{"id":26090,"date":"2024-09-04T13:46:43","date_gmt":"2024-09-04T05:46:43","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=7665"},"modified":"2024-09-04T13:46:43","modified_gmt":"2024-09-04T05:46:43","slug":"%e6%8e%a2%e7%b4%a2ebpf%e7%9a%84%e5%bc%ba%e5%a4%a7%e5%8a%9f%e8%83%bd%e5%8f%8a%e5%85%b6%e5%9c%a8%e7%bd%91%e7%bb%9c%e7%9b%91%e6%b5%8b%e4%b8%ad%e7%9a%84%e5%85%b3%e9%94%ae%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/26090.html","title":{"rendered":"\u63a2\u7d22eBPF\u7684\u5f3a\u5927\u529f\u80fd\u53ca\u5176\u5728\u7f51\u7edc\u76d1\u6d4b\u4e2d\u7684\u5173\u952e\u5e94\u7528"},"content":{"rendered":"

\t\t\t\t<\/p>\n\n<\/p>\n\n\n\n

\u3000\u3000\u63a2\u7d22eBPF<\/a>\u7684\u5f3a\u5927\u529f\u80fd\u53ca\u5176\u5728\u7f51\u7edc\u76d1\u6d4b\u4e2d\u7684\u5173\u952e\u5e94\u7528<\/p>\n\n\n\n\n

\u3000\u3000\u5728\u5f53\u4eca\u6570\u5b57\u5316\u65f6\u4ee3\uff0c\u7f51\u7edc\u7684\u590d\u6742\u6027\u548c\u89c4\u6a21\u4e0d\u65ad\u589e\u957f\uff0c\u5bf9\u4e8e\u9ad8\u6548\u3001\u7cbe\u786e\u7684\u7f51\u7edc\u76d1\u6d4b\u9700\u6c42\u65e5\u76ca\u8feb\u5207\u3002\u5728\u4f17\u591a\u7684\u6280\u672f\u521b\u65b0\u4e2d\uff0ceBPF<\/a>\uff08ExtendedBerkeleyPacketFilter\uff09\u4ee5\u5176\u5f3a\u5927\u7684\u529f\u80fd\u8131\u9896\u800c\u51fa\uff0c\u6210\u4e3a\u7f51\u7edc\u76d1\u6d4b\u9886\u57df\u7684\u5173\u952e\u6280\u672f\u3002\u4e91\u6749\u7f51\u7edc<\/strong>\u4f5c\u4e3a\u7f51\u7edc\u9886\u57df\u7684\u521b\u65b0\u8005\uff0c\u4e00\u76f4\u81f4\u529b\u4e8e\u63a2\u7d22\u548c\u5e94\u7528\u5148\u8fdb\u6280\u672f\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u5353\u8d8a\u7684\u7f51\u7edc\u89e3\u51b3\u65b9\u6848\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8eBPF<\/a>\u7684\u5f3a\u5927\u529f\u80fd\u4ee5\u53ca\u5b83\u5728\u7f51\u7edc\u76d1\u6d4b\u4e2d\u7684\u5173\u952e\u5e94\u7528\u3002<\/p>\n\n\n\n\n

\u3000\u3000\u4e00\u3001eBPF\u6280\u672f\u7b80\u4ecb<\/strong><\/p>\n\n\n\n\n

\u3000\u3000eBPF\u662f\u4e00\u9879\u9769\u547d\u6027\u7684\u5185\u6838\u6280\u672f\uff0c\u5b83\u5141\u8bb8\u5728\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u4e2d\u8fd0\u884c\u7528\u6237\u5b9a\u4e49\u7684\u7a0b\u5e8f\u3002\u4f20\u7edf\u7684\u5185\u6838\u76d1\u6d4b\u548c\u8fc7\u6ee4\u5de5\u5177\u5f80\u5f80\u53d7\u5230\u529f\u80fd\u548c\u6027\u80fd\u7684\u9650\u5236\uff0c\u800ceBPF\u5219\u6253\u7834\u4e86\u8fd9\u4e9b\u675f\u7f1a\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u79cd\u5b89\u5168\u3001\u9ad8\u6548\u4e14\u7075\u6d3b\u7684\u65b9\u5f0f\u6765\u89c2\u6d4b\u548c\u5e72\u9884\u5185\u6838\u7684\u8fd0\u884c\u65f6\u884c\u4e3a\u3002<\/p>\n\n\n\n\n

