10#include "ns3/boolean.h"
11#include "ns3/config.h"
12#include "ns3/data-rate.h"
13#include "ns3/error-model.h"
14#include "ns3/inet-socket-address.h"
15#include "ns3/internet-stack-helper.h"
16#include "ns3/ipv4-address-helper.h"
17#include "ns3/ipv4-global-routing-helper.h"
19#include "ns3/node-container.h"
20#include "ns3/packet-sink-helper.h"
21#include "ns3/pcap-file.h"
22#include "ns3/point-to-point-helper.h"
23#include "ns3/pointer.h"
24#include "ns3/simulator.h"
25#include "ns3/string.h"
26#include "ns3/tcp-header.h"
27#include "ns3/tcp-socket-factory.h"
29#include "ns3/traffic-control-helper.h"
30#include "ns3/uinteger.h"
76 void DoRun()
override;
133 :
TestCase(
"Check the operation of the TCP state machine for several cases"),
135 m_totalTxBytes(20000),
145 :
TestCase(
"Check the operation of the TCP state machine for several cases"),
146 m_testCase(testCase),
147 m_totalTxBytes(20000),
163 std::ostringstream oss;
164 oss <<
"ns3tcp-state" <<
m_testCase <<
"-response-vectors.pcap";
177 "Wrong response vectors in directory: opening " <<
m_pcapFilename);
193 received->RemoveHeader(ipHeader);
194 received->RemoveHeader(tcpHeader);
208 received->RemoveHeader(ipHeader);
240 .
Read(expectedBuffer,
sizeof(expectedBuffer), tsSec, tsUsec, inclLen, origLen, readLen);
244 auto actual =
new uint8_t[readLen];
245 received->CopyData(actual, readLen);
247 int result = memcmp(actual, expectedBuffer, readLen);
253 expected->RemoveHeader(expectedHeader);
254 received->RemoveHeader(receivedHeader);
256 NS_LOG_DEBUG(
"Expected " << expectedHeader <<
" received: " << receivedHeader);
279 uint32_t toWrite = 1040 - dataOffset;
280 uint32_t txAvail = localSocket->GetTxAvailable();
281 toWrite = std::min(toWrite, left);
282 toWrite = std::min(toWrite, txAvail);
289 std::clog <<
"Submitting " << toWrite <<
" bytes to TCP socket" << std::endl;
291 int amountSent = localSocket->Send(
nullptr, toWrite, 0);
301 localSocket->Close();
330 std::string tcpModel(
"ns3::TcpNewReno");
362 internet.InstallAll();
379 ipv4.SetBase(
"10.1.3.0",
"255.255.255.0");
381 ipv4.SetBase(
"10.1.2.0",
"255.255.255.0");
392 uint16_t servPort = 50000;
420 std::list<uint32_t> dropListN0;
421 std::list<uint32_t> dropListN1;
422 std::string caseDescription;
427 caseDescription =
"Verify connection establishment";
431 caseDescription =
"Verify a bigger (100 pkts) transfer: Sliding window operation, etc.";
435 caseDescription =
"Survive a SYN lost";
436 dropListN0.push_back(0);
440 caseDescription =
"Survive a SYN+ACK lost";
441 dropListN1.push_back(0);
445 caseDescription =
"Survive a ACK (last packet in 3-way handshake) lost";
446 dropListN0.push_back(1);
450 caseDescription =
"Immediate FIN upon SYN_RCVD";
452 dropListN0.push_back(1);
457 caseDescription =
"Simulated simultaneous close";
458 dropListN1.push_back(5);
462 caseDescription =
"FIN check 1: Loss of initiator's FIN. Wait until app close";
464 dropListN0.push_back(7);
470 "FIN check 2: Loss responder's FIN. FIN will be resent after last ack timeout";
471 dropListN1.push_back(6);
479 errN0->SetList(dropListN0);
483 errN1->SetList(dropListN1);
486 std::ostringstream oss;
487 oss <<
"tcp-state" <<
m_testCase <<
"-test-case";
490 p2p.EnablePcapAll(oss.str());
491 p2p.EnableAsciiAll(oss.str());
497 *(osw->GetStream()) << std::setprecision(9) << std::fixed;
498 p2p.EnableAsciiAll(osw);
500 std::clog << std::endl
501 <<
"Running TCP test-case " <<
m_testCase <<
": " << caseDescription << std::endl;
526 SetDataDir(
"src/test/ns3tcp/response-vectors");
NodeContainer n1n2
Nodecontainer n1 + n2.
