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mptest_woTag.cc
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mptest_woTag.cc
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* NaturalShare policy, test Mbox with 2 senders & 1 receiver
* MP policy realized in pktArrival of right router
*/
#include <fstream>
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/internet-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/applications-module.h"
//packet tag head files
#include "ns3/tag.h"
#include "ns3/packet.h"
#include "ns3/uinteger.h"
//head files
#include "ns3/point-to-point-layout-module.h"
#include "ns3/rtt-estimator.h"
#include "ns3/nstime.h"
#include "ns3/flow-monitor-helper.h"
#include "ns3/random-variable-stream.h"
#include "ns3/udp-socket-factory.h"
#include "ns3/tcp-socket-factory.h"
#include "ns3/ipv4-flow-classifier.h"
#include "ns3/point-to-point-net-device.h"
#include <iostream>
#include <iomanip>
#include <vector>
#include <map>
#include <fstream>
#include <cstdio>
#include <ctime>
#include <locale>
#include <time.h>
#include <stdlib.h>
using namespace std;
using namespace ns3;
/*
* Gloable Variable
*/
#define ARRAY_SIZE 1000
std::string attackerDataRate = "30Mbps";
std::string clientDataRate = "0.1Mbps";
double period = 0.5; // will it influence the cwnd / rwnd value?
double duration = period / 1;
uint16_t port = 5001;
uint16_t attackerport = 5003;
uint16_t mmtu = 1599;
std::ofstream queueFile ("queueLength.dat", std::ios::out);
//std::ofstream congestionUsageFile ("congestionUsage.dat", std::ios::out);
//std::ofstream normalUsageFile ("normalUsage.dat", std::ios::out);
std::ofstream droprateFile ("dropRate.dat", std::ios::out);
//std::ofstream rawdropFile ("rawDropRate.dat", std::ios::out);
Ptr<Node> router;
Ptr<PointToPointNetDevice> p2pDevice;
// uint32_t nLeaf = 4;
// uint32_t nAttacker = 4;
// int size = nLeaf + nAttacker;
uint32_t nLeft = 2; // # receiver
uint32_t nRight = 2; // # senders
double detectPeriod = 0.0;
uint32_t lock = 0;
uint32_t dropArray[ARRAY_SIZE];
//uint32_t dropTag[5000];
uint32_t congWin[ARRAY_SIZE];
//uint32_t verifyWin[5000]; // representing the verified capabilities
//uint32_t tagWin[5000]; // representing the tagged packets
uint32_t receiveWin[ARRAY_SIZE]; // representing the received packets (usage) /// rwnd: RX's largest # packets it can receive without ACK, actual # packets = min (rwnd, cwnd)
uint16_t enableEarlyDrop = 1;
uint32_t bootStrap = 0;
// Used for measuring real time loss rate
uint32_t realtimePeriod = 0;
uint32_t realtimePacketFeedback = 50;
double realtimeLossRate = 0;
uint32_t realtimeDrop = 0;
double lossRateArray[ARRAY_SIZE];
// Used for crossing traffic
uint32_t nCrossing = 0;
// parameters
double lossRateThreshold = 0.05;
double beta = 0.8;
// for fairshare
double total_capacity = 0;
// for RTT record
// vector< vector<double> > rtt;
vector<string> fileName;
double tPkt[ARRAY_SIZE];
int txCnt[ARRAY_SIZE];
int rxCnt[ARRAY_SIZE];
double recvData[ARRAY_SIZE]; // record tcp data for rate calculation
double recvBit[ARRAY_SIZE]; // record p2p packet size
bool isPrintHeader;
bool isPrintTx;
bool isPrintLeft;
bool isPrintRx;
bool firstRtt = true;
// log component definition
NS_LOG_COMPONENT_DEFINE ("TestForMiddlePolice");