\u3000\u3000eBPF\u7a0b\u5e8f\u53ef\u4ee5\u9644\u52a0\u5230\u5404\u79cd\u5185\u6838\u4e8b\u4ef6\u4e0a\uff0c\u4f8b\u5982\u7f51\u7edc\u6570\u636e\u5305\u7684\u63a5\u6536\u548c\u53d1\u9001\u3001\u7cfb\u7edf\u8c03\u7528\u3001\u8fdb\u7a0b\u521b\u5efa\u7b49\u3002\u901a\u8fc7\u6355\u83b7\u8fd9\u4e9b\u4e8b\u4ef6\uff0c\u5e76\u5728\u4e8b\u4ef6\u53d1\u751f\u65f6\u6267\u884c\u81ea\u5b9a\u4e49\u7684\u903b\u8f91\uff0ceBPF\u4e3a\u7cfb\u7edf\u7ba1\u7406\u5458\u548c\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u524d\u6240\u672a\u6709\u7684\u6d1e\u5bdf\u529b\u548c\u63a7\u5236\u80fd\u529b\u3002<\/p>\n\n\n\n\n

\u3000\u3000\u4e8c\u3001eBPF\u7684\u5f3a\u5927\u529f\u80fd<\/strong><\/p>\n\n\n\n\n

    \n\n\n
  1. \u9ad8\u6027\u80fd\u7684\u6570\u636e\u5305\u5904\u7406
    \neBPF\u80fd\u591f\u5728\u5185\u6838\u5c42\u9762\u76f4\u63a5\u5904\u7406\u7f51\u7edc\u6570\u636e\u5305\uff0c\u907f\u514d\u4e86\u4f20\u7edf\u7528\u6237\u7a7a\u95f4\u548c\u5185\u6838\u7a7a\u95f4\u4e4b\u95f4\u7684\u6570\u636e\u62f7\u8d1d\uff0c\u4ece\u800c\u5927\u5927\u63d0\u9ad8\u4e86\u6570\u636e\u5305\u5904\u7406\u7684\u6027\u80fd\u3002\u8fd9\u4f7f\u5f97\u5728\u9ad8\u6d41\u91cf\u7684\u7f51\u7edc\u73af\u5883\u4e2d\u8fdb\u884c\u5b9e\u65f6\u76d1\u6d4b\u548c\u5206\u6790\u6210\u4e3a\u53ef\u80fd\u3002<\/li>\n\n\n\n\n
  2. \u7075\u6d3b\u7684\u8fc7\u6ee4\u548c\u6355\u83b7\u80fd\u529b
    \n\u53ef\u4ee5\u6839\u636e\u81ea\u5b9a\u4e49\u7684\u89c4\u5219\u548c\u6761\u4ef6\u5bf9\u7f51\u7edc\u6570\u636e\u5305\u8fdb\u884c\u7cbe\u786e\u7684\u8fc7\u6ee4\u548c\u6355\u83b7\u3002\u65e0\u8bba\u662f\u57fa\u4e8e\u534f\u8bae\u7c7b\u578b\u3001\u7aef\u53e3\u53f7\u3001IP\u5730\u5740\u8fd8\u662f\u6570\u636e\u5305\u7684\u5185\u5bb9\uff0ceBPF\u90fd\u80fd\u8f7b\u677e\u5b9e\u73b0\u590d\u6742\u7684\u8fc7\u6ee4\u903b\u8f91\u3002<\/li>\n\n\n\n\n
  3. \u4f4e\u5f00\u9500\u7684\u7cfb\u7edf\u76d1\u6d4b
    \n\u4e0e\u4f20\u7edf\u7684\u76d1\u6d4b\u5de5\u5177\u76f8\u6bd4\uff0ceBPF\u7a0b\u5e8f\u7684\u6267\u884c\u5f00\u9500\u975e\u5e38\u4f4e\u3002\u5b83\u80fd\u591f\u5728\u4e0d\u663e\u8457\u5f71\u54cd\u7cfb\u7edf\u6027\u80fd\u7684\u60c5\u51b5\u4e0b\uff0c\u6301\u7eed\u6536\u96c6\u7cfb\u7edf\u8fd0\u884c\u7684\u5173\u952e\u4fe1\u606f\uff0c\u4e3a\u6027\u80fd\u4f18\u5316\u548c\u6545\u969c\u8bca\u65ad\u63d0\u4f9b\u6709\u529b\u652f\u6301\u3002<\/li>\n\n\n\n\n
  4. \u53ef\u6269\u5c55\u6027
    \neBPF\u67b6\u6784\u5177\u6709\u51fa\u8272\u7684\u53ef\u6269\u5c55\u6027\uff0c\u5141\u8bb8\u5f00\u53d1\u8005\u4e0d\u65ad\u521b\u5efa\u65b0\u7684\u5de5\u5177\u548c\u5e94\u7528\u3002\u901a\u8fc7\u52a0\u8f7d\u65b0\u7684eBPF\u7a0b\u5e8f\uff0c\u7cfb\u7edf\u53ef\u4ee5\u8f7b\u677e\u9002\u5e94\u4e0d\u65ad\u53d8\u5316\u7684\u7f51\u7edc\u76d1\u6d4b\u9700\u6c42\u3002<\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u4e09\u3001eBPF\u5728\u7f51\u7edc\u76d1\u6d4b\u4e2d\u7684\u5173\u952e\u5e94\u7528<\/strong><\/p>\n\n\n\n\n

