{"id":3359,"date":"2017-06-16T23:59:20","date_gmt":"2017-06-16T15:59:20","guid":{"rendered":"https:\/\/ixyzero.com\/blog\/?p=3359"},"modified":"2017-06-16T23:59:20","modified_gmt":"2017-06-16T15:59:20","slug":"lsm%e5%ad%a6%e4%b9%a0","status":"publish","type":"post","link":"https:\/\/ixyzero.com\/blog\/archives\/3359.html","title":{"rendered":"LSM\u5b66\u4e60"},"content":{"rendered":"<p>=Start=<\/p>\n<h4 id=\"LSM\u5b66\u4e60-\u7f18\u7531\uff1a\">\u7f18\u7531\uff1a<\/h4>\n<p>\u6211\u5bf9LSM\u7684\u5b66\u4e60\uff0c\u4e3b\u8981\u662f\u901a\u8fc7Chris Wright\u548cCrispin Cowan\u57282002\u5e74\u5de6\u53f3\u53d1\u8868\u7684\u4e00\u7bc7\u300c<a class=\"external-link\" href=\"http:\/\/namei.org\/presentations\/lsm-usenix.pdf\" rel=\"nofollow\">Linux Security Modules: General Security Support for the Linux Kernel<\/a>\u300d\u6587\u6863\u6765\u8fdb\u884c\u7684\uff0c\u5728\u6b64\u8fc7\u7a0b\u4e2d\u4e5f\u53c2\u8003\u4e86\u300c<a class=\"external-link\" href=\"http:\/\/www.cnblogs.com\/LittleHann\/p\/4134939.html\" rel=\"nofollow\">Linux LSM(Linux Security Modules) Hook Technology<\/a>\u300d\u548c\u300c<a class=\"external-link\" href=\"https:\/\/www.ibm.com\/developerworks\/cn\/linux\/l-lsm\/part1\/index.html\" rel=\"nofollow\">\u5982\u4f55\u589e\u5f3a Linux \u7cfb\u7edf\u7684\u5b89\u5168\u6027\uff0c\u7b2c\u4e00\u90e8\u5206: Linux \u5b89\u5168\u6a21\u5757\uff08LSM\uff09\u7b80\u4ecb<\/a>\u300d\u7684\u5185\u5bb9\uff0c\u8f83\u4e3a\u6df1\u5165\u7684\u5b66\u4e60\u4e86\u4e00\u4e0bLSM\uff0c\u5728\u6b64\u8bb0\u5f55\u4e00\u4e0b\uff0c\u65b9\u4fbf\u4ee5\u540e\u53c2\u8003\u3002<\/p>\n<h4 id=\"LSM\u5b66\u4e60-\u6b63\u6587\uff1a\">\u6b63\u6587\uff1a<\/h4>\n<h5 id=\"LSM\u5b66\u4e60-\u53c2\u8003\u89e3\u7b54\uff1a\">\u53c2\u8003\u89e3\u7b54\uff1a<\/h5>\n<h6 id=\"LSM\u5b66\u4e60-1\uff0eLSM\u76f8\u5173\u80cc\u666f\u4ecb\u7ecd\uff1a\u4e3a\u4ec0\u4e48\u548c\u662f\u4ec0\u4e48\">1\uff0eLSM\u76f8\u5173\u80cc\u666f\u4ecb\u7ecd\uff1a\u4e3a\u4ec0\u4e48\u548c\u662f\u4ec0\u4e48<\/h6>\n<p>\u8fd1\u5e74\u6765Linux\u7cfb\u7edf\u7531\u4e8e\u5176\u51fa\u8272\u7684\u6027\u80fd\u548c\u7a33\u5b9a\u6027\uff0c\u5f00\u653e\u6e90\u4ee3\u7801\u7279\u6027\u5e26\u6765\u7684\u7075\u6d3b\u6027\u548c\u53ef\u6269\u5c55\u6027\uff0c\u4ee5\u53ca\u8f83\u4f4e\u5ec9\u7684\u6210\u672c\uff0c\u800c\u53d7\u5230\u8ba1\u7b97\u673a\u5de5\u4e1a\u754c\u7684\u5e7f\u6cdb\u5173\u6ce8\u548c\u5e94\u7528\u3002\u4f46\u5728\u5b89\u5168\u6027\u65b9\u9762\uff0cLinux\u5185\u6838\u53ea\u63d0\u4f9b\u4e86\u7ecf\u5178\u7684UNIX\u81ea\u4e3b\u8bbf\u95ee\u63a7\u5236\uff08root\u7528\u6237\uff0c\u7528\u6237ID\uff0c\u6a21\u5f0f\u4f4d\u5b89\u5168\u673a\u5236\uff09\uff0c\u4ee5\u53ca\u90e8\u5206\u7684\u652f\u6301\u4e86POSIX.1e\u6807\u51c6\u8349\u6848\u4e2d\u7684capabilities\u5b89\u5168\u673a\u5236\uff0c\u8fd9\u5bf9\u4e8eLinux\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u662f\u4e0d\u8db3\u591f\u7684\uff0c\u5f71\u54cd\u4e86Linux\u7cfb\u7edf\u7684\u8fdb\u4e00\u6b65\u53d1\u5c55\u548c\u66f4\u5e7f\u6cdb\u7684\u5e94\u7528\u3002<span style=\"color: #ff0000;\"><strong>\u5373\uff1a\u73b0\u6709Linux\u7cfb\u7edf\u7684\u5b89\u5168\u673a\u5236\u5b58\u5728\u4e0d\u8db3\u3002<\/strong><\/span><\/p>\n<p>\u6709\u5f88\u591a\u5b89\u5168\u8bbf\u95ee\u63a7\u5236\u6a21\u578b\u548c\u6846\u67b6\u5df2\u7ecf\u88ab\u7814\u7a76\u548c\u5f00\u53d1\u51fa\u6765\uff0c\u7528\u4ee5\u589e\u5f3aLinux\u7cfb\u7edf\u7684\u5b89\u5168\u6027\uff0c\u6bd4\u8f83\u77e5\u540d\u7684 