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OCV: Perform an SA Query after a channel switch

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After the network changed to a new channel, perform an SA Query with the
AP after a random delay if OCV was negotiated for the association. This
is used to confirm that we are still operating on the real operating
channel of the network. This commit is adding only the station side
functionality for this, i.e., the AP behavior is not changed to
disconnect stations with OCV that do not go through SA Query.

Signed-off-by: Mathy Vanhoef <Mathy.Vanhoef@cs.kuleuven.be>
This commit is contained in:
Mathy Vanhoef 2018-08-06 15:46:35 -04:00 • committed by Jouni Malinen
parent f9da7505bf
commit f91e68e903
4 changed files with 31 additions and 0 deletions
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2
src/ap/drv_callbacks.c
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@ -739,6 +739,8 @@ void hostapd_event_sta_opmode_changed(struct hostapd_data *hapd, const u8 *addr,
void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
int offset, int width, int cf1, int cf2)
{
/* TODO: If OCV is enabled deauth STAs that don't perform a SA Query */
#ifdef NEED_AP_MLME
int channel, chwidth, is_dfs;
u8 seg0_idx = 0, seg1_idx = 0;