{"id":25775,"date":"2024-08-29T14:31:46","date_gmt":"2024-08-29T06:31:46","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=6284"},"modified":"2024-08-29T14:31:46","modified_gmt":"2024-08-29T06:31:46","slug":"ebpf%e7%9a%84%e5%ba%94%e7%94%a8%e6%8b%93%e5%b1%95%ef%bc%9a%e5%9c%a8%e7%bd%91%e7%bb%9c%e4%bc%98%e5%8c%96%e9%a2%86%e5%9f%9f%e7%9a%84%e7%aa%81%e5%87%ba%e8%a1%a8%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/25775.html","title":{"rendered":"eBPF\u7684\u5e94\u7528\u62d3\u5c55\uff1a\u5728\u7f51\u7edc\u4f18\u5316\u9886\u57df\u7684\u7a81\u51fa\u8868\u73b0"},"content":{"rendered":"

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

\u3000\u3000eBPF<\/a>\u7684\u5e94\u7528\u62d3\u5c55\uff1a\u5728\u7f51\u7edc\u4f18\u5316\u9886\u57df\u7684\u7a81\u51fa\u8868\u73b0<\/p>\n\n\n\n\n

\u3000\u3000\u5728\u5f53\u4eca\u6570\u5b57\u5316\u9ad8\u901f\u53d1\u5c55\u7684\u65f6\u4ee3\uff0c\u7f51\u7edc\u6027\u80fd\u7684\u4f18\u5316\u5bf9\u4e8e\u4f01\u4e1a\u548c\u7ec4\u7ec7\u7684\u4e1a\u52a1\u8fd0\u8425\u81f3\u5173\u91cd\u8981\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u6f14\u8fdb\uff0ceBPF<\/a>\uff08ExtendedBerkeleyPacketFilter\uff09\u4f5c\u4e3a\u4e00\u9879\u521b\u65b0\u7684\u6280\u672f\uff0c\u6b63\u9010\u6e10\u5728\u7f51\u7edc\u4f18\u5316\u9886\u57df\u5c55\u73b0\u51fa\u5176\u7a81\u51fa\u7684\u8868\u73b0\u3002\u4e91\u6749\u7f51\u7edc<\/strong>\u4f5c\u4e3a\u7f51\u7edc\u9886\u57df\u7684\u9886\u5148\u54c1\u724c\uff0c\u4e00\u76f4\u81f4\u529b\u4e8e\u63a2\u7d22\u548c\u5e94\u7528\u5148\u8fdb\u7684\u6280\u672f\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u66f4\u4f18\u8d28\u7684\u7f51\u7edc\u4f18\u5316\u89e3\u51b3\u65b9\u6848\uff0c\u800ceBPF<\/a>\u5728\u5176\u4e2d\u53d1\u6325\u7740\u5173\u952e\u4f5c\u7528\u3002<\/p>\n\n\n\n\n

\u3000\u3000\u4e00\u3001eBPF\u6280\u672f\u7684\u6982\u8ff0<\/strong><\/p>\n\n\n\n\n

\u3000\u3000eBPF\u662f\u4e00\u79cd\u9769\u547d\u6027\u7684\u5185\u6838\u6280\u672f\uff0c\u5b83\u5141\u8bb8\u5728\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u4e2d\u8fd0\u884c\u81ea\u5b9a\u4e49\u7684\u7a0b\u5e8f\u3002\u4e0e\u4f20\u7edf\u7684\u5185\u6838\u6a21\u5757\u76f8\u6bd4\uff0ceBPF\u5177\u6709\u66f4\u9ad8\u7684\u5b89\u5168\u6027\u3001\u7075\u6d3b\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002\u5b83\u80fd\u591f\u5728\u4e0d\u4fee\u6539\u5185\u6838\u6e90\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u5b9e\u73b0\u5bf9\u5185\u6838\u4e8b\u4ef6\u7684\u9ad8\u6548\u6355\u83b7\u548c\u5904\u7406\u3002<\/p>\n\n\n\n\n

