GAS: End remain-on-channel due to delayed GAS comeback request

During the sequence of exchanging GAS frames with the AP, the AP can
request to come back in X amount of time and resend the GAS request.

Previously, wpa_supplicant did not terminate the remain-on-channel
session, but rather waited until the requested comeback delay had
expired, and then tried to send the GAS frame (potentially to save the
time that is required to schedule a new remain on channel flow).

This might cause unnecessary idle time (can be close to 1000 ms) in
which the device might be off-channel. Ending the current
remain-on-channel session and then rescheduling makes better usage of
the time in this case.

End remain-on-channel session due to receiving a delayed GAS comeback
request from the AP.

Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com>

diff --git a/wpa_supplicant/gas_query.c b/wpa_supplicant/gas_query.c
index 10ecce7b4d3d942ad5e7a12ea85d93b4a8082960..65dec2b14d9259cf4007d49c395454964a68442e 100644 (file)
--- a/wpa_supplicant/gas_query.c
+++ b/wpa_supplicant/gas_query.c
@@ -319,6 +319,8 @@ static void gas_query_tx_comeback_req_delay(struct gas_query *gas,
 {
        unsigned int secs, usecs;
 
+       offchannel_send_action_done(gas->wpa_s);
+
        secs = (comeback_delay * 1024) / 1000000;
        usecs = comeback_delay * 1024 - secs * 1000000;
        wpa_printf(MSG_DEBUG, "GAS: Send comeback request to " MACSTR