/// <summary>
/// Initializes networking
/// </summary>
private static unsafe void initNetworking()
{
// Networking
Network.Init();
Route.Init();
// Networking protocols
IPV4.Init();
ICMP.Init();
// Transport protocols
UDP.Init();
TCP.Init();
ARP.Init();
DHCP.Init();
// Network drivers
E1000.Init();
PCNet2.Init();
RTL8139.Init();
DHCP.Discover();
//Thread packetHandler = new Thread();
//packetHandler.Context.CreateNewContext(Util.MethodToPtr(HttpTest), 0, null, true);
//Tasking.KernelTask.AddThread(packetHandler);
}
// original post: http://www.java2s.com/Code/CSharp/Network/SimplePing.htm
// modified by jambel
// TCP Ping
// original post: http://stackoverflow.com/questions/26067342/how-to-implement-psping-tcp-ping-in-c-sharp
static bool altPing(string endPoint)
{
try
{
IPHostEntry hostEntry;
IPAddress hostAddress;
IPEndPoint iep;
if (resolveHostEntry(endPoint))
{
hostEntry = Dns.GetHostEntry(endPoint);
hostAddress = hostEntry.AddressList[0];
iep = new IPEndPoint(hostAddress, 0);
}
else
iep = new IPEndPoint(IPAddress.Parse(endPoint), 0);
var data = new byte[1024];
var host = new Socket(iep.AddressFamily, SocketType.Raw, ProtocolType.Icmp);
EndPoint ep = iep;
var packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("test packet");
Buffer.BlockCopy(data, 0, packet.Message, 0, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.GetChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
host.SendTo(packet.GetBytes(), packetsize, SocketFlags.None, iep);
data = new byte[1024];
int recv = host.ReceiveFrom(data, ref ep);
/*ICMP response = new ICMP(data, recv);
Console.WriteLine("response from: {0}", ep.ToString());
Console.WriteLine(" Type {0}", response.Type);
Console.WriteLine(" Code: {0}", response.Code);
int Identifier = BitConverter.ToInt16(response.Message, 0);
int Sequence = BitConverter.ToInt16(response.Message, 2);
Console.WriteLine(" Identifier: {0}", Identifier);
Console.WriteLine(" Sequence: {0}", Sequence);
string stringData = Encoding.ASCII.GetString(response.Message, 0, response.MessageSize);
Console.WriteLine(" data: {0}", stringData);*/
host.Close();
return true;
}
catch (SocketException)
{
return false;
}
}
static void Tracert(String remoteHost)
{
//начальная инициализация
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPHostEntry iphe = Dns.GetHostEntry(remoteHost);
IPEndPoint iep = new IPEndPoint(iphe.AddressList[0], 0);
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP
{
//формирование пакета
Type = 0x08,
Code = 0x00,
Identifier = 1,
SeqNumber = 1,
Message = ToByteArr("Test")
};
packet.MessageSize = packet.Message.Length + MsgHeaderSize;
int packetsize = packet.MessageSize + HeaderSize;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
for (int i = 1; i < 50; i++)
{
if (SendRecieve(i, host, packet, ep, iep, packetsize))
{
break;
}
}
host.Close();
}
public override bool send(IPPayload payload)
{
ICMP icmp = (ICMP)payload;
switch (icmp.Type)
{
case 8:
//Code == zero
Console.Error.WriteLine("Send Ping");
lock (sentry)
{
open += 1;
}
PingData PD;
PD.Data = icmp.Data;
PD.HeaderData = icmp.HeaderData;
ping.SendAsync(new IPAddress(DestIP), PD);
break;
default:
throw new NotImplementedException("Unsupported ICMP Type" + icmp.Type);
}
return(true);
}
// Original post: http://www.java2s.com/Code/CSharp/Network/SimplePing.htm
// Modified by jambel
// TCP Ping
// Original post: http://stackoverflow.com/questions/26067342/how-to-implement-psping-tcp-ping-in-c-sharp
static bool altPing(string endPoint)
{
try {
IPHostEntry hostEntry;
IPAddress hostAddress;
IPEndPoint iep;
if (resolveHostEntry(endPoint))
{
hostEntry = Dns.GetHostEntry(endPoint);
