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 NDIS_HANDLE GlobalPacketPoolHandle;
  19 NDIS_HANDLE GlobalBufferPoolHandle;
  20
  21 NDIS_STRING ProtocolName = RTL_CONSTANT_STRING(L"NDISUIO");
  22
  23 VOID NTAPI NduUnload(PDRIVER_OBJECT DriverObject)
  24 {
  25     DPRINT1("NDISUIO: Unloaded\n");
  26 }
  27
  28 NTSTATUS
  29 NTAPI
  30 DriverEntry(PDRIVER_OBJECT DriverObject,
  31             PUNICODE_STRING RegistryPath)
  32 {
  33     NDIS_STATUS Status;
  34     NDIS_PROTOCOL_CHARACTERISTICS Chars;
  35     UNICODE_STRING NtDeviceName = RTL_CONSTANT_STRING(NDISUIO_DEVICE_NAME_NT);
  36     UNICODE_STRING DosDeviceName = RTL_CONSTANT_STRING(NDISUIO_DEVICE_NAME_DOS);
  37
  38     /* Setup dispatch functions */
  39     DriverObject->MajorFunction[IRP_MJ_CREATE] = NduDispatchCreate;
  40     DriverObject->MajorFunction[IRP_MJ_CLOSE] = NduDispatchClose;
  41     DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = NduDispatchDeviceControl;
  42     DriverObject->MajorFunction[IRP_MJ_READ] = NduDispatchRead;
  43     DriverObject->MajorFunction[IRP_MJ_WRITE] = NduDispatchWrite;
  44     DriverObject->DriverUnload = NduUnload;
  45
  46     /* Setup global state */
  47     InitializeListHead(&GlobalAdapterList);
  48     KeInitializeSpinLock(&GlobalAdapterListLock);
  49
  50     /* Create the NDISUIO device object */
  51     Status = IoCreateDevice(DriverObject,
  52                             0,
  53                             &NtDeviceName,
  54                             FILE_DEVICE_SECURE_OPEN,
  55                             0,
  56                             FALSE,
  57                             &GlobalDeviceObject);
  58     if (!NT_SUCCESS(Status))
  59     {
  60         DPRINT1("Failed to create device object with status 0x%x\n", Status);
  61         return Status;
  62     }
  63
  64     /* Create a symbolic link into the DOS devices namespace */
  65     Status = IoCreateSymbolicLink(&DosDeviceName, &NtDeviceName);
  66     if (!NT_SUCCESS(Status))
  67     {
  68         DPRINT1("Failed to create symbolic link with status 0x%x\n", Status);
  69         IoDeleteDevice(GlobalDeviceObject);
  70         return Status;
  71     }
  72
  73     /* Create the buffer pool */
  74     NdisAllocateBufferPool(&Status,
  75                            &GlobalBufferPoolHandle,
  76                            100);
  77     if (Status != NDIS_STATUS_SUCCESS)
  78     {
  79         DPRINT1("Failed to allocate buffer pool with status 0x%x\n", Status);
  80         IoDeleteSymbolicLink(&DosDeviceName);
  81         IoDeleteDevice(GlobalDeviceObject);
  82         return Status;
  83     }
  84
  85     /* Create the packet pool */
  86     NdisAllocatePacketPool(&Status,
  87                            &GlobalPacketPoolHandle,
  88                            50,
  89                            0);
  90     if (Status != NDIS_STATUS_SUCCESS)
  91     {
  92         DPRINT1("Failed to allocate packet pool with status 0x%x\n", Status);
  93         NdisFreeBufferPool(GlobalBufferPoolHandle);
  94         IoDeleteSymbolicLink(&DosDeviceName);
  95         IoDeleteDevice(GlobalDeviceObject);
  96         return Status;
  97     }
  98
  99     /* Register the protocol with NDIS */
 100     RtlZeroMemory(&Chars, sizeof(Chars));
 101     Chars.MajorNdisVersion = NDIS_MAJOR_VERSION;
 102     Chars.MinorNdisVersion = NDIS_MINOR_VERSION;
 103     Chars.OpenAdapterCompleteHandler = NduOpenAdapterComplete;
 104     Chars.CloseAdapterCompleteHandler = NduCloseAdapterComplete;
 105     Chars.SendCompleteHandler = NduSendComplete;
 106     Chars.TransferDataCompleteHandler = NduTransferDataComplete;
 107     Chars.ResetCompleteHandler = NduResetComplete;
 108     Chars.RequestCompleteHandler = NduRequestComplete;
 109     Chars.ReceiveHandler = NduReceive;
 110     Chars.ReceiveCompleteHandler = NduReceiveComplete;
 111     Chars.StatusHandler = NduStatus;
 112     Chars.StatusCompleteHandler = NduStatusComplete;
 113     Chars.Name = ProtocolName;
 114     Chars.BindAdapterHandler = NduBindAdapter;
 115     Chars.UnbindAdapterHandler = NduUnbindAdapter;
 116
 117     NdisRegisterProtocol(&Status,
 118                          &GlobalProtocolHandle,
 119                          &Chars,
 120                          sizeof(Chars));
 121     if (Status != NDIS_STATUS_SUCCESS)
 122     {
 123         DPRINT1("Failed to register protocol with status 0x%x\n", Status);
 124         NdisFreePacketPool(GlobalPacketPoolHandle);
 125         NdisFreeBufferPool(GlobalBufferPoolHandle);
 126         IoDeleteSymbolicLink(&DosDeviceName);
 127         IoDeleteDevice(GlobalDeviceObject);
 128         return Status;
 129     }
 130
 131     DPRINT1("NDISUIO: Loaded\n");
 132
 133     return STATUS_SUCCESS;
 134 }