Tests of TCP implementation state machine behavior.
bool m_writeVectors
True if response vectors have to be written (and not read).
void StartFlow(Ptr< Socket > localSocket, Ipv4Address servAddress, uint16_t servPort)
Start transmitting a TCP flow.
void Ipv4L3Tx(std::string context, Ptr< const Packet > packet, Ptr< Ipv4 > ipv4, uint32_t interface)
Check that the transmitted packets are consistent with the trace.
uint32_t m_totalTxBytes
Total number of bytes to send.
uint32_t m_currentTxBytes
Current number of bytes sent.
std::string m_pcapFilename
The PCAP filename.
void DoTeardown() override
Implementation to do any local setup required for this TestCase.
bool m_writeLogging
True if write logging.
void Ipv4L3Rx(std::string context, Ptr< const Packet > packet, Ptr< Ipv4 > ipv4, uint32_t interface)
Check that the received packets are consistent with the trace.
void DoSetup() override
Implementation to do any local setup required for this TestCase.
void DoRun() override
Implementation to actually run this TestCase.
~Ns3TcpStateTestCase() override
void WriteUntilBufferFull(Ptr< Socket > localSocket, uint32_t txSpace)
Write to the socket until the buffer is full.
PcapFile m_pcapFile
The PCAP ffile.
bool m_needToClose
Check if the sending socket need to be closed.
bool m_writeResults
True if write PCAP files.
uint32_t m_testCase
Testcase number.
TCP implementation state machine behavior TestSuite.
holds a vector of ns3::Application pointers.
void Start(Time start) const
Start all of the Applications in this container at the start time given as a parameter.
void Stop(Time stop) const
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter.
Class for representing data rates.
aggregate IP/TCP/UDP functionality to existing Nodes.
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
Ipv4 addresses are stored in host order in this class.
static Ipv4Address GetAny()
static void PopulateRoutingTables()
Build a routing database and initialize the routing tables of the nodes in the simulation.
holds a vector of std::pair of Ptr<Ipv4> and interface index.
Ipv4Address GetAddress(uint32_t i, uint32_t j=0) const
holds a vector of ns3::NetDevice pointers
Ptr< NetDevice > Get(uint32_t i) const
Get the Ptr<NetDevice> stored in this container at a given index.
keep track of a set of node pointers.
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
void Add(const NodeContainer &nc)
Append the contents of another NodeContainer to the end of this container.
Ptr< Node > Get(uint32_t i) const
Get the Ptr<Node> stored in this container at a given index.
static void EnablePrinting()
Enable printing packets metadata.
A helper to make it easier to instantiate an ns3::PacketSinkApplication on a set of nodes.
A class representing a pcap file.
void Close()
Close the underlying file.
void Open(const std::string &filename, std::ios::openmode mode)
Create a new pcap file or open an existing pcap file.
uint32_t GetDataLinkType()
Returns the data link type field of the pcap file as defined by the network field in the pcap global ...
void Read(uint8_t *const data, uint32_t maxBytes, uint32_t &tsSec, uint32_t &tsUsec, uint32_t &inclLen, uint32_t &origLen, uint32_t &readLen)
Read next packet from file.
void Init(uint32_t dataLinkType, uint32_t snapLen=SNAPLEN_DEFAULT, int32_t timeZoneCorrection=ZONE_DEFAULT, bool swapMode=false, bool nanosecMode=false)
Initialize the pcap file associated with this object.
void Write(uint32_t tsSec, uint32_t tsUsec, const uint8_t *const data, uint32_t totalLen)
Write next packet to file.