// for recording the congestion window
std::ofstream windowFile ("natural_flat_window.data", std::ios::out);
std::ofstream lossRateFile ("natural_flat_LR.data", std::ios::out);
// tool function
vector<int> getPktSizes(Ptr <const Packet> p) // get [p2p size, ip size, tcp size, data size]
{
Ptr<Packet> pktCopy = p->Copy();
vector<int> res;
PppHeader pppH;
Ipv4Header ipH;
TcpHeader tcpH;
res.push_back((int)pktCopy->GetSize());
pktCopy->RemoveHeader(pppH);
res.push_back((int)pktCopy->GetSize());
pktCopy->RemoveHeader(ipH);
res.push_back((int)pktCopy->GetSize());
pktCopy->RemoveHeader(tcpH);
res.push_back((int)pktCopy->GetSize());
return res;
}
uint32_t getTcpSize(Ptr <const Packet> p)
{
Ptr<Packet> pktCopy = p->Copy();
PppHeader pppH;
Ipv4Header ipH;
TcpHeader tcpH;
pktCopy->RemoveHeader(pppH);
pktCopy->RemoveHeader(ipH);
pktCopy->RemoveHeader(tcpH);
return pktCopy->GetSize();
}
string
printPkt(Ptr <const Packet> p)
{
Ptr<Packet> pktCopy = p->Copy();
stringstream ss;
pktCopy->Print(ss);
return ss.str();
}
string
logIpv4Header (Ptr<const Packet> p)
{
Ptr<Packet> pktCopy = p->Copy ();
PppHeader pppH;
Ipv4Header ipH;
pktCopy->RemoveHeader (pppH);
pktCopy->PeekHeader (ipH); /// need to know the exact structure of header
stringstream ss;
ipH.Print (ss);
return ss.str ();
}
string
logPppHeader (Ptr<const Packet> p)
{
Ptr<Packet> pktCopy = p->Copy ();
PppHeader pppH;
pktCopy->PeekHeader (pppH);
stringstream ss;
pppH.Print (ss);
return ss.str ();
}
string
logTcpHeader (Ptr<const Packet> p)
{
Ptr<Packet> pktCopy = p->Copy ();
PppHeader pppH;
Ipv4Header ipH;
TcpHeader tcpH;
pktCopy->RemoveHeader (pppH);
pktCopy->RemoveHeader (ipH);
pktCopy->PeekHeader (tcpH);
stringstream ss;
tcpH.Print (ss);
return ss.str ();
}
string
logPktIpv4Address (Ptr<const Packet> p)
{
Ptr<Packet> pktCopy = p->Copy ();
PppHeader pppH;
Ipv4Header ipH;
pktCopy->RemoveHeader (pppH);
pktCopy->PeekHeader (ipH);
stringstream ss;
ipH.GetSource ().Print (ss);
ss << " > ";
ipH.GetDestination ().Print (ss);
return ss.str ();
}
//=========================================================================//
//=========================Begin of TAG definition=========================//
//=========================================================================//
class MyTag : public Tag
{
public:
static TypeId GetTypeId (void);
virtual TypeId GetInstanceTypeId (void) const;
virtual uint32_t GetSerializedSize (void) const;
virtual void Serialize (TagBuffer i) const;
virtual void Deserialize (TagBuffer i);
virtual void Print (std::ostream &os) const;
// these are our accessors to our tag structure
void SetSimpleValue (uint32_t value);
uint32_t GetSimpleValue (void) const;
private:
uint32_t m_simpleValue;
};
TypeId
MyTag::GetTypeId (void)
{
static TypeId tid = TypeId ("ns3::MyTag")
.SetParent<Tag> ()
.AddConstructor<MyTag> ()
.AddAttribute ("SimpleValue", "A simple value", EmptyAttributeValue (),
MakeUintegerAccessor (&MyTag::GetSimpleValue),
MakeUintegerChecker<uint32_t> ());
return tid;
}
TypeId
MyTag::GetInstanceTypeId (void) const
{
return GetTypeId ();
}
uint32_t
MyTag::GetSerializedSize (void) const
{
return 4;
}
void
MyTag::Serialize (TagBuffer i) const
{
i.WriteU32 (m_simpleValue);
}
void
MyTag::Deserialize (TagBuffer i)