\u3000\u3000eBPF\u7a0b\u5e8f\u53ef\u4ee5\u9644\u7740\u5728\u5404\u79cd\u5185\u6838\u94a9\u5b50\u70b9\u4e0a\uff0c\u4f8b\u5982\u7f51\u7edc\u6570\u636e\u5305\u7684\u63a5\u6536\u548c\u53d1\u9001\u3001\u7cfb\u7edf\u8c03\u7528\u3001\u5185\u6838\u8ddf\u8e2a\u70b9\u7b49\u3002\u901a\u8fc7\u8fd9\u4e9b\u94a9\u5b50\u70b9\uff0ceBPF\u80fd\u591f\u83b7\u53d6\u5230\u4e30\u5bcc\u7684\u5185\u6838\u4fe1\u606f\uff0c\u5e76\u57fa\u4e8e\u8fd9\u4e9b\u4fe1\u606f\u8fdb\u884c\u5b9e\u65f6\u7684\u51b3\u7b56\u548c\u5904\u7406\u3002<\/p>\n\n\n\n\n

\u3000\u3000\u4e8c\u3001eBPF\u5728\u7f51\u7edc\u4f18\u5316\u4e2d\u7684\u5173\u952e\u5e94\u7528<\/strong><\/p>\n\n\n\n\n

    \n\n\n
  1. \u7f51\u7edc\u6570\u636e\u5305\u8fc7\u6ee4\u548c\u5904\u7406<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000eBPF\u53ef\u4ee5\u7528\u4e8e\u5b9e\u73b0\u9ad8\u6548\u7684\u7f51\u7edc\u6570\u636e\u5305\u8fc7\u6ee4\u3002\u4f20\u7edf\u7684\u6570\u636e\u5305\u8fc7\u6ee4\u65b9\u6cd5\u5f80\u5f80\u4f9d\u8d56\u4e8e\u590d\u6742\u7684\u89c4\u5219\u5339\u914d\u548c\u786c\u4ef6\u8bbe\u5907\uff0c\u800ceBPF\u80fd\u591f\u5728\u5185\u6838\u5c42\u9762\u76f4\u63a5\u5bf9\u6570\u636e\u5305\u8fdb\u884c\u5feb\u901f\u7684\u7b5b\u9009\u548c\u5904\u7406\u3002\u8fd9\u4e0d\u4ec5\u63d0\u9ad8\u4e86\u6570\u636e\u5305\u5904\u7406\u7684\u6548\u7387\uff0c\u8fd8\u964d\u4f4e\u4e86\u7f51\u7edc\u5ef6\u8fdf\u3002<\/p>\n\n\n\n\n

    \u3000\u3000\u4f8b\u5982\uff0c\u4e91\u6749\u7f51\u7edc<\/strong>\u5229\u7528eBPF\u6280\u672f\uff0c\u53ef\u4ee5\u6839\u636e\u7279\u5b9a\u7684\u534f\u8bae\u3001\u7aef\u53e3\u3001\u6e90\u5730\u5740\u548c\u76ee\u7684\u5730\u5740\u7b49\u6761\u4ef6\uff0c\u7cbe\u51c6\u5730\u8fc7\u6ee4\u6389\u4e0d\u9700\u8981\u7684\u6570\u636e\u5305\uff0c\u4ece\u800c\u51cf\u5c11\u7f51\u7edc\u5e26\u5bbd\u7684\u5360\u7528\uff0c\u63d0\u9ad8\u7f51\u7edc\u7684\u6574\u4f53\u6027\u80fd\u3002<\/p>\n\n\n\n\n\n

