ipv6-raw-test.cc

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/*
 * Copyright (c) 2012 Hajime Tazaki
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 * Author: Hajime Tazaki <tazaki@sfc.wide.ad.jp>
 */
/**
 * This is the test code for ipv6-raw-socket-impl.cc.
 */
 
#include "ns3/boolean.h"
#include "ns3/icmpv6-l4-protocol.h"
#include "ns3/inet6-socket-address.h"
#include "ns3/internet-stack-helper.h"
#include "ns3/ipv6-address-helper.h"
#include "ns3/ipv6-l3-protocol.h"
#include "ns3/ipv6-list-routing.h"
#include "ns3/ipv6-raw-socket-factory.h"
#include "ns3/ipv6-static-routing.h"
#include "ns3/log.h"
#include "ns3/node-container.h"
#include "ns3/node.h"
#include "ns3/simple-channel.h"
#include "ns3/simple-net-device-helper.h"
#include "ns3/simple-net-device.h"
#include "ns3/simulator.h"
#include "ns3/socket-factory.h"
#include "ns3/socket.h"
#include "ns3/test.h"
#include "ns3/uinteger.h"
 
#ifdef __WIN32__
#include "ns3/win32-internet.h"
#else
#include <netinet/in.h>
#include <sys/socket.h>
#endif
 
#include <limits>
#include <string>
#include <sys/types.h>
 
using namespace ns3;
 
/**
 * \ingroup internet-test
 *
 * \brief IPv6 RAW Socket Test
 */
class Ipv6RawSocketImplTest : public TestCase
{
    Ptr<Packet> m_receivedPacket;  //!< Received packet (1).
    Ptr<Packet> m_receivedPacket2; //!< Received packet (2).
 
    /**
     * \brief Send data.
     * \param socket The sending socket.
     * \param to Destination address.
     */
    void DoSendData(Ptr<Socket> socket, std::string to);
    /**
     * \brief Send data.
     * \param socket The sending socket.
     * \param to Destination address.
     */
    void SendData(Ptr<Socket> socket, std::string to);
 
  public:
    void DoRun() override;
    Ipv6RawSocketImplTest();
 
    /**
     * \brief Receive data.
     * \param socket The receiving socket.
     * \param packet The received packet.
     * \param from The sender.
     */
    void ReceivePacket(Ptr<Socket> socket, Ptr<Packet> packet, const Address& from);
    /**
     * \brief Receive data.
     * \param socket The receiving socket.
     * \param packet The received packet.
     * \param from The sender.
     */
    void ReceivePacket2(Ptr<Socket> socket, Ptr<Packet> packet, const Address& from);
    /**
     * \brief Receive data.
     * \param socket The receiving socket.
     */
    void ReceivePkt(Ptr<Socket> socket);
    /**
     * \brief Receive data.
     * \param socket The receiving socket.
     */
    void ReceivePkt2(Ptr<Socket> socket);
};
 
Ipv6RawSocketImplTest::Ipv6RawSocketImplTest()
    : TestCase("Ipv6 Raw socket implementation")
{
}
 
void
Ipv6RawSocketImplTest::ReceivePacket(Ptr<Socket> socket, Ptr<Packet> packet, const Address& from)
{
    m_receivedPacket = packet;
}
 
void
Ipv6RawSocketImplTest::ReceivePacket2(Ptr<Socket> socket, Ptr<Packet> packet, const Address& from)
{
    m_receivedPacket2 = packet;
}
 
void
Ipv6RawSocketImplTest::ReceivePkt(Ptr<Socket> socket)
{
    uint32_t availableData;
    availableData = socket->GetRxAvailable();
    m_receivedPacket = socket->Recv(2, MSG_PEEK);
    NS_TEST_ASSERT_MSG_EQ(m_receivedPacket->GetSize(), 2, "ReceivedPacket size is not equal to 2");
    m_receivedPacket = socket->Recv(std::numeric_limits<uint32_t>::max(), 0);
    NS_TEST_ASSERT_MSG_EQ(availableData,
                          m_receivedPacket->GetSize(),
                          "Received packet size is not equal to Rx buffer size");
}
 
void
Ipv6RawSocketImplTest::ReceivePkt2(Ptr<Socket> socket)
{
    uint32_t availableData;
    Address addr;
    availableData = socket->GetRxAvailable();
    m_receivedPacket2 = socket->Recv(2, MSG_PEEK);
    NS_TEST_ASSERT_MSG_EQ(m_receivedPacket2->GetSize(), 2, "ReceivedPacket size is not equal to 2");
    m_receivedPacket2 = socket->RecvFrom(std::numeric_limits<uint32_t>::max(), 0, addr);
    NS_TEST_ASSERT_MSG_EQ(availableData,
                          m_receivedPacket2->GetSize(),
                          "Received packet size is not equal to Rx buffer size");
    Inet6SocketAddress v6addr = Inet6SocketAddress::ConvertFrom(addr);
    NS_TEST_EXPECT_MSG_EQ(v6addr.GetIpv6(), Ipv6Address("2001:db8::2"), "recvfrom");
}
 
