{"id":31916,"date":"2025-01-09T23:49:47","date_gmt":"2025-01-09T15:49:47","guid":{"rendered":"https:\/\/www.yunshan.net\/blog\/?p=23907"},"modified":"2025-01-09T23:49:47","modified_gmt":"2025-01-09T15:49:47","slug":"ebpf%e5%a6%82%e4%bd%95%e5%9c%a8%e4%b8%8d%e4%bf%ae%e6%94%b9%e5%86%85%e6%a0%b8%e4%bb%a3%e7%a0%81%e7%9a%84%e6%83%85%e5%86%b5%e4%b8%8b%e6%89%a9%e5%b1%95%e5%8a%9f%e8%83%bd%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.yunshan.net\/blog\/archives\/31916.html","title":{"rendered":"eBPF\u5982\u4f55\u5728\u4e0d\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u6269\u5c55\u529f\u80fd\uff1f"},"content":{"rendered":"

\t\t\t\t\n\n

\"eBPF\u5982\u4f55\u5728\u4e0d\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u6269\u5c55\u529f\u80fd\uff1f\"<\/p>\n\n<\/p>\n\n\n\n

\u5728\u5f53\u4eca\u7684\u4e91\u8ba1\u7b97\u548c\u5fae\u670d\u52a1\u67b6\u6784\u4e2d\uff0c\u5185\u6838\u7684\u6027\u80fd\u548c\u53ef\u89c2\u6d4b\u6027\u6210\u4e3a\u4e86\u7cfb\u7edf\u4f18\u5316\u7684\u5173\u952e\u3002\u7136\u800c\uff0c\u4f20\u7edf\u7684\u5185\u6838\u6269\u5c55\u65b9\u5f0f\u5f80\u5f80\u9700\u8981\u4fee\u6539\u5185\u6838\u4ee3\u7801\uff0c\u8fd9\u4e0d\u4ec5\u5e26\u6765\u4e86\u517c\u5bb9\u6027\u95ee\u9898\uff0c\u8fd8\u589e\u52a0\u4e86\u7cfb\u7edf\u7684\u590d\u6742\u6027\u548c\u98ce\u9669\u3002eBPF\uff08Extended Berkeley Packet Filter\uff09\u4f5c\u4e3a\u4e00\u79cd\u9769\u547d\u6027\u7684\u6280\u672f\uff0c\u63d0\u4f9b\u4e86\u4e00\u79cd\u5168\u65b0\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u4f7f\u5f97\u6211\u4eec\u80fd\u591f\u5728\u4e0d\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u52a8\u6001\u5730\u6269\u5c55\u5185\u6838\u529f\u80fd\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8eBPF\u5982\u4f55\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\uff0c\u5e76\u5206\u6790\u5176\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u4f18\u52bf\u3002<\/p>\n\n\n\n\n

eBPF\u7684\u57fa\u672c\u539f\u7406<\/h3>\n\n\n\n\n

eBPF\u6700\u521d\u662f\u4e3a\u4e86\u9ad8\u6548\u5904\u7406\u7f51\u7edc\u6570\u636e\u5305\u800c\u8bbe\u8ba1\u7684\uff0c\u4f46\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u5b83\u7684\u5e94\u7528\u8303\u56f4\u5df2\u7ecf\u6269\u5c55\u5230\u4e86\u7cfb\u7edf\u8ddf\u8e2a\u3001\u6027\u80fd\u5206\u6790\u3001\u5b89\u5168\u76d1\u63a7\u7b49\u591a\u4e2a\u9886\u57df\u3002eBPF\u7684\u6838\u5fc3\u601d\u60f3\u662f\u901a\u8fc7\u5728\u5185\u6838\u4e2d\u8fd0\u884c\u7528\u6237\u5b9a\u4e49\u7684\u4ee3\u7801\uff0c\u6765\u5b9e\u73b0\u5bf9\u5185\u6838\u884c\u4e3a\u7684\u76d1\u63a7\u548c\u4fee\u6539<\/strong>\u3002\u8fd9\u4e9b\u4ee3\u7801\u4ee5\u5b57\u8282\u7801\u7684\u5f62\u5f0f\u5b58\u5728\uff0c\u7ecf\u8fc7\u9a8c\u8bc1\u540e\u52a0\u8f7d\u5230\u5185\u6838\u4e2d\u6267\u884c\uff0c\u4ece\u800c\u907f\u514d\u4e86\u76f4\u63a5\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u9700\u6c42\u3002<\/p>\n\n\n\n\n