SELinux\uff0cDTE\uff0c\u4ee5\u53ca LIDS 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#ff0000;\">\u5373\uff1aLinus\u4e5f\u540c\u610fLinux\u5185\u6838\u9700\u8981\u6709\u4e00\u4e2a\u901a\u7528\u7684\u5b89\u5168\u8bbf\u95ee\u63a7\u5236\u6846\u67b6\u3002<\/span><\/p>\n<p>LSM\uff09\u662fLinux\u5185\u6838\u7684\u4e00\u4e2a\u8f7b\u91cf\u7ea7\u901a\u7528\u8bbf\u95ee\u63a7\u5236\u6846\u67b6\u3002\u5b83\u4f7f\u5f97\u5404\u79cd\u4e0d\u540c\u7684\u5b89\u5168\u8bbf\u95ee\u63a7\u5236\u6a21\u578b\u80fd\u591f\u4ee5Linux\u53ef\u52a0\u8f7d\u5185\u6838\u6a21\u5757\u7684\u5f62\u5f0f\u5b9e\u73b0\u51fa\u6765\uff0c\u7528\u6237\u53ef\u4ee5\u6839\u636e\u5176\u9700\u6c42\u9009\u62e9\u9002\u5408\u7684\u5b89\u5168\u6a21\u5757\u52a0\u8f7d\u5230Linux\u5185\u6838\u4e2d\uff0c\u4ece\u800c\u5927\u5927\u63d0\u9ad8\u4e86Linux\u5b89\u5168\u8bbf\u95ee\u63a7\u5236\u673a\u5236\u7684\u7075\u6d3b\u6027\u548c\u6613\u7528\u6027\u3002\u76ee\u524d\u5df2\u7ecf\u6709\u5f88\u591a\u8457\u540d\u7684\u589e\u5f3a\u8bbf\u95ee\u63a7\u5236\u7cfb\u7edf\u79fb\u690d\u5230LSM\uff09\u4e0a\u5b9e\u73b0\uff0c\u5305\u62ecPOSIX.1e capabilities\u3001SELinux\u3001DTE\uff0c\u4ee5\u53ca LIDS \u7b49\u7b49\u3002<strong><span style=\"color: #ff0000;\">\u5373\uff1aLSM\u53ea\u662f\u4e00\u4e2a\u6846\u67b6\uff0c\u7528\u6237\u53ef\u6839\u636e\u5b9e\u9645\u9700\u8981\u52a8\u6001\u52a0\u8f7d\u5404\u79cd\u5177\u4f53\u7684\u5b89\u5168\u589e\u5f3a\u529f\u80fd\u6a21\u5757\u3002<\/span><\/strong><\/p>\n<h6 id=\"LSM\u5b66\u4e60-2\uff0eLSM\u8bbe\u8ba1\u601d\u60f3\u4ecb\u7ecd\uff1a\u5f97\u8ba9\u4e24\u65b9\u9762\u90fd\u6ee1\u610f\">2\uff0eLSM\u8bbe\u8ba1\u601d\u60f3\u4ecb\u7ecd\uff1a\u5f97\u8ba9\u4e24\u65b9\u9762\u90fd\u6ee1\u610f<\/h6>\n<p><span style=\"color: #ff0000;\">LSM\u7684\u8bbe\u8ba1\u5fc5\u987b\u5c3d\u91cf\u6ee1\u8db3\u4e24\u65b9\u9762\u4eba\u7684\u8981\u6c42\uff1a\u8ba9\u4e0d\u9700\u8981\u5b83\u7684\u4eba\u5c3d\u53ef\u80fd\u5c11\u7684\u56e0\u6b64\u53d7\u5230\u5f71\u54cd\uff1b\u540c\u65f6\u8ba9\u9700\u8981\u5b83\u7684\u4eba\u56e0\u6b64\u5f97\u5230\u6709\u7528\u548c\u9ad8\u6548\u7684\u529f\u80fd\u3002<\/span><\/p>\n<p>\u4e00\u65b9\u9762\uff0c\u4ee5Linus Torvalds\u4e3a\u4ee3\u8868\u7684\u5185\u6838\u5f00\u53d1\u4eba\u5458\u5bf9LSM\u63d0\u51fa\u4e86\u4e09\u70b9\u8981\u6c42\uff1a<\/p>\n<ul>\n<li>\u771f\u6b63\u7684\u901a\u7528\uff0c\u5f53\u4f7f\u7528\u4e00\u4e2a\u4e0d\u540c\u7684\u5b89\u5168\u6a21\u578b\u7684\u65f6\u5019\uff0c\u53ea\u9700\u8981\u52a0\u8f7d\u4e00\u4e2a\u4e0d\u540c\u7684\u5185\u6838\u6a21\u5757<\/li>\n<li>\u6982\u5ff5\u4e0a\u7b80\u5355\uff0c\u5bf9Linux\u5185\u6838\u5f71\u54cd\u6700\u5c0f\uff0c\u9ad8\u6548<\/li>\n<li>\u80fd\u591f\u652f\u6301\u73b0\u6709\u7684POSIX.1e capabilities\u903b\u8f91\uff0c\u4f5c\u4e3a\u4e00\u4e2a\u53ef\u9009\u7684\u5b89\u5168\u6a21\u5757<\/li>\n<\/ul>\n<p>\u53e6\u4e00\u65b9\u9762\uff0c\u5404\u79cd\u4e0d\u540c\u7684Linux\u5b89\u5168\u589e\u5f3a\u7cfb\u7edf\u5bf9LSM\u63d0\u51fa\u7684\u8981\u6c42\u662f\uff1a\u80fd\u591f\u5141\u8bb8\u5b83\u4eec\u4ee5\u53ef\u52a0\u8f7d\u5185\u6838\u6a21\u5757\u7684\u5f62\u5f0f\u91cd\u65b0\u5b9e\u73b0\u5176\u5b89\u5168\u529f\u80fd\uff0c\u5e76\u4e14\u4e0d\u4f1a\u5728\u5b89\u5168\u6027\u65b9\u9762\u5e26\u6765\u660e\u663e\u7684\u635f\u5931\uff0c\u4e5f\u4e0d\u4f1a\u5e26\u6765\u989d\u5916\u7684\u7cfb\u7edf\u5f00\u9500\u3002<\/p>\n<p>\u4e3a\u4e86\u6ee1\u8db3\u8fd9\u4e9b\u8bbe\u8ba1\u76ee\u6807\uff0cLSM\u91c7\u7528\u4e86\u901a\u8fc7\u5728\u5185\u6838\u6e90\u4ee3\u7801\u4e2d\u653e\u7f6e\u94a9\u5b50\u7684\u65b9\u6cd5\uff0c\u6765\u4ef2\u88c1\u5bf9\u5185\u6838\u5185\u90e8\u5bf9\u8c61\u8fdb\u884c\u7684\u8bbf\u95ee\uff0c\u8fd9\u4e9b\u5bf9\u8c61\u6709\uff1a\u4efb\u52a1\uff0cinode\u7ed3\u70b9\uff0c\u6253\u5f00\u7684\u6587\u4ef6\u7b49\u7b49\u3002<span