  2. \u7f51\u7edc\u6d41\u91cf\u76d1\u63a7\u548c\u5206\u6790<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u51c6\u786e\u4e86\u89e3\u7f51\u7edc\u4e2d\u7684\u6d41\u91cf\u5206\u5e03\u548c\u884c\u4e3a\u5bf9\u4e8e\u4f18\u5316\u7f51\u7edc\u81f3\u5173\u91cd\u8981\u3002eBPF\u80fd\u591f\u5b9e\u65f6\u6355\u83b7\u7f51\u7edc\u6d41\u91cf\u6570\u636e\uff0c\u5e76\u8fdb\u884c\u6df1\u5165\u7684\u5206\u6790\u3002\u5b83\u53ef\u4ee5\u63d0\u4f9b\u5173\u4e8e\u6d41\u91cf\u7684\u5927\u5c0f\u3001\u6d41\u5411\u3001\u5ef6\u8fdf\u3001\u4e22\u5305\u7387\u7b49\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n\n\n\n\n

    \u3000\u3000\u901a\u8fc7eBPF\u5b9e\u73b0\u7684\u6d41\u91cf\u76d1\u63a7\u548c\u5206\u6790\uff0c\u4e91\u6749\u7f51\u7edc<\/strong>\u80fd\u591f\u5e2e\u52a9\u7528\u6237\u5feb\u901f\u53d1\u73b0\u7f51\u7edc\u4e2d\u7684\u5f02\u5e38\u6d41\u91cf\u6a21\u5f0f\uff0c\u4f8b\u5982\u7a81\u53d1\u7684\u6d41\u91cf\u9ad8\u5cf0\u3001\u5f02\u5e38\u7684\u6d41\u91cf\u6d41\u5411\u7b49\u3002\u8fd9\u6709\u52a9\u4e8e\u53ca\u65f6\u91c7\u53d6\u63aa\u65bd\uff0c\u907f\u514d\u7f51\u7edc\u62e5\u585e\u548c\u6545\u969c\u3002<\/p>\n\n\n\n\n\n

  3. \u5e94\u7528\u6027\u80fd\u76d1\u6d4b\u548c\u4f18\u5316<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u5bf9\u4e8e\u5173\u952e\u4e1a\u52a1\u5e94\u7528\uff0c\u6027\u80fd\u7684\u4fdd\u969c\u81f3\u5173\u91cd\u8981\u3002eBPF\u53ef\u4ee5\u6df1\u5165\u5230\u5e94\u7528\u7a0b\u5e8f\u7684\u7f51\u7edc\u4ea4\u4e92\u5c42\u9762\uff0c\u76d1\u6d4b\u5e94\u7528\u7684\u7f51\u7edc\u8bf7\u6c42\u548c\u54cd\u5e94\u3002\u901a\u8fc7\u5206\u6790\u8fd9\u4e9b\u6570\u636e\uff0c\u53ef\u4ee5\u53d1\u73b0\u5e94\u7528\u5728\u7f51\u7edc\u5c42\u9762\u7684\u6027\u80fd\u74f6\u9888\u3002<\/p>\n\n\n\n\n

    \u3000\u3000\u4e91\u6749\u7f51\u7edc<\/strong>\u501f\u52a9eBPF\u6280\u672f\uff0c\u80fd\u591f\u4e3a\u7528\u6237\u63d0\u4f9b\u9488\u5bf9\u5e94\u7528\u7684\u7cbe\u7ec6\u5316\u6027\u80fd\u76d1\u6d4b\u548c\u4f18\u5316\u5efa\u8bae\u3002\u4f8b\u5982\uff0c\u53d1\u73b0\u67d0\u4e2a\u5e94\u7528\u5728\u7279\u5b9a\u7f51\u7edc\u73af\u5883\u4e0b\u7684\u5ef6\u8fdf\u8fc7\u9ad8\uff0c\u4ece\u800c\u9488\u5bf9\u6027\u5730\u8c03\u6574\u7f51\u7edc\u914d\u7f6e\u6216\u4f18\u5316\u5e94\u7528\u7684\u7f51\u7edc\u4ee3\u7801\u3002<\/p>\n\n\n\n\n\n

  4. \u7f51\u7edc\u5b89\u5168\u589e\u5f3a<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

