DragonOS/tools/qemu/ifdown-nat

#!/bin/bash
BRIDGE=dragonos-bridge
if [ -n "$1" ]; then
        echo "正在断开接口 $1"
        ip link set $1 down
        brctl delif "$BRIDGE" $1
        tap=`brctl show | grep natnet | awk '{print $4}'`
        if [[ $tap != tap* ]];then
            ip link set "$BRIDGE" down
            brctl delbr "$BRIDGE"
            iptables -t nat -F
            kill `ps aux | grep dnsmasq | grep -v grep | awk '{print $2}'`
            echo "断开接口 $1 成功"
            echo "网桥 $BRIDGE 卸载成功"
            echo "dnsmasq 服务停止成功"
            exit 0
        else
            echo "断开接口 $1 成功"
            exit 0
        fi
else
        echo "删除错误：未指定接口"
        exit 1
fi