private void btnConnect_Click(object sender, EventArgs e)
{
//Binding socket
epLocal = new IPEndPoint(IPAddress.Parse(txtLocalIP.Text), Convert.ToInt32(txtLocalPort.Text));
sck.Bind(epLocal);
//Connecting to remote IP
epRemote = new IPEndPoint(IPAddress.Parse(txtRemoteIP.Text), Convert.ToInt32(txtRemotePort.Text));
sck.Connect(epRemote);
//Listening the specific port
buffer = new byte[1500];
sck.BeginReceiveMessageFrom(buffer, 0, buffer.Length, SocketFlags.None, ref epRemote, new AsyncCallback(MessageCallBack), buffer);
}
[ConditionalFact(nameof(PlatformDetection) + "." + nameof(PlatformDetection.IsNotWindowsSubsystemForLinux))] // https://github.com/Microsoft/BashOnWindows/issues/987
public void Success_APM()
{
if (Socket.OSSupportsIPv4)
{
using (Socket receiver = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
{
int port = receiver.BindToAnonymousPort(IPAddress.Loopback);
receiver.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.PacketInformation, true);
Socket sender = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
sender.Bind(new IPEndPoint(IPAddress.Loopback, 0));
for (int i = 0; i < TestSettings.UDPRedundancy; i++)
{
sender.SendTo(new byte[1024], new IPEndPoint(IPAddress.Loopback, port));
}
IPPacketInformation packetInformation;
SocketFlags flags = SocketFlags.None;
EndPoint remoteEP = new IPEndPoint(IPAddress.Any, 0);
IAsyncResult ar = receiver.BeginReceiveMessageFrom(new byte[1024], 0, 1024, flags, ref remoteEP, null, null);
ar.AsyncWaitHandle.WaitOne();
int len = receiver.EndReceiveMessageFrom(ar, ref flags, ref remoteEP, out packetInformation);
Assert.Equal(1024, len);
Assert.Equal(sender.LocalEndPoint, remoteEP);
Assert.Equal(((IPEndPoint)sender.LocalEndPoint).Address, packetInformation.Address);
sender.Dispose();
}
}
}
// ToDo: Supposedly the Event Asynchronous Pattern (EAP) can be turned into the Task Asynchronous Pattern (TAP)
// with one line. Couldn't make it work as yet.
//public Task<int> ReceiveAsync(byte[] buffer, int offset, int count, SocketFlags flags)
//{
// return Task<int>.Factory.FromAsync(m_udpSocket.BeginReceive, m_udpSocket.EndReceive,
// buffer, offset, count, flags, null, TaskCreationOptions.None);
//}
/// <summary>
/// Starts the receive. This method returns immediately. An event will be fired in the corresponding "End" event to
/// return any data received.
/// </summary>
public void BeginReceive()
{
try
{
EndPoint recvEndPoint = (m_udpSocket.LocalEndPoint.AddressFamily == AddressFamily.InterNetwork) ? new IPEndPoint(IPAddress.Any, 0) : new IPEndPoint(IPAddress.IPv6Any, 0);
m_udpSocket.BeginReceiveMessageFrom(m_recvBuffer, 0, m_recvBuffer.Length, SocketFlags.None, ref recvEndPoint, EndReceiveMessageFrom, null);
}
catch (ObjectDisposedException) { } // Thrown when socket is closed. Can be safely ignored.
// This exception can be thrown in response to an ICMP packet. The problem is the ICMP packet can be a false positive.
// For example if the remote RTP socket has not yet been opened the remote host could generate an ICMP packet for the
// initial RTP packets. Experience has shown that it's not safe to close an RTP connection based solely on ICMP packets.
catch (SocketException)
{
//logger.LogWarning($"Socket error {sockExcp.SocketErrorCode} in UdpReceiver.BeginReceive. {sockExcp.Message}");
//Close(sockExcp.Message);
}
catch (Exception excp)
{
// From https://github.com/dotnet/corefx/blob/e99ec129cfd594d53f4390bf97d1d736cff6f860/src/System.Net.Sockets/src/System/Net/Sockets/Socket.cs#L3056
// the BeginReceiveMessageFrom will only throw if there is an problem with the arguments or the socket has been disposed of. In that
// case the socket can be considered to be unusable and there's no point trying another receive.
