2025-05-29 15:07:58 +08:00

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#!/bin/sh
dev=br-lan
stop_qos() {
tc qdisc del dev $dev root 2>/dev/null
tc qdisc del dev $dev ingress 2>/dev/null
tc qdisc del dev ${dev}-ifb root 2>/dev/null
ip link del dev ${dev}-ifb 2>/dev/null
}
start_qos() {
local dl=$1
local up=$2
tc qdisc add dev $dev root handle 1: htb
tc class add dev $dev parent 1: classid 1:1 htb rate ${dl}mbit
ip link add dev ${dev}-ifb name ${dev}-ifb type ifb
ip link set dev ${dev}-ifb up
tc qdisc add dev ${dev}-ifb root handle 1: htb
tc class add dev ${dev}-ifb parent 1: classid 1:1 htb rate ${up}mbit
tc qdisc add dev $dev ingress
tc filter add dev $dev parent ffff: protocol ip u32 match u32 0 0 flowid 1:1 action mirred egress redirect dev ${dev}-ifb
}
case "$1" in
"stop")
stop_qos
;;
"start")
stop_qos
start_qos $2 $3
;;
"add")
ip="$2"
dl="$3"
up="$4"
cnt=$(tc class show dev $dev | wc -l)
tc class add dev $dev parent 1:1 classid 1:1$cnt htb rate ${dl}mbit ceil ${dl}mbit
tc filter add dev $dev parent 1:0 protocol ip u32 match ip dst $ip flowid 1:1$cnt
tc class add dev ${dev}-ifb parent 1:1 classid 1:1$cnt htb rate ${up}mbit ceil ${up}mbit
tc filter add dev ${dev}-ifb parent 1:0 protocol ip u32 match ip src $ip flowid 1:1$cnt
;;
*)
echo "Usage: $0 <command> [options]"
echo "Commands:"
echo " start dl_rate up_rate #Total bandwidth (Mbit/s)"
echo " stop"
echo " add ip dl_rate up_rate #Limiting the bandwidth of a single IP (Mbit/s)"
echo "Example:"
echo " $0 start 30 20 # Total bandwidth: down 30Mbit/s up 20Mbit/s"
echo " $0 add 192.168.22.12 10 2 # down 10Mbit/s up 2Mbit/s"
;;
esac