/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2008 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
*/
#include "ns3/assert.h"
#include "ns3/log.h"
#include "ns3/object.h"
#include "ns3/ipv4.h"
#include "internet-stack-helper.h"
#include "ns3/internet-stack.h"
#include "ns3/packet-socket-factory.h"
#include "ns3/config.h"
#include "ns3/simulator.h"
#include <limits>
namespace ns3 {
std::vector<InternetStackHelper::Trace> InternetStackHelper::m_traces;
std::string InternetStackHelper::m_pcapBaseFilename;
void
InternetStackHelper::Cleanup (void)
{
uint32_t illegal = std::numeric_limits<uint32_t>::max();
for (std::vector<Trace>::iterator i = m_traces.begin ();
i != m_traces.end (); i++)
{
i->nodeId = illegal;
i->interfaceId = illegal;
i->writer = 0;
}
m_traces.clear ();
}
void
InternetStackHelper::Install (NodeContainer c)
{
for (NodeContainer::Iterator i = c.Begin (); i != c.End (); ++i)
{
Ptr<Node> node = *i;
if (node->GetObject<Ipv4> () != 0)
{
NS_FATAL_ERROR ("InternetStackHelper::Install(): Aggregating "
"an InternetStack to a node with an existing Ipv4 object");
return;
}
AddInternetStack (node);
Ptr<PacketSocketFactory> factory = CreateObject<PacketSocketFactory> ();
node->AggregateObject (factory);
}
}
void
InternetStackHelper::EnablePcapAll (std::string filename)
{
Simulator::ScheduleDestroy (&InternetStackHelper::Cleanup);
InternetStackHelper::m_pcapBaseFilename = filename;
Config::Connect ("/NodeList/*/$ns3::Ipv4L3Protocol/Tx",
MakeCallback (&InternetStackHelper::LogTxIp));
Config::Connect ("/NodeList/*/$ns3::Ipv4L3Protocol/Rx",
MakeCallback (&InternetStackHelper::LogRxIp));
}
uint32_t
InternetStackHelper::GetNodeIndex (std::string context)
{
std::string::size_type pos;
pos = context.find ("/NodeList/");
NS_ASSERT (pos == 0);
std::string::size_type afterNodeIndex = context.find ("/", 11);
NS_ASSERT (afterNodeIndex != std::string::npos);
std::string index = context.substr (10, afterNodeIndex - 10);
std::istringstream iss;
iss.str (index);
uint32_t nodeIndex;
iss >> nodeIndex;
return nodeIndex;
}
void
InternetStackHelper::LogTxIp (std::string context, Ptr<const Packet> packet, uint32_t interfaceIndex)
{
Ptr<PcapWriter> writer = InternetStackHelper::GetStream (GetNodeIndex (context), interfaceIndex);
writer->WritePacket (packet);
}
void
InternetStackHelper::LogRxIp (std::string context, Ptr<const Packet> packet, uint32_t interfaceIndex)
{
Ptr<PcapWriter> writer = InternetStackHelper::GetStream (GetNodeIndex (context), interfaceIndex);
writer->WritePacket (packet);
}
Ptr<PcapWriter>
InternetStackHelper::GetStream (uint32_t nodeId, uint32_t interfaceId)
{
for (std::vector<Trace>::iterator i = m_traces.begin ();
i != m_traces.end (); i++)
{
if (i->nodeId == nodeId &&
i->interfaceId == interfaceId)
{
return i->writer;
}
}
InternetStackHelper::Trace trace;
trace.nodeId = nodeId;
trace.interfaceId = interfaceId;
trace.writer = Create<PcapWriter> ();
std::ostringstream oss;
oss << m_pcapBaseFilename << "-" << nodeId << "-" << interfaceId << ".pcap";
trace.writer->Open (oss.str ());
trace.writer->WriteIpHeader ();
m_traces.push_back (trace);
return trace.writer;
}
} // namespace ns3