■ 방화벽을 설정하는 방법을 보여준다.
▶ FirewallHelper.cs
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using System; using System.Collections; using NetFwTypeLib; namespace TestProject { /// <summary> /// 방화벽 헬퍼 /// </summary> public static class FirewallHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 애플리케이션 방화벽 열기 - OpenApplicationFirewall(applicationName, applicationFilePath) /// <summary> /// 애플리케이션 방화벽 열기 /// </summary> public static void OpenApplicationFirewall(string applicationName, string applicationFilePath) { INetFwAuthorizedApplications netFwAuthorizedApplications = null; INetFwAuthorizedApplication netFwAuthorizedApplication = null; try { if(!FindApplication(applicationName)) { INetFwProfile netFwProfile = GetProfile(); netFwAuthorizedApplications = netFwProfile.AuthorizedApplications; netFwAuthorizedApplication = GetInstance("INetAuthApp") as INetFwAuthorizedApplication; netFwAuthorizedApplication.Name = applicationName; netFwAuthorizedApplication.ProcessImageFileName = applicationFilePath; netFwAuthorizedApplications.Add(netFwAuthorizedApplication); } } finally { if(netFwAuthorizedApplications != null) { netFwAuthorizedApplications = null; } if(netFwAuthorizedApplication != null) { netFwAuthorizedApplication = null; } } } #endregion #region 애플리케이션 방화벽 닫기 - CloseApplicationFirewall() /// <summary> /// 애플리케이션 방화벽 닫기 /// </summary> public static void CloseApplicationFirewall(string applicationName, string applicationFilePath) { INetFwAuthorizedApplications netFwAuthorizedApplications = null; try { if(FindApplication(applicationName) == true) { INetFwProfile netFwProfile = GetProfile(); netFwAuthorizedApplications = netFwProfile.AuthorizedApplications; netFwAuthorizedApplications.Remove(applicationFilePath); } } finally { if(netFwAuthorizedApplications != null) { netFwAuthorizedApplications = null; } } } #endregion #region 포트 방화벽 열기 - OpenPortFirewall(portName, port, protocol) /// <summary> /// 포트 방화벽 열기 /// </summary> /// <param name="portName">포트명</param> /// <param name="port">포트</param> /// <param name="protocol">프로토콜</param> public static void OpenPortFirewall(string portName, int port, NET_FW_IP_PROTOCOL_ protocol = NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_TCP) { INetFwOpenPorts netFwOpenPorts = null; INetFwOpenPort netFwOpenPort = null; try { if(!IsPortFound(port)) { INetFwProfile netFwProfile = GetProfile(); netFwOpenPorts = netFwProfile.GloballyOpenPorts; netFwOpenPort = GetInstance("INetOpenPort") as INetFwOpenPort; netFwOpenPort.Name = portName; netFwOpenPort.Port = port; netFwOpenPort.Protocol = protocol; netFwOpenPorts.Add(netFwOpenPort); } } finally { if(netFwOpenPorts != null) { netFwOpenPorts = null; } if(netFwOpenPort != null) { netFwOpenPort = null; } } } #endregion #region 포트 방화벽 닫기 - ClosePortFirewall(port, protocol) /// <summary> /// 포트 방화벽 닫기 /// </summary> /// <param name="port">포트</param> /// <param name="protocol">프로토콜</param> public static void ClosePortFirewall(int port, NET_FW_IP_PROTOCOL_ protocol = NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_TCP) { INetFwOpenPorts netFwOpenPorts = null; try { if(IsPortFound(port)) { INetFwProfile netFwProfile = GetProfile(); netFwOpenPorts = netFwProfile.GloballyOpenPorts; netFwOpenPorts.Remove(port, protocol); } } finally { if(netFwOpenPorts != null) { netFwOpenPorts = null; } } } #endregion //////////////////////////////////////////////////////////////////////////////// Private #region 애플리케이션 찾기 - FindApplication(applicationName) /// <summary> /// 애플리케이션 찾기 /// </summary> /// <param name="applicationName">애플리케이션명</param> /// <returns>처리 결과</returns> private static bool FindApplication(string applicationName) { bool result = false; Type programType = null; INetFwMgr netFwMgr = null; INetFwAuthorizedApplications netFwAuthorizedApplications = null; INetFwAuthorizedApplication netFwAuthorizedApplication = null; try { programType = Type.GetTypeFromProgID("HNetCfg.FwMgr"); netFwMgr = Activator.CreateInstance(programType) as INetFwMgr; if(netFwMgr.LocalPolicy.CurrentProfile.FirewallEnabled) { netFwAuthorizedApplications = netFwMgr.LocalPolicy.CurrentProfile.AuthorizedApplications; IEnumerator enumerator = netFwAuthorizedApplications.GetEnumerator(); while(enumerator.MoveNext()) { netFwAuthorizedApplication = enumerator.Current as INetFwAuthorizedApplication; if(netFwAuthorizedApplication.Name == applicationName) { result = true; break; } } } } finally { if(programType != null) { programType = null; } if(netFwMgr != null) { netFwMgr = null; } if(netFwAuthorizedApplications != null) { netFwAuthorizedApplications = null; } if(netFwAuthorizedApplication != null) { netFwAuthorizedApplication = null; } } return result; } #endregion #region 포트 발견 여부 구하기 - IsPortFound(port) /// <summary> /// 포트 발견 여부 구하기 /// </summary> /// <param name="port">포트</param> /// <returns>포트 발견 여부</returns> private static bool IsPortFound(int port) { bool result = false; INetFwOpenPorts netFwOpenPorts = null; Type programType = null; INetFwMgr netFwMgr = null; INetFwOpenPort netFwOpenPort = null; try { programType = Type.GetTypeFromProgID("HNetCfg.FwMgr"); netFwMgr = Activator.CreateInstance(programType) as INetFwMgr; netFwOpenPorts = netFwMgr.LocalPolicy.CurrentProfile.GloballyOpenPorts; IEnumerator portEnumerate = netFwOpenPorts.GetEnumerator(); while(portEnumerate.MoveNext()) { netFwOpenPort = portEnumerate.Current as INetFwOpenPort; if(netFwOpenPort.Port == port) { result = true; break; } } } finally { if(netFwOpenPorts != null) { netFwOpenPorts = null; } if(programType != null) { programType = null; } if(netFwMgr != null) { netFwMgr = null; } if(netFwOpenPort != null) { netFwOpenPort = null; } } return result; } #endregion #region 프로필 구하기 - GetProfile() /// <summary> /// 프로필 구하기 /// </summary> private static INetFwProfile GetProfile() { INetFwMgr netFwMgr = null; INetFwPolicy netFwPolicy = null; try { netFwMgr = GetInstance("INetFwMgr") as INetFwMgr; netFwPolicy = netFwMgr.LocalPolicy; return netFwPolicy.CurrentProfile; } finally { if(netFwMgr != null) { netFwMgr = null; } if(netFwPolicy != null) { netFwPolicy = null; } } } #endregion #region 인스턴스 구하기 - GetInstance(typeName) /// <summary> /// 인스턴스 구하기 /// </summary> /// <param name="typeName">타입명</param> /// <returns>인스턴스</returns> private static object GetInstance(string typeName) { Type type = null; switch(typeName) { case "INetFwMgr" : type = Type.GetTypeFromCLSID(new Guid("{304CE942-6E39-40D8-943A-B913C40C9CD4}")); return Activator.CreateInstance(type); case "INetAuthApp" : type = Type.GetTypeFromCLSID(new Guid("{EC9846B3-2762-4A6B-A214-6ACB603462D2}")); return Activator.CreateInstance(type); case "INetOpenPort" : type = Type.GetTypeFromCLSID(new Guid("{0CA545C6-37AD-4A6C-BF92-9F7610067EF5}")); return Activator.CreateInstance(type); default : return null; } } #endregion } } |
