supplicant: track and expose wpa_supplicant's CurrentBSS property

2 files changed, 48 insertions, 6 deletions

diff --git a/src/supplicant-manager/nm-supplicant-interface.c b/src/supplicant-manager/nm-supplicant-interface.c
index cd2151889a..f92bd3bd9c 100644
--- a/src/supplicant-manager/nm-supplicant-interface.c
+++ b/src/supplicant-manager/nm-supplicant-interface.c
@@ -62,6 +62,7 @@ static guint signals[LAST_SIGNAL] = { 0 };
 enum {
 	PROP_0 = 0,
 	PROP_SCANNING,
+	PROP_CURRENT_BSS,
 	LAST_PROP
 };
 
@@ -89,6 +90,7 @@ typedef struct {
 	char *         net_path;
 	guint32        blobs_left;
 	GHashTable *   bss_proxies;
+	char *         current_bss;
 
 	gint32         last_scan; /* timestamp as returned by nm_utils_get_monotonic_timestamp_s() */
 
@@ -318,6 +320,17 @@ nm_supplicant_interface_get_scanning (NMSupplicantInterface *self)
 	return FALSE;
 }
 
+const char *
+nm_supplicant_interface_get_current_bss (NMSupplicantInterface *self)
+{
+	NMSupplicantInterfacePrivate *priv;
+
+	g_return_val_if_fail (self != NULL, FALSE);
+
+	priv = NM_SUPPLICANT_INTERFACE_GET_PRIVATE (self);
+	return priv->state >= NM_SUPPLICANT_INTERFACE_STATE_READY ? priv->current_bss : NULL;
+}
+
 gint32
 nm_supplicant_interface_get_last_scan_time (NMSupplicantInterface *self)
 {
@@ -553,6 +566,8 @@ props_changed_cb (GDBusProxy *proxy,
 	gint32 i32;
 	GVariant *v;
 
+	g_object_freeze_notify (G_OBJECT (self));
+
 	if (g_variant_lookup (changed_properties, "Scanning", "b", &b))
 		set_scanning (self, b);
 
@@ -573,6 +588,16 @@ props_changed_cb (GDBusProxy *proxy,
 		g_free (array);
 	}
 
+	if (g_variant_lookup (changed_properties, "CurrentBSS", "&o", &s)) {
+		if (strcmp (s, "/") == 0)
+			s = NULL;
+		if (g_strcmp0 (s, priv->current_bss) != 0) {
+			g_free (priv->current_bss);
+			priv->current_bss = g_strdup (s);
+			g_object_notify (G_OBJECT (self), NM_SUPPLICANT_INTERFACE_CURRENT_BSS);
+		}
+	}
+
 	v = g_variant_lookup_value (changed_properties, "Capabilities", G_VARIANT_TYPE_VARDICT);
 	if (v) {
 		parse_capabilities (self, v);
@@ -592,6 +617,8 @@ props_changed_cb (GDBusProxy *proxy,
 				         priv->disconnect_reason);
 		}
 	}
+
+	g_object_thaw_notify (G_OBJECT (self));
 }
 
 static void
@@ -1267,11 +1294,7 @@ set_property (GObject *object,
               const GValue *value,
               GParamSpec *pspec)
 {
-	switch (prop_id) {
-	default:
-		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-		break;
-	}
+	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 }
 
 static void
@@ -1280,9 +1303,14 @@ get_property (GObject *object,
               GValue *value,
               GParamSpec *pspec)
 {
+	NMSupplicantInterfacePrivate *priv = NM_SUPPLICANT_INTERFACE_GET_PRIVATE (object);
+
 	switch (prop_id) {
 	case PROP_SCANNING:
-		g_value_set_boolean (value, NM_SUPPLICANT_INTERFACE_GET_PRIVATE (object)->scanning);
+		g_value_set_boolean (value, priv->scanning);
+		break;
+	case PROP_CURRENT_BSS:
+		g_value_set_string (value, priv->current_bss);
 		break;
 	default:
 		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@@ -1313,6 +1341,7 @@ dispose (GObject *object)
 	g_clear_pointer (&priv->net_path, g_free);
 	g_clear_pointer (&priv->dev, g_free);
 	g_clear_pointer (&priv->object_path, g_free);
+	g_clear_pointer (&priv->current_bss, g_free);
 
 	g_clear_object (&priv->cfg);
 
@@ -1339,6 +1368,13 @@ nm_supplicant_interface_class_init (NMSupplicantInterfaceClass *klass)
 		                      FALSE,
 		                      G_PARAM_READABLE));
 
+	g_object_class_install_property
+		(object_class, PROP_CURRENT_BSS,
+		 g_param_spec_string (NM_SUPPLICANT_INTERFACE_CURRENT_BSS, "", "",
+		                      NULL,
+		                      G_PARAM_READABLE |
+		                      G_PARAM_STATIC_STRINGS));
+
 	/* Signals */
 	signals[STATE] =
 		g_signal_new (NM_SUPPLICANT_INTERFACE_STATE,
diff --git a/src/supplicant-manager/nm-supplicant-interface.h b/src/supplicant-manager/nm-supplicant-interface.h
index 1908885675..646a2275ae 100644
--- a/src/supplicant-manager/nm-supplicant-interface.h
+++ b/src/supplicant-manager/nm-supplicant-interface.h
@@ -55,6 +55,10 @@ enum {
 #define NM_IS_SUPPLICANT_INTERFACE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  NM_TYPE_SUPPLICANT_INTERFACE))
 #define NM_SUPPLICANT_INTERFACE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  NM_TYPE_SUPPLICANT_INTERFACE, NMSupplicantInterfaceClass))
 
+/* Properties */
+#define NM_SUPPLICANT_INTERFACE_CURRENT_BSS      "current-bss"
+
+/* Signals */
 #define NM_SUPPLICANT_INTERFACE_STATE            "state"
 #define NM_SUPPLICANT_INTERFACE_REMOVED          "removed"
 #define NM_SUPPLICANT_INTERFACE_NEW_BSS          "new-bss"
@@ -146,6 +150,8 @@ const char *nm_supplicant_interface_state_to_string (guint32 state);
 
 gboolean nm_supplicant_interface_get_scanning (NMSupplicantInterface *self);
 
+const char *nm_supplicant_interface_get_current_bss (NMSupplicantInterface *self);
+
 gint32 nm_supplicant_interface_get_last_scan_time (NMSupplicantInterface *self);
 
 const char *nm_supplicant_interface_get_ifname (NMSupplicantInterface *self);