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/*****************************************************************************

演示如何編程62616964757a686964616fe58685e5aeb931333335343935實(shí)現(xiàn)啟用禁用網(wǎng)卡

Mady

By ZwelL

2004.7.29

zwell@sohu.com

*****************************************************************************/

#include

#include

#include

#include

#pragma

comment(lib,”ws2_32.lib”)

#pragma

comment(lib,”setupapi.lib”)

BOOL DisableNetInterface(bool bStatus)

{

IN LPTSTR HardwareId

;

//硬件ComponentId，注冊(cè)表地址：system\currentcontrolset\class\{4D36E972-E325-11CE-BFC1-08002BE10318}\0000

HardwareId=”PCI\\VEN_10EC&DEV_8139&SUBSYS_813910EC” ;

DWORD NewState ;

if(bStatus)

{

NewState=DICS_DISABLE ;

//禁用

}

else

{

NewState=DICS_ENABLE ;

//啟用

}

//調(diào)用ddk函數(shù)，來禁用網(wǎng)卡

DWORD i,err ;

BOOL Found=false

;

HDEVINFO hDevInfo ;

SP_DEVINFO_DATA spDevInfoData

;

//訪問系統(tǒng)的硬件庫(kù)

hDevInfo=SetupDiGetClassDevs(NULL,”PCI”,NULL,DIGCF_ALLCLASSES|DIGCF_PRESENT);

if(hDevInfo==INVALID_HANDLE_VALUE)

{

printf(”訪問系統(tǒng)硬件出錯(cuò)！”);

return false ;

}

//枚舉硬件，獲得需要的接口

spDevInfoData.cbSize=sizeof(SP_DEVINFO_DATA);

for(i=0;SetupDiEnumDeviceInfo(hDevInfo,i,&spDevInfoData);i++)

{

DWORD DataT ;

LPTSTR p,buffer=NULL ;

DWORD

buffersize=0 ;

//獲得硬件的屬性值

while(!SetupDiGetDeviceRegistryProperty(

hDevInfo,

&spDevInfoData,

SPDRP_HARDWAREID,

&DataT,

(PBYTE)buffer,

buffersize,

&buffersize))

{

if(GetLastError()==ERROR_INVALID_DATA)

{

//不存在HardwareID. Continue.

break

;

}

else

if(GetLastError()==ERROR_INSUFFICIENT_BUFFER)

{

//buffer size不對(duì).

if(buffer)

LocalFree(buffer);

buffer=(char*)LocalAlloc(LPTR,buffersize);

}

else

{

//未知錯(cuò)誤

goto

cleanup_DeviceInfo ;

}

}

if(GetLastError()==ERROR_INVALID_DATA)

continue

;

//比較，找到和網(wǎng)卡ID相同的項(xiàng)

for(p=buffer;*p&&(p

{

if(!_tcscmp(HardwareId,p))

{

//找到網(wǎng)卡

Found=TRUE ;

break ;

}

}

if(buffer)

LocalFree(buffer);

//如果相等

if(Found)

{

//禁用該設(shè)備

SP_PROPCHANGE_PARAMS spPropChangeParams

;

spPropChangeParams.ClassInstallHeader.cbSize=sizeof(SP_CLASSINSTALL_HEADER);

spPropChangeParams.ClassInstallHeader.InstallFunction=DIF_PROPERTYCHANGE

;

spPropChangeParams.Scope=DICS_FLAG_GLOBAL ;

spPropChangeParams.StateChange=NewState ;

//禁用：DICS_DISABLE，DICS_ENABLE啟用

//

if(!SetupDiSetClassInstallParams(hDevInfo,&spDevInfoData,(SP_CLASSINSTALL_HEADER*)&spPropChangeParams,sizeof(spPropChangeParams)))

{

DWORD errorcode=GetLastError();

}

if(!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE,hDevInfo,&spDevInfoData))

{

DWORD errorcode=GetLastError();

}

switch(NewState)

{

case DICS_DISABLE

:

printf(”成功禁用網(wǎng)絡(luò)！”);

break ;

case

DICS_ENABLE :

printf(”成功啟用網(wǎng)絡(luò)！”);

break

;

}

break ;

}

}

//退出時(shí)，清理工作環(huán)境

cleanup_DeviceInfo

:

err=GetLastError();

SetupDiDestroyDeviceInfoList(hDevInfo);

