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Code Issues Releases Activity

Fix regression in ndis(4) after r286410. This adds a bunch of checks for

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whether this is a Ethernet or 802.11 device and does proper dereferencing.

PR:		213237
Submitted by:	<ota j.email.ne.jp>
MFC after:	2 weeks
This commit is contained in:
Gleb Smirnoff 2017-05-22 20:00:01 +00:00
parent 9f4ec0869b
commit 33c6ba0c65
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=318677
4 changed files with 65 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
sys/compat/ndis/kern_ndis.c
View File

@ -210,8 +210,8 @@ ndis_status_func(adapter, status, sbuf, slen)
block = adapter;
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
ifp = sc->ifp;
if (ifp->if_flags & IFF_DEBUG)
ifp = NDISUSB_GET_IFNET(sc);
if ( ifp && ifp->if_flags & IFF_DEBUG)
device_printf(sc->ndis_dev, "status: %x\n", status);
}
@ -225,8 +225,8 @@ ndis_statusdone_func(adapter)
block = adapter;
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
ifp = sc->ifp;
if (ifp->if_flags & IFF_DEBUG)
ifp = NDISUSB_GET_IFNET(sc);
if (ifp && ifp->if_flags & IFF_DEBUG)
device_printf(sc->ndis_dev, "status complete\n");
}
@ -264,9 +264,9 @@ ndis_resetdone_func(ndis_handle adapter, ndis_status status,
block = adapter;
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
ifp = sc->ifp;
ifp = NDISUSB_GET_IFNET(sc);
if (ifp->if_flags & IFF_DEBUG)
if (ifp && ifp->if_flags & IFF_DEBUG)
device_printf(sc->ndis_dev, "reset done...\n");
KeSetEvent(&block->nmb_resetevent, IO_NO_INCREMENT, FALSE);
}
@ -285,6 +285,9 @@ ndis_create_sysctls(arg)
return (EINVAL);
sc = arg;
/*
device_printf(sc->ndis_dev, "ndis_create_sysctls() sc=%p\n", sc);
*/
vals = sc->ndis_regvals;
TAILQ_INIT(&sc->ndis_cfglist_head);
@ -698,8 +701,8 @@ ndis_ptom(m0, p)
*/
eh = mtod((*m0), struct ether_header *);
ifp = ((struct ndis_softc *)p->np_softc)->ifp;
if (totlen > ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE)) {
ifp = NDISUSB_GET_IFNET((struct ndis_softc *)p->np_softc);
if (ifp && totlen > ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE)) {
diff = totlen - ETHER_MAX_FRAME(ifp, eh->ether_type, FALSE);
totlen -= diff;
m->m_len -= diff;

11
sys/compat/ndis/subr_ndis.c
View File

@ -626,6 +626,9 @@ NdisReadConfiguration(status, parm, cfg, key, type)
block = (ndis_miniport_block *)cfg;
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
/*
device_printf(sc->ndis_dev, "NdisReadConfiguration sc=%p\n", sc);
*/
if (key->us_len == 0 || key->us_buf == NULL) {
*status = NDIS_STATUS_FAILURE;
@ -984,7 +987,7 @@ NdisWriteErrorLogEntry(ndis_handle adapter, ndis_error_code code,
dev = block->nmb_physdeviceobj->do_devext;
drv = block->nmb_deviceobj->do_drvobj;
sc = device_get_softc(dev);
ifp = sc->ifp;
ifp = NDISUSB_GET_IFNET(sc);
if (ifp != NULL && ifp->if_flags & IFF_DEBUG) {
error = pe_get_message((vm_offset_t)drv->dro_driverstart,
@ -1304,17 +1307,19 @@ NdisReadNetworkAddress(status, addr, addrlen, adapter)
ndis_handle adapter;
{
struct ndis_softc *sc;
struct ifnet *ifp;
ndis_miniport_block *block;
uint8_t empty[] = { 0, 0, 0, 0, 0, 0 };
block = (ndis_miniport_block *)adapter;
sc = device_get_softc(block->nmb_physdeviceobj->do_devext);
if (sc->ifp == NULL) {
ifp = NDISUSB_GET_IFNET(sc);
if (ifp == NULL) {
*status = NDIS_STATUS_FAILURE;
return;
}
if (sc->ifp->if_addr == NULL ||
if (ifp->if_addr == NULL ||
bcmp(IF_LLADDR(sc->ifp), empty, ETHER_ADDR_LEN) == 0)
*status = NDIS_STATUS_FAILURE;
else {