{
m_simpleValue = i.ReadU32 ();
}
void
MyTag::Print (std::ostream &os) const
{
os << "v=" << (uint32_t) m_simpleValue;
}
void
MyTag::SetSimpleValue (uint32_t value)
{
m_simpleValue = value;
}
uint32_t
MyTag::GetSimpleValue (void) const
{
return m_simpleValue;
}
//=========================================================================//
//===============Beigining of Application definition=======================//
//=========================================================================//
class MyApp : public Application
{
public:
MyApp ();
virtual ~MyApp ();
//void Setup (Ptr<Socket> socket, Address address, uint32_t packetSize, uint32_t nPackets, DataRate dataRate);
void Setup (Ptr<Socket> socket, Address address, uint32_t packetSize, DataRate dataRate);
void SetTagValue (uint32_t value);
void SetDataRate (DataRate rate);
private:
virtual void StartApplication (void);
virtual void StopApplication (void);
void ScheduleTx (void);
void SendPacket (void);
Ptr<Socket> m_socket;
Address m_peer;
uint32_t m_packetSize;
//uint32_t m_nPackets;
DataRate m_dataRate;
EventId m_sendEvent;
bool m_running;
//uint32_t m_packetsSent;
uint32_t m_tagValue;
};
MyApp::MyApp ()
: m_socket (0),
m_peer (),
m_packetSize (0),
//m_nPackets (0),
m_dataRate (0),
m_sendEvent (),
m_running (false),
//m_packetsSent (0)
m_tagValue (0)
{
}
MyApp::~MyApp ()
{
m_socket = 0;
}
void
//MyApp::Setup (Ptr<Socket> socket, Address address, uint32_t packetSize, uint32_t nPackets, DataRate dataRate)
MyApp::Setup (Ptr<Socket> socket, Address address, uint32_t packetSize, DataRate dataRate)
{
m_socket = socket;
m_peer = address;
m_packetSize = packetSize;
//m_nPackets = nPackets;
m_dataRate = dataRate;
}
void
MyApp::SetDataRate (DataRate rate)
{
m_dataRate = rate;
}
void
MyApp::SetTagValue (uint32_t value)
{
m_tagValue = value;
}
void
MyApp::StartApplication (void)
{
m_running = true;
//m_packetsSent = 0;
m_socket->Bind ();
m_socket->Connect (m_peer);
SendPacket ();
}
void
MyApp::StopApplication (void)
{
m_running = false;
if (m_sendEvent.IsRunning ())
{
Simulator::Cancel (m_sendEvent);
}
if (m_socket)
{
m_socket->Close ();
}
}
void
MyApp::SendPacket (void)
{
MyTag tag;
tag.SetSimpleValue (m_tagValue);
Ptr<Packet> packet = Create<Packet> (m_packetSize);
packet->AddPacketTag (tag); //add tags
m_socket->Send (packet);
ScheduleTx ();
txCnt[m_tagValue - 1] ++;
if(txCnt[m_tagValue - 1] % 500 == 0)
{
stringstream ss;
ss << "TX: " << Simulator::Now ().GetSeconds () << " s: " << m_tagValue // << ". " << m_cnt - 1
<< " ; total: " << txCnt[m_tagValue - 1];
if (isPrintTx)
NS_LOG_INFO (ss.str ());
}
}
void
MyApp::ScheduleTx (void)
{
if (m_running)
{
Time tNext (Seconds (m_packetSize * 8 / static_cast<double> (m_dataRate.GetBitRate ())));
// mark the count
m_sendEvent = Simulator::Schedule (tNext, &MyApp::SendPacket, this);
}
}
// void attackFlow(PointToPointDumbbellHelper d, uint32_t nAttacker, double stopTime)
// {
// for (uint32_t i = d.RightCount() - nAttacker; i < d.RightCount(); ++i)
// {
// Ptr<Socket> ns3Socket = Socket::CreateSocket(d.GetRight(i), UdpSocketFactory::GetTypeId());
// Address sinkAddress(InetSocketAddress(d.GetLeftIpv4Address(i), attackerport));
// Ptr<MyApp> app = CreateObject<MyApp>();