hostAddress = hostEntry.AddressList[0];
iep = new IPEndPoint(hostAddress, 0);
}
else
{
iep = new IPEndPoint(IPAddress.Parse(endPoint), 0);
}
var data = new byte[1024];
var host = new Socket(iep.AddressFamily, SocketType.Raw, ProtocolType.Icmp);
EndPoint ep = iep;
var packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("test packet");
Buffer.BlockCopy(data, 0, packet.Message, 0, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.GetChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
host.SendTo(packet.GetBytes(), packetsize, SocketFlags.None, iep);
data = new byte[1024];
int recv = host.ReceiveFrom(data, ref ep);
/*ICMP response = new ICMP(data, recv);
* Console.WriteLine("response from: {0}", ep.ToString());
* Console.WriteLine(" Type {0}", response.Type);
* Console.WriteLine(" Code: {0}", response.Code);
* int Identifier = BitConverter.ToInt16(response.Message, 0);
* int Sequence = BitConverter.ToInt16(response.Message, 2);
* Console.WriteLine(" Identifier: {0}", Identifier);
* Console.WriteLine(" Sequence: {0}", Sequence);
* string stringData = Encoding.ASCII.GetString(response.Message, 0, response.MessageSize);
* Console.WriteLine(" data: {0}", stringData);*/
host.Close();
return(true);
}
catch (SocketException) {
return(false);
}
}
public void PingCompleate(object sender, PingCompletedEventArgs e)
{
Log_Verb("Ping Complete");
PingData seq = (PingData)e.UserState;
PingReply rep = e.Reply;
Ping ping = (Ping)sender;
lock (sentry)
{
pings.Remove(ping);
ping.Dispose();
switch (rep.Status)
{
case IPStatus.Success:
ICMP retICMP = new ICMP(seq.Data);
retICMP.HeaderData = seq.HeaderData;
retICMP.Type = 0; //echo reply
recvBuff.Add(retICMP);
break;
default:
//ping failed
open -= 1;
if (open == 0)
{
RaiseEventConnectionClosed();
}
break;
}
}
}
static void Main(string[] args)
{
byte[] data = new byte[1024];
int recv;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPEndPoint iep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 0);
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("test packet");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
//Console.WriteLine(Encoding.ASCII.GetString(data));
}
catch (SocketException)
{
Console.WriteLine("No response from remote host");
Console.ReadKey();
return;
}
ICMP response = new ICMP(data, recv);
Console.WriteLine("response from: {0}", ep.ToString());
Console.WriteLine(" Type {0}", response.Type);
Console.WriteLine(" Code: {0}", response.Code);
int Identifier = BitConverter.ToInt16(response.Message, 0);
int Sequence = BitConverter.ToInt16(response.Message, 2);
Console.WriteLine(" Identifier: {0}", Identifier);
Console.WriteLine(" Sequence: {0}", Sequence);
string stringData = Encoding.ASCII.GetString(response.Message, 4, response.MessageSize - 4);
Console.WriteLine(" data: {0}", stringData);
Console.ReadKey();
host.Close();
}
public void Icmp_for_StartPing_onSuccess()
{
Assert.DoesNotThrow(() =>
{
var icmp = new ICMP(_configProtocol);
icmp.StartAsyncPing();
});
}
public bool TryConnect(string address)
{
byte[] data = new byte[1024];
int recv;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw,
ProtocolType.Icmp);
try
{
IPHostEntry e = Dns.GetHostEntry(address);
if (e == null || e.AddressList.Length == 0 || e.AddressList[0].ToString() == null)
{
return(false);
}
else
{
address = e.AddressList[0].ToString();
if (address == "::1")
{
address = "127.0.0.1";
}
}
IPEndPoint iep = new IPEndPoint(IPAddress.Parse(address), 0);
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("test packet");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
}
catch (SocketException)
{
return(false);
}
}
finally
{
try { host.Close(); }
catch { }
}
return(true);
