The ClearBroadcastData() function will clean all data (Service Data or
Manufacturer Specific Data) set by the current application. All data set
by any other application will be kept.
---
src/adapter.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 80 insertions(+)
diff --git a/src/adapter.c b/src/adapter.c
index 02306a1..bbf6b06 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -2157,9 +2157,89 @@ failed:
return btd_error_failed(msg, strerror(-err));
}
+static void restore_bcast_data(gpointer data, gpointer user_data)
+{
+ struct bcast_session *session = data, *cleared = user_data;
+
+ if (session == cleared)
+ return;
+
+ if (session->data_type != cleared->data_type)
+ return;
+
+ send_advdata_blob(session->adapter, session);
+}
+
+static gint cmp_bcast_session_owner(gconstpointer a, gconstpointer b)
+{
+ const struct bcast_session *session = a;
+ const char *owner = b;
+
+ return g_strcmp0(session->owner, owner);
+}
+
+static gboolean find_bcast_session_by_owner(struct btd_adapter *adapter,
+ const char *sender,
+ struct bcast_session **session)
+{
+ GSList *l;
+
+ l = g_slist_find_custom(adapter->bcast_sessions, sender,
+ cmp_bcast_session_owner);
+ if (!l)
+ return FALSE;
+
+ if (session)
+ *session = l->data;
+
+ return TRUE;
+}
+
static DBusMessage *clear_broadcast_data(DBusConnection *conn,
DBusMessage *msg, void *data)
{
+ struct btd_adapter *adapter = data;
+ struct bcast_session *session;
+ const char *sender;
+ int err;
+
+ sender = dbus_message_get_sender(msg);
+
+ DBG("Clear all data int broadcaster registered for hci%d at %s",
+ adapter->dev_id, sender);
+
+ err = mgmt_set_broadcaster(adapter->dev_id, FALSE);
+ if (err < 0)
+ error("Failed to set Broadcaster: %s (%d)", strerror(-err),
+ -err);
+
+ while (find_bcast_session_by_owner(adapter, sender, &session)) {
+ uint8_t type = session->data_type;
+
+ err = mgmt_unset_controller_data(adapter->dev_id, type);
+ if (err < 0)
+ error("Failed to set Broadcaster: %s (%d)",
+ strerror(-err), -err);
+
+ /* mgmt_unset_controller_data() also clears broadcast data from
+ * other clients with the same data type, so they need to be
+ * restored. */
+ g_slist_foreach(adapter->bcast_sessions, restore_bcast_data,
+ session);
+
+ adapter->bcast_sessions =
+ g_slist_remove(adapter->bcast_sessions, session);
+
+ free_bcast_session(session);
+ }
+
+ if (adapter->bcast_sessions) {
+ err = mgmt_set_broadcaster(adapter->dev_id, TRUE);
+ if (err < 0)
+ error("Failed to set Broadcaster: %s (%d)",
+ strerror(-err), -err);
+ }
+
return dbus_message_new_method_return(msg);
}
--
1.7.9.5
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