logger.LogError($"Exception UdpReceiver.BeginReceive. {excp.Message}");
Close(excp.Message);
}
}
public void BeginReceiveMessageFrom_RemoteEpIsReturnedWhenCompletedSynchronously()
{
EndPoint anyEp = new IPEndPoint(IPAddress.Any, 0);
EndPoint remoteEp = anyEp;
using Socket receiver = CreateSocket();
receiver.BindToAnonymousPort(IPAddress.Loopback);
using Socket sender = CreateSocket();
sender.BindToAnonymousPort(IPAddress.Loopback);
sender.SendTo(new byte[1], receiver.LocalEndPoint);
IAsyncResult iar = receiver.BeginReceiveMessageFrom(new byte[1], 0, 1, SocketFlags.None, ref remoteEp, null, null);
if (iar.CompletedSynchronously)
{
_output.WriteLine("Completed synchronously, updated endpoint.");
Assert.Equal(sender.LocalEndPoint, remoteEp);
}
else
{
_output.WriteLine("Completed asynchronously, did not update endPoint");
Assert.Equal(anyEp, remoteEp);
}
}
private void OnMessageReceived(IAsyncResult ar)
{
Socket socket = (Socket)ar.AsyncState;
EndPoint clientEndPoint = new IPEndPoint(IPAddress.Any, 0);
SocketFlags flags = new SocketFlags();
IPPacketInformation ipInf = new IPPacketInformation();
int packetLength = socket.EndReceiveMessageFrom(ar, ref flags, ref clientEndPoint, out ipInf);
byte[] packet = new byte[packetLength];
Array.Copy(_buffer, packet, packetLength);
EndPoint newClientEndPoint = new IPEndPoint(IPAddress.Any, 0);
socket.BeginReceiveMessageFrom(
_buffer, 0, _buffer.Length, SocketFlags.None, ref newClientEndPoint, OnMessageReceived, (object)socket);
string messageId = string.Empty;
if (_messageUtils.ParseProbe(packet, ref messageId))
{
SendMessage(
_messageUtils.BuildProbeMatches(_scopes.ToArray(), false, new string[] { _xAddr }, messageId),
false, clientEndPoint);
}
}
/// <summary>
/// Extends BeginReceiveMessageFrom so that when a state object is not needed, null does not need to be passed.
/// <example>
/// socket.BeginReceiveMessageFrom(buffer, offset, size, socketFlags, remoteEP, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginReceiveMessageFrom(this Socket socket, Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags, ref System.Net.EndPoint remoteEP, AsyncCallback callback)
{
if (socket == null)
{
throw new ArgumentNullException("socket");
}
return(socket.BeginReceiveMessageFrom(buffer, offset, size, socketFlags, ref remoteEP, callback, null));
}
/// <inheritdoc />
public IAsyncResult BeginReceiveMessageFrom(byte[] buffer,
int offset,
int size,
SocketFlags socketFlags,
ref EndPoint remoteEP,
AsyncCallback callback,
object state)
{
return(_socket.BeginReceiveMessageFrom(buffer, offset, size, socketFlags, ref remoteEP, callback, state));
}
public void Success_APM(bool ipv4)
{
AddressFamily family;
IPAddress loopback, any;
SocketOptionLevel level;
if (ipv4)
{
if (!Socket.OSSupportsIPv4)
{
return;
}
family = AddressFamily.InterNetwork;
loopback = IPAddress.Loopback;
any = IPAddress.Any;
level = SocketOptionLevel.IP;
}
else
{
if (!Socket.OSSupportsIPv6)
{
return;
}
family = AddressFamily.InterNetworkV6;
loopback = IPAddress.IPv6Loopback;
any = IPAddress.IPv6Any;
level = SocketOptionLevel.IPv6;
}
using (var receiver = new Socket(family, SocketType.Dgram, ProtocolType.Udp))
using (var sender = new Socket(family, SocketType.Dgram, ProtocolType.Udp))
{
int port = receiver.BindToAnonymousPort(loopback);
receiver.SetSocketOption(level, SocketOptionName.PacketInformation, true);
sender.Bind(new IPEndPoint(loopback, 0));
for (int i = 0; i < TestSettings.UDPRedundancy; i++)
{
sender.SendTo(new byte[1024], new IPEndPoint(loopback, port));
}
IPPacketInformation packetInformation;
SocketFlags flags = SocketFlags.None;
EndPoint remoteEP = new IPEndPoint(any, 0);