style=\"color: #0000ff;\">\u7528\u6237\u8fdb\u7a0b\u6267\u884c\u7cfb\u7edf\u8c03\u7528\uff08open system call\uff09\uff0c\u9996\u5148\u901a\u8fc7Linux\u5185\u6838\u539f\u6709\u7684\u903b\u8f91\u627e\u5230\u5e76\u5206\u914d\u8d44\u6e90\uff08look up inode\uff09\uff0c\u8fdb\u884c\u9519\u8bef\u68c0\u67e5\uff08error checks\uff09\uff0c\u5e76\u7ecf\u8fc7\u7ecf\u5178\u7684UNIX\u81ea\u4e3b\u8bbf\u95ee\u63a7\u5236\uff08DAC checks\uff09\uff0c\u300c\u6070\u597d\u300d\u5728Linux\u5185\u6838\u8bd5\u56fe\u5bf9\u5185\u90e8\u5bf9\u8c61\u8fdb\u884c\u8bbf\u95ee\u4e4b\u524d\uff0c\u4e00\u4e2aLSM\u7684\u94a9\u5b50\uff08LSM hook\uff09\u5bf9\u5b89\u5168\u6a21\u5757\u6240\u5fc5\u987b\u63d0\u4f9b\u7684\u51fd\u6570\u8fdb\u884c\u4e00\u4e2a\u8c03\u7528\uff0c\u5e76\u5bf9\u5b89\u5168\u6a21\u5757\u63d0\u51fa\u8fd9\u6837\u7684\u95ee\u9898&#8221;\u662f\u5426\u5141\u8bb8\u8bbf\u95ee\u6267\u884c\uff1f&#8221;\uff0c\u5b89\u5168\u6a21\u5757\u6839\u636e\u5176\u5b89\u5168\u7b56\u7565\u8fdb\u884c\u51b3\u7b56\uff0c\u4f5c\u51fa\u56de\u7b54\uff1a\u5141\u8bb8\uff0c\u6216\u8005\u62d2\u7edd\u8fdb\u800c\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u3002<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3360\" src=\"https:\/\/ixyzero.com\/blog\/wp-content\/uploads\/2017\/06\/LSM_Hook_Architecture.png\" alt=\"\" width=\"516\" height=\"354\" srcset=\"https:\/\/ixyzero.com\/wp-content\/uploads\/2017\/06\/LSM_Hook_Architecture.png 516w, https:\/\/ixyzero.com\/wp-content\/uploads\/2017\/06\/LSM_Hook_Architecture-300x206.png 300w\" sizes=\"auto, (max-width: 516px) 100vw, 516px\" \/><\/p>\n<p>\u4e3a\u4e86\u6ee1\u8db3\u5927\u591a\u6570\u73b0\u5b58Linux\u5b89\u5168\u589e\u5f3a\u7cfb\u7edf\u7684\u9700\u8981\uff0cLSM\u91c7\u53d6\u4e86\u7b80\u5316\u8bbe\u8ba1\u7684\u51b3\u7b56\u3002LSM\u73b0\u5728\u4e3b\u8981\u652f\u6301\u5927\u591a\u6570\u73b0\u5b58\u5b89\u5168\u589e\u5f3a\u7cfb\u7edf\u7684\u6838\u5fc3\u529f\u80fd\uff1a\u8bbf\u95ee\u63a7\u5236\uff1b\u800c\u5bf9\u4e00\u4e9b\u5b89\u5168\u589e\u5f3a\u7cfb\u7edf\u8981\u6c42\u7684\u5176\u4ed6\u5b89\u5168\u529f\u80fd\uff0c\u6bd4\u5982\u5b89\u5168\u5ba1\u8ba1\uff0c\u53ea\u63d0\u4f9b\u4e86\u7684\u5c11\u91cf\u7684\u652f\u6301\u3002\u8fd9\u6837\u505a\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u51cf\u5c11\u5bf9Linux\u5185\u6838\u7684\u4fee\u6539\u548c\u5f71\u54cd\uff0c\u4f7f\u5f97LSM\u8fdb\u5165Linux\u5185\u6838\u6210\u4e3a\u5b89\u5168\u673a\u5236\u6807\u51c6\u7684\u53ef\u80fd\u6027\u5927\u5927\u63d0\u9ad8\uff1b\u7b49\u6210\u4e3a\u6807\u51c6\u540e\uff0c\u518d\u6839\u636e\u60c5\u51b5\u6765\u6539\u53d8\u51b3\u7b56\u2014\u2014\u589e\u52a0\u529f\u80fd\u548c\u7075\u6d3b\u6027\u3002<\/p>\n<h6 id=\"LSM\u5b66\u4e60-3\uff0eLSM\u5b9e\u73b0\u65b9\u6cd5\u4ecb\u7ecd\uff1a\u5bf9Linux\u5185\u6838\u7684\u4fee\u6539\">3\uff0eLSM\u5b9e\u73b0\u65b9\u6cd5\u4ecb\u7ecd\uff1a\u5bf9Linux\u5185\u6838\u7684\u4fee\u6539<\/h6>\n<p><span