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sys, dll: NetworkProvider implementation (NPGetConnection)

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This commit is contained in:
Bill Zissimopoulos
2016-04-19 14:29:07 -07:00
parent c40ce93fe2
commit 1bcd3cec0a
11 changed files with 546 additions and 0 deletions
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55
src/dll/fsctl.c
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@ -119,3 +119,58 @@ FSP_API NTSTATUS FspFsctlStop(HANDLE VolumeHandle)
return STATUS_SUCCESS;
}
FSP_API NTSTATUS FspFsctlGetVolumeList(PWSTR DevicePath,
PWCHAR VolumeListBuf, PSIZE_T PVolumeListSize)
{
NTSTATUS Result;
PWSTR DeviceRoot;
SIZE_T DeviceRootSize, DevicePathSize;
WCHAR DevicePathBuf[MAX_PATH], *DevicePathPtr;
HANDLE VolumeHandle = INVALID_HANDLE_VALUE;
DWORD Bytes;
/* check lengths; everything must fit within MAX_PATH */
DeviceRoot = L'\\' == DevicePath[0] ? GLOBALROOT : GLOBALROOT "\\Device\\";
DeviceRootSize = lstrlenW(DeviceRoot) * sizeof(WCHAR);
DevicePathSize = lstrlenW(DevicePath) * sizeof(WCHAR);
if (DeviceRootSize + DevicePathSize + sizeof(WCHAR) > sizeof DevicePathBuf)
return STATUS_INVALID_PARAMETER;
/* prepare the device path to be opened */
DevicePathPtr = DevicePathBuf;
memcpy(DevicePathPtr, DeviceRoot, DeviceRootSize);
DevicePathPtr = (PVOID)((PUINT8)DevicePathPtr + DeviceRootSize);
memcpy(DevicePathPtr, DevicePath, DevicePathSize);
DevicePathPtr = (PVOID)((PUINT8)DevicePathPtr + DevicePathSize);
*DevicePathPtr = L'\0';
VolumeHandle = CreateFileW(DevicePathBuf,
0, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
if (INVALID_HANDLE_VALUE == VolumeHandle)
{
Result = FspNtStatusFromWin32(GetLastError());
if (STATUS_OBJECT_PATH_NOT_FOUND == Result ||
STATUS_OBJECT_NAME_NOT_FOUND == Result)
Result = STATUS_NO_SUCH_DEVICE;
goto exit;
}
if (!DeviceIoControl(VolumeHandle, FSP_FSCTL_VOLUME_LIST,
0, 0,
VolumeListBuf, (DWORD)*PVolumeListSize,
&Bytes, 0))
{
Result = FspNtStatusFromWin32(GetLastError());
goto exit;
}
*PVolumeListSize = Bytes;
Result = STATUS_SUCCESS;
exit:
if (INVALID_HANDLE_VALUE != VolumeHandle)
CloseHandle(VolumeHandle);
return Result;
}