RNR: Add bss_parameters to the neighbor_db

Add a new field to include BSS Parameter subfield in the neighbor
database as described in IEEE Std 802.11ax-2021, Figure 9-632a (BSS
Parameters subfield format). This field holds information related to
multiple BSSID, access point co-location, and 20 TU probe response
active/inactive state.

Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Aloka Dixit <alokad@codeaurora.org>

hostapd/ctrl_iface.c

@@ -3191,6 +3191,7 @@ static int hostapd_ctrl_iface_set_neighbor(struct hostapd_data *hapd, char *buf)
 	u8 bssid[ETH_ALEN];
 	struct wpabuf *nr, *lci = NULL, *civic = NULL;
 	int stationary = 0;
+	int bss_parameters = 0;
 	char *tmp;
 	int ret;
 
@@ -3275,9 +3276,22 @@ static int hostapd_ctrl_iface_set_neighbor(struct hostapd_data *hapd, char *buf)
 	if (os_strstr(buf, "stat"))
 		stationary = 1;
 
+	tmp = os_strstr(buf, "bss_parameter=");
+	if (tmp) {
+		bss_parameters = atoi(tmp + 14);
+		if (bss_parameters < 0 || bss_parameters > 0xff) {
+			wpa_printf(MSG_ERROR,
+				   "CTRL: SET_NEIGHBOR: Bad bss_parameters subelement");
+			wpabuf_free(nr);
+			wpabuf_free(lci);
+			wpabuf_free(civic);
+			return -1;
+		}
+	}
+
 set:
 	ret = hostapd_neighbor_set(hapd, bssid, &ssid, nr, lci, civic,
-				   stationary);
+				   stationary, bss_parameters);
 
 	wpabuf_free(nr);
 	wpabuf_free(lci);

src/ap/hostapd.h

@@ -139,6 +139,7 @@ struct hostapd_neighbor_entry {
 	struct os_time lci_date;
 	int stationary;
 	u32 short_ssid;
+	u8 bss_parameters;
 };
 
 struct hostapd_sae_commit_queue {

src/ap/neighbor_db.c

@@ -121,7 +121,8 @@ 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, int stationary)
+			 const struct wpabuf *civic, int stationary,
+			 u8 bss_parameters)
 {
 	struct hostapd_neighbor_entry *entry;
 
@@ -154,6 +155,7 @@ int hostapd_neighbor_set(struct hostapd_data *hapd, const u8 *bssid,
 	}
 
 	entry->stationary = stationary;
+	entry->bss_parameters = bss_parameters;
 
 	return 0;
 
@@ -313,7 +315,7 @@ void hostapd_neighbor_set_own_report(struct hostapd_data *hapd)
 	wpabuf_put_u8(nr, center_freq2_idx);
 
 	hostapd_neighbor_set(hapd, hapd->own_addr, &ssid, nr, hapd->iconf->lci,
-			     hapd->iconf->civic, hapd->iconf->stationary_ap);
+			     hapd->iconf->civic, hapd->iconf->stationary_ap, 0);
 
 	wpabuf_free(nr);
 #endif /* NEED_AP_MLME */

src/ap/neighbor_db.h

@@ -17,7 +17,8 @@ int hostapd_neighbor_show(struct hostapd_data *hapd, char *buf, size_t buflen);
 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, int stationary);
+			 const struct wpabuf *civic, int stationary,
+			 u8 bss_parameters);
 void hostapd_neighbor_set_own_report(struct hostapd_data *hapd);
 int hostapd_neighbor_remove(struct hostapd_data *hapd, const u8 *bssid,
 			    const struct wpa_ssid_value *ssid);