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#!/bin/bash
ip link add d0 type dummy || {
echo "Skipping, no dummy interface available"
exit 0
}
trap "ip link del d0" EXIT
ip link add d1 type dummy || {
echo "Skipping, no dummy interface available"
exit 0
}
trap "ip link del d1" EXIT
ip link add d2 type dummy || {
echo "Skipping, no dummy interface available"
exit 0
}
trap "ip link del d2" EXIT
set -e
RULESET="table netdev x {
chain y {
type filter hook ingress priority 0; policy accept;
}
}"
$NFT -f - <<< "$RULESET"
$NFT add chain netdev x y '{ devices = { d0 }; }'
$NFT add chain netdev x y '{ devices = { d1, d2, lo }; }'
$NFT delete chain netdev x y '{ devices = { lo }; }'
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