防火墙（入站规则）C++修改方法 以解决服务器无法连接问题
为啥要关注防火墙
今天项目中的p2p直连遇到了问题。经过排查，发现充当服务器的一端进入listen状态后，另外的客户端一端connect失败。
错误码10060（超时）。
开始时怀疑客户端connect的时候，服务器还没准备好，或者哪里的代码有问题。然后下载了一个tcp测试工具。启动后发现
测试工具也无法正常直连。
然后发现原因是网络管理（防火墙）的问题。
即机器上的入站规则没有添加，导致连接的时候被防火墙屏蔽了。把“阻止”改成“允许”就ok了。
看了下已有的入站规则
如微信是已经写入防火墙的。看来应该有程序写入防火墙的方法。
搜索了下：
防火墙相关API目录：
https://docs.microsoft.com/en-us/windows/win32/api/netfw/
网上找到的示例代码（2010年前的代码，我电脑的win10无效）
#include "stdafx.h"
#include <windows.h>
#include <crtdbg.h>
#include <netfw.h>
#include <objbase.h>
#include <oleauto.h>
#include <stdio.h> #pragma comment( lib, "ole32.lib" )
#pragma comment( lib, "oleaut32.lib" )
HRESULT WindowsFirewallInitialize(OUT INetFwProfile** fwProfile)
{
HRESULT hr = S_OK;
INetFwMgr* fwMgr = NULL;
INetFwPolicy* fwPolicy = NULL; _ASSERT(fwProfile != NULL); *fwProfile = NULL; // Create an instance of the firewall settings manager.
hr = CoCreateInstance(
__uuidof(NetFwMgr),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(INetFwMgr),
(void**)&fwMgr
);
if (FAILED(hr))
{
printf("CoCreateInstance failed: 0x%08lx\n", hr);
goto error;
} // Retrieve the local firewall policy.
hr = fwMgr->get_LocalPolicy(&fwPolicy);
if (FAILED(hr))
{
printf("get_LocalPolicy failed: 0x%08lx\n", hr);
goto error;
} // Retrieve the firewall profile currently in effect.
hr = fwPolicy->get_CurrentProfile(fwProfile);
if (FAILED(hr))
{
printf("get_CurrentProfile failed: 0x%08lx\n", hr);
goto error;
} error: // Release the local firewall policy.
if (fwPolicy != NULL)
{
fwPolicy->Release();
} // Release the firewall settings manager.
if (fwMgr != NULL)
{
fwMgr->Release();
} return hr;
} void WindowsFirewallCleanup(IN INetFwProfile* fwProfile)
{
// Release the firewall profile.
if (fwProfile != NULL)
{
fwProfile->Release();
}
} HRESULT WindowsFirewallIsOn(IN INetFwProfile* fwProfile, OUT BOOL* fwOn)
{
HRESULT hr = S_OK;
VARIANT_BOOL fwEnabled; _ASSERT(fwProfile != NULL);
_ASSERT(fwOn != NULL); *fwOn = FALSE; // Get the current state of the firewall.
hr = fwProfile->get_FirewallEnabled(&fwEnabled);
if (FAILED(hr))
{
printf("get_FirewallEnabled failed: 0x%08lx\n", hr);
goto error;
} // Check to see if the firewall is on.
if (fwEnabled != VARIANT_FALSE)
{
*fwOn = TRUE;
printf("The firewall is on.\n");
}
else
{
printf("The firewall is off.\n");
} error: return hr;
} HRESULT WindowsFirewallTurnOn(IN INetFwProfile* fwProfile)
{
HRESULT hr = S_OK;
BOOL fwOn; _ASSERT(fwProfile != NULL); // Check to see if the firewall is off.
hr = WindowsFirewallIsOn(fwProfile, &fwOn);
if (FAILED(hr))
{
printf("WindowsFirewallIsOn failed: 0x%08lx\n", hr);
goto error;
} // If it is, turn it on.
if (!fwOn)
{
// Turn the firewall on.
hr = fwProfile->put_FirewallEnabled(VARIANT_TRUE);
if (FAILED(hr))
{
printf("put_FirewallEnabled failed: 0x%08lx\n", hr);
goto error;
} printf("The firewall is now on.\n");
} error: return hr;
} HRESULT WindowsFirewallTurnOff(IN INetFwProfile* fwProfile)
{
HRESULT hr = S_OK;
BOOL fwOn; _ASSERT(fwProfile != NULL); // Check to see if the firewall is on.
