驱动的加载与卸载例程(C++/C)

//需要包含的头文件
#include "winsvc.h"

//====================全局变量
SC_HANDLE m_ScmHandle;
SC_HANDLE m_HerService;

/*函数功能*/ ----第一步
//打开SCM管理器 (获取SCM句柄) - OpenSCManagerA
//创建驱动服务  (获得服务句柄,如果服务存在,此步则变成打开服务)  CreateServiceA
BOOL MyLoadDriver(PCHAR SzSysFileName,PCHAR SzSysFilePath)
{
    m_ScmHandle = NULL;
    m_HerService = NULL;
    //打开SCM管理器 (获取SCM句柄) - OpenSCManagerA
    m_ScmHandle = OpenSCManagerA(NULL,NULL,SC_MANAGER_ALL_ACCESS);
    if (m_ScmHandle == NULL)
    {
        AfxMessageBox("OpenSCManagerA ERROR");
        m_loadAddDriverError = GetLastError();
        return FALSE;
    }

    m_HerService = CreateServiceA(m_ScmHandle,SzSysFileName,SzSysFileName,SERVICE_ALL_ACCESS,SERVICE_KERNEL_DRIVER,SERVICE_DEMAND_START,SERVICE_ERROR_NORMAL,SzSysFilePath,NULL,NULL,NULL,NULL,NULL);

    if (m_HerService == NULL)
    {
    
        m_loadAddDriverError = GetLastError();
        if ( m_loadAddDriverError == ERROR_SERVICE_EXISTS)
        {
        
            m_HerService = OpenService(m_ScmHandle,SzSysFileName,SERVICE_ALL_ACCESS);

            if (m_HerService == NULL)
            {
                CloseServiceHandle(m_ScmHandle);
                return FALSE;
            }
        }else
        {
            CloseServiceHandle(m_ScmHandle);
            return FALSE;
        }
        
    }
    return TRUE;
}

//   名称:StartDriver
//   功能:开启服务,输出到程序
//   
BOOL CProcessDlg::StartDriver(void)
{
    if (m_HerService == NULL)
    {
        AfxMessageBox("m_HerService [Null Handle]");
        return FALSE;
    }
    if (!StartService(m_HerService,NULL,NULL))
    {
        m_loadAddDriverError = GetLastError();
        CString Str;
        Str.Format("Error:%d\n",m_loadAddDriverError);
        m_outputdrivertext.SetWindowTextA(Str);
        return FALSE;
    }
    m_outputdrivertext.SetWindowTextA("Start Success");
    return 0;
}

//  关闭驱动服务
BOOL CProcessDlg::StopSerVice(void)
{
    SERVICE_STATUS ss;
    if (!ControlService(m_HerService,SERVICE_CONTROL_STOP,&ss))
    {
        m_loadAddDriverError = GetLastError();
        m_outputdrivertext.SetWindowTextA("停止服务失败!");
    }
    m_outputdrivertext.SetWindowTextA("Stop Success");
    return 0;
}

//最后在来一个卸载
BOOL CProcessDlg::Remove(void)
{
    CloseServiceHandle(m_HerService);
    if (!DeleteService(m_HerService))
    {
        m_loadAddDriverError = GetLastError();
        m_outputdrivertext.SetWindowTextA("驱动卸载失败!");
    }
    m_outputdrivertext.SetWindowTextA("Delete Success");
    return 0;
}

驱动加载主要流程
//打开SCM管理器 (获取SCM句柄) - OpenSCManagerA
//创建驱动服务  (获得服务句柄,如果服务存在,此步则变成打开服务)CreateServiceA
//启动服务 - StartServiceA
//停止服务 - ControlService
//卸载服务 - DeleteService
//关闭服务
//关闭服务句柄