IAsyncResult ar = receiver.BeginReceiveMessageFrom(new byte[1024], 0, 1024, flags, ref remoteEP, null, null);
int len = receiver.EndReceiveMessageFrom(ar, ref flags, ref remoteEP, out packetInformation);
Assert.Equal(1024, len);
Assert.Equal(sender.LocalEndPoint, remoteEP);
Assert.Equal(((IPEndPoint)sender.LocalEndPoint).Address, packetInformation.Address);
}
}
public void EndReceiveMessageFrom_AddressFamilyDoesNotMatch_Throws_ArgumentException()
{
SocketFlags socketFlags = SocketFlags.None;
EndPoint validEndPoint = new IPEndPoint(IPAddress.Loopback, 1);
EndPoint invalidEndPoint = new IPEndPoint(IPAddress.IPv6Loopback, 1);
using Socket socket = CreateSocket();
socket.BindToAnonymousPort(IPAddress.Loopback);
IAsyncResult iar = socket.BeginReceiveMessageFrom(new byte[1], 0, 1, SocketFlags.None, ref validEndPoint, null, null);
Assert.Throws <ArgumentException>("endPoint", () => socket.EndReceiveMessageFrom(iar, ref socketFlags, ref invalidEndPoint, out _));
}
private void ReceiveCallback(IAsyncResult ar)
{
// end the receive
Socket sock = (Socket)ar.AsyncState;
try {
SocketFlags sf = SocketFlags.None;
IPPacketInformation packetInfo;
int bytes = sock.EndReceiveMessageFrom(ar, ref sf, ref receiveEndpoint, out packetInfo);
lock (lockobj) {
IPEndPoint ep = receiveEndpoint as IPEndPoint;
if (ep != null)
{
ChannelSender sender = null;
for (int i = 0; i < senders.Count; i++)
{
if (senders[i].Endpoint.Equals(ep))
{
sender = senders[i];
break;
}
}
if (sender == null)
{
sender = new ChannelSender(ep);
senders.Add(sender);
}
// parse out the version, serialization type, sequence number
int seqNumber = int.MinValue;
switch (channelType)
{
case ChannelType.UDPChannel:
ParseUDPChannelPacket(buf, bytes, ref seqNumber);
break;
}
sender.OnPacketReceived(seqNumber);
packetCount++;
byteCount += bytes;
}
}
receiveEndpoint = new IPEndPoint(IPAddress.Any, 0);
sock.BeginReceiveMessageFrom(buf, 0, buf.Length, SocketFlags.None, ref receiveEndpoint, ReceiveCallback, sock);
}
catch (Exception) {
}
}
/// <summary>
/// Extends BeginReceiveMessageFrom so that buffer offset of 0 and call to Array.Length are not needed.
/// <example>
/// socket.BeginReceiveMessageFrom(buffer, socketFlags, remoteEP, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginReceiveMessageFrom(this Socket socket, Byte[] buffer, SocketFlags socketFlags, ref System.Net.EndPoint remoteEP, AsyncCallback callback)
{
if (socket == null)
{
throw new ArgumentNullException("socket");
}
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
return(socket.BeginReceiveMessageFrom(buffer, 0, buffer.Length, socketFlags, ref remoteEP, callback));
}
public SharedSocket(int port)
{
addressEntries = new List <AddressEntry>();
this.port = port;
buffer = new byte[65535];
receiveEndpoint = new IPEndPoint(IPAddress.Any, 0);
socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
socket.Bind(new IPEndPoint(IPAddress.Any, port));
socket.BeginReceiveMessageFrom(buffer, 0, buffer.Length, SocketFlags.None, ref receiveEndpoint, OnDataReceived, null);
}
public MessInterface()
{
this.receiveEndpoint = new IPEndPoint(IPAddress.Any, 0);
this.buf = new byte[65536];
receiveEndpoint = new IPEndPoint(IPAddress.Any, 0);
socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
socket.Bind(new IPEndPoint(IPAddress.Any, 30040));
socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(IPAddress.Parse("239.132.1.40")));
socket.BeginReceiveMessageFrom(buf, 0, buf.Length, SocketFlags.None, ref receiveEndpoint, ReceiveCallback, socket);
}
// ToDo: Supposedly the Event Asynchronous Pattern (EAP) can be turned into the Task Asynchronous Pattern (TAP)
// with one line. Couldn't make it work as yet.