hr = WindowsFirewallIsOn(fwProfile, &fwOn);
if (FAILED(hr))
{
printf("WindowsFirewallIsOn failed: 0x%08lx\n", hr);
goto error;
} // If it is, turn it off.
if (fwOn)
{
// Turn the firewall off.
hr = fwProfile->put_FirewallEnabled(VARIANT_FALSE);
if (FAILED(hr))
{
printf("put_FirewallEnabled failed: 0x%08lx\n", hr);
goto error;
} printf("The firewall is now off.\n");
} error: return hr;
} HRESULT WindowsFirewallAppIsEnabled(
IN INetFwProfile* fwProfile,
IN const wchar_t* fwProcessImageFileName,
OUT BOOL* fwAppEnabled
)
{
HRESULT hr = S_OK;
BSTR fwBstrProcessImageFileName = NULL;
VARIANT_BOOL fwEnabled;
INetFwAuthorizedApplication* fwApp = NULL;
INetFwAuthorizedApplications* fwApps = NULL; _ASSERT(fwProfile != NULL);
_ASSERT(fwProcessImageFileName != NULL);
_ASSERT(fwAppEnabled != NULL); *fwAppEnabled = FALSE; // Retrieve the authorized application collection.
hr = fwProfile->get_AuthorizedApplications(&fwApps);
if (FAILED(hr))
{
printf("get_AuthorizedApplications failed: 0x%08lx\n", hr);
goto error;
} // Allocate a BSTR for the process image file name.
fwBstrProcessImageFileName = SysAllocString(fwProcessImageFileName);
if (SysStringLen(fwBstrProcessImageFileName) == )
{
hr = E_OUTOFMEMORY;
printf("SysAllocString failed: 0x%08lx\n", hr);
goto error;
} // Attempt to retrieve the authorized application.
hr = fwApps->Item(fwBstrProcessImageFileName, &fwApp);
if (SUCCEEDED(hr))
{
// Find out if the authorized application is enabled.
hr = fwApp->get_Enabled(&fwEnabled);
if (FAILED(hr))
{
printf("get_Enabled failed: 0x%08lx\n", hr);
goto error;
} if (fwEnabled != VARIANT_FALSE)
{
// The authorized application is enabled.
*fwAppEnabled = TRUE; printf(
"Authorized application %lS is enabled in the firewall.\n",
fwProcessImageFileName
);
}
else
{
printf(
"Authorized application %lS is disabled in the firewall.\n",
fwProcessImageFileName
);
}
}
else
{
// The authorized application was not in the collection.
hr = S_OK; printf(
"Authorized application %lS is disabled in the firewall.\n",
fwProcessImageFileName
);
} error: // Free the BSTR.
SysFreeString(fwBstrProcessImageFileName); // Release the authorized application instance.
if (fwApp != NULL)
{
fwApp->Release();
} // Release the authorized application collection.
if (fwApps != NULL)
{
fwApps->Release();
} return hr;
} HRESULT WindowsFirewallAddApp(
IN INetFwProfile* fwProfile,
IN const wchar_t* fwProcessImageFileName,
IN const wchar_t* fwName
)
{
HRESULT hr = S_OK;
BOOL fwAppEnabled;
BSTR fwBstrName = NULL;
BSTR fwBstrProcessImageFileName = NULL;
INetFwAuthorizedApplication* fwApp = NULL;
INetFwAuthorizedApplications* fwApps = NULL; _ASSERT(fwProfile != NULL);
_ASSERT(fwProcessImageFileName != NULL);
_ASSERT(fwName != NULL); // First check to see if the application is already authorized.
hr = WindowsFirewallAppIsEnabled(
fwProfile,
fwProcessImageFileName,
&fwAppEnabled
);
if (FAILED(hr))
{
printf("WindowsFirewallAppIsEnabled failed: 0x%08lx\n", hr);
goto error;
} // Only add the application if it isn't already authorized.
if (!fwAppEnabled)
{
// Retrieve the authorized application collection.
hr = fwProfile->get_AuthorizedApplications(&fwApps);
if (FAILED(hr))
{
printf("get_AuthorizedApplications failed: 0x%08lx\n", hr);
goto error;
} // Create an instance of an authorized application.