SetLastError(err);

return true ;

}

void usage(char *exefile)

{

printf(”Usage:%s [-e|-d]\r\n”,

exefile);

printf(”\t-e: Enable the network card.\r\n”);

printf(”\t-d:

Disable the network card.\r\n”);

exit(0);

}

int main(int

argc,char**argv)

{

if(argc<2)

usage(argv[0]);

if(!DisableNetInterface((strstr(argv[1],”-d”)>0?TRUE:FALSE)))

printf(”對(duì)網(wǎng)卡操作失敗!”);

return 0;

}

//————————————————————————————————————

例子二:

#include

#include

#include

#include

#pragma comment (lib,”setupapi”)

#define UnknownDevice TEXT(””)

HDEVINFO hDevInfo = 0;

BOOL StateChange(DWORD NewState, DWORD SelectedItem,HDEVINFO

hDevInfo)

{

SP_PROPCHANGE_PARAMS PropChangeParams =

{sizeof(SP_CLASSINSTALL_HEADER)};

SP_DEVINFO_DATA DeviceInfoData =

{sizeof(SP_DEVINFO_DATA)};

HCURSOR hCursor;

//

// This may take a while :^(

//

hCursor =

SetCursor(LoadCursor(NULL, IDC_WAIT));

//

// Get a handle to the Selected Item.

//

if

(!SetupDiEnumDeviceInfo(hDevInfo,SelectedItem,&DeviceInfoData))

{

printf(”EnumDeviceInfo”);

return FALSE;

}

//

// Set the PropChangeParams structure.

//

PropChangeParams.ClassInstallHeader.InstallFunction = DIF_PROPERTYCHANGE;

PropChangeParams.Scope = DICS_FLAG_GLOBAL;

PropChangeParams.StateChange =

NewState;

if (!SetupDiSetClassInstallParams(hDevInfo,

&DeviceInfoData,

(SP_CLASSINSTALL_HEADER

*)&PropChangeParams,

sizeof(PropChangeParams)))

{

printf(”SetClassInstallParams”);

SetCursor(hCursor);

return FALSE;

}

//

// Call the ClassInstaller and perform the change.

//

if (!SetupDiCallClassInstaller(DIF_PROPERTYCHANGE,

hDevInfo,

&DeviceInfoData))

{

printf(”SetClassInstallParams”);

SetCursor(hCursor);

return TRUE;

}

SetCursor(hCursor);

return TRUE;

}

BOOL IsClassNet( GUID * ClassGuid )

{

#define MAX_NUM 50

HKEY hKeyClass;

LONG lRet;

char

ClassType[MAX_NUM];

char NetClass[MAX_NUM] = “Net”;

DWORD dwLength =

MAX_NUM,dwType = REG_SZ;

if (hKeyClass =

SetupDiOpenClassRegKey(ClassGuid,KEY_READ))

{

lRet =

RegQueryValueEx(hKeyClass,

TEXT(”Class”),

NULL,

&dwType, LPBYTE(ClassType), &dwLength);

RegCloseKey(hKeyClass);

if (lRet != ERROR_SUCCESS)

return FALSE;

if (!strcmp(ClassType,NetClass))

return TRUE;

}

return FALSE;

}

int main(int argc, char* argv[])

{

if (INVALID_HANDLE_VALUE ==

(hDevInfo =

SetupDiGetClassDevs(NULL,NULL,0,

DIGCF_PRESENT|DIGCF_ALLCLASSES)))

{

printf(”GetClassDevs”);

return 0;

}

DWORD i, Status, Problem;

SP_DEVINFO_DATA DeviceInfoData =

{sizeof(SP_DEVINFO_DATA)};

HKEY hKeyClass;

char DeviceName[200];

for

(i=0;SetupDiEnumDeviceInfo(hDevInfo,i,&DeviceInfoData);i++)

{

if

(IsClassNet(&DeviceInfoData.ClassGuid))

{

//printf(” the class’s

index is %d\n”,i);

//DICS_DISABLE–>禁用網(wǎng)絡(luò)

//DICS_ENABLE—>恢復(fù)網(wǎng)絡(luò)

if

(StateChange(DICS_ENABLE,i,hDevInfo))

printf(”.”);

//printf(”NetWork

%s”, (DICS_ENABLE)?”enabled”:”disabled”);

}

}

return 0;

}

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