// uint32_t tagValue = i + 1; //take the least significant 8 bits
// app->SetTagValue(tagValue);
// app->Setup(ns3Socket, sinkAddress, 1000, DataRate(attackerDataRate));
// d.GetRight(i)->AddApplication(app);
// app->SetStartTime(Seconds(0.0));
// app->SetStopTime(Seconds(duration));
// }
// }
void
clearArray ()
{
for (uint32_t j = 0; j < nRight; ++j)
{
//std::cout << "client no: " << j << "; arrived: "<< receiveWin[j] << "; drop rate: " << 1.0 * dropArray[j] / receiveWin[j] << std::endl;
receiveWin[j] = 0;
dropArray[j] = 0;
recvData[j] = 0.0;
recvBit[j] = 0.0;
rxCnt[j] = 0;
}
total_capacity = 0;
}
// the sloping probability for best effort packets
bool
slopingProb (double lossRate)
{
if (lossRate > lossRateThreshold)
{
return true;
}
else
{
double dropP = 20.0 * lossRate;
double randP = (double) rand () / RAND_MAX;
if (dropP <= randP)
{
return true;
}
}
return false;
}
int rxTagCnt = 0;
static void
PktArrival (Ptr<const Packet> p)
{
Ptr<Packet> pktCopy = p->Copy ();
MyTag tag;
// printHeader(p);
vector<int> tmp = getPktSizes(p);
if (pktCopy->PeekPacketTag (tag)) // if find a tag
{
/// logging header/address
// compatible with the setting
uint32_t index = tag.GetSimpleValue () - 1;
rxCnt[index] ++;
receiveWin[index] ++;
double ttemp = Simulator::Now ().GetSeconds ();
stringstream ss;
// if(!index)
ss << "- RX: " << Simulator::Now ().GetSeconds () << " : " << index + 1 << ". " << rxCnt[index]
<< " : rt pkt time = " << ttemp - tPkt[index] << " s ; tcp size: " << getTcpSize(p);
if (isPrintRx)
NS_LOG_INFO (ss.str () + "; " + logPktIpv4Address (p));
if (isPrintHeader)
// NS_LOG_INFO ("- TCP Header: " + logTcpHeader (p));
NS_LOG_INFO (printPkt(p));
tPkt[index] = ttemp;
recvData[index] += (double) tmp[3] / 1000.0; // size in KB
recvBit[index] += (double) tmp[0] / 1000.0; // raw size in KB
if (++realtimePeriod ==
realtimePacketFeedback) // calculating a real-time loss rate every 50 packets
{
realtimeLossRate = (double) realtimeDrop / realtimePeriod;
realtimePeriod = 0;
realtimeDrop = 0;
}
if (enableEarlyDrop > 0)
{
if (receiveWin[index] > congWin[index])
{
// cout << index << " : rwnd = " << receiveWin[index] << " ; cwnd = " << congWin[index] <<
// "; rtLR = " << realtimeLossRate << "; LLR = " << lossRateArray[index] << endl;
if (realtimeLossRate > lossRateThreshold || lossRateArray[index] > lossRateThreshold)
{
p2pDevice->SetEarlyDrop (true);
realtimeDrop--;
cout << "Early drop!" << endl;
}
}
}
}
// else {cout << " tag not found!" << endl;} /// no need after counting tagged packet
// filename[n] // should defined globally
ofstream fout[nRight];
for (int i = 0; i < nRight; i++)
fout[i].open (fileName[i], ios::out | ios::app);
if (Simulator::Now ().GetSeconds () > detectPeriod)
{
cout << endl
<< Simulator::Now ().GetSeconds () << "s detection period: " << bootStrap++ << endl;
if (windowFile.is_open ())
windowFile << Simulator::Now ().GetSeconds () << " ";
if (lossRateFile.is_open ())
lossRateFile << Simulator::Now ().GetSeconds () << " ";
for (uint32_t j = 0; j < nRight; j++)
{
// loss rate & cwnd update
double lossRate = receiveWin[j] > 0 ? (double) dropArray[j] / receiveWin[j] : 0.0;
lossRateArray[j] = receiveWin[j] > 5 ? (1 - beta) * lossRate + beta * lossRateArray[j]
: beta * lossRateArray[j]; // ??
