1// SPDX-License-Identifier: GPL-2.0 2/* Copyright (c) 2021 Facebook */ 3 4#include "bpf_tracing_net.h" 5#include <bpf/bpf_helpers.h> 6#include <bpf/bpf_tracing.h> 7 8char _license[] SEC("license") = "GPL"; 9const char cubic[] = "cubic"; 10 11SEC("struct_ops") 12void BPF_PROG(dctcp_nouse_release, struct sock *sk) 13{ 14 bpf_setsockopt(sk, SOL_TCP, TCP_CONGESTION, 15 (void *)cubic, sizeof(cubic)); 16} 17 18SEC(".struct_ops") 19struct tcp_congestion_ops dctcp_rel = { 20 .release = (void *)dctcp_nouse_release, 21 .name = "bpf_dctcp_rel", 22}; 23