      \n\n\n
    1. \n\n

      \u3000\u3000\u7f51\u7edc\u6d41\u91cf\u76d1\u63a7
      \n\u5229\u7528eBPF\u7684\u6570\u636e\u5305\u6355\u83b7\u548c\u8fc7\u6ee4\u529f\u80fd\uff0c\u53ef\u4ee5\u5b9e\u65f6\u76d1\u63a7\u7f51\u7edc\u4e2d\u7684\u6d41\u91cf\u6a21\u5f0f\u3002\u4e91\u6749\u7f51\u7edc<\/strong>\u901a\u8fc7\u8fd0\u7528eBPF\u6280\u672f\uff0c\u80fd\u591f\u4e3a\u7528\u6237\u63d0\u4f9b\u7cbe\u786e\u5230\u6bcf\u4e2a\u5e94\u7528\u3001\u6bcf\u4e2a\u8fde\u63a5\u7684\u6d41\u91cf\u7edf\u8ba1\u548c\u5206\u6790\uff0c\u5e2e\u52a9\u7528\u6237\u5feb\u901f\u53d1\u73b0\u5f02\u5e38\u6d41\u91cf\u548c\u6f5c\u5728\u7684\u5b89\u5168\u5a01\u80c1\u3002
      \n\u4f8b\u5982\uff0c\u53ef\u4ee5\u76d1\u6d4b\u7279\u5b9a\u7aef\u53e3\u4e0a\u7684\u6d41\u91cf\u662f\u5426\u7a81\u7136\u6fc0\u589e\uff0c\u6216\u8005\u67d0\u4e2a\u5e94\u7528\u7684\u7f51\u7edc\u5e26\u5bbd\u4f7f\u7528\u662f\u5426\u8d85\u51fa\u4e86\u6b63\u5e38\u8303\u56f4\u3002<\/p>\n\n\n<\/li>\n\n\n\n\n

