init.c

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/*
 * PROJECT:      ReactOS Boot Loader
 * LICENSE:      BSD - See COPYING.ARM in the top level directory
 * FILE:         drivers/sac/driver/init.c
 * PURPOSE:      Driver for the Server Administration Console (SAC) for EMS
 * PROGRAMMERS:  ReactOS Portable Systems Group
 */

/* INCLUDES *******************************************************************/

#include "sacdrv.h"

/* GLOBALS ********************************************************************/

/* FUNCTIONS ******************************************************************/

NTSTATUS
NTAPI
DriverEntry(
    IN PDRIVER_OBJECT DriverObject,
    IN PUNICODE_STRING RegistryPath
    )
{
    HEADLESS_RSP_QUERY_INFO HeadlessInformation;
    ULONG InfoSize;
    NTSTATUS Status;
    UNICODE_STRING DriverName;
    PDEVICE_OBJECT DeviceObject;
    PSAC_DEVICE_EXTENSION DeviceExtension;
    PAGED_CODE();

    SAC_DBG(SAC_DBG_ENTRY_EXIT, "Entering.\n");

    HeadlessDispatch(
        HeadlessCmdQueryInformation,
        NULL,
        0,
        &HeadlessInformation,
        &InfoSize
        );
    if ((HeadlessInformation.Serial.TerminalType != HeadlessUndefinedPortType) &&
        ((HeadlessInformation.Serial.TerminalType != HeadlessSerialPort) ||
         (HeadlessInformation.Serial.TerminalAttached)))
    {
        RtlInitUnicodeString(&DriverName, L"\\Device\\SAC");

        Status = IoCreateDevice(
            DriverObject,
            sizeof(SAC_DEVICE_EXTENSION),
            &DriverName,
            FILE_DEVICE_UNKNOWN,
            FILE_DEVICE_SECURE_OPEN,
            FALSE,
            &DeviceObject
            );
        if (NT_SUCCESS(Status))
        {
            DeviceExtension = DeviceObject->DeviceExtension;
            DeviceExtension->Initialized = FALSE;

            RtlFillMemoryUlong(
                DriverObject->MajorFunction,
                sizeof(DriverObject->MajorFunction) / sizeof(PVOID),
                (ULONG_PTR)Dispatch);
            DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] =
                DispatchDeviceControl;
            DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] =
                DispatchShutdownControl;
            DriverObject->FastIoDispatch = NULL;
            DriverObject->DriverUnload = UnloadHandler;

            if (InitializeGlobalData(RegistryPath, DriverObject))
            {
                if (InitializeDeviceData(DeviceObject))
                {
                    IoRegisterShutdownNotification(DeviceObject);
                    return Status;
                }
            }

            Status = STATUS_INSUFFICIENT_RESOURCES;
        }
        else
        {
            SAC_DBG(SAC_DBG_INIT, "unable to create device object: %X\n", Status);
        }

        FreeGlobalData();
        SAC_DBG(SAC_DBG_ENTRY_EXIT, "Exiting with status 0x%x\n", Status);
        return Status;
    }

    return STATUS_PORT_DISCONNECTED;
}