network: add network_bss_update

This will swap out a scan_bss object with a duplicate that may
exist in a networks bss_list. The duplicate will be removed by
since the object is owned by station it is assumed that it will
be freed elsewhere.

src/network.c

@@ -672,6 +672,27 @@ bool network_bss_add(struct network *network, struct scan_bss *bss)
 	return true;
 }
 
+static bool match_addr(const void *a, const void *b)
+{
+	const struct scan_bss *bss = a;
+
+	return memcmp(bss->addr, b, 6) == 0;
+}
+
+/*
+ * Replaces an old scan_bss (if exists) in the bss list with a new bss object.
+ * Note this BSS is *not* freed and must be by the caller. scan_bss objects are
+ * shared between network/station but station technically owns them.
+ */
+bool network_bss_update(struct network *network, struct scan_bss *bss)
+{
+	l_queue_remove_if(network->bss_list, match_addr, bss->addr);
+
+	l_queue_insert(network->bss_list, bss, scan_bss_rank_compare, NULL);
+
+	return true;
+}
+
 bool network_bss_list_isempty(struct network *network)
 {
 	return l_queue_isempty(network->bss_list);

src/network.h

@@ -55,6 +55,7 @@ void network_set_info(struct network *network, struct network_info *info);
 int network_autoconnect(struct network *network, struct scan_bss *bss);
 void network_connect_failed(struct network *network, bool in_handshake);
 bool network_bss_add(struct network *network, struct scan_bss *bss);
+bool network_bss_update(struct network *network, struct scan_bss *bss);
 bool network_bss_list_isempty(struct network *network);
 void network_bss_list_clear(struct network *network);
 struct scan_bss *network_bss_list_pop(struct network *network);