blob: 12a0cbbb34d128eb02ceec12c122c2251aa78fc9 [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2011-2015 Regents of the University of California.
*
* This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
* contributors.
*
* ndnSIM 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.
*
* ndnSIM 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
* ndnSIM, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
**/
// ndn-simple-with-pcap.cpp
#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/ndnSIM-module.h"
/**
* This scenario demonstrates how to dump raw NDN packets into tcpdump-format
*
* Run scenario:
*
* ./waf --run ndn-simple-with-pcap
*
* After simulation finishes, it produces `ndn-simple-trace.pcap` that can be read
* using tcpdump or ndndump tools:
*
* ndndump -r ndn-simple-trace.pcap not ip
* tcpdump -r ndn-simple-trace.pcap
*/
namespace ns3 {
class PcapWriter {
public:
PcapWriter(const std::string& file)
{
PcapHelper helper;
m_pcap = helper.CreateFile(file, std::ios::out, PcapHelper::DLT_PPP);
}
void
TracePacket(Ptr<const Packet> packet)
{
static PppHeader pppHeader;
pppHeader.SetProtocol(0x0077);
m_pcap->Write(Simulator::Now(), pppHeader, packet);
}
private:
Ptr<PcapFileWrapper> m_pcap;
};
int
main(int argc, char* argv[])
{
// setting default parameters for PointToPoint links and channels
Config::SetDefault("ns3::PointToPointNetDevice::DataRate", StringValue("1Mbps"));
Config::SetDefault("ns3::PointToPointChannel::Delay", StringValue("10ms"));
Config::SetDefault("ns3::DropTailQueue::MaxPackets", StringValue("20"));
// Read optional command-line parameters (e.g., enable visualizer with ./waf --run=<> --visualize
CommandLine cmd;
cmd.Parse(argc, argv);
// Creating nodes
NodeContainer nodes;
nodes.Create(3);
// Connecting nodes using two links
PointToPointHelper p2p;
p2p.Install(nodes.Get(0), nodes.Get(1));
p2p.Install(nodes.Get(1), nodes.Get(2));
// Install NDN stack on all nodes
ndn::StackHelper ndnHelper;
ndnHelper.SetDefaultRoutes(true);
ndnHelper.InstallAll();
// Installing applications
// Consumer
ndn::AppHelper consumerHelper("ns3::ndn::ConsumerCbr");
// Consumer will request /prefix/0, /prefix/1, ...
consumerHelper.SetPrefix("/prefix");
consumerHelper.SetAttribute("Frequency", StringValue("10")); // 10 interests a second
consumerHelper.Install(nodes.Get(0)); // first node
// Producer
ndn::AppHelper producerHelper("ns3::ndn::Producer");
// Producer will reply to all requests starting with /prefix
producerHelper.SetPrefix("/prefix");
producerHelper.SetAttribute("PayloadSize", StringValue("1024"));
producerHelper.SetAttribute("Signature", UintegerValue(100));
producerHelper.SetAttribute("KeyLocator", StringValue("/unique/key/locator"));
producerHelper.Install(nodes.Get(2)); // last node
PcapWriter trace("ndn-simple-trace.pcap");
Config::ConnectWithoutContext("/NodeList/*/DeviceList/*/$ns3::PointToPointNetDevice/MacTx",
MakeCallback(&PcapWriter::TracePacket, &trace));
Simulator::Stop(Seconds(20.0));
Simulator::Run();
Simulator::Destroy();
return 0;
}
} // namespace ns3
int
main(int argc, char* argv[])
{
return ns3::main(argc, argv);
}