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P2P: Remove P2P group on driver resource becoming unavailable

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Add a new driver event, EVENT_INTERFACE_UNAVAILABLE, for indicating
that the driver is not able to continue operating the virtual
interface in its current mode anymore, e.g., due to operating
channel for GO interface forced to a DFS channel by another virtual
interface.

When this happens for a P2P group interface, the P2P group will
be terminated and P2P-GROUP-REMOVED event shows the reason for
this as follows:
P2P-GROUP-REMOVED wlan0 GO reason=UNAVAILABLE
This commit is contained in:
Jouni Malinen 2010-10-25 19:16:11 +03:00 • committed by Jouni Malinen
parent 129eb428b1
commit c973f3868a
5 changed files with 38 additions and 2 deletions
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16
src/drivers/driver.h
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@ -2212,7 +2212,21 @@ enum wpa_event_type {
* e.g., because of a regulatory domain change triggered by scan
* results including an AP advertising a country code.
*/
EVENT_CHANNEL_LIST_CHANGED
EVENT_CHANNEL_LIST_CHANGED,
/**
* EVENT_INTERFACE_UNAVAILABLE - Notify that interface is unavailable
*
* This event is used to indicate that the driver cannot maintain this
* interface in its operation mode anymore. The most likely use for
* this is to indicate that AP mode operation is not available due to
* operating channel would need to be changed to a DFS channel when
* the driver does not support radar detection and another virtual
* interfaces caused the operating channel to change. Other similar
* resource conflicts could also trigger this for station mode
* interfaces.
*/
EVENT_INTERFACE_UNAVAILABLE
};