+static int patch_sender(sd_bus *a, sd_bus_message *m) {
+ char **well_known = NULL;
+ sd_bus_creds *c;
+ int r;
+
+ assert(a);
+ assert(m);
+
+ if (!a->is_kernel)
+ return 0;
+
+ /* We will change the sender of messages from the bus driver
+ * so that they originate from the bus driver. This is a
+ * speciality originating from dbus1, where the bus driver did
+ * not have a unique id, but only the well-known name. */
+
+ c = sd_bus_message_get_creds(m);
+ if (!c)
+ return 0;
+
+ r = sd_bus_creds_get_well_known_names(c, &well_known);
+ if (r < 0)
+ return r;
+
+ if (strv_contains(well_known, "org.freedesktop.DBus"))
+ m->sender = "org.freedesktop.DBus";
+
+ return 0;
+}
+