hr = CoCreateInstance(
__uuidof(NetFwAuthorizedApplication),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(INetFwAuthorizedApplication),
(void**)&fwApp
);
if (FAILED(hr))
{
printf("CoCreateInstance failed: 0x%08lx\n", hr);
goto error;
} // Allocate a BSTR for the process image file name.
fwBstrProcessImageFileName = SysAllocString(fwProcessImageFileName);
if (SysStringLen(fwBstrProcessImageFileName) == )
{
hr = E_OUTOFMEMORY;
printf("SysAllocString failed: 0x%08lx\n", hr);
goto error;
} // Set the process image file name.
hr = fwApp->put_ProcessImageFileName(fwBstrProcessImageFileName);
if (FAILED(hr))
{
printf("put_ProcessImageFileName failed: 0x%08lx\n", hr);
goto error;
} // Allocate a BSTR for the application friendly name.
fwBstrName = SysAllocString(fwName);
if (SysStringLen(fwBstrName) == )
{
hr = E_OUTOFMEMORY;
printf("SysAllocString failed: 0x%08lx\n", hr);
goto error;
} // Set the application friendly name.
hr = fwApp->put_Name(fwBstrName);
if (FAILED(hr))
{
printf("put_Name failed: 0x%08lx\n", hr);
goto error;
} // Add the application to the collection.
hr = fwApps->Add(fwApp);
if (FAILED(hr))
{
printf("Add failed: 0x%08lx\n", hr);
goto error;
} printf(
"Authorized application %lS is now enabled in the firewall.\n",
fwProcessImageFileName
);
} error: // Free the BSTRs.
SysFreeString(fwBstrName);
SysFreeString(fwBstrProcessImageFileName); // Release the authorized application instance.
if (fwApp != NULL)
{
fwApp->Release();
} // Release the authorized application collection.
if (fwApps != NULL)
{
fwApps->Release();
} return hr;
} HRESULT WindowsFirewallPortIsEnabled(
IN INetFwProfile* fwProfile,
IN LONG portNumber,
IN NET_FW_IP_PROTOCOL ipProtocol,
OUT BOOL* fwPortEnabled
)
{
HRESULT hr = S_OK;
VARIANT_BOOL fwEnabled;
INetFwOpenPort* fwOpenPort = NULL;
INetFwOpenPorts* fwOpenPorts = NULL; _ASSERT(fwProfile != NULL);
_ASSERT(fwPortEnabled != NULL); *fwPortEnabled = FALSE; // Retrieve the globally open ports collection.
hr = fwProfile->get_GloballyOpenPorts(&fwOpenPorts);
if (FAILED(hr))
{
printf("get_GloballyOpenPorts failed: 0x%08lx\n", hr);
goto error;
} // Attempt to retrieve the globally open port.
hr = fwOpenPorts->Item(portNumber, ipProtocol, &fwOpenPort);
if (SUCCEEDED(hr))
{
// Find out if the globally open port is enabled.
hr = fwOpenPort->get_Enabled(&fwEnabled);
if (FAILED(hr))
{
printf("get_Enabled failed: 0x%08lx\n", hr);
goto error;
} if (fwEnabled != VARIANT_FALSE)
{
// The globally open port is enabled.
*fwPortEnabled = TRUE; printf("Port %ld is open in the firewall.\n", portNumber);
}
else
{
printf("Port %ld is not open in the firewall.\n", portNumber);
}
}
else
{
// The globally open port was not in the collection.
hr = S_OK; printf("Port %ld is not open in the firewall.\n", portNumber);
} error: // Release the globally open port.
if (fwOpenPort != NULL)
{
fwOpenPort->Release();
} // Release the globally open ports collection.
if (fwOpenPorts != NULL)
{
fwOpenPorts->Release();
} return hr;
} HRESULT WindowsFirewallPortAdd(
IN INetFwProfile* fwProfile,
IN LONG portNumber,
IN NET_FW_IP_PROTOCOL ipProtocol,
IN const wchar_t* name
)
{
HRESULT hr = S_OK;
BOOL fwPortEnabled;
BSTR fwBstrName = NULL;
INetFwOpenPort* fwOpenPort = NULL;
INetFwOpenPorts* fwOpenPorts = NULL; _ASSERT(fwProfile != NULL);
_ASSERT(name != NULL); // First check to see if the port is already added.