//public Task<int> ReceiveAsync(byte[] buffer, int offset, int count, SocketFlags flags)
//{
// return Task<int>.Factory.FromAsync(m_udpSocket.BeginReceive, m_udpSocket.EndReceive,
// buffer, offset, count, flags, null, TaskCreationOptions.None);
//}
/// <summary>
/// Starts the receive. This method returns immediately. An event will be fired in the corresponding "End" event to
/// return any data received.
/// </summary>
public void BeginReceive()
{
try
{
EndPoint recvEndPoint = (m_udpSocket.LocalEndPoint.AddressFamily == AddressFamily.InterNetwork) ? new IPEndPoint(IPAddress.Any, 0) : new IPEndPoint(IPAddress.IPv6Any, 0);
m_udpSocket.BeginReceiveMessageFrom(m_recvBuffer, 0, m_recvBuffer.Length, SocketFlags.None, ref recvEndPoint, EndReceiveMessageFrom, null);
}
catch (ObjectDisposedException) { } // Thrown when socket is closed. Can be safely ignored.
catch (Exception excp)
{
// From https://github.com/dotnet/corefx/blob/e99ec129cfd594d53f4390bf97d1d736cff6f860/src/System.Net.Sockets/src/System/Net/Sockets/Socket.cs#L3056
// the BeginReceiveMessageFrom will only throw if there is an problem with the arguments or the socket has been disposed of. In that
// case the socket can be considered to be unusable and there's no point trying another receive.
logger.LogError($"Exception UdpReceiver.BeginReceive. {excp.Message}");
Close(excp.Message);
}
}
private void Receive()
{
try
{
EndPoint recvEndPoint = (ListeningIPAddress.AddressFamily == AddressFamily.InterNetwork) ? new IPEndPoint(IPAddress.Any, 0) : new IPEndPoint(IPAddress.IPv6Any, 0);
m_udpSocket.BeginReceiveMessageFrom(m_recvBuffer, 0, m_recvBuffer.Length, SocketFlags.None, ref recvEndPoint, EndReceiveMessageFrom, null);
}
catch (Exception excp)
{
// From https://github.com/dotnet/corefx/blob/e99ec129cfd594d53f4390bf97d1d736cff6f860/src/System.Net.Sockets/src/System/Net/Sockets/Socket.cs#L3056
// the BeginReceiveMessageFrom will only throw if there is an problem with the arguments or the socket has been disposed of. In that
// case the sopcket can be considered to be unusable adn there's no point trying another receive.