eBPF\u7a0b\u5e8f\u901a\u5e38\u7531\u4e24\u90e8\u5206\u7ec4\u6210\uff1a\u5185\u6838\u90e8\u5206\u548c\u7528\u6237\u7a7a\u95f4\u90e8\u5206<\/strong>\u3002\u5185\u6838\u90e8\u5206\u8d1f\u8d23\u6267\u884c\u5177\u4f53\u7684\u76d1\u63a7\u6216\u4fee\u6539\u64cd\u4f5c\uff0c\u800c\u7528\u6237\u7a7a\u95f4\u90e8\u5206\u5219\u8d1f\u8d23\u52a0\u8f7d\u548c\u7ba1\u7406\u8fd9\u4e9b\u7a0b\u5e8f\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0ceBPF\u5b9e\u73b0\u4e86\u5185\u6838\u529f\u80fd\u7684\u52a8\u6001\u6269\u5c55\uff0c\u800c\u65e0\u9700\u91cd\u65b0\u7f16\u8bd1\u6216\u91cd\u542f\u5185\u6838\u3002<\/p>\n\n\n\n\n

eBPF\u7684\u5de5\u4f5c\u6d41\u7a0b<\/h3>\n\n\n\n\n
    \n\n\n
  1. \n\n

    \u7f16\u5199eBPF\u7a0b\u5e8f<\/strong>\uff1a\u5f00\u53d1\u8005\u4f7f\u7528C\u8bed\u8a00\u6216\u9ad8\u7ea7\u8bed\u8a00\uff08\u5982Rust\uff09\u7f16\u5199eBPF\u7a0b\u5e8f\uff0c\u8fd9\u4e9b\u7a0b\u5e8f\u5b9a\u4e49\u4e86\u9700\u8981\u5728\u5185\u6838\u4e2d\u6267\u884c\u7684\u64cd\u4f5c\u3002<\/p>\n\n\n<\/li>\n\n\n\n\n

  2. \n\n

    \u7f16\u8bd1\u548c\u9a8c\u8bc1<\/strong>\uff1aeBPF\u7a0b\u5e8f\u4f1a\u88ab\u7f16\u8bd1\u6210\u5b57\u8282\u7801\uff0c\u5e76\u901a\u8fc7\u5185\u6838\u7684\u9a8c\u8bc1\u5668\u8fdb\u884c\u5b89\u5168\u68c0\u67e5\uff0c\u786e\u4fdd\u5176\u4e0d\u4f1a\u5bf9\u7cfb\u7edf\u9020\u6210\u5371\u5bb3\u3002<\/p>\n\n\n<\/li>\n\n\n\n\n

  3. \n\n

    \u52a0\u8f7d\u5230\u5185\u6838<\/strong>\uff1a\u7ecf\u8fc7\u9a8c\u8bc1\u7684eBPF\u7a0b\u5e8f\u4f1a\u88ab\u52a0\u8f7d\u5230\u5185\u6838\u4e2d\uff0c\u5e76\u9644\u52a0\u5230\u7279\u5b9a\u7684\u5185\u6838\u4e8b\u4ef6\u6216\u94a9\u5b50\uff08hook\uff09\u4e0a\u3002<\/p>\n\n\n<\/li>\n\n\n\n\n

  4. \n\n

    \u6267\u884c\u548c\u53cd\u9988<\/strong>\uff1a\u5f53\u76f8\u5173\u4e8b\u4ef6\u53d1\u751f\u65f6\uff0ceBPF\u7a0b\u5e8f\u4f1a\u88ab\u89e6\u53d1\u6267\u884c\uff0c\u5e76\u5c06\u7ed3\u679c\u8fd4\u56de\u7ed9\u7528\u6237\u7a7a\u95f4\u7a0b\u5e8f\uff0c\u4f9b\u8fdb\u4e00\u6b65\u5206\u6790\u548c\u5904\u7406\u3002<\/p>\n\n\n<\/li>\n\n\n<\/ol>\n\n\n\n\n

    eBPF\u7684\u4f18\u52bf<\/h3>\n\n\n\n\n

    1. \u65e0\u9700\u4fee\u6539\u5185\u6838\u4ee3\u7801<\/strong>\uff1aeBPF\u7684\u6700\u5927\u4f18\u52bf\u5728\u4e8e\u5b83\u5141\u8bb8\u5f00\u53d1\u8005\u5728\u4e0d\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\uff0c\u52a8\u6001\u5730\u6269\u5c55\u5185\u6838\u529f\u80fd\u3002\u8fd9\u4e0d\u4ec5\u964d\u4f4e\u4e86\u5f00\u53d1\u96be\u5ea6\uff0c\u8fd8\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n\n

