wifi: mac80211: Guard FILS discovery and unsolicited broadcast probe response

According to IEEE Std 802.11-2024, subclause 11.45.2.1 FILS Discovery
frame transmission, only a transmitting BSS shall transmit a FILS
Discovery frame. Currently, BSS_CHANGED_FILS_DISCOVERY is set
unconditionally for all the BSSs. Hence, add a check to allow setting
the FILS Discovery flag only for a transmitting BSS.

Similarly, IEEE Std 802.11-2024, subclause 26.17.2.3.2 AP behavior for
fast passive scanning, mentions that unsolicited broadcast probe
response frame shall be transmitted only by a transmitting BSS. Hence,
add a check to allow setting the BSS_CHANGED_UNSOL_BCAST_PROBE_RESP only
for a transmitting BSS.

Currently in user-space there is no restriction on sending this for
non-transmitting BSS, thus it may send these for those BSSs as well.
While this is not a valid configuration, returning an error here could
be fatal because failing 'start_ap' or 'update_ap' operation would result
in failure of bringing up those BSSs. Thus, to maintain the compatibility
with existing user-space, ignore the config for non-transmitting BSS silently.

Signed-off-by: Manish Dharanenthiran <manish.dharanenthiran@oss.qualcomm.com>
Link: https://patch.msgid.link/20261001-fils-v3-1-55c5628f9d1d@oss.qualcomm.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

0 files changed, 0 insertions, 0 deletions