Customize Named Pipes - Aspnetcore

Customize Kestrel named pipe endpoints

Kestrel's named pipe support has been improved with advanced customization options. The new CreateNamedPipeServerStream method on the named pipe options allows pipes to be customized per-endpoint.

An example of where this is useful is a Kestrel app that requires two pipe endpoints with different access security. The CreateNamedPipeServerStream option can be used to create pipes with custom security settings, depending on the pipe name.

csharp

var builder = WebApplication.CreateBuilder();

builder.WebHost.ConfigureKestrel(options =>
{
    options.ListenNamedPipe("pipe1");
    options.ListenNamedPipe("pipe2");
});

builder.WebHost.UseNamedPipes(options =>
{
    options.CreateNamedPipeServerStream = (context) =>
    {
        var pipeSecurity = CreatePipeSecurity(context.NamedPipeEndpoint.PipeName);

        return NamedPipeServerStreamAcl.Create(context.NamedPipeEndPoint.PipeName, PipeDirection.InOut,
            NamedPipeServerStream.MaxAllowedServerInstances, PipeTransmissionMode.Byte,
            context.PipeOptions, inBufferSize: 0, outBufferSize: 0, pipeSecurity);
    };
});