通过c sharp获取防火墙状态和修改和添加防火墙规则

你可以使用C#中的System.Management命名空间中的ManagementObject类来获取防火墙状态和修改和添加防火墙规则。以下是获取防火墙状态的示例代码：

using System.Management;

public static bool IsFirewallEnabled()
{
    bool isEnabled = false;
    ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM CIM_Service WHERE DisplayName = 'Windows Firewall'");
    foreach (ManagementObject obj in searcher.Get())
    {
        isEnabled = (bool)obj["Started"];
        break;
    }
    return isEnabled;
}

以下是添加防火墙规则的示例代码：

using System.Management;

public static void AddFirewallRule(string ruleName, string ruleDescription, string applicationPath, bool isEnable = true)
{
    ManagementObject classInstance = new ManagementObject("root\\StandardCimv2", "MSFT_NetFirewallRule", null);

    //set properties for the new rule
    classInstance.SetPropertyValue("Name", ruleName);
    classInstance.SetPropertyValue("Description", ruleDescription);
    classInstance.SetPropertyValue("ApplicationPath", applicationPath);
    classInstance.SetPropertyValue("Enabled", isEnable);
    classInstance.SetPropertyValue("Direction", 1); // 1 = Inbound, 2 = Outbound
    classInstance.SetPropertyValue("Profile", 0x7fffffff); // All profiles

    //invoke the Create method to create the new rule
    ManagementBaseObject inParams = classInstance.GetMethodParameters("Create");
    ManagementBaseObject outParams = classInstance.InvokeMethod("Create", inParams, null);
}

同理，你也可以使用相似的代码来修改和删除防火墙规则。