Bug 1712 - The IP (v4 and v6) forwarding needs a test

This commit is contained in:
Tommaso Pecorella
2013-06-30 14:10:49 +02:00
parent 172e7aff8f
commit a05600515e
4 changed files with 452 additions and 0 deletions

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@@ -37,6 +37,7 @@ Bugs fixed
- Bug 1700 - Ipv6RawSocket does not honor the bound address when sending packets
- Bug 1701 - Ipv6StaticRouting: the source address should match the destination scope
- Bug 1703 - Nodes don't react to a DAD
- Bug 1712 - The IP (v4 and v6) forwarding needs a test
- Bug 1718 - Ipv4StaticRouting log component is misspelled
- Bug 1719 - IPv6 default state is set to not forward packets
- Bug 1720 - IPv6 Fragmentation cause crashes

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@@ -0,0 +1,221 @@
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2013 Universita' di Firenze
*
* 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: Tommaso Pecorella <tommaso.pecorella@unifi.it>
*/
#include "ns3/test.h"
#include "ns3/socket-factory.h"
#include "ns3/udp-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/socket.h"
#include "ns3/boolean.h"
#include "ns3/log.h"
#include "ns3/node.h"
#include "ns3/inet-socket-address.h"
#include "ns3/arp-l3-protocol.h"
#include "ns3/ipv4-l3-protocol.h"
#include "ns3/icmpv4-l4-protocol.h"
#include "ns3/udp-l4-protocol.h"
#include "ns3/ipv4-static-routing.h"
#include <string>
#include <limits>
using 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<Ipv4StaticRouting> ipv4Routing = CreateObject<Ipv4StaticRouting> ();
ipv4->SetRoutingProtocol (ipv4Routing);
node->AggregateObject (ipv4);
node->AggregateObject (ipv4Routing);
//ICMP
Ptr<Icmpv4L4Protocol> icmp = CreateObject<Icmpv4L4Protocol> ();
node->AggregateObject (icmp);
//UDP
Ptr<UdpL4Protocol> udp = CreateObject<UdpL4Protocol> ();
node->AggregateObject (udp);
}
class Ipv4ForwardingTest : public TestCase
{
Ptr<Packet> m_receivedPacket;
void DoSendData (Ptr<Socket> socket, std::string to);
void SendData (Ptr<Socket> socket, std::string to);
public:
virtual void DoRun (void);
Ipv4ForwardingTest ();
void ReceivePkt (Ptr<Socket> socket);
};
Ipv4ForwardingTest::Ipv4ForwardingTest ()
: TestCase ("UDP socket implementation")
{
}
void Ipv4ForwardingTest::ReceivePkt (Ptr<Socket> socket)
{
uint32_t availableData;
availableData = socket->GetRxAvailable ();
m_receivedPacket = socket->Recv (std::numeric_limits<uint32_t>::max (), 0);
NS_ASSERT (availableData == m_receivedPacket->GetSize ());
}
void
Ipv4ForwardingTest::DoSendData (Ptr<Socket> socket, std::string to)
{
Address realTo = InetSocketAddress (Ipv4Address (to.c_str ()), 1234);
NS_TEST_EXPECT_MSG_EQ (socket->SendTo (Create<Packet> (123), 0, realTo),
123, "XXX");
}
void
Ipv4ForwardingTest::SendData (Ptr<Socket> socket, std::string to)
{
m_receivedPacket = Create<Packet> ();
Simulator::ScheduleWithContext (socket->GetNode ()->GetId (), Seconds (0),
&Ipv4ForwardingTest::DoSendData, this, socket, to);
Simulator::Run ();
}
void
Ipv4ForwardingTest::DoRun (void)
{
// Create topology
// Receiver Node
Ptr<Node> rxNode = CreateObject<Node> ();
AddInternetStack (rxNode);
Ptr<SimpleNetDevice> rxDev;
{ // first interface
rxDev = CreateObject<SimpleNetDevice> ();
rxDev->SetAddress (Mac48Address::ConvertFrom (Mac48Address::Allocate ()));
rxNode->AddDevice (rxDev);
Ptr<Ipv4> ipv4 = rxNode->GetObject<Ipv4> ();
uint32_t netdev_idx = ipv4->AddInterface (rxDev);