    \u3000\u3000\u5728\u7f51\u7edc\u5b89\u5168\u9886\u57df\uff0ceBPF\u4e5f\u5177\u6709\u91cd\u8981\u7684\u5e94\u7528\u4ef7\u503c\u3002\u5b83\u53ef\u4ee5\u7528\u4e8e\u5b9e\u65f6\u68c0\u6d4b\u548c\u963b\u6b62\u6076\u610f\u7f51\u7edc\u6d3b\u52a8\uff0c\u5982\u5165\u4fb5\u68c0\u6d4b\u3001\u7aef\u53e3\u626b\u63cf\u76d1\u6d4b\u7b49\u3002<\/p>\n\n\n\n\n

    \u3000\u3000\u4e91\u6749\u7f51\u7edc<\/strong>\u5c06eBPF\u4e0e\u5b89\u5168\u7b56\u7565\u76f8\u7ed3\u5408\uff0c\u80fd\u591f\u5728\u7f51\u7edc\u8fb9\u7f18\u5feb\u901f\u8bc6\u522b\u548c\u62e6\u622a\u6f5c\u5728\u7684\u5b89\u5168\u5a01\u80c1\uff0c\u4e3a\u7528\u6237\u7684\u7f51\u7edc\u73af\u5883\u63d0\u4f9b\u66f4\u5f3a\u5927\u7684\u5b89\u5168\u9632\u62a4\u3002<\/p>\n\n\n\n\n

    \u3000\u3000\u4e09\u3001eBPF\u5e26\u6765\u7684\u4f18\u52bf\u548c\u7a81\u7834<\/strong><\/p>\n\n\n\n\n

      \n\n\n
    1. \u9ad8\u6027\u80fd\u548c\u4f4e\u5f00\u9500<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

      \u3000\u3000eBPF\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u8fd0\u884c\uff0c\u907f\u514d\u4e86\u4e0a\u4e0b\u6587\u5207\u6362\u548c\u7528\u6237\u6001\u4e0e\u5185\u6838\u6001\u4e4b\u95f4\u7684\u6570\u636e\u62f7\u8d1d\uff0c\u56e0\u6b64\u5177\u6709\u6781\u4f4e\u7684\u6027\u80fd\u5f00\u9500\u3002\u8fd9\u4f7f\u5f97\u5b83\u80fd\u591f\u5728\u4e0d\u5f71\u54cd\u7cfb\u7edf\u6027\u80fd\u7684\u524d\u63d0\u4e0b\uff0c\u5b9e\u73b0\u5bf9\u7f51\u7edc\u7684\u5b9e\u65f6\u4f18\u5316\u548c\u76d1\u63a7\u3002<\/p>\n\n\n\n\n\n

    2. \u7075\u6d3b\u6027\u548c\u53ef\u6269\u5c55\u6027<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

      \u3000\u3000\u7531\u4e8eeBPF\u652f\u6301\u81ea\u5b9a\u4e49\u7a0b\u5e8f\uff0c\u7528\u6237\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u7279\u5b9a\u9700\u6c42\u7f16\u5199\u76f8\u5e94\u7684\u4ee3\u7801\u3002\u8fd9\u79cd\u7075\u6d3b\u6027\u4f7f\u5f97eBPF\u80fd\u591f\u9002\u5e94\u5404\u79cd\u590d\u6742\u7684\u7f51\u7edc\u73af\u5883\u548c\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n\n\n

    3. \u5b9e\u65f6\u6027\u548c\u52a8\u6001\u8c03\u6574<\/strong><\/li>\n\n\n<\/ol>\n\n\n\n\n

