ns3 TcpSocket 例子

接上一篇RawSocket和 UdpSocket的例子

TcpSocket

#include <iostream>
#include <string>

#include "ns3/core-module.h"
#include "ns3/network-module.h"
#include "ns3/internet-module.h"
#include "ns3/applications-module.h"
#include "ns3/csma-module.h"
#include "ns3/csma-helper.h"

using namespace std;
using namespace ns3;

NS_LOG_COMPONENT_DEFINE("EleventhScriptExample");

//回調函數
static void recvCallback(Ptr<Socket> sock)
{
	Ptr<Packet> packet = sock->Recv();
	cout << "size:" << packet->GetSize() << endl;
}
void send(Ptr<Socket> sock)
{
	sock->Send(Create<Packet>(500));
	NS_LOG_INFO("aaaaaaaaaaa");
	NS_LOG_INFO(sock->GetErrno());
}

//Socket：服務端socket，unknownddress：客戶端地址
static bool
ConnectionRequest(Ptr<Socket> Socket,const Address &unknownAddress)
{
	NS_LOG_INFO("ConnectionRequest");
	NS_LOG_INFO(Socket->GetSocketType());
	NS_LOG_INFO(Socket);
	NS_LOG_INFO(unknownAddress);
	return true;
}

//Socket: 新socket，unknownAddress：客戶端地址
static void
NewConnectionCreated(Ptr<Socket> Socket,const Address &unknownAddress)
{
	NS_LOG_INFO("newConnectionCreated");
	NS_LOG_INFO(Socket->GetSocketType());
	NS_LOG_INFO(Socket);
	NS_LOG_INFO(unknownAddress);
    //這裏新socket需要設置recv回調
	rawSocket->SetRecvCallback(MakeCallback(&recvCallback));
}




int main(int argc, char *argv[])
{
	LogComponentEnable("EleventhScriptExample",LOG_LEVEL_ALL);
	NodeContainer nodes;
	nodes.Create(5);

	InternetStackHelper stack;
	stack.Install(nodes);

	CsmaHelper csmaHelper;
	NetDeviceContainer csmaNetDevices = csmaHelper.Install(nodes);

	csmaHelper.EnablePcap("haha",csmaNetDevices.Get(0),true);
	Ipv4AddressHelper addressHelper;
	addressHelper.SetBase("192.168.1.0", "255.255.255.0");
	Ipv4InterfaceContainer interfaces = addressHelper.Assign(csmaNetDevices);

	//server sockets
	TypeId tid = TypeId::LookupByName("ns3::TcpSocketFactory");
	Ptr<Socket> server = Socket::CreateSocket(nodes.Get(0), tid);
	InetSocketAddress addr = InetSocketAddress(Ipv4Address::GetAny(),10086);
    NS_LOG_INFO(addr);
	server->Bind(addr);
    //注意這裏
	server->Listen();
	NS_LOG_INFO(server);
    //注意這裏
	server->SetAcceptCallback(MakeCallback(&ConnectionRequest),MakeCallback(&NewConnectionCreated));


	//client sockets
	Ptr<Socket> client = Socket::CreateSocket(nodes.Get(4), tid);
	InetSocketAddress serverAddr = InetSocketAddress(interfaces.GetAddress(0), 10086);
	client->Connect(serverAddr);
	NS_LOG_INFO(client);
//	client->Send(Create<Packet>(500));

//	client->Close();

	Simulator::Schedule(Seconds(1),&send,client);
	Simulator::Schedule(Seconds(3),&send,client);
	Simulator::Schedule(Seconds(5),&send,client);
	Simulator::Schedule(Seconds(7),&send,client);
	Simulator::Stop(Seconds(9));
	Simulator::Run();
	Simulator::Destroy();


	return 0;
}

這裏注意幾個地方，tcp的 連接 會產生新 socket，所以這裏的 SetAcceptCallback 有點小特殊

0x 27 66 =  10086，所以可以得出，0x c0 01 = 49153，此即客戶端端口號

 

ns3 真複雜。

我的畢設還遙遙無期，我的考研複試還沒有看，哎。。。