congWin[j] = receiveWin[j] >= dropArray[j] ? receiveWin[j] - dropArray[j] : 0;
// output to file & stdout
if (windowFile.is_open ())
windowFile << congWin[j] << " ";
if (lossRateFile.is_open ())
lossRateFile << lossRateArray[j] << " ";
cout << "Client No." << j << "; cwnd: " << congWin[j]
<< "; loss rate: " << lossRateArray[j] << "; rwnd: " << receiveWin[j]
<< "; drop window: " << dropArray[j] << "; realtime loss: " << realtimeLossRate
<< endl;
// fout[j] << Simulator::Now().GetSeconds() << " " << congWin[j] << endl;
cout << Simulator::Now ().GetSeconds () << ": raw: " << recvBit[j] * 8.0 / period << " kbps"
<< "; data: " << recvData[j] * 8.0 / period << " kbps" << endl;
// cout << " = pkt sizes: " << tmp[0] << " " << tmp[1] << " " << tmp[2] << " " << tmp[3] << endl;
fout[j] << Simulator::Now ().GetSeconds () << " " << recvData[j] * 8.0 / period << " kbps"
<< endl; // output the ephermal data rate (omit pkt size 1kB)
}
if (windowFile.is_open ())
windowFile << endl;
if (lossRateFile.is_open ())
lossRateFile << endl;
detectPeriod += period; // update for next period
clearArray ();
}
// close the file
for (int i = 0; i < nRight; i++)
fout[i].close ();
}
int pktLeft = 0;
int pktTagLeft = 0;
static void
PktArrivalLeft (Ptr<const Packet> p)
{
pktLeft++;
Ptr<Packet> pktCopy = p->Copy ();
MyTag tag;
if (pktCopy->PeekPacketTag (tag)) // if find a tag
{
// compatible with the setting
uint32_t index = tag.GetSimpleValue () - 1;
stringstream ss;
ss << " Left router: " << Simulator::Now ().GetSeconds () << ": " << index + 1
<< ". " // << cnt
<< " ; total(tag): " << ++pktTagLeft << " ; total: " << pktLeft;
if (isPrintLeft)
NS_LOG_INFO (ss.str () + "; " + logPktIpv4Address (p));
if (isPrintHeader)
// NS_LOG_INFO ("- TCP Header: " + logTcpHeader (p));
// NS_LOG_INFO ("- IP header: " + logIpv4Header(p));
NS_LOG_INFO (printPkt(p));
}
}
static void
PktDropLeft (Ptr<const Packet> p)
{
stringstream ss;
ss << " - Left: drop packet!" << endl;
NS_LOG_INFO (ss.str ());
}
static void
PktDrop (Ptr<const Packet> p)
{
realtimeDrop += 1;
MyTag tag;
if (p->PeekPacketTag (tag))
dropArray[tag.GetSimpleValue () - 1] += 1;
cout << "Drop packet!" << endl;
}
static void
PktDropOverflowLeft (Ptr<const Packet> p)
{
stringstream ss;
ss << " - Left: drop for overflow!" << endl;
NS_LOG_INFO (ss.str ());
}
static void
PktDropOverflow (Ptr<const Packet> p)
{
cout << "Dropping for overflow" << endl;
}
static void
RttTracer (Time oldval, Time newval)
{
stringstream ss;
if (firstRtt)
{
ss << "0.0 " << oldval.GetSeconds () << std::endl;
firstRtt = false;
}
ss << Simulator::Now ().GetSeconds () << " " << newval.GetSeconds () << std::endl;
cout << ss.str() << endl;
}
//===========================Main Function=============================//
int
main (int argc, char *argv[])
{
uint32_t maxPackets = 250;
uint32_t modeBytes = 0;
double minTh = 100;
double maxTh = 200;
uint32_t pktSize = 1000; // 1000 KB
double stopTime = 3;
string pktPrint;
isPrintHeader = false; // if print tcp header
isPrintTx = false;
isPrintLeft = false;
isPrintRx = false;
uint32_t maxWinSize = 131070;
string appDataRate = "1Mbps"; // no use here
string queueType = "DropTail";
string bottleNeckLinkBw = "100Mbps";
string bottleNeckLinkDelay = "5ms";
string attackFlowType = "ns3::TcpSocketFactory"; // if we need here?
