hostapd: Add a configuration to set an AP as stationary

Add a configuration option in hostapd.conf and in neighbor report that
sets an AP as stationary. To enable this option on the current AP set
the config option stationary_ap to 1. To set a neighbor entry to be
marked as stationary add the word stat to the SET_NEIGHBOR command. This
option tells hostapd to send LCI data even if it is older than requested
by max age subelement in RRM request.

Signed-off-by: David Spinadel <david.spinadel@intel.com>

src/ap/ap_config.h

@@ -713,6 +713,7 @@ struct hostapd_config {
 
 	struct wpabuf *lci;
 	struct wpabuf *civic;
+	int stationary_ap;
 };
 
 

src/ap/hostapd.c

@@ -1645,7 +1645,7 @@ static void hostapd_set_own_neighbor_report(struct hostapd_data *hapd)
 	wpabuf_put_u8(nr, center_freq2);
 
 	hostapd_neighbor_set(hapd, hapd->own_addr, &ssid, nr, hapd->iconf->lci,
-			     hapd->iconf->civic);
+			     hapd->iconf->civic, hapd->iconf->stationary_ap);
 
 	wpabuf_free(nr);
 #endif /* NEED_AP_MLME */

src/ap/hostapd.h

@@ -109,6 +109,7 @@ struct hostapd_neighbor_entry {
 	struct wpabuf *civic;
 	/* LCI update time */
 	struct os_time lci_date;
+	int stationary;
 };
 
 /**

src/ap/neighbor_db.c

@@ -43,6 +43,7 @@ static void hostapd_neighbor_clear_entry(struct hostapd_neighbor_entry *nr)
 	nr->civic = NULL;
 	os_memset(nr->bssid, 0, sizeof(nr->bssid));
 	os_memset(&nr->ssid, 0, sizeof(nr->ssid));
+	nr->stationary = 0;
 }
 
 
@@ -64,7 +65,7 @@ hostapd_neighbor_add(struct hostapd_data *hapd)
 int hostapd_neighbor_set(struct hostapd_data *hapd, const u8 *bssid,
 			 const struct wpa_ssid_value *ssid,
 			 const struct wpabuf *nr, const struct wpabuf *lci,
-			 const struct wpabuf *civic)
+			 const struct wpabuf *civic, int stationary)
 {
 	struct hostapd_neighbor_entry *entry;
 
@@ -95,6 +96,8 @@ int hostapd_neighbor_set(struct hostapd_data *hapd, const u8 *bssid,
 			goto fail;
 	}
 
+	entry->stationary = stationary;
+
 	return 0;
 
 fail:

src/ap/neighbor_db.h

@@ -16,7 +16,7 @@ hostapd_neighbor_get(struct hostapd_data *hapd, const u8 *bssid,
 int hostapd_neighbor_set(struct hostapd_data *hapd, const u8 *bssid,
 			 const struct wpa_ssid_value *ssid,
 			 const struct wpabuf *nr, const struct wpabuf *lci,
-			 const struct wpabuf *civic);
+			 const struct wpabuf *civic, int stationary);
 int hostapd_neighbor_remove(struct hostapd_data *hapd, const u8 *bssid,
 			    const struct wpa_ssid_value *ssid);
 void hostpad_free_neighbor_db(struct hostapd_data *hapd);

src/ap/rrm.c

@@ -129,12 +129,12 @@ static int hostapd_check_lci_age(struct hostapd_neighbor_entry *nr, u16 max_age)
 	struct os_time curr, diff;
 	unsigned long diff_l;
 
+	if (nr->stationary || max_age == 0xffff)
+		return 1;
+
 	if (!max_age)
 		return 0;
 
-	if (max_age == 0xffff)
-		return 1;
-
 	if (os_get_time(&curr))
 		return 0;