}
public static void Main(string[] argv)
{
byte[] data = new byte[1024];
int recv, timestart, timestop;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPHostEntry iphe = Dns.Resolve("www.google.ru");
IPEndPoint iep = new IPEndPoint(iphe.AddressList[0], 0);
EndPoint ep = iep;
ICMP packet = new ICMP();
// Убрано заполнение в ICMPclass
int packetsize = packet.MessageSize + 4;
//ushort chcksum = packet.getChecksum();
//packet.Checksum = packet.getChecksum();
//packet.getChecksum();
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
int badcount = 0;
for (int i = 1; i < 50; i++)
{
host.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.IpTimeToLive, i);
timestart = Environment.TickCount;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
timestop = Environment.TickCount;
ICMP response = new ICMP(data, recv);
if (response.Type == 11)
{
Console.WriteLine("{0} {1} {2}ms", i, ep.ToString(), timestop - timestart);
}
if (response.Type == 0)
{
Console.WriteLine("{0} {1} {2}ms.", ep.ToString(), i, timestop - timestart);
break;
}
badcount = 0;
}
catch (SocketException)
{
Console.WriteLine("{0} No response from remote host", i);
badcount++;
if (badcount == 5)
{
Console.WriteLine("Unable to contact remote host");
break;
}
}
}
host.Close();
Console.ReadLine();
}
public void Icmp_for_StartPing_onEmptyConfigProtocol()
{
Assert.Throws <ArgumentException>(() =>
{
var configProtocol = new ConfigProtocol();
configProtocol.AttributesProtocol = new Dictionary <string, string>();
var icmp = new ICMP(configProtocol);
icmp.StartAsyncPing();
});
}
public Packet Reply(string IP)
{
GameObject pingPacket = Instantiate(packetprefab);
Packet packet = pingPacket.GetComponent<Packet>();
packet.CreatePacket("PING");
packet.internet.setIP(IP, "dest");
packet.internet.setIP(GetComponent<PC>().IP, "src");
packet.gameObject.AddComponent<ICMP>();
ICMP icmp = packet.GetComponent<ICMP>();
icmp.CreateICMP("REPLY", IP);
return packet;
}
private void Ping()
{
byte[] data = new byte[1024];
int recv;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPEndPoint iep = new IPEndPoint(IPAddress.Parse(roverIPAddress), 0); //ICMP doesn't use port numbers
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("ping");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 1000);
while (true)
{
DateTime sentAt = DateTime.Now;
DateTime recvdAt = sentAt;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
recvdAt = DateTime.Now;
ICMP response = new ICMP(data, recv);
DateTime recvd = DateTime.Now;
ConnectedToRover = true;
PingRTT = (long)(recvdAt - sentAt).TotalMilliseconds;
}
catch (SocketException)
{
ConnectedToRover = false;
PingRTT = 0;
}
Thread.Sleep(500);
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: private void sendICMPEchoResponse(pspsharp.network.protocols.NetPacket packet, pspsharp.network.protocols.EtherFrame frame, pspsharp.network.protocols.IPv4 ipv4, pspsharp.network.protocols.ICMP icmp) throws java.io.EOFException
private void sendICMPEchoResponse(NetPacket packet, EtherFrame frame, IPv4 ipv4, ICMP icmp)
{
bool reachable = false;
try
{
InetAddress inetAddress = InetAddress.getByAddress(ipv4.destinationIPAddress);
// Timeout after 1 second
reachable = inetAddress.isReachable(null, ipv4.timeToLive, 1000);
}
catch (UnknownHostException)
{
}
catch (IOException)
{
}
if (reachable)
{
// See https://en.wikipedia.org/wiki/Ping_(networking_utility)
EtherFrame answerFrame = new EtherFrame(frame);
answerFrame.swapSourceAndDestination();
IPv4 answerIPv4 = new IPv4(ipv4);
answerIPv4.swapSourceAndDestination();
answerIPv4.timeToLive--; // When a packet arrives at a router, the router decreases the TTL FieldInfo.