// just copy the original below
std::string mtu = "1599";
// define the file names here
ofstream fout[nRight];
for (int i = 0; i < nRight; i++)
{
fileName.push_back ("wndOutput_" + to_string (i) + ".dat");
remove (fileName[i].c_str ());
}
// initialize tPkt
for (int i = 0; i < ARRAY_SIZE; i++)
{
tPkt[i] = 0.0;
txCnt[i] = 0;
rxCnt[i] = 0;
}
//get the local time
std::time_t t = std::time (NULL);
char localTime[100];
std::strftime (localTime, 100, "%c", std::localtime (&t));
CommandLine cmd;
cmd.AddValue ("nLeft", "Number of left side nodes", nLeft);
cmd.AddValue ("enableEarlyDrop", "enableEarlyDrop", enableEarlyDrop);
cmd.AddValue ("attackerDataRate", "attack data rate", attackerDataRate);
cmd.AddValue ("clientDataRate", "legitimate users data rate", clientDataRate);
cmd.AddValue ("bottleNeckLinkDelay", "bottle neck link delay", bottleNeckLinkDelay); /// added
cmd.AddValue ("bottleNeckLinkBw", "bottle neck link bandwidth", bottleNeckLinkBw);
cmd.AddValue ("stopTime", "Stopping time for simulation", stopTime);
cmd.AddValue ("attackFlowType", "Type of attacking flows", attackFlowType);
cmd.AddValue ("nRight", "Number of TCP attacking flows", nRight);
cmd.AddValue ("maxPackets", "Max Packets allowed in the queue", maxPackets);
cmd.AddValue ("queueType", "Set Queue type to DropTail or RED", queueType);
cmd.AddValue ("appDataRate", "Set OnOff App DataRate", appDataRate);
cmd.AddValue ("modeBytes", "Set Queue mode to Packets <0> or bytes <1>", modeBytes);
cmd.AddValue ("nCrossing", "The number of crossing traffic flows", nCrossing);
cmd.AddValue ("enablePacketPrint", "enable printing packet detail in log", pktPrint);
cmd.AddValue ("redMinTh", "RED queue minimum threshold", minTh);
cmd.AddValue ("redMaxTh", "RED queue maximum threshold", maxTh);
cmd.AddValue ("maxWindowSize", "Max TCP window size", maxWinSize);
cmd.Parse (argc, argv);
cout << "bottlelNeck Link BW: " << bottleNeckLinkBw << endl;
cout << "client Data Rate: " << clientDataRate << endl;
cout << "bottleNeck Link Delay: " << bottleNeckLinkDelay << endl;
isPrintHeader = pktPrint == "y"? true : (pktPrint == "n"? false : isPrintHeader);
TcpOptionWinScale winScale;
cout << "win scale: " << winScale.GetScale() << "; id: " << winScale.GetTypeId() << endl;
cout << winScale.GetSerializedSize() << endl;
winScale.SetScale(2);
cout << "win scale: " << winScale.GetScale() << endl;
// from command line arguments
// Config::SetDefault("ns3::TcpSocketBase::MaxWindowSize", UintegerValue(131070)); // doesn't work
// Config::SetDefault("ns3::TcpSocket::RcvBufSize", UintegerValue (maxWinSize));
/* 1. DropTail: simple active queuing management(AQM) algorithm, drop packets after queue is full (not fair, -> bad global tcp sync)
2. RED (Random Early Detection): monitor average queue size, mark/drop packet based on probability (control queue size, avoid global sync, ...)
see http://www.roman10.net/2011/11/10/drop-tail-and-redtwo-aqm-mechanisms/ */
Packet::EnablePrinting ();
Packet::EnableChecking ();
if ((queueType != "RED") && (queueType != "DropTail"))
{
NS_ABORT_MSG ("Invalid queue type: Use --queueType=RED or --queueType=DropTail");
}
//configuration
//Config::SetDefault ("ns3::OnOffApplication::PacketSize", UintegerValue (pktSize));
Config::SetDefault ("ns3::TcpL4Protocol::SocketType", StringValue ("ns3::TcpNewReno"));
//Config::SetDefault ("ns3::OnOffApplication::DataRate", StringValue (appDataRate));
// if (modeBytes)
// {
// Config::SetDefault("ns3::DropTailQueue::Mode", StringValue("QUEUE_MODE_PACKETS"));
// Config::SetDefault("ns3::DropTailQueue::MaxPackets", UintegerValue(maxPackets));
// Config::SetDefault("ns3::RedQueue::Mode", StringValue("QUEUE_MODE_PACKETS"));
// Config::SetDefault("ns3::RedQueue::QueueLimit", UintegerValue(maxPackets));
// }
// else
// {
// Config::SetDefault("ns3::DropTailQueue::Mode", StringValue("QUEUE_MODE_BYTES"));
// Config::SetDefault("ns3::DropTailQueue::MaxBytes", UintegerValue(maxPackets * pktSize));
// Config::SetDefault("ns3::RedQueue::Mode", StringValue("QUEUE_MODE_BYTES"));
// Config::SetDefault("ns3::RedQueue::QueueLimit", UintegerValue(maxPackets * pktSize));
// minTh *= pktSize;
// maxTh *= pktSize;
// }
minTh *= pktSize;