style=\"color: #ff0000;\">LSM\u672c\u8eab\u4e0d\u63d0\u4f9b\u4efb\u4f55\u5177\u4f53\u7684\u5b89\u5168\u7b56\u7565\uff0c\u800c\u662f\u63d0\u4f9b\u4e86\u4e00\u4e2a\u901a\u7528\u7684\u57fa\u7840\u4f53\u7cfb\u7ed9\u5b89\u5168\u6a21\u5757\uff0c\u7531\u5b89\u5168\u6a21\u5757\u6765\u5b9e\u73b0\u5177\u4f53\u7684\u5b89\u5168\u7b56\u7565\u3002<\/span>\u5176\u4e3b\u8981\u5728\u4e94\u4e2a\u65b9\u9762\u5bf9Linux\u5185\u6838\u8fdb\u884c\u4e86\u4fee\u6539\uff1a<\/p>\n<ol>\n<li>\u5728\u7279\u5b9a\u7684\u5185\u6838\u6570\u636e\u7ed3\u6784\u4e2d\u52a0\u5165\u4e86\u5b89\u5168\u57df\uff08Opaque Security Fields\uff09<\/li>\n<li>\u5728\u5185\u6838\u6e90\u4ee3\u7801\u4e2d\u4e0d\u540c\u7684\u5173\u952e\u70b9\u63d2\u5165\u4e86\u5bf9\u5b89\u5168\u94a9\u5b50\u51fd\u6570\u7684\u8c03\u7528\uff08Calls to Security Hook Functions\uff09<\/li>\n<li>\u52a0\u5165\u4e86\u4e00\u4e2a\u901a\u7528\u7684\u5b89\u5168\u7cfb\u7edf\u8c03\u7528\uff08Security System Call\uff09<\/li>\n<li>\u63d0\u4f9b\u4e86\u51fd\u6570\u5141\u8bb8\u5185\u6838\u6a21\u5757\u6ce8\u518c\u4e3a\u5b89\u5168\u6a21\u5757\u6216\u8005\u6ce8\u9500\uff08Registering Security Modules\uff09<\/li>\n<li>\u5c06capabilities\u903b\u8f91\u7684\u5927\u90e8\u5206\u79fb\u690d\u4e3a\u4e00\u4e2a\u53ef\u9009\u7684\u5b89\u5168\u6a21\u5757\uff08Capabilities\uff09<\/li>\n<\/ol>\n<h6 id=\"LSM\u5b66\u4e60-4\uff0eLSM\u63a5\u53e3\u8bf4\u660e\uff1a\u7ed9\u5185\u6838\u5f00\u53d1\u4eba\u5458\u548c\u5b89\u5168\u7814\u7a76\u4eba\u5458\u4f7f\u7528\u7684\u94a9\u5b50\">4\uff0eLSM\u63a5\u53e3\u8bf4\u660e\uff1a\u7ed9\u5185\u6838\u5f00\u53d1\u4eba\u5458\u548c\u5b89\u5168\u7814\u7a76\u4eba\u5458\u4f7f\u7528\u7684\u94a9\u5b50<\/h6>\n<p>LSM\u5bf9\u4e8e\u5185\u6838\u5f00\u53d1\u4eba\u5458\u548c\u5b89\u5168\u7814\u7a76\u4eba\u5458\u7684\u4ef7\u503c\u5c31\u5728\u4e8e\uff1a\u53ef\u4ee5\u4f7f\u7528\u5176\u63d0\u4f9b\u7684\u63a5\u53e3\u5c06\u73b0\u5b58\u7684\u5b89\u5168\u589e\u5f3a\u7cfb\u7edf\u79fb\u690d\u5230\u8fd9\u4e00\u6846\u67b6\u4e0a\uff0c\u4ece\u800c\u80fd\u591f\u4ee5\u53ef\u52a0\u8f7d\u5185\u6838\u6a21\u5757\u7684\u5f62\u5f0f\u63d0\u4f9b\u7ed9\u7528\u6237\u4f7f\u7528\uff1b\u6216\u8005\u751a\u81f3\u53ef\u4ee5\u76f4\u63a5\u7f16\u5199\u9002\u5408\u81ea\u5df1\u9700\u8981\u7684\u5b89\u5168\u6a21\u5757\u3002<span style=\"color: #ff0000;\">LSM\u63d0\u4f9b\u7684\u63a5\u53e3\u5c31\u662f\u94a9\u5b50\uff0c\u5176\u521d\u59cb\u5316\u65f6\u6240\u6307\u5411\u7684\u865a\u62df\u51fd\u6570\u5b9e\u73b0\u4e86\u7f3a\u7701\u7684\u4f20\u7edfUNIX\u8d85\u7ea7\u7528\u6237\u673a\u5236\uff0c\u6a21\u5757\u7f16\u5199\u8005\u5fc5\u987b\u91cd\u65b0\u5b9e\u73b0\u8fd9\u4e9b\u94a9\u5b50\u51fd\u6570\u6765\u6ee1\u8db3\u81ea\u5df1\u7684\u5b89\u5168\u7b56\u7565\u3002<\/span>\u4e0b\u9762\u7b80\u8981\u4ecb\u7ecdLSM\u63d0\u4f9b\u7684\u94a9\u5b50\uff0c\u8be6\u7ec6\u60c5\u51b5\u8bf7\u53c2\u8003\u6e90\u4ee3\u7801\uff0c\u7279\u522b\u662finclude\/linux\/security.h\u5934\u6587\u4ef6\u4e2dsecurity_operations\u7ed3\u6784\u7684\u5b9a\u4e49\u3002\u81f3\u4e8e\u5177\u4f53\u5982\u4f55\u6839\u636e\u81ea\u5df1\u9700\u8981\u7684\u5b89\u5168\u7b56\u7565\u7f16\u5199\u5b89\u5168\u6a21\u5757\uff0c\u53ef\u4ee5\u53c2\u8003SELinux\uff0cDTE\uff0cLIDS\u7b49\u7cfb\u7edf\u7684\u5b89\u5168\u6a21\u5757\u5b9e\u73b0\u3002<\/p>\n<ul>\n<li>\u4efb\u52a1\u94a9\u5b50\uff08Task