drivers/sac/driver/init.c

   1 /*
   2  * PROJECT:              ReactOS Boot Loader
   3  * LICENSE:              BSD - See COPYING.ARM in the top level directory
   4  * FILE:                 drivers/sac/driver/init.c
   5  * PURPOSE:              Driver for the Server Administration Console (SAC) for EMS
   6  * PROGRAMMERS:  ReactOS Portable Systems Group
   7  */
   8
   9 /* INCLUDES *******************************************************************/
  10
  11 #include "sacdrv.h"
  12
  13 /* GLOBALS ********************************************************************/
  14
  15 /* FUNCTIONS ******************************************************************/
  16
  17 NTSTATUS
  18 NTAPI
  19 DriverEntry(
  20         IN PDRIVER_OBJECT DriverObject,
  21         IN PUNICODE_STRING RegistryPath
  22         )
  23 {
  24         HEADLESS_RSP_QUERY_INFO HeadlessInformation;
  25         ULONG InfoSize;
  26         NTSTATUS Status;
  27         UNICODE_STRING DriverName;
  28         PDEVICE_OBJECT DeviceObject;
  29         PSAC_DEVICE_EXTENSION DeviceExtension;
  30         PAGED_CODE();
  31
  32         SAC_DBG(SAC_DBG_ENTRY_EXIT, "Entering.\n");
  33
  34         HeadlessDispatch(
  35                 HeadlessCmdQueryInformation,
  36                 NULL,
  37                 0,
  38                 &HeadlessInformation,
  39                 &InfoSize
  40                 );
  41         if ((HeadlessInformation.Serial.TerminalType != HeadlessUndefinedPortType) &&
  42                 ((HeadlessInformation.Serial.TerminalType != HeadlessSerialPort) ||
  43                  (HeadlessInformation.Serial.TerminalAttached)))
  44         {
  45                 RtlInitUnicodeString(&DriverName, L"\\Device\\SAC");
  46
  47                 Status = IoCreateDevice(
  48                         DriverObject,
  49                         sizeof(SAC_DEVICE_EXTENSION),
  50                         &DriverName,
  51                         FILE_DEVICE_UNKNOWN,
  52                         FILE_DEVICE_SECURE_OPEN,
  53                         FALSE,
  54                         &DeviceObject
  55                         );
  56                 if (NT_SUCCESS(Status))
  57                 {
  58                         DeviceExtension = DeviceObject->DeviceExtension;
  59                         DeviceExtension->Initialized = FALSE;
  60
  61                         RtlFillMemoryUlong(
  62                                 DriverObject->MajorFunction,
  63                                 sizeof(DriverObject->MajorFunction) / sizeof(PVOID),
  64                                 (ULONG_PTR)Dispatch);
  65                         DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] =
  66                                 DispatchDeviceControl;
  67                         DriverObject->MajorFunction[IRP_MJ_SHUTDOWN] =
  68                                 DispatchShutdownControl;
  69                         DriverObject->FastIoDispatch = NULL;
  70                         DriverObject->DriverUnload = UnloadHandler;
  71
  72                         if (InitializeGlobalData(RegistryPath, DriverObject))
  73                         {
  74                                 if (InitializeDeviceData(DeviceObject))
  75                                 {
  76                                         IoRegisterShutdownNotification(DeviceObject);
  77                                         return Status;
  78                                 }
  79                         }
  80
  81                         Status = STATUS_INSUFFICIENT_RESOURCES;
  82                 }
  83                 else
  84                 {
  85                         SAC_DBG(SAC_DBG_INIT, "unable to create device object: %X\n", Status);
  86                 }
  87
  88                 FreeGlobalData();
  89                 SAC_DBG(SAC_DBG_ENTRY_EXIT, "Exiting with status 0x%x\n", Status);
  90                 return Status;
  91         }
  92
  93         return STATUS_PORT_DISCONNECTED;
  94 }