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Apply netem packet rules to only UDP traffic (#6754)

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Pankaj Garg 2019-11-05 18:34:04 -08:00 committed by GitHub
parent 1c5d2a85cf
commit 0c2bf022fa
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1 changed files with 10 additions and 1 deletions
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11
scripts/netem.sh
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@ -16,5 +16,14 @@ fi
set -x
iface="$(ifconfig | grep mtu | grep -iv loopback | grep -i running | awk 'BEGIN { FS = ":" } ; {print $1}')"
if [[ "$1" = delete ]]; then
$sudo iptables -F -t mangle
else
$sudo iptables -A POSTROUTING -t mangle -p udp -j MARK --set-mark 1
fi
$sudo tc qdisc "$1" dev "$iface" root handle 1: prio
# shellcheck disable=SC2086 # Do not want to quote $2. It has space separated arguments for netem
$sudo tc qdisc "$1" dev "$iface" root netem $2
$sudo tc qdisc "$1" dev "$iface" parent 1:3 handle 30: netem $2
$sudo tc filter "$1" dev "$iface" parent 1:0 protocol ip prio 3 handle 1 fw flowid 1:3