maxTh *= pktSize;
/// set log components
LogComponentEnable ("TestForMiddlePolice", LOG_LEVEL_INFO); /// test here
// LogComponentEnable ("PointToPointDumbbellHelper", LOG_LEVEL_INFO); /// none
// LogComponentEnable ("PointToPointHelper", LOG_LEVEL_INFO); /// none
// LogComponentEnable ("PacketSink", LOG_LEVEL_INFO);
// LogComponentEnable ("PacketSocket", LOG_LEVEL_INFO); /// after testing: no this module in the code
// LogComponentEnable ("PacketSocketClient", LOG_LEVEL_INFO); /// no this
// LogComponentEnable ("PacketSocketServer", LOG_LEVEL_INFO); /// no this
//===================Create network topology===========================//
// Need to create three links for this topo
// 1. The connection between left nodes and left router
// 2. The connection between right nodes and right router
// 3. The connection between two routers
PointToPointHelper bottleNeckLink;
bottleNeckLink.SetDeviceAttribute ("DataRate", StringValue (bottleNeckLinkBw));
bottleNeckLink.SetDeviceAttribute (
"Mtu",
StringValue (
mtu)); /// maximum transmission unit, largest packet or frame size, that can be sent in a packet- or frame-based network
bottleNeckLink.SetChannelAttribute ("Delay", StringValue (bottleNeckLinkDelay));
if (queueType == "RED")
{
bottleNeckLink.SetQueue (
"ns3::RedQueue", /// MinTh < queue size (av) < MaxTh: calculate dropping probability
"MinTh", DoubleValue (minTh), /// < MinTh: enqueue
"MaxTh", DoubleValue (maxTh), /// > MaxTh: drop
"LinkBandwidth", StringValue (bottleNeckLinkBw),
"LinkDelay", StringValue (bottleNeckLinkDelay));
}
else
{
bottleNeckLink.SetQueue(
"ns3::DropTailQueue",
"MaxSize", StringValue("200p")
);
// cout << "Drop tail queue set!" << endl;
}
//leaf helper:
PointToPointHelper pointToPointLeaf;
pointToPointLeaf.SetDeviceAttribute ("DataRate", StringValue ("100000Mbps")); // 1 Tbps
pointToPointLeaf.SetChannelAttribute ("Delay", StringValue ("1ms"));
// Dumbbell constructor: nLeaf normal flows and nAttacker attack flows
/// left nodes <-> router <-> router <-> right nodes, like the shape of dumpbell
PointToPointDumbbellHelper d1 (nLeft, pointToPointLeaf, nRight, pointToPointLeaf, bottleNeckLink);
// Install Stack to the whole nodes
InternetStackHelper stack;
d1.InstallStack (stack);
// Assign IP Addresses
// Three sets of address: the left, the right and the router
d1.AssignIpv4Addresses (Ipv4AddressHelper ("10.1.0.0", "255.255.255.252"),
Ipv4AddressHelper ("11.1.0.0", "255.255.255.252"),
Ipv4AddressHelper ("12.1.0.0", "255.255.255.252"));
// obtain the p2p devices
//===================End of Creating Network Topology===================//
//==========================================================================//
//===================Config the LEFT side nodes: sink or receiver===========//
//==========================================================================//
// return the address of that endpoint
Address sinkLocalAddress (InetSocketAddress (Ipv4Address::GetAny (), port));
Address attackerSinkLocalAddress (InetSocketAddress (Ipv4Address::GetAny (), attackerport));
/* what's the difference of packet sink & cross sink ? packet sink is what we care?*/
// create the package sink application, which means that the endpoint will receive packets using certain protocols
PacketSinkHelper packetSinkHelper ("ns3::TcpSocketFactory", sinkLocalAddress);
// Create the normal TCP flows sink applications
ApplicationContainer sinkApps;
//for (uint32_t i = 0; i < d1.LeftCount () - nAttacker; ++i)
for (uint32_t i = 0; i < d1.LeftCount (); ++i)
{
// packetSinkHelper.Install (node): install the sink app on this node /// which is tcp on sink local addr
// sinkApps.add (app): add one single application to the container
sinkApps.Add (packetSinkHelper.Install (d1.GetLeft (i)));
}
// Arrange all application in the container to start and stop
sinkApps.Start (Seconds (0.0));
sinkApps.Stop (Seconds (stopTime));
//==========================================================================//
//======================End of sink applications============================//
//===========================================================================//
//==========================================================================//
