/**
* Attach network filter driver from bandwidth group.
*
* @returns VBox status code.
* @param pUVM The user mode VM structure.
* @param pDrvIns The driver instance.
* @param pszBwGroup Name of the bandwidth group to attach to.
* @param pFilter Pointer to the filter we attach.
*/
VMMR3_INT_DECL(int) PDMR3NsAttach(PUVM pUVM, PPDMDRVINS pDrvIns, const char *pszBwGroup, PPDMNSFILTER pFilter)
{
VM_ASSERT_EMT(pUVM->pVM);
AssertPtrReturn(pFilter, VERR_INVALID_POINTER);
AssertReturn(pFilter->pBwGroupR3 == NULL, VERR_ALREADY_EXISTS);
RT_NOREF_PV(pDrvIns);
PPDMNETSHAPER pShaper = pUVM->pdm.s.pNetShaper;
LOCK_NETSHAPER_RETURN(pShaper);
int rc = VINF_SUCCESS;
PPDMNSBWGROUP pBwGroupNew = NULL;
if (pszBwGroup)
{
pBwGroupNew = pdmNsBwGroupFindById(pShaper, pszBwGroup);
if (pBwGroupNew)
pdmNsBwGroupRef(pBwGroupNew);
else
rc = VERR_NOT_FOUND;
}
if (RT_SUCCESS(rc))
{
PPDMNSBWGROUP pBwGroupOld = ASMAtomicXchgPtrT(&pFilter->pBwGroupR3, pBwGroupNew, PPDMNSBWGROUP);
ASMAtomicWritePtr(&pFilter->pBwGroupR0, MMHyperR3ToR0(pUVM->pVM, pBwGroupNew));
if (pBwGroupOld)
pdmNsBwGroupUnref(pBwGroupOld);
pdmNsFilterLink(pFilter);
}
UNLOCK_NETSHAPER(pShaper);
return rc;
}
VMMR3DECL(int) PDMR3NsAttach(PVM pVM, PPDMDRVINS pDrvIns, const char *pcszBwGroup,
PPDMNSFILTER pFilter)
{
VM_ASSERT_EMT(pVM);
AssertPtrReturn(pFilter, VERR_INVALID_POINTER);
AssertReturn(pFilter->pBwGroupR3 == NULL, VERR_ALREADY_EXISTS);
PUVM pUVM = pVM->pUVM;
PPDMNETSHAPER pShaper = pUVM->pdm.s.pNetShaper;
PPDMNSBWGROUP pBwGroupOld = NULL;
PPDMNSBWGROUP pBwGroupNew = NULL;
int rc = RTCritSectEnter(&pShaper->cs); AssertRC(rc);
if (RT_SUCCESS(rc))
{
if (pcszBwGroup)
{
pBwGroupNew = pdmNsBwGroupFindById(pShaper, pcszBwGroup);
if (pBwGroupNew)
pdmNsBwGroupRef(pBwGroupNew);
else
rc = VERR_NOT_FOUND;
}
if (RT_SUCCESS(rc))
{
pBwGroupOld = ASMAtomicXchgPtrT(&pFilter->pBwGroupR3, pBwGroupNew, PPDMNSBWGROUP);
ASMAtomicWritePtr(&pFilter->pBwGroupR0, MMHyperR3ToR0(pVM, pBwGroupNew));
if (pBwGroupOld)
pdmNsBwGroupUnref(pBwGroupOld);
pdmNsFilterLink(pFilter);
}
int rc2 = RTCritSectLeave(&pShaper->cs); AssertRC(rc2);
}
return rc;
}