hr = WindowsFirewallPortIsEnabled(
fwProfile,
portNumber,
ipProtocol,
&fwPortEnabled
);
if (FAILED(hr))
{
printf("WindowsFirewallPortIsEnabled failed: 0x%08lx\n", hr);
goto error;
} // Only add the port if it isn't already added.
if (!fwPortEnabled)
{
// Retrieve the collection of globally open ports.
hr = fwProfile->get_GloballyOpenPorts(&fwOpenPorts);
if (FAILED(hr))
{
printf("get_GloballyOpenPorts failed: 0x%08lx\n", hr);
goto error;
} // Create an instance of an open port.
hr = CoCreateInstance(
__uuidof(NetFwOpenPort),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(INetFwOpenPort),
(void**)&fwOpenPort
);
if (FAILED(hr))
{
printf("CoCreateInstance failed: 0x%08lx\n", hr);
goto error;
} // Set the port number.
hr = fwOpenPort->put_Port(portNumber);
if (FAILED(hr))
{
printf("put_Port failed: 0x%08lx\n", hr);
goto error;
} // Set the IP protocol.
hr = fwOpenPort->put_Protocol(ipProtocol);
if (FAILED(hr))
{
printf("put_Protocol failed: 0x%08lx\n", hr);
goto error;
} // Allocate a BSTR for the friendly name of the port.
fwBstrName = SysAllocString(name);
if (SysStringLen(fwBstrName) == )
{
hr = E_OUTOFMEMORY;
printf("SysAllocString failed: 0x%08lx\n", hr);
goto error;
} // Set the friendly name of the port.
hr = fwOpenPort->put_Name(fwBstrName);
if (FAILED(hr))
{
printf("put_Name failed: 0x%08lx\n", hr);
goto error;
} // Opens the port and adds it to the collection.
hr = fwOpenPorts->Add(fwOpenPort);
if (FAILED(hr))
{
printf("Add failed: 0x%08lx\n", hr);
goto error;
} printf("Port %ld is now open in the firewall.\n", portNumber);
} error: // Free the BSTR.
SysFreeString(fwBstrName); // Release the open port instance.
if (fwOpenPort != NULL)
{
fwOpenPort->Release();
} // Release the globally open ports collection.
if (fwOpenPorts != NULL)
{
fwOpenPorts->Release();
} return hr;
} int _tmain(int argc, _TCHAR* argv[])
{
HRESULT hr = S_OK;
HRESULT comInit = E_FAIL;
INetFwProfile* fwProfile = NULL; // Initialize COM.
comInit = CoInitializeEx(
,
COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE
); // Ignore RPC_E_CHANGED_MODE; this just means that COM has already been
// initialized with a different mode. Since we don't care what the mode is,
// we'll just use the existing mode.
if (comInit != RPC_E_CHANGED_MODE)
{
hr = comInit;
if (FAILED(hr))
{
printf("CoInitializeEx failed: 0x%08lx\n", hr);
goto error;
}
} // Retrieve the firewall profile currently in effect.
hr = WindowsFirewallInitialize(&fwProfile);
if (FAILED(hr))
{
printf("WindowsFirewallInitialize failed: 0x%08lx\n", hr);
goto error;
} // Add Windows Messenger to the authorized application collection.
hr = WindowsFirewallAddApp(
fwProfile,
L"E:\\代码\\个人测试代码\\My\\Debug\\FW.exe",
L"FW.EXE"
);
if (FAILED(hr))
{
printf("WindowsFirewallAddApp failed: 0x%08lx\n", hr);
goto error;
} // Add TCP::80 to list of globally open ports.
// hr = WindowsFirewallPortAdd(fwProfile, 80, NET_FW_IP_PROTOCOL_TCP, L"WWW");
// if (FAILED(hr))
// {
// printf("WindowsFirewallPortAdd failed: 0x%08lx\n", hr);
// goto error;
// } error: // Release the firewall profile.