Ipv4InterfaceAddress ipv4Addr = Ipv4InterfaceAddress (Ipv4Address ("10.0.0.2"), Ipv4Mask (0xffff0000U));
ipv4->AddAddress (netdev_idx, ipv4Addr);
ipv4->SetUp (netdev_idx);
}
// Forwarding Node
Ptr<Node> fwNode = CreateObject<Node> ();
AddInternetStack (fwNode);
Ptr<SimpleNetDevice> fwDev1, fwDev2;
{ // first interface
fwDev1 = CreateObject<SimpleNetDevice> ();
fwDev1->SetAddress (Mac48Address::ConvertFrom (Mac48Address::Allocate ()));
fwNode->AddDevice (fwDev1);
Ptr<Ipv4> ipv4 = fwNode->GetObject<Ipv4> ();
uint32_t netdev_idx = ipv4->AddInterface (fwDev1);
Ipv4InterfaceAddress ipv4Addr = Ipv4InterfaceAddress (Ipv4Address ("10.0.0.1"), Ipv4Mask (0xffff0000U));
ipv4->AddAddress (netdev_idx, ipv4Addr);
ipv4->SetUp (netdev_idx);
}
{ // second interface
fwDev2 = CreateObject<SimpleNetDevice> ();
fwDev2->SetAddress (Mac48Address::ConvertFrom (Mac48Address::Allocate ()));
fwNode->AddDevice (fwDev2);
Ptr<Ipv4> ipv4 = fwNode->GetObject<Ipv4> ();
uint32_t netdev_idx = ipv4->AddInterface (fwDev2);
Ipv4InterfaceAddress ipv4Addr = Ipv4InterfaceAddress (Ipv4Address ("10.1.0.1"), Ipv4Mask (0xffff0000U));
ipv4->AddAddress (netdev_idx, ipv4Addr);
ipv4->SetUp (netdev_idx);
}
// Sender Node
Ptr<Node> txNode = CreateObject<Node> ();
AddInternetStack (txNode);
Ptr<SimpleNetDevice> txDev;
{
txDev = CreateObject<SimpleNetDevice> ();
txDev->SetAddress (Mac48Address::ConvertFrom (Mac48Address::Allocate ()));
txNode->AddDevice (txDev);
Ptr<Ipv4> ipv4 = txNode->GetObject<Ipv4> ();
uint32_t netdev_idx = ipv4->AddInterface (txDev);
Ipv4InterfaceAddress ipv4Addr = Ipv4InterfaceAddress (Ipv4Address ("10.1.0.2"), Ipv4Mask (0xffff0000U));
ipv4->AddAddress (netdev_idx, ipv4Addr);
ipv4->SetUp (netdev_idx);
Ptr<Ipv4StaticRouting> ipv4StaticRouting = txNode->GetObject<Ipv4StaticRouting> ();
ipv4StaticRouting->SetDefaultRoute(Ipv4Address("10.1.0.1"), netdev_idx);
}
// link the two nodes
Ptr<SimpleChannel> channel1 = CreateObject<SimpleChannel> ();
rxDev->SetChannel (channel1);
fwDev1->SetChannel (channel1);
Ptr<SimpleChannel> channel2 = CreateObject<SimpleChannel> ();
fwDev2->SetChannel (channel2);
txDev->SetChannel (channel2);
// Create the UDP sockets
Ptr<SocketFactory> rxSocketFactory = rxNode->GetObject<UdpSocketFactory> ();
Ptr<Socket> rxSocket = rxSocketFactory->CreateSocket ();
NS_TEST_EXPECT_MSG_EQ (rxSocket->Bind (InetSocketAddress (Ipv4Address ("10.0.0.2"), 1234)), 0, "trivial");
rxSocket->SetRecvCallback (MakeCallback (&Ipv4ForwardingTest::ReceivePkt, this));
Ptr<SocketFactory> txSocketFactory = txNode->GetObject<UdpSocketFactory> ();
Ptr<Socket> txSocket = txSocketFactory->CreateSocket ();
txSocket->SetAllowBroadcast (true);
// ------ Now the tests ------------
// Unicast test
SendData (txSocket, "10.0.0.2");
NS_TEST_EXPECT_MSG_EQ (m_receivedPacket->GetSize (), 123, "IPv4 Forwarding on");
m_receivedPacket->RemoveAllByteTags ();
m_receivedPacket = 0;
Ptr<Ipv4> ipv4 = fwNode->GetObject<Ipv4> ();
ipv4->SetAttribute("IpForward", BooleanValue (false));
SendData (txSocket, "10.0.0.2");
NS_TEST_EXPECT_MSG_EQ (m_receivedPacket->GetSize (), 0, "IPv4 Forwarding off");
Simulator::Destroy ();
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
class Ipv4ForwardingTestSuite : public TestSuite
{
public:
Ipv4ForwardingTestSuite () : TestSuite ("ipv4-forwarding", UNIT)
{
AddTestCase (new Ipv4ForwardingTest, TestCase::QUICK);
}
} g_ipv4forwardingTestSuite;

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@@ -0,0 +1,228 @@