ICMP answerIcmp = new ICMP(icmp);
answerIcmp.type = ICMP.ICMP_CONTROL_ECHO_REPLY;
answerIcmp.computeChecksum();
answerIPv4.totalLength = answerIPv4.sizeOf() + answerIcmp.sizeOf();
answerIPv4.computeChecksum();
// Write the different headers in sequence
NetPacket answerPacket = new NetPacket(BUFFER_SIZE);
answerFrame.write(answerPacket);
answerIPv4.write(answerPacket);
answerIcmp.write(answerPacket);
sendPacket(answerPacket);
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: private void processMessageDatagramICMP(pspsharp.network.protocols.NetPacket packet, pspsharp.network.protocols.EtherFrame frame, pspsharp.network.protocols.IPv4 ipv4) throws java.io.EOFException
private void processMessageDatagramICMP(NetPacket packet, EtherFrame frame, IPv4 ipv4)
{
ICMP icmp = new ICMP();
icmp.read(packet);
//if (log.DebugEnabled)
{
Console.WriteLine(string.Format("processMessageDatagramICMP {0}", icmp));
}
switch (icmp.type)
{
case ICMP_CONTROL_ECHO_REQUEST:
sendICMPEchoResponse(packet, frame, ipv4, icmp);
break;
default:
Console.WriteLine(string.Format("processMessageDatagramICMP unknown type=0x{0:X}, code=0x{1:X}", icmp.type, icmp.code));
break;
}
}
public void PingCompleate(object sender, System.Net.NetworkInformation.PingCompletedEventArgs e)
{
PingData Seq = (PingData)e.UserState;
PingReply rep = e.Reply;
lock (sentry)
{
switch (rep.Status)
{
case IPStatus.Success:
ICMP retICMP = new ICMP(Seq.Data);
retICMP.HeaderData = Seq.HeaderData;
retICMP.Type = 0; //echo reply
recvbuff.Add(retICMP);
break;
default:
open -= 1;
break;
}
}
}
//Основная программа
static void MyTracert(String remoteHost)
{
//начальная инициализация
byte[] data = new byte[1024];
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPHostEntry iphe = Dns.Resolve(remoteHost);
IPEndPoint iep = new IPEndPoint(iphe.AddressList[0], 0);
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
//формирование пакета
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
packet.Identifier = 1;
packet.SeqNumber = 1;
packet.Message = ToByteArr("test");
packet.MessageSize = packet.Message.Length + MsgHeaderSize;
int packetsize = packet.MessageSize + HeaderSize;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
//цикл переборки ttl и обработки ответов
for (int i = 1; i < 256; i++)
{
if (SendRecieve(i, host, packet, ep, iep, packetsize))
{
break;
}
}
host.Close();
}
public static void Main(string[] argv)
{
int trys = 3;
Console.Write("tracert ");
string address = Console.ReadLine();
byte[] data = new byte[1024];
int recv, timestart, timestop;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
bool flagHostEntry = false;
while (!flagHostEntry)
{
try
{
IPHostEntry temp = Dns.GetHostEntry(address);
flagHostEntry = true;
}
catch (Exception)
{
Console.Write("\nВведен неверный адрес, попробуйте еще раз: ");
address = Console.ReadLine();
};
}
;
IPHostEntry iphe = Dns.GetHostEntry(address);
IPEndPoint iep = new IPEndPoint(iphe.AddressList[0], 0);
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes(1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes(1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("test packet");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 1000);