    2. \n\n

      \u3000\u3000\u5e94\u7528\u6027\u80fd\u76d1\u6d4b
      \n\u901a\u8fc7eBPF\u76d1\u6d4b\u5e94\u7528\u7a0b\u5e8f\u7684\u7cfb\u7edf\u8c03\u7528\u548c\u7f51\u7edc\u884c\u4e3a\uff0c\u80fd\u591f\u6df1\u5165\u4e86\u89e3\u5e94\u7528\u7684\u6027\u80fd\u74f6\u9888\u3002\u53ef\u4ee5\u8ddf\u8e2a\u5e94\u7528\u4e0e\u6570\u636e\u5e93\u7684\u4ea4\u4e92\u3001\u7f51\u7edc\u8bf7\u6c42\u7684\u54cd\u5e94\u65f6\u95f4\u7b49\u5173\u952e\u6307\u6807\uff0c\u4e3a\u4f18\u5316\u5e94\u7528\u6027\u80fd\u63d0\u4f9b\u51c6\u786e\u7684\u4f9d\u636e\u3002<\/p>\n\n\n<\/li>\n\n\n\n\n

    3. \n\n

      \u3000\u3000\u7f51\u7edc\u5b89\u5168\u68c0\u6d4b
      \neBPF\u5728\u7f51\u7edc\u5b89\u5168\u9886\u57df\u53d1\u6325\u7740\u91cd\u8981\u4f5c\u7528\u3002\u5b83\u53ef\u4ee5\u7528\u4e8e\u68c0\u6d4b\u6076\u610f\u8f6f\u4ef6\u7684\u7f51\u7edc\u6d3b\u52a8\u3001\u5165\u4fb5\u5c1d\u8bd5\u548c\u5f02\u5e38\u7684\u8fde\u63a5\u884c\u4e3a\u3002\u901a\u8fc7\u5b9e\u65f6\u5206\u6790\u7f51\u7edc\u6570\u636e\u5305\uff0c\u80fd\u591f\u5feb\u901f\u53d1\u73b0\u5e76\u963b\u6b62\u6f5c\u5728\u7684\u5b89\u5168\u5a01\u80c1\u3002<\/p>\n\n\n<\/li>\n\n\n\n\n

    4. \n\n

      \u3000\u3000\u6545\u969c\u8bca\u65ad\u548c\u6392\u9519
      \n\u5f53\u7f51\u7edc\u51fa\u73b0\u6545\u969c\u65f6\uff0ceBPF\u53ef\u4ee5\u5e2e\u52a9\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898\u6240\u5728\u3002\u4f8b\u5982\uff0c\u901a\u8fc7\u76d1\u6d4b\u7f51\u7edc\u6570\u636e\u5305\u7684\u4e22\u5931\u3001\u5ef6\u8fdf\u548c\u91cd\u4f20\u7b49\u60c5\u51b5\uff0c\u5206\u6790\u7f51\u7edc\u534f\u8bae\u7684\u4ea4\u4e92\u8fc7\u7a0b\uff0c\u627e\u51fa\u5bfc\u81f4\u6545\u969c\u7684\u6839\u672c\u539f\u56e0\u3002<\/p>\n\n\n<\/li>\n\n\n<\/ol>\n\n\n\n\n

      \u3000\u3000\u56db\u3001\u4e91\u6749\u7f51\u7edc\u4e0eeBPF\u7684\u878d\u5408<\/strong><\/p>\n\n\n\n\n

