BPF_LINK_TYPE_SOCKMAP
BPF_LINK_TYPE(BPF_LINK_TYPE_SOCKMAP, sockmap)
bpf_link_init(&sockmap_link->link, BPF_LINK_TYPE_SOCKMAP, &sock_map_link_ops, prog,
case BPF_LINK_TYPE_SOCKMAP:
case BPF_LINK_TYPE_SOCKMAP:
[BPF_LINK_TYPE_SOCKMAP] = "sockmap",