#!/bin/bash

# must fail: expr MAP { expr : type1, expr : type2, .. } expr

set -e

$NFT add table ip filter
$NFT add chain ip filter output { type filter hook output priority 0 \; }

$NFT add rule ip filter output meta mark set tcp dport map { 22 : 1, 23 : 192.168.0.1 } || exit 0

echo "E: Added two different types of expression to map"
exit 1