【正文】 ClearHook IOCTL 示清除以前注冊的過濾器鉤子 。 //過濾規(guī)則 CFilterList *pNext。由于是鏈表結構存儲，所以清除過濾列表時，只需要遍歷 g_pHeader 指向的鏈表，依次釋放添加規(guī)則時申請的內存即可。過濾函數(shù)實現(xiàn)大致流程如下： 第 11 頁 共 20 頁 圖 5 客戶端應用程序 用戶程序的核心實現(xiàn)就是使用 CDriver 類向驅動程序發(fā)送幾個設備控制代碼（ START_IP_HOOK(安裝過濾鉤子 )、 STOP_IP_HOOK（清除過濾鉤子）、 ADD_FILTER（安裝過濾規(guī)則）、 CLEAR_FILTER(卸載過濾規(guī)則 )）。首先建立一個 MFC 的界面工程。 圖 4. 主程序界面 當用戶單擊“添加 規(guī)則 ”時彈出 添加 規(guī)則 窗口 ， 如圖 5。在“動作”一欄里，用戶可以選者“丟棄”或者“放行”來決定數(shù)據(jù)包如何處理。 第 14 頁 共 20 頁 視圖類又從 CWnd 類派生。 // IP 過濾驅動指針 CDriver* m_pFilterDrv。 // 啟動 IP 過濾鉤子驅動 char szPath[256]。 m_pFilterDrv = new CDriver(szPath, DrvFltIp)。 } CMainFrame::~CMainFrame() 第 15 頁 共 20 頁 { if(m_bStarted) m_pFilterDrvIoControl(STOP_IP_HOOK, NULL, 0, NULL, 0)。以下是用戶單擊開始和停止按鈕時程序調用的函數(shù)： void CMainFrame::OnFileStart() // 開始過濾 { if(m_bStarted) return。 } void CMainFrame::OnFileStop() // 停止過濾 { if(m_bStarted) { // 通知 IP 過濾驅動停止過濾 m_pFilterDrvIoControl(STOP_IP_HOOK, NULL, 0, NULL, 0)。 第 16 頁 共 20 頁 // 從文檔對象取出數(shù)據(jù)，安裝過濾條件 int nRet。 i++) { // 轉換字節(jié)順序 CIPFilter pf。 = (USHORT)htonl(pDocm_rules[i].sourcePort)。 if(nRet == 1) { AfxMessageBox(安裝過濾條件出錯！ )。以下是用戶單擊保存過濾規(guī)則和加載過濾規(guī)則時框架程序調用的函數(shù)： void CMainFrame::OnFileConserve() // 用戶單擊保存過濾規(guī)則 { CFirewallDoc* pDoc = (CFirewallDoc*)GetActiveDocument()； if(pDocm_nRules == 0) { AfxMessageBox(沒有規(guī)則！ )。 // 寫入文件 CFile file。pDocm_rules[i], sizeof(CIPFilter))。但通過測試可以看到，當用戶添加了較多的過濾規(guī)則并進行數(shù)據(jù)過濾時，上網速度會變慢，所以還需要對過濾規(guī)則對比算法 做 一些改進。 通過本次課題的研究 ， 對 Windows 環(huán)境下的數(shù)據(jù)包截獲方法有了一定的了解 ， 對 Windows 驅動 編程和軟件開發(fā)的各項流程 也 有了更進一步的認識，并鞏固了所學的知識。 [4] 朱雁輝 ,朱雁冰 著 Windows 防火墻與網絡封包截獲技術 [M].北京： 電子 工業(yè)出版社2020。 第 19 頁 共 20 頁 致 謝 首先 感謝我的指導教師。我也感謝我的同組同學和同班同學在這次畢業(yè)設計中給我的支持和幫助，特別感謝同學為我提供電腦，讓我順利完成畢業(yè)設計和論文 。除非另有說明，本文的工作是原始性工作。 （ 4）學?？稍试S學位論文被查閱或借閱 。 the fly sat upon the axletree of the chariot wheel, and said. What a dust do I raise? So are there some vain persons, that whatsoever goeths indeed! They could tell us something worth hearing, if they only knew how to talk. It39。t know what that is! The journey of the witches on broomsticks is well enough known that journey is taken on St. John39。 for all bravery stands upon parisons. They must needs be violent, to make good their own vaunts. Neither can they be secret, and therefore not effectual。 as if a man that negotiates between two princes, to draw them to join in a war against the third, doth e xtol the forces of either of them above measure, the one to the other: and sometimes, he that deals between man and man, raiseth his own credit with both by pretending greater interest than he hath in either. And in these, and the like kinds, it often falls out that somewhat is produced of nothing: for lies are sufficient to breed opinion, and opinion brings on substance. In military manders and soldiers, vainglory is an essential point。 and virtue was never so beholding to human nature, as it received his due at the second hand. Neither had the fame of Cicero, Seneca, Plinius Secundus, borne her age so well, if it had not been joined with some vanity in themselves: like unto varnish, that makes sealings not only shine, but last But all this while, when I speak of vainglory, I mean not of that property, that Tacitus doth attribute to Mucianus。 In m ending another, you do your self right。 the idols of parasites。 for these are the offences which are and have been, and willever be , the source of all the aforesaid evils. The greatest of themare excesses and insolences of youth, and are offences against thegreatest when they are done against religion。 and the f ifth kind is when the violation ofthe civil rights of an individual demands reparation. There shouldbe a mon law embrac ing all these cases. For we have already said ingeneral terms what shall be the punishment of sacrilege, whetherfraudulent or violent, and now we have to determine what is to bethe punishment of those w ho speak or act insolently toward the G first we must give them an admonition which may be in thefollowing terms:No one who in obedience to the laws believed thatthere were Gods, ever intentionally did any unholy act, or uttered anyunlawf ul word。 and in the second degreegreat when they are mitted against private rites and sepulchres,and in the third degree (not to repeat the acts formerly mentioned),when insults are offered to parents。s goods, neither shall heuse anything which is his neighbour39。 if he be superior, if he be not to be mended, you much less. Glorious men are the scorn of wise men。 which is to be liberal of praise and mendation to others, in that wherein a man\39。 and those mat are of solid and sober natures have more of the ballast, than of the sail. In fame of learning, the flight w ill be slow, without some feathers of ostentation. Q ui de contenm enda gloria libros scribunt, nomen suum inscribunt. Socrates, Aristotle, Galen, were men firil of ostentation. Certainly vainglory helpeth to perpetuate a man\39。 beaucoup de bruit, peu de fruit: much bruit, little fruit Yet certainly there is use of this quality, in civil affairs. Where there is an opinion, and fame to be created, either of virtue, or greatness, these men are good trumpeters. Again, as Titus Livius noteth, in the case of Antiochus, and the Aetolians。 but we have a wild journey, also which is national and modern, and that is the journey to Amack on the night of the New Year. All indifferent poets and poetesses, musicians, newspaper writers, and artistic notabilities, I mean those who are no good, ride in the New Year39。s eve I was reading the book, and had lost myself in it so pletely, that I fot my usual New Year39。 除非另有科研合同和其他法律文書的制約，本論文的科研成果屬于成都信息工程學院。 （ 2）學校可以采用影印、縮印或其他復制方式保存學位論文。 最后，要感謝的是在百忙之中抽出時間來審閱我的論文的各位老師，謝謝您們！ 作者簡介：