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2013 Universita' di Firenze
*
* 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: Tommaso Pecorella <tommaso.pecorella@unifi.it>
*/
#include "ns3/test.h"
#include "ns3/socket-factory.h"
#include "ns3/udp-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/socket.h"
#include "ns3/boolean.h"
#include "ns3/log.h"
#include "ns3/node.h"
#include "ns3/inet6-socket-address.h"
#include "ns3/ipv6-l3-protocol.h"
#include "ns3/icmpv6-l4-protocol.h"
#include "ns3/udp-l4-protocol.h"
#include "ns3/ipv6-static-routing.h"
#include <string>
#include <limits>
using namespace ns3;
static void
AddInternetStack6 (Ptr<Node> node)
{
//IPV6
Ptr<Ipv6L3Protocol> ipv6 = CreateObject<Ipv6L3Protocol> ();
//Routing for Ipv6
Ptr<Ipv6StaticRouting> ipv6Routing = CreateObject<Ipv6StaticRouting> ();
ipv6->SetRoutingProtocol (ipv6Routing);
node->AggregateObject (ipv6);
node->AggregateObject (ipv6Routing);
//ICMP
Ptr<Icmpv6L4Protocol> icmp = CreateObject<Icmpv6L4Protocol> ();
node->AggregateObject (icmp);
//Ipv6 Extensions
ipv6->RegisterExtensions ();
ipv6->RegisterOptions ();
//UDP
Ptr<UdpL4Protocol> udp = CreateObject<UdpL4Protocol> ();
node->AggregateObject (udp);
}
class Ipv6ForwardingTest : public TestCase
{
Ptr<Packet> m_receivedPacket;
void DoSendData (Ptr<Socket> socket, std::string to);
void SendData (Ptr<Socket> socket, std::string to);
public:
virtual void DoRun (void);
Ipv6ForwardingTest ();
void ReceivePkt (Ptr<Socket> socket);
};
Ipv6ForwardingTest::Ipv6ForwardingTest ()
: TestCase ("UDP6 socket implementation")
{
}
void Ipv6ForwardingTest::ReceivePkt (Ptr<Socket> socket)
{
uint32_t availableData;
availableData = socket->GetRxAvailable ();
m_receivedPacket = socket->Recv (std::numeric_limits<uint32_t>::max (), 0);
NS_ASSERT (availableData == m_receivedPacket->GetSize ());
//cast availableData to void, to suppress 'availableData' set but not used
//compiler warning
(void) availableData;
}
void
Ipv6ForwardingTest::DoSendData (Ptr<Socket> socket, std::string to)
{
Address realTo = Inet6SocketAddress (Ipv6Address (to.c_str ()), 1234);
NS_TEST_EXPECT_MSG_EQ (socket->SendTo (Create<Packet> (123), 0, realTo),
123, "XXX");
}
void
Ipv6ForwardingTest::SendData (Ptr<Socket> socket, std::string to)
{
m_receivedPacket = Create<Packet> ();
Simulator::ScheduleWithContext (socket->GetNode ()->GetId (), Seconds (0),
&Ipv6ForwardingTest::DoSendData, this, socket, to);
Simulator::Run ();
}
void
Ipv6ForwardingTest::DoRun (void)
{
// Create topology
// Receiver Node
Ptr<Node> rxNode = CreateObject<Node> ();
AddInternetStack6 (rxNode);
Ptr<SimpleNetDevice> rxDev;
{ // first interface
rxDev = CreateObject<SimpleNetDevice> ();
rxDev->SetAddress (Mac48Address::ConvertFrom (Mac48Address::Allocate ()));
rxNode->AddDevice (rxDev);
Ptr<Ipv6> ipv6 = rxNode->GetObject<Ipv6> ();
uint32_t netdev_idx = ipv6->AddInterface (rxDev);
Ipv6InterfaceAddress ipv6Addr = Ipv6InterfaceAddress (Ipv6Address ("2001:1::2"), Ipv6Prefix (64));
ipv6->AddAddress (netdev_idx, ipv6Addr);
ipv6->SetUp (netdev_idx);
}
// Forwarding Node
Ptr<Node> fwNode = CreateObject<Node> ();
AddInternetStack6 (fwNode);
Ptr<SimpleNetDevice> fwDev1, fwDev2;
{ // first interface
fwDev1 = CreateObject<SimpleNetDevice> ();
fwDev1->SetAddress (Mac48Address::ConvertFrom (Mac48Address::Allocate ()));
fwNode->AddDevice (fwDev1);
Ptr<Ipv6> ipv6 = fwNode->GetObject<Ipv6> ();
uint32_t netdev_idx = ipv6->AddInterface (fwDev1);
