+ /* Check if there is something to do */
+ if (hapd->conf->ssid.per_sta_vif && !sta->vlan_id) {
+ /* This sta is lacking its own vif */
+ } else if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED &&
+ !hapd->conf->ssid.per_sta_vif && sta->vlan_id) {
+ /* sta->vlan_id needs to be reset */
+ } else if (!vlan_compare(vlan_desc, sta->vlan_desc)) {
+ return 0; /* nothing to change */
+ }
+
+ /* Now the real VLAN changed or the STA just needs its own vif */
+ if (hapd->conf->ssid.per_sta_vif) {
+ /* Assign a new vif, always */
+ /* find a free vlan_id sufficiently big */
+ vlan_id = ap_sta_get_free_vlan_id(hapd);
+ /* Get wildcard VLAN */
+ for (vlan = hapd->conf->vlan; vlan; vlan = vlan->next) {
+ if (vlan->vlan_id == VLAN_ID_WILDCARD)
+ break;
+ }
+ if (!vlan) {
+ hostapd_logger(hapd, sta->addr,
+ HOSTAPD_MODULE_IEEE80211,
+ HOSTAPD_LEVEL_DEBUG,
+ "per_sta_vif missing wildcard");
+ vlan_id = 0;
+ ret = -1;
+ goto done;
+ }
+ } else if (vlan_desc && vlan_desc->notempty) {