bpf_dctcp_release.c (625B)
1// SPDX-License-Identifier: GPL-2.0 2/* Copyright (c) 2021 Facebook */ 3 4#include <stddef.h> 5#include <linux/bpf.h> 6#include <linux/types.h> 7#include <linux/stddef.h> 8#include <linux/tcp.h> 9#include <bpf/bpf_helpers.h> 10#include <bpf/bpf_tracing.h> 11#include "bpf_tcp_helpers.h" 12 13char _license[] SEC("license") = "GPL"; 14const char cubic[] = "cubic"; 15 16void BPF_STRUCT_OPS(dctcp_nouse_release, struct sock *sk) 17{ 18 bpf_setsockopt(sk, SOL_TCP, TCP_CONGESTION, 19 (void *)cubic, sizeof(cubic)); 20} 21 22SEC(".struct_ops") 23struct tcp_congestion_ops dctcp_rel = { 24 .release = (void *)dctcp_nouse_release, 25 .name = "bpf_dctcp_rel", 26};