Ipv6InterfaceAddress ipv6Addr = Ipv6InterfaceAddress (Ipv6Address ("2001:1::1"), Ipv6Prefix (64));
ipv6->AddAddress (netdev_idx, ipv6Addr);
ipv6->SetUp (netdev_idx);
}
Ipv6Address nextHop;
{ // second interface
fwDev2 = CreateObject<SimpleNetDevice> ();
fwDev2->SetAddress (Mac48Address::ConvertFrom (Mac48Address::Allocate ()));
fwNode->AddDevice (fwDev2);
Ptr<Ipv6> ipv6 = fwNode->GetObject<Ipv6> ();
uint32_t netdev_idx = ipv6->AddInterface (fwDev2);
Ipv6InterfaceAddress ipv6Addr = Ipv6InterfaceAddress (Ipv6Address ("2001:2::1"), Ipv6Prefix (64));
nextHop = ipv6->GetAddress(netdev_idx, 0).GetAddress();
ipv6->AddAddress (netdev_idx, ipv6Addr);
ipv6->SetUp (netdev_idx);
}
// Sender Node
Ptr<Node> txNode = CreateObject<Node> ();
AddInternetStack6 (txNode);
Ptr<SimpleNetDevice> txDev;
{
txDev = CreateObject<SimpleNetDevice> ();
txDev->SetAddress (Mac48Address::ConvertFrom (Mac48Address::Allocate ()));
txNode->AddDevice (txDev);
Ptr<Ipv6> ipv6 = txNode->GetObject<Ipv6> ();
uint32_t netdev_idx = ipv6->AddInterface (txDev);
Ipv6InterfaceAddress ipv6Addr = Ipv6InterfaceAddress (Ipv6Address ("2001:2::2"), Ipv6Prefix (64));
ipv6->AddAddress (netdev_idx, ipv6Addr);
ipv6->SetUp (netdev_idx);
Ptr<Ipv6StaticRouting> ipv6StaticRouting = txNode->GetObject<Ipv6StaticRouting> ();
ipv6StaticRouting->SetDefaultRoute(nextHop, netdev_idx);
}
// link the two nodes
Ptr<SimpleChannel> channel1 = CreateObject<SimpleChannel> ();
rxDev->SetChannel (channel1);
fwDev1->SetChannel (channel1);
Ptr<SimpleChannel> channel2 = CreateObject<SimpleChannel> ();
fwDev2->SetChannel (channel2);
txDev->SetChannel (channel2);
// Create the UDP sockets
Ptr<SocketFactory> rxSocketFactory = rxNode->GetObject<UdpSocketFactory> ();
Ptr<Socket> rxSocket = rxSocketFactory->CreateSocket ();
NS_TEST_EXPECT_MSG_EQ (rxSocket->Bind (Inet6SocketAddress (Ipv6Address ("2001:1::2"), 1234)), 0, "trivial");
rxSocket->SetRecvCallback (MakeCallback (&Ipv6ForwardingTest::ReceivePkt, this));
Ptr<SocketFactory> txSocketFactory = txNode->GetObject<UdpSocketFactory> ();
Ptr<Socket> txSocket = txSocketFactory->CreateSocket ();
txSocket->SetAllowBroadcast (true);
// ------ Now the tests ------------
// Unicast test
SendData (txSocket, "2001:1::2");
NS_TEST_EXPECT_MSG_EQ (m_receivedPacket->GetSize (), 123, "IPv6 Forwarding on");
m_receivedPacket->RemoveAllByteTags ();
m_receivedPacket = 0;
Ptr<Ipv6> ipv6 = fwNode->GetObject<Ipv6> ();
ipv6->SetAttribute("IpForward", BooleanValue (false));
SendData (txSocket, "2001:1::2");
NS_TEST_EXPECT_MSG_EQ (m_receivedPacket->GetSize (), 0, "IPv6 Forwarding off");
m_receivedPacket->RemoveAllByteTags ();
Simulator::Destroy ();
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
class Ipv6ForwardingTestSuite : public TestSuite
{
public:
Ipv6ForwardingTestSuite () : TestSuite ("ipv6-forwarding", UNIT)
{
AddTestCase (new Ipv6ForwardingTest, TestCase::QUICK);
}
} g_ipv6forwardingTestSuite;

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@@ -201,6 +201,7 @@ def build(bld):
'test/ipv4-raw-test.cc',
'test/ipv4-header-test.cc',
'test/ipv4-fragmentation-test.cc',
'test/ipv4-forwarding-test.cc',
'test/error-channel.cc',
'test/error-net-device.cc',
'test/ipv4-test.cc',
@@ -214,6 +215,7 @@ def build(bld):
'test/ipv6-address-generator-test-suite.cc',
'test/ipv6-dual-stack-test-suite.cc',
'test/ipv6-fragmentation-test.cc',
'test/ipv6-forwarding-test.cc',
'test/ipv6-address-helper-test-suite.cc',
'test/rtt-test.cc',
]