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Bug 407 - OLSR is missing HNA support

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This commit is contained in:
Lalith Suresh
2010-03-17 15:46:42 +00:00
parent f7025232b2
commit 5df0dae003
9 changed files with 814 additions and 18 deletions
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263
examples/routing/olsr-hna.cc Normal file
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@@ -0,0 +1,263 @@
/* -*- 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
*
*/
//
// This script, adapted from examples/wireless/wifi-simple-adhoc illustrates
// the use of OLSR HNA.
//
// Network Topology:
//
// |------ OLSR ------| |---- non-OLSR ----|
// A )))) (((( B ------------------- C
// 10.1.1.1 10.1.1.2 172.16.1.2 172.16.1.1
//
// Node A needs to send a UDP packet to node C. This can be done only after
// A receives an HNA message from B, in which B announces 172.16.1.0/24
// as an associated network.
//
// If no HNA message is generated by B, a will not be able to form a route to C.
// This can be verified as follows:
//
// ./waf --run olsr-hna
//
// There are two ways to make a node to generate HNA messages.
//
// One way is to use olsr::RoutingProtocol::SetRoutingTableAssociation ()
// to use which you may run:
//
// ./waf --run "olsr-hna --assocMethod1=1"
//
// The other way is to use olsr::RoutingProtocol::AddHostNetworkAssociation ()
// to use which you may run:
//
// ./waf --run "olsr-hna --assocMethod2=1"
//
#include "ns3/core-module.h"
#include "ns3/common-module.h"
#include "ns3/node-module.h"
#include "ns3/helper-module.h"
#include "ns3/mobility-module.h"
#include "ns3/contrib-module.h"
#include "ns3/wifi-module.h"
#include "ns3/ipv4-list-routing.h"
#include "ns3/olsr-routing-protocol.h"
#include <iostream>
#include <fstream>
#include <vector>
#include <string>
NS_LOG_COMPONENT_DEFINE ("OlsrHna");
using namespace ns3;
void ReceivePacket (Ptr<Socket> socket)
{
NS_LOG_UNCOND ("Received one packet!");
}
static void GenerateTraffic (Ptr<Socket> socket, uint32_t pktSize,
uint32_t pktCount, Time pktInterval )
{
if (pktCount > 0)
{
socket->Send (Create<Packet> (pktSize));
Simulator::Schedule (pktInterval, &GenerateTraffic,
socket, pktSize,pktCount-1, pktInterval);
}
else
{
socket->Close ();
}
}
int main (int argc, char *argv[])
{
std::string phyMode ("wifib-1mbs");
double rss = -80; // -dBm
uint32_t packetSize = 1000; // bytes
uint32_t numPackets = 1;
double interval = 1.0; // seconds
bool verbose = false;
bool assocMethod1 = false;
bool assocMethod2 = false;
CommandLine cmd;
cmd.AddValue ("phyMode", "Wifi Phy mode", phyMode);
cmd.AddValue ("rss", "received signal strength", rss);
cmd.AddValue ("packetSize", "size of application packet sent", packetSize);
cmd.AddValue ("numPackets", "number of packets generated", numPackets);
cmd.AddValue ("interval", "interval (seconds) between packets", interval);
cmd.AddValue ("verbose", "turn on all WifiNetDevice log components", verbose);
cmd.AddValue ("assocMethod1", "Use SetRoutingTableAssociation () method", assocMethod1);
cmd.AddValue ("assocMethod2", "Use AddHostNetworkAssociation () method", assocMethod2);
cmd.Parse (argc, argv);
// Convert to time object
Time interPacketInterval = Seconds (interval);
// disable fragmentation for frames below 2200 bytes
Config::SetDefault ("ns3::WifiRemoteStationManager::FragmentationThreshold", StringValue ("2200"));
// turn off RTS/CTS for frames below 2200 bytes
Config::SetDefault ("ns3::WifiRemoteStationManager::RtsCtsThreshold", StringValue ("2200"));
// Fix non-unicast data rate to be the same as that of unicast
Config::SetDefault ("ns3::WifiRemoteStationManager::NonUnicastMode",
StringValue (phyMode));
NodeContainer olsrNodes;
olsrNodes.Create (2);
NodeContainer csmaNodes;
csmaNodes.Create (1);
// The below set of helpers will help us to put together the wifi NICs we want
WifiHelper wifi;
if (verbose)
{
wifi.EnableLogComponents (); // Turn on all Wifi logging
}
wifi.SetStandard (WIFI_PHY_STANDARD_80211b);
YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default ();
// This is one parameter that matters when using FixedRssLossModel
// set it to zero; otherwise, gain will be added
wifiPhy.Set ("RxGain", DoubleValue (0) );
// ns-3 supports RadioTap and Prism tracing extensions for 802.11b
wifiPhy.SetPcapDataLinkType (YansWifiPhyHelper::DLT_IEEE802_11_RADIO);
YansWifiChannelHelper wifiChannel ;
wifiChannel.SetPropagationDelay ("ns3::ConstantSpeedPropagationDelayModel");
// The below FixedRssLossModel will cause the rss to be fixed regardless
// of the distance between the two stations, and the transmit power
wifiChannel.AddPropagationLoss ("ns3::FixedRssLossModel","Rss",DoubleValue(rss));
wifiPhy.SetChannel (wifiChannel.Create ());
// Add a non-QoS upper mac, and disable rate control
NqosWifiMacHelper wifiMac = NqosWifiMacHelper::Default ();
wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",
"DataMode",StringValue(phyMode),
"ControlMode",StringValue(phyMode));
// Set it to adhoc mode
wifiMac.SetType ("ns3::AdhocWifiMac");
NetDeviceContainer devices = wifi.Install (wifiPhy, wifiMac, olsrNodes);
CsmaHelper csma;
csma.SetChannelAttribute ("DataRate", DataRateValue (DataRate (5000000)));
csma.SetChannelAttribute ("Delay", TimeValue (MilliSeconds (2)));
NetDeviceContainer csmaDevices = csma.Install (NodeContainer (csmaNodes.Get(0), olsrNodes.Get(1)));
// Note that with FixedRssLossModel, the positions below are not
// used for received signal strength.