try
{
if (Dns.GetHostEntry(address).HostName == address)
{
Console.WriteLine("\nТрассировка маршрута к {0} [{1}]", address, Dns.GetHostEntry(address).AddressList[0].ToString());
}
else
{
Console.WriteLine("\nТрассировка маршрута к {0} [{1}]", Dns.GetHostEntry(address).HostName, address);
}
}
catch (Exception)
{
Console.WriteLine("\nТрассировка маршрута к {0}", address);
};
Console.WriteLine("с максимальным числом прыжков 30:\n");
int falsecount = 0;
bool flagExit = true;
for (int i = 1; i <= 30 && flagExit; i++)
{
Console.Write("{0,3} ", i);
for (int j = 0; j < trys; j++)
{
host.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.IpTimeToLive, i);
timestart = Environment.TickCount;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
timestop = Environment.TickCount;
ICMP response = new ICMP(data, recv);
if (response.Type == 11)
{
if (timestop == timestart)
{
Console.Write(" 1 мс");
}
else
{
Console.Write("{0,5} мс", timestop - timestart);
}
}
if (response.Type == 0)
{
if (timestop == timestart)
{
Console.Write(" 1 мс");
}
else
{
Console.Write("{0,5} мс", timestop - timestart);
}
flagExit = false;
}
falsecount = 0;
}
catch (SocketException)
{
Console.Write(" * ");
falsecount++;
}
}
if (falsecount >= trys)
{
Console.WriteLine(" Превышен интервал ожидания для запроса.");
if (falsecount == trys * 3)
{
Console.WriteLine("\nНевозможно связаться с удаленным хостом.");
flagExit = false;
}
}
else
{
try
{
string strEndPoint = Regex.Replace(ep.ToString(), ":.*", "");
Console.Write(" {0} [{1}]", Dns.GetHostEntry(strEndPoint).HostName, strEndPoint);
}
catch (Exception)
{
Console.Write(" {0}", Regex.Replace(ep.ToString(), ":.*", ""));
};
Console.WriteLine();
}
}
host.Close();
Console.WriteLine("\nТрассировка завершина.\n");
Console.Read();
}
static Boolean SendRecieve(int i, Socket host, ICMP packet, EndPoint ep, IPEndPoint iep, int packetsize)
{
int badcount = 0;
byte[] data;
int pcklength;
host.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.IpTimeToLive, i);
try
{
DateTime timestart = DateTime.Now;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
data = new byte[1024];
pcklength = host.ReceiveFrom(data, ref ep);
TimeSpan timestop1 = DateTime.Now - timestart;
ICMP response1 = new ICMP(data, pcklength);
timestart = DateTime.Now;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
data = new byte[1024];
pcklength = host.ReceiveFrom(data, ref ep);
TimeSpan timestop2 = DateTime.Now - timestart;
ICMP response2 = new ICMP(data, pcklength);
timestart = DateTime.Now;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
data = new byte[1024];
pcklength = host.ReceiveFrom(data, ref ep);
TimeSpan timestop3 = DateTime.Now - timestart;
ICMP response3 = new ICMP(data, pcklength);
if (response1.Type == 11 || response2.Type == 11 || response3.Type == 11)
{
Console.WriteLine(i + ": " + ep.ToString() + " " + (timestop1.Milliseconds.ToString()) + " " + (timestop2.Milliseconds.ToString()) + " " + (timestop3.Milliseconds.ToString()) + " мс");
return(false);
}
if (response1.Type == 0 || response2.Type == 0 || response3.Type == 0)
