C# 设置防火墙的创建规则

/// <summary>
/// 为WindowsDefender防火墙添加一条通信端口出站规则
/// </summary>
/// <param name="type">规则类型</param>
/// <param name="ruleName">规则名称</param>
/// <param name="appPath">应用程序完整路径</param>
/// <param name="localAddresses">本地地址</param>
/// <param name="localPorts">本地端口</param>
/// <param name="remoteAddresses">远端地址</param>
/// <param name="remotePorts">远端端口</param>
public static bool CreateOutRule(NET_FW_IP_PROTOCOL_ type, string ruleName, string appPath, string localAddresses = null, string localPorts = null, string remoteAddresses = null, string remotePorts = null)
{
  //创建防火墙策略类的实例
  INetFwPolicy2 policy2 = (INetFwPolicy2)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FwPolicy2"));
  //检查是否有同名规则
  foreach (INetFwRule item in policy2.Rules)
  {
    if (item.Name == ruleName)
    {
      return true;
    }
  }
  //创建防火墙规则类的实例: 有关该接口的详细介绍：https://docs.microsoft.com/zh-cn/windows/win32/api/netfw/nn-netfw-inetfwrule
  INetFwRule rule = (INetFwRule)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FwRule"));
  //为规则添加名称
  rule.Name = ruleName;
  //为规则添加描述
  rule.Description = "禁止程序访问非指定端口";
  //选择入站规则还是出站规则，IN为入站，OUT为出站
  rule.Direction = NET_FW_RULE_DIRECTION_.NET_FW_RULE_DIR_OUT;
  //为规则添加协议类型
  rule.Protocol = (int)type;
  //为规则添加应用程序（注意这里是应用程序的绝对路径名）
  rule.ApplicationName = appPath;
  //为规则添加本地IP地址  
  if (!string.IsNullOrEmpty(localAddresses))
  {
    rule.LocalAddresses = localAddresses;
  }

  //为规则添加本地端口
  if (!string.IsNullOrEmpty(localPorts))
  {
    //需要移除空白字符（不能包含空白字符，下同）
    rule.LocalPorts = localPorts.Replace(" ", "");// "1-29999, 30003-33332, 33334-55554, 55556-60004, 60008-65535";
  }
  //为规则添加远程IP地址
  if (!string.IsNullOrEmpty(remoteAddresses))
  {
    rule.RemoteAddresses = remoteAddresses;
  }
  //为规则添加远程端口
  if (!string.IsNullOrEmpty(remotePorts))
  {
    rule.RemotePorts = remotePorts.Replace(" ", "");
  }
  //设置规则是阻止还是允许（ALLOW=允许，BLOCK=阻止）
  rule.Action = NET_FW_ACTION_.NET_FW_ACTION_BLOCK;
  //分组 名
  rule.Grouping = "GroupsName";

  rule.InterfaceTypes = "All";
  //是否启用规则
  rule.Enabled = true;
  try
  {
    //添加规则到防火墙策略
    policy2.Rules.Add(rule);
  }
  catch (Exception e)
  {
    string error = $"防火墙添加规则出错：{ruleName} {e.Message}";
    AppLog.Error(error);
    throw new Exception(error);
  }
  return true;
}

/// <summary>
 /// 为WindowsDefender防火墙添加一条U3D通信TCP端口出站规则
 /// </summary>
 /// <param name="appPath">应用程序完整路径</param>
 /// <param name="localAddresses">本地地址</param>
 /// <param name="localPorts">本地端口</param>
 /// <param name="remoteAddresses">远端地址</param>
 /// <param name="remotePorts">远端端口</param>
 public static bool CreateTCPOutRule(string appPath, string localAddresses = null, string localPorts = null, string remoteAddresses = null, string remotePorts = null)
 {
   try
   {
     string ruleName = $"{System.IO.Path.GetFileNameWithoutExtension(appPath)}TCP";
     CreateOutRule(NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_TCP, ruleName, appPath, localAddresses, localPorts, remoteAddresses, remotePorts);

   }
   catch (Exception e)
   {
     AppLog.Error(e.Message);
     throw new Exception(e.Message);
   }
   return true;
 }

/// <summary>
/// 为WindowsDefender防火墙添加一条通信UDP端口出站规则
/// </summary>
/// <param name="appPath">应用程序完整路径</param>
/// <param name="localAddresses">本地地址</param>
/// <param name="localPorts">本地端口</param>
/// <param name="remoteAddresses">远端地址</param>
/// <param name="remotePorts">远端端口</param>
public static bool CreateUDPOutRule(string appPath, string localAddresses = null, string localPorts = null, string remoteAddresses = null, string remotePorts = null)
{
  try
  {
    string ruleName = $"{System.IO.Path.GetFileNameWithoutExtension(appPath)}UDP";
    CreateOutRule(NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_UDP, ruleName, appPath, localAddresses, localPorts, remoteAddresses, remotePorts);

  }
  catch (Exception e)
  {
    AppLog.Error(e.Message);
    throw new Exception(e.Message);
  }
  return true;
}

/// <summary>
/// 删除WindowsDefender防火墙规则
/// <summary>
/// <param name="appPath">应用程序完整路径</param>
public static bool DeleteRule(string appPath)
{
  //创建防火墙策略类的实例
  INetFwPolicy2 policy2 = (INetFwPolicy2)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FwPolicy2"));
  string ruleName = System.IO.Path.GetFileNameWithoutExtension(appPath);
  try
  {
    //根据规则名称移除规则
    policy2.Rules.Remove(ruleName);
  }
  catch (Exception e)
  {
    string error = $"防火墙删除规则出错：{ruleName} {e.Message}";
    AppLog.Error(error);
    throw new Exception(error);
  }
  return true;
}