice)\n')
self.csock.sendall ('tapBridges.append (tb)\n')
def moveIntoNamespace (self):
while True:
self.csock.sendall ('if tapBridges[-1].IsLinkUp():\n csock.sendall ("True")\nelse:\n csock.sendall ("False")\n')
data = self.csock.recv (1024)
if data == "True":
break
else:
sleep (0.1)
RemoteLink.moveIntf (self.name, self.node)
self.node.cmd ('ip link set dev {0} up'.format (self.name))
self.node.cmd ('ip addr add dev {0} {1}/{2}'.format (self.name, self.ip, self.prefixLen))
def cmd (self, *args, **kwargs):
if self.inRightNamespace == True:
return self.node.cmd (*args, **kwargs)
else:
return self.localNode.cmd (*args, **kwargs)
def createTap (self, name):
self.node.cmd ('ip tuntap add {0} mode tap'.format (name))
self.node.cmd ('ip link set dev {0} netns 1'.format (name))