{
Console.WriteLine(i + ": " + ep.ToString() + " достигнут за " + i + " прыжков, " + (timestop1.Milliseconds.ToString()) + " " + (timestop2.Milliseconds.ToString()) + " " + (timestop3.Milliseconds.ToString()) + " мс");
return(true);
}
return(true);
}
catch (SocketException)
{
Console.WriteLine(i + ": нет ответа от " + ep + " ( dest: " + iep + ")");
badcount++;
if (badcount == 4)
{
Console.WriteLine("Не удалось установить соединение\n");
return(true);
}
return(false);
}
finally
{
try
{
string ip = ep.ToString();
ip = ip.Remove(ip.Length - 2, 2);
if (!ip.StartsWith("192.168"))
{
IPAddress addr = IPAddress.Parse(ip);
IPHostEntry entry = Dns.GetHostEntry(addr);
Console.WriteLine(entry.HostName);
}
Console.WriteLine();
}
catch (SocketException)
{
Console.WriteLine("Нет DNS ответа.\n");
}
}
}
public override bool Send(IPPayload payload)
{
ICMP icmp = (ICMP)payload;
switch (icmp.Type)
{
case 8: //Echo
//Code == zero
Log_Verb("Send Ping");
lock (sentry)
{
open += 1;
}
PingData pd;
pd.Data = icmp.Data;
pd.HeaderData = icmp.HeaderData;
Ping nPing = new Ping();
nPing.PingCompleted += PingCompleate;
lock (sentry)
{
pings.Add(nPing);
}
nPing.SendAsync(new IPAddress(DestIP), pd);
System.Threading.Thread.Sleep(1); //Hack Fix
break;
case 3: //
switch (icmp.Code)
{
case 3:
Log_Error("Recived Packet Rejected, Port Closed");
IPPacket retPkt = new IPPacket(icmp);
byte[] srvIP = retPkt.SourceIP;
byte prot = retPkt.Protocol;
UInt16 srvPort = 0;
UInt16 ps2Port = 0;
switch (prot)
{
case (byte)IPType.TCP:
TCP tcp = (TCP)retPkt.Payload;
srvPort = tcp.SourcePort;
ps2Port = tcp.DestinationPort;
break;
case (byte)IPType.UDP:
UDP udp = (UDP)retPkt.Payload;
srvPort = udp.SourcePort;
ps2Port = udp.DestinationPort;
break;
}
ConnectionKey Key = new ConnectionKey();
Key.IP0 = srvIP[0]; Key.IP1 = srvIP[1]; Key.IP2 = srvIP[2]; Key.IP3 = srvIP[3];
Key.Protocol = prot;
Key.PS2Port = ps2Port;
Key.SRVPort = srvPort;
//is from NormalPort
Session s;
connections.TryGetValue(Key, out s);
if (s != null)
{
s.Reset();
Log_Info("Reset Rejected Connection");
break;
}
//Is from FixedPort
Key.IP0 = 0; Key.IP1 = 0; Key.IP2 = 0; Key.IP3 = 0;
Key.SRVPort = 0;
connections.TryGetValue(Key, out s);
if (s != null)
{
s.Reset();
Log_Info("Reset Rejected Connection");
break;
}
Log_Error("Failed To Reset Rejected Connection");
break;
default:
throw new NotImplementedException("Unsupported ICMP Code For Destination Unreachable" + icmp.Code);
}
break;
default:
throw new NotImplementedException("Unsupported ICMP Type" + icmp.Type);
}
return(true);
}
private void Ping()
{
byte[] data = new byte[1024];
int recv;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPEndPoint iep = new IPEndPoint(IPAddress.Parse(roverIPAddress), 0); //ICMP doesn't use port numbers
EndPoint ep = (EndPoint)iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes((short)1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("ping");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 1000);
while (true)
{
DateTime sentAt = DateTime.Now;
DateTime recvdAt = sentAt;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
recvdAt = DateTime.Now;
