詳細介紹了嵌入式L inux 編譯環(huán)境的架構(gòu), 討論了如何在L inux2. 4 環(huán)境下實現(xiàn)IP 安全協(xié)議, 實現(xiàn)數(shù)據(jù)安全傳輸, 通過利用L inux 實現(xiàn)防火墻所提供的5 個鉤子函數(shù)掛載點, 將安全模塊嵌入到L inux 系統(tǒng)中, 從而完成L inux2. 4 對于IP 安全協(xié)議的支持. 測試結(jié)果表明: 這種方式完全能夠?qū)崿F(xiàn)L inux 對IP 安全協(xié)議的支持, 很好地實現(xiàn)數(shù)據(jù)安全傳輸.
關(guān)鍵詞　嵌入式L inux; 安全協(xié)議; 防火墻; 鉤子函數(shù)Abstract　Th is paper int roduces how to build the environment of embedded L inux comp lier and how to imp lement
IP security in o rder to keep data′s t ransit ion safety on L inux2. 4. It p ropo ses to use five hook funct ions of netfilter to embed our IP security modules into L inux operat ion system. The result of test show that L inux can friendly suppo rt the IP security to finish data′s safety t ransit ion.
Keywords　embedded L inux; IP sec; netfilter; hook funct ion
Tian Yuchuan　M aster′s Candidate , Co llege of Computer Science , SCU FN , W uhan 430074,Ch ina