#!/bin/bash

tmpfile=$(mktemp)
if [ ! -w $tmpfile ] ; then
	echo "Failed to create tmp file" >&2
	exit 0
fi

trap "rm -rf $tmpfile" EXIT # cleanup if aborted

echo "
table ip t {
	map sourcemap {
		type ipv4_addr : verdict;
	}
	chain postrouting {
		ip saddr vmap @sourcemap accept
	}
}
add chain t c
add element t sourcemap { 100.123.10.2 : jump c }
" > $tmpfile

set -e
$NFT -f $tmpfile