logger.LogError($"Exception Receive. {excp.Message}");
logger.LogDebug($"SIPUDPChannel socket on {ListeningEndPoint} listening halted.");
Closed = true;
}
}
private void ReceiveCallback(IAsyncResult ar)
{
try {
Socket socket = (Socket)ar.AsyncState;
SocketFlags sf = SocketFlags.None;
IPPacketInformation packetInfo;
int bytesRecevied = socket.EndReceiveMessageFrom(ar, ref sf, ref receiveEndpoint, out packetInfo);
if (bytesRecevied >= 2)
{
OnMessPacketReceived(buf, bytesRecevied);
}
receiveEndpoint = new IPEndPoint(IPAddress.Any, 0);
socket.BeginReceiveMessageFrom(buf, 0, buf.Length, SocketFlags.None, ref receiveEndpoint, ReceiveCallback, socket);
}
catch (Exception) {
}
}
private void OnDataReceived(IAsyncResult ar)
{
bool doBeginReceive = true;
try {
SocketFlags flags = SocketFlags.None;
IPPacketInformation packetInfo;
int bytesRead = socket.EndReceiveMessageFrom(ar, ref flags, ref receiveEndpoint, out packetInfo);
IPEndPoint fromEndpoint = receiveEndpoint as IPEndPoint;
IPAddress destAddress = packetInfo.Address;
SocketDataReceivedEventArgs e = new SocketDataReceivedEventArgs(fromEndpoint, new IPEndPoint(destAddress, port), buffer, bytesRead);
lock (addressEntries) {
foreach (AddressEntry entry in addressEntries)
{
if (CompareSourceIP(entry.sourceAddress, fromEndpoint.Address) && CompareDestIP(entry.destAddress, destAddress))
{
entry.callback(e);
}
}
}
}
catch (ObjectDisposedException) {
doBeginReceive = false;
}
if (doBeginReceive)
{
int tryCount = 0;
while (tryCount < 3)
{
try {
receiveEndpoint = new IPEndPoint(IPAddress.Any, 0);
socket.BeginReceiveMessageFrom(buffer, 0, buffer.Length, SocketFlags.None, ref receiveEndpoint, OnDataReceived, null);
break;
}
catch (Exception) {
}
tryCount++;
}
}
}
private void OnMessageReceived(IAsyncResult ar)
{
Socket socket = (Socket)ar.AsyncState;
try
{
EndPoint clientEndPoint = new IPEndPoint(IPAddress.Any, 0);
SocketFlags flags = new SocketFlags();
IPPacketInformation ipInf = new IPPacketInformation();
int packetLength = socket.EndReceiveMessageFrom(ar, ref flags, ref clientEndPoint, out ipInf);
byte[] packet = new byte[packetLength];
Array.Copy(_buffer, packet, packetLength);
char[] packetChar = new char[packet.Length];
Array.Copy(_buffer, packetChar, packet.Length);
String packetStr = new String(packetChar);
System.IO.File.AppendAllText(Environment.GetEnvironmentVariable("TEMP") + @"\test.log",
"\n[" + DateTime.Now.ToString() + "]\nMessage: " + packetStr + "\n");
string messageId = string.Empty;
if (_messageUtils.ParseProbe(packet, ref messageId))
{
System.IO.File.AppendAllText(Environment.GetEnvironmentVariable("TEMP") + @"\test.log",
"Parsed Id: " + messageId + "\n");
SendMessage(
_messageUtils.BuildProbeMatches(_scopes.ToArray(), false, _xAddr.ToArray(), messageId),
false, clientEndPoint);
}
}
catch (Exception exc)
{
}
finally
{
EndPoint newClientEndPoint = new IPEndPoint(IPAddress.Any, 0);
socket.BeginReceiveMessageFrom(
_buffer, 0, _buffer.Length, SocketFlags.None, ref newClientEndPoint, OnMessageReceived, (object)socket);
}
}
public void StartServer()
{
try
{
var _endPointReference = (EndPoint) new IPEndPoint(IPAddress.Any, 53);
LocalListener.Bind(_endPointReference);
var parser = new FileIniDataParser();
var initData = parser.ReadFile($"{AppDomain.CurrentDomain.BaseDirectory}{@"\Configuration.ini"}");
var realDns = IPAddress.Parse(initData["IKDNS"]["DNSIP"]);
RemoteSocket.Connect(realDns, 53);
LocalListener.BeginReceiveMessageFrom(LocalBuffer, 0, LocalBuffer.Length, 0, ref _endPointReference, Receive, LocalListener);
}
catch (Exception ex)
{
NonBlockingConsole.WriteLine(ex.Message);
}
}
public void StartListening()
{
lock (lockobj) {
ResetStats();
hasData = true;
if (socket == null)
{
receiveEndpoint = new IPEndPoint(IPAddress.Any, 0);
socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
socket.Bind(new IPEndPoint(IPAddress.Any, this.endpoint.Port));
socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(this.endpoint.Address));
socket.BeginReceiveMessageFrom(buf, 0, buf.Length, SocketFlags.None, ref receiveEndpoint, ReceiveCallback, socket);
}
}
}
private void MessageCallBack(IAsyncResult aResult)
{
try
{
