97 lines
3.1 KiB
Bash
97 lines
3.1 KiB
Bash
#!/bin/bash
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# 定义网络接口和限速参数
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INTERFACE="eno1"
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LIMIT_RATE="2mbit"
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PORTS=("8337" "8338") # 指定限速的端口
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# 加载 ifb 模块并确保 ifb0 存在且启用
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prepare_ifb() {
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modprobe ifb 2>/dev/null
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ip link show ifb0 >/dev/null 2>&1 || ip link add ifb0 type ifb
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ip link set ifb0 up 2>/dev/null
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}
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# 清理旧规则
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clear_rules() {
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echo "Removing old bandwidth rules..."
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tc qdisc del dev "$INTERFACE" root 2>/dev/null || true
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tc qdisc del dev "$INTERFACE" ingress 2>/dev/null || true
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tc qdisc del dev ifb0 root 2>/dev/null || true
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ip link set ifb0 down 2>/dev/null || true
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echo "Old rules removed successfully."
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}
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# 添加所有端口的限速
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add_all_ports_limit() {
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echo "Applying bandwidth limit to all ports..."
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# 添加上行规则
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tc qdisc add dev "$INTERFACE" root handle 1: htb default 11
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tc class add dev "$INTERFACE" parent 1: classid 1:1 htb rate "$LIMIT_RATE" ceil "$LIMIT_RATE"
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tc class add dev "$INTERFACE" parent 1:1 classid 1:11 htb rate "$LIMIT_RATE" ceil "$LIMIT_RATE"
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# 未指定过滤器，默认限制所有流量
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echo "All ports are now limited to $LIMIT_RATE."
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# 添加下行规则
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tc qdisc add dev ifb0 root handle 1: htb default 11
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tc class add dev ifb0 parent 1: classid 1:1 htb rate "$LIMIT_RATE" ceil "$LIMIT_RATE"
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tc class add dev ifb0 parent 1:1 classid 1:11 htb rate "$LIMIT_RATE" ceil "$LIMIT_RATE"
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# 将 ingress 流量重定向到 ifb0
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tc qdisc add dev "$INTERFACE" ingress
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tc filter add dev "$INTERFACE" parent ffff: protocol ip prio 1 u32 match ip protocol 0x06 0xff action mirred egress redirect dev ifb0
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echo "Bandwidth limit applied to all ports successfully."
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}
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# 添加指定端口的限速
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add_specified_ports_limit() {
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echo "Applying bandwidth limit to specified ports (${PORTS[*]})..."
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# 添加上行规则
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tc qdisc add dev "$INTERFACE" root handle 1: htb
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tc class add dev "$INTERFACE" parent 1: classid 1:1 htb rate "$LIMIT_RATE" ceil "$LIMIT_RATE"
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for PORT in "${PORTS[@]}"; do
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tc filter add dev "$INTERFACE" protocol ip parent 1:0 prio 1 u32 match ip dport "$PORT" 0xffff flowid 1:1
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done
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# 添加下行规则
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tc qdisc add dev ifb0 root handle 1: htb
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tc class add dev ifb0 parent 1: classid 1:1 htb rate "$LIMIT_RATE" ceil "$LIMIT_RATE"
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for PORT in "${PORTS[@]}"; do
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tc filter add dev ifb0 protocol ip parent 1:0 prio 1 u32 match ip sport "$PORT" 0xffff flowid 1:1
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done
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# 将 ingress 流量重定向到 ifb0
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tc qdisc add dev "$INTERFACE" ingress
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for PORT in "${PORTS[@]}"; do
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tc filter add dev "$INTERFACE" parent ffff: protocol ip prio 1 u32 match ip sport "$PORT" 0xffff action mirred egress redirect dev ifb0
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done
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echo "Bandwidth limit applied to specified ports (${PORTS[*]}) successfully."
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}
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case "$1" in
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addall)
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clear_rules
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prepare_ifb
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add_all_ports_limit
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;;
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add)
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clear_rules
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prepare_ifb
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add_specified_ports_limit
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;;
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del)
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clear_rules
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;;
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*)
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echo "Usage: $0 {addall|add|del}"
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exit 1
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;;
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esac
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