/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2007 Georgia Tech Research Corporation
*
* 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: Raj Bhattacharjea <raj.b@gatech.edu>
*/
/**
* This is the test code for tcp-socket-impl.cc, it was moved out of tcp-socket-impl.cc
* to be in an independent file for clarity purposes.
*/
#ifdef RUN_SELF_TESTS
#include "ns3/test.h"
#include "ns3/socket-factory.h"
#include "ns3/tcp-socket-factory.h"
#include "ns3/simulator.h"
#include "ns3/simple-channel.h"
#include "ns3/simple-net-device.h"
#include "ns3/drop-tail-queue.h"
#include "ns3/config.h"
#include "ipv4-end-point.h"
#include "arp-l3-protocol.h"
#include "ipv4-l3-protocol.h"
#include "icmpv4-l4-protocol.h"
#include "udp-l4-protocol.h"
#include "tcp-l4-protocol.h"
#include "ns3/ipv4-static-routing.h"
#include "ns3/ipv4-list-routing.h"
#include "ns3/node.h"
#include "ns3/inet-socket-address.h"
#include <string>
namespace ns3 {
static void
AddInternetStack (Ptr<Node> node)
{
//ARP
Ptr<ArpL3Protocol> arp = CreateObject<ArpL3Protocol> ();
node->AggregateObject(arp);
//IPV4
Ptr<Ipv4L3Protocol> ipv4 = CreateObject<Ipv4L3Protocol> ();
//Routing for Ipv4
Ptr<Ipv4ListRouting> ipv4Routing = CreateObject<Ipv4ListRouting> ();
ipv4->SetRoutingProtocol (ipv4Routing);
Ptr<Ipv4StaticRouting> ipv4staticRouting = CreateObject<Ipv4StaticRouting> ();
ipv4Routing->AddRoutingProtocol (ipv4staticRouting, 0);
node->AggregateObject(ipv4);
//ICMP
Ptr<Icmpv4L4Protocol> icmp = CreateObject<Icmpv4L4Protocol> ();
node->AggregateObject(icmp);
//UDP
Ptr<UdpL4Protocol> udp = CreateObject<UdpL4Protocol> ();
node->AggregateObject(udp);
//TCP
Ptr<TcpL4Protocol> tcp = CreateObject<TcpL4Protocol> ();
node->AggregateObject(tcp);
}
class TcpSocketImplTest: public Test
{
public:
TcpSocketImplTest ();
virtual bool RunTests (void);
private:
//test 1, which sends string "Hello world" server->client
void Test1 (void);
void Test1_HandleConnectionCreated (Ptr<Socket>, const Address &);
void Test1_HandleRecv (Ptr<Socket> sock);
//test 2, which sends a number of bytes server->client
void Test2 (uint32_t payloadSize);
void Test2_HandleConnectionCreated (Ptr<Socket>, const Address &);
void Test2_HandleRecv (Ptr<Socket> sock);
uint32_t test2_payloadSize;
//test 3, which makes sure the rx buffer is finite
void Test3 (uint32_t payloadSize);
void Test3_HandleConnectionCreated (Ptr<Socket>, const Address &);
void Test3_HandleRecv (Ptr<Socket> sock);
uint32_t test3_payloadSize;
//helpers to make topology construction easier
Ptr<Node> CreateInternetNode ();
Ptr<SimpleNetDevice> AddSimpleNetDevice (Ptr<Node>,const char*,const char*);
void SetupDefaultSim ();
//reset all of the below state for another run
void Reset ();
//all of the state this class needs; basically both ends of the connection,
//and this test kind of acts as an single application running on both nodes
//simultaneously
Ptr<Node> node0;
Ptr<Node> node1;
Ptr<SimpleNetDevice> dev0;
Ptr<SimpleNetDevice> dev1;
Ptr<SimpleChannel> channel;
Ptr<Socket> listeningSock;
Ptr<Socket> sock0;
Ptr<Socket> sock1;
uint32_t rxBytes0;
uint32_t rxBytes1;
uint8_t* rxPayload;
bool result;
};
TcpSocketImplTest::TcpSocketImplTest ()