81
sys/dev/if_ndis/if_ndis.c
View File

@ -147,7 +147,7 @@ static funcptr ndis_rxeof_xfr_done_wrap;
static funcptr ndis_linksts_wrap;
static funcptr ndis_linksts_done_wrap;
static funcptr ndis_ticktask_wrap;
static funcptr ndis_starttask_wrap;
static funcptr ndis_ifstarttask_wrap;
static funcptr ndis_resettask_wrap;
static funcptr ndis_inputtask_wrap;
@ -162,11 +162,11 @@ static int ndis_raw_xmit (struct ieee80211_node *, struct mbuf *,
const struct ieee80211_bpf_params *);
static void ndis_update_mcast (struct ieee80211com *);
static void ndis_update_promisc (struct ieee80211com *);
static void ndis_start (struct ifnet *);
static void ndis_starttask (device_object *, void *);
static void ndis_ifstart (struct ifnet *);
static void ndis_ifstarttask (device_object *, void *);
static void ndis_resettask (device_object *, void *);
static void ndis_inputtask (device_object *, void *);
static int ndis_ioctl (struct ifnet *, u_long, caddr_t);
static int ndis_ifioctl (struct ifnet *, u_long, caddr_t);
static int ndis_newstate (struct ieee80211vap *, enum ieee80211_state,
int);
static int ndis_nettype_chan (uint32_t);
@ -246,7 +246,7 @@ ndisdrv_modevent(mod, cmd, arg)
&ndis_linksts_done_wrap, 1, WINDRV_WRAP_STDCALL);
windrv_wrap((funcptr)ndis_ticktask, &ndis_ticktask_wrap,
2, WINDRV_WRAP_STDCALL);
windrv_wrap((funcptr)ndis_starttask, &ndis_starttask_wrap,
windrv_wrap((funcptr)ndis_ifstarttask, &ndis_ifstarttask_wrap,
2, WINDRV_WRAP_STDCALL);
windrv_wrap((funcptr)ndis_resettask, &ndis_resettask_wrap,
2, WINDRV_WRAP_STDCALL);
@ -268,7 +268,7 @@ ndisdrv_modevent(mod, cmd, arg)
windrv_unwrap(ndis_linksts_wrap);
windrv_unwrap(ndis_linksts_done_wrap);
windrv_unwrap(ndis_ticktask_wrap);
windrv_unwrap(ndis_starttask_wrap);
windrv_unwrap(ndis_ifstarttask_wrap);
windrv_unwrap(ndis_resettask_wrap);
windrv_unwrap(ndis_inputtask_wrap);
break;
@ -292,11 +292,14 @@ ndis_setmulti(sc)
int len, mclistsz, error;
uint8_t *mclist;
ifp = sc->ifp;
if (!NDIS_INITIALIZED(sc))
return;
if (sc->ndis_80211)
return;
ifp = sc->ifp;
if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
sc->ndis_filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
len = sizeof(sc->ndis_filter);
@ -368,13 +371,14 @@ ndis_set_offload(sc)
struct ifnet *ifp;
int len, error;
ifp = sc->ifp;
if (!NDIS_INITIALIZED(sc))
return (EINVAL);
if (sc->ndis_80211)
return (EINVAL);
/* See if there's anything to set. */
ifp = sc->ifp;
error = ndis_probe_offload(sc);
if (error)
return (error);
@ -965,8 +969,8 @@ ndis_ifattach(struct ndis_softc *sc)
if_initname(ifp, device_get_name(sc->ndis_dev),
device_get_unit(sc->ndis_dev));
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = ndis_ioctl;
ifp->if_start = ndis_start;
ifp->if_ioctl = ndis_ifioctl;
ifp->if_start = ndis_ifstart;
ifp->if_init = ndis_init;
ifp->if_baudrate = 10000000;
IFQ_SET_MAXLEN(&ifp->if_snd, 50);
