[linux-block.git] / net / mptcp / bpf.c

// SPDX-License-Identifier: GPL-2.0
/* Multipath TCP
 *
 * Copyright (c) 2020, Tessares SA.
 * Copyright (c) 2022, SUSE.
 *
 * Author: Nicolas Rybowski <nicolas.rybowski@tessares.net>
 */

#define pr_fmt(fmt) "MPTCP: " fmt

#include <linux/bpf.h>
#include "protocol.h"

struct mptcp_sock *bpf_mptcp_sock_from_subflow(struct sock *sk)
{
	if (sk && sk_fullsock(sk) && sk->sk_protocol == IPPROTO_TCP && sk_is_mptcp(sk))
		return mptcp_sk(mptcp_subflow_ctx(sk)->conn);

	return NULL;
}
Commit	Line	Data
3bc253c2 GT	1	// SPDX-License-Identifier: GPL-2.0
	2	/* Multipath TCP
	3	*
	4	* Copyright (c) 2020, Tessares SA.
	5	* Copyright (c) 2022, SUSE.
	6	*
	7	* Author: Nicolas Rybowski <nicolas.rybowski@tessares.net>
	8	*/
	9
	10	#define pr_fmt(fmt) "MPTCP: " fmt
	11
	12	#include <linux/bpf.h>
	13	#include "protocol.h"
	14
	15	struct mptcp_sock bpf_mptcp_sock_from_subflow(struct sock sk)
	16	{
	17	if (sk && sk_fullsock(sk) && sk->sk_protocol == IPPROTO_TCP && sk_is_mptcp(sk))
	18	return mptcp_sk(mptcp_subflow_ctx(sk)->conn);
	19
	20	return NULL;
	21	}