ICMP response = new ICMP(data, recv);
DateTime recvd = DateTime.Now;
ConnectedToRover = true;
PingRTT = (long)(recvdAt - sentAt).TotalMilliseconds;
}
catch (SocketException)
{
ConnectedToRover = false;
PingRTT = 0;
}
Thread.Sleep(500);
}
}
public static void Main(string[] argv)
{
byte[] data = new byte[1024];
int recv, timestart, timestop;
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp);
IPEndPoint iep = new IPEndPoint(IPAddress.Parse("8.8.8.8"), 0);
EndPoint ep = iep;
ICMP packet = new ICMP();
packet.Type = 0x08;
packet.Code = 0x00;
packet.Checksum = 0;
Buffer.BlockCopy(BitConverter.GetBytes(1), 0, packet.Message, 0, 2);
Buffer.BlockCopy(BitConverter.GetBytes(1), 0, packet.Message, 2, 2);
data = Encoding.ASCII.GetBytes("test packet");
Buffer.BlockCopy(data, 0, packet.Message, 4, data.Length);
packet.MessageSize = data.Length + 4;
int packetsize = packet.MessageSize + 4;
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 3000);
int badcount = 0;
for (int i = 1; i < 50; i++)
{
host.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.IpTimeToLive, i);
timestart = Environment.TickCount;
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
try
{
data = new byte[1024];
recv = host.ReceiveFrom(data, ref ep);
timestop = Environment.TickCount;
ICMP response = new ICMP(data, recv);
if (response.Type == 11)
{
Console.WriteLine("hop {0}: response from {1}, {2}ms", i, ep.ToString(), timestop - timestart);
}
if (response.Type == 0)
{
Console.WriteLine("{0} reached in {1} hops, {2}ms.", ep.ToString(), i, timestop - timestart);
break;
}
badcount = 0;
}
catch (SocketException)
{
Console.WriteLine("hop {0}: No response from remote host", i);
badcount++;
if (badcount == 5)
{
Console.WriteLine("Unable to contact remote host");
break;
}
}
}
host.Close();
Console.ReadKey();
}
// this is the network monitoring script
public void Run()
{
ConsoleOutputLogger.WriteLine("Starting up the Network Monitoring...");
ICMP pinger = new ICMP();
while (running)
{
foreach (NetworkMonitoringHost Host in NetworkMonitorConfiguration.NetworkHosts)
{
// start pinging around
ICMP_PingResult result = null;
try
{
result = pinger.Ping(Host.IPAdressOrHostname, 1, 500);
}
catch (Exception)
{
//ConsoleOutputLogger.WriteLine("NetworkMonitor Exception: "+e.Message);
result = new ICMP_PingResult();
result.Status = ICMP_Status.TimeOut;
result.hostIP = null;
}
// we got a result...
if (result != null)
{
// it's already in the list
if (OnOfflineList.ContainsKey(Host.IPAdressOrHostname))
{
if (OnOfflineList[Host.IPAdressOrHostname] == true) // this one was online before...
{
if (result.Status == ICMP_Status.TimeOut)
{
// it's now offline...
OnOfflineList[Host.IPAdressOrHostname] = false;
NetworkMonitoringDataSet ds_result = new NetworkMonitoringDataSet();
ds_result.AverageRoundtripMS = result.AverageRoundtripMS;
ds_result.Descriptor = Host.Descriptor;
ds_result.HostnameIP = Host.IPAdressOrHostname;
ds_result.Status = result.Status;
ds_result.TimeOfMeasurement = result.TimeOfMeasurement;
iQueue.Enqueue(ds_result);
}
}
else
{
if (result.Status == ICMP_Status.Success)
{
// it's now online...