Build a set of PointToPointNetDevice objects.
AttributeValue implementation for Pointer.
Smart pointer class similar to boost::intrusive_ptr.
static EventId Schedule(const Time &delay, FUNC f, Ts &&... args)
Schedule an event to expire after delay.
static void Destroy()
Execute the events scheduled with ScheduleDestroy().
static Time Now()
Return the current simulation virtual time.
static void Run()
Run the simulation.
static EventId ScheduleNow(FUNC f, Ts &&... args)
Schedule an event to expire Now.
static void Stop()
Tell the Simulator the calling event should be the last one executed.
static Ptr< Socket > CreateSocket(Ptr< Node > node, TypeId tid)
This method wraps the creation of sockets that is performed on a given node by a SocketFactory specif...
virtual int Close()=0
Close a socket.
Hold variables of type string.
static TypeId GetTypeId()
Get the type ID.
std::string CreateDataDirFilename(std::string filename)
Construct the full path to a file in the data directory.
void AddTestCase(TestCase *testCase, Duration duration=Duration::QUICK)
Add an individual child TestCase to this test suite.
bool IsStatusSuccess() const
Check if all tests passed.
void SetDataDir(std::string directory)
Set the data directory where reference trace files can be found.
Simulation virtual time values and global simulation resolution.
double GetSeconds() const
Get an approximation of the time stored in this instance in the indicated unit.
int64_t GetMicroSeconds() const
Get an approximation of the time stored in this instance in the indicated unit.
Build a set of QueueDisc objects.
QueueDiscContainer Install(NetDeviceContainer c)
uint16_t SetRootQueueDisc(const std::string &type, Args &&... args)
Helper function used to set a root queue disc of the given type and with the given attributes.
Hold an unsigned integer type.
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file,...
void SetDefault(std::string name, const AttributeValue &value)
void Connect(std::string path, const CallbackBase &cb)
#define NS_ABORT_MSG_UNLESS(cond, msg)
Abnormal program termination if a condition is false, with a message.
#define NS_FATAL_ERROR(msg)
Report a fatal error with a message and terminate.
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Ptr< T > CreateObject(Args &&... args)
Create an object by type, with varying number of constructor parameters.
Ptr< T > Create(Ts &&... args)
Create class instances by constructors with varying numbers of arguments and return them by Ptr.
#define NS_TEST_EXPECT_MSG_EQ(actual, limit, msg)
Test that an actual and expected (limit) value are equal and report if not.
Time Seconds(double value)
Construct a Time in the indicated unit.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
void LogComponentEnable(const std::string &name, LogLevel level)
Enable the logging output associated with that log component.
Callback< R, Args... > MakeCallback(R(T::*memPtr)(Args...), OBJ objPtr)
Build Callbacks for class method members which take varying numbers of arguments and potentially retu...
@ LOG_PREFIX_FUNC
Prefix all trace prints with function.
@ LOG_LEVEL_DEBUG
LOG_DEBUG and above.
@ LOG_LEVEL_INFO
LOG_INFO and above.
void LogComponentEnableAll(LogLevel level)
Enable the logging output for all registered log components.
const uint32_t PCAP_LINK_TYPE
Some large random number – we use to verify data was written by this program.
const bool WRITE_VECTORS
Set to true to write response vectors.
static Ns3TcpStateTestSuite g_ns3TcpLossTestSuite
Do not forget to allocate an instance of this TestSuite.
const bool WRITE_PCAP
Set to true to write out pcap.
const bool WRITE_LOGGING
Set to true to write logging.
const uint32_t PCAP_SNAPLEN
Don't bother to save much data.
Ptr< PacketSink > sink
Pointer to the packet sink application.