static MsQuicApi()
{
// TODO: Consider updating all of these delegates to instead use function pointers.
if (NativeLibrary.TryLoad(Interop.Libraries.MsQuic, out IntPtr msQuicHandle))
{
try
{
if (NativeLibrary.TryGetExport(msQuicHandle, "MsQuicOpen", out IntPtr msQuicOpenAddress))
{
MsQuicOpenDelegate msQuicOpen =
Marshal.GetDelegateForFunctionPointer <MsQuicOpenDelegate>(msQuicOpenAddress);
uint status = msQuicOpen(out NativeApi * vtable);
if (MsQuicStatusHelper.SuccessfulStatusCode(status))
{
IsQuicSupported = true;
Api = new MsQuicApi(vtable);
}
}
}
finally
{
if (!IsQuicSupported)
{
NativeLibrary.Free(msQuicHandle);
}
}
}
}
internal static void ThrowIfFailed(uint status, string?message = null, Exception?innerException = null)
{
if (!MsQuicStatusHelper.SuccessfulStatusCode(status))
{
throw CreateExceptionForHResult(status, message, innerException);
}
}
static MsQuicApi()
{
if (!IsHttp3Enabled())
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(null, $"HTTP/3 and QUIC is not enabled, see 'System.Net.SocketsHttpHandler.Http3Support' AppContext switch.");
}
return;
}
if (OperatingSystem.IsWindows() && !IsWindowsVersionSupported())
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(null, $"Current Windows version ({Environment.OSVersion}) is not supported by QUIC. Minimal supported version is {MinWindowsVersion}");
}
return;
}
if (NativeLibrary.TryLoad(Interop.Libraries.MsQuic, typeof(MsQuicApi).Assembly, DllImportSearchPath.AssemblyDirectory, out IntPtr msQuicHandle))
{
try
{
if (NativeLibrary.TryGetExport(msQuicHandle, "MsQuicOpenVersion", out IntPtr msQuicOpenVersionAddress))
{
delegate * unmanaged[Cdecl] < uint, out NativeApi *, uint > msQuicOpenVersion =
(delegate * unmanaged[Cdecl] < uint, out NativeApi *, uint >)msQuicOpenVersionAddress;
uint status = msQuicOpenVersion(MsQuicVersion, out NativeApi * vtable);
if (MsQuicStatusHelper.SuccessfulStatusCode(status))
{
IsQuicSupported = true;
Api = new MsQuicApi(vtable);
}
}
}
finally
{
if (!IsQuicSupported)
{
NativeLibrary.Free(msQuicHandle);
}
}
}
}
static MsQuicApi()
{
if (OperatingSystem.IsWindows())
{
if (!IsWindowsVersionSupported())
{
if (NetEventSource.Log.IsEnabled())
{
NetEventSource.Info(null, $"Current Windows version ({Environment.OSVersion}) is not supported by QUIC. Minimal supported version is {MinWindowsVersion}");
}
return;
}
Tls13MayBeDisabled = IsTls13Disabled();
}
IntPtr msQuicHandle;
if (NativeLibrary.TryLoad($"{Interop.Libraries.MsQuic}.{MsQuicVersion}", typeof(MsQuicApi).Assembly, DllImportSearchPath.AssemblyDirectory, out msQuicHandle) ||
NativeLibrary.TryLoad(Interop.Libraries.MsQuic, typeof(MsQuicApi).Assembly, DllImportSearchPath.AssemblyDirectory, out msQuicHandle))
{
try
{
if (NativeLibrary.TryGetExport(msQuicHandle, "MsQuicOpenVersion", out IntPtr msQuicOpenVersionAddress))
{
NativeApi *vtable;
delegate * unmanaged[Cdecl] < uint, NativeApi **, uint > msQuicOpenVersion =
(delegate * unmanaged[Cdecl] < uint, NativeApi **, uint >)msQuicOpenVersionAddress;
uint status = msQuicOpenVersion(MsQuicVersion, &vtable);
if (MsQuicStatusHelper.SuccessfulStatusCode(status))
{
IsQuicSupported = true;
Api = new MsQuicApi(vtable);
}
}
}
finally
{
if (!IsQuicSupported)
{
NativeLibrary.Free(msQuicHandle);
}
}
}
}
static unsafe MsQuicApi()
{
// MsQuicOpen will succeed even if the platform will not support it. It will then fail with unspecified
// platform-specific errors in subsequent callbacks. For now, check for the minimum build we've tested it on.