@ -1560,19 +1564,23 @@ ndis_txeof(adapter, packet, status)
sc->ndis_txarray[idx] = NULL;
sc->ndis_txpending++;
if (status == NDIS_STATUS_SUCCESS)
if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
else
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
if (!sc->ndis_80211) {
struct ifnet *ifp = sc->ifp;
if (status == NDIS_STATUS_SUCCESS)
if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
else
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
}
sc->ndis_tx_timer = 0;
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
NDIS_UNLOCK(sc);
IoQueueWorkItem(sc->ndis_startitem,
(io_workitem_func)ndis_starttask_wrap,
WORKQUEUE_CRITICAL, ifp);
if (!sc->ndis_80211)
IoQueueWorkItem(sc->ndis_startitem,
(io_workitem_func)ndis_ifstarttask_wrap,
WORKQUEUE_CRITICAL, sc);
DPRINTF(("%s: ndis_ifstarttask_wrap sc=%p\n", __func__, sc));
}
static void
@ -1635,9 +1643,10 @@ ndis_linksts_done(adapter)
IoQueueWorkItem(sc->ndis_tickitem,
(io_workitem_func)ndis_ticktask_wrap,
WORKQUEUE_CRITICAL, sc);
IoQueueWorkItem(sc->ndis_startitem,
(io_workitem_func)ndis_starttask_wrap,
WORKQUEUE_CRITICAL, ifp);
if (!sc->ndis_80211)
IoQueueWorkItem(sc->ndis_startitem,
(io_workitem_func)ndis_ifstarttask_wrap,
WORKQUEUE_CRITICAL, sc);
break;
case NDIS_STATUS_MEDIA_DISCONNECT:
if (sc->ndis_link)
@ -1672,9 +1681,10 @@ ndis_tick(xsc)
IoQueueWorkItem(sc->ndis_resetitem,
(io_workitem_func)ndis_resettask_wrap,
WORKQUEUE_CRITICAL, sc);
IoQueueWorkItem(sc->ndis_startitem,
(io_workitem_func)ndis_starttask_wrap,
WORKQUEUE_CRITICAL, sc->ifp);
if (!sc->ndis_80211)
IoQueueWorkItem(sc->ndis_startitem,
(io_workitem_func)ndis_ifstarttask_wrap,
WORKQUEUE_CRITICAL, sc);
}
callout_reset(&sc->ndis_stat_callout, hz, ndis_tick, sc);
@ -1796,16 +1806,16 @@ ndis_update_promisc(struct ieee80211com *ic)
}
static void
ndis_starttask(d, arg)
device_object *d;
void *arg;
ndis_ifstarttask(device_object *d, void *arg)
{
struct ifnet *ifp;
ifp = arg;
struct ndis_softc *sc = arg;
DPRINTF(("%s: sc=%p, ifp=%p\n", __func__, sc, sc->ifp));
if (sc->ndis_80211)
return;
struct ifnet *ifp = sc->ifp;
if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
ndis_start(ifp);
ndis_ifstart(ifp);
}
/*
@ -1821,8 +1831,7 @@ ndis_starttask(d, arg)
* will do the mapping themselves on a buffer by buffer basis.
*/
static void
ndis_start(ifp)
struct ifnet *ifp;
ndis_ifstart(struct ifnet *ifp)
{
struct ndis_softc *sc;
struct mbuf *m = NULL;
@ -2880,7 +2889,7 @@ ndis_getstate_80211(struct ndis_softc *sc)
}
static int
ndis_ioctl(ifp, command, data)
ndis_ifioctl(ifp, command, data)
struct ifnet *ifp;
u_long command;
caddr_t data;

1
sys/dev/if_ndis/if_ndisvar.h
View File

@ -152,6 +152,7 @@ struct ndisusb_task {
};
struct ndis_softc {
#define NDISUSB_GET_IFNET(ndis_softc) ( (ndis_softc)->ndis_80211 ? NULL : (ndis_softc)->ifp )
u_int ndis_80211:1,
ndis_link:1,
ndis_running:1;