Hooks\uff09<\/li>\n<li>\u7a0b\u5e8f\u52a0\u8f7d\u94a9\u5b50\uff08Program Loading Hooks\uff09<\/li>\n<li>\u8fdb\u7a0b\u95f4\u901a\u4fe1\u94a9\u5b50\uff08IPC Hooks\uff09<\/li>\n<li>\u6587\u4ef6\u7cfb\u7edf\u94a9\u5b50\uff08Filesystem Hooks\uff09<\/li>\n<li>\u7f51\u7edc\u94a9\u5b50\uff08Network Hooks\uff09<\/li>\n<li>\u5176\u5b83\u94a9\u5b50\uff08Other Hooks\uff09<\/li>\n<\/ul>\n<h6 id=\"LSM\u5b66\u4e60-5\uff0eLSM\u6a21\u5757\u8bf4\u660e\uff1a\u7ed9\u666e\u901a\u7528\u6237\u4f7f\u7528\u7684\u73b0\u6210\u7684\u5b89\u5168\u529f\u80fd\">5\uff0eLSM\u6a21\u5757\u8bf4\u660e\uff1a\u7ed9\u666e\u901a\u7528\u6237\u4f7f\u7528\u7684\u73b0\u6210\u7684\u5b89\u5168\u529f\u80fd<\/h6>\n<p><span style=\"color: #ff0000;\">LSM\u5bf9\u4e8e\u666e\u901a\u7528\u6237\u7684\u4ef7\u503c\u5c31\u5728\u4e8e\uff1a\u53ef\u4ee5\u63d0\u4f9b\u5404\u79cd\u5b89\u5168\u6a21\u5757\uff0c\u7531\u7528\u6237\u9009\u62e9\u9002\u5408\u81ea\u5df1\u9700\u8981\u7684\u52a0\u8f7d\u5230\u5185\u6838\uff0c\u6ee1\u8db3\u7279\u5b9a\u7684\u5b89\u5168\u529f\u80fd\u3002<\/span>LSM\u672c\u8eab\u53ea\u63d0\u4f9b\u589e\u5f3a\u8bbf\u95ee\u63a7\u5236\u7b56\u7565\u7684\u673a\u5236\uff0c\u800c\u7531\u5404\u4e2a\u5b89\u5168\u6a21\u5757\u5b9e\u73b0\u5177\u4f53\u7279\u5b9a\u7684\u5b89\u5168\u7b56\u7565\u3002\u4e0b\u9762\u7b80\u8981\u4ecb\u7ecd\u4e00\u4e9b\u5df2\u7ecf\u5b9e\u73b0\u7684\u5b89\u5168\u6a21\u5757\uff1a<\/p>\n<ul>\n<li>SELinux\u3002\u8fd9\u662f\u4e00\u4e2aFlask\u7075\u6d3b\u8bbf\u95ee\u63a7\u5236\u4f53\u7cfb\u5728Linux\u4e0a\u7684\u5b9e\u73b0\uff0c\u5e76\u4e14\u63d0\u4f9b\u4e86\u7c7b\u578b\u589e\u5f3a\uff0c\u57fa\u4e8e\u89d2\u8272\u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u4ee5\u53ca\u53ef\u9009\u7684\u591a\u7ea7\u5b89\u5168\u7b56\u7565\u3002SELinux\u539f\u6765\u662f\u4f5c\u4e3a\u4e00\u4e2a\u5185\u6838\u8865\u4e01\u5b9e\u73b0\u7684\uff0c\u73b0\u5728\u5df2\u7ecf\u4f7f\u7528LSM\u91cd\u65b0\u5b9e\u73b0\u4e3a\u4e00\u4e2a\u5b89\u5168\u6a21\u5757\u3002SELinux\u53ef\u4ee5\u88ab\u7528\u6765\u9650\u5236\u8fdb\u7a0b\u4e3a\u6700\u5c0f\u7279\u6743\uff0c\u4fdd\u62a4\u8fdb\u7a0b\u548c\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u673a\u5bc6\u6027\uff0c\u5e76\u4e14\u652f\u6301\u5e94\u7528\u5b89\u5168\u9700\u6c42\u3002<\/li>\n<li>DTE Linux\u3002\u8fd9\u662f\u4e00\u4e2a\u57df\u548c\u7c7b\u578b\u589e\u5f3a\u5728Linux\u4e0a\u7684\u5b9e\u73b0\u3002\u5c31\u50cfSELinux\u4e00\u6837\uff0cDTE Linux\u539f\u6765\u662f\u4f5c\u4e3a\u4e00\u4e2a\u5185\u6838\u8865\u4e01\u5b9e\u73b0\u7684\uff0c\u73b0\u5728\u5df2\u7ecf\u4f7f\u7528LSM\u91cd\u65b0\u5b9e\u73b0\u4e3a\u4e00\u4e2a\u5b89\u5168\u6a21\u5757\u3002\u5f53\u8fd9\u4e2a\u5b89\u5168\u6a21\u5757\u88ab\u52a0\u8f7d\u5230\u5185\u6838\u4e0a\u65f6\uff0c\u7c7b\u578b\u88ab\u8d4b\u7ed9\u5bf9\u8c61\uff0c\u57df\u88ab\u8d4b\u7ed9\u8fdb\u7a0b\u3002DTE\u7b56\u7565\u9650\u5236\u57df\u4e4b\u95f4\u548c\u4ece\u57df\u5230\u7c7b\u578b\u7684\u8bbf\u95ee\u3002<\/li>\n<li>Openwall \u5185\u6838\u8865\u4e01\u7684LSM\u79fb\u690d\u3002Openwall\u5185\u6838\u8865\u4e01\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7684\u5b89\u5168\u7279\u6027\u96c6\u5408\u6765\u4fdd\u62a4\u7cfb\u7edf\u514d\u53d7\u4f8b\u5982\u7f13\u51b2\u533a\u6ea2\u51fa\u548c\u4e34\u65f6\u6587\u4ef6\u7ade\u4e89\u8fd9\u6837\u7684\u653b\u51fb\u3002\u6709\u5b89\u5168\u6a21\u5757\u6b63\u5728\u88ab\u5f00\u53d1\u51fa\u6765\u4ee5\u652f\u6301Openwall\u8865\u4e01\u7684\u4e00\u4e2a\u5b50\u96c6\u3002<\/li>\n<li>POSIX.1e