static NWConnection CreateOutboundConnection(string name, string port)
{
NWEndpoint endpoint;
if (bonjour)
{
endpoint = NWEndpoint.CreateBonjourService(name, GetServiceType(), "local");
}
else
{
endpoint = NWEndpoint.Create(name, port);
}
Action <NWProtocolOptions> configureTls = SetupTls();
NWParameters parameters;
if (useUdp)
{
if (useTls)
{
parameters = NWParameters.CreateSecureUdp(configureTls: configureTls, configureUdp: null);
}
else
{
parameters = NWParameters.CreateUdp(configureUdp: null);
}
}
else
{
if (useTls)
{
parameters = NWParameters.CreateSecureTcp(configureTls: configureTls, configureTcp: null);
}
else
{
parameters = NWParameters.CreateTcp(configureTcp: null);
}
}
using (NWProtocolStack protocolStack = parameters.ProtocolStack){
if (ipv4 || ipv6)
{
NWProtocolOptions ipOptions = protocolStack.InternetProtocol;
ipOptions.IPSetVersion(ipv4 ? NWIPVersion.Version4 : NWIPVersion.Version6);
}
}
if (localAddr != null || localPort != null)
{
using (NWEndpoint localEndpoint = NWEndpoint.Create(localAddr != null ? localAddr : "::", port == null ? "0" : port))
parameters.LocalEndpoint = localEndpoint;
}
var connection = new NWConnection(endpoint, parameters);
endpoint.Dispose();
parameters.Dispose();
return(connection);
}
public void CreateSecureTcpTestDoNotSetUpTls()
{
var setUpProtocol = CreateConfigureProtocolHandler();
using (var parameters = NWParameters.CreateSecureTcp(configureTls: null, configureTcp: setUpProtocol))
using (var endpoint = NWEndpoint.Create(NetworkResources.MicrosoftUri.Host, "80")) {
configureEvent.WaitOne();
Assert.False(secureConnectionWasSet, "Configure TLS handler was called.");
Assert.True(protocolConfigured, "Protocol configure handler was not called.");
}
}
public void CreateSecureTcpTestDoNotSetUpTls()
{
var setUpProtocol = CreateConfigureProtocolHandler();
using (var parameters = NWParameters.CreateSecureTcp(configureTls: null, configureTcp: setUpProtocol))
using (var endpoint = NWEndpoint.Create("wwww.google.com", "80"))
using (var connection = new NWConnection(endpoint, parameters)) {
connection.SetQueue(DispatchQueue.MainQueue);
connection.Start();
configureEvent.WaitOne();
connection.Cancel();
Assert.False(secureConnectionWasSet, "Configure TLS handler was called.");
Assert.True(protocolConfigured, "Protocol configure handler was not called.");
}
}
public void TlsDefaults()
{
using (var ep = NWEndpoint.Create("www.microsoft.com", "https"))
using (var parameters = NWParameters.CreateSecureTcp())
using (var queue = new DispatchQueue(GetType().FullName)) {
var connection = new NWConnection(ep, parameters);
var ready = new ManualResetEvent(false);
connection.SetStateChangeHandler((state, error) => {
Console.WriteLine(state);
switch (state)
{
case NWConnectionState.Cancelled:
case NWConnectionState.Failed:
// We can't dispose until the connection has been closed or it failed.
connection.Dispose();
break;
case NWConnectionState.Invalid:
case NWConnectionState.Preparing:
case NWConnectionState.Waiting:
break;
case NWConnectionState.Ready:
ready.Set();
break;
default:
break;
}
});
connection.SetQueue(queue);
connection.Start();
// Wait until the connection is ready.
Assert.True(ready.WaitOne(TimeSpan.FromSeconds(10)), "Connection is ready");
using (var m = connection.GetProtocolMetadata(NWProtocolDefinition.TlsDefinition)) {
var s = m.TlsSecProtocolMetadata;
Assert.False(s.EarlyDataAccepted, "EarlyDataAccepted");
Assert.That(s.NegotiatedCipherSuite, Is.Not.EqualTo(SslCipherSuite.SSL_NULL_WITH_NULL_NULL), "NegotiatedCipherSuite");
Assert.Null(s.NegotiatedProtocol, "NegotiatedProtocol");
Assert.That(s.NegotiatedProtocolVersion, Is.EqualTo(SslProtocol.Tls_1_2).Or.EqualTo(SslProtocol.Tls_1_3), "NegotiatedProtocolVersion");
Assert.NotNull(s.PeerPublicKey, "PeerPublicKey");
Assert.True(SecProtocolMetadata.ChallengeParametersAreEqual(s, s), "ChallengeParametersAreEqual");
Assert.True(SecProtocolMetadata.PeersAreEqual(s, s), "PeersAreEqual");
if (TestRuntime.CheckXcodeVersion(11, 0))
{
using (var d = s.CreateSecret("Xamarin", 128)) {
Assert.That(d.Size, Is.EqualTo((nuint)128), "CreateSecret-1");
}
using (var d = s.CreateSecret("Microsoft", new byte [1], 256)) {
Assert.That(d.Size, Is.EqualTo((nuint)256), "CreateSecret-2");
}
Assert.That(s.NegotiatedTlsProtocolVersion, Is.EqualTo(TlsProtocolVersion.Tls12).Or.EqualTo(TlsProtocolVersion.Tls13), "NegotiatedTlsProtocolVersion");
// we want to test the binding/API - not the exact value which can vary depending on the negotiation between the client (OS) and server...