byte[] receivedData = new byte[1500];
receivedData = (byte[])aResult.AsyncState;
ASCIIEncoding aEncoding = new ASCIIEncoding();
string receivedMessage = aEncoding.GetString(receivedData);
listMessage.Items.Add("Client: " + receivedMessage);
buffer = new byte[1500];
sck.BeginReceiveMessageFrom(buffer, 0, buffer.Length, SocketFlags.None, ref epRemote, new AsyncCallback(MessageCallBack), buffer);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
public override Task <SocketReceiveMessageFromResult> ReceiveMessageFromAsync(Socket s, ArraySegment <byte> buffer, EndPoint endPoint)
{
var tcs = new TaskCompletionSource <SocketReceiveMessageFromResult>();
SocketFlags socketFlags = SocketFlags.None;
s.BeginReceiveMessageFrom(buffer.Array, buffer.Offset, buffer.Count, socketFlags, ref endPoint, iar =>
{
try
{
int receivedBytes = s.EndReceiveMessageFrom(iar, ref socketFlags, ref endPoint, out IPPacketInformation ipPacketInformation);
var result = new SocketReceiveMessageFromResult
{
ReceivedBytes = receivedBytes,
SocketFlags = socketFlags,
RemoteEndPoint = endPoint,
PacketInformation = ipPacketInformation
};
tcs.TrySetResult(result);
}
catch (Exception e) { tcs.TrySetException(e); }
}, null);
return(tcs.Task);
}
public static Task <UdpReceiveMessageFromResult> ReceiveMessageFromAsync(this Socket socket, byte[] buffer, int offset, int size, SocketFlags socketFlags = SocketFlags.None)
{
return(Task.Factory.FromAsync(
delegate(AsyncCallback callback, object state)
{
EndPoint ep;
if (socket.AddressFamily == AddressFamily.InterNetworkV6)
{
ep = IPEndPointIPv6Any;
}
else
{
ep = IPEndPointAny;
}
return socket.BeginReceiveMessageFrom(buffer, offset, size, socketFlags, ref ep, callback, state);
},
delegate(IAsyncResult result)
{
EndPoint ep;
if (socket.AddressFamily == AddressFamily.InterNetworkV6)
{
ep = IPEndPointIPv6Any;
}
else
{
ep = IPEndPointAny;
}
int bytesReceived = socket.EndReceiveMessageFrom(result, ref socketFlags, ref ep, out IPPacketInformation ipPacketInformation);
return new UdpReceiveMessageFromResult(bytesReceived, ep, ipPacketInformation);
},
null));
}
public void BeginReceiveMessageFrom_NotSupported()
{
using (Socket sock = new Socket(SocketType.Dgram, ProtocolType.Udp))
{
EndPoint ep = new IPEndPoint(IPAddress.Any, 0);
sock.Bind(ep);
byte[] buf = new byte[1];
Assert.Throws<PlatformNotSupportedException>(() => sock.BeginReceiveMessageFrom(buf, 0, buf.Length, SocketFlags.None, ref ep, null, null));
}
}
private void BeginReceiveMessageFrom_Helper(IPAddress listenOn, IPAddress connectTo, bool expectedToTimeout = false)
{
using (Socket serverSocket = new Socket(SocketType.Dgram, ProtocolType.Udp))
{
int port = serverSocket.BindToAnonymousPort(listenOn);
EndPoint receivedFrom = new IPEndPoint(connectTo, port);
SocketFlags socketFlags = SocketFlags.None;
IPPacketInformation ipPacketInformation;
IAsyncResult async = serverSocket.BeginReceiveMessageFrom(new byte[1], 0, 1, socketFlags, ref receivedFrom, null, null);
// Behavior difference from Desktop: receivedFrom will _not_ change during the synchronous phase.
// IPEndPoint remoteEndPoint = receivedFrom as IPEndPoint;
// Assert.Equal(AddressFamily.InterNetworkV6, remoteEndPoint.AddressFamily);
// Assert.Equal(connectTo.MapToIPv6(), remoteEndPoint.Address);
SocketUdpClient client = new SocketUdpClient(_log, serverSocket, connectTo, port);
bool success = async.AsyncWaitHandle.WaitOne(expectedToTimeout ? Configuration.FailingTestTimeout : Configuration.PassingTestTimeout);
if (!success)
{
throw new TimeoutException();
}
receivedFrom = new IPEndPoint(connectTo, port);
int received = serverSocket.EndReceiveMessageFrom(async, ref socketFlags, ref receivedFrom, out ipPacketInformation);
Assert.Equal(1, received);
Assert.Equal<Type>(receivedFrom.GetType(), typeof(IPEndPoint));
IPEndPoint remoteEndPoint = receivedFrom as IPEndPoint;
Assert.Equal(AddressFamily.InterNetworkV6, remoteEndPoint.AddressFamily);
Assert.Equal(connectTo.MapToIPv6(), remoteEndPoint.Address);
Assert.Equal(SocketFlags.None, socketFlags);
Assert.NotNull(ipPacketInformation);
Assert.Equal(connectTo, ipPacketInformation.Address);
// TODO: Move to NetworkInformation tests.
