int (*register_loop) (const char *ifname, int group);
int (*unregister_loop) (const char *ifname, int group);
int (*get_all_loop) (GVariantBuilder *builder);
int (*register_loop) (const char *ifname, int group);
int (*unregister_loop) (const char *ifname, int group);
int (*get_all_loop) (GVariantBuilder *builder);