// TODO:
// - Hopefully, MsQuicOpen will perform this check for us and give us a consistent error code.
// - Otherwise, dial this in to reflect actual minimum requirements and add some sort of platform
// error code mapping when creating exceptions.
// TODO: try to initialize TLS 1.3 in SslStream.
// TODO: Consider updating all of these delegates to instead use function pointers.
if (NativeLibrary.TryLoad(Interop.Libraries.MsQuic, out IntPtr msQuicHandle))
{
try
{
if (NativeLibrary.TryGetExport(msQuicHandle, "MsQuicOpen", out IntPtr msQuicOpenAddress))
{
MsQuicNativeMethods.MsQuicOpenDelegate msQuicOpen = Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.MsQuicOpenDelegate>(msQuicOpenAddress);
uint status = msQuicOpen(out MsQuicNativeMethods.NativeApi * registration);
if (MsQuicStatusHelper.SuccessfulStatusCode(status))
{
IsQuicSupported = true;
Api = new MsQuicApi(registration);
}
}
}
finally
{
if (!IsQuicSupported)
{
NativeLibrary.Free(msQuicHandle);
}
}
}
}
private unsafe MsQuicApi()
{
MsQuicNativeMethods.NativeApi *registration;
try
{
uint status = Interop.MsQuic.MsQuicOpen(out registration);
if (!MsQuicStatusHelper.SuccessfulStatusCode(status))
{
throw new NotSupportedException(SR.net_quic_notsupported);
}
}
catch (DllNotFoundException)
{
throw new NotSupportedException(SR.net_quic_notsupported);
}
MsQuicNativeMethods.NativeApi nativeRegistration = *registration;
RegistrationOpenDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.RegistrationOpenDelegate>(
nativeRegistration.RegistrationOpen);
RegistrationCloseDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.RegistrationCloseDelegate>(
nativeRegistration.RegistrationClose);
SecConfigCreateDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SecConfigCreateDelegate>(
nativeRegistration.SecConfigCreate);
SecConfigDeleteDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SecConfigDeleteDelegate>(
nativeRegistration.SecConfigDelete);
SessionOpenDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SessionOpenDelegate>(
nativeRegistration.SessionOpen);
SessionCloseDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SessionCloseDelegate>(
nativeRegistration.SessionClose);
SessionShutdownDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SessionShutdownDelegate>(
nativeRegistration.SessionShutdown);
ListenerOpenDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ListenerOpenDelegate>(
nativeRegistration.ListenerOpen);
ListenerCloseDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ListenerCloseDelegate>(
nativeRegistration.ListenerClose);
ListenerStartDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ListenerStartDelegate>(
nativeRegistration.ListenerStart);
ListenerStopDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ListenerStopDelegate>(
nativeRegistration.ListenerStop);
ConnectionOpenDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ConnectionOpenDelegate>(
nativeRegistration.ConnectionOpen);
ConnectionCloseDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ConnectionCloseDelegate>(
nativeRegistration.ConnectionClose);
ConnectionShutdownDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ConnectionShutdownDelegate>(
nativeRegistration.ConnectionShutdown);
ConnectionStartDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ConnectionStartDelegate>(
nativeRegistration.ConnectionStart);
StreamOpenDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamOpenDelegate>(
nativeRegistration.StreamOpen);
StreamCloseDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamCloseDelegate>(
nativeRegistration.StreamClose);
StreamStartDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamStartDelegate>(
nativeRegistration.StreamStart);
StreamShutdownDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamShutdownDelegate>(
nativeRegistration.StreamShutdown);
StreamSendDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamSendDelegate>(
nativeRegistration.StreamSend);
StreamReceiveCompleteDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamReceiveCompleteDelegate>(
nativeRegistration.StreamReceiveComplete);
StreamReceiveSetEnabledDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamReceiveSetEnabledDelegate>(
nativeRegistration.StreamReceiveSetEnabled);
SetContextDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SetContextDelegate>(
nativeRegistration.SetContext);
GetContextDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.GetContextDelegate>(
nativeRegistration.GetContext);
SetCallbackHandlerDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SetCallbackHandlerDelegate>(