Assert.That(s.NegotiatedTlsCipherSuite, Is.Not.EqualTo(0), "NegotiatedTlsCipherSuite");
Assert.That(s.ServerName, Is.EqualTo("www.microsoft.com"), "ServerName");
// we don't have a TLS-PSK enabled server to test this
Assert.False(s.AccessPreSharedKeys((psk, pskId) => { }), "AccessPreSharedKeys");
}
}
connection.Cancel();
}
}
static NWListener CreateAndStartListener(string host, string port)
{
Action <NWProtocolOptions> configureTls = SetupTls();
NWParameters parameters;
// Create the parameters, either TLS or no TLS, and with UDP or no UDP
if (useUdp)
{
if (useTls)
{
parameters = NWParameters.CreateSecureUdp(configureTls: configureTls, configureUdp: null);
}
else
{
parameters = NWParameters.CreateUdp(configureUdp: null);
}
}
else
{
if (useTls)
{
parameters = NWParameters.CreateSecureTcp(configureTls: configureTls, configureTcp: null);
}
else
{
parameters = NWParameters.CreateTcp(configureTcp: null);
}
}
// If specified, set the IP version
using (NWProtocolStack protocolStack = parameters.ProtocolStack){
if (ipv4 || ipv6)
{
NWProtocolOptions ipOptions = protocolStack.InternetProtocol;
ipOptions.IPSetVersion(ipv4 ? NWIPVersion.Version4 : NWIPVersion.Version6);
}
}
// Bind to local address and port
string address = bonjour ? null : host;
if (address != null || port != null)
{
NWEndpoint localEndpoint = NWEndpoint.Create(address != null ? address : "::", port != null ? port : "0");
Console.WriteLine("Getting {0} and {1}", address != null ? address : "::", port != null ? port : "0");
parameters.LocalEndpoint = localEndpoint;
Console.WriteLine("With port: " + localEndpoint.Port);
}
var listener = NWListener.Create(parameters);
if (bonjour && host != null)
{
listener.SetAdvertiseDescriptor(NWAdvertiseDescriptor.CreateBonjourService(host, GetServiceType(), "local"));
listener.SetAdvertisedEndpointChangedHandler((NWEndpoint advertisedEndpoint, bool added) => {
if (verbose)
{
var astr = added ? "added" : "removed";
warn($"Listener {astr} on {advertisedEndpoint.BonjourServiceName} on ({advertisedEndpoint.BonjourServiceName}.{GetServiceType()}.local");
}
});
}
listener.SetQueue(DispatchQueue.MainQueue);
listener.SetStateChangedHandler((listenerState, error) => {
var errno = (SslStatus)(error == null ? 0 : error.ErrorCode);
switch (listenerState)
{
case NWListenerState.Waiting:
if (verbose)
{
warn($"Listener on port {listener.Port} udp={useUdp} waiting");
}
break;
case NWListenerState.Failed:
warn($"Listener on port {listener.Port} udp={useUdp} failed");
break;
case NWListenerState.Ready:
if (verbose)
{
warn($"Listener on port {listener.Port} udp={useUdp} ready");
}
break;
case NWListenerState.Cancelled:
listener = null;
break;
}
});
listener.SetNewConnectionHandler((connection) => {
if (inboundConnection != null)
{
// We only support one connection at a time, so if we already
// have one, reject the incoming connection.
connection.Cancel();
}
else
{
if (verbose)
{
warn($"New Connection on {connection.Handle} with {connection.Endpoint}");
}
// Accept the incoming connection and start sending and receiving on it
inboundConnection = connection;
StartConnection(inboundConnection);
StartSendReceiveLoop(inboundConnection);
}
});
listener.Start();
return(listener);
}