      \u3000\u3000\u4e91\u6749\u7f51\u7edc<\/strong>\u4e00\u76f4\u79ef\u6781\u63a2\u7d22eBPF\u6280\u672f\u5728\u7f51\u7edc\u76d1\u6d4b\u4e2d\u7684\u5e94\u7528\uff0c\u5c06\u5176\u878d\u5165\u5230\u81ea\u8eab\u7684\u4ea7\u54c1\u548c\u89e3\u51b3\u65b9\u6848\u4e2d\u3002\u901a\u8fc7\u5229\u7528eBPF\u7684\u5f3a\u5927\u529f\u80fd\uff0c\u4e91\u6749\u7f51\u7edc<\/strong>\u80fd\u591f\u4e3a\u7528\u6237\u63d0\u4f9b\u66f4\u9ad8\u6548\u3001\u66f4\u7cbe\u51c6\u3001\u66f4\u5168\u9762\u7684\u7f51\u7edc\u76d1\u6d4b\u670d\u52a1\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u5728\u4e91\u6749\u7f51\u7edc\u7684\u89e3\u51b3\u65b9\u6848\u4e2d\uff0ceBPF\u6280\u672f\u88ab\u7528\u4e8e\u5b9e\u65f6\u76d1\u6d4b\u7f51\u7edc\u6d41\u91cf\u3001\u5206\u6790\u5e94\u7528\u6027\u80fd\u3001\u68c0\u6d4b\u5b89\u5168\u5a01\u80c1\u7b49\u591a\u4e2a\u65b9\u9762\u3002\u901a\u8fc7\u6df1\u5ea6\u6574\u5408eBPF\u4e0e\u5176\u4ed6\u5148\u8fdb\u6280\u672f\uff0c\u4e91\u6749\u7f51\u7edc\u80fd\u591f\u4e3a\u4e0d\u540c\u89c4\u6a21\u7684\u4f01\u4e1a\u63d0\u4f9b\u5b9a\u5236\u5316\u7684\u7f51\u7edc\u76d1\u6d4b\u65b9\u6848\uff0c\u6ee1\u8db3\u5176\u5728\u6570\u5b57\u5316\u8f6c\u578b\u8fc7\u7a0b\u4e2d\u7684\u5404\u79cd\u9700\u6c42\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u4f8b\u5982\uff0c\u5bf9\u4e8e\u91d1\u878d\u884c\u4e1a\u7684\u7528\u6237\uff0c\u4e91\u6749\u7f51\u7edc\u5229\u7528eBPF\u6280\u672f\u5b9e\u73b0\u5bf9\u9ad8\u9891\u4ea4\u6613\u7cfb\u7edf\u7684\u5b9e\u65f6\u6027\u80fd\u76d1\u6d4b\u548c\u4f18\u5316\uff0c\u786e\u4fdd\u4ea4\u6613\u7684\u4f4e\u5ef6\u8fdf\u548c\u9ad8\u53ef\u9760\u6027\uff1b\u5bf9\u4e8e\u4e92\u8054\u7f51\u4f01\u4e1a\uff0c\u901a\u8fc7eBPF\u8fdb\u884c\u5927\u89c4\u6a21\u5206\u5e03\u5f0f\u7cfb\u7edf\u7684\u7f51\u7edc\u6545\u969c\u8bca\u65ad\u548c\u5feb\u901f\u5b9a\u4f4d\uff0c\u4fdd\u969c\u4e1a\u52a1\u7684\u8fde\u7eed\u6027\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u4e94\u3001eBPF\u9762\u4e34\u7684\u6311\u6218\u4e0e\u672a\u6765\u5c55\u671b<\/strong><\/p>\n\n\n\n\n

      \u3000\u3000\u5c3d\u7ba1eBPF\u5728\u7f51\u7edc\u76d1\u6d4b\u4e2d\u5c55\u73b0\u51fa\u5de8\u5927\u7684\u6f5c\u529b\uff0c\u4f46\u4e5f\u9762\u4e34\u4e00\u4e9b\u6311\u6218\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u9996\u5148\uff0c\u7f16\u5199\u548c\u8c03\u8bd5eBPF\u7a0b\u5e8f\u9700\u8981\u4e00\u5b9a\u7684\u6280\u672f\u95e8\u69db\u548c\u4e13\u4e1a\u77e5\u8bc6\u3002\u5176\u6b21\uff0ceBPF\u6280\u672f\u5728\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u548c\u5185\u6838\u7248\u672c\u4e0a\u7684\u517c\u5bb9\u6027\u8fd8\u9700\u8981\u8fdb\u4e00\u6b65\u5b8c\u5584\u3002<\/p>\n\n\n\n\n

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