nativeRegistration.SetCallbackHandler);
SetParamDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SetParamDelegate>(
nativeRegistration.SetParam);
GetParamDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.GetParamDelegate>(
nativeRegistration.GetParam);
var registrationConfig = new MsQuicNativeMethods.RegistrationConfig
{
AppName = "SystemNetQuic",
ExecutionProfile = QUIC_EXECUTION_PROFILE.QUIC_EXECUTION_PROFILE_LOW_LATENCY
};
RegistrationOpenDelegate(ref registrationConfig, out IntPtr ctx);
_registrationContext = ctx;
}
private unsafe MsQuicApi()
{
MsQuicNativeMethods.NativeApi *registration;
try
{
uint status = Interop.MsQuic.MsQuicOpen(version: 1, out registration);
if (!MsQuicStatusHelper.SuccessfulStatusCode(status))
{
throw new NotSupportedException(SR.net_quic_notsupported);
}
}
catch (DllNotFoundException)
{
throw new NotSupportedException(SR.net_quic_notsupported);
}
MsQuicNativeMethods.NativeApi nativeRegistration = *registration;
RegistrationOpenDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.RegistrationOpenDelegate>(
nativeRegistration.RegistrationOpen);
RegistrationCloseDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.RegistrationCloseDelegate>(
nativeRegistration.RegistrationClose);
SecConfigCreateDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SecConfigCreateDelegate>(
nativeRegistration.SecConfigCreate);
SecConfigDeleteDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SecConfigDeleteDelegate>(
nativeRegistration.SecConfigDelete);
SessionOpenDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SessionOpenDelegate>(
nativeRegistration.SessionOpen);
SessionCloseDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SessionCloseDelegate>(
nativeRegistration.SessionClose);
SessionShutdownDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SessionShutdownDelegate>(
nativeRegistration.SessionShutdown);
ListenerOpenDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ListenerOpenDelegate>(
nativeRegistration.ListenerOpen);
ListenerCloseDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ListenerCloseDelegate>(
nativeRegistration.ListenerClose);
ListenerStartDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ListenerStartDelegate>(
nativeRegistration.ListenerStart);
ListenerStopDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ListenerStopDelegate>(
nativeRegistration.ListenerStop);
ConnectionOpenDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ConnectionOpenDelegate>(
nativeRegistration.ConnectionOpen);
ConnectionCloseDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ConnectionCloseDelegate>(
nativeRegistration.ConnectionClose);
ConnectionShutdownDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ConnectionShutdownDelegate>(
nativeRegistration.ConnectionShutdown);
ConnectionStartDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.ConnectionStartDelegate>(
nativeRegistration.ConnectionStart);
StreamOpenDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamOpenDelegate>(
nativeRegistration.StreamOpen);
StreamCloseDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamCloseDelegate>(
nativeRegistration.StreamClose);
StreamStartDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamStartDelegate>(
nativeRegistration.StreamStart);
StreamShutdownDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamShutdownDelegate>(
nativeRegistration.StreamShutdown);
StreamSendDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamSendDelegate>(
nativeRegistration.StreamSend);
StreamReceiveCompleteDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamReceiveCompleteDelegate>(
nativeRegistration.StreamReceiveComplete);
StreamReceiveSetEnabledDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.StreamReceiveSetEnabledDelegate>(
nativeRegistration.StreamReceiveSetEnabled);
SetContextDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SetContextDelegate>(
nativeRegistration.SetContext);
GetContextDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.GetContextDelegate>(
nativeRegistration.GetContext);
SetCallbackHandlerDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SetCallbackHandlerDelegate>(
nativeRegistration.SetCallbackHandler);
SetParamDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.SetParamDelegate>(
nativeRegistration.SetParam);
GetParamDelegate =
Marshal.GetDelegateForFunctionPointer <MsQuicNativeMethods.GetParamDelegate>(
nativeRegistration.GetParam);
RegistrationOpenDelegate(Encoding.UTF8.GetBytes("SystemNetQuic"), out IntPtr ctx);
_registrationContext = ctx;
}
