static errno_t
ether_inet6_prmod_ioctl(ifnet_t ifp, protocol_family_t protocol_family,
u_long command, void *data)
{
#pragma unused(protocol_family)
int error = 0;
switch (command) {
case SIOCSIFADDR: /* struct ifaddr pointer */
/*
* Note: caller of ifnet_ioctl() passes in pointer to
* struct ifaddr as parameter to SIOCSIFADDR, for legacy
* reasons.
*/
if ((ifp->if_flags & IFF_RUNNING) == 0) {
ifnet_set_flags(ifp, IFF_UP, IFF_UP);
ifnet_ioctl(ifp, 0, SIOCSIFFLAGS, NULL);
}
break;
case SIOCGIFADDR: { /* struct ifreq */
struct ifreq *ifr = (struct ifreq *)(void *)data;
(void) ifnet_guarded_lladdr_copy_bytes(ifp,
ifr->ifr_addr.sa_data, ETHER_ADDR_LEN);
break;
}
default:
error = EOPNOTSUPP;
break;
}
return (error);
}
/**
*
* @see iff_event_func in the darwin kpi.
*/
static void vboxNetFltDarwinIffEvent(void *pvThis, ifnet_t pIfNet, protocol_family_t eProtocol, const struct kev_msg *pEvMsg)
{
PVBOXNETFLTINS pThis = (PVBOXNETFLTINS)pvThis;
LogFlow(("vboxNetFltDarwinIffEvent: pThis=%p\n", pThis));
NOREF(pThis);
NOREF(pIfNet);
NOREF(eProtocol);
NOREF(pEvMsg);
/*
* Watch out for the interface going online / offline.
*/
if ( VALID_PTR(pThis)
&& VALID_PTR(pEvMsg)
&& pEvMsg->vendor_code == KEV_VENDOR_APPLE
&& pEvMsg->kev_class == KEV_NETWORK_CLASS
&& pEvMsg->kev_subclass == KEV_DL_SUBCLASS)
{
if (pThis->u.s.pIfNet == pIfNet)
{
if (pEvMsg->event_code == KEV_DL_LINK_ON)
{
if (ASMAtomicUoReadBool(&pThis->u.s.fNeedSetPromiscuous))
{
/* failed to bring it online. */
errno_t err = ifnet_set_promiscuous(pIfNet, 1);
if (!err)
{
ASMAtomicWriteBool(&pThis->u.s.fSetPromiscuous, true);
ASMAtomicWriteBool(&pThis->u.s.fNeedSetPromiscuous, false);
Log(("vboxNetFltDarwinIffEvent: enabled promiscuous mode on %s (%d)\n", pThis->szName, VBOX_GET_PCOUNT(pIfNet)));
}
else
Log(("vboxNetFltDarwinIffEvent: ifnet_set_promiscuous failed on %s, err=%d (%d)\n", pThis->szName, err, VBOX_GET_PCOUNT(pIfNet)));
}
else if ( ASMAtomicUoReadBool(&pThis->u.s.fSetPromiscuous)
&& !(ifnet_flags(pIfNet) & IFF_PROMISC))
{
/* Try fix the inconsistency. */
errno_t err = ifnet_set_flags(pIfNet, IFF_PROMISC, IFF_PROMISC);
if (!err)
err = ifnet_ioctl(pIfNet, 0, SIOCSIFFLAGS, NULL);
if (!err && (ifnet_flags(pIfNet) & IFF_PROMISC))
Log(("vboxNetFltDarwinIffEvent: fixed IFF_PROMISC on %s (%d)\n", pThis->szName, VBOX_GET_PCOUNT(pIfNet)));