    2. \u9ad8\u6027\u80fd<\/strong>\uff1aeBPF\u7a0b\u5e8f\u5728\u5185\u6838\u4e2d\u76f4\u63a5\u6267\u884c\uff0c\u907f\u514d\u4e86\u7528\u6237\u7a7a\u95f4\u548c\u5185\u6838\u7a7a\u95f4\u4e4b\u95f4\u7684\u9891\u7e41\u5207\u6362\uff0c\u4ece\u800c\u5927\u5927\u63d0\u9ad8\u4e86\u6027\u80fd\u3002<\/p>\n\n\n\n\n

    3. \u7075\u6d3b\u6027<\/strong>\uff1aeBPF\u652f\u6301\u591a\u79cd\u7f16\u7a0b\u8bed\u8a00\u548c\u5de5\u5177\u94fe\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u5de5\u5177\u8fdb\u884c\u5f00\u53d1\u3002<\/p>\n\n\n\n\n

    4. \u5b89\u5168\u6027<\/strong>\uff1aeBPF\u7a0b\u5e8f\u5728\u52a0\u8f7d\u5230\u5185\u6838\u4e4b\u524d\uff0c\u4f1a\u7ecf\u8fc7\u4e25\u683c\u7684\u9a8c\u8bc1\uff0c\u786e\u4fdd\u5176\u4e0d\u4f1a\u5bf9\u7cfb\u7edf\u9020\u6210\u5371\u5bb3\u3002<\/p>\n\n\n\n\n

    eBPF\u7684\u5b9e\u9645\u5e94\u7528<\/h3>\n\n\n\n\n

    1. \u7f51\u7edc\u76d1\u63a7<\/strong>\uff1aeBPF\u53ef\u4ee5\u7528\u4e8e\u5b9e\u65f6\u76d1\u63a7\u7f51\u7edc\u6d41\u91cf\uff0c\u8bc6\u522b\u5f02\u5e38\u884c\u4e3a\uff0c\u5e76\u8fdb\u884c\u6d41\u91cf\u63a7\u5236\u3002\u4f8b\u5982\uff0cFacebook\u4f7f\u7528eBPF\u6765\u4f18\u5316\u5176\u6570\u636e\u4e2d\u5fc3\u7f51\u7edc\u6027\u80fd\u3002<\/p>\n\n\n\n\n

    2. \u7cfb\u7edf\u8ddf\u8e2a<\/strong>\uff1aeBPF\u53ef\u4ee5\u7528\u4e8e\u8ddf\u8e2a\u7cfb\u7edf\u8c03\u7528\u3001\u6587\u4ef6\u64cd\u4f5c\u7b49\u5185\u6838\u4e8b\u4ef6\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u8bca\u65ad\u6027\u80fd\u74f6\u9888\u548c\u8c03\u8bd5\u95ee\u9898\u3002<\/p>\n\n\n\n\n

    3. \u5b89\u5168\u76d1\u63a7<\/strong>\uff1aeBPF\u53ef\u4ee5\u7528\u4e8e\u68c0\u6d4b\u548c\u963b\u6b62\u6076\u610f\u884c\u4e3a\uff0c\u5982DDoS\u653b\u51fb\u3001\u6076\u610f\u8f6f\u4ef6\u7b49\u3002\u4f8b\u5982\uff0cCilium\u9879\u76ee\u4f7f\u7528eBPF\u6765\u5b9e\u73b0\u5bb9\u5668\u7f51\u7edc\u7684\u5b89\u5168\u7b56\u7565\u3002<\/p>\n\n\n\n\n

    4. \u6027\u80fd\u5206\u6790<\/strong>\uff1aeBPF\u53ef\u4ee5\u7528\u4e8e\u6536\u96c6\u7cfb\u7edf\u7684\u6027\u80fd\u6570\u636e\uff0c\u5982CPU\u4f7f\u7528\u7387\u3001\u5185\u5b58\u5360\u7528\u7b49\uff0c\u5e2e\u52a9\u5f00\u53d1\u8005\u4f18\u5316\u7cfb\u7edf\u6027\u80fd\u3002<\/p>\n\n\n\n\n