: Test ("TcpSocketImpl"),
rxBytes0 (0),
rxBytes1 (0),
rxPayload (0),
result (true)
{
}
bool
TcpSocketImplTest::RunTests (void)
{
Test1();
if (!result) return false;
Test2(600);
if (!result) return false;
Test3(20000);
return result;
}
//-----------------------------------------------------------------------------
//test 1-----------------------------------------------------------------------
//-----------------------------------------------------------------------------
void
TcpSocketImplTest::Test1 ()
{
SetupDefaultSim ();
listeningSock->SetAcceptCallback
(MakeNullCallback<bool, Ptr< Socket >, const Address &> (),
MakeCallback(&TcpSocketImplTest::Test1_HandleConnectionCreated,this));
sock1->SetRecvCallback (MakeCallback(&TcpSocketImplTest::Test1_HandleRecv, this));
Simulator::Run ();
Simulator::Destroy ();
result = result && (rxBytes1 == 13);
result = result && (strcmp((const char*) rxPayload,"Hello World!") == 0);
Reset ();
}
void
TcpSocketImplTest::Test1_HandleConnectionCreated (Ptr<Socket> s, const Address & addr)
{
NS_ASSERT(s != listeningSock);
NS_ASSERT(sock0 == 0);
sock0 = s;
const uint8_t* hello = (uint8_t*)"Hello World!";
Ptr<Packet> p = Create<Packet> (hello, 13);
sock0->Send(p);
sock0->SetRecvCallback (MakeCallback(&TcpSocketImplTest::Test1_HandleRecv, this));
}
void
TcpSocketImplTest::Test1_HandleRecv (Ptr<Socket> sock)
{
NS_ASSERT (sock == sock0 || sock == sock1);
Ptr<Packet> p = sock->Recv();
uint32_t sz = p->GetSize();
if (sock == sock1)
{
rxBytes1 += sz;
rxPayload = new uint8_t[sz];
p->CopyData (rxPayload, sz);
}
else
{
NS_FATAL_ERROR ("Recv from unknown socket "<<sock);
}
}
//-----------------------------------------------------------------------------
//test 2-----------------------------------------------------------------------
//-----------------------------------------------------------------------------
void
TcpSocketImplTest::Test2 (uint32_t payloadSize)
{
test2_payloadSize = payloadSize;
SetupDefaultSim ();
listeningSock->SetAcceptCallback
(MakeNullCallback<bool, Ptr< Socket >, const Address &> (),
MakeCallback(&TcpSocketImplTest::Test2_HandleConnectionCreated,this));
sock1->SetRecvCallback (MakeCallback(&TcpSocketImplTest::Test2_HandleRecv, this));
Simulator::Run ();
Simulator::Destroy ();
result = result && (rxBytes1 == test2_payloadSize);
Reset ();
}
void
TcpSocketImplTest::Test2_HandleConnectionCreated (Ptr<Socket> s, const Address & addr)
{
NS_ASSERT(s != listeningSock);
NS_ASSERT(sock0 == 0);
sock0 = s;
Ptr<Packet> p = Create<Packet> (test2_payloadSize);
sock0->Send(p);
sock0->SetRecvCallback (MakeCallback(&TcpSocketImplTest::Test2_HandleRecv, this));
}
void
TcpSocketImplTest::Test2_HandleRecv (Ptr<Socket> sock)
{
NS_ASSERT (sock == sock0 || sock == sock1);
Ptr<Packet> p = sock->Recv();
uint32_t sz = p->GetSize();
if (sock == sock1)
{
rxBytes1 += sz;
}
else
{
NS_FATAL_ERROR ("Not supposed to be back traffic in test 2..."<<sock);
}
}
//-----------------------------------------------------------------------------
//test 3-----------------------------------------------------------------------
//-----------------------------------------------------------------------------