capabilities\u3002Linux\u5185\u6838\u4e2d\u5df2\u7ecf\u5b58\u5728\u6709POSIX.1e capabilities\u903b\u8f91\uff0c\u4f46\u662fLSM\u628a\u8fd9\u4e2a\u903b\u8f91\u5212\u5206\u5230\u4e86\u4e00\u4e2a\u5b89\u5168\u6a21\u5757\u4e2d\u3002\u8fd9\u6837\u7684\u4fee\u6539\u4f7f\u5f97\u4e0d\u9700\u8981\u7684\u7528\u6237\u53ef\u4ee5\u4ece\u4ed6\u4eec\u7684\u5185\u6838\u4e2d\u628a\u8fd9\u4e2a\u529f\u80fd\u7565\u53bb\uff1b\u4e5f\u4f7f\u5f97capabilities\u903b\u8f91\u7684\u5f00\u53d1\u53ef\u4ee5\u8131\u79bb\u5185\u6838\u5f00\u53d1\u83b7\u5f97\u66f4\u5927\u7684\u72ec\u7acb\u6027\u3002<\/li>\n<li>LIDS\u3002\u8fd9\u662f\u7531\u56fd\u4eba\u8c22\u534e\u521a\u53d1\u8d77\u7684\u9879\u76ee\u3002\u5f00\u59cb\u65f6\u4f5c\u4e3a\u4e00\u4e2a\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\u5f00\u53d1\uff0c\u540e\u6765\u9010\u6e10\u6f14\u53d8\u4e3a\u4f7f\u7528\u8bbf\u95ee\u63a7\u5236\u7cfb\u7edf\u7684\u5f62\u5f0f\u6765\u8fdb\u884c\u5165\u4fb5\u9884\u9632\uff0c\u5b83\u901a\u8fc7\u63cf\u8ff0\u4e00\u4e2a\u7ed9\u5b9a\u7684\u7a0b\u5e8f\u53ef\u4ee5\u8bbf\u95ee\u54ea\u4e9b\u6587\u4ef6\u6765\u8fdb\u884c\u8bbf\u95ee\u63a7\u5236\u3002\u540c\u6837\u7684\uff0cLIDS\u539f\u6765\u662f\u4f5c\u4e3a\u4e00\u4e2a\u5185\u6838\u8865\u4e01\u5b9e\u73b0\u7684\u5e76\u9644\u5e26\u4e86\u4e00\u4e9b\u7ba1\u7406\u5de5\u5177\uff0c\u73b0\u5728\u5df2\u7ecf\u4f7f\u7528LSM\u91cd\u65b0\u5b9e\u73b0\u4e3a\u4e00\u4e2a\u5b89\u5168\u6a21\u5757\u3002<\/li>\n<\/ul>\n<p>\u5f53\u7136\u8fd8\u6709\u7f3a\u7701\u7684\u4f20\u7edf\u8d85\u7ea7\u7528\u6237\u673a\u5236\u3002\u8fd9\u4e2a\u5b89\u5168\u6a21\u5757\u662fLSM\u9ed8\u8ba4\u7684\uff0c\u5b9e\u73b0\u4e86\u4f20\u7edf\u7684UNIX\u8d85\u7ea7\u7528\u6237\u7279\u6743\u673a\u5236\u3002<\/p>\n<h6 id=\"LSM\u5b66\u4e60-6\uff0eLSM\u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\u8bf4\u660e\uff1astepbystep\">6\uff0eLSM\u5177\u4f53\u4f7f\u7528\u65b9\u6cd5\u8bf4\u660e\uff1astep by step<\/h6>\n<p><span style=\"color: #0000ff;\">LSM\u4e4b\u524d\u662f\u4f5c\u4e3a\u4e00\u4e2aLinux\u5185\u6838\u8865\u4e01\u7684\u5f62\u5f0f\u5b9e\u73b0\u7684\u3002\u4f46\u662f\u73b0\u5728\uff08\u4ece2007.10.26\u5f00\u59cb\uff09\u5e94\u8be5\u662f\u5df2\u7ecf\u52a0\u5165\u4e86Linux\u5185\u6838\u4e86\uff0c\u6240\u4ee5\u53ef\u4ee5\u901a\u8fc7\u67e5\u770b\u5185\u6838\u7684\u7f16\u8bd1\u9009\u9879\u6765\u770b\u662f\u5426\u5df2\u542f\u7528LSM\u4ee5\u53ca\u4f7f\u7528\u4e86\u54ea\u4e2a\u6216\u54ea\u4e9b\u5b89\u5168\u6a21\u5757\uff1a<\/span><\/p>\n<div class=\"code panel pdl conf-macro output-block\" data-hasbody=\"true\" data-macro-name=\"code\">\n<div class=\"codeContent panelContent pdl\">\n<div>\n<div id=\"highlighter_204214\" class=\"syntaxhighlighter sh-confluence nogutter java\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"code\">\n<div class=\"container\" title=\"Hint: double-click to select code\">\n<div class=\"line number1 index0 alt2\"><code class=\"java plain\"># CentOS\u00a0<\/code><code class=\"java value\">6<\/code><\/div>\n<div class=\"line number2 index1 alt1\"><code class=\"java plain\"># grep --color\u00a0<\/code><code class=\"java string\">\"CONFIG_SECURITY\"<\/code>\u00a0<code class=\"java plain\">\/boot\/config-$(uname -r)<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u5e38\u89c1\u7684LSM\u5b89\u5168\u6a21\u5757\u6709\uff1a<\/p>\n<div