int vboxNetFltOsInitInstance(PVBOXNETFLTINS pThis, void *pvContext)
{
char nam[NG_NODESIZ];
struct ifnet *ifp;
node_p node;
RTSPINLOCKTMP Tmp = RTSPINLOCKTMP_INITIALIZER;
VBOXCURVNET_SET_FROM_UCRED();
NOREF(pvContext);
ifp = ifunit(pThis->szName);
if (ifp == NULL)
return VERR_INTNET_FLT_IF_NOT_FOUND;
/* Create a new netgraph node for this instance */
if (ng_make_node_common(&ng_vboxnetflt_typestruct, &node) != 0)
return VERR_INTERNAL_ERROR;
RTSpinlockAcquireNoInts(pThis->hSpinlock, &Tmp);
ASMAtomicUoWritePtr(&pThis->u.s.ifp, ifp);
pThis->u.s.node = node;
bcopy(IF_LLADDR(ifp), &pThis->u.s.MacAddr, ETHER_ADDR_LEN);
ASMAtomicUoWriteBool(&pThis->fDisconnectedFromHost, false);
/* Initialize deferred input queue */
bzero(&pThis->u.s.inq, sizeof(struct ifqueue));
mtx_init(&pThis->u.s.inq.ifq_mtx, "vboxnetflt inq", NULL, MTX_SPIN);
TASK_INIT(&pThis->u.s.tskin, 0, vboxNetFltFreeBSDinput, pThis);
/* Initialize deferred output queue */
bzero(&pThis->u.s.outq, sizeof(struct ifqueue));
mtx_init(&pThis->u.s.outq.ifq_mtx, "vboxnetflt outq", NULL, MTX_SPIN);
TASK_INIT(&pThis->u.s.tskout, 0, vboxNetFltFreeBSDoutput, pThis);
RTSpinlockReleaseNoInts(pThis->hSpinlock, &Tmp);
NG_NODE_SET_PRIVATE(node, pThis);
/* Attempt to name it vboxnetflt_<ifname> */
snprintf(nam, NG_NODESIZ, "vboxnetflt_%s", pThis->szName);
ng_name_node(node, nam);
/* Report MAC address, promiscuous mode and GSO capabilities. */
/** @todo keep these reports up to date, either by polling for changes or
* intercept some control flow if possible. */
if (vboxNetFltTryRetainBusyNotDisconnected(pThis))
{
Assert(pThis->pSwitchPort);
pThis->pSwitchPort->pfnReportMacAddress(pThis->pSwitchPort, &pThis->u.s.MacAddr);
pThis->pSwitchPort->pfnReportPromiscuousMode(pThis->pSwitchPort, vboxNetFltFreeBsdIsPromiscuous(pThis));
pThis->pSwitchPort->pfnReportGsoCapabilities(pThis->pSwitchPort, 0, INTNETTRUNKDIR_WIRE | INTNETTRUNKDIR_HOST);
pThis->pSwitchPort->pfnReportNoPreemptDsts(pThis->pSwitchPort, 0 /* none */);
vboxNetFltRelease(pThis, true /*fBusy*/);
}
VBOXCURVNET_RESTORE();
return VINF_SUCCESS;
}
void vboxNetFltOsDeleteInstance(PVBOXNETFLTINS pThis)
{
taskqueue_drain(taskqueue_fast, &pThis->u.s.tskin);
taskqueue_drain(taskqueue_fast, &pThis->u.s.tskout);
mtx_destroy(&pThis->u.s.inq.ifq_mtx);
mtx_destroy(&pThis->u.s.outq.ifq_mtx);
VBOXCURVNET_SET_FROM_UCRED();
if (pThis->u.s.node != NULL)
ng_rmnode_self(pThis->u.s.node);
VBOXCURVNET_RESTORE();
pThis->u.s.node = NULL;
}