//================Creating the normal client applications===================//
//==========================================================================//
for (uint32_t i = 0; i < d1.RightCount (); ++i)
{
Ptr<Socket> ns3Socket =
Socket::CreateSocket (d1.GetRight (i), TcpSocketFactory::GetTypeId ());
Address sinkAddress (
InetSocketAddress (d1.GetLeftIpv4Address (i % nLeft),
port)); /// send to i th left node, map right node to left node
Ptr<MyApp> app = CreateObject<MyApp> ();
uint32_t tagValue = i + 1; //take the least significant 8 bits
// 2nd line for idtentify each packet to get the RTT
app->SetTagValue (tagValue);
app->Setup (ns3Socket, sinkAddress, pktSize, DataRate (clientDataRate));
d1.GetRight (i)->AddApplication (app);
app->SetStartTime (Seconds (0));
app->SetStopTime (Seconds (stopTime));
}
//==========================================================================//
//==================End of normal client applications=======================//
//==========================================================================//
//========================flow monitor======================================//
Ptr<FlowMonitor> flowmon;
FlowMonitorHelper flowmonHelper;
flowmon = flowmonHelper.InstallAll ();
flowmon->Start (Seconds (0.0));
flowmon->Stop (Seconds (stopTime));
//==========================================================================//
for (uint32_t j = 0; j < nRight; ++j)
{
dropArray[j] = 0;
congWin[j] = 0;
receiveWin[j] = 0;
lossRateArray[j] = 0;
recvData[j] = 0.0;
recvBit[j] = 0.0;
}
//=============================Trace source============================//
router = d1.GetRight ();
Ptr<Node> rightRouter = d1.GetRight ();
Ptr<Node> leftRouter = d1.GetLeft ();
//std::cout << "number of devices: " << rightRouter->GetNDevices() << std::endl;
for (uint32_t i = 0; i < rightRouter->GetNDevices (); ++i)
{
// Find the bottleneck device (p2p device)
if ((rightRouter->GetDevice (i)->GetMtu ()) == mmtu) // don
{ /// get mtu = mmtu: what's that mean
bottleNeckLink.EnablePcap (
"rrouter", rightRouter->GetDevice (i)); /// PCAP: a binary format for packet capture
rightRouter->GetDevice (i)->TraceConnectWithoutContext ("MacTx",
MakeCallback (&PktArrival));
rightRouter->GetDevice (i)->TraceConnectWithoutContext ("MacTxDrop",
MakeCallback (&PktDrop));
rightRouter->GetDevice (i)->TraceConnectWithoutContext ("PhyRxDrop",
MakeCallback (&PktDropOverflow));
// Simulator::Schedule (Seconds (0.00001), &TraceRtt, "mptest-rtt.data");
p2pDevice = DynamicCast<PointToPointNetDevice> (router->GetDevice (i));
}
bottleNeckLink.EnablePcap (
"lrouter", leftRouter->GetDevice (i)); /// PCAP: a binary format for packet capture
leftRouter->GetDevice (i)->TraceConnectWithoutContext ("MacTx",
MakeCallback (&PktArrivalLeft));
leftRouter->GetDevice (i)->TraceConnectWithoutContext ("MacTxDrop",
MakeCallback (&PktDropLeft));
leftRouter->GetDevice (i)->TraceConnectWithoutContext ("PhyRxDrop",
MakeCallback (&PktDropOverflowLeft));
}
Config::ConnectWithoutContext ("/NodeList/1/$ns3::TcpL4Protocol/SocketList/0/RTT",
MakeCallback (&RttTracer));
//===========================================================================//
// ascii tracing
AsciiTraceHelper ascii;
bottleNeckLink.EnableAsciiAll (ascii.CreateFileStream ("mptest_woTag.tr"));
bottleNeckLink.EnablePcapAll ("mptest_woTag");
// Routing table
Ipv4GlobalRoutingHelper::PopulateRoutingTables (); /// exact meaning? necessary or not?
std::cout << "Running the simulation" << std::endl;
// The last event scheduled by the simulator
Simulator::Stop (Seconds (stopTime));
Simulator::Run ();
// Calculating the sending rate
// Legitimate flows
double clientCounter = 0;
double clientCounterSquare = 0;
double totalCounter = 0;
double totalCounterSquare = 0;
for (uint32_t i = 0; i < sinkApps.GetN (); i++)
{
/// number of packet we care about
Ptr<Application> app = sinkApps.Get (i);
// PacketSink: receive and consume the traffic generated to the IP address and port
Ptr<PacketSink> pktSink = DynamicCast<PacketSink> (app);
// GetTotalRx: total bytes received in a sink app
double bytes =
1.0 * pktSink->GetTotalRx () * 8 / 1000000; /// why multiply by 8? I think it's bits??