HS 2.0: Maintain a copy of HS 2.0 Indication from Association Request

This allows the AP to figure out whether a station is a HS 2.0 STA
during the association and access any information that the STA may have
included in this element.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

src/ap/drv_callbacks.c

@@ -109,6 +109,15 @@ int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
 	}
 #endif /* CONFIG_P2P */
 
+#ifdef CONFIG_HS20
+	wpabuf_free(sta->hs20_ie);
+	if (elems.hs20 && elems.hs20_len > 4) {
+		sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
+						 elems.hs20_len - 4);
+	} else
+		sta->hs20_ie = NULL;
+#endif /* CONFIG_HS20 */
+
 	if (hapd->conf->wpa) {
 		if (ie == NULL || ielen == 0) {
 #ifdef CONFIG_WPS

src/ap/ieee802_11.c

@@ -962,6 +962,15 @@ static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta,
 	p2p_group_notif_assoc(hapd->p2p_group, sta->addr, ies, ies_len);
 #endif /* CONFIG_P2P */
 
+#ifdef CONFIG_HS20
+	wpabuf_free(sta->hs20_ie);
+	if (elems.hs20 && elems.hs20_len > 4) {
+		sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
+						 elems.hs20_len - 4);
+	} else
+		sta->hs20_ie = NULL;
+#endif /* CONFIG_HS20 */
+
 	return WLAN_STATUS_SUCCESS;
 }
 

src/ap/sta_info.c

@@ -232,6 +232,7 @@ void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
 
 	wpabuf_free(sta->wps_ie);
 	wpabuf_free(sta->p2p_ie);
+	wpabuf_free(sta->hs20_ie);
 
 	os_free(sta->ht_capabilities);
 	os_free(sta->psk);

src/ap/sta_info.h

@@ -121,6 +121,7 @@ struct sta_info {
 
 	struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
 	struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */
+	struct wpabuf *hs20_ie; /* HS 2.0 IE from (Re)Association Request */
 
 	struct os_time connected_time;