+static void mlme_event_deauth_disassoc(struct wpa_driver_nl80211_data *drv,
+ enum wpa_event_type type,
+ const u8 *frame, size_t len)
+{
+ const struct ieee80211_mgmt *mgmt;
+ union wpa_event_data event;
+ const u8 *bssid = NULL;
+ u16 reason_code = 0;
+
+ mgmt = (const struct ieee80211_mgmt *) frame;
+ if (len >= 24) {
+ bssid = mgmt->bssid;
+
+ if (drv->associated != 0 &&
+ os_memcmp(bssid, drv->bssid, ETH_ALEN) != 0 &&
+ os_memcmp(bssid, drv->auth_bssid, ETH_ALEN) != 0) {
+ /*
+ * We have presumably received this deauth as a
+ * response to a clear_state_mismatch() outgoing
+ * deauth. Don't let it take us offline!
+ */
+ wpa_printf(MSG_DEBUG, "nl80211: Deauth received "
+ "from Unknown BSSID " MACSTR " -- ignoring",
+ MAC2STR(bssid));
+ return;
+ }
+ }
+
+ drv->associated = 0;
+ os_memset(&event, 0, sizeof(event));
+
+ /* Note: Same offset for Reason Code in both frame subtypes */
+ if (len >= 24 + sizeof(mgmt->u.deauth))
+ reason_code = le_to_host16(mgmt->u.deauth.reason_code);
+
+ if (type == EVENT_DISASSOC) {
+ event.disassoc_info.addr = bssid;
+ event.disassoc_info.reason_code = reason_code;
+ if (frame + len > mgmt->u.disassoc.variable) {
+ event.disassoc_info.ie = mgmt->u.disassoc.variable;
+ event.disassoc_info.ie_len = frame + len -
+ mgmt->u.disassoc.variable;
+ }
+ } else {
+ event.deauth_info.addr = bssid;
+ event.deauth_info.reason_code = reason_code;
+ if (frame + len > mgmt->u.deauth.variable) {
+ event.deauth_info.ie = mgmt->u.deauth.variable;
+ event.deauth_info.ie_len = frame + len -
+ mgmt->u.deauth.variable;
+ }
+ }
+
+ wpa_supplicant_event(drv->ctx, type, &event);
+}
+
+