void
TcpSocketImplTest::Test3 (uint32_t payloadSize)
{
Config::SetDefault ("ns3::TcpSocket::RcvBufSize", UintegerValue (10000));
test3_payloadSize = payloadSize;
SetupDefaultSim ();
listeningSock->SetAcceptCallback
(MakeNullCallback<bool, Ptr< Socket >, const Address &> (),
MakeCallback(&TcpSocketImplTest::Test3_HandleConnectionCreated,this));
sock1->SetRecvCallback (MakeCallback(&TcpSocketImplTest::Test3_HandleRecv, this));
Simulator::Run ();
Simulator::Destroy ();
result = result && (rxBytes1 == test3_payloadSize);
Reset();
}
void
TcpSocketImplTest::Test3_HandleConnectionCreated (Ptr<Socket> s, const Address &)
{
NS_ASSERT(s != listeningSock);
NS_ASSERT(sock0 == 0);
sock0 = s;
Ptr<Packet> p = Create<Packet> (test3_payloadSize);
sock0->Send(p);
}
void
TcpSocketImplTest::Test3_HandleRecv (Ptr<Socket> sock)
{
NS_ASSERT_MSG (sock == sock1, "Not supposed to be back traffic in test 3... ");
if(sock->GetRxAvailable() >= 10000 ) //perform batch reads every 10000 bytes
{
Ptr<Packet> p = sock->Recv();
uint32_t sz = p->GetSize();
rxBytes1 += sz;
}
}
//-----------------------------------------------------------------------------
//helpers----------------------------------------------------------------------
//-----------------------------------------------------------------------------
Ptr<Node>
TcpSocketImplTest::CreateInternetNode ()
{
Ptr<Node> node = CreateObject<Node> ();
AddInternetStack (node);
return node;
}
Ptr<SimpleNetDevice>
TcpSocketImplTest::AddSimpleNetDevice (Ptr<Node> node, const char* ipaddr, const char* netmask)
{
Ptr<SimpleNetDevice> dev = CreateObject<SimpleNetDevice> ();
dev->SetAddress (Mac48Address::ConvertFrom (Mac48Address::Allocate ()));
node->AddDevice (dev);
Ptr<Ipv4> ipv4 = node->GetObject<Ipv4> ();
uint32_t ndid = ipv4->AddInterface (dev);
Ipv4InterfaceAddress ipv4Addr = Ipv4InterfaceAddress (Ipv4Address (ipaddr), Ipv4Mask (netmask));
ipv4->AddAddress (ndid, ipv4Addr);
ipv4->SetUp (ndid);
return dev;
}
void
TcpSocketImplTest::SetupDefaultSim ()
{
const char* netmask = "255.255.255.0";
const char* ipaddr0 = "192.168.1.1";
const char* ipaddr1 = "192.168.1.2";
node0 = CreateInternetNode ();
node1 = CreateInternetNode ();
dev0 = AddSimpleNetDevice (node0, ipaddr0, netmask);
dev1 = AddSimpleNetDevice (node1, ipaddr1, netmask);
channel = CreateObject<SimpleChannel> ();
dev0->SetChannel (channel);
dev1->SetChannel (channel);
Ptr<SocketFactory> sockFactory0 = node0->GetObject<TcpSocketFactory> ();
Ptr<SocketFactory> sockFactory1 = node1->GetObject<TcpSocketFactory> ();
listeningSock = sockFactory0->CreateSocket();
sock1 = sockFactory1->CreateSocket();
uint16_t port = 50000;
InetSocketAddress serverlocaladdr (Ipv4Address::GetAny(), port);
InetSocketAddress serverremoteaddr (Ipv4Address(ipaddr0), port);
listeningSock->Bind(serverlocaladdr);
listeningSock->Listen ();
sock1->Connect(serverremoteaddr);
}
void
TcpSocketImplTest::Reset ()
{
node0 = 0;
node1 = 0;
dev0 = 0;
dev1 = 0;
channel = 0;
listeningSock = 0;
sock0 = 0;
sock1 = 0;
rxBytes0 = 0;
rxBytes1 = 0;
delete[] rxPayload;
rxPayload = 0;
}
static TcpSocketImplTest gTcpSocketImplTest;
}//namespace ns3
#endif /* RUN_SELF_TESTS */