在C#中调用Windows防火墙界面的常见方式

using System.Diagnostics;

Process.Start("firewall.cpl"); // 直接调用控制面板防火墙界面

Process.Start("wf.msc"); // 直接打开防火墙高级安全设置

using System.Diagnostics;

var startInfo = new ProcessStartInfo
{
    FileName = "wf.msc",   // 或者 "firewall.cpl"
    UseShellExecute = true,
    Verb = "runas"         // 请求管理员权限
};

try
{
    Process.Start(startInfo);
}
catch (Exception ex)
{
    Console.WriteLine($"未能启动：{ex.Message}");
}

Process.Start("control.exe", "/name Microsoft.WindowsFirewall");

using System.Runtime.InteropServices;

public class FirewallHelper
{
    [DllImport("ole32.dll")]
    private static extern int CoCreateInstance(
        [In] ref Guid rclsid,
        IntPtr pUnkOuter,
        uint dwClsContext,
        [In] ref Guid riid,
        out INetFwPolicy2 firewallPolicy);

    [Guid("98325047-C671-4174-8D81-DEFCD3F03186"), InterfaceType(ComInterfaceType.InterfaceIsDual)]
    private interface INetFwPolicy2
    {
        int CurrentProfileTypes { get; }
        bool FirewallEnabled { [return: MarshalAs(UnmanagedType.VariantBool)] get; }
        // ... 其他方法
    }

    public static bool IsFirewallEnabled()
    {
        var guid = new Guid("E2B3C97F-6AE1-41AC-817A-F6F92166D7DD");
        var riid = new Guid("98325047-C671-4174-8D81-DEFCD3F03186");
        CoCreateInstance(ref guid, IntPtr.Zero, 1, ref riid, out INetFwPolicy2 policy);

        return policy.FirewallEnabled;
    }
}

using NetFwTypeLib; // 需引用 COM "Windows Firewall Admin Type Library"

public static void AddFirewallRule()
{
    Type fwPolicyType = Type.GetTypeFromProgID("HNetCfg.FwPolicy2");
    INetFwPolicy2 fwPolicy = (INetFwPolicy2)Activator.CreateInstance(fwPolicyType);

    INetFwRule rule = (INetFwRule)Activator.CreateInstance(Type.GetTypeFromProgID("HNetCfg.FWRule"));
    rule.Name = "My Custom Rule";
    rule.Description = "Allow Port 8080";
    rule.Protocol = (int)NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_TCP;
    rule.LocalPorts = "8080";
    rule.Direction = NET_FW_RULE_DIRECTION_.NET_FW_RULE_DIR_IN;
    rule.Action = NET_FW_ACTION_.NET_FW_ACTION_ALLOW;
    rule.Enabled = true;

    fwPolicy.Rules.Add(rule);
}