    eBPF\u7684\u6311\u6218\u4e0e\u672a\u6765<\/h3>\n\n\n\n\n

    \u5c3d\u7ba1eBPF\u5177\u6709\u8bf8\u591a\u4f18\u52bf\uff0c\u4f46\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u4ecd\u9762\u4e34\u4e00\u4e9b\u6311\u6218\u3002\u9996\u5148\uff0ceBPF\u7a0b\u5e8f\u7684\u7f16\u5199\u548c\u8c03\u8bd5\u76f8\u5bf9\u590d\u6742\uff0c\u9700\u8981\u5f00\u53d1\u8005\u5177\u5907\u4e00\u5b9a\u7684\u5185\u6838\u7f16\u7a0b\u7ecf\u9a8c<\/strong>\u3002\u5176\u6b21\uff0ceBPF\u7684\u9a8c\u8bc1\u673a\u5236\u867d\u7136\u4e25\u683c\uff0c\u4f46\u4ecd\u53ef\u80fd\u5b58\u5728\u6f0f\u6d1e\uff0c\u5bfc\u81f4\u7cfb\u7edf\u5b89\u5168\u95ee\u9898\u3002<\/p>\n\n\n\n\n

    \u7136\u800c\uff0c\u968f\u7740eBPF\u751f\u6001\u7cfb\u7edf\u7684\u4e0d\u65ad\u5b8c\u5584\uff0c\u8fd9\u4e9b\u6311\u6218\u6b63\u5728\u9010\u6b65\u88ab\u514b\u670d\u3002\u8d8a\u6765\u8d8a\u591a\u7684\u5de5\u5177\u548c\u6846\u67b6\u88ab\u5f00\u53d1\u51fa\u6765\uff0c\u7b80\u5316\u4e86eBPF\u7a0b\u5e8f\u7684\u7f16\u5199\u548c\u8c03\u8bd5\u8fc7\u7a0b\u3002\u540c\u65f6\uff0c\u793e\u533a\u4e5f\u5728\u4e0d\u65ad\u6539\u8fdbeBPF\u7684\u9a8c\u8bc1\u673a\u5236\uff0c\u63d0\u9ad8\u5176\u5b89\u5168\u6027\u3002<\/p>\n\n\n\n\n

    \u672a\u6765\uff0ceBPF\u6709\u671b\u5728\u66f4\u591a\u9886\u57df\u5f97\u5230\u5e94\u7528\uff0c\u5982\u4e91\u8ba1\u7b97\u3001\u8fb9\u7f18\u8ba1\u7b97\u3001\u7269\u8054\u7f51\u7b49\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u8fdb\u6b65\uff0ceBPF\u5c06\u6210\u4e3a\u5185\u6838\u529f\u80fd\u6269\u5c55\u7684\u4e3b\u6d41\u65b9\u5f0f\uff0c\u4e3a\u7cfb\u7edf\u4f18\u5316\u548c\u6027\u80fd\u63d0\u5347\u63d0\u4f9b\u5f3a\u5927\u7684\u652f\u6301\u3002<\/p>\n\n\n\n\n

    \u7ed3\u8bed<\/h3>\n\n\n\n\n

    eBPF\u4f5c\u4e3a\u4e00\u79cd\u521b\u65b0\u7684\u5185\u6838\u6269\u5c55\u6280\u672f\uff0c\u6b63\u5728\u6539\u53d8\u6211\u4eec\u5bf9\u7cfb\u7edf\u76d1\u63a7\u548c\u6027\u80fd\u4f18\u5316\u7684\u7406\u89e3\u3002\u901a\u8fc7\u5728\u4e0d\u4fee\u6539\u5185\u6838\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u52a8\u6001\u6269\u5c55\u529f\u80fd\uff0ceBPF\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u524d\u6240\u672a\u6709\u7684\u7075\u6d3b\u6027\u548c\u6027\u80fd\u4f18\u52bf\u3002\u968f\u7740\u5176\u5e94\u7528\u8303\u56f4\u7684\u4e0d\u65ad\u6269\u5927\uff0ceBPF\u5c06\u5728\u672a\u6765\u7684\u7cfb\u7edf\u67b6\u6784\u4e2d\u626e\u6f14\u8d8a\u6765\u8d8a\u91cd\u8981\u7684\u89d2\u8272\u3002<\/p>\n\n\n ]]>\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"

    \t\t\t\t\t\t<\/p>\n","protected":false},"author":5,"featured_media":23908,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-31916","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-discussion"],"_links":{"self":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/31916","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/comments?post=31916"}],"version-history":[{"count":0,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/posts\/31916\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media\/23908"}],"wp:attachment":[{"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/media?parent=31916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/categories?post=31916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunshan.net\/blog\/wp-json\/wp\/v2\/tags?post=31916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}