OnOfflineList[Host.IPAdressOrHostname] = true;
NetworkMonitoringDataSet ds_result = new NetworkMonitoringDataSet();
ds_result.AverageRoundtripMS = result.AverageRoundtripMS;
ds_result.Descriptor = Host.Descriptor;
ds_result.HostnameIP = Host.IPAdressOrHostname;
ds_result.Status = result.Status;
ds_result.TimeOfMeasurement = result.TimeOfMeasurement;
iQueue.Enqueue(ds_result);
}
}
}
else
{
if (result.Status == ICMP_Status.Success)
{
OnOfflineList.Add(Host.IPAdressOrHostname, true);
}
else
{
OnOfflineList.Add(Host.IPAdressOrHostname, false);
}
// enqueue
NetworkMonitoringDataSet ds_result = new NetworkMonitoringDataSet();
ds_result.AverageRoundtripMS = result.AverageRoundtripMS;
ds_result.Descriptor = Host.Descriptor;
ds_result.HostnameIP = Host.IPAdressOrHostname;
ds_result.Status = result.Status;
ds_result.TimeOfMeasurement = result.TimeOfMeasurement;
iQueue.Enqueue(ds_result);
}
}
}
Thread.Sleep(NetworkMonitorUpdateTime);
}
}
static void Main(string[] args)
{
string ip;
Console.Write("tracert ");;
ip = Console.ReadLine();
IPAddress adress;
if (IPAddress.TryParse(ip, out adress))
{
try
{
string domen = System.Net.Dns.GetHostEntry(ip).HostName;
Console.WriteLine($"\n Трассировка маршрута к {domen} [{ip}] \n максимальное число прыжков 30:");
}
catch
{
Console.WriteLine($"\n Трассировка маршрута к [{ip}] \n максимальное число прыжков 30:");
}
}
else
{
try
{
string domen = System.Net.Dns.GetHostEntry(ip).HostName;
if (domen == ip)
{
ip = System.Net.Dns.GetHostEntry(ip).AddressList[0].ToString();
}
Console.WriteLine($"\n Трассировка маршрута к {domen} [{ip}] \n максимальное число прыжков 30:\n");
}
catch
{
Console.WriteLine("Не удается разрешить системное имя узла");
Console.ReadKey();
Environment.Exit(0);
}
}
byte[] data = new byte[1024];
IPAddress adr = IPAddress.Parse(ip);
Socket host = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.Icmp); //1. все адреса, используемые сокетом(протокол IPv4) 2. для передачи icmp пакетов 3. протокол icmp
IPHostEntry iphe = System.Net.Dns.GetHostEntry(adr); // контейнер для сведений об адресе веб-узлa
IPEndPoint iep = new IPEndPoint(adr, 0); // конечная точка ip-адрес и номер порта
EndPoint ep = (EndPoint)iep; //определяет сетевой адрес
ICMP packet = new ICMP(); //формируем ICMP пакет
packet.Type = 0x08; //тип для эхо-запроса?
packet.Code = 0x00;
packet.Checksum = 0;
int packetsize = packet.MessageSize + 8;//У кати +8 заголовка
UInt16 chcksum = packet.getChecksum();
packet.Checksum = chcksum;
host.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout /*промежуток времени, после которого истечет время тайм-аута*/, 3000);
int badcount = 0;
bool stop = false;
for (int i = 1; i < 30; i++)
{
Console.Write(i);
host.SetSocketOption(SocketOptionLevel.IP /*ip сокеты*/, SocketOptionName.IpTimeToLive /*поле срока жизни заголовка*/, i);
for (int j = 1; j < 4; j++)
{
DateTime timestart = DateTime.Now;
try
{
host.SendTo(packet.getBytes(), packetsize, SocketFlags.None, iep);
data = new byte[1024];
int recv = host.ReceiveFrom(data, ref ep);// получает дейтаграмму и конечную точку источника
TimeSpan timestop = DateTime.Now - timestart;
ICMP response = new ICMP(data, recv);
if (response.Type == 11)
{
Console.Write("{0,10}", (timestop.Milliseconds.ToString()) + "мс");
}
if (response.Type == 0)
{
Console.Write("{0,10}", (timestop.Milliseconds.ToString()) + "мс");
stop = true;
}
badcount = 0;
}
catch (SocketException)
{
Console.Write("{0,10}", "*");
badcount++;
}
}
if (badcount == 3 && !stop)
{
Console.WriteLine(" Превышен интервал ожидания запроса");
badcount = 0;
}
else
{
try
{
string domen = System.Net.Dns.GetHostEntry(IPAddress.Parse(ep.ToString().Split(':')[0])).HostName;
Console.WriteLine(" " + domen + " [" + ep.ToString().Split(':')[0] + "]");
}
catch
{
Console.WriteLine(" " + ep.ToString().Split(':')[0]);
}
}
if (stop)
{
Console.WriteLine("\nТрассировка завершена");
Console.ReadKey();
Environment.Exit(0);
}
}
host.Close();
Console.ReadKey();
}
