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Definition at line 132 of file deviceio.c. Referenced by AuxGetAudio(), AuxSetAudio(), ClearCommBreak(), ClearCommError(), Control(), createIpForwardEntry(), DECLARE_INTERFACE_(), deleteIpForwardEntry(), EnableVolumeCompression(), EscapeCommFunction(), FindFirstVolumeW(), get_drive_connection(), GetCommMask(), GetCommModemStatus(), GetCommState(), GetCommTimeouts(), GetDeviceCapabilities(), GetDeviceData(), getDriverData(), hasArp(), HidD_FlushQueue(), HidD_GetAttributes(), HidD_GetConfiguration(), HidD_GetFeature(), HidD_GetIndexedString(), HidD_GetInputReport(), HidD_GetManufacturerString(), HidD_GetMsGenreDescriptor(), HidD_GetNumInputBuffers(), HidD_GetPhysicalDescriptor(), HidD_GetPreparsedData(), HidD_GetProductString(), HidD_GetSerialNumberString(), HidD_SetConfiguration(), HidD_SetFeature(), HidD_SetNumInputBuffers(), HidD_SetOutputReport(), IDirectSoundCaptureBufferImpl_Start(), IsWlanAdapter(), CKsInterfaceHandler::KsProcessMediaSamples(), KsSynchronousDeviceControl(), main(), MCICDA_CalcFrame(), MCICDA_CalcTime(), MCICDA_GetStatus(), MCICDA_Info(), MCICDA_Pause(), MCICDA_Play(), MCICDA_playLoop(), MCICDA_Resume(), MCICDA_Seek(), MCICDA_SetDoor(), MCICDA_SkipDataTracks(), MCICDA_Status(), MCICDA_Stop(), OpenAdapterHandle(), OpenDriverHandle(), PrimaryDirectSoundBuffer_Write(), PurgeComm(), RemoveDirectoryW(), SendRequest(), SerenumDetectLegacyDevice(), SerenumDetectPnpDevice(), SermouseDetectLegacyDevice(), SetCommBreak(), SetCommMask(), SetCommState(), SetCommTimeouts(), setDriverData(), SetIpNetEntry(), SetupComm(), SetWaveFormat(), SyncOverlappedDeviceIoControl(), tdiGetMibForIfEntity(), tdiGetMibForIpEntity(), tdiGetSetOfThings(), TestKs(), TransmitCommChar(), TuiDrawRegion(), TuiInit(), TuiSetCursorInfo(), TuiSetScreenInfo(), TuiSwapConsole(), WahCreateSocketHandle(), WaitCommEvent(), WlanConnect(), WlanDisconnect(), WlanPrintCurrentStatus(), WlanScan(), and WriteMidi(). {
BOOL FsIoCtl;
NTSTATUS Status;
PVOID ApcContext;
IO_STATUS_BLOCK Iosb;
//
// Note: on a TS Machine, we should call IsTSAppCompatEnabled and unless the
// IOCTLs are IOCTL_STORAGE_EJECT_MEDIA, IOCTL_DISK_EJECT_MEDIA, FSCTL_DISMOUNT_VOLUME
// we should call IsCallerAdminOrSystem and return STATUS_ACCESS_DENIED for
// any other IOCTLs.
//
/* Check what kind of IOCTL to send */
FsIoCtl = ((dwIoControlCode >> 16) == FILE_DEVICE_FILE_SYSTEM);
/* CHeck for async */
if (lpOverlapped != NULL)
{
/* Set pending status */
lpOverlapped->Internal = STATUS_PENDING;
/* Check if there's an APC context */
ApcContext = (((ULONG_PTR)lpOverlapped->hEvent & 0x1) ? NULL : lpOverlapped);
/* Send file system control? */
if (FsIoCtl)
{
/* Send it */
Status = NtFsControlFile(hDevice,
lpOverlapped->hEvent,
NULL,
ApcContext,
(PIO_STATUS_BLOCK)lpOverlapped,
dwIoControlCode,
lpInBuffer,
nInBufferSize,
lpOutBuffer,
nOutBufferSize);
}
else
{
/* Otherwise send a device control */
Status = NtDeviceIoControlFile(hDevice,
lpOverlapped->hEvent,
NULL,
ApcContext,
(PIO_STATUS_BLOCK)lpOverlapped,
dwIoControlCode,
lpInBuffer,
nInBufferSize,
lpOutBuffer,
nOutBufferSize);
}
/* Check for or information instead of failure */
if (!(NT_ERROR(Status)) && (lpBytesReturned))
{
/* Protect with SEH */
_SEH2_TRY
{
/* Return the bytes */
*lpBytesReturned = lpOverlapped->InternalHigh;
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
/* Return zero bytes */
*lpBytesReturned = 0;
}
_SEH2_END;
}
/* Now check for any kind of failure except pending*/
if (!(NT_SUCCESS(Status)) || (Status == STATUS_PENDING))
{
/* Fail */
BaseSetLastNTError(Status);
return FALSE;
}
}
else
{
/* Sync case -- send file system code? */
if (FsIoCtl)
{
/* Do it */
Status = NtFsControlFile(hDevice,
NULL,
NULL,
NULL,
&Iosb,
dwIoControlCode,
lpInBuffer,
nInBufferSize,
lpOutBuffer,
nOutBufferSize);
}
else
{
/* Send device code instead */
Status = NtDeviceIoControlFile(hDevice,
NULL,
NULL,
NULL,
&Iosb,
dwIoControlCode,
lpInBuffer,
nInBufferSize,
lpOutBuffer,
nOutBufferSize);
}
/* Now check if the operation isn't done yet */
if (Status == STATUS_PENDING)
{
/* Wait for it and get the final status */
Status = NtWaitForSingleObject(hDevice, FALSE, NULL);
if (NT_SUCCESS(Status)) Status = Iosb.Status;
}
/* Check for success */
if (NT_SUCCESS(Status))
{
/* Return the byte count */
*lpBytesReturned = Iosb.Information;
}
else
{
/* Check for informational or warning failure */
if (!NT_ERROR(Status)) *lpBytesReturned = Iosb.Information;
/* Return a failure */
BaseSetLastNTError(Status);
return FALSE;
}
}
/* Return success */
return TRUE;
}
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