class=\"code panel pdl conf-macro output-block\" data-hasbody=\"true\" data-macro-name=\"code\">\n<div class=\"codeContent panelContent pdl\">\n<div>\n<div id=\"highlighter_599475\" class=\"syntaxhighlighter sh-confluence nogutter java\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td class=\"code\">\n<div class=\"container\" title=\"Hint: double-click to select code\">\n<div class=\"line number1 index0 alt2\"><code class=\"java plain\">AppArmor<\/code><\/div>\n<div class=\"line number2 index1 alt1\"><code class=\"java plain\">SELinux<\/code><\/div>\n<div class=\"line number3 index2 alt2\"><code class=\"java plain\">Smack<\/code><\/div>\n<div class=\"line number4 index3 alt1\"><code class=\"java plain\">TOMOYO<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h6 id=\"LSM\u5b66\u4e60-6\uff0eLSM\u4e4b\u5916\">6\uff0eLSM\u4e4b\u5916<\/h6>\n<p>\u5f53\u7136\uff0c\u9664\u4e86LSM\u8fd9\u79cd\u5b89\u5168\u673a\u5236\u4e4b\u5916\uff0cLinux\u8fd8\u53ef\u4ee5\u901a\u8fc7\u00a0<a class=\"external-link\" href=\"https:\/\/en.wikipedia.org\/wiki\/Grsecurity\" rel=\"nofollow\">grsecurity<\/a>\u00a0\u8fd9\u79cd\u7ed9\u5185\u6838\u6253\u8865\u4e01\u7684\u65b9\u5f0f\u6765\u63d0\u4f9bLinux\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002<\/p>\n<h5 id=\"LSM\u5b66\u4e60-\u53c2\u8003\u94fe\u63a5\uff1a\">\u53c2\u8003\u94fe\u63a5\uff1a<\/h5>\n<p>Linux LSM(Linux Security Modules) Hook Technology #<span style=\"color: #ff0000;\"><strong>nice<\/strong><\/span><br \/>\n<a class=\"external-link\" href=\"http:\/\/www.cnblogs.com\/LittleHann\/p\/4134939.html\" rel=\"nofollow\">http:\/\/www.cnblogs.com\/LittleHann\/p\/4134939.html<\/a><\/p>\n<p>Linux Security Module Framework<br \/>\n<a class=\"external-link\" href=\"http:\/\/namei.org\/lsm-ols2002-html\/lsm.html\" rel=\"nofollow\">http:\/\/namei.org\/lsm-ols2002-html\/lsm.html<\/a><br \/>\n<a class=\"external-link\" href=\"http:\/\/namei.org\/presentations\/lsm-usenix.pdf\" rel=\"nofollow\">http:\/\/namei.org\/presentations\/lsm-usenix.pdf<\/a><\/p>\n<p>Linux Security Modules: General Security Support for the Linux Kernel<br \/>\n<a class=\"external-link\" href=\"https:\/\/www.usenix.org\/legacy\/event\/sec02\/full_papers\/wright\/wright_html\/index.html\" rel=\"nofollow\">https:\/\/www.usenix.org\/legacy\/event\/sec02\/full_papers\/wright\/wright_html\/index.html<\/a><br \/>\n<a class=\"external-link\" href=\"http:\/\/www.kroah.com\/linux\/talks\/ols_2002_lsm_paper\/lsm.pdf\" rel=\"nofollow\">http:\/\/www.kroah.com\/linux\/talks\/ols_2002_lsm_paper\/lsm.pdf<\/a><\/p>\n<p>Section 3.1. The Kernel Architecture<br \/>\n<a class=\"external-link\" href=\"http:\/\/flylib.com\/books\/en\/2.803.1.24\/1\/\" rel=\"nofollow\">http:\/\/flylib.com\/books\/en\/2.803.1.24\/1\/<\/a><\/p>\n<p><a class=\"external-link\" href=\"http:\/\/courses.cs.vt.edu\/cs5204\/fall10-kafura-BB\/Papers\/TPM\/LSM-System-Monitoring-Kernel.pdf\" rel=\"nofollow\">http:\/\/courses.cs.vt.edu\/cs5204\/fall10-kafura-BB\/Papers\/TPM\/LSM-System-Monitoring-Kernel.pdf<\/a><\/p>\n<p>Linux\u4e0b\u5982\u4f55\u77e5\u9053\u5f53\u524d\u662f\u5426\u5df2\u5f15\u5165LSM\u6846\u67b6\uff1f\u4ee5\u53ca\u4f7f\u7528\u7684\u662f\u54ea\u4e2aLSM\u6a21\u5757\uff1f<br \/>\n<a