void
Ipv6RawSocketImplTest::DoSendData(Ptr<Socket> socket, std::string to)
{
    Address realTo = Inet6SocketAddress(Ipv6Address(to.c_str()), 0);
    NS_TEST_EXPECT_MSG_EQ(socket->SendTo(Create<Packet>(123), 0, realTo), 123, to);
}
 
void
Ipv6RawSocketImplTest::SendData(Ptr<Socket> socket, std::string to)
{
    m_receivedPacket = Create<Packet>();
    m_receivedPacket2 = Create<Packet>();
    Simulator::ScheduleWithContext(socket->GetNode()->GetId(),
                                   Seconds(0),
                                   &Ipv6RawSocketImplTest::DoSendData,
                                   this,
                                   socket,
                                   to);
    Simulator::Run();
}
 
void
Ipv6RawSocketImplTest::DoRun()
{
    // Create topology
 
    // Receiver Node
    Ptr<Node> rxNode = CreateObject<Node>();
    // Sender Node
    Ptr<Node> txNode = CreateObject<Node>();
 
    NodeContainer nodes(rxNode, txNode);
 
    SimpleNetDeviceHelper helperChannel1;
    helperChannel1.SetNetDevicePointToPointMode(true);
    NetDeviceContainer net1 = helperChannel1.Install(nodes);
 
    SimpleNetDeviceHelper helperChannel2;
    helperChannel2.SetNetDevicePointToPointMode(true);
    NetDeviceContainer net2 = helperChannel2.Install(nodes);
 
    InternetStackHelper internetv6;
    internetv6.Install(nodes);
 
    txNode->GetObject<Icmpv6L4Protocol>()->SetAttribute("DAD", BooleanValue(false));
    rxNode->GetObject<Icmpv6L4Protocol>()->SetAttribute("DAD", BooleanValue(false));
 
    Ipv6AddressHelper ipv6helper;
    Ipv6InterfaceContainer iic1 = ipv6helper.AssignWithoutAddress(net1);
    Ipv6InterfaceContainer iic2 = ipv6helper.AssignWithoutAddress(net2);
 
    Ptr<NetDevice> device;
    Ptr<Ipv6> ipv6;
    int32_t ifIndex;
    Ipv6InterfaceAddress ipv6Addr;
 
    ipv6 = rxNode->GetObject<Ipv6>();
    device = net1.Get(0);
    ifIndex = ipv6->GetInterfaceForDevice(device);
    ipv6Addr = Ipv6InterfaceAddress(Ipv6Address("2001:db8::1"), Ipv6Prefix(64));
    ipv6->AddAddress(ifIndex, ipv6Addr);
 
    device = net2.Get(0);
    ifIndex = ipv6->GetInterfaceForDevice(device);
    ipv6Addr = Ipv6InterfaceAddress(Ipv6Address("2001:db8:1::3"), Ipv6Prefix(64));
    ipv6->AddAddress(ifIndex, ipv6Addr);
 
    ipv6 = txNode->GetObject<Ipv6>();
    device = net1.Get(1);
    ifIndex = ipv6->GetInterfaceForDevice(device);
    ipv6Addr = Ipv6InterfaceAddress(Ipv6Address("2001:db8::2"), Ipv6Prefix(64));
    ipv6->AddAddress(ifIndex, ipv6Addr);
    ipv6->SetForwarding(ifIndex, true);
 
    device = net2.Get(1);
    ifIndex = ipv6->GetInterfaceForDevice(device);
    ipv6Addr = Ipv6InterfaceAddress(Ipv6Address("2001:db8:1::4"), Ipv6Prefix(64));
    ipv6->AddAddress(ifIndex, ipv6Addr);
    ipv6->SetForwarding(ifIndex, true);
 
    // Create the Ipv6 Raw sockets
    Ptr<SocketFactory> rxSocketFactory = rxNode->GetObject<Ipv6RawSocketFactory>();
    Ptr<Socket> rxSocket = rxSocketFactory->CreateSocket();
    NS_TEST_EXPECT_MSG_EQ(rxSocket->Bind(Inet6SocketAddress(Ipv6Address::GetAny(), 0)),
                          0,
                          "trivial");
    rxSocket->SetAttribute("Protocol", UintegerValue(Ipv6Header::IPV6_ICMPV6));
    rxSocket->SetRecvCallback(MakeCallback(&Ipv6RawSocketImplTest::ReceivePkt, this));
 
