C# 添加修改防火墙端口及程序

一、添加 COM 引用 在引用里,选择 COM 页, 找到 NetFwTypeLib , 点击确定

 二、添加允许通过防火墙的例外程序

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using NetFwTypeLib;
namespace L.Common
{
    public static class FwHelper
    {
            
        /// <summary>
        /// 添加防火墙例外端口
        /// </summary>
        /// <param name="name">名称</param>
        /// <param name="port">端口</param>
        /// <param name="protocol">协议(TCP、UDP)</param>
        public static void NetFwAddPorts(string name, int port, string protocol)
        {
            //创建firewall管理类的实例
            INetFwMgr netFwMgr = (INetFwMgr)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FwMgr"));
            INetFwOpenPort objPort = (INetFwOpenPort)Activator.CreateInstance(
            Type.GetTypeFromProgID("HNetCfg.FwOpenPort"));
            objPort.Name = name;
            objPort.Port = port;
            if (protocol.ToUpper() == "TCP")
            {
                objPort.Protocol = NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_TCP;
            }
            else
            {
                objPort.Protocol = NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_UDP;
            }
            objPort.Scope = NET_FW_SCOPE_.NET_FW_SCOPE_ALL;
            objPort.Enabled = true;
            bool exist = false;
            //加入到防火墙的管理策略
            foreach (INetFwOpenPort mPort in netFwMgr.LocalPolicy.CurrentProfile.GloballyOpenPorts)
            {
                if (objPort == mPort)
                {
                    exist = true;
                    break;
                }
            }
            if (!exist) netFwMgr.LocalPolicy.CurrentProfile.GloballyOpenPorts.Add(objPort);
        }       


        /// <summary>
        /// 将应用程序添加到防火墙例外
        /// </summary>
        /// <param name="name">应用程序名称</param>
        /// <param name="executablePath">应用程序可执行文件全路径</param>
        public static void NetFwAddApps(string name, string executablePath)
        {
            //创建firewall管理类的实例
            INetFwMgr netFwMgr = (INetFwMgr)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FwMgr"));
            INetFwAuthorizedApplication app = (INetFwAuthorizedApplication)Activator.CreateInstance(
            Type.GetTypeFromProgID("HNetCfg.FwAuthorizedApplication"));
            //在例外列表里,程序显示的名称
            app.Name = name;
            //程序的路径及文件名
            app.ProcessImageFileName = executablePath;
            //是否启用该规则
            app.Enabled = true;
            //加入到防火墙的管理策略
            netFwMgr.LocalPolicy.CurrentProfile.AuthorizedApplications.Add(app);
            bool exist = false;
            //加入到防火墙的管理策略
            foreach (INetFwAuthorizedApplication mApp in netFwMgr.LocalPolicy.CurrentProfile.AuthorizedApplications)
            {
                if (app == mApp)
                {
                    exist = true;
                    break;
                }
            }
            if (!exist) netFwMgr.LocalPolicy.CurrentProfile.AuthorizedApplications.Add(app);
        }


        /// <summary>
        /// 删除防火墙例外端口
        /// </summary>
        /// <param name="port">端口</param>
        /// <param name="protocol">协议(TCP、UDP)</param>
        public static void NetFwDelApps(int port,string protocol)
        {
            INetFwMgr netFwMgr = (INetFwMgr)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FwMgr"));
            if (protocol == "TCP")
            {
                netFwMgr.LocalPolicy.CurrentProfile.GloballyOpenPorts.Remove(port, NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_TCP);
            }
            else
            {
                netFwMgr.LocalPolicy.CurrentProfile.GloballyOpenPorts.Remove(port, NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_UDP);
            }
        }


        /// <summary>
        /// 删除防火墙例外中应用程序
        /// </summary>
        /// <param name="executablePath">程序的绝对路径</param>
        public static void NetFwDelApps(string executablePath)
        {
            INetFwMgr netFwMgr = (INetFwMgr)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FwMgr"));
            netFwMgr.LocalPolicy.CurrentProfile.AuthorizedApplications.Remove(executablePath);
        }
    }
}
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评论 2

  1. #1

    小程序上面代码显示部分样式乱掉了

    LAnubis4个月前 (04-15)回复
    • pc端看起来正常的

      匿名4个月前 (04-16)回复