File: delete_element

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nftables 1.1.6-1
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#!/bin/bash

set -e

RULESET="flush ruleset

table ip x {
        map m {
                typeof ct bytes : meta priority
                flags interval
                elements = {
                        0-2048000 : 1:0001,
                        2048001-4000000 : 1:0002,
                }
        }

        chain y {
                type filter hook output priority 0; policy accept;

                meta priority set ct bytes map @m
        }
}"

$NFT -f - <<< $RULESET

$NFT delete element ip x m { 0-2048000 }
$NFT add element ip x m { 0-2048000 : 1:0002 }
$NFT delete element ip x m { 0-2048000 : 1:0002 }