Extensible Access Point Operation Mode

In the Extensible Access Point (ExtAP) operation mode, the 802.11 station operates as a wireless LAN (WLAN) access point. The ExtAP operation mode is available beginning with NDIS 6.20 in Windows 7. The ExtAP mode is optional. To take advantage of this mode, you must compile or recompile an 802.11 miniport driver with the NTDDI_VERSION macro set to >= NTDDI_WIN7.

Note that a NIC must always support the Extensible Station Operation Mode.

A miniport driver enters the ExtAP mode when it receives an OID_DOT11_CURRENT_OPERATION_MODE request with the uCurrentOpMode member of DOT11_CURRENT_OPERATION_MODE set to DOT11_OPERATION_MODE_EXTENSIBLE_AP. When the driver enters ExtAP mode, the NIC must disable any background scanning that it has implemented.

The 802.11 miniport driver completes a DOT11_EXTAP_ATTRIBUTES structure to report the attributes of the driver and 802.11 station in the ExtAP mode. These attributes are reported through the ExtAPAttributes member of the NDIS_MINIPORT_ADAPTER_NATIVE_802_11_ATTRIBUTES structure.

To operate in ExtAP mode, the miniport driver must do the following:

ExtAP OIDs

The following OIDs and their associated structures support the ExtAP operation mode.

Object identifier (OID) Associated structure

OID_DOT11_ADDITIONAL_IE

DOT11_ADDITIONAL_IE

OID_DOT11_AVAILABLE_CHANNEL_LIST

DOT11_AVAILABLE_CHANNEL_LIST

OID_DOT11_AVAILABLE_FREQUENCY_LIST

DOT11_AVAILABLE_FREQUENCY_LIST

OID_DOT11_DISASSOCIATE_PEER_REQUEST

DOT11_DISASSOCIATE_PEER_REQUEST

OID_DOT11_ENUM_PEER_INFO

DOT11_PEER_INFO_LIST

OID_DOT11_INCOMING_ASSOCIATION_DECISION

DOT11_INCOMING_ASSOC_DECISION

OID_DOT11_START_AP_REQUEST

(none)

OID_DOT11_WPS_ENABLED

(none)

 

For more information, see Native 802.11 Extensible AP OIDs.

ExtAP Status Indications

The following NDIS status indications and their associated structures support the ExtAP operation mode.

NDIS status indication Associated structure

NDIS_STATUS_DOT11_CAN_SUSTAIN_AP

DOT11_CAN_SUSTAIN_AP_PARAMETERS

NDIS_STATUS_DOT11_INCOMING_ASSOC_COMPLETION

DOT11_INCOMING_ASSOC_COMPLETION_PARAMETERS

NDIS_STATUS_DOT11_INCOMING_ASSOC_REQUEST_RECEIVED

DOT11_INCOMING_ASSOC_REQUEST_RECEIVED_PARAMETERS

NDIS_STATUS_DOT11_INCOMING_ASSOC_STARTED

DOT11_INCOMING_ASSOC_STARTED_PARAMETERS

NDIS_STATUS_DOT11_PHY_FREQUENCY_ADOPTED

DOT11_PHY_FREQUENCY_ADOPTED_PARAMETERS

NDIS_STATUS_DOT11_STOP_AP

DOT11_STOP_AP_PARAMETERS

 

For more information, see Native 802.11 Extensible AP Status Indications.

 

 

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