    Ptr<Socket> rxSocket2 = rxSocketFactory->CreateSocket();
    rxSocket2->SetRecvCallback(MakeCallback(&Ipv6RawSocketImplTest::ReceivePkt2, this));
    rxSocket2->SetAttribute("Protocol", UintegerValue(Ipv6Header::IPV6_ICMPV6));
    NS_TEST_EXPECT_MSG_EQ(rxSocket2->Bind(Inet6SocketAddress(Ipv6Address("2001:db8:1::3"), 0)),
                          0,
                          "trivial");
 
    Ptr<SocketFactory> txSocketFactory = txNode->GetObject<Ipv6RawSocketFactory>();
    Ptr<Socket> txSocket = txSocketFactory->CreateSocket();
    txSocket->SetAttribute("Protocol", UintegerValue(Ipv6Header::IPV6_ICMPV6));
 
    // ------ Now the tests ------------
 
    // Unicast test
    SendData(txSocket, "2001:db8::1");
 
    NS_TEST_EXPECT_MSG_EQ(m_receivedPacket->GetSize(), 163, "recv: 2001:db8::1");
    NS_TEST_EXPECT_MSG_EQ(m_receivedPacket2->GetSize(),
                          0,
                          "second interface should not receive it");
 
    m_receivedPacket->RemoveAllByteTags();
    m_receivedPacket2->RemoveAllByteTags();
 
    // Simple Link-local multicast test
    txSocket->Bind(Inet6SocketAddress(Ipv6Address("2001:db8::2"), 0));
    SendData(txSocket, "ff02::1");
    NS_TEST_EXPECT_MSG_EQ(m_receivedPacket->GetSize(), 163, "recv: ff02::1");
    NS_TEST_EXPECT_MSG_EQ(m_receivedPacket2->GetSize(),
                          0,
                          "second socket should not receive it (it is bound specifically to the "
                          "second interface's address");
 
    m_receivedPacket->RemoveAllByteTags();
    m_receivedPacket2->RemoveAllByteTags();
 
    // Broadcast test with multiple receiving sockets
 
    // When receiving broadcast packets, all sockets sockets bound to
    // the address/port should receive a copy of the same packet -- if
    // the socket address matches.
    rxSocket2->Dispose();
    rxSocket2 = rxSocketFactory->CreateSocket();
    rxSocket2->SetRecvCallback(MakeCallback(&Ipv6RawSocketImplTest::ReceivePkt2, this));
    rxSocket2->SetAttribute("Protocol", UintegerValue(Ipv6Header::IPV6_ICMPV6));
    NS_TEST_EXPECT_MSG_EQ(rxSocket2->Bind(Inet6SocketAddress(Ipv6Address::GetAny(), 0)),
                          0,
                          "trivial");
 
    SendData(txSocket, "ff02::1");
    NS_TEST_EXPECT_MSG_EQ(m_receivedPacket->GetSize(), 163, "recv: ff02::1");
    NS_TEST_EXPECT_MSG_EQ(m_receivedPacket2->GetSize(), 163, "recv: ff02::1");
 
    m_receivedPacket = nullptr;
    m_receivedPacket2 = nullptr;
 
    // Simple getpeername tests
 
    Address peerAddress;
    int err = txSocket->GetPeerName(peerAddress);
    NS_TEST_EXPECT_MSG_EQ(err, -1, "socket GetPeerName() should fail when socket is not connected");
    NS_TEST_EXPECT_MSG_EQ(txSocket->GetErrno(),
                          Socket::ERROR_NOTCONN,
                          "socket error code should be ERROR_NOTCONN");
 
    Inet6SocketAddress peer("2001:db8::1", 1234);
    err = txSocket->Connect(peer);
    NS_TEST_EXPECT_MSG_EQ(err, 0, "socket Connect() should succeed");
 
    err = txSocket->GetPeerName(peerAddress);
    NS_TEST_EXPECT_MSG_EQ(err, 0, "socket GetPeerName() should succeed when socket is connected");
    peer.SetPort(0);
    NS_TEST_EXPECT_MSG_EQ(peerAddress,
                          peer,
                          "address from socket GetPeerName() should equal the connected address");
 
    Simulator::Destroy();
}
 
/**
 * \ingroup internet-test
 *
 * \brief IPv6 RAW Socket TestSuite
 */
class Ipv6RawTestSuite : public TestSuite
{
  public:
    Ipv6RawTestSuite()
        : TestSuite("ipv6-raw", Type::UNIT)
    {
        AddTestCase(new Ipv6RawSocketImplTest, TestCase::Duration::QUICK);
    }
};
 
static Ipv6RawTestSuite g_ipv6rawTestSuite; //!< Static variable for test initialization