class=\"external-link\" href=\"https:\/\/unix.stackexchange.com\/questions\/117782\/how-to-determine-if-and-which-linux-security-module-lsm-is-available\" rel=\"nofollow\">https:\/\/unix.stackexchange.com\/questions\/117782\/how-to-determine-if-and-which-linux-security-module-lsm-is-available<\/a><br \/>\n<a class=\"external-link\" href=\"https:\/\/unix.stackexchange.com\/questions\/106951\/are-there-other-lsm-linux-security-modules-in-addition-to-selinux-and-apparmor\" rel=\"nofollow\">https:\/\/unix.stackexchange.com\/questions\/106951\/are-there-other-lsm-linux-security-modules-in-addition-to-selinux-and-apparmor<\/a><\/p>\n<p><a class=\"external-link\" href=\"https:\/\/www.kernel.org\/doc\/Documentation\/security\/00-INDEX\" rel=\"nofollow\">https:\/\/www.kernel.org\/doc\/Documentation\/security\/00-INDEX<\/a><br \/>\n<a class=\"external-link\" href=\"https:\/\/www.kernel.org\/doc\/Documentation\/security\/LSM.txt\" rel=\"nofollow\">https:\/\/www.kernel.org\/doc\/Documentation\/security\/LSM.txt<\/a><\/p>\n<p>\u5982\u4f55\u589e\u5f3a Linux \u7cfb\u7edf\u7684\u5b89\u5168\u6027\uff0c\u7b2c\u4e00\u90e8\u5206: Linux \u5b89\u5168\u6a21\u5757\uff08LSM\uff09\u7b80\u4ecb #<span style=\"color: #ff0000;\"><strong>nice<\/strong><\/span><br \/>\n<a class=\"external-link\" href=\"https:\/\/www.ibm.com\/developerworks\/cn\/linux\/l-lsm\/part1\/index.html\" rel=\"nofollow\">https:\/\/www.ibm.com\/developerworks\/cn\/linux\/l-lsm\/part1\/index.html<\/a><br \/>\n<a class=\"external-link\" href=\"https:\/\/www.ibm.com\/support\/knowledgecenter\/linuxonibm\/liaav\/P14-LSM.pdf\" rel=\"nofollow\">https:\/\/www.ibm.com\/support\/knowledgecenter\/linuxonibm\/liaav\/P14-LSM.pdf<\/a><\/p>\n<p>linux\u5185\u6838\u6570\u636e\u7ed3\u6784\u5b66\u4e60\u603b\u7ed3<br \/>\n<a class=\"external-link\" href=\"http:\/\/www.cnblogs.com\/LittleHann\/p\/3865490.html\" rel=\"nofollow\">http:\/\/www.cnblogs.com\/LittleHann\/p\/3865490.html<\/a><\/p>\n<p>SELinux\u6e90\u7801\u5206\u6790_1.31<br \/>\n<a class=\"external-link\" href=\"https:\/\/wenku.baidu.com\/view\/df89fe235901020207409c49\" rel=\"nofollow\">https:\/\/wenku.baidu.com\/view\/df89fe235901020207409c49<\/a><\/p>\n<p>=END=<\/p>\n","protected":false},"excerpt":{"rendered":"<p>=Start= \u7f18\u7531\uff1a \u6211\u5bf9LSM\u7684\u5b66\u4e60\uff0c\u4e3b\u8981\u662f\u901a\u8fc7Chris Wright\u548cCrispin Cowan\u572820 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23,11,25,12],"tags":[820,30,818,819],"class_list":["post-3359","post","type-post","status-publish","format-standard","hentry","category-knowledgebase-2","category-linux","category-security","category-tools","tag-hook","tag-linux","tag-lsm","tag-selinux"],"views":7995,"_links":{"self":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/3359","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/comments?post=3359"}],"version-history":[{"count":1,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/3359\/revisions"}],"predecessor-version":[{"id":3361,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/posts\/3359\/revisions\/3361"}],"wp:attachment":[{"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/media?parent=3359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/categories?post=3359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ixyzero.com\/blog\/wp-json\/wp\/v2\/tags?post=3359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}