WindowsFirewallCleanup(fwProfile); // Uninitialize COM.
if (SUCCEEDED(comInit))
{
CoUninitialize();
} return ; }
官网的适用于Win10的方法（得有管理员权限，否则add返回E_ACCESSDENIED The operation was aborted due to permissions issues）
#include <windows.h>
#include <stdio.h>
#include <netfw.h> #pragma comment( lib, "ole32.lib" )
#pragma comment( lib, "oleaut32.lib" ) // Forward declarations
HRESULT WFCOMInitialize(INetFwPolicy2** ppNetFwPolicy2); // Instantiate INetFwPolicy2
HRESULT WFCOMInitialize(INetFwPolicy2** ppNetFwPolicy2)
{
HRESULT hr = S_OK; hr = CoCreateInstance(
__uuidof(NetFwPolicy2),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(INetFwPolicy2),
(void**)ppNetFwPolicy2); if (FAILED(hr))
{
printf("CoCreateInstance for INetFwPolicy2 failed: 0x%08lx\n", hr);
goto Cleanup;
} Cleanup:
return hr;
} int _tmain(int argc, _TCHAR* argv[])
{
HRESULT hrComInit = S_OK;
HRESULT hr = S_OK; INetFwPolicy2 *pNetFwPolicy2 = NULL;
INetFwRules *pFwRules = NULL;
INetFwRule *pFwRule = NULL; long CurrentProfilesBitMask = ; BSTR bstrRuleName = SysAllocString(L"PER_INTERFACETYPE_RULE_TWO");
BSTR bstrRuleDescription = SysAllocString(L"Allow incoming network traffic over port 2400 coming from LAN interface type");
BSTR bstrRuleGroup = SysAllocString(L"Sample Rule Group");
BSTR bstrRuleLPorts = SysAllocString(L"2400-2450");
BSTR bstrRuleInterfaceType = SysAllocString(L"LAN"); // Initialize COM.
hrComInit = CoInitializeEx(
,
COINIT_APARTMENTTHREADED
); // Ignore RPC_E_CHANGED_MODE; this just means that COM has already been
// initialized with a different mode. Since we don't care what the mode is,
// we'll just use the existing mode.
if (hrComInit != RPC_E_CHANGED_MODE)
{
if (FAILED(hrComInit))
{
printf("CoInitializeEx failed: 0x%08lx\n", hrComInit);
goto Cleanup;
}
} // Retrieve INetFwPolicy2
hr = WFCOMInitialize(&pNetFwPolicy2);
if (FAILED(hr))
{
goto Cleanup;
} // Retrieve INetFwRules
hr = pNetFwPolicy2->get_Rules(&pFwRules);
if (FAILED(hr))
{
printf("get_Rules failed: 0x%08lx\n", hr);
goto Cleanup;
} // Retrieve Current Profiles bitmask
hr = pNetFwPolicy2->get_CurrentProfileTypes(&CurrentProfilesBitMask);
if (FAILED(hr))
{
printf("get_CurrentProfileTypes failed: 0x%08lx\n", hr);
goto Cleanup;
} // When possible we avoid adding firewall rules to the Public profile.
// If Public is currently active and it is not the only active profile, we remove it from the bitmask
if ((CurrentProfilesBitMask & NET_FW_PROFILE2_PUBLIC) &&
(CurrentProfilesBitMask != NET_FW_PROFILE2_PUBLIC))
{
CurrentProfilesBitMask ^= NET_FW_PROFILE2_PUBLIC;
} // Create a new Firewall Rule object.
hr = CoCreateInstance(
__uuidof(NetFwRule),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(INetFwRule),
(void**)&pFwRule);
if (FAILED(hr))
{
printf("CoCreateInstance for Firewall Rule failed: 0x%08lx\n", hr);
goto Cleanup;
} // Populate the Firewall Rule object
pFwRule->put_Name(bstrRuleName);
pFwRule->put_Description(bstrRuleDescription);
pFwRule->put_Protocol(NET_FW_IP_PROTOCOL_TCP);
pFwRule->put_LocalPorts(bstrRuleLPorts);
pFwRule->put_Grouping(bstrRuleGroup);
pFwRule->put_InterfaceTypes(bstrRuleInterfaceType);
pFwRule->put_Profiles(CurrentProfilesBitMask);
pFwRule->put_Action(NET_FW_ACTION_ALLOW);
pFwRule->put_Enabled(VARIANT_TRUE); // Add the Firewall Rule
hr = pFwRules->Add(pFwRule);
if (FAILED(hr))
{
printf("Firewall Rule Add failed: 0x%08lx\n", hr);
goto Cleanup;
} Cleanup: // Free BSTR's
SysFreeString(bstrRuleName);
SysFreeString(bstrRuleDescription);
SysFreeString(bstrRuleGroup);
SysFreeString(bstrRuleLPorts);
SysFreeString(bstrRuleInterfaceType); // Release the INetFwRule object
if (pFwRule != NULL)
{
pFwRule->Release();
} // Release the INetFwRules object
if (pFwRules != NULL)
{
pFwRules->Release();
} // Release the INetFwPolicy2 object
if (pNetFwPolicy2 != NULL)
{
pNetFwPolicy2->Release();
} // Uninitialize COM.
