This patch adds the initial callbacks to track when BlueZ connects or
disconnects from the system bus. And tracks the interfaces added or
removed.
---
 plugins/bluez5.h        |  3 ++-
 plugins/hfp_hf_bluez5.c | 72 ++++++++++++++++++++++++++++++++++++++++++-------
 2 files changed, 65 insertions(+), 10 deletions(-)

diff --git a/plugins/bluez5.h b/plugins/bluez5.h
index 01ecfe8..893072f 100644
--- a/plugins/bluez5.h
+++ b/plugins/bluez5.h
@@ -19,7 +19,8 @@
  *
  */
 
-#define	BLUEZ_SERVICE "org.bluez"
+#define BLUEZ_SERVICE			"org.bluez"
+#define BLUEZ_MANAGER_PATH		"/"
 #define BLUEZ_PROFILE_INTERFACE		BLUEZ_SERVICE ".Profile1"
 #define BLUEZ_ERROR_INTERFACE		BLUEZ_SERVICE ".Error"
 
diff --git a/plugins/hfp_hf_bluez5.c b/plugins/hfp_hf_bluez5.c
index e024838..c5c5cd7 100644
--- a/plugins/hfp_hf_bluez5.c
+++ b/plugins/hfp_hf_bluez5.c
@@ -42,6 +42,8 @@
 
 #define HFP_EXT_PROFILE_PATH   "/bluetooth/profile/hfp_hf"
 
+static GDBusClient *bluez = NULL;
+
 static int hfp_probe(struct ofono_modem *modem)
 {
 	DBG("modem: %p", modem);
@@ -143,6 +145,60 @@ static const GDBusMethodTable profile_methods[] = {
 	{ }
 };
 
+static void connect_handler(DBusConnection *conn, void *user_data)
+{
+	DBG("Registering External Profile handler ...");
+
+	if (!g_dbus_register_interface(conn, HFP_EXT_PROFILE_PATH,
+					BLUEZ_PROFILE_INTERFACE,
+					profile_methods, NULL,
+					NULL, NULL, NULL)) {
+		ofono_error("Register Profile interface failed: %s",
+						HFP_EXT_PROFILE_PATH);
+	}
+
+	bluetooth_register_profile(conn, HFP_HS_UUID, "hfp_hf",
+						   HFP_EXT_PROFILE_PATH);
+}
+
+static void disconnect_handler(DBusConnection *conn, void *user_data)
+{
+
+	DBG("Unregistering External Profile handler ...");
+
+	g_dbus_unregister_interface(conn, HFP_EXT_PROFILE_PATH,
+						BLUEZ_PROFILE_INTERFACE);
+}
+
+static void proxy_added(GDBusProxy *proxy, void *user_data)
+{
+	const char *path;
+
+	path = g_dbus_proxy_get_path(proxy);
+
+	DBG("Device proxy: %s(%p)", path, proxy);
+}
+
+static void proxy_removed(GDBusProxy *proxy, void *user_data)
+{
+	const char *path;
+
+	path = g_dbus_proxy_get_path(proxy);
+
+	DBG("Device proxy: %s(%p)", path, proxy);
+}
+
+static void property_changed(GDBusProxy *proxy, const char *name,
+					DBusMessageIter *iter, void *user_data)
+{
+	const char *interface, *path;
+
+	interface = g_dbus_proxy_get_interface(proxy);
+	path = g_dbus_proxy_get_path(proxy);
+
+	DBG("path: %s interface: %s", path, interface);
+}
+
 static int hfp_init(void)
 {
 	DBusConnection *conn = ofono_dbus_get_connection();
@@ -161,19 +217,16 @@ static int hfp_init(void)
 		return -EIO;
 	}
 
-	err = ofono_modem_driver_register(&hfp_driver);
-	if (err < 0) {
-		g_dbus_unregister_interface(conn, HFP_EXT_PROFILE_PATH,
-						BLUEZ_PROFILE_INTERFACE);
-		return err;
-	}
+	bluez = g_dbus_client_new(conn, BLUEZ_SERVICE, BLUEZ_MANAGER_PATH);
+	g_dbus_client_set_connect_watch(bluez, connect_handler, NULL);
+	g_dbus_client_set_disconnect_watch(bluez, disconnect_handler, NULL);
+	g_dbus_client_set_proxy_handlers(bluez, proxy_added, proxy_removed,
+						property_changed, NULL);
 
-	err = bluetooth_register_profile(conn, HFP_HS_UUID, "hfp_hf",
-						HFP_EXT_PROFILE_PATH);
+	err = ofono_modem_driver_register(&hfp_driver);
 	if (err < 0) {
 		g_dbus_unregister_interface(conn, HFP_EXT_PROFILE_PATH,
 						BLUEZ_PROFILE_INTERFACE);
-		ofono_modem_driver_unregister(&hfp_driver);
 		return err;
 	}
 
@@ -188,6 +241,7 @@ static void hfp_exit(void)
 	g_dbus_unregister_interface(conn, HFP_EXT_PROFILE_PATH,
 						BLUEZ_PROFILE_INTERFACE);
 	ofono_modem_driver_unregister(&hfp_driver);
+	g_dbus_client_unref(bluez);
 }
 
 OFONO_PLUGIN_DEFINE(hfp_bluez5, "External Hands-Free Profile Plugin", VERSION,
-- 
1.8.1.1