else
Log(("vboxNetFltDarwinIffEvent: failed to fix IFF_PROMISC on %s, err=%d flags=%#x (%d)\n",
pThis->szName, err, ifnet_flags(pIfNet), VBOX_GET_PCOUNT(pIfNet)));
}
else
Log(("vboxNetFltDarwinIffEvent: online, '%s'. flags=%#x (%d)\n", pThis->szName, ifnet_flags(pIfNet), VBOX_GET_PCOUNT(pIfNet)));
}
else if (pEvMsg->event_code == KEV_DL_LINK_OFF)
Log(("vboxNetFltDarwinIffEvent: %s goes down (%d)\n", pThis->szName, VBOX_GET_PCOUNT(pIfNet)));
/** @todo KEV_DL_LINK_ADDRESS_CHANGED -> pfnReportMacAddress */
/** @todo KEV_DL_SIFFLAGS -> pfnReportPromiscuousMode */
}
else
Log(("vboxNetFltDarwinIffEvent: pThis->u.s.pIfNet=%p pIfNet=%p (%d)\n", pThis->u.s.pIfNet, pIfNet, VALID_PTR(pIfNet) ? VBOX_GET_PCOUNT(pIfNet) : -1));
}
else if (VALID_PTR(pEvMsg))
Log(("vboxNetFltDarwinIffEvent: vendor_code=%#x kev_class=%#x kev_subclass=%#x event_code=%#x\n",
pEvMsg->vendor_code, pEvMsg->kev_class, pEvMsg->kev_subclass, pEvMsg->event_code));
}
void vboxNetFltPortOsSetActive(PVBOXNETFLTINS pThis, bool fActive)
{
ifnet_t pIfNet = vboxNetFltDarwinRetainIfNet(pThis);
if (pIfNet)
{
if (pThis->fDisablePromiscuous)
{
/*
* Promiscuous mode should not be used (wireless), we just need to
* make sure the interface is up.
*/
if (fActive)
{
u_int16_t fIf = ifnet_flags(pIfNet);
if ((fIf & (IFF_UP | IFF_RUNNING)) != (IFF_UP | IFF_RUNNING))
{
ifnet_set_flags(pIfNet, IFF_UP, IFF_UP);
ifnet_ioctl(pIfNet, 0, SIOCSIFFLAGS, NULL);
}
}
}
else
{
/*
* This api is a bit weird, the best reference is the code.
*
* Also, we have a bit or race conditions wrt the maintenance of
* host the interface promiscuity for vboxNetFltPortOsIsPromiscuous.
*/
unsigned const cPromiscBefore = VBOX_GET_PCOUNT(pIfNet);
u_int16_t fIf;
if (fActive)
{
Assert(!pThis->u.s.fSetPromiscuous);
errno_t err = ENETDOWN;
ASMAtomicWriteBool(&pThis->u.s.fNeedSetPromiscuous, true);
/*
* Try bring the interface up and running if it's down.
*/
fIf = ifnet_flags(pIfNet);
if ((fIf & (IFF_UP | IFF_RUNNING)) != (IFF_UP | IFF_RUNNING))
{
err = ifnet_set_flags(pIfNet, IFF_UP, IFF_UP);
errno_t err2 = ifnet_ioctl(pIfNet, 0, SIOCSIFFLAGS, NULL);
if (!err)
err = err2;
fIf = ifnet_flags(pIfNet);
}
/*
* Is it already up? If it isn't, leave it to the link event or
* we'll upset if_pcount (as stated above, ifnet_set_promiscuous is weird).