if (SUCCEEDED(hrComInit))
{
CoUninitialize();
} getchar();
return ; }
自己写了一个函数WriteFireWall支持各类操作系统、（麻烦帮我测试下xp，没找到机器。。）
update 2019-11-14 增加一个参数，如果存在是否不添加。true 不添加 false 添加
#include "stdafx.h"
#include <windows.h>
#include <stdio.h>
#include <netfw.h> #pragma warning(disable: 4996) //解决GetVersionEx 过期问题
void WriteFireWallXP(LPCTSTR ruleName, LPCTSTR appPath,bool NoopIfExist)
{
HRESULT hr = S_OK;
HRESULT comInit = E_FAIL;
INetFwProfile* fwProfile = NULL;
INetFwMgr* fwMgr = NULL;
INetFwPolicy* fwPolicy = NULL;
INetFwAuthorizedApplication* fwApp = NULL;
INetFwAuthorizedApplications* fwApps = NULL;
BSTR bstrRuleName = SysAllocString(ruleName);
BSTR bstrAppName = SysAllocString(appPath); // Initialize COM.
comInit = CoInitializeEx(
,
COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE
); // Ignore RPC_E_CHANGED_MODE; this just means that COM has already been
// initialized with a different mode. Since we don't care what the mode is,
// we'll just use the existing mode.
if (comInit != RPC_E_CHANGED_MODE)
{
hr = comInit;
if (FAILED(hr))
{
printf("CoInitializeEx failed: 0x%08lx\n", hr);
goto error;
}
} // Create an instance of the firewall settings manager.
hr = CoCreateInstance(
__uuidof(NetFwMgr),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(INetFwMgr),
(void**)&fwMgr
);
if (FAILED(hr))
{
printf("CoCreateInstance failed: 0x%08lx\n", hr);
goto error;
}
// Retrieve the local firewall policy.
hr = fwMgr->get_LocalPolicy(&fwPolicy);
if (FAILED(hr))
{
printf("get_LocalPolicy failed: 0x%08lx\n", hr);
goto error;
} // Retrieve the firewall profile currently in effect.
hr = fwPolicy->get_CurrentProfile(&fwProfile);
if (FAILED(hr))
{
printf("get_CurrentProfile failed: 0x%08lx\n", hr);
goto error;
} // Retrieve the authorized application collection.
hr = fwProfile->get_AuthorizedApplications(&fwApps);
if (FAILED(hr))
{
printf("get_AuthorizedApplications failed: 0x%08lx\n", hr);
goto error;
} //check if exist
if (NoopIfExist)
{
hr = fwApps->Item(bstrRuleName, &fwApp);
if (hr == S_OK)
{
printf("item is exist");
goto error;
}
} // Create an instance of an authorized application.
hr = CoCreateInstance(
__uuidof(NetFwAuthorizedApplication),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(INetFwAuthorizedApplication),
(void**)&fwApp
);
if (FAILED(hr))
{
printf("CoCreateInstance failed: 0x%08lx\n", hr);
goto error;
}
// Set the process image file name.
hr = fwApp->put_ProcessImageFileName(bstrAppName);
if (FAILED(hr))
{
printf("put_ProcessImageFileName failed: 0x%08lx\n", hr);
goto error;
} // Set the application friendly name.
hr = fwApp->put_Name(bstrRuleName);
if (FAILED(hr))
{
printf("put_Name failed: 0x%08lx\n", hr);
goto error;
} // Add the application to the collection.
hr = fwApps->Add(fwApp);
if (FAILED(hr))
{
printf("Add failed: 0x%08lx\n", hr);
goto error;
} error:
// Release the local firewall policy.
if (fwPolicy != NULL)
{
fwPolicy->Release();
} // Release the firewall settings manager.
