named-pipes

I am having an issue calling a WCF service over net.pipe with Windows impersonation from a C# Windows service. Background The service reads from a queue and creates children app domains, each running a particular module per the item pulled from the queue. We call the Windows service a “JobQueueAgent” and each module a “Job”. I will use these terms going forward. A job can be configured to run as a specified user. We use impersonation inside the job’s app domain to accomplish this. The following is the flow of logic and credentials in the service: JobQueueAgent (Windows Service – Primary User)

I'm using code from this article with only difference that maxNumberOfServerInstances is set to -1 (number of server instances with the same pipe name is limited only by system resources) in NamedPipeServerStream constructor Async Listen Method [Listen Server Class]: class PipeServer { string _pipeName; public void Listen(string PipeName) { try { // Set to class level var so we can re-use in the async callback method _pipeName = PipeName; // Create the new async pipe NamedPipeServerStream pipeServer = new NamedPipeServerStream(PipeName, PipeDirection.In, -1, PipeTransmissionMode.Byte,

It is very weird that I can't seem to make this work. This is my architecture: I have a named pipe which will communicate between a always-running root reader process and multiple application writer processes. The reader process has to be blocking while the writers are nonblocking . Therefore this is what I do in the reader process which will run with root privilege. reader.c #define PIPE_ID "/dev/shm/mypipe" // This function configures named pipe void configure_pipe() { // So that others can write umask(0000); if(mkfifo(PIPE_ID, S_IWUSR | S_IRUSR | S_IRGRP | S_IROTH | S_IWGRP | S_IWOTH) != 0)