drivers/network/ndisuio/main.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS NDIS User I/O driver
   4  * FILE:        main.c
   5  * PURPOSE:     Driver entry point and protocol initialization
   6  * PROGRAMMERS: Cameron Gutman (cameron.gutman@reactos.org)
   7  */
   8
   9 #include "ndisuio.h"
  10
  11 //#define NDEBUG
  12 #include <debug.h>
  13
  14 PDEVICE_OBJECT GlobalDeviceObject;
  15 NDIS_HANDLE GlobalProtocolHandle;
  16 KSPIN_LOCK GlobalAdapterListLock;
  17 LIST_ENTRY GlobalAdapterList;
  18
  19 NDIS_STRING ProtocolName = RTL_CONSTANT_STRING(L"NDISUIO");
  20
  21 VOID NTAPI NduUnload(PDRIVER_OBJECT DriverObject)
  22 {
  23     DPRINT("NDISUIO: Unloaded\n");
  24 }
  25
  26 NTSTATUS
  27 NTAPI
  28 DriverEntry(PDRIVER_OBJECT DriverObject,
  29             PUNICODE_STRING RegistryPath)
  30 {
  31     NDIS_STATUS Status;
  32     NDIS_PROTOCOL_CHARACTERISTICS Chars;
  33     UNICODE_STRING NtDeviceName = RTL_CONSTANT_STRING(NDISUIO_DEVICE_NAME_NT);
  34     UNICODE_STRING DosDeviceName = RTL_CONSTANT_STRING(NDISUIO_DEVICE_NAME_DOS);
  35
  36     /* Setup dispatch functions */
  37     DriverObject->MajorFunction[IRP_MJ_CREATE] = NduDispatchCreate;
  38     DriverObject->MajorFunction[IRP_MJ_CLOSE] = NduDispatchClose;
  39     DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = NduDispatchDeviceControl;
  40     DriverObject->MajorFunction[IRP_MJ_READ] = NduDispatchRead;
  41     DriverObject->MajorFunction[IRP_MJ_WRITE] = NduDispatchWrite;
  42     DriverObject->DriverUnload = NduUnload;
  43
  44     /* Setup global state */
  45     InitializeListHead(&GlobalAdapterList);
  46     KeInitializeSpinLock(&GlobalAdapterListLock);
  47
  48     /* Create the NDISUIO device object */
  49     Status = IoCreateDevice(DriverObject,
  50                             0,
  51                             &NtDeviceName,
  52                             FILE_DEVICE_SECURE_OPEN,
  53                             0,
  54                             FALSE,
  55                             &GlobalDeviceObject);
  56     if (!NT_SUCCESS(Status))
  57     {
  58         DPRINT1("Failed to create device object with status 0x%x\n", Status);
  59         return Status;
  60     }
  61
  62     /* Create a symbolic link into the DOS devices namespace */
  63     Status = IoCreateSymbolicLink(&DosDeviceName, &NtDeviceName);
  64     if (!NT_SUCCESS(Status))
  65     {
  66         DPRINT1("Failed to create symbolic link with status 0x%x\n", Status);
  67         IoDeleteDevice(GlobalDeviceObject);
  68         return Status;
  69     }
  70
  71     /* Register the protocol with NDIS */
  72     RtlZeroMemory(&Chars, sizeof(Chars));
  73     Chars.MajorNdisVersion = NDIS_MAJOR_VERSION;
  74     Chars.MinorNdisVersion = NDIS_MINOR_VERSION;
  75     Chars.OpenAdapterCompleteHandler = NduOpenAdapterComplete;
  76     Chars.CloseAdapterCompleteHandler = NduCloseAdapterComplete;
  77     Chars.SendCompleteHandler = NduSendComplete;
  78     Chars.TransferDataCompleteHandler = NduTransferDataComplete;
  79     Chars.ResetCompleteHandler = NduResetComplete;
  80     Chars.RequestCompleteHandler = NduRequestComplete;
  81     Chars.ReceiveHandler = NduReceive;
  82     Chars.ReceiveCompleteHandler = NduReceiveComplete;
  83     Chars.StatusHandler = NduStatus;
  84     Chars.StatusCompleteHandler = NduStatusComplete;
  85     Chars.Name = ProtocolName;
  86     Chars.BindAdapterHandler = NduBindAdapter;
  87     Chars.UnbindAdapterHandler = NduUnbindAdapter;
  88
  89     NdisRegisterProtocol(&Status,
  90                          &GlobalProtocolHandle,
  91                          &Chars,
  92                          sizeof(Chars));
  93     if (Status != NDIS_STATUS_SUCCESS)
  94     {
  95         DPRINT1("Failed to register protocol with status 0x%x\n", Status);
  96         IoDeleteSymbolicLink(&DosDeviceName);
  97         IoDeleteDevice(GlobalDeviceObject);
  98         return Status;
  99     }
 100
 101     DPRINT("NDISUIO: Loaded\n");
 102
 103     return STATUS_SUCCESS;
 104 }