      \u3000\u3000eBPF\u80fd\u591f\u5b9e\u65f6\u54cd\u5e94\u5185\u6838\u4e8b\u4ef6\uff0c\u5e76\u6839\u636e\u5b9e\u65f6\u6570\u636e\u8fdb\u884c\u52a8\u6001\u7684\u8c03\u6574\u548c\u4f18\u5316\u3002\u8fd9\u4e0e\u4f20\u7edf\u7684\u57fa\u4e8e\u9759\u6001\u914d\u7f6e\u7684\u7f51\u7edc\u4f18\u5316\u65b9\u6cd5\u76f8\u6bd4\uff0c\u5177\u6709\u660e\u663e\u7684\u4f18\u52bf\u3002<\/p>\n\n\n\n\n

      \u3000\u3000\u56db\u3001eBPF\u5728\u4e91\u6749\u7f51\u7edc\u89e3\u51b3\u65b9\u6848\u4e2d\u7684\u5b9e\u8df5\u6848\u4f8b<\/strong><\/p>\n\n\n\n\n

        \n\n\n
      1. \u67d0\u5927\u578b\u7535\u5546\u4f01\u4e1a<\/li>\n\n\n<\/ol>\n\n\n\n\n

        \u3000\u3000\u8be5\u4f01\u4e1a\u5728\u4fc3\u9500\u6d3b\u52a8\u671f\u95f4\u9762\u4e34\u7740\u5de8\u5927\u7684\u7f51\u7edc\u6d41\u91cf\u538b\u529b\uff0c\u5bfc\u81f4\u90e8\u5206\u7528\u6237\u7684\u8d2d\u7269\u4f53\u9a8c\u53d7\u5230\u5f71\u54cd\u3002\u4e91\u6749\u7f51\u7edc<\/strong>\u5229\u7528eBPF\u6280\u672f\uff0c\u5bf9\u7f51\u7edc\u6d41\u91cf\u8fdb\u884c\u5b9e\u65f6\u76d1\u63a7\u548c\u5206\u6790\uff0c\u5feb\u901f\u5b9a\u4f4d\u5230\u4e86\u7f51\u7edc\u62e5\u585e\u7684\u8282\u70b9\uff0c\u5e76\u901a\u8fc7\u52a8\u6001\u8c03\u6574\u8def\u7531\u7b56\u7565\u548c\u4f18\u5316\u6570\u636e\u5305\u5904\u7406\uff0c\u6210\u529f\u89e3\u51b3\u4e86\u7f51\u7edc\u62e5\u5835\u95ee\u9898\uff0c\u4fdd\u969c\u4e86\u4fc3\u9500\u6d3b\u52a8\u7684\u987a\u5229\u8fdb\u884c\u3002<\/p>\n\n\n\n\n\n

      2. \u67d0\u91d1\u878d\u673a\u6784<\/li>\n\n\n<\/ol>\n\n\n\n\n

        \u3000\u3000\u91d1\u878d\u673a\u6784\u5bf9\u4e8e\u7f51\u7edc\u5b89\u5168\u548c\u5e94\u7528\u6027\u80fd\u6709\u7740\u6781\u9ad8\u7684\u8981\u6c42\u3002\u4e91\u6749\u7f51\u7edc<\/strong>\u57fa\u4e8eeBPF\u5f00\u53d1\u7684\u5b89\u5168\u589e\u5f3a\u548c\u5e94\u7528\u6027\u80fd\u76d1\u6d4b\u89e3\u51b3\u65b9\u6848\uff0c\u5e2e\u52a9\u8be5\u673a\u6784\u5b9e\u65f6\u68c0\u6d4b\u5230\u4e86\u6f5c\u5728\u7684\u7f51\u7edc\u653b\u51fb\uff0c\u5e76\u4f18\u5316\u4e86\u5173\u952e\u4e1a\u52a1\u5e94\u7528\u7684\u7f51\u7edc\u6027\u80fd\uff0c\u786e\u4fdd\u4e86\u91d1\u878d\u4ea4\u6613\u7684\u5b89\u5168\u548c\u9ad8\u6548\u3002<\/p>\n\n\n\n\n

        \u3000\u3000\u4e94\u3001\u672a\u6765\u5c55\u671b<\/strong><\/p>\n\n\n\n\n

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