- wireless AP enumerate problem on vista
- Posted by Liu Lu on October 16th, 2006
I need to get all APs in Vista. In XP, I can query the OID_802_11_BSSID_LIST
and get all available network list. But in Vista, the query always return
error "a device attached to system is not functioning". I have tried the
OIDScope tool. It also returns the same error code. Do I miss something
here? Or is there another way to scan and get all APs in Vista? I also tried
Native WIFI API. But it can only return one valid AP and all other data
returned are invalid.
- Posted by Pavel A. on October 16th, 2006
"Liu Lu" wrote:
It seems like the native wi-fi drivers do not support OID_802_11_xxx,
and the Microsoft layer does not emulate these as well.
Try to give a bigger buffer to WlanGetAvailableNetworkList
or WlanGetNetworkBssList.
Probably you call it with room for just one element.
Regards,
--PA
- Posted by Thomas F. Divine on October 16th, 2006
Native Wi-Fi adapters on Vista do not respond to the OID_802_11_XYZ family
of OIDs. Instead, they use the OID_DOT11_XYZ family.
Going further, the OID to fetch the BSSID lists uses a new NDIS request
feature called "method". (See the NDIS_IOD_REQUEST structure). This passes
information _to_ the miniport _and_ fetches information _from_ the miniport
in one operation. This new methos cannot be exercised using OIDScope.
Good luck,
Thomas F. Divine, Windows DDK MVP
http://www.pcausa.com
<DIV>"Pavel A." <pavel_a@NOwritemeNO.com> wrote in message
news:32E6C065-4F82-4A40-809E-6A418A9FAC4D@microsoft.com...</DIV>> "Liu Lu"
wrote:
- Posted by Pavel A. on October 17th, 2006
"Thomas F. Divine" <tdivine@NOpcausaSPAM.com> wrote in message news:%23vnzclV8GHA.4288@TK2MSFTNGP02.phx.gbl...
Thomas,
Does this mean that XP and Vista will not have common wireless OIDs,
instead the apps should use the new Wlan API ?
How about WMI and scripting - will there be any common WMI
objects? Have you seen scripting samples for Vista that demonstrate
the DOT11 objects?
Thanks,
Pavel
- Posted by Thomas F. Divine on October 17th, 2006
<DIV>"Pavel A." <pavel_a@NOwritemeNO.com> wrote in message
news:ulATVLZ8GHA.3760@TK2MSFTNGP02.phx.gbl...</DIV>> "Thomas F. Divine"
<tdivine@NOpcausaSPAM.com> wrote in message
news:%23vnzclV8GHA.4288@TK2MSFTNGP02.phx.gbl...
Pavel,
I haven't looked at the new user-mode APIs. I have no clue whether they work
transparently on NDIS 5 802.11 adapter miniports and new NDIS 6 native-wi-fi
adapter miniports. My guess is that they would have to work seamlessly on
both or they have botched something.
If you haven't seen it already, I have an experimental tool that can be used
to monitor OID transactions both above and below the system 802.11 "LAN
emulation" driver. See:
http://www.pcausa.com/Utilities/PCAGizmo/PCAGizmo.htm
Thos
