/**
* The SUPDRV IDC entry point.
*
* @returns VBox status code, see supdrvIDC.
* @param iReq The request code.
* @param pReq The request.
*/
int VBOXCALL SUPDrvSolarisIDC(uint32_t uReq, PSUPDRVIDCREQHDR pReq)
{
PSUPDRVSESSION pSession;
/*
* Some quick validations.
*/
if (RT_UNLIKELY(!VALID_PTR(pReq)))
return VERR_INVALID_POINTER;
pSession = pReq->pSession;
if (pSession)
{
if (RT_UNLIKELY(!VALID_PTR(pSession)))
return VERR_INVALID_PARAMETER;
if (RT_UNLIKELY(pSession->pDevExt != &g_DevExt))
return VERR_INVALID_PARAMETER;
}
else if (RT_UNLIKELY(uReq != SUPDRV_IDC_REQ_CONNECT))
return VERR_INVALID_PARAMETER;
/*
* Do the job.
*/
return supdrvIDC(uReq, &g_DevExt, pSession, pReq);
}
/**
* Internal Device I/O Control entry point, used for IDC.
*
* @param pDevObj Device object.
* @param pIrp Request packet.
*/
NTSTATUS _stdcall VBoxDrvNtInternalDeviceControl(PDEVICE_OBJECT pDevObj, PIRP pIrp)
{
PSUPDRVDEVEXT pDevExt = (PSUPDRVDEVEXT)pDevObj->DeviceExtension;
PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
PFILE_OBJECT pFileObj = pStack ? pStack->FileObject : NULL;
PSUPDRVSESSION pSession = pFileObj ? (PSUPDRVSESSION)pFileObj->FsContext : NULL;
NTSTATUS rcNt;
unsigned cbOut = 0;
int rc = 0;
Log2(("VBoxDrvNtInternalDeviceControl(%p,%p): ioctl=%#x pBuf=%p cbIn=%#x cbOut=%#x pSession=%p\n",
pDevExt, pIrp, pStack->Parameters.DeviceIoControl.IoControlCode,
pIrp->AssociatedIrp.SystemBuffer, pStack->Parameters.DeviceIoControl.InputBufferLength,
pStack->Parameters.DeviceIoControl.OutputBufferLength, pSession));
/* Verify that it's a buffered CTL. */
if ((pStack->Parameters.DeviceIoControl.IoControlCode & 0x3) == METHOD_BUFFERED)
{
/* Verify the pDevExt in the session. */
if ( pStack->Parameters.DeviceIoControl.IoControlCode != SUPDRV_IDC_REQ_CONNECT
? VALID_PTR(pSession) && pSession->pDevExt == pDevExt
: !pSession
)
{
/* Verify that the size in the request header is correct. */
PSUPDRVIDCREQHDR pHdr = (PSUPDRVIDCREQHDR)pIrp->AssociatedIrp.SystemBuffer;
if ( pStack->Parameters.DeviceIoControl.InputBufferLength >= sizeof(*pHdr)
&& pStack->Parameters.DeviceIoControl.InputBufferLength == pHdr->cb
&& pStack->Parameters.DeviceIoControl.OutputBufferLength == pHdr->cb)
{
/*
* Call the generic code.
*
* Note! Connect and disconnect requires some extra attention
* in order to get the session handling right.
*/
if (pStack->Parameters.DeviceIoControl.IoControlCode == SUPDRV_IDC_REQ_DISCONNECT)
pFileObj->FsContext = NULL;
rc = supdrvIDC(pStack->Parameters.DeviceIoControl.IoControlCode, pDevExt, pSession, pHdr);
if (!rc)
{
if (pStack->Parameters.DeviceIoControl.IoControlCode == SUPDRV_IDC_REQ_CONNECT)
pFileObj->FsContext = ((PSUPDRVIDCREQCONNECT)pHdr)->u.Out.pSession;
rcNt = STATUS_SUCCESS;
cbOut = pHdr->cb;
}
else
{
rcNt = STATUS_INVALID_PARAMETER;
if (pStack->Parameters.DeviceIoControl.IoControlCode == SUPDRV_IDC_REQ_DISCONNECT)
pFileObj->FsContext = pSession;
}
Log2(("VBoxDrvNtInternalDeviceControl: returns %#x/rc=%#x\n", rcNt, rc));
}
else
{
Log(("VBoxDrvNtInternalDeviceControl: Mismatching sizes (%#x) - Hdr=%#lx Irp=%#lx/%#lx!\n",
pStack->Parameters.DeviceIoControl.IoControlCode,
pStack->Parameters.DeviceIoControl.InputBufferLength >= sizeof(*pHdr) ? pHdr->cb : 0,
pStack->Parameters.DeviceIoControl.InputBufferLength,
pStack->Parameters.DeviceIoControl.OutputBufferLength));
rcNt = STATUS_INVALID_PARAMETER;
}
}
else
rcNt = STATUS_NOT_SUPPORTED;
}
else
{
Log(("VBoxDrvNtInternalDeviceControl: not buffered request (%#x) - not supported\n",
pStack->Parameters.DeviceIoControl.IoControlCode));
rcNt = STATUS_NOT_SUPPORTED;
}
/* complete the request. */
pIrp->IoStatus.Status = rcNt;
pIrp->IoStatus.Information = cbOut;
IoCompleteRequest(pIrp, IO_NO_INCREMENT);
return rcNt;
}