MobilityHelper mobility;
Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();
positionAlloc->Add (Vector (0.0, 0.0, 0.0));
positionAlloc->Add (Vector (5.0, 0.0, 0.0));
mobility.SetPositionAllocator (positionAlloc);
mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
mobility.Install (olsrNodes);
OlsrHelper olsr;
// Specify Node B's csma device as a non-OLSR device.
olsr.ExcludeInterface (olsrNodes.Get (1), 2);
Ipv4StaticRoutingHelper staticRouting;
Ipv4ListRoutingHelper list;
list.Add (staticRouting, 0);
list.Add (olsr, 10);
InternetStackHelper internet_olsr;
internet_olsr.SetRoutingHelper (list);
internet_olsr.Install (olsrNodes);
InternetStackHelper internet_csma;
internet_csma.Install (csmaNodes);
Ipv4AddressHelper ipv4;
NS_LOG_INFO ("Assign IP Addresses.");
ipv4.SetBase ("10.1.1.0", "255.255.255.0");
ipv4.Assign (devices);
ipv4.SetBase ("172.16.1.0", "255.255.255.0");
ipv4.Assign (csmaDevices);
TypeId tid = TypeId::LookupByName ("ns3::UdpSocketFactory");
Ptr<Socket> recvSink = Socket::CreateSocket (csmaNodes.Get(0), tid);
InetSocketAddress local = InetSocketAddress (Ipv4Address::GetAny (), 80);
recvSink->Bind (local);
recvSink->SetRecvCallback (MakeCallback (&ReceivePacket));
Ptr<Socket> source = Socket::CreateSocket (olsrNodes.Get (0), tid);
InetSocketAddress remote = InetSocketAddress (Ipv4Address ("172.16.1.1"), 80);
source->Connect (remote);
// Obtain olsr::RoutingProtocol instance of gateway node
// (namely, node B) and add the required association
Ptr<Ipv4> stack = olsrNodes.Get (1) -> GetObject<Ipv4> ();
Ptr<Ipv4RoutingProtocol> rp_Gw = (stack->GetRoutingProtocol ());
Ptr<Ipv4ListRouting> lrp_Gw = DynamicCast<Ipv4ListRouting> (rp_Gw);
Ptr<olsr::RoutingProtocol> olsrrp_Gw;
for (uint32_t i = 0; i < lrp_Gw->GetNRoutingProtocols (); i++)
{
int16_t priority;
Ptr<Ipv4RoutingProtocol> temp = lrp_Gw->GetRoutingProtocol (i, priority);
if (DynamicCast<olsr::RoutingProtocol> (temp))
{
olsrrp_Gw = DynamicCast<olsr::RoutingProtocol> (temp);
}
}
// Create a special Ipv4StaticRouting instance for RoutingTableAssociation
// Even the Ipv4StaticRouting instance added to list may be used
Ptr<Ipv4StaticRouting> hnaEntries = Create<Ipv4StaticRouting> ();
if (assocMethod1)
{
// Add the required routes into the Ipv4StaticRouting Protocol instance
// and have the node generate HNA messages for all these routes
// which are associated with non-OLSR interfaces specified above.
hnaEntries->AddNetworkRouteTo (Ipv4Address ("172.16.1.0"), Ipv4Mask ("255.255.255.0"), uint32_t(2), uint32_t(1));
olsrrp_Gw->SetRoutingTableAssociation (hnaEntries);
}
if (assocMethod2)
{
// Specify the required associations directly.
olsrrp_Gw->AddHostNetworkAssociation (Ipv4Address ("172.16.1.0"), Ipv4Mask ("255.255.255.0"));
}
// Tracing
wifiPhy.EnablePcap ("olsr-hna", devices);
csma.EnablePcap ("olsr-hna", csmaDevices, false);
Simulator::ScheduleWithContext (source->GetNode ()->GetId (),
Seconds (15.0), &GenerateTraffic,
source, packetSize, numPackets, interPacketInterval);
Simulator::Stop (Seconds (20.0));
Simulator::Run ();
Simulator::Destroy ();
return 0;
}

4
examples/routing/wscript
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@@ -33,6 +33,10 @@ def build(bld):
['point-to-point', 'internet-stack', 'olsr'])
obj.source = 'simple-point-to-point-olsr.cc'
obj = bld.create_ns3_program('olsr-hna',
['core', 'simulator', 'mobility', 'wifi'])
obj.source = 'olsr-hna.cc'
obj = bld.create_ns3_program('nix-simple',
['point-to-point', 'internet-stack', 'nix-vector-routing'])
obj.source = 'nix-simple.cc'