flags_map
static const struct flags_map shutdown_map[] = {
const struct flags_map *map,
const struct flags_map *m;
int flags_map;
flags_map = bpf_map__fd(xdp_redirect_multi_kern->maps.redirect_flags);
err = bpf_map_update_elem(flags_map, &protocol, &redirect_flags, BPF_NOEXIST);