- /* check settings validity */
- if (!settings->beacon_csa.tail ||
- ((settings->beacon_csa.tail_len <=
- settings->counter_offset_beacon) ||
- (settings->beacon_csa.tail[settings->counter_offset_beacon] !=
- settings->cs_count)))
+ /*
+ * Remove empty counters, assuming Probe Response and Beacon frame
+ * counters match. This implementation assumes that there are only two
+ * counters.
+ */
+ if (settings->counter_offset_beacon[0] &&
+ !settings->counter_offset_beacon[1]) {
+ csa_off_len = 1;
+ } else if (settings->counter_offset_beacon[1] &&
+ !settings->counter_offset_beacon[0]) {
+ csa_off_len = 1;
+ settings->counter_offset_beacon[0] =
+ settings->counter_offset_beacon[1];
+ settings->counter_offset_presp[0] =
+ settings->counter_offset_presp[1];
+ } else if (settings->counter_offset_beacon[1] &&
+ settings->counter_offset_beacon[0]) {
+ csa_off_len = 2;
+ } else {
+ wpa_printf(MSG_ERROR, "nl80211: No CSA counters provided");