*/
if ((fIf & (IFF_UP | IFF_RUNNING)) == (IFF_UP | IFF_RUNNING))
{
err = ifnet_set_promiscuous(pIfNet, 1);
pThis->u.s.fSetPromiscuous = err == 0;
if (!err)
{
ASMAtomicWriteBool(&pThis->u.s.fNeedSetPromiscuous, false);
/* check if it actually worked, this stuff is not always behaving well. */
if (!(ifnet_flags(pIfNet) & IFF_PROMISC))
{
err = ifnet_set_flags(pIfNet, IFF_PROMISC, IFF_PROMISC);
if (!err)
err = ifnet_ioctl(pIfNet, 0, SIOCSIFFLAGS, NULL);
if (!err)
Log(("vboxNetFlt: fixed IFF_PROMISC on %s (%d->%d)\n", pThis->szName, cPromiscBefore, VBOX_GET_PCOUNT(pIfNet)));
else
Log(("VBoxNetFlt: failed to fix IFF_PROMISC on %s, err=%d (%d->%d)\n",
pThis->szName, err, cPromiscBefore, VBOX_GET_PCOUNT(pIfNet)));
}
}
else
Log(("VBoxNetFlt: ifnet_set_promiscuous -> err=%d grr! (%d->%d)\n", err, cPromiscBefore, VBOX_GET_PCOUNT(pIfNet)));
}
else if (!err)
Log(("VBoxNetFlt: Waiting for the link to come up... (%d->%d)\n", cPromiscBefore, VBOX_GET_PCOUNT(pIfNet)));
if (err)
LogRel(("VBoxNetFlt: Failed to put '%s' into promiscuous mode, err=%d (%d->%d)\n", pThis->szName, err, cPromiscBefore, VBOX_GET_PCOUNT(pIfNet)));
}
else
{
ASMAtomicWriteBool(&pThis->u.s.fNeedSetPromiscuous, false);
if (pThis->u.s.fSetPromiscuous)
{
errno_t err = ifnet_set_promiscuous(pIfNet, 0);
AssertMsg(!err, ("%d\n", err)); NOREF(err);
}
pThis->u.s.fSetPromiscuous = false;
fIf = ifnet_flags(pIfNet);
Log(("VBoxNetFlt: fIf=%#x; %d->%d\n", fIf, cPromiscBefore, VBOX_GET_PCOUNT(pIfNet)));
}
}
vboxNetFltDarwinReleaseIfNet(pThis, pIfNet);
}
}
/* ARGSUSED */
int
bpfioctl(dev_t dev, u_long cmd, caddr_t addr, __unused int flags,
struct proc *p)
{
struct bpf_d *d;
int error = 0;
lck_mtx_lock(bpf_mlock);
d = bpf_dtab[minor(dev)];
if (d == 0 || d == (void *)1) {
lck_mtx_unlock(bpf_mlock);
return (ENXIO);
}
switch (cmd) {
default:
error = EINVAL;
break;
/*
* Check for read packet available.
*/
case FIONREAD:
{
int n;
n = d->bd_slen;
if (d->bd_hbuf)
n += d->bd_hlen;
*(int *)addr = n;
break;
}
case SIOCGIFADDR:
{
struct ifnet *ifp;
if (d->bd_bif == 0)
error = EINVAL;
else {
ifp = d->bd_bif->bif_ifp;
error = ifnet_ioctl(ifp, 0, cmd, addr);
}
break;
}
/*
* Get buffer len [for read()].
*/
case BIOCGBLEN:
*(u_int *)addr = d->bd_bufsize;
break;
/*
* Set buffer length.
*/
case BIOCSBLEN:
#if BSD < 199103
error = EINVAL;
#else
if (d->bd_bif != 0)
error = EINVAL;
else {
u_int size = *(u_int *)addr;
if (size > bpf_maxbufsize)
*(u_int *)addr = size = bpf_maxbufsize;
else if (size < BPF_MINBUFSIZE)
*(u_int *)addr = size = BPF_MINBUFSIZE;
d->bd_bufsize = size;
}
#endif
break;
/*
* Set link layer read filter.
*/
case BIOCSETF32: {
struct bpf_program32 *prg32 = (struct bpf_program32 *)addr;
error = bpf_setf(d, prg32->bf_len,
CAST_USER_ADDR_T(prg32->bf_insns));
break;
}
case BIOCSETF64: {
struct bpf_program64 *prg64 = (struct bpf_program64 *)addr;
error = bpf_setf(d, prg64->bf_len, prg64->bf_insns);
break;
}
/*
* Flush read packet buffer.
*/
case BIOCFLUSH:
reset_d(d);
break;
/*
* Put interface into promiscuous mode.
*/
case BIOCPROMISC:
if (d->bd_bif == 0) {
/*
* No interface attached yet.
*/
error = EINVAL;
break;
}
if (d->bd_promisc == 0) {
lck_mtx_unlock(bpf_mlock);
error = ifnet_set_promiscuous(d->bd_bif->bif_ifp, 1);
lck_mtx_lock(bpf_mlock);
if (error == 0)
d->bd_promisc = 1;
}
break;
/*
* Get device parameters.
*/
case BIOCGDLT:
if (d->bd_bif == 0)
error = EINVAL;
else
*(u_int *)addr = d->bd_bif->bif_dlt;
break;
/*
* Get a list of supported data link types.
