B.9.1  Registering the Components of a Subsystem-Parallel Stack

Every STREAMS driver and module in the subsystem-parallel stack must identify itself as belonging to that stack. This is done by specifying the same nonNULL third argument to StrmRegisterDriver and StrmRegisterModule.

Example: DriverEntry Routine for a Subsystem-Parallel tcpip.sys

#include <ntddk.h>

#include <stream.h>

#define    SUBSYSTEM_NAME        "tcpip_up"

extern int arpinit(void);

extern int tcpinit(void);

NTSTATUS

DriverEntry(

    IN PDRIVER_OBJECT driver,

    IN PUNICODE_STRING device

    )

{

    NTSTATUS status;

    status = StrmRegisterModule(driver, &arpinfo, SUBSYSTEM_NAME);

    if (status != STATUS_SUCCESS) {

        return(status);

    }

    status = StrmRegisterDriver(

                  driver,

                  &tcpinfo,

                  SUBSYSTEM_NAME,

                  NULL

                  );

    if (status != STATUS_SUCCESS) {

        return(status);

    }

    arpinit();

    tcpinit();

    return(STATUS_SUCCESS);

}