// SPDX-License-Identifier: GPL-2.0
#include <errno.h>
#include <error.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <linux/rtnetlink.h>
#include <linux/genetlink.h>
#include "linux/mptcp.h"
#ifndef IPPROTO_MPTCP
#define IPPROTO_MPTCP 262
#endif
static void syntax(char *argv[])
{
fprintf(stderr, "%s add|ann|rem|csf|dsf|get|set|del|flush|dump|events|listen|accept [<args>]\n", argv[0]);
fprintf(stderr, "\tadd [flags signal|subflow|backup|fullmesh] [id <nr>] [dev <name>] <ip><