if (fwMgr != NULL)
{
fwMgr->Release();
}
SysFreeString(bstrRuleName);
SysFreeString(bstrAppName);
if (fwApp != NULL)
{
fwApp->Release();
} // Release the authorized application collection.
if (fwApps != NULL)
{
fwApps->Release();
} if (fwProfile != NULL)
{
fwProfile->Release();
} // Uninitialize COM.
if (SUCCEEDED(comInit))
{
CoUninitialize();
}
} //写入防火墙，最低支持版本Windows Vista
void WriteFireWallOverXP(LPCTSTR ruleName, LPCTSTR appPath, bool NoopIfExist)
{
HRESULT hrComInit = S_OK;
HRESULT hr = S_OK; INetFwPolicy2 *pNetFwPolicy2 = NULL;
INetFwRules *pFwRules = NULL;
INetFwRule *pFwRule = NULL; BSTR bstrRuleName = SysAllocString(ruleName);
BSTR bstrAppName = SysAllocString(appPath); // Initialize COM.
hrComInit = CoInitializeEx(
,
COINIT_APARTMENTTHREADED
); // Ignore RPC_E_CHANGED_MODE; this just means that COM has already been
// initialized with a different mode. Since we don't care what the mode is,
// we'll just use the existing mode.
if (hrComInit != RPC_E_CHANGED_MODE)
{
if (FAILED(hrComInit))
{
printf("CoInitializeEx failed: 0x%08lx\n", hrComInit);
goto Cleanup;
}
} // Retrieve INetFwPolicy2
hr = CoCreateInstance(
__uuidof(NetFwPolicy2),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(INetFwPolicy2),
(void**)&pNetFwPolicy2); if (FAILED(hr))
{
printf("CoCreateInstance for INetFwPolicy2 failed: 0x%08lx\n", hr);
goto Cleanup;
} // Retrieve INetFwRules
hr = pNetFwPolicy2->get_Rules(&pFwRules);
if (FAILED(hr))
{
printf("get_Rules failed: 0x%08lx\n", hr);
goto Cleanup;
} //see if existed
if (NoopIfExist)
{
hr = pFwRules->Item(bstrRuleName, &pFwRule);
if (hr == S_OK)
{
printf("Item existed", hr);
goto Cleanup;
}
} // Create a new Firewall Rule object.
hr = CoCreateInstance(
__uuidof(NetFwRule),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(INetFwRule),
(void**)&pFwRule);
if (FAILED(hr))
{
printf("CoCreateInstance for Firewall Rule failed: 0x%08lx\n", hr);
goto Cleanup;
} // Populate the Firewall Rule object pFwRule->put_Name(bstrRuleName);
pFwRule->put_ApplicationName(bstrAppName);
pFwRule->put_Action(NET_FW_ACTION_ALLOW);
pFwRule->put_Enabled(VARIANT_TRUE); // Add the Firewall Rule
hr = pFwRules->Add(pFwRule);
if (FAILED(hr))
{
printf("Firewall Rule Add failed: 0x%08lx\n", hr);
goto Cleanup;
} Cleanup: // Free BSTR's
SysFreeString(bstrRuleName);
SysFreeString(bstrAppName); // Release the INetFwRule object
if (pFwRule != NULL)
{
pFwRule->Release();
} // Release the INetFwRules object
if (pFwRules != NULL)
{
pFwRules->Release();
} // Release the INetFwPolicy2 object
if (pNetFwPolicy2 != NULL)
{
pNetFwPolicy2->Release();
} // Uninitialize COM.
if (SUCCEEDED(hrComInit))
{
CoUninitialize();
}
} void WriteFireWall(LPCTSTR ruleName, LPCTSTR appPath,bool NoopIfExist)
{
//check windows version
OSVERSIONINFO ovi = { sizeof(OSVERSIONINFO) };
if (!::GetVersionEx(&ovi))
return;
int version = ovi.dwMajorVersion * + ovi.dwMinorVersion;
if (version < ) //600为vista
{
WriteFireWallXP(ruleName, appPath, NoopIfExist);
}
else
{
WriteFireWallOverXP(ruleName, appPath, NoopIfExist);
}
} int _tmain(int argc, _TCHAR* argv[])
{ WriteFireWall(L"testfirewall", L"d:\\test.text",true);
getchar();
return ; }
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