//Assert.Equal(NetworkInterface.IPv6LoopbackInterfaceIndex, ipPacketInformation.Interface);
}
}
// "The parameter remoteEP must not be of type DnsEndPoint."
public void Socket_BeginReceiveMessageFromDnsEndPoint_Throws()
{
using (Socket socket = new Socket(SocketType.Dgram, ProtocolType.Udp))
{
int port = socket.BindToAnonymousPort(IPAddress.IPv6Loopback);
EndPoint receivedFrom = new DnsEndPoint("localhost", port, AddressFamily.InterNetworkV6);
SocketFlags socketFlags = SocketFlags.None;
Assert.Throws<ArgumentException>(() =>
{
socket.BeginReceiveMessageFrom(new byte[1], 0, 1, socketFlags, ref receivedFrom, null, null);
});
}
}
[Fact] // Base case
// "The supplied EndPoint of AddressFamily InterNetwork is not valid for this Socket, use InterNetworkV6 instead."
public void Socket_BeginReceiveMessageFromV4IPEndPointFromV4Client_Throws()
{
Socket socket = new Socket(SocketType.Dgram, ProtocolType.Udp);
socket.DualMode = false;
EndPoint receivedFrom = new IPEndPoint(IPAddress.Loopback, UnusedPort);
SocketFlags socketFlags = SocketFlags.None;
Assert.Throws<ArgumentException>(() =>
{
socket.BeginReceiveMessageFrom(new byte[1], 0, 1, socketFlags, ref receivedFrom, null, null);
});
}
private void BeginReceiveMessageFrom_Helper(IPAddress listenOn, IPAddress connectTo)
{
using (Socket serverSocket = new Socket(SocketType.Dgram, ProtocolType.Udp))
{
int port = serverSocket.BindToAnonymousPort(listenOn);
EndPoint receivedFrom = new IPEndPoint(connectTo, port);
SocketFlags socketFlags = SocketFlags.None;
IPPacketInformation ipPacketInformation;
IAsyncResult async = serverSocket.BeginReceiveMessageFrom(new byte[1], 0, 1, socketFlags, ref receivedFrom, null, null);
IPEndPoint remoteEndPoint = receivedFrom as IPEndPoint;
Assert.Equal(AddressFamily.InterNetworkV6, remoteEndPoint.AddressFamily);
Assert.Equal(connectTo.MapToIPv6(), remoteEndPoint.Address);
SocketUdpClient client = new SocketUdpClient(serverSocket, connectTo, port);
bool success = async.AsyncWaitHandle.WaitOne(500);
if (!success)
{
throw new TimeoutException();
}
receivedFrom = new IPEndPoint(connectTo, port);
int received = serverSocket.EndReceiveMessageFrom(async, ref socketFlags, ref receivedFrom, out ipPacketInformation);
Assert.Equal(1, received);
Assert.Equal<Type>(receivedFrom.GetType(), typeof(IPEndPoint));
remoteEndPoint = receivedFrom as IPEndPoint;
Assert.Equal(AddressFamily.InterNetworkV6, remoteEndPoint.AddressFamily);
Assert.Equal(connectTo.MapToIPv6(), remoteEndPoint.Address);
Assert.Equal(SocketFlags.None, socketFlags);
Assert.NotNull(ipPacketInformation);
Assert.Equal(connectTo, ipPacketInformation.Address);
// TODO: Move to NetworkInformation tests.
//Assert.Equal(NetworkInterface.IPv6LoopbackInterfaceIndex, ipPacketInformation.Interface);
}
}