*/
case BIOCGDLTLIST:
if (d->bd_bif == NULL) {
error = EINVAL;
} else {
error = bpf_getdltlist(d,
(struct bpf_dltlist *)addr, p);
}
break;
/*
* Set data link type.
*/
case BIOCSDLT:
if (d->bd_bif == NULL)
error = EINVAL;
else
error = bpf_setdlt(d, *(u_int *)addr);
break;
/*
* Get interface name.
*/
case BIOCGETIF:
if (d->bd_bif == 0)
error = EINVAL;
else {
struct ifnet *const ifp = d->bd_bif->bif_ifp;
struct ifreq *const ifr = (struct ifreq *)addr;
snprintf(ifr->ifr_name, sizeof(ifr->ifr_name),
"%s%d", ifp->if_name, ifp->if_unit);
}
break;
/*
* Set interface.
*/
case BIOCSETIF: {
ifnet_t ifp;
ifp = ifunit(((struct ifreq *)addr)->ifr_name);
if (ifp == NULL)
error = ENXIO;
else
error = bpf_setif(d, ifp, 0);
break;
}
/*
* Set read timeout.
*/
case BIOCSRTIMEOUT:
{
struct BPF_TIMEVAL *_tv = (struct BPF_TIMEVAL *)addr;
struct timeval tv;
tv.tv_sec = _tv->tv_sec;
tv.tv_usec = _tv->tv_usec;
/*
* Subtract 1 tick from tvtohz() since this isn't
* a one-shot timer.
*/
if ((error = itimerfix(&tv)) == 0)
d->bd_rtout = tvtohz(&tv) - 1;
break;
}
/*
* Get read timeout.
*/
case BIOCGRTIMEOUT:
{
struct BPF_TIMEVAL *tv = (struct BPF_TIMEVAL *)addr;
tv->tv_sec = d->bd_rtout / hz;
tv->tv_usec = (d->bd_rtout % hz) * tick;
break;
}
/*
* Get packet stats.
*/
case BIOCGSTATS:
{
struct bpf_stat *bs = (struct bpf_stat *)addr;
bs->bs_recv = d->bd_rcount;
bs->bs_drop = d->bd_dcount;
break;
}
/*
* Set immediate mode.
*/
case BIOCIMMEDIATE:
d->bd_immediate = *(u_int *)addr;
break;
case BIOCVERSION:
{
struct bpf_version *bv = (struct bpf_version *)addr;
bv->bv_major = BPF_MAJOR_VERSION;
bv->bv_minor = BPF_MINOR_VERSION;
break;
}
/*
* Get "header already complete" flag
*/
case BIOCGHDRCMPLT:
*(u_int *)addr = d->bd_hdrcmplt;
break;
/*
* Set "header already complete" flag
*/
case BIOCSHDRCMPLT:
d->bd_hdrcmplt = *(u_int *)addr ? 1 : 0;
break;
/*
* Get "see sent packets" flag
*/
case BIOCGSEESENT:
*(u_int *)addr = d->bd_seesent;
break;
/*
* Set "see sent packets" flag
*/
case BIOCSSEESENT:
d->bd_seesent = *(u_int *)addr;
break;
case FIONBIO: /* Non-blocking I/O */
break;
case FIOASYNC: /* Send signal on receive packets */
d->bd_async = *(int *)addr;
break;
#ifndef __APPLE__
case FIOSETOWN:
error = fsetown(*(int *)addr, &d->bd_sigio);
break;
case FIOGETOWN:
*(int *)addr = fgetown(d->bd_sigio);
break;
/* This is deprecated, FIOSETOWN should be used instead. */
case TIOCSPGRP:
error = fsetown(-(*(int *)addr), &d->bd_sigio);
break;
/* This is deprecated, FIOGETOWN should be used instead. */
case TIOCGPGRP:
*(int *)addr = -fgetown(d->bd_sigio);
break;
#endif
case BIOCSRSIG: /* Set receive signal */
{
u_int sig;
sig = *(u_int *)addr;
if (sig >= NSIG)
error = EINVAL;
else
d->bd_sig = sig;
break;
}
case BIOCGRSIG:
*(u_int *)addr = d->bd_sig;
break;
}
lck_mtx_unlock(bpf_mlock);
return (error);
}
