#!/bin/bash

set -e

RULESET='table inet filter {

    flowtable f {
        hook ingress priority filter - 1
        devices = { lo }
    }

    chain y {
        type filter hook forward priority 0;
        flow add @f counter
    }
}'

$NFT -f - <<< "$RULESET"

RULESET='delete rule inet filter y handle 3
delete flowtable inet filter f

table inet filter {
    flowtable f {
        hook ingress priority filter - 1
        devices = { lo }
        counter
    }

    chain y {
        type filter hook forward priority 0;